/* ==========================================================================
   GPg Webmail - Roundcube-Inspired Modern Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Theme: Dark (Default) */
  --bg-app: #0f172a;
  --bg-sidebar: #1e293b;
  --bg-panel: #1e293b;
  --bg-panel-light: #334155;
  --bg-hover: #334155;
  --bg-selected: #2563eb1f;
  --border-color: #334155;
  --border-focus: #3b82f6;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-primary: #3b82f6;
  --accent-primary-hover: #2563eb;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-spam: #ec4899;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.2);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme overrides */
body.light-theme {
  --bg-app: #f1f5f9;
  --bg-sidebar: #ffffff;
  --bg-panel: #ffffff;
  --bg-panel-light: #f8fafc;
  --bg-hover: #e2e8f0;
  --bg-selected: #eff6ff;
  --border-color: #e2e8f0;
  --border-focus: #2563eb;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-dim: #94a3b8;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-app);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--text-dim) transparent;
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

*::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--text-dim) 70%, transparent);
  border: 3px solid transparent;
  border-radius: var(--radius-full);
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--text-muted) 85%, transparent);
  border: 3px solid transparent;
  background-clip: padding-box;
}

/* ==========================================================================
   Login View (Single Screen - Email & Password Only)
   ========================================================================== */
.login-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(circle at top right, #1e1b4b, var(--bg-app));
  padding: 1.5rem;
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6, #ec4899);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.login-brand svg {
  width: 32px;
  height: 32px;
  color: var(--accent-primary);
}

.login-brand h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.input-with-icon {
  position: relative;
}

.input-with-icon svg {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-dim);
  transition: color var(--transition-fast);
}

.form-input {
  width: 100%;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.domain-autodetect-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  font-size: 0.825rem;
  color: var(--accent-primary);
  margin-bottom: 1.25rem;
}

.btn-primary {
  width: 100%;
  background: var(--accent-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-primary:hover {
  background: var(--accent-primary-hover);
}

.btn-primary:active {
  transform: scale(0.98);
}

/* ==========================================================================
   Main App Layout - 3 Pane Webmail View
   ========================================================================== */
.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* Sidebar Column */
.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  user-select: none;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
}

.sidebar-brand svg {
  color: var(--accent-primary);
}

.btn-compose {
  margin: 1rem 1.25rem;
  background: linear-gradient(135deg, var(--accent-primary), #6366f1);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

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

.folder-nav {
  flex: 1;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 0.5rem 0.75rem;
}

.nav-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.75rem 0.5rem 0.25rem;
  letter-spacing: 0.05em;
}

.folder-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  margin-bottom: 2px;
  transition: all var(--transition-fast);
}

.folder-item:hover {
  background: var(--bg-hover);
  color: var(--text-main);
}

.folder-item.active {
  background: var(--bg-selected);
  color: var(--accent-primary);
  font-weight: 600;
}

.folder-left {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
}

.folder-left svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.folder-left span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.folder-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex: 0 0 auto;
}

.folder-empty-btn {
  position: relative;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.folder-item:hover .folder-empty-btn,
.folder-item.active .folder-empty-btn,
.folder-empty-btn:focus-visible {
  opacity: 1;
}

.folder-empty-btn:hover {
  color: var(--accent-danger);
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.32);
}

.folder-empty-btn svg {
  width: 15px;
  height: 15px;
}

.folder-empty-btn[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 7px);
  transform: translateX(-50%) translateY(4px);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  background: #020617;
  color: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.32rem 0.5rem;
  font-size: 0.72rem;
  box-shadow: var(--shadow-md);
  z-index: 30;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.folder-empty-btn:hover::after,
.folder-empty-btn:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.unread-badge {
  background: var(--accent-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  overflow: hidden;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.user-details {
  overflow: hidden;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.user-email {
  font-size: 0.75rem;
  color: var(--text-dim);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-main);
}

/* Mail List Column */
.mail-list-column {
  width: 380px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.list-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.list-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.list-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.list-controls {
  display: flex;
  gap: 0.45rem;
  align-items: center;
}

.compact-select {
  height: 32px;
  max-width: 122px;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  padding: 0 0.55rem;
  font-size: 0.75rem;
  outline: none;
}

.compact-select:focus {
  border-color: var(--border-focus);
}

.search-box {
  position: relative;
  margin-bottom: 0.75rem;
}

.search-box svg {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-dim);
}

.search-input {
  width: 100%;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem 0.5rem 2.25rem;
  color: var(--text-main);
  font-size: 0.85rem;
  outline: none;
}

.search-input:focus {
  border-color: var(--border-focus);
}

.filter-bar {
  display: flex;
  gap: 0.4rem;
}

.filter-chip {
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-chip.active, .filter-chip:hover {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

.mail-items-container {
  flex: 1;
  overflow-y: auto;
}

.mail-item {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background var(--transition-fast);
  position: relative;
}

body[data-mail-density="compact"] .mail-item {
  padding: 0.62rem 1rem;
}

body[data-mail-density="compact"] .mail-snippet,
body[data-mail-density="compact"] .mail-item-tags {
  display: none;
}

body[data-mail-density="comfortable"] .mail-item {
  padding: 1.25rem 1.35rem;
}

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

.mail-item.selected {
  background: var(--bg-selected);
  border-left: 3px solid var(--accent-primary);
}

.mail-item.multi-selected {
  background: color-mix(in srgb, var(--bg-selected) 75%, var(--accent-primary) 12%);
}

.mail-item[draggable="true"] {
  user-select: none;
}

.mail-item.unread {
  font-weight: 600;
}

.mail-item.unread .mail-subject {
  color: var(--text-main);
}

.mail-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.mail-sender {
  font-size: 0.9rem;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}

.mail-date {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 400;
}

.mail-subject {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mail-snippet {
  font-size: 0.8rem;
  color: var(--text-dim);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-weight: 400;
  line-height: 1.4;
}

.mail-item-tags {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.pinned-badge {
  --label-color: var(--accent-warning);
}

.snooze-badge {
  --label-color: #38bdf8;
}

.folder-source-badge {
  --label-color: var(--text-dim);
}

.mail-hover-actions {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.mail-item:hover .mail-hover-actions,
.mail-item:focus-within .mail-hover-actions {
  opacity: 1;
}

.mail-hover-btn {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-app);
  color: var(--text-muted);
  cursor: pointer;
}

.mail-hover-btn svg {
  width: 14px;
  height: 14px;
}

.mail-hover-btn:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.mail-hover-btn.danger:hover {
  color: var(--accent-danger);
  border-color: rgba(239, 68, 68, 0.45);
}

.inline-mail-action {
  border: 1px solid var(--border-color);
  background: var(--bg-app);
  color: var(--accent-primary);
  border-radius: var(--radius-full);
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  cursor: pointer;
}

.inline-mail-action:hover {
  border-color: var(--accent-primary);
  background: var(--bg-hover);
}

.folder-item.drag-over {
  outline: 1px solid var(--accent-primary);
  background: var(--bg-selected);
}

.spam-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.attachment-badge {
  font-size: 0.7rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Mail Reading Pane Column */
.mail-reading-pane {
  flex: 1;
  background: var(--bg-panel-light);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pane-empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  gap: 1rem;
}

.pane-empty-state svg {
  width: 64px;
  height: 64px;
  opacity: 0.4;
}

.reading-header {
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-panel);
  overflow: visible;
}

.action-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.55rem;
}

.tool-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-tool {
  position: relative;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.btn-tool.icon-only {
  width: 42px;
  height: 42px;
  padding: 0;
  justify-content: center;
  flex: 0 0 42px;
}

.btn-tool.icon-only svg {
  width: 20px;
  height: 20px;
}

.btn-tool[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  top: calc(100% + 8px);
  transform: translateX(-50%) translateY(-4px);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  background: #020617;
  color: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.55rem;
  font-size: 0.76rem;
  box-shadow: var(--shadow-md);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: 20;
}

.btn-tool[data-tooltip]:hover::after,
.btn-tool[data-tooltip]:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.btn-tool:hover {
  background: var(--bg-hover);
  color: var(--text-main);
}

.btn-tool.is-active,
.icon-btn.is-active {
  color: var(--accent-warning);
  border-color: rgba(245, 158, 11, 0.45);
  background: rgba(245, 158, 11, 0.1);
}

.btn-tool.btn-spam-action {
  color: var(--accent-spam);
  border-color: rgba(236, 72, 153, 0.3);
  background: rgba(236, 72, 153, 0.1);
}

.btn-tool.btn-spam-action:hover {
  background: var(--accent-spam);
  color: white;
}

.btn-tool.danger-action {
  color: var(--accent-danger);
}

.btn-tool.danger-action:hover {
  border-color: rgba(239, 68, 68, 0.45);
  background: rgba(239, 68, 68, 0.12);
  color: var(--accent-danger);
}

.undo-toast {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.undo-toast button {
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--accent-primary);
  color: #fff;
  padding: 0.35rem 0.6rem;
  cursor: pointer;
}

.mail-full-subject {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.mail-meta-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.sender-info-box {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.sender-avatar {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.sender-text .from-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.sender-text .from-email {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.spam-score-drawer {
  margin-top: 1rem;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  font-size: 0.825rem;
}

.spam-score-drawer.is-high-spam {
  border-color: var(--accent-danger);
  background: rgba(239, 68, 68, 0.08);
}

.spam-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.reading-body {
  flex: 1;
  padding: 2rem 2.25rem;
  overflow-y: auto;
  color: var(--text-main);
  font-size: 0.95rem;
  line-height: 1.7;
}

.attachments-section {
  padding: 1.25rem 2.25rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-panel);
}

.attachments-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.attachment-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.attachment-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.6rem 0.85rem;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: inherit;
  text-decoration: none;
}

.attachment-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.attachment-actions a {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
}

.attachment-actions a:hover {
  background: var(--bg-hover);
  color: var(--accent-primary);
}

.attachment-actions svg {
  width: 16px;
  height: 16px;
}

.attachment-card:hover {
  border-color: var(--accent-primary);
  background: var(--bg-hover);
}

.security-warning,
.unsubscribe-box {
  margin-top: 0.9rem;
  border: 1px solid rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.1);
  border-radius: var(--radius-md);
  padding: 0.8rem 1rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  color: var(--text-main);
}

.security-warning svg,
.unsubscribe-box svg {
  width: 20px;
  height: 20px;
  color: var(--accent-warning);
  flex: 0 0 auto;
}

.security-warning span,
.unsubscribe-box span {
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.unsubscribe-box {
  border-color: rgba(59, 130, 246, 0.35);
  background: rgba(59, 130, 246, 0.1);
  align-items: center;
}

.unsubscribe-box svg {
  color: var(--accent-primary);
}

.unsubscribe-box a {
  margin-left: auto;
  color: var(--accent-primary);
  font-weight: 700;
  text-decoration: none;
}

.quick-reply-box {
  margin-top: 1.25rem;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  display: grid;
  gap: 0.75rem;
}

.quick-reply-box textarea {
  min-height: 92px;
  resize: vertical;
  padding: 0.8rem;
}

.quick-reply-box .btn-primary {
  width: fit-content;
  min-width: 160px;
}

.suggested-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.suggested-reply-chip {
  border: 1px solid var(--border-color);
  background: var(--bg-app);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  font-size: 0.78rem;
}

.suggested-reply-chip:hover {
  color: var(--text-main);
  border-color: var(--border-focus);
}

.conversation-panel {
  margin-top: 1.25rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.conversation-panel h4 {
  margin-bottom: 0.65rem;
  font-size: 0.95rem;
}

.conversation-item {
  width: 100%;
  border: 1px solid var(--border-color);
  background: var(--bg-panel);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.75rem;
  margin-bottom: 0.45rem;
  display: grid;
  grid-template-columns: minmax(100px, 170px) 1fr auto;
  gap: 0.75rem;
  align-items: center;
  text-align: left;
  cursor: pointer;
}

.conversation-item:hover {
  border-color: var(--accent-primary);
  background: var(--bg-hover);
}

.conversation-item span,
.conversation-item small {
  color: var(--text-dim);
}

.context-menu {
  position: fixed;
  z-index: 3000;
  min-width: 210px;
  padding: 0.35rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  box-shadow: var(--shadow-lg);
  display: none;
}

.context-menu.open {
  display: block;
}

.context-menu button {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  cursor: pointer;
  text-align: left;
}

.context-menu button:hover {
  background: var(--bg-hover);
  color: var(--text-main);
}

.context-menu button.danger {
  color: var(--accent-danger);
}

.text-viewer-card {
  max-width: min(920px, calc(100vw - 48px));
}

.source-viewer {
  max-height: 62vh;
  overflow: auto;
  white-space: pre-wrap;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* Modal Windows (Compose & Anti-Spam Manager) */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  overflow-x: hidden;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 650px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  max-height: 90vh;
}

.compose-modal-card {
  width: min(1120px, calc(100vw - 48px));
  max-width: min(1120px, calc(100vw - 48px));
  max-height: calc(100vh - 48px);
}

.compose-modal-card form {
  min-height: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.compose-modal-card .modal-body {
  min-height: 0;
  flex: 1;
  overflow-y: auto;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.compose-modal-card .modal-footer {
  flex: 0 0 auto;
  position: sticky;
  bottom: 0;
  z-index: 2;
}

.compose-modal-card .form-group {
  margin-bottom: 0.85rem;
}

.modal-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  background: var(--bg-panel);
}

.compose-textarea {
  width: 100%;
  min-height: 220px;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  outline: none;
}

.compose-textarea:focus {
  border-color: var(--border-focus);
}

.compose-editor-shell {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-app);
}
.search-box { display:flex; align-items:center; }
.search-action { width:34px; height:34px; border:0; background:transparent; color:var(--text-muted); display:grid; place-items:center; cursor:pointer; border-radius:var(--radius-sm); margin-right:0.25rem; }
.search-action:hover { background:var(--bg-hover); color:var(--text-main); }
.search-action svg { width:17px; height:17px; }
.advanced-search-panel { display:none; grid-template-columns:repeat(2, minmax(0, 1fr)) auto; gap:0.5rem; margin-top:0.65rem; }
.advanced-search-panel.open { display:grid; }
.advanced-search-panel .form-input { height:36px; padding-left:0.7rem; font-size:0.82rem; }
#modal-contacts .modal-card { max-width:min(1180px, calc(100vw - 48px)); width:min(1180px, calc(100vw - 48px)); }
.contacts-search-row .icon-btn { flex:0 0 36px; width:36px; height:36px; color:var(--text-muted); text-decoration:none; }
.mail-item { position:relative; padding-left:2.7rem; }
.mail-select-checkbox { position:absolute; left:0.85rem; top:1.15rem; width:16px; height:16px; accent-color:var(--accent-primary); }
.mail-item.multi-selected { background:rgba(59,130,246,0.2); outline:1px solid var(--accent-primary); }
.bulk-mail-toolbar { min-height:0; display:flex; align-items:center; gap:0.5rem; padding:0.45rem 0.75rem; background:var(--bg-panel-light); border-bottom:1px solid var(--border-color); color:var(--text-muted); font-size:0.82rem; flex-wrap:wrap; }
.mail-move-select { height:42px; width:132px; border:1px solid var(--border-color); border-radius:var(--radius-sm); background:var(--bg-app); color:var(--text-muted); padding:0 0.55rem; outline:none; }
.mail-move-select:hover, .mail-move-select:focus { border-color:var(--border-focus); color:var(--text-main); }
.label-badge, .thread-badge { display:inline-flex; align-items:center; gap:0.25rem; border-radius:999px; padding:0.13rem 0.45rem; font-size:0.72rem; font-weight:700; }
.label-badge { background:color-mix(in srgb, var(--label-color) 22%, transparent); color:var(--label-color); border:1px solid color-mix(in srgb, var(--label-color) 45%, transparent); }
.thread-badge { color:var(--text-muted); background:var(--bg-app); border:1px solid var(--border-color); }
.reading-labels { display:flex; flex-wrap:wrap; gap:0.4rem; margin:0.55rem 0 0.25rem; }
.settings-actions-inline { grid-column:1 / -1; display:flex; flex-wrap:wrap; gap:0.6rem; }

.activity-log-list {
  display: grid;
  gap: 0.45rem;
}

.activity-log-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-app);
  padding: 0.65rem 0.75rem;
  display: grid;
  gap: 0.25rem;
}

.activity-log-item span,
.empty-note {
  color: var(--text-dim);
  font-size: 0.82rem;
}

.diagnostics-result {
  grid-column: 1 / -1;
  display: grid;
  gap: 0.6rem;
}

.diagnostic-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-app);
  padding: 0.75rem 0.85rem;
  display: grid;
  gap: 0.25rem;
}

.diagnostic-card.ok {
  border-color: rgba(16, 185, 129, 0.45);
}

.diagnostic-card.bad {
  border-color: rgba(239, 68, 68, 0.45);
}

.diagnostic-card span {
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.4;
}

.quota-bar {
  height: 7px;
  background: var(--bg-panel);
  border-radius: 999px;
  overflow: hidden;
}

.quota-bar span {
  display: block;
  height: 100%;
  background: var(--accent-primary);
}

.compact-number {
  max-width: 120px;
}

.visual-template-field {
  align-items: start;
}

.visual-template-editor {
  display: grid;
  gap: 0.6rem;
}

.visual-rich-field {
  min-height: 120px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-app);
  color: var(--text-main);
  padding: 0.75rem;
  line-height: 1.55;
  outline: none;
}

.visual-rich-field:empty::before {
  content: attr(data-placeholder);
  color: var(--text-dim);
}

.settings-wide-block {
  grid-column: 1 / -1;
  display: grid;
  gap: 0.7rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-app);
  padding: 0.85rem;
}

.settings-wide-block h5 {
  font-size: 0.92rem;
  margin: 0;
  color: var(--text-main);
}

.filter-manager-list {
  display: grid;
  gap: 0.45rem;
}

.filter-manager-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.8fr) minmax(0, 1.2fr) auto;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  color: var(--text-muted);
  font-size: 0.84rem;
}

.filter-rule-row {
  grid-template-columns: minmax(120px, 0.7fr) minmax(0, 1.4fr) minmax(120px, 0.8fr) auto;
}

.filter-manager-row strong,
.filter-manager-row span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.filter-builder-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(140px, 1fr)) minmax(110px, 0.7fr);
  gap: 0.5rem;
  align-items: center;
}

.filter-builder-grid.label-builder {
  grid-template-columns: minmax(140px, 1fr) 72px minmax(180px, 1.4fr) auto;
}

.color-control {
  min-width: 62px;
  padding: 0.2rem;
}

.attachment-preview-card {
  width: min(1120px, calc(100vw - 48px));
  max-width: min(1120px, calc(100vw - 48px));
  height: min(820px, calc(100vh - 48px));
  display: flex;
  flex-direction: column;
}

.attachment-preview-body {
  flex: 1;
  min-height: 0;
  background: var(--bg-app);
  overflow: hidden;
}

.attachment-preview-body iframe,
.attachment-preview-body img {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.attachment-preview-body img {
  object-fit: contain;
  padding: 1rem;
}

.attachment-preview-empty {
  height: 100%;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 0.9rem;
  color: var(--text-muted);
  text-align: center;
}

.attachment-preview-empty svg {
  width: 54px;
  height: 54px;
  opacity: 0.55;
}

.translation-card {
  width: min(980px, calc(100vw - 48px));
  max-width: min(980px, calc(100vw - 48px));
}

.translation-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.translation-columns pre {
  min-height: 360px;
  max-height: 55vh;
  overflow: auto;
  white-space: pre-wrap;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-app);
  color: var(--text-main);
  padding: 0.85rem;
  line-height: 1.45;
}

.ics-preview {
  min-height: 100%;
  display: grid;
  align-content: center;
  gap: 0.75rem;
  max-width: 620px;
  margin: auto;
  padding: 2rem;
  color: var(--text-main);
}

.ics-preview > svg {
  width: 54px;
  height: 54px;
  color: var(--accent-primary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.6rem;
}

.stat-card,
.stat-line {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-app);
  padding: 0.7rem;
}

.stat-card {
  display: grid;
  gap: 0.2rem;
}

.stat-card.highlight strong {
  font-size: 1.35rem;
}

.stat-card span,
.stat-line span {
  color: var(--text-dim);
  font-size: 0.82rem;
}

.stat-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.45rem;
}

body.privacy-mode .mail-item .sender,
body.privacy-mode .mail-item .subject,
body.privacy-mode .mail-full-subject,
body.privacy-mode .from-name,
body.privacy-mode .from-email,
body.privacy-mode #user-email {
  filter: blur(5px);
  transition: filter var(--transition-fast);
}

body.privacy-mode .mail-item:hover .sender,
body.privacy-mode .mail-item:hover .subject,
body.privacy-mode .mail-full-subject:hover,
body.privacy-mode .sender-info-box:hover .from-name,
body.privacy-mode .sender-info-box:hover .from-email {
  filter: blur(0);
}
.btn-primary:disabled { opacity:0.72; cursor:wait; }
.btn-primary.is-loading svg { animation:spin 0.9s linear infinite; }
@keyframes spin { to { transform:rotate(360deg); } }

.compose-recipient-row { display:grid; grid-template-columns:1fr 1fr; gap:0.75rem; }
.contact-form { display:grid; grid-template-columns:1.1fr 1.2fr 0.8fr 1.1fr auto; gap:0.5rem; margin-bottom:1rem; align-items:center; }
.contacts-search-row { display:flex; align-items:center; gap:0.5rem; margin-bottom:1.25rem; }
.contacts-search-row svg { width:17px; color:var(--text-dim); }
.contacts-search-row .form-input { flex:1; padding-left:0.75rem; }
.contacts-heading { display:flex; align-items:center; gap:0.6rem; margin:0.5rem 0 0.7rem; }
.contacts-heading h4 { margin:0; font-size:0.95rem; }
.contacts-count { background:var(--accent-primary); color:#fff; border-radius:999px; padding:0.15rem 0.5rem; font-size:0.75rem; }
.contacts-letters { display:flex; flex-wrap:wrap; gap:0.3rem; margin-bottom:0.8rem; }
.contact-letter { border:1px solid var(--border-color); background:var(--bg-app); color:var(--text-muted); border-radius:4px; min-width:28px; height:28px; cursor:pointer; }
.contact-letter:hover { background:var(--accent-primary); color:#fff; }
.contacts-list, #contacts-list { max-height:38vh; overflow-y:auto; }
.contact-group h5 { position:sticky; top:0; z-index:1; margin:0; padding:0.35rem 0.5rem; color:var(--accent-primary); background:var(--bg-panel); }
.contact-card { display:flex; align-items:center; gap:0.75rem; padding:0.7rem 0.4rem; border-bottom:1px solid var(--border-color); }
.contact-avatar { width:36px; height:36px; flex:0 0 36px; display:grid; place-items:center; border-radius:50%; background:var(--accent-primary); color:#fff; font-weight:700; }
.contact-main { min-width:0; flex:1; display:flex; flex-direction:column; gap:0.12rem; }
.contact-main span, .contact-main small { color:var(--text-muted); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.contact-main small { color:var(--text-dim); }
.contact-actions { display:flex; gap:0.15rem; }
.contact-book-body { display:grid; grid-template-columns:170px minmax(0, 1fr) minmax(0, 0.8fr); gap:0; padding:0; min-height:520px; max-width:100%; overflow-x:hidden; }
.contact-book-sidebar { background:var(--bg-panel-light); border-right:1px solid var(--border-color); padding:1rem 0.7rem; color:var(--text-muted); }
.contact-book-sidebar > strong { display:block; padding:0 0.5rem 1rem; color:var(--text-main); }
.contact-book-folder { width:100%; display:flex; align-items:center; gap:0.5rem; border:0; background:transparent; color:var(--text-muted); padding:0.65rem 0.7rem; cursor:pointer; text-align:left; }
.contact-book-folder.active, .contact-book-folder:hover { background:var(--bg-hover); color:var(--text-main); }
.contact-book-center { min-width:0; width:100%; padding:1rem; overflow-y:auto; overflow-x:hidden; }
.contact-detail { min-width:0; max-width:100%; overflow:hidden; border-left:1px solid var(--border-color); background:var(--bg-panel-light); padding:1.5rem; }
.contact-detail-empty { height:100%; display:grid; place-items:center; align-content:center; color:var(--text-dim); text-align:center; }
.contact-detail-empty svg { width:42px; height:42px; margin:auto; }
.contact-detail-head { text-align:center; padding:1rem 0 1.5rem; border-bottom:1px solid var(--border-color); }
.contact-detail-avatar { width:86px; height:86px; margin:0 auto 1rem; display:grid; place-items:center; border-radius:50%; background:var(--accent-primary); color:#fff; font-size:1.8rem; font-weight:700; }
.contact-detail-head h3 { margin:0; font-size:1.2rem; }.contact-detail-head p { color:var(--text-muted); margin:0.35rem 0 1rem; }
.contact-detail-actions { display:flex; justify-content:center; }.contact-detail-section { padding-top:1.25rem; }.contact-detail-section h4 { margin:0 0 0.8rem; }.contact-detail-section a { display:flex; gap:0.55rem; align-items:center; margin:0.7rem 0; color:var(--accent-primary); text-decoration:none; }
@media (max-width: 900px) { .contact-book-body { grid-template-columns:1fr; }.contact-book-sidebar, .contact-detail { display:none; } #modal-contacts .modal-card { width:calc(100vw - 24px); max-width:calc(100vw - 24px); } }
@media (max-width: 1120px) { .contact-form { grid-template-columns:repeat(2, minmax(0, 1fr)); } .contact-form button { width:100% !important; } }
@media (max-width: 1120px) { .filter-builder-grid, .filter-builder-grid.label-builder { grid-template-columns:repeat(2, minmax(0, 1fr)); } .filter-manager-row, .filter-rule-row { grid-template-columns:1fr auto; } .filter-manager-row span { grid-column:1 / -1; } }
.form-hint { display:block; margin-top:0.35rem; color:var(--text-dim); font-size:0.78rem; }
.password-toggle, .settings-password-toggle { border:0; background:transparent; color:var(--text-dim); cursor:pointer; display:flex; align-items:center; justify-content:center; }
.password-toggle { position:absolute; right:0.55rem; top:50%; transform:translateY(-50%); }
.input-with-icon .form-input { padding-right:2.5rem; }
.settings-password-wrap { position:relative; display:flex; align-items:center; }
.settings-password-wrap .settings-control { padding-right:2.5rem; width:100%; }
.settings-password-toggle { position:absolute; right:0.35rem; }
.settings-password-toggle svg, .password-toggle svg { width:16px; height:16px; }
.settings-info-box { grid-column:1 / -1; display:flex; align-items:flex-start; gap:0.55rem; padding:0.75rem; color:var(--text-muted); background:var(--bg-app); border:1px solid var(--border-color); border-radius:var(--radius-sm); font-size:0.82rem; }
.mail-body-content { color:#1f2937; background:#fff; overflow-wrap:anywhere; }
.mail-body-content, .mail-body-content * { box-sizing:border-box; }
.mail-body-content { line-height:1.55; white-space:normal; }
.mail-body-content img { max-width:100%; height:auto; }
.mail-body-content table { max-width:100%; }
.mail-body-content a { color:#0759c7; }
@media (max-width: 680px) { .compose-recipient-row { grid-template-columns:1fr; gap:0; } }
@media (max-width: 850px) { .contact-form { grid-template-columns:1fr 1fr; } .contact-form button { width:100% !important; } .advanced-search-panel { grid-template-columns:1fr; } }

.compose-toolbar {
  min-height: 42px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.15rem;
  padding: 0.3rem;
  background: var(--bg-panel-light);
  border-bottom: 1px solid var(--border-color);
}

.compose-tool,
.compose-select,
.compose-color {
  height: 32px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  font: inherit;
}

.compose-tool {
  min-width: 32px;
  padding: 0 0.45rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.compose-tool svg {
  width: 17px;
  height: 17px;
}

.compose-tool:hover,
.compose-select:hover {
  background: var(--bg-hover);
  color: var(--text-main);
  border-color: var(--border-color);
}

.compose-select {
  background: var(--bg-app);
  padding: 0 0.5rem;
  outline: none;
}

.compose-color {
  width: 36px;
  padding: 0.15rem;
  cursor: pointer;
}

.compose-separator {
  width: 1px;
  height: 24px;
  background: var(--border-color);
  margin: 0 0.25rem;
}

.compose-rich-editor {
  min-height: 150px;
  max-height: 24vh;
  overflow-y: auto;
  padding: 1rem;
  color: var(--text-main);
  font-size: 0.95rem;
  line-height: 1.65;
  outline: none;
}

@media (max-height: 780px) {
  .compose-modal-card {
    align-self: stretch;
    margin: 16px 0;
    max-height: calc(100vh - 32px);
  }
  .compose-rich-editor {
    min-height: 170px;
    max-height: 26vh;
  }
}

@media (max-width: 760px) {
  .compose-modal-card {
    width: calc(100vw - 20px);
    max-width: calc(100vw - 20px);
  }
  .compose-toolbar {
    overflow-x: auto;
    flex-wrap: nowrap;
  }
  .compose-recipient-row {
    grid-template-columns: 1fr;
  }
}

.compose-rich-editor:empty::before {
  content: attr(data-placeholder);
  color: var(--text-dim);
  pointer-events: none;
}

/* Classic Settings Window */
.settings-window {
  width: min(1120px, calc(100vw - 3rem));
  height: min(720px, calc(100vh - 3rem));
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.settings-topbar {
  height: 64px;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-panel);
}

.settings-subtitle {
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-top: 0.1rem;
}

.settings-shell {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 250px 300px minmax(0, 1fr);
}

.settings-nav,
.settings-sections {
  min-height: 0;
  overflow-y: auto;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
}

.settings-sections {
  background: color-mix(in srgb, var(--bg-sidebar) 76%, var(--bg-panel-light));
}

.settings-column-title {
  padding: 0.85rem 0.95rem 0.55rem;
  color: var(--text-main);
  font-weight: 700;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border-color);
}

.settings-nav-item,
.settings-section-item {
  width: 100%;
  height: 42px;
  padding: 0 0.95rem;
  border: 0;
  border-bottom: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.86rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-align: left;
  transition: all var(--transition-fast);
}

.settings-nav-item svg,
.settings-section-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.settings-nav-item:hover,
.settings-section-item:hover {
  background: var(--bg-hover);
  color: var(--text-main);
}

.settings-nav-item.active,
.settings-section-item.active {
  background: var(--bg-selected);
  color: var(--accent-primary);
  font-weight: 700;
}

.settings-detail {
  min-width: 0;
  overflow-y: auto;
  background: var(--bg-panel-light);
  padding: 1.25rem 1.5rem;
}

.settings-panel {
  max-width: 760px;
}

.settings-panel h4 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.settings-panel-intro {
  color: var(--text-muted);
  font-size: 0.86rem;
  margin-bottom: 1.25rem;
}

.settings-form-grid {
  display: grid;
  gap: 1rem;
}

.settings-field {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.settings-field label {
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 600;
}

.settings-control,
.settings-textarea {
  width: 100%;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font: inherit;
  font-size: 0.86rem;
  padding: 0.55rem 0.7rem;
  outline: none;
}

.settings-textarea {
  min-height: 92px;
  resize: vertical;
}

.settings-control:focus,
.settings-textarea:focus {
  border-color: var(--border-focus);
}

.translation-body .compact-select {
  width: 150px;
  min-width: 150px;
  height: 40px;
  line-height: 1.2;
  padding: 0 2rem 0 0.85rem;
  font-size: 0.9rem;
}

.settings-check {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text-main);
  font-size: 0.86rem;
}

.settings-check input {
  width: 16px;
  height: 16px;
}

.settings-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.7rem;
  margin-top: 1.25rem;
}

.settings-mini-table {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-app);
}

.settings-mini-row {
  min-height: 42px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.86rem;
}

.settings-mini-row:last-child {
  border-bottom: 0;
}

@media (max-width: 980px) {
  .app-container {
    grid-template-columns: 82px minmax(280px, 1fr);
  }

  .sidebar {
    width: 82px;
  }

  .sidebar-brand span,
  .btn-compose span,
  .folder-left span,
  .nav-section-title,
  .user-details,
  .folder-actions {
    display: none;
  }

  .btn-compose,
  .folder-item {
    justify-content: center;
    padding-left: 0;
    padding-right: 0;
  }

  .mail-list-column {
    width: min(420px, calc(100vw - 82px));
  }

  .mail-reading-pane {
    position: fixed;
    inset: 0 0 0 82px;
    z-index: 20;
  }

  .mail-reading-pane:has(.pane-empty-state) {
    display: none;
  }
}

@media (max-width: 720px) {
  .mail-list-column {
    width: calc(100vw - 82px);
  }

  .list-title-row,
  .filter-bar,
  .action-toolbar,
  .tool-group {
    flex-wrap: wrap;
  }

  .list-controls {
    width: 100%;
  }

  .compact-select {
    flex: 1;
    max-width: none;
  }

  .reading-header,
  .reading-body,
  .attachments-section {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .conversation-item {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}

.settings-pill {
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: var(--radius-full);
  padding: 0.15rem 0.55rem;
  font-size: 0.72rem;
}

@media (max-width: 900px) {
  .settings-shell {
    grid-template-columns: 190px 1fr;
  }

  .settings-detail {
    grid-column: 1 / -1;
  }

  .settings-field {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 9999;
}

.toast {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-primary);
  color: var(--text-main);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}