/* ── Fonts & Icons ── */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Roboto:wght@400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200&display=swap');

/* ── Material 3 Sleek Custom Scrollbars (Light & Dark Theme) ── */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.16) transparent;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: rgba(255, 255, 255, 0.18);
  border-radius: 9999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
  background-color: rgba(255, 255, 255, 0.35);
}

::-webkit-scrollbar-corner {
  background: transparent;
}

[data-theme="light"] * {
  scrollbar-color: rgba(0, 0, 0, 0.18) transparent;
}

[data-theme="light"] ::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background-color: rgba(0, 0, 0, 0.38);
}

/**
 * miMail Material 3 Responsive Design System (mimail.css)
 * Mobile-First & Desktop Responsive Email Platform
 * Dark Mode Background: #1f1f1f
 * Accent Policy: Buttons, links, FAB, progress bar, active pills ONLY
 */

/* ── CSS Design Tokens & Theming ── */
:root {
  --mail-bg: #f8f9fa;
  --mail-surface: #ffffff;
  --mail-surface-container: #f1f3f4;
  --mail-surface-low: #ffffff;
  --mail-hover: rgba(0, 0, 0, 0.05);
  --mail-border: rgba(0, 0, 0, 0.08);
  --mail-border-subtle: rgba(0, 0, 0, 0.04);
  --mail-text: #1f1f1f;
  --mail-text-sub: #5f6368;
  --mail-accent: #7c3aed;
  --mail-accent-hover: #6d28d9;
  --mail-accent-gradient: linear-gradient(135deg, #e11d48, #9333ea, #4f46e5);
  --mail-accent-text: #ffffff;
  --mail-active-pill: #ede9fe;
  --mail-active-pill-text: #5b21b6;
  --mail-search-bg: #ede9fe;
  --mail-search-bg-focus: #e4ddfc;
  --mail-unread-bg: #ffffff;
  --mail-read-bg: #f8f9fa;
  --mail-sidebar-width: 260px;
  --mail-header-height: 64px;
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --shadow-fab: 0 4px 16px rgba(124, 58, 237, 0.35);
}

[data-theme="dark"] {
  --mail-bg: #1f1f1f;
  --mail-surface: #252525;
  --mail-surface-container: #2b2b2b;
  --mail-surface-low: #1f1f1f;
  --mail-hover: rgba(255, 255, 255, 0.06);
  --mail-border: rgba(255, 255, 255, 0.08);
  --mail-border-subtle: rgba(255, 255, 255, 0.04);
  --mail-text: #f2f2f2;
  --mail-text-sub: #9aa0a6;
  --mail-accent: #8b5cf6;
  --mail-accent-hover: #a78bfa;
  --mail-accent-gradient: linear-gradient(135deg, #ec4899, #8b5cf6, #6366f1);
  --mail-accent-text: #ffffff;
  --mail-active-pill: rgba(139, 92, 246, 0.16);
  --mail-active-pill-text: #c4b5fd;
  --mail-search-bg: rgba(139, 92, 246, 0.16);
  --mail-search-bg-focus: rgba(139, 92, 246, 0.24);
  --mail-unread-bg: #272727;
  --mail-read-bg: #202020;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.6);
  --shadow-fab: 0 6px 20px rgba(139, 92, 246, 0.4);
}

/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
}

body.mimail-body {
  background-color: var(--mail-bg);
  color: var(--mail-text);
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.material-symbols-outlined {
  font-family: 'Material Symbols Outlined' !important;
  font-weight: normal;
  font-style: normal;
  font-size: 22px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
}

/* ── Gmail-Style Splash Screen & Progress Bar ── */
.mimail-splash-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--mail-bg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 350ms cubic-bezier(0.4, 0, 0.2, 1), visibility 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

.mimail-splash-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash-center-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  animation: splashLogoEntry 500ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes splashLogoEntry {
  from { opacity: 0; transform: scale(0.85); }
  to { opacity: 1; transform: scale(1); }
}

.splash-logo-img {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  object-fit: contain;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
}

.splash-brand-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--mail-text);
  margin-top: 4px;
}

.splash-brand-subtitle {
  font-size: 13px;
  color: var(--mail-text-sub);
  font-weight: 500;
}

/* Gmail-style bottom linear loading bar */
.splash-progress-wrapper {
  position: absolute;
  bottom: 52px;
  left: 50%;
  transform: translateX(-50%);
  width: 240px;
  height: 4px;
  background: var(--mail-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.splash-progress-bar {
  width: 100%;
  height: 100%;
  background: var(--mail-accent-gradient);
  border-radius: var(--radius-full);
  transform-origin: left;
  animation: gmailLoaderIndeterminate 1.4s infinite ease-in-out;
}

@keyframes gmailLoaderIndeterminate {
  0% { transform: translateX(-100%) scaleX(0.2); }
  50% { transform: translateX(0) scaleX(0.6); }
  100% { transform: translateX(100%) scaleX(0.2); }
}

/* ── Top Header Navigation ── */
.mimail-header {
  height: var(--mail-header-height);
  min-height: var(--mail-header-height);
  background-color: var(--mail-bg);
  border: none !important; border-bottom: none !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  gap: 16px;
}

.header-left-cluster {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.mimail-menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--mail-text);
  cursor: pointer;
  transition: background 150ms ease;
  padding: 0;
}

.mimail-menu-toggle:hover {
  background: var(--mail-hover);
}

.mimail-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--mail-text);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.3px;
}

.mimail-brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: contain;
}

/* Center Search Pill (Material 3) */
.mimail-search-form {
  flex: 1;
  max-width: 640px;
  margin: 0 16px;
}

.mimail-search-box {
  display: flex;
  align-items: center;
  background: var(--mail-search-bg);
  border: none !important;
  border-radius: var(--radius-full);
  padding: 8px 18px;
  gap: 12px;
  box-shadow: none !important;
  transition: all 180ms ease;
}

.mimail-search-box:focus-within {
  background: var(--mail-search-bg-focus);
  border: none !important;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08) !important;
}

.mimail-search-input {
  border: none;
  background: transparent;
  color: var(--mail-text);
  width: 100%;
  font-size: 14px;
  outline: none;
  font-family: inherit;
}

.mimail-search-input::placeholder {
  color: var(--mail-text-sub);
}

.header-right-cluster {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.g-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--mail-text);
  cursor: pointer;
  text-decoration: none;
  transition: background 150ms ease;
}

.g-icon-btn:hover {
  background: var(--mail-hover);
}

.g-avatar-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--mail-hover);
  color: var(--mail-text);
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  padding: 0;
  overflow: hidden;
  transition: opacity 150ms ease;
}

.g-avatar-btn:hover {
  opacity: 0.9;
}

/* ── Main Layout Container ── */
.mimail-app-container {
  display: flex;
  flex: 1;
  width: 100%;
  min-height: calc(100vh - var(--mail-header-height));
  background-color: var(--mail-bg);
  position: relative;
}



/* ── Gmail-Style Desktop Sidebar & Synchronized Right-to-Left Slide Animation ── */
.mimail-sidebar {
  width: var(--mail-sidebar-width);
  min-width: var(--mail-sidebar-width);
  background-color: var(--mail-bg);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-shrink: 0;
  border: none !important;
  box-shadow: none !important;
  transition: width 300ms cubic-bezier(0.2, 0, 0, 1),
              padding 300ms cubic-bezier(0.2, 0, 0, 1),
              background-color 200ms ease;
  z-index: 100;
  overflow-x: hidden;
  overflow-y: auto;
  box-sizing: border-box;
}

/* Compose Button (Material 3 Dynamic Pill) */
.btn-compose {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--mail-accent-gradient);
  color: var(--mail-accent-text);
  height: 52px;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 16px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  box-shadow: var(--shadow-fab);
  transition: width 300ms cubic-bezier(0.2, 0, 0, 1),
              max-width 300ms cubic-bezier(0.2, 0, 0, 1),
              padding 300ms cubic-bezier(0.2, 0, 0, 1),
              border-radius 300ms cubic-bezier(0.2, 0, 0, 1),
              transform 180ms ease,
              filter 180ms ease;
  margin-bottom: 14px;
  border: none;
  cursor: pointer;
  width: auto;
  min-width: 52px;
  max-width: 170px;
  overflow: hidden;
  white-space: nowrap;
  box-sizing: border-box;
}

.btn-compose:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.btn-compose:active {
  transform: translateY(0);
}

.btn-compose .material-symbols-outlined {
  font-size: 22px;
  flex-shrink: 0;
}

/* Sidebar Navigation Items */
.sidebar-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 44px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: var(--radius-full);
  color: var(--mail-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: background 150ms ease,
              color 150ms ease,
              width 300ms cubic-bezier(0.2, 0, 0, 1),
              padding 300ms cubic-bezier(0.2, 0, 0, 1),
              border-radius 300ms ease;
  cursor: pointer;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.sidebar-nav-item:hover {
  background: var(--mail-hover);
}

.sidebar-nav-item.active {
  background: var(--mail-active-pill);
  color: var(--mail-active-pill-text);
  font-weight: 700;
}

.sidebar-nav-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  flex: 1;
  transition: gap 300ms cubic-bezier(0.2, 0, 0, 1);
}

.sidebar-nav-left .material-symbols-outlined {
  font-size: 21px;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}

/* Synchronized Right-to-Left Slide & Fade Animation for Text */
.sidebar-label {
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  opacity: 1;
  max-width: 170px;
  transform: translateX(0);
  transition: opacity 280ms cubic-bezier(0.2, 0, 0, 1),
              max-width 300ms cubic-bezier(0.2, 0, 0, 1),
              transform 300ms cubic-bezier(0.2, 0, 0, 1);
  will-change: opacity, max-width, transform;
}

/* Unread Badge Slide & Fade Animation */
.unread-badge {
  background: var(--mail-accent);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  opacity: 1;
  max-width: 50px;
  transform: translateX(0) scale(1);
  transition: opacity 240ms cubic-bezier(0.2, 0, 0, 1),
              max-width 300ms cubic-bezier(0.2, 0, 0, 1),
              transform 300ms cubic-bezier(0.2, 0, 0, 1);
  flex-shrink: 0;
  white-space: nowrap;
  overflow: hidden;
}

/* ── Collapsed Rail Mode: Smooth Slide Right-to-Left into Icons ── */
.mimail-app-container.sidebar-collapsed .mimail-sidebar {
  width: 76px;
  min-width: 76px;
  padding: 12px 10px;
  align-items: center;
}

.mimail-app-container.sidebar-collapsed .btn-compose {
  max-width: 52px;
  width: 52px;
  padding: 0;
  justify-content: center;
  border-radius: 16px;
}

.mimail-app-container.sidebar-collapsed .sidebar-nav-item {
  width: 52px;
  height: 44px;
  padding: 0;
  justify-content: center;
  border-radius: var(--radius-full);
}

.mimail-app-container.sidebar-collapsed .sidebar-nav-left {
  justify-content: center;
  flex: none;
  gap: 0;
}

.mimail-app-container.sidebar-collapsed .sidebar-label {
  opacity: 0;
  max-width: 0;
  transform: translateX(-24px); /* Fluid slide from right to left */
  pointer-events: none;
}

.mimail-app-container.sidebar-collapsed .unread-badge {
  opacity: 0;
  max-width: 0;
  transform: translateX(-16px) scale(0.5);
  pointer-events: none;
}

/* ── Gmail Hover Expansion: Floating Overlay on Hover ── */
@media (min-width: 769px) {
  .mimail-app-container.sidebar-collapsed .mimail-sidebar:hover {
    width: var(--mail-sidebar-width);
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background-color: var(--mail-surface);
    box-shadow: var(--shadow-md) !important;
    border: none !important;
    padding: 12px 14px;
    align-items: stretch;
    z-index: 1000;
  }

  .mimail-app-container.sidebar-collapsed .mimail-sidebar:hover .btn-compose {
    max-width: 170px;
    width: auto;
    padding: 0 22px;
    justify-content: flex-start;
  }

  .mimail-app-container.sidebar-collapsed .mimail-sidebar:hover .sidebar-nav-item {
    width: 100%;
    padding: 0 16px;
    justify-content: space-between;
  }

  .mimail-app-container.sidebar-collapsed .mimail-sidebar:hover .sidebar-nav-left {
    justify-content: flex-start;
    flex: 1;
    gap: 14px;
  }

  .mimail-app-container.sidebar-collapsed .mimail-sidebar:hover .sidebar-label {
    opacity: 1;
    max-width: 170px;
    transform: translateX(0);
    pointer-events: auto;
  }

  .mimail-app-container.sidebar-collapsed .mimail-sidebar:hover .unread-badge {
    opacity: 1;
    max-width: 50px;
    transform: translateX(0) scale(1);
    pointer-events: auto;
  }
}


/* ── Main Mail Area Container ── */
.mimail-main {
  flex: 1;
  min-width: 0;
  background-color: var(--mail-surface);
  border-radius: var(--radius-xl);
  margin: 0 16px 16px 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: none !important;
  box-shadow: none !important;
}

[data-theme="dark"] .mimail-main {
  background-color: var(--mail-surface);
  border: none !important;
  box-shadow: none !important;
}

.mail-toolbar {
  padding: 12px 20px;
  border: none !important;
  border-bottom: none !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--mail-surface);
}

.mail-toolbar-title {
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: capitalize;
  color: var(--mail-text);
}

.mail-toolbar-badge {
  font-size: 12px;
  color: var(--mail-text-sub);
  background: var(--mail-hover);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  border: none !important;
}

/* ── Mail List Items (Material 3 Flat) ── */
.mail-list {
  display: flex;
  flex-direction: column;
  width: 100%;
  flex: 1;
  overflow-y: auto;
  border: none !important;
}

.mail-item {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  border: none !important;
  border-bottom: none !important;
  box-shadow: none !important;
  text-decoration: none !important;
  color: var(--mail-text) !important;
  gap: 16px;
  background: var(--mail-read-bg);
  transition: background 150ms ease;
  width: 100%;
}

.mail-item:hover {
  background: var(--mail-hover);
}

.mail-item.unread {
  background: var(--mail-unread-bg);
  font-weight: 700;
}

.mail-item.unread .mail-sender-name,
.mail-item.unread .mail-subject-title {
  color: var(--mail-text);
  font-weight: 700;
}

.mail-star {
  color: var(--mail-text-sub);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: color 150ms ease, transform 150ms ease;
  flex-shrink: 0;
}

.mail-star:hover {
  transform: scale(1.15);
}

.mail-star.starred {
  color: #f59e0b;
}

.mail-sender-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--mail-hover);
  color: var(--mail-text);
  border: none !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.mail-content-preview {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mail-sender-name {
  font-size: 14px;
  color: var(--mail-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
}

.mail-subject-snippet {
  font-size: 13px;
  color: var(--mail-text-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mail-subject-title {
  color: var(--mail-text);
}

.mail-date {
  font-size: 12px;
  color: var(--mail-text-sub);
  white-space: nowrap;
  flex-shrink: 0;
  font-weight: 500;
}

/* ── Google-Style Account Chooser Screen ── */
.mimail-auth-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 80px);
  padding: 32px 16px;
  width: 100%;
}

.m3-account-card {
  width: 100%;
  max-width: 440px;
  background: var(--mail-surface);
  border: none !important;
  border-radius: 28px;
  box-shadow: none !important;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.m3-account-header-logo {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  object-fit: contain;
  margin-bottom: 16px;
}

.m3-account-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--mail-text);
  margin-bottom: 6px;
}

.m3-account-subtitle {
  font-size: 14px;
  color: var(--mail-text-sub);
  margin-bottom: 24px;
}

.m3-account-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.m3-account-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  border: none !important;
  background: transparent;
  color: var(--mail-text);
  text-decoration: none;
  cursor: pointer;
  transition: all 150ms ease;
  width: 100%;
  text-align: left;
}

.m3-account-row:hover {
  background: var(--mail-hover);
}

.m3-account-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--mail-hover);
  border: none !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  color: var(--mail-text);
  flex-shrink: 0;
  overflow: hidden;
}

.m3-account-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.m3-account-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.m3-account-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--mail-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.m3-account-email {
  font-size: 12px;
  color: var(--mail-text-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.m3-account-badge {
  font-size: 11px;
  color: var(--mail-text-sub);
  background: var(--mail-hover);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.m3-account-action-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  color: var(--mail-accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: background 150ms ease;
  width: 100%;
}

.m3-account-action-row:hover {
  background: var(--mail-hover);
}

.m3-btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--mail-accent-gradient);
  color: var(--mail-accent-text);
  font-weight: 700;
  font-size: 14.5px;
  border-radius: var(--radius-full);
  padding: 12px 32px;
  border: none !important;
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--shadow-fab);
  transition: all 150ms ease;
}

.m3-btn-accent:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.m3-btn-outlined {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--mail-text);
  font-weight: 600;
  font-size: 14px;
  border-radius: var(--radius-full);
  padding: 10px 24px;
  border: 1px solid var(--mail-border);
  cursor: pointer;
  text-decoration: none;
  transition: background 150ms ease;
}

.m3-btn-outlined:hover {
  background: var(--mail-hover);
}

/* ── Floating Account Profile Popover (Google Style) ── */
.account-profile-popover {
  position: fixed !important;
  top: 72px !important;
  right: 20px !important;
  width: 330px !important;
  max-width: calc(100vw - 32px) !important;
  background-color: var(--mail-surface) !important;
  border: none !important;
  border-radius: 28px !important;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4) !important;
  padding: 24px !important;
  z-index: 2000 !important;
  display: none;
  flex-direction: column !important;
  align-items: center !important;
  text-align: center !important;
  box-sizing: border-box !important;
  animation: popoverFadeIn 180ms ease forwards;
}

@keyframes popoverFadeIn {
  from { opacity: 0; transform: translateY(-8px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.popover-user-email {
  font-size: 13px !important;
  color: var(--mail-text-sub) !important;
  margin-bottom: 12px !important;
  word-break: break-all !important;
  font-weight: 500 !important;
}

.popover-avatar-lg {
  width: 72px !important;
  height: 72px !important;
  border-radius: 50% !important;
  background: var(--mail-accent-gradient) !important;
  color: #ffffff !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 28px !important;
  font-weight: 800 !important;
  margin: 8px auto 12px !important;
  overflow: hidden !important;
  border: none !important;
}

.popover-user-name {
  font-size: 1.15rem !important;
  font-weight: 800 !important;
  color: var(--mail-text) !important;
  text-align: center !important;
  margin-bottom: 16px !important;
}

.popover-manage-btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  border: none !important;
  border-radius: 100px !important;
  padding: 10px 20px !important;
  color: var(--mail-text) !important;
  text-decoration: none !important;
  font-weight: 600 !important;
  font-size: 13.5px !important;
  width: 100% !important;
  box-sizing: border-box !important;
  background: var(--mail-hover) !important;
  transition: all 150ms ease !important;
}

.popover-manage-btn:hover {
  background: var(--mail-border) !important;
}

.popover-action-row {
  display: flex !important;
  align-items: center !important;
  gap: 12px !important;
  padding: 10px 14px !important;
  border-radius: 12px !important;
  color: var(--mail-text) !important;
  text-decoration: none !important;
  font-size: 14px !important;
  font-weight: 500 !important;
  transition: background 150ms ease !important;
}

.popover-action-row:hover {
  background: var(--mail-hover) !important;
}

/* ── Compose Modal & Compose Page ── */
.mimail-compose-modal {
  position: fixed;
  bottom: 0;
  right: 60px;
  width: 580px;
  height: 540px;
  background: var(--mail-surface);
  border: none !important;
  border-radius: 16px 16px 0 0;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  display: none;
  flex-direction: column;
  overflow: hidden;
  animation: composePopUp 200ms cubic-bezier(0, 0, 0.2, 1) forwards;
}

@keyframes composePopUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.compose-cancel-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  color: var(--mail-text);
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background-color 150ms ease;
}

.compose-cancel-btn:hover {
  background-color: var(--mail-hover);
}

.compose-cancel-btn .material-symbols-outlined {
  font-size: 20px;
}

.compose-header-bar {
  background: var(--mail-surface-container);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: none !important;
}

.compose-field-row {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  border-bottom: none !important;
  gap: 12px;
}

.compose-field-label {
  font-size: 14px;
  color: var(--mail-text-sub);
  width: 32px;
  font-weight: 600;
}

.compose-field-input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--mail-text);
  font-size: 14px;
  outline: none;
  font-family: inherit;
}

.compose-body-textarea {
  width: 100%;
  flex: 1;
  border: none;
  background: transparent;
  color: var(--mail-text);
  font-size: 14px;
  outline: none;
  resize: none;
  font-family: inherit;
  line-height: 1.6;
  min-height: 220px;
}

.compose-bottom-toolbar {
  padding: 12px 20px;
  border-top: none !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--mail-surface);
}

.compose-tool-icon {
  cursor: pointer;
  font-size: 20px;
  color: var(--mail-text-sub);
  transition: color 150ms ease;
}

.compose-tool-icon:hover {
  color: var(--mail-accent);
}

.btn-send-mail {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--mail-accent-gradient);
  color: var(--mail-accent-text);
  font-weight: 700;
  border-radius: var(--radius-full);
  padding: 10px 24px;
  font-size: 14px;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-fab);
  transition: all 150ms ease;
  text-decoration: none;
}

.btn-send-mail:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

/* ── Mobile Sidebar Drawer Scrim Backdrop ── */
.mimail-sidebar-backdrop {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 250ms cubic-bezier(0, 0, 0.2, 1), visibility 250ms cubic-bezier(0, 0, 0.2, 1);
}

@media (max-width: 768px) {
  .mimail-sidebar-backdrop.active {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
  }
}

/* ── Mobile-First Responsive Styles ── */
@media (min-width: 769px) {
  .mimail-bottom-nav,
  .mimail-mobile-fab {
    display: none !important;
  }
}

@media (max-width: 768px) {
  .mimail-app-container {
    flex-direction: column;
    min-height: calc(100vh - var(--mail-header-height));
  }

  .mimail-main {
    margin: 0;
    border-radius: 0;
    border: none !important;
    border-left: none !important;
    border-right: none !important;
    padding-bottom: 72px;
  }

  .mimail-header {
    padding: 0 12px;
    border: none !important;
    border-bottom: none !important;
    box-shadow: none !important;
  }

  .mimail-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 250ms cubic-bezier(0, 0, 0.2, 1);
    box-shadow: none !important;
    border: none !important;
    background-color: var(--mail-surface);
  }

  .mimail-sidebar.mobile-open {
    display: flex !important;
    transform: translateX(0);
    width: 280px !important;
  }

  .mimail-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background-color: var(--mail-surface);
    border: none !important;
    border-top: none !important;
    box-shadow: none !important;
    z-index: 999;
    align-items: center;
    justify-content: space-around;
    padding: 0 8px;
  }

  .bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    text-decoration: none;
    color: var(--mail-text-sub);
    font-size: 11px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    transition: all 150ms ease;
  }

  .bottom-nav-item.active {
    color: var(--mail-active-pill-text);
    background-color: var(--mail-active-pill);
  }

  .mimail-mobile-fab {
    position: fixed;
    bottom: 80px;
    right: 20px;
    background: var(--mail-accent-gradient);
    color: var(--mail-accent-text);
    border: none;
    border-radius: var(--radius-full);
    padding: 12px 20px;
    font-weight: 700;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-fab);
    z-index: 998;
    cursor: pointer;
  }

  .mimail-compose-modal {
    right: 0;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    border-radius: 0;
    border: none !important;
  }
}

@media (max-width: 576px) {
  .mimail-header {
    height: 58px;
    min-height: 58px;
    padding: 0 8px;
    border: none !important;
  }

  .mimail-search-form {
    margin: 0 4px;
  }

  .mimail-search-box {
    padding: 6px 12px;
    gap: 6px;
  }

  .mail-item {
    padding: 12px 10px;
    gap: 10px;
    border: none !important;
  }

  .mail-sender-avatar {
    width: 34px;
    height: 34px;
    font-size: 13px;
  }

  .mail-date {
    font-size: 11px;
  }
}



/* ── miMail Settings Material 3 Responsive Architecture ── */
.settings-main-container {
  padding: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  flex: 1 !important;
  min-width: 0 !important;
  height: calc(100% - 16px) !important;
  max-height: calc(100% - 16px) !important;
  overflow: hidden !important;
}

.settings-toolbar {
  padding: 12px 24px;
  min-height: 58px;
  max-height: 58px;
  box-sizing: border-box;
  border: none !important;
  border-bottom: none !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--mail-surface);
  flex-shrink: 0;
  gap: 12px;
}

.settings-toolbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.settings-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--mail-text);
  margin: 0;
  line-height: 1;
}

.settings-tabs-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  min-height: 54px;
  max-height: 54px;
  box-sizing: border-box;
  border: none !important;
  border-bottom: none !important;
  background: var(--mail-surface-container);
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  flex-shrink: 0;
}

.settings-tabs-wrapper::-webkit-scrollbar {
  display: none;
}

.settings-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  height: 36px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--mail-text);
  text-decoration: none;
  transition: all 150ms ease;
  white-space: nowrap;
  border: none !important;
  flex-shrink: 0;
  background: transparent;
  box-sizing: border-box;
  line-height: 1;
}

.settings-tab-btn:hover {
  background: var(--mail-hover);
}

.settings-tab-btn.active {
  background: var(--mail-active-pill);
  color: var(--mail-active-pill-text);
  font-weight: 700;
  border: none !important;
}

.settings-body-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 24px;
  -webkit-overflow-scrolling: touch;
  box-sizing: border-box;
}

.settings-body-content {
  max-width: 820px;
  width: 100%;
  margin: 0;
  box-sizing: border-box;
}

.settings-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--mail-surface-container);
  border: none !important;
  box-shadow: none !important;
  margin-bottom: 20px;
  box-sizing: border-box;
}

.settings-form-group {
  margin-bottom: 20px;
  width: 100%;
}

.settings-form-group:last-child {
  margin-bottom: 0;
}

.settings-label {
  display: block;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--mail-text);
}

.settings-hint {
  display: block;
  font-size: 12px;
  color: var(--mail-text-sub);
  margin-top: 4px;
  line-height: 1.4;
}

.settings-input,
.settings-textarea,
.settings-select {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--mail-bg);
  color: var(--mail-text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.settings-textarea {
  min-height: 110px;
  line-height: 1.5;
  resize: vertical;
}

.settings-input:focus,
.settings-textarea:focus,
.settings-select:focus {
  border-color: var(--mail-accent);
  box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.settings-input:disabled {
  opacity: 0.75;
  background: var(--mail-hover);
  cursor: not-allowed;
}

.settings-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  width: 100%;
  box-sizing: border-box;
}

.settings-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  width: 100%;
  box-sizing: border-box;
}

.settings-theme-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  width: 100%;
  box-sizing: border-box;
}

.settings-actions-footer {
  padding-top: 16px;
  border: none !important;
  border-top: none !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 768px) {
  html, body {
    height: auto !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
  }
  body.mimail-body {
    height: auto !important;
    min-height: 100vh !important;
    overflow-y: auto !important;
  }
  .mimail-app-container {
    height: auto !important;
    max-height: none !important;
    min-height: calc(100vh - var(--mail-header-height)) !important;
    flex-direction: column !important;
    overflow: visible !important;
  }
  .mimail-main {
    height: auto !important;
    max-height: none !important;
    margin: 0 !important;
    border-radius: 0 !important;
    border: none !important;
    border-left: none !important;
    border-right: none !important;
    overflow: visible !important;
    padding-bottom: 72px !important;
  }
  .settings-main-container {
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
  }
  .settings-body-scroll {
    overflow-y: auto !important;
    overflow-x: hidden !important;
    padding: 16px 12px calc(84px + var(--safe-bottom)) 12px !important;
    -webkit-overflow-scrolling: touch !important;
  }
  .settings-input,
  .settings-textarea,
  .settings-select {
    font-size: 16px !important; /* Prevents auto-zoom on iOS */
    padding: 12px 14px !important;
  }
  .settings-theme-card {
    padding: 14px !important;
  }
  .settings-card {
    padding: 16px 14px !important;
    border-radius: 14px !important;
    margin-bottom: 16px !important;
    border: none !important;
  }
  .settings-tabs-wrapper {
    padding: 6px 10px !important;
    gap: 6px !important;
    border: none !important;
  }
  .settings-tab-btn {
    height: 36px !important;
    padding: 6px 14px !important;
    font-size: 13px !important;
    border: none !important;
  }
  .settings-toolbar {
    min-height: auto !important;
    max-height: none !important;
    padding: 12px 14px !important;
    border: none !important;
  }
  .settings-tabs-wrapper {
    min-height: 50px !important;
    max-height: 50px !important;
    padding: 6px 12px !important;
  }
  .settings-tab-btn {
    height: 34px !important;
    padding: 6px 12px !important;
    font-size: 12.5px !important;
  }
  .settings-grid-2,
  .settings-grid-3,
  .settings-theme-grid {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
  }
  .settings-actions-footer {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 10px !important;
    border: none !important;
  }
  .settings-actions-footer button,
  .settings-actions-footer a {
    width: 100% !important;
    text-align: center !important;
    justify-content: center !important;
  }
}


/* ── Material 3 Modern Custom Checkbox, Radio, and Switch Controls ── */
.m3-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  min-width: 20px;
  min-height: 20px;
  border-radius: 6px;
  border: 2px solid var(--mail-border);
  background-color: var(--mail-surface-container);
  cursor: pointer;
  display: inline-grid;
  place-content: center;
  position: relative;
  transition: all 180ms cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  vertical-align: middle;
  margin: 0;
  flex-shrink: 0;
}

.m3-checkbox:hover {
  border-color: var(--mail-accent);
  background-color: var(--mail-hover);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.12);
}

.m3-checkbox:focus-visible {
  border-color: var(--mail-accent);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.25);
}

.m3-checkbox:checked {
  background-color: var(--mail-accent);
  border-color: var(--mail-accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-size: 13px 13px;
  background-position: center;
  background-repeat: no-repeat;
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.35);
}

.m3-radio {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  min-width: 20px;
  min-height: 20px;
  border-radius: 50%;
  border: 2px solid var(--mail-border);
  background-color: var(--mail-surface-container);
  cursor: pointer;
  display: inline-grid;
  place-content: center;
  position: relative;
  transition: all 180ms cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  vertical-align: middle;
  margin: 0;
  flex-shrink: 0;
}

.m3-radio:hover {
  border-color: var(--mail-accent);
  background-color: var(--mail-hover);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.12);
}

.m3-radio:focus-visible {
  border-color: var(--mail-accent);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.25);
}

.m3-radio:checked {
  border-color: var(--mail-accent);
  background-color: var(--mail-surface);
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.25);
}

.m3-radio:checked::after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--mail-accent);
  transform: scale(1);
  animation: m3RadioPop 180ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes m3RadioPop {
  0% { transform: scale(0); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.m3-switch-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.m3-switch-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--mail-text);
}

.m3-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  min-width: 44px;
  max-width: 44px;
  height: 24px;
  min-height: 24px;
  max-height: 24px;
  flex-shrink: 0;
}

.m3-switch input,
.m3-switch-input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
  pointer-events: none;
}

.m3-switch-track {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 44px;
  height: 24px;
  background-color: var(--mail-surface-container);
  border: 1px solid transparent;
  transition: all 220ms cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 9999px;
  box-sizing: border-box;
}

.m3-switch-track::before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 2.5px;
  bottom: 2.5px;
  background-color: var(--mail-text-sub);
  transition: all 220ms cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.m3-switch input:checked + .m3-switch-track {
  background-color: var(--mail-accent);
  border-color: var(--mail-accent);
  box-shadow: 0 2px 10px rgba(139, 92, 246, 0.3);
}

.m3-switch input:focus-visible + .m3-switch-track {
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.25);
}

.m3-switch input:checked + .m3-switch-track::before {
  transform: translateX(20px);
  background-color: #ffffff;
}

.m3-control-row {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}


/* ── Safe Area Insets for Mobile Notch, Dynamic Island, and Edge Protection ── */
:root {
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

.mimail-header {
  height: calc(var(--mail-header-height) + var(--safe-top));
  min-height: calc(var(--mail-header-height) + var(--safe-top));
  padding-top: var(--safe-top);
  padding-left: max(16px, var(--safe-left));
  padding-right: max(16px, var(--safe-right));
}

.mimail-bottom-nav {
  height: calc(64px + var(--safe-bottom)) !important;
  padding-bottom: var(--safe-bottom) !important;
  padding-left: max(12px, var(--safe-left)) !important;
  padding-right: max(12px, var(--safe-right)) !important;
}

.mimail-mobile-fab {
  bottom: calc(76px + var(--safe-bottom)) !important;
  right: max(20px, var(--safe-right)) !important;
}

.mimail-sidebar {
  padding-top: max(14px, var(--safe-top));
  padding-left: max(14px, var(--safe-left));
  padding-bottom: max(14px, var(--safe-bottom));
}

/* ── Dynamic Theme Selection Cards with Live Highlight ── */
/* ── Display Density Options & Mobile-First Settings System ── */
.settings-density-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1.5px solid transparent;
  background: var(--mail-surface-container);
  cursor: pointer;
  transition: all 180ms cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  box-sizing: border-box;
}

.settings-density-option:hover {
  border-color: rgba(139, 92, 246, 0.4);
  transform: translateY(-1px);
}

.settings-density-option input[type="radio"]:checked ~ div {
  color: var(--mail-text);
}

.settings-theme-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border-radius: 16px;
  border: 2px solid transparent;
  background: var(--mail-surface-container);
  cursor: pointer;
  transition: all 180ms cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  box-sizing: border-box;
}

.settings-theme-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.settings-theme-card:has(input[type="radio"]:checked),
.settings-theme-card.active {
  border-color: var(--mail-accent) !important;
  box-shadow: 0 4px 18px rgba(139, 92, 246, 0.28) !important;
}

.settings-theme-card.theme-dark {
  background: #1f1f1f !important;
  color: #ffffff !important;
}

.settings-theme-card.theme-light {
  background: #ffffff !important;
  color: #1f1f1f !important;
}

.settings-theme-card .theme-card-title {
  font-weight: 700;
  font-size: 14.5px;
}

.settings-theme-card .theme-card-desc {
  font-size: 12px;
  color: var(--mail-text-sub);
  margin: 0;
  line-height: 1.4;
}

.settings-theme-card.theme-dark .theme-card-desc {
  color: #9aa0a6 !important;
}

.settings-theme-card.theme-light .theme-card-desc {
  color: #5f6368 !important;
}


/* ── Display Density System (Comfortable vs Compact) ── */
[data-density="compact"] .mail-item {
  padding: 6px 16px !important;
  gap: 12px !important;
  border: none !important;
}

[data-density="compact"] .mail-sender-avatar {
  width: 28px !important;
  height: 28px !important;
  font-size: 11px !important;
  border-radius: 6px !important;
  border: none !important;
}

[data-density="compact"] .mail-sender-name {
  font-size: 13px !important;
}

[data-density="compact"] .mail-subject-snippet {
  font-size: 12px !important;
}

[data-density="compact"] .mail-date {
  font-size: 11px !important;
}

[data-density="compact"] .mail-star .material-symbols-outlined {
  font-size: 18px !important;
}


/* ── Material 3 In-App Top Progress Loader ── */
.mimail-top-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 10000;
  overflow: hidden;
  display: none;
}

.mimail-top-loader.active {
  display: block;
}

.mimail-top-loader-bar {
  width: 100%;
  height: 100%;
  background: var(--mail-accent-gradient);
  animation: topLoaderIndeterminate 1.2s infinite ease-in-out;
  transform-origin: left;
}

@keyframes topLoaderIndeterminate {
  0% { transform: translateX(-100%) scaleX(0.2); }
  50% { transform: translateX(0) scaleX(0.6); }
  100% { transform: translateX(100%) scaleX(0.2); }
}

/* ── Material 3 Floating Snackbar / Toast Notification Banner ── */
.mimail-toast-container {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  max-width: 420px;
  width: calc(100% - 48px);
}

.m3-toast {
  pointer-events: auto;
  background: #2b2b2b;
  color: #f5f5f5;
  border: none !important;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg), 0 8px 30px rgba(0, 0, 0, 0.45);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  animation: m3ToastSlideUp 280ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: opacity 200ms ease, transform 200ms ease;
  box-sizing: border-box;
}

[data-theme="light"] .m3-toast {
  background: #202124;
  color: #ffffff;
  border: none !important;
}

.m3-toast.hiding {
  opacity: 0;
  transform: translateY(12px) scale(0.95);
}

@keyframes m3ToastSlideUp {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.m3-toast-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}

.m3-toast-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.m3-toast-icon.success { color: #10b981; }
.m3-toast-icon.error { color: #ef4444; }
.m3-toast-icon.warning { color: #f59e0b; }
.m3-toast-icon.info { color: #8b5cf6; }

.m3-toast-message {
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.4;
  word-break: break-word;
}

.m3-toast-action-btn {
  background: transparent;
  border: none;
  color: #c4b5fd;
  font-weight: 700;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
  white-space: nowrap;
  flex-shrink: 0;
  font-family: inherit;
}

.m3-toast-action-btn:hover {
  background: rgba(139, 92, 246, 0.2);
  color: #ffffff;
}

.m3-toast-close-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: all 150ms ease;
}

.m3-toast-close-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

/* ── Material 3 Confirmation Dialog Modal ── */
.m3-dialog-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 220ms ease, visibility 220ms ease;
}

.m3-dialog-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.m3-dialog-card {
  background: var(--mail-surface);
  border: none !important;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  max-width: 440px;
  width: 100%;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transform: scale(0.92);
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
}

.m3-dialog-backdrop.active .m3-dialog-card {
  transform: scale(1);
}

.m3-dialog-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.m3-dialog-icon {
  font-size: 26px;
  color: var(--mail-accent);
}

.m3-dialog-icon.destructive {
  color: #ef4444;
}

.m3-dialog-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--mail-text);
  margin: 0;
}

.m3-dialog-body {
  font-size: 14px;
  color: var(--mail-text-sub);
  line-height: 1.5;
  margin: 0;
}

.m3-dialog-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 8px;
}

@media (max-width: 768px) {
  .mimail-toast-container {
    left: 12px;
    right: 12px;
    bottom: calc(76px + var(--safe-bottom));
    width: calc(100% - 24px);
  }
}


/* ── Zero-CLS Top Header & Icon Stability ── */
.mimail-header {
  height: var(--mail-header-height) !important;
  min-height: var(--mail-header-height) !important;
  max-height: var(--mail-header-height) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  padding: 0 20px !important;
  position: sticky !important;
  top: 0 !important;
  z-index: 100 !important;
  width: 100% !important;
  gap: 16px !important;
  box-sizing: border-box !important;
  border: none !important;
  contain: layout size style;
}

.header-left-cluster {
  display: flex !important;
  align-items: center !important;
  gap: 12px !important;
  flex-shrink: 0 !important;
  min-width: 140px !important;
  height: 40px !important;
}

.header-right-cluster {
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
  flex-shrink: 0 !important;
  min-width: 44px !important;
  height: 40px !important;
  justify-content: flex-end !important;
}

.mimail-menu-toggle {
  width: 40px !important;
  height: 40px !important;
  min-width: 40px !important;
  min-height: 40px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  flex-shrink: 0 !important;
}

.g-avatar-btn {
  width: 38px !important;
  height: 38px !important;
  min-width: 38px !important;
  min-height: 38px !important;
  border-radius: 50% !important;
  border: none !important;
  flex-shrink: 0 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  overflow: hidden !important;
}

.material-symbols-outlined {
  width: 22px !important;
  height: 22px !important;
  min-width: 22px !important;
  min-height: 22px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 22px !important;
  line-height: 1 !important;
  letter-spacing: normal !important;
  text-transform: none !important;
  overflow: hidden !important;
  vertical-align: middle !important;
  contain: layout size;
}

/* ── Material 3 Skeleton Loader Architecture ── */
.m3-skeleton {
  background: linear-gradient(90deg, #252525 0%, #323232 50%, #252525 100%);
  background-size: 200% 100%;
  animation: m3SkeletonShimmer 1.5s infinite ease-in-out;
  border-radius: var(--radius-sm);
  display: block;
}

[data-theme="light"] .m3-skeleton {
  background: linear-gradient(90deg, #e6e8eb 0%, #f3f4f6 50%, #e6e8eb 100%);
  background-size: 200% 100%;
}

@keyframes m3SkeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-circle {
  border-radius: 50% !important;
}

.skeleton-mail-list {
  display: flex;
  flex-direction: column;
  width: 100%;
  flex: 1;
}

.skeleton-mail-item {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  border: none !important;
  border-bottom: none !important;
  gap: 16px;
  width: 100%;
  box-sizing: border-box;
}

[data-density="compact"] .skeleton-mail-item {
  padding: 6px 16px;
  gap: 12px;
  border: none !important;
}

.skeleton-sidebar-wrapper {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  padding: 4px 0;
}

.skeleton-sidebar-item {
  display: flex;
  align-items: center;
  gap: 14px;
  height: 44px;
  padding: 0 16px;
  border-radius: var(--radius-full);
  box-sizing: border-box;
}

.skeleton-content-fade {
  opacity: 0;
  transition: opacity 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.skeleton-content-fade.loaded {
  opacity: 1;
}

.skeleton-placeholder-overlay {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
}

/* ── 150% Display Scaling & Low Viewport Height Desktop Optimization ── */
@media (min-width: 769px) and (max-height: 850px) {
  .settings-toolbar {
    min-height: 48px !important;
    max-height: 48px !important;
    padding: 6px 20px !important;
  }
  .settings-title {
    font-size: 1.15rem !important;
  }
  .settings-tabs-wrapper {
    min-height: 46px !important;
    max-height: 46px !important;
    padding: 4px 16px !important;
  }
  .settings-tab-btn {
    height: 32px !important;
    padding: 4px 14px !important;
    font-size: 12.5px !important;
  }
  .settings-body-scroll {
    padding: 16px 20px !important;
  }
  .settings-card {
    padding: 16px 18px !important;
    margin-bottom: 14px !important;
    border-radius: 14px !important;
  }
  .settings-card-title {
    font-size: 14.5px !important;
    margin-bottom: 3px !important;
  }
  .settings-card-subtitle {
    font-size: 12px !important;
    margin-bottom: 10px !important;
  }
  .settings-form-group {
    margin-bottom: 12px !important;
  }
  .settings-textarea {
    min-height: 100px !important;
    height: auto !important;
  }
}

/* ── Material 3 Interactive Profile Avatar Picker ── */
.m3-avatar-picker-wrapper {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.m3-avatar-picker-frame {
  position: relative;
  width: 90px;
  height: 90px;
  flex-shrink: 0;
  cursor: pointer;
  border-radius: 50%;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.m3-avatar-picker-circle {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  border: 3px solid var(--mail-accent);
  background: var(--mail-surface-container);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.m3-avatar-picker-frame:hover .m3-avatar-picker-circle {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

.m3-avatar-picker-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.m3-avatar-picker-initial {
  width: 100%;
  height: 100%;
  background: var(--mail-accent-gradient);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
}

.m3-avatar-picker-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: #ffffff;
  opacity: 0;
  transition: opacity 180ms ease;
  border-radius: 50%;
  backdrop-filter: blur(1.5px);
}

.m3-avatar-picker-frame:hover .m3-avatar-picker-overlay {
  opacity: 1;
}

.m3-avatar-picker-badge {
  position: absolute;
  bottom: 0px;
  right: 0px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--mail-accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2.5px solid var(--mail-surface);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1), background-color 150ms ease;
}

.m3-avatar-picker-frame:hover .m3-avatar-picker-badge {
  transform: scale(1.12);
  background: var(--mail-accent-hover);
}

.m3-avatar-picker-info {
  flex: 1;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.m3-avatar-picker-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  border: 1px solid var(--mail-border);
  background: var(--mail-surface-container);
  color: var(--mail-text);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  width: fit-content;
  transition: all 150ms ease;
}

.m3-avatar-picker-btn:hover {
  background: var(--mail-hover);
  border-color: var(--mail-accent);
  color: var(--mail-accent);
}

/* ── Professional Email Print Stylesheet ── */
@media print {
  /* Hide all interactive UI controls, buttons, toolbars, and bars */
  .mimail-header,
  .mimail-sidebar,
  .mimail-sidebar-backdrop,
  .mail-toolbar,
  .read-actions-bar,
  .m3-btn-accent,
  .m3-btn-outlined,
  .mimail-bottom-nav,
  .mimail-fab,
  .mimail-top-loader,
  .mimail-toast-container,
  .m3-dialog-backdrop,
  .compose-modal,
  .btn-compose,
  #pwa-install-nav-btn,
  #header-skeleton,
  #sidebar-skeleton-loader {
    display: none !important;
    visibility: hidden !important;
  }

  /* Clean up page container for paper / PDF export */
  html, body, .mimail-body, .mimail-app-container, .mimail-main {
    background: #ffffff !important;
    color: #000000 !important;
    padding: 0 !important;
    margin: 0 !important;
    overflow: visible !important;
    height: auto !important;
    min-height: auto !important;
    width: 100% !important;
    box-shadow: none !important;
    border: none !important;
  }

  .mail-sender-avatar {
    border: 1px solid #999999 !important;
    color: #000000 !important;
    background: #f1f1f1 !important;
  }

  h1, div, p, span {
    color: #000000 !important;
  }

  a {
    color: #000000 !important;
    text-decoration: underline !important;
  }
}

/* ── Safe Area Insets for Mobile Notch, Dynamic Island, and Edge Protection ── */
:root {
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

/* ── Responsive Desktop vs Mobile Display Rules (Gmail Mobile Design) ── */
.mimail-desktop-only {
  display: flex !important;
}
.mimail-mobile-only {
  display: none !important;
}

/* ── Settings & Reading View Header Switching ── */
.mimail-settings-header-cluster {
  display: none !important;
}

body.mimail-settings-view .mimail-search-form,
.mimail-app-container:has([data-folder="settings"]) ~ * .mimail-search-form {
  display: none !important;
}

body.mimail-settings-view .mimail-settings-header-cluster {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  flex: 1;
}

/* ── Reading View: Completely Hide App Global Top Header, Bottom Nav, and FAB ── */
body.mimail-read-view .mimail-header,
body.mimail-read-view .mimail-bottom-nav,
body.mimail-read-view .mimail-mobile-fab {
  display: none !important;
}

body.mimail-read-view .mimail-app-container {
  height: 100vh !important;
  max-height: 100vh !important;
  min-height: 100vh !important;
}

body.mimail-read-view .mimail-main.read-main-container {
  height: 100vh !important;
  max-height: 100vh !important;
  margin: 0 !important;
  border-radius: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  padding-bottom: 0 !important;
  position: relative !important;
  background-color: var(--mail-bg) !important;
}

@media (max-width: 768px) {
  body.mimail-read-view {
    height: 100dvh !important;
    overflow: hidden !important;
  }
  body.mimail-read-view .mimail-app-container {
    height: 100dvh !important;
    max-height: 100dvh !important;
    min-height: 100dvh !important;
  }
  body.mimail-read-view .mimail-main.read-main-container {
    height: 100dvh !important;
    max-height: 100dvh !important;
    padding-bottom: 0 !important;
  }
}

/* ── Dedicated Sticky Top Header in Read View ── */
.read-sticky-top-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: calc(56px + env(safe-area-inset-top, 0px));
  min-height: calc(56px + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  padding-left: max(12px, env(safe-area-inset-left, 0px));
  padding-right: max(12px, env(safe-area-inset-right, 0px));
  background-color: var(--mail-bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 1000;
  box-sizing: border-box;
  border-bottom: 1px solid var(--mail-border-subtle);
  flex-shrink: 0;
}

.read-top-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.read-top-header-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Scrollable Content Body */
.read-scroll-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 18px 20px;
}

/* ── Reading View Dropdown Menu & Bottom Actions Bar ── */
.read-more-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--mail-surface);
  border: 1px solid var(--mail-border);
  border-radius: 16px;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
  min-width: 190px;
  padding: 6px;
  z-index: 3000;
  display: none;
  flex-direction: column;
  gap: 2px;
  animation: popoverFadeIn 160ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.read-more-dropdown.show {
  display: flex !important;
}

.read-dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: var(--mail-text);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: background 150ms ease;
  font-family: inherit;
  box-sizing: border-box;
}

.read-dropdown-item:hover {
  background: var(--mail-hover);
}

.read-dropdown-item .material-symbols-outlined {
  font-size: 20px !important;
  color: var(--mail-text-sub);
}

/* Sticky Footer Action Bar in Opened Email */
.read-footer-action-bar {
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  padding: 12px 18px;
  padding-bottom: max(14px, env(safe-area-inset-bottom, 0px));
  background: var(--mail-surface);
  border-top: 1px solid var(--mail-border-subtle);
  display: flex;
  align-items: center;
  gap: 12px;
  box-sizing: border-box;
  z-index: 950;
  flex-shrink: 0;
}

.read-footer-pill-btn {
  flex: 1;
  height: 46px;
  border-radius: 9999px;
  background: transparent;
  border: 1px solid var(--mail-border);
  color: var(--mail-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 14.5px;
  cursor: pointer;
  transition: all 150ms ease;
  text-decoration: none;
  font-family: inherit;
  box-sizing: border-box;
}

.read-footer-pill-btn:hover {
  background: var(--mail-hover);
  border-color: var(--mail-accent);
}

.read-footer-pill-btn:active {
  transform: scale(0.98);
}

.read-footer-icon-btn {
  width: 46px;
  height: 46px;
  min-width: 46px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--mail-border);
  color: var(--mail-text-sub);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 150ms ease;
  flex-shrink: 0;
}

.read-footer-icon-btn:hover {
  background: var(--mail-hover);
  color: var(--mail-text);
}

/* ── Mobile Scroll-to-Hide Top Header & Bottom Nav (Inbox, Starred, Sent, Drafts, Outbox, Trash) ── */
.mimail-header {
  transition: transform 260ms cubic-bezier(0.2, 0, 0, 1), background-color 200ms ease !important;
}
.mimail-bottom-nav {
  transition: transform 260ms cubic-bezier(0.2, 0, 0, 1), background-color 200ms ease !important;
}
.mimail-mobile-fab {
  transition: transform 260ms cubic-bezier(0.2, 0, 0, 1), opacity 200ms ease !important;
}

@media (max-width: 768px) {
  body.mimail-bars-hidden:not(.mimail-read-view):not(.mimail-settings-view) .mimail-header {
    transform: translateY(-100%) !important;
  }
  body.mimail-bars-hidden:not(.mimail-read-view):not(.mimail-settings-view) .mimail-bottom-nav {
    transform: translateY(100%) !important;
  }
  body.mimail-bars-hidden:not(.mimail-read-view):not(.mimail-settings-view) .mimail-mobile-fab {
    transform: translateY(140px) !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }
}

/* ── Material 3 First-Launch Push Notification Prompt Banner ── */
.mimail-push-prompt-banner {
  position: fixed;
  bottom: calc(76px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  width: calc(100% - 32px);
  max-width: 520px;
  background: var(--mail-surface);
  color: var(--mail-text);
  border-radius: 20px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.22), 0 2px 8px rgba(0, 0, 0, 0.12);
  border: 1px solid var(--mail-border);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 10000;
  transition: transform 380ms cubic-bezier(0.16, 1, 0.3, 1), opacity 300ms ease;
  opacity: 0;
  pointer-events: none;
  box-sizing: border-box;
}

.mimail-push-prompt-banner.active {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.push-prompt-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--mail-active-pill);
  color: var(--mail-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.push-prompt-content {
  flex: 1;
  min-width: 0;
}

.push-prompt-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--mail-text);
  margin-bottom: 2px;
}

.push-prompt-desc {
  font-size: 12px;
  color: var(--mail-text-sub);
  line-height: 1.4;
}

.push-prompt-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.push-prompt-btn-allow {
  background: var(--mail-accent-gradient);
  color: #ffffff;
  border: none;
  padding: 8px 16px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
  transition: transform 150ms ease, filter 150ms ease;
}

.push-prompt-btn-allow:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.push-prompt-btn-dismiss {
  background: transparent;
  border: none;
  color: var(--mail-text-sub);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: background 150ms ease;
}

.push-prompt-btn-dismiss:hover {
  background: var(--mail-hover);
  color: var(--mail-text);
}

@media (max-width: 768px) {
  .mimail-desktop-only {
    display: none !important;
  }
  .mimail-mobile-only {
    display: flex !important;
  }

  .mimail-header {
    height: calc(64px + env(safe-area-inset-top, 0px)) !important;
    min-height: calc(64px + env(safe-area-inset-top, 0px)) !important;
    padding-top: calc(8px + env(safe-area-inset-top, 0px)) !important;
    padding-bottom: 8px !important;
    padding-left: max(12px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(12px, env(safe-area-inset-right, 0px)) !important;
    background-color: var(--mail-bg) !important;
    gap: 0 !important;
    border: none !important;
  }

  .mimail-app-container {
    height: calc(100dvh - 64px - env(safe-area-inset-top, 0px)) !important;
    max-height: calc(100dvh - 64px - env(safe-area-inset-top, 0px)) !important;
  }

  .mimail-sidebar {
    padding-top: max(16px, env(safe-area-inset-top, 0px)) !important;
    padding-bottom: max(20px, env(safe-area-inset-bottom, 0px)) !important;
    padding-left: max(14px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(14px, env(safe-area-inset-right, 0px)) !important;
  }

  .mimail-search-form {
    flex: 1 !important;
    max-width: 100% !important;
    margin: 0 !important;
    width: 100% !important;
  }

  .mimail-search-box {
    height: 48px !important;
    padding: 4px 6px 4px 6px !important;
    border-radius: 24px !important;
    background: var(--mail-search-bg) !important;
    box-shadow: none !important;
    gap: 8px !important;
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
    box-sizing: border-box !important;
    border: none !important;
  }

  .mimail-search-box:focus-within {
    background: var(--mail-search-bg-focus) !important;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08) !important;
    border: none !important;
  }

  .mimail-search-menu-btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 38px !important;
    height: 38px !important;
    border-radius: 50% !important;
    background: transparent !important;
    border: none !important;
    color: var(--mail-text) !important;
    cursor: pointer !important;
    flex-shrink: 0 !important;
    padding: 0 !important;
  }

  .mimail-search-input {
    font-size: 15px !important;
    flex: 1 !important;
    min-width: 0 !important;
    padding: 0 4px !important;
  }

  .g-avatar-btn-mobile {
    width: 34px !important;
    height: 34px !important;
    min-width: 34px !important;
    min-height: 34px !important;
    border-radius: 50% !important;
    border: none !important;
    flex-shrink: 0 !important;
  }

  .sidebar-brand-header {
    display: flex !important;
    align-items: center !important;
    padding: 8px 12px 14px 12px !important;
    border: none !important;
    border-bottom: none !important;
    margin-bottom: 8px !important;
  }

  .mimail-bottom-nav {
    height: calc(64px + env(safe-area-inset-bottom, 0px)) !important;
    padding-bottom: env(safe-area-inset-bottom, 0px) !important;
    padding-left: max(12px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(12px, env(safe-area-inset-right, 0px)) !important;
  }

  .mimail-mobile-fab {
    bottom: calc(76px + env(safe-area-inset-bottom, 0px)) !important;
    right: max(20px, env(safe-area-inset-right, 0px)) !important;
  }

  .mimail-main,
  .mail-list-container,
  .settings-body-scroll,
  .read-scroll-body {
    padding-bottom: calc(76px + env(safe-area-inset-bottom, 0px)) !important;
  }
}

@media (min-width: 769px) {
  .sidebar-brand-header {
    display: none !important;
  }
}

/* ── Guaranteed Exclusion of Global Top Header & Bottom Nav on Mobile Read View ── */
body.mimail-read-view .mimail-header,
body.mimail-read-view .mimail-bottom-nav,
body.mimail-read-view .mimail-mobile-fab,
body.mimail-read-view header.mimail-header,
body.mimail-read-view nav.mimail-bottom-nav,
body.mimail-read-view button.mimail-mobile-fab {
  display: none !important;
  visibility: hidden !important;
  height: 0 !important;
  min-height: 0 !important;
  max-height: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
  transform: translateY(-9999px) !important;
}

body.mimail-read-view .mimail-app-container {
  height: 100vh !important;
  height: 100dvh !important;
  max-height: 100vh !important;
  max-height: 100dvh !important;
  min-height: 100vh !important;
  min-height: 100dvh !important;
  padding: 0 !important;
  margin: 0 !important;
}

body.mimail-read-view .mimail-main,
body.mimail-read-view .mimail-main.read-main-container {
  height: 100vh !important;
  height: 100dvh !important;
  max-height: 100vh !important;
  max-height: 100dvh !important;
  margin: 0 !important;
  border-radius: 0 !important;
  padding: 0 !important;
  padding-bottom: 0 !important;
  display: flex !important;
  border-radius: 12px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
  transition: transform 150ms ease, filter 150ms ease;
}

.push-prompt-btn-allow:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.push-prompt-btn-dismiss {
  background: transparent;
  border: none;
  color: var(--mail-text-sub);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: background 150ms ease;
}

.push-prompt-btn-dismiss:hover {
  background: var(--mail-hover);
  color: var(--mail-text);
}

@media (max-width: 768px) {
  .mimail-desktop-only {
    display: none !important;
  }
  .mimail-mobile-only {
    display: flex !important;
  }

  .mimail-header {
    height: calc(64px + env(safe-area-inset-top, 0px)) !important;
    min-height: calc(64px + env(safe-area-inset-top, 0px)) !important;
    padding-top: calc(8px + env(safe-area-inset-top, 0px)) !important;
    padding-bottom: 8px !important;
    padding-left: max(12px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(12px, env(safe-area-inset-right, 0px)) !important;
    background-color: var(--mail-bg) !important;
    gap: 0 !important;
    border: none !important;
  }

  .mimail-app-container {
    height: calc(100dvh - 64px - env(safe-area-inset-top, 0px)) !important;
    max-height: calc(100dvh - 64px - env(safe-area-inset-top, 0px)) !important;
  }

  .mimail-sidebar {
    padding-top: max(16px, env(safe-area-inset-top, 0px)) !important;
    padding-bottom: max(20px, env(safe-area-inset-bottom, 0px)) !important;
    padding-left: max(14px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(14px, env(safe-area-inset-right, 0px)) !important;
  }

  .mimail-search-form {
    flex: 1 !important;
    max-width: 100% !important;
    margin: 0 !important;
    width: 100% !important;
  }

  .mimail-search-box {
    height: 48px !important;
    padding: 4px 6px 4px 6px !important;
    border-radius: 24px !important;
    background: var(--mail-search-bg) !important;
    box-shadow: none !important;
    gap: 8px !important;
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
    box-sizing: border-box !important;
    border: none !important;
  }

  .mimail-search-box:focus-within {
    background: var(--mail-search-bg-focus) !important;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08) !important;
    border: none !important;
  }

  .mimail-search-menu-btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 38px !important;
    height: 38px !important;
    border-radius: 50% !important;
    background: transparent !important;
    border: none !important;
    color: var(--mail-text) !important;
    cursor: pointer !important;
    flex-shrink: 0 !important;
    padding: 0 !important;
  }

  .mimail-search-input {
    font-size: 15px !important;
    flex: 1 !important;
    min-width: 0 !important;
    padding: 0 4px !important;
  }

  .g-avatar-btn-mobile {
    width: 34px !important;
    height: 34px !important;
    min-width: 34px !important;
    min-height: 34px !important;
    border-radius: 50% !important;
    border: none !important;
    flex-shrink: 0 !important;
  }

  .sidebar-brand-header {
    display: flex !important;
    align-items: center !important;
    padding: 8px 12px 14px 12px !important;
    border: none !important;
    border-bottom: none !important;
    margin-bottom: 8px !important;
  }

  .mimail-bottom-nav {
    height: calc(64px + env(safe-area-inset-bottom, 0px)) !important;
    padding-bottom: env(safe-area-inset-bottom, 0px) !important;
    padding-left: max(12px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(12px, env(safe-area-inset-right, 0px)) !important;
  }

  .mimail-mobile-fab {
    bottom: calc(76px + env(safe-area-inset-bottom, 0px)) !important;
    right: max(20px, env(safe-area-inset-right, 0px)) !important;
  }

  .mimail-main,
  .mail-list-container,
  .settings-body-scroll,
  .read-scroll-body {
    padding-bottom: calc(76px + env(safe-area-inset-bottom, 0px)) !important;
  }
}

@media (min-width: 769px) {
  .sidebar-brand-header {
    display: none !important;
  }
}

/* ── Guaranteed Exclusion of Global Top Header & Bottom Nav on Mobile Read View ── */
body.mimail-read-view .mimail-header,
body.mimail-read-view .mimail-bottom-nav,
body.mimail-read-view .mimail-mobile-fab,
body.mimail-read-view header.mimail-header,
body.mimail-read-view nav.mimail-bottom-nav,
body.mimail-read-view button.mimail-mobile-fab {
  display: none !important;
  visibility: hidden !important;
  height: 0 !important;
  min-height: 0 !important;
  max-height: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
  transform: translateY(-9999px) !important;
}

body.mimail-read-view .mimail-app-container {
  height: 100vh !important;
  height: 100dvh !important;
  max-height: 100vh !important;
  max-height: 100dvh !important;
  min-height: 100vh !important;
  min-height: 100dvh !important;
  padding: 0 !important;
  margin: 0 !important;
}

body.mimail-read-view .mimail-main,
body.mimail-read-view .mimail-main.read-main-container {
  height: 100vh !important;
  height: 100dvh !important;
  max-height: 100vh !important;
  max-height: 100dvh !important;
  margin: 0 !important;
  border-radius: 0 !important;
  padding: 0 !important;
  padding-bottom: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  background-color: var(--mail-bg) !important;
  overflow: hidden !important;
}

body.mimail-read-view .read-scroll-body {
  padding-bottom: 96px !important;
}

/* ── Rich HTML Email Content & Media Rendering ── */
.read-email-body-content {
  color: var(--mail-text);
  line-height: 1.75;
  font-size: 15px;
  word-break: break-word;
  overflow-wrap: break-word;
}

.read-email-body-content img,
.email-body-img {
  max-width: 100% !important;
  height: auto !important;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.read-email-body-content table {
  max-width: 100% !important;
  border-collapse: collapse;
}

.table-responsive-wrapper {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 14px 0;
  border-radius: 8px;
}

.read-email-body-content a,
.email-body-link {
  color: var(--mail-accent) !important;
  text-decoration: underline !important;
  font-weight: 600 !important;
  word-break: break-all;
  transition: opacity 150ms ease;
}

.read-email-body-content a:hover,
.email-body-link:hover {
  opacity: 0.85;
}

/* ── Dedicated Gmail-Style Attachments Section & Cards ── */
.read-attachments-section {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--mail-border-subtle);
}

.read-attachments-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--mail-text-sub);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.read-attachments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

@media (max-width: 600px) {
  .read-attachments-grid {
    grid-template-columns: 1fr;
  }
}

.read-attachment-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--mail-surface);
  border: 1px solid var(--mail-border);
  border-radius: 12px;
  transition: all 180ms ease;
}

.read-attachment-card:hover {
  background: var(--mail-hover);
  border-color: var(--mail-accent);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

.attachment-preview-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 20px;
}

.attachment-preview-icon.type-pdf {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
}

.attachment-preview-icon.type-doc {
  background: rgba(59, 130, 246, 0.12);
  color: #3b82f6;
}

.attachment-preview-icon.type-image {
  background: rgba(168, 85, 247, 0.12);
  color: #a855f7;
}

.attachment-preview-icon.type-archive {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
}

.attachment-preview-icon.type-media {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
}

.attachment-info {
  flex: 1;
  min-width: 0;
}

.attachment-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--mail-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.attachment-size {
  font-size: 11.5px;
  color: var(--mail-text-sub);
  margin-top: 2px;
}

.attachment-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.attachment-action-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--mail-text-sub);
  text-decoration: none !important;
  transition: all 150ms ease;
  background: transparent;
}

.attachment-action-btn:hover {
  background: var(--mail-active);
  color: var(--mail-accent);
}

.attachment-action-btn .material-symbols-outlined {
  font-size: 18px !important;
}


/* ── miMail Compose Modal & Standalone Responsive Compose Sheet ── */
.mimail-compose-modal {
  display: none;
  position: fixed;
  bottom: 0;
  right: 24px;
  width: 580px;
  max-width: calc(100vw - 32px);
  height: 540px;
  max-height: calc(100vh - 100px);
  max-height: calc(100dvh - 100px);
  background: var(--mail-surface);
  border-radius: 16px 16px 0 0;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.28);
  border: 1px solid var(--mail-border);
  border-bottom: none;
  z-index: 9999;
  flex-direction: column;
  overflow: hidden;
  animation: mimailComposeSlideUp 220ms cubic-bezier(0, 0, 0.2, 1);
}

.mimail-compose-modal.active {
  display: flex !important;
}

@keyframes mimailComposeSlideUp {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.compose-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: var(--mail-surface-container);
  border-bottom: 1px solid var(--mail-border-subtle);
  border-radius: 16px 16px 0 0;
  min-height: 52px;
  box-sizing: border-box;
  flex-shrink: 0;
}

.compose-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.compose-header-title {
  font-weight: 700;
  font-size: 14.5px;
  color: var(--mail-text);
}

.compose-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.compose-close-btn {
  background: transparent;
  border: none;
  color: var(--mail-text-sub);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  transition: all 150ms ease;
  padding: 0;
}

.compose-close-btn:hover {
  background: var(--mail-hover);
  color: var(--mail-text);
}

.compose-cancel-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--mail-text-sub);
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none !important;
  padding: 6px 12px;
  border-radius: 20px;
  transition: all 150ms ease;
  background: var(--mail-hover);
}

.compose-cancel-btn:hover {
  background: var(--mail-active);
  color: var(--mail-accent);
}

.compose-field-row {
  display: flex;
  align-items: center;
  padding: 10px 18px;
  border-bottom: 1px solid var(--mail-border-subtle);
  gap: 12px;
  background: var(--mail-surface);
  flex-shrink: 0;
}

.compose-field-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--mail-text-sub);
  min-width: 36px;
}

.compose-field-input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--mail-text);
  font-family: inherit;
  width: 100%;
}

.compose-field-input::placeholder {
  color: var(--mail-text-sub);
  opacity: 0.7;
}

.compose-body-textarea {
  flex: 1;
  width: 100%;
  border: none;
  background: transparent;
  outline: none;
  resize: none;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--mail-text);
  font-family: inherit;
  min-height: 160px;
  box-sizing: border-box;
}

.compose-body-textarea::placeholder {
  color: var(--mail-text-sub);
  opacity: 0.7;
}

.compose-bottom-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  border-top: 1px solid var(--mail-border-subtle);
  background: var(--mail-surface);
  flex-shrink: 0;
  gap: 10px;
  box-sizing: border-box;
}

.compose-bottom-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.compose-bottom-right {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--mail-text-sub);
  flex-shrink: 0;
}

.btn-send-mail {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--mail-accent);
  color: #ffffff;
  border: none;
  border-radius: 20px;
  padding: 7px 18px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.25);
  transition: all 160ms cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-send-mail:hover {
  background: var(--mail-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.35);
}

.btn-save-draft {
  padding: 6px 14px;
  font-size: 12.5px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}

.compose-tool-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
  color: var(--mail-text-sub);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  transition: all 150ms ease;
  flex-shrink: 0;
}

.compose-tool-btn:hover {
  background: var(--mail-hover);
  color: var(--mail-accent);
}

.compose-tool-btn .material-symbols-outlined,
.compose-tool-icon {
  font-size: 18px !important;
}

.compose-tool-btn.compose-delete-btn:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.12);
}

/* ── Mobile iPhone Safe Area Insets & Responsive Compose Sheet ── */
@media (max-width: 768px) {
  .mimail-compose-modal {
    position: fixed !important;
    inset: 0 !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    width: 100% !important;
    height: 100vh !important;
    height: 100dvh !important;
    max-height: 100vh !important;
    max-height: 100dvh !important;
    border-radius: 0 !important;
    border: none !important;
    z-index: 99999 !important;
    display: none;
    flex-direction: column !important;
    background: var(--mail-bg) !important;
  }

  .mimail-compose-modal.active {
    display: flex !important;
  }

  .compose-main-view {
    height: 100vh !important;
    height: 100dvh !important;
    max-height: 100vh !important;
    max-height: 100dvh !important;
    min-height: 100vh !important;
    min-height: 100dvh !important;
    overflow: hidden !important;
  }

  .compose-header-bar {
    padding-top: calc(14px + env(safe-area-inset-top, 0px)) !important;
    padding-left: max(16px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(16px, env(safe-area-inset-right, 0px)) !important;
    padding-bottom: 12px !important;
    min-height: calc(56px + env(safe-area-inset-top, 0px)) !important;
    border-radius: 0 !important;
    background: var(--mail-surface) !important;
    border-bottom: 1px solid var(--mail-border) !important;
    flex-shrink: 0 !important;
  }

  .compose-close-btn {
    width: 36px !important;
    height: 36px !important;
    background: var(--mail-hover) !important;
  }

  .compose-close-btn .material-symbols-outlined {
    font-size: 20px !important;
  }

  .compose-bottom-toolbar {
    padding-top: 10px !important;
    padding-bottom: calc(14px + env(safe-area-inset-bottom, 0px)) !important;
    padding-left: max(14px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(14px, env(safe-area-inset-right, 0px)) !important;
    min-height: calc(60px + env(safe-area-inset-bottom, 0px)) !important;
    background: var(--mail-surface) !important;
    border-top: 1px solid var(--mail-border) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-wrap: nowrap !important;
    gap: 8px !important;
    flex-shrink: 0 !important;
  }

  .compose-bottom-left {
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
    flex-shrink: 0 !important;
  }

  .compose-bottom-right {
    display: flex !important;
    align-items: center !important;
    gap: 2px !important;
    flex-shrink: 0 !important;
    overflow-x: auto !important;
    scrollbar-width: none !important;
  }

  .compose-bottom-right::-webkit-scrollbar {
    display: none !important;
  }

  .btn-send-mail {
    padding: 7px 15px !important;
    font-size: 13px !important;
  }

  .btn-save-draft {
    padding: 6px 10px !important;
    font-size: 12px !important;
  }

  .compose-tool-btn {
    width: 32px !important;
    height: 32px !important;
    padding: 4px !important;
  }
}

@media (max-width: 420px) {
  .btn-save-draft .draft-btn-label {
    display: none !important;
  }

  .btn-save-draft {
    padding: 7px !important;
    border-radius: 50% !important;
    width: 34px !important;
    height: 34px !important;
    justify-content: center !important;
  }

  .btn-send-mail {
    padding: 7px 12px !important;
  }

  .compose-bottom-toolbar {
    gap: 4px !important;
    padding-left: max(10px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(10px, env(safe-area-inset-right, 0px)) !important;
  }

  .compose-tool-btn {
    width: 30px !important;
    height: 30px !important;
  }
}


/* ── GUARANTEED ZERO-GAP FULL-WIDTH MOBILE COMPOSE MODAL ── */
@media screen and (max-width: 768px) {
  .mimail-compose-modal,
  #mimail-compose-modal,
  div.mimail-compose-modal {
    position: fixed !important;
    inset: 0 !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    width: 100% !important;
    max-width: 100vw !important;
    max-width: 100% !important;
    min-width: 100vw !important;
    min-width: 100% !important;
    height: 100vh !important;
    height: 100dvh !important;
    max-height: 100vh !important;
    max-height: 100dvh !important;
    margin: 0 !important;
    padding: 0 !important;
    border-radius: 0 !important;
    border: none !important;
    box-shadow: none !important;
    z-index: 999999 !important;
    display: none;
    flex-direction: column !important;
    background: var(--mail-bg) !important;
    box-sizing: border-box !important;
    transform: none !important;
  }

  .mimail-compose-modal.active,
  #mimail-compose-modal.active,
  {
    display: flex !important;
  }

  .compose-header-bar {
    width: 100% !important;
    box-sizing: border-box !important;
    padding-top: calc(14px + env(safe-area-inset-top, 0px)) !important;
    padding-left: max(16px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(16px, env(safe-area-inset-right, 0px)) !important;
    min-height: calc(56px + env(safe-area-inset-top, 0px)) !important;
  }

  .compose-field-row {
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: max(16px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(16px, env(safe-area-inset-right, 0px)) !important;
  }

  .compose-bottom-toolbar {
    width: 100% !important;
    box-sizing: border-box !important;
    padding-bottom: calc(14px + env(safe-area-inset-bottom, 0px)) !important;
    padding-left: max(14px, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(14px, env(safe-area-inset-right, 0px)) !important;
  }
}

/* ── miMail Rich Text WYSIWYG Formatting Toolbar & Editor ── */
.compose-formatting-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background: var(--mail-surface-container);
  border-bottom: 1px solid var(--mail-border-subtle);
  overflow-x: auto;
  scrollbar-width: thin;
  flex-shrink: 0;
  box-sizing: border-box;
}

.compose-formatting-bar::-webkit-scrollbar {
  height: 4px;
}

.compose-formatting-bar::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
}

.format-group {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.format-divider {
  width: 1px;
  height: 18px;
  background: var(--mail-border);
  margin: 0 4px;
  flex-shrink: 0;
}

.format-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--mail-text-sub);
  transition: all 140ms ease;
  padding: 0;
  flex-shrink: 0;
}

.format-btn:hover {
  background: var(--mail-hover);
  color: var(--mail-text);
}

.format-btn.active {
  background: var(--mail-active-pill);
  color: var(--mail-active-pill-text);
  font-weight: 700;
}

.format-btn .material-symbols-outlined {
  font-size: 18px !important;
}

.format-select {
  height: 28px;
  padding: 0 8px;
  font-size: 12.5px;
  font-family: inherit;
  background: var(--mail-surface);
  color: var(--mail-text);
  border: 1px solid var(--mail-border);
  border-radius: 6px;
  outline: none;
  cursor: pointer;
}

.format-color-label {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  color: var(--mail-text-sub);
  transition: all 140ms ease;
}

.format-color-label:hover {
  background: var(--mail-hover);
  color: var(--mail-text);
}

.format-color-label .material-symbols-outlined {
  font-size: 18px !important;
}

.format-color-picker {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* ── Rich ContentEditable Container ── */
.compose-body-rich {
  flex: 1;
  width: 100%;
  border: none;
  outline: none;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--mail-text);
  font-family: inherit;
  min-height: 180px;
  overflow-y: auto;
  box-sizing: border-box;
  word-break: break-word;
  padding: 2px;
}

.compose-body-rich:empty:before {
  content: attr(data-placeholder);
  color: var(--mail-text-sub);
  opacity: 0.65;
  pointer-events: none;
  display: block;
}

.compose-body-rich b,
.compose-body-rich strong {
  font-weight: 700;
}

.compose-body-rich i,
.compose-body-rich em {
  font-style: italic;
}

.compose-body-rich u {
  text-decoration: underline;
}

.compose-body-rich s,
.compose-body-rich strike {
  text-decoration: line-through;
}

.compose-body-rich h1 {
  font-size: 22px;
  font-weight: 800;
  margin: 12px 0 6px 0;
  color: var(--mail-text);
}

.compose-body-rich h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 10px 0 5px 0;
  color: var(--mail-text);
}

.compose-body-rich h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 8px 0 4px 0;
  color: var(--mail-text);
}

.compose-body-rich ul {
  list-style-type: disc;
  padding-left: 24px;
  margin: 8px 0;
}

.compose-body-rich ol {
  list-style-type: decimal;
  padding-left: 24px;
  margin: 8px 0;
}

.compose-body-rich li {
  margin-bottom: 4px;
}

.compose-body-rich blockquote {
  border-left: 3px solid var(--mail-accent);
  padding: 6px 14px;
  margin: 8px 0;
  color: var(--mail-text-sub);
  background: var(--mail-hover);
  border-radius: 0 8px 8px 0;
}

.compose-body-rich a {
  color: var(--mail-accent);
  text-decoration: underline;
}

.compose-body-rich table {
  border-collapse: collapse;
  width: 100%;
  margin: 10px 0;
}

.compose-body-rich table,
.compose-body-rich th,
.compose-body-rich td {
  border: 1px solid var(--mail-border);
  padding: 6px 10px;
}

.compose-body-rich th {
  background: var(--mail-surface-container);
  font-weight: 700;
}

.compose-tool-btn.active {
  background: var(--mail-active-pill) !important;
  color: var(--mail-accent) !important;
}

/* ── Gmail-Style Collapsible Bottom Formatting Toolbar ── */
.compose-formatting-bar {
  display: none;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  background: var(--mail-surface-container);
  border-top: 1px solid var(--mail-border-subtle);
  border-bottom: 1px solid var(--mail-border-subtle);
  overflow-x: auto;
  scrollbar-width: thin;
  flex-shrink: 0;
  box-sizing: border-box;
  animation: formatBarSlideUp 180ms cubic-bezier(0, 0, 0.2, 1);
}

.compose-formatting-bar.show {
  display: flex !important;
}

@keyframes formatBarSlideUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.compose-tool-btn.active,
.compose-tool-btn.active .material-symbols-outlined {
  background: var(--mail-active-pill) !important;
  color: var(--mail-accent) !important;
  border-radius: 50%;
}

/* ── Compose File Attachment Chips ── */
.compose-attachments-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 20px;
  background: var(--mail-surface-container);
  border-top: 1px solid var(--mail-border-subtle);
  max-height: 120px;
  overflow-y: auto;
  box-sizing: border-box;
}

.compose-attachments-preview:empty {
  display: none !important;
}

.compose-attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--mail-surface);
  border: 1px solid var(--mail-border);
  border-radius: 20px;
  font-size: 12.5px;
  color: var(--mail-text);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  animation: chipFadeIn 160ms ease;
  max-width: 240px;
}

@keyframes chipFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.compose-attachment-chip .material-symbols-outlined {
  font-size: 17px !important;
  color: var(--mail-accent);
}

.chip-file-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
}

.chip-file-size {
  color: var(--mail-text-sub);
  font-size: 11px;
  margin-left: 2px;
}

.chip-remove-btn {
  background: transparent;
  border: none;
  color: var(--mail-text-sub);
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  transition: all 120ms ease;
}

.chip-remove-btn:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

.chip-remove-btn .material-symbols-outlined {
  font-size: 14px !important;
  color: inherit !important;
}

/* ── Desktop Drag & Drop Attachment Zone ── */
.compose-drag-over {
  position: relative;
}

.compose-drag-over::after {
  content: "📎 Drop files here to attach";
  position: absolute;
  inset: 8px;
  background: rgba(124, 58, 237, 0.14);
  border: 2px dashed var(--mail-accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: var(--mail-accent);
  z-index: 100;
  backdrop-filter: blur(2px);
  pointer-events: none;
  animation: dragZonePulse 1s infinite alternate;
}

@keyframes dragZonePulse {
  from { opacity: 0.85; }
  to { opacity: 1; }
}

/* ── Gmail-Grade Attachment Progress & Chip Styles ── */
.compose-attachment-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--mail-surface);
  border: 1px solid var(--mail-border);
  border-radius: 20px;
  font-size: 12.5px;
  color: var(--mail-text);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  animation: chipFadeIn 160ms ease;
  max-width: 280px;
  overflow: hidden;
}

.compose-attachment-chip.uploading {
  border-color: var(--mail-accent);
  background: var(--mail-surface-container);
}

.compose-attachment-chip.upload-complete {
  border-color: rgba(34, 197, 94, 0.4);
}

.compose-attachment-chip.upload-error {
  border-color: rgba(239, 68, 68, 0.5);
  background: rgba(239, 68, 68, 0.08);
}

.chip-progress-track {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(139, 92, 246, 0.2);
  overflow: hidden;
}

.chip-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--mail-accent);
  transition: width 120ms ease;
}

.chip-progress-bar.complete {
  background: #22c55e;
}

.chip-progress-bar.error {
  background: #ef4444;
}

.chip-upload-percent {
  font-size: 11px;
  font-weight: 700;
  color: var(--mail-accent);
  margin-left: 2px;
}

.compose-attachment-chip.upload-complete .chip-upload-percent {
  display: none;
}

.chip-status-icon {
  font-size: 16px !important;
  color: #22c55e !important;
  margin-left: 2px;
}

/* ── PWA Navigation Controls (Pinterest-Style Back & Refresh) ── */
.mimail-pwa-nav-controls {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 6px;
}

.pwa-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--mail-text-sub);
  cursor: pointer;
  transition: all 150ms ease;
  flex-shrink: 0;
  outline: none;
}

.pwa-nav-btn:hover {
  background: var(--mail-hover);
  color: var(--mail-text);
  transform: scale(1.05);
}

.pwa-nav-btn:active {
  transform: scale(0.95);
}

.pwa-nav-btn .material-symbols-outlined {
  font-size: 20px;
}

.pwa-nav-btn.spinning .material-symbols-outlined {
  animation: pwaSpin 800ms linear infinite;
}

@keyframes pwaSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ── Theme-Adaptive Toast Styles (No Hardcoded Dark Color in Light Theme) ── */
.mimail-toast-container {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 999999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  max-width: 440px;
  width: calc(100% - 48px);
}

.m3-toast {
  pointer-events: auto;
  background: var(--mail-surface-container, #252525);
  color: var(--mail-text, #f2f2f2);
  border: 1px solid var(--mail-border, rgba(255, 255, 255, 0.12)) !important;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35), 0 4px 12px rgba(0, 0, 0, 0.2);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  animation: m3ToastSlideUp 280ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: opacity 200ms ease, transform 200ms ease;
  box-sizing: border-box;
}

[data-theme="light"] .m3-toast {
  background: var(--mail-surface, #ffffff);
  color: var(--mail-text, #1f1f1f);
  border: 1px solid var(--mail-border, rgba(0, 0, 0, 0.12)) !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
}

.m3-toast-action-btn {
  background: transparent;
  border: none;
  color: var(--mail-accent);
  font-weight: 700;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
  white-space: nowrap;
  flex-shrink: 0;
  font-family: inherit;
}

.m3-toast-action-btn:hover {
  background: var(--mail-hover);
  color: var(--mail-accent-hover);
}

.m3-toast-close-btn {
  background: transparent;
  border: none;
  color: var(--mail-text-sub);
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: all 150ms ease;
}

.m3-toast-close-btn:hover {
  color: var(--mail-text);
  background: var(--mail-hover);
}