/* ============================================
   GoMail — Flat, Professional UI
   ============================================ */

/* --- CSS Variables / Theme --- */
:root,
[data-theme="light"] {
  --color-bg: #f8f9fb;
  --color-surface: #ffffff;
  --color-surface-hover: #f1f3f5;
  --color-surface-active: #e9ecef;
  --color-border: #e2e5ea;
  --color-border-light: #eef0f3;
  --color-text: #1a1d23;
  --color-text-secondary: #6b7280;
  --color-text-tertiary: #9ca3af;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-primary-text: #ffffff;
  --color-danger: #dc2626;
  --color-danger-light: #fef2f2;
  --color-success: #16a34a;
  --color-success-light: #f0fdf4;
  --color-warning: #d97706;
  --color-warning-light: #fffbeb;
  --color-sidebar-bg: #ffffff;
  --color-sidebar-border: #e2e5ea;
  --color-topbar-bg: #ffffff;
  --color-topbar-border: #e2e5ea;
  --color-card-bg: #ffffff;
  --color-input-bg: #ffffff;
  --color-input-border: #d1d5db;
  --color-input-focus: #2563eb;
  --color-overlay: rgba(0, 0, 0, 0.04);
  --color-shadow: rgba(0, 0, 0, 0.04);
  --color-shadow-lg: rgba(0, 0, 0, 0.08);
  --sidebar-width: 240px;
  --sidebar-collapsed-width: 64px;
  --topbar-height: 56px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

[data-theme="dark"] {
  --color-bg: #0f1117;
  --color-surface: #1a1d27;
  --color-surface-hover: #242733;
  --color-surface-active: #2d3040;
  --color-border: #2d3040;
  --color-border-light: #222533;
  --color-text: #e8eaed;
  --color-text-secondary: #9ca3af;
  --color-text-tertiary: #6b7280;
  --color-primary: #3b82f6;
  --color-primary-hover: #60a5fa;
  --color-primary-light: #1e293b;
  --color-primary-text: #ffffff;
  --color-danger: #ef4444;
  --color-danger-light: #2d1b1b;
  --color-success: #22c55e;
  --color-success-light: #1a2e1a;
  --color-warning: #f59e0b;
  --color-warning-light: #2d2515;
  --color-sidebar-bg: #14161f;
  --color-sidebar-border: #222533;
  --color-topbar-bg: #14161f;
  --color-topbar-border: #222533;
  --color-card-bg: #1a1d27;
  --color-input-bg: #1a1d27;
  --color-input-border: #374151;
  --color-input-focus: #3b82f6;
  --color-overlay: rgba(255, 255, 255, 0.03);
  --color-shadow: rgba(0, 0, 0, 0.2);
  --color-shadow-lg: rgba(0, 0, 0, 0.4);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  font-size: inherit;
  color: inherit;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* --- Utility --- */
.hidden { display: none !important; }

/* --- Screen Layout --- */
.screen {
  min-height: 100vh;
}

/* --- Login Screen --- */
.login-container {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  gap: 48px;
  padding: 24px;
}

.login-brand {
  text-align: center;
  max-width: 320px;
}

.login-logo {
  margin-bottom: 16px;
}

.login-brand h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.login-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: 0 1px 3px var(--color-shadow);
}

.login-card h2 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 4px;
}

.login-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.login-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  background: var(--color-surface-hover);
  border-radius: var(--radius-md);
  padding: 3px;
}

.login-tab {
  flex: 1;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: calc(var(--radius-md) - 2px);
  transition: background 0.15s, color 0.15s;
  text-align: center;
}

.login-tab:hover {
  color: var(--color-text);
}

.login-tab.active {
  background: var(--color-card-bg);
  color: var(--color-text);
  box-shadow: 0 1px 2px var(--color-shadow);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* --- Form Fields --- */
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.field input,
.field select {
  width: 100%;
  padding: 10px 12px;
  background: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.field input:focus,
.field select:focus {
  border-color: var(--color-input-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.field input::placeholder {
  color: var(--color-text-tertiary);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-text);
}

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

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-text-tertiary);
}

.btn-danger {
  background: var(--color-danger);
  color: white;
}

.btn-danger:hover {
  opacity: 0.9;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid transparent;
}

.btn-ghost:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-xs {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-full {
  width: 100%;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: background 0.15s, color 0.15s;
}

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

/* --- Form Error --- */
.form-error {
  font-size: 13px;
  color: var(--color-danger);
  background: var(--color-danger-light);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(220, 38, 38, 0.15);
}

.form-success {
  font-size: 13px;
  color: var(--color-success);
  background: var(--color-success-light);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(22, 163, 74, 0.15);
}

/* --- App Shell --- */
#app-shell {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--color-sidebar-bg);
  border-right: 1px solid var(--color-sidebar-border);
  display: flex;
  flex-direction: column;
  transition: width 0.2s, min-width 0.2s;
  overflow: hidden;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
  min-width: var(--sidebar-collapsed-width);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  height: var(--topbar-height);
  border-bottom: 1px solid var(--color-sidebar-border);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.sidebar-title {
  font-size: 18px;
  font-weight: 700;
  white-space: nowrap;
}

.sidebar.collapsed .sidebar-title,
.sidebar.collapsed .sidebar-mx-label,
.sidebar.collapsed .sidebar-mx-value,
.sidebar.collapsed .nav-item span {
  display: none;
}

.sidebar-collapse {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  transition: background 0.15s;
  flex-shrink: 0;
}

.sidebar-collapse:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.sidebar.collapsed .sidebar-collapse svg {
  transform: rotate(180deg);
}

.sidebar-nav {
  flex: 1;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.nav-item:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.nav-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.nav-item svg {
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--color-sidebar-border);
}

.sidebar-mx {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-mx-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
}

.sidebar-mx-value {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  word-break: break-all;
}

/* --- Main Area --- */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* --- Top Bar --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--topbar-height);
  padding: 0 24px;
  background: var(--color-topbar-bg);
  border-bottom: 1px solid var(--color-topbar-border);
  flex-shrink: 0;
}

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

.topbar-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
}

.topbar-menu-btn:hover {
  background: var(--color-surface-hover);
}

.topbar-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-section {
  font-size: 13px;
  color: var(--color-text-tertiary);
  font-weight: 500;
}

.breadcrumb-sep {
  font-size: 13px;
  color: var(--color-text-tertiary);
}

.breadcrumb-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --- Account Menu --- */
.account-menu {
  position: relative;
}

.account-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius-md);
  transition: background 0.15s;
}

.account-trigger:hover {
  background: var(--color-surface-hover);
}

.account-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}

.account-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
}

.account-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 220px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 16px var(--color-shadow-lg);
  z-index: 100;
  overflow: hidden;
}

.dropdown-header {
  padding: 12px 14px;
}

.dropdown-email {
  font-size: 13px;
  color: var(--color-text-secondary);
  word-break: break-all;
}

.dropdown-divider {
  height: 1px;
  background: var(--color-border);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  transition: background 0.15s;
  text-align: left;
}

.dropdown-item:hover {
  background: var(--color-surface-hover);
}

.dropdown-danger {
  color: var(--color-danger);
}

.dropdown-danger:hover {
  background: var(--color-danger-light);
}

/* --- Content Area --- */
.content {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  min-height: 0;
}

/* --- Cards --- */
.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border-light);
}

.card-header h3 {
  font-size: 15px;
  font-weight: 600;
}

.card-body {
  padding: 20px;
}

.card-body-compact {
  padding: 16px 20px;
}

.card-header .sub {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-top: 2px;
}

/* --- Stat Cards --- */
.stats-grid {
  display: grid;
  gap: 16px;
}

.stats-3 {
  grid-template-columns: repeat(3, 1fr);
}

.stats-4 {
  grid-template-columns: repeat(4, 1fr);
}

.stat-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  margin-bottom: 8px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.stat-value-sm {
  font-size: 22px;
}

/* --- Grid Layouts --- */
.grid-2 {
  display: grid;
  gap: 20px;
}

.grid-2-equal {
  grid-template-columns: 1fr 1fr;
}

.grid-2-wide {
  grid-template-columns: 1.4fr 1fr;
}

.grid-2-narrow {
  grid-template-columns: 1fr 1.4fr;
}

/* --- Tables --- */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

thead th {
  text-align: left;
  padding: 10px 16px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-tertiary);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: middle;
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background: var(--color-surface-hover);
}

.inline-code {
  display: inline-block;
  padding: 3px 6px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-hover);
  color: var(--color-text);
  font-size: 12px;
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 100px;
  white-space: nowrap;
}

.badge-verified {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge-verified_warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.badge-pending {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.badge-failed {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.badge-flagged {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.badge-infected {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.badge-clean {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge-default {
  background: var(--color-surface-hover);
  color: var(--color-text-secondary);
}

.quota-meter {
  width: 100%;
  height: 7px;
  overflow: hidden;
  background: var(--color-surface-hover);
  border-radius: 999px;
}

.quota-meter span {
  display: block;
  height: 100%;
  min-width: 2px;
  background: var(--color-primary);
  border-radius: inherit;
}

/* --- Email 3-Column Layout --- */
.email-layout {
  display: grid;
  grid-template-columns: 280px 380px 1fr;
  min-height: calc(100vh - var(--topbar-height) - 48px);
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.email-panel {
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.email-panel:last-child {
  border-right: none;
}

.email-panel-header {
  padding: 16px;
  border-bottom: 1px solid var(--color-border-light);
  flex-shrink: 0;
}

.email-panel-header h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}

.email-panel-header .sub {
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.email-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

/* --- Inbox List --- */
.inbox-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background 0.15s;
}

.inbox-item:hover {
  background: var(--color-surface-hover);
}

.inbox-item.active {
  background: var(--color-primary-light);
}

.inbox-item.active .inbox-address {
  color: var(--color-primary);
  font-weight: 600;
}

.inbox-address {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  word-break: break-all;
  min-width: 0;
}

.inbox-status {
  font-size: 11px;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
}

/* --- Email List --- */
.email-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px;
  border-radius: var(--radius-md);
  transition: background 0.15s;
  border: none;
  background: none;
  cursor: pointer;
}

.email-item:hover {
  background: var(--color-surface-hover);
}

.email-item.active {
  background: var(--color-primary-light);
}

.email-item-row {
  display: flex;
  gap: 10px;
}

.email-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-surface-hover);
  color: var(--color-text-secondary);
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}

.email-item.active .email-avatar {
  background: var(--color-primary);
  color: white;
}

.email-item-content {
  min-width: 0;
  flex: 1;
}

.email-item-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}

.email-item-subject {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-item-time {
  font-size: 11px;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
}

.email-item-from {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-item-snippet {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-top: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- Email Detail --- */
.email-detail {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.email-detail-header {
  padding: 20px;
  border-bottom: 1px solid var(--color-border-light);
}

.email-detail-sender {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.email-detail-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-size: 16px;
  font-weight: 600;
  flex-shrink: 0;
}

.email-detail-meta {
  flex: 1;
  min-width: 0;
}

.email-detail-subject {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  word-break: break-word;
}

.email-detail-from,
.email-detail-to {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 2px;
}

.email-detail-from strong,
.email-detail-to strong {
  color: var(--color-text);
  font-weight: 500;
}

.email-detail-time {
  font-size: 12px;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
  text-align: right;
}

.email-detail-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.email-detail-section {
  margin-bottom: 20px;
}

.email-detail-section:last-child {
  margin-bottom: 0;
}

.email-detail-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-tertiary);
  margin-bottom: 10px;
}

.email-detail-html {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
}

.email-detail-html img {
  max-width: 100%;
  height: auto;
}

.email-detail-plain {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.email-detail-auth {
  font-size: 12px;
  color: var(--color-text-tertiary);
  white-space: pre-wrap;
  word-break: break-word;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

/* --- Attachments --- */
.attachment-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
}

.attachment-item:last-child {
  margin-bottom: 0;
}

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

.attachment-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  word-break: break-all;
}

.attachment-meta {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-top: 2px;
}

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

.attachment-blocked {
  font-size: 12px;
  color: var(--color-danger);
}

/* --- Empty States --- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
}

.empty-state-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-surface-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  color: var(--color-text-tertiary);
}

.empty-state-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.empty-state-desc {
  font-size: 13px;
  color: var(--color-text-tertiary);
  max-width: 280px;
}

/* --- Forms in App --- */
.form-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.form-card h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 12px;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 9px 12px;
  background: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--color-input-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input:disabled {
  color: var(--color-text-secondary);
  background: var(--color-surface-hover);
  cursor: not-allowed;
}

.smtp-settings-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.smtp-setting {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.smtp-setting-label,
.smtp-setting-note {
  display: block;
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.smtp-setting-value {
  display: block;
  margin-top: 4px;
  color: var(--color-text);
  font-size: 13px;
  white-space: normal;
  overflow-wrap: anywhere;
}

.smtp-setting-note {
  margin-top: 4px;
}

.api-key-reveal-note {
  margin-bottom: 12px;
  color: var(--color-warning);
  font-size: 13px;
}

.copy-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.copy-field code {
  display: block;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-hover);
  font-size: 13px;
  color: var(--color-text);
  overflow-wrap: anywhere;
}

.domain-dropdown {
  position: relative;
}

.domain-dropdown-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  color: var(--color-text);
  background: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-md);
  font-size: 14px;
}

.domain-dropdown-trigger:hover,
.domain-dropdown-trigger:focus {
  border-color: var(--color-input-focus);
}

.domain-dropdown-menu {
  position: absolute;
  z-index: 400;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 260px;
  overflow-y: auto;
  padding: 6px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px var(--color-shadow-lg);
}

.domain-dropdown-item {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  text-align: left;
}

.domain-dropdown-item:hover {
  background: var(--color-surface-hover);
}

.domain-dropdown-item.disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

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

.domain-dropdown-empty {
  padding: 10px;
  font-size: 12px;
  color: var(--color-text-tertiary);
  text-align: center;
}

.form-message {
  margin-top: 12px;
  padding: 10px 14px;
  font-size: 13px;
  border-radius: var(--radius-md);
}

.form-message.success {
  background: var(--color-success-light);
  color: var(--color-success);
  border: 1px solid rgba(22, 163, 74, 0.15);
}

.form-message.error {
  background: var(--color-danger-light);
  color: var(--color-danger);
  border: 1px solid rgba(220, 38, 38, 0.15);
}

/* --- MX Instruction --- */
.mx-instruction {
  background: var(--color-surface-hover);
  border-radius: var(--radius-md);
  padding: 16px;
}

.mx-instruction-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  margin-bottom: 8px;
}

.mx-instruction-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  font-family: 'SF Mono', 'Fira Code', monospace;
  padding: 8px 12px;
  background: var(--color-primary-light);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.mx-instruction-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 8px;
  line-height: 1.5;
}

/* --- Dashboard Hero --- */
.dashboard-hero {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
}

.dashboard-hero-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  margin-bottom: 4px;
}

.dashboard-hero-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
}

/* --- Info Rows --- */
.info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--color-surface-hover);
  border-radius: var(--radius-md);
  margin-bottom: 6px;
}

.info-row:last-child {
  margin-bottom: 0;
}

.info-row-label {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.info-row-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  padding: 24px;
}

.modal {
  width: 100%;
  max-width: 440px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 8px 32px var(--color-shadow-lg);
  overflow: visible;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  color: var(--color-text-tertiary);
  transition: background 0.15s, color 0.15s;
}

.modal-close:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.modal-body {
  padding: 20px 24px 24px;
  overflow: visible;
}

/* --- Theme Icons --- */
[data-theme="light"] .theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: none; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .email-layout {
    grid-template-columns: 1fr;
  }

  .email-panel {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .email-panel:last-child {
    border-bottom: none;
  }

  .stats-3,
  .stats-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-2-equal,
  .grid-2-wide,
  .grid-2-narrow {
    grid-template-columns: 1fr;
  }

  .smtp-settings-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .login-container {
    flex-direction: column;
    gap: 32px;
    padding: 16px;
  }

  .login-brand {
    max-width: 100%;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.2s;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .topbar-menu-btn {
    display: flex;
  }

  .account-name {
    display: none;
  }

  .content {
    padding: 16px;
  }

  .stats-3,
  .stats-4 {
    grid-template-columns: 1fr 1fr;
  }

  .websites-grid {
    grid-template-columns: 1fr;
  }

  .smtp-settings-grid,
  .copy-field {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Websites
   ============================================ */

.websites-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.website-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.15s;
}

.website-card:hover {
  box-shadow: 0 2px 8px var(--color-shadow-lg);
}

.website-card-thumb {
  width: 100%;
  height: 140px;
  overflow: hidden;
  background: var(--color-surface-hover);
  display: flex;
  align-items: center;
  justify-content: center;
}

.website-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.website-card-placeholder {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.website-card-body {
  padding: 14px 16px;
}

.website-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.website-card-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin: 0;
}

.website-card-url {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 2px 0;
}

.website-card-meta {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin: 2px 0 0;
}

.website-card-error {
  font-size: 12px;
  color: var(--color-danger);
  margin: 6px 0 0;
  padding: 6px 8px;
  background: var(--color-danger-light);
  border-radius: var(--radius-sm);
}

.website-card-actions {
  display: flex;
  gap: 6px;
  padding: 10px 16px;
  border-top: 1px solid var(--color-border);
}

/* Website Settings Tabs */
.website-tab {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.website-tab:hover {
  color: var(--color-text);
}

.website-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Spin animation for deploy spinner */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.spin {
  animation: spin 0.8s linear infinite;
}