/* ==========================================================================
   FCC URL SHORTENER — DESIGN SYSTEM CSS
   Based on freecomchurch.org/03-design-system.md v1.0
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Mulish:ital,wght@0,300;0,400;0,600;0,700;0,800;1,800&family=Source+Serif+4:ital,wght@0,400;0,600;1,400&display=swap');

:root {
  /* Teal Palette */
  --teal-50: #F0F8F8;
  --teal-100: #D9EEEE;
  --teal-200: #B3DCDD;
  --teal-300: #7FC4C6;
  --teal-400: #4FAEB0;
  --teal-500: #239699;
  --teal-600: #1C7678;
  --teal-700: #186668;
  --teal-800: #135153;
  --teal-900: #0D393A;

  /* Dove Gold */
  --gold-50: #FEFBE8;
  --gold-100: #FDF4B8;
  --gold-300: #FAE76B;
  --gold-500: #F8DC29;
  --gold-700: #BCA306;

  /* Ink & Neutrals */
  --ink-950: #14161A;
  --ink-900: #1F2328;
  --ink-700: #2F3439;
  --ink-600: #474D53;
  --ink-500: #5B6168;
  --ink-400: #6B737A;
  --ink-300: #9AA1A7;
  --ink-200: #C4C9CD;
  --ink-100: #DDE1E3;
  --ink-50: #EEF0F1;
  --ink-25: #F7F8F8;

  /* Accent Palette */
  --coral: #E07050;
  --coral-wash: #FBEDE6;
  --saffron: #E8A810;
  --saffron-wash: #FBF1D9;
  --blue: #186088;
  --blue-wash: #E3EEF4;
  --forest: #24704A;
  --forest-wash: #E4EFE8;

  /* Semantic Variables (Light Theme Default) */
  --color-bg: #F7F8F8;
  --color-surface: #FFFFFF;
  --color-surface-sunken: #EEF0F1;
  --color-text: #1F2328;
  --color-text-heading: #14161A;
  --color-text-muted: #5B6168;
  --color-link: #186668;
  --color-link-hover: #135153;
  --color-primary: #1C7678;
  --color-primary-hover: #186668;
  --color-on-primary: #FFFFFF;
  --color-accent: #F8DC29;
  --color-on-accent: #1F2328;
  --color-border: #DDE1E3;
  --color-border-strong: #C4C9CD;
  --color-focus: #1C7678;

  /* Radius Tokens */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-pill: 999px;
  --radius-full: 50%;

  /* Typography */
  --font-sans: 'Mulish', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Source Serif 4', Georgia, serif;

  /* Shadows */
  --shadow-1: 0 1px 2px rgb(20 22 26 / 0.05);
  --shadow-2: 0 4px 12px rgb(20 22 26 / 0.08);
  --shadow-3: 0 12px 32px rgb(20 22 26 / 0.14);
}

[data-theme="dark"] {
  --color-bg: #14161A;
  --color-surface: #1F2328;
  --color-surface-sunken: #101215;
  --color-text: #EEF0F1;
  --color-text-heading: #FFFFFF;
  --color-text-muted: #9AA1A7;
  --color-link: #7FC4C6;
  --color-link-hover: #B3DCDD;
  --color-primary: #4FAEB0;
  --color-primary-hover: #7FC4C6;
  --color-on-primary: #14161A;
  --color-accent: #F8DC29;
  --color-on-accent: #14161A;
  --color-border: #2F3439;
  --color-border-strong: #474D53;
  --color-focus: #F8DC29;
  --shadow-1: 0 1px 2px rgb(0 0 0 / 0.3);
  --shadow-2: 0 4px 14px rgb(0 0 0 / 0.4);
  --shadow-3: 0 12px 36px rgb(0 0 0 / 0.6);
}

/* Base Resets & Constraints (Zero Horizontal Scrolling) */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--color-link-hover);
}

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-1);
}

.header-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 20px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-entity {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  height: 28px;
  width: auto;
  max-width: 190px;
  object-fit: contain;
}

/* Light / Dark Mode Logo Visibility */
:root .logo-light,
[data-theme="light"] .logo-light,
:root:not([data-theme="dark"]) .logo-light {
  display: inline-block !important;
}
:root .logo-dark,
[data-theme="light"] .logo-dark,
:root:not([data-theme="dark"]) .logo-dark {
  display: none !important;
}

[data-theme="dark"] .logo-light {
  display: none !important;
}
[data-theme="dark"] .logo-dark {
  display: inline-block !important;
}

/* Fallback legacy classes */
:root .light-only,
[data-theme="light"] .light-only {
  display: inline-block;
}
:root .dark-only,
[data-theme="light"] .dark-only {
  display: none !important;
}
[data-theme="dark"] .light-only {
  display: none !important;
}
[data-theme="dark"] .dark-only {
  display: inline-block !important;
}

/* Domain-based Brand Switching (FCC vs Amplify) */
body.domain-amplify #brandFCC,
body.domain-amplify #drawerBrandFCC,
body.domain-amplify .fcc-only {
  display: none !important;
}
body:not(.domain-amplify) #brandAmplify,
body:not(.domain-amplify) #drawerBrandAmplify,
body:not(.domain-amplify) .amplify-only {
  display: none !important;
}

.brand-badge {
  background: var(--teal-100);
  color: var(--teal-800);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

[data-theme="dark"] .brand-badge {
  background: #10292A;
  color: var(--teal-300);
}

.brand-badge.badge-amplify {
  background: #E3EEF4;
  color: #186088;
}

[data-theme="dark"] .brand-badge.badge-amplify {
  background: #0E2535;
  color: #7FC4C6;
}

/* Nav Tabs */
.nav-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-tab {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: var(--radius-pill);
  transition: all 0.15s ease;
  cursor: pointer;
}
.nav-tab:hover {
  color: var(--color-text);
  background-color: var(--color-surface-sunken);
}
.nav-tab.active {
  color: var(--color-primary);
  background-color: var(--teal-50);
}
[data-theme="dark"] .nav-tab.active {
  background-color: #10292A;
}

/* Domain Switcher Pills */
.domain-switcher {
  display: inline-flex;
  background-color: var(--color-surface-sunken);
  padding: 3px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
}

.domain-pill {
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-pill);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}
.domain-pill:hover {
  color: var(--color-text);
}
.domain-pill.active {
  background-color: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-1);
}

/* Mobile Vertical Domain Switcher (Prevents bleeding over bounding box) */
.domain-switcher.mobile-vertical,
#domainSwitcherMobile {
  display: flex !important;
  flex-direction: column !important;
  width: 100% !important;
  border-radius: var(--radius-md) !important;
  padding: 4px !important;
  gap: 3px !important;
  background-color: var(--color-surface-sunken) !important;
  border: 1px solid var(--color-border) !important;
  box-sizing: border-box !important;
  overflow: hidden !important;
}

.domain-switcher.mobile-vertical .domain-pill,
#domainSwitcherMobile .domain-pill {
  width: 100% !important;
  text-align: center !important;
  border-radius: var(--radius-sm) !important;
  padding: 8px 12px !important;
  font-size: 13px !important;
  box-sizing: border-box !important;
}

.domain-switcher.mobile-vertical .domain-pill.active,
#domainSwitcherMobile .domain-pill.active {
  background-color: var(--color-surface) !important;
  color: var(--color-primary) !important;
  box-shadow: var(--shadow-1) !important;
}

/* User Profile & Dropdown Menu (Desktop) */
.user-dropdown-wrap {
  position: relative;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 6px;
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-sunken);
  border: 1px solid var(--color-border);
  cursor: pointer;
  user-select: none;
  transition: all 0.15s ease;
}

.user-profile:hover {
  background-color: var(--color-surface);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-1);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background-color: var(--teal-600);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  object-fit: cover;
  flex-shrink: 0;
}

.user-profile-name {
  font-weight: 700;
  font-size: 13px;
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-text-heading);
}

.dropdown-chevron {
  color: var(--color-text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.user-dropdown-wrap.open .dropdown-chevron {
  transform: rotate(180deg);
}

.user-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 230px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-3);
  padding: 6px;
  z-index: 1000;
  display: none;
  animation: dropdownFadeIn 0.15s ease;
}

.user-dropdown-wrap.open .user-dropdown-menu {
  display: block;
}

@keyframes dropdownFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-header {
  padding: 8px 12px 6px;
}

.dropdown-user-email {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-heading);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dropdown-user-role {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.dropdown-divider {
  height: 1px;
  background-color: var(--color-border);
  margin: 4px 0;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease;
  box-sizing: border-box;
}

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

.dropdown-item.text-danger {
  color: #D92D20;
}

.dropdown-item.text-danger:hover {
  background-color: #FEE4E2;
  color: #B42318;
}

[data-theme="dark"] .dropdown-item.text-danger:hover {
  background-color: #381A18;
  color: #FDA29B;
}

.dropdown-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
}

.dropdown-item:hover .dropdown-item-icon {
  color: currentColor;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  min-height: 38px;
}
.btn-sm {
  padding: 5px 12px;
  font-size: 13px;
  min-height: 32px;
}
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}
.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-on-primary);
}
.btn-secondary {
  background-color: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-secondary:hover {
  border-color: var(--color-border-strong);
  background-color: var(--color-surface-sunken);
}
.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-on-accent);
}
.btn-accent:hover {
  filter: brightness(0.95);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
}
.btn-ghost:hover {
  color: var(--color-text);
  background-color: var(--color-surface-sunken);
}
.btn-danger {
  background-color: #B42318;
  color: #FFFFFF;
}
.btn-danger:hover {
  background-color: #912018;
}

/* Header Right Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* User Profile Badge */
.user-profile {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-pill);
  transition: background-color 0.15s ease;
}
.user-profile:hover {
  background-color: var(--color-surface-sunken);
}
.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--teal-600);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  object-fit: cover;
}

/* Mobile Hamburger Toggle */
.hamburger-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-text);
  width: 40px;
  height: 40px;
  min-width: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  padding: 0;
  transition: background-color 0.15s ease;
}
.hamburger-btn:hover {
  background-color: var(--color-surface-sunken);
}
.hamburger-btn svg {
  stroke: var(--color-text);
}

/* Mobile Drawer */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(20, 22, 26, 0.6);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.mobile-drawer.open {
  display: block !important;
  opacity: 1;
  pointer-events: auto;
}
.mobile-drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: 85%;
  max-width: 340px;
  height: 100%;
  background: var(--color-surface);
  box-shadow: var(--shadow-3);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow-y: auto;
}
.mobile-drawer.open .mobile-drawer-panel {
  transform: translateX(0);
}
.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

/* Main Container */
.main-content {
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

/* Signature Section Title */
.section-title {
  font-size: 26px;
  font-style: italic;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.section-subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

/* Toolbar & Search Bar */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 20px;
  background-color: var(--color-surface);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.search-wrap {
  position: relative;
  flex: 1;
  min-width: 240px;
  max-width: 480px;
}
.search-input {
  width: 100%;
  height: 40px;
  padding: 8px 16px 8px 38px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface-sunken);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease;
}
.search-input:focus {
  border-color: var(--color-focus);
}
.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

/* Links Table / Card List */
.table-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.links-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.links-table th {
  padding: 12px 16px;
  background-color: var(--color-surface-sunken);
  color: var(--color-text-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-border);
}

.links-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.links-table tr:last-child td {
  border-bottom: none;
}
.links-table tr:hover {
  background-color: var(--teal-50);
}
[data-theme="dark"] .links-table tr:hover {
  background-color: #172728;
}

.link-title-cell {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.short-url-link {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.destination-preview {
  font-size: 13px;
  color: var(--color-text-muted);
  max-width: 380px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.click-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background-color: var(--color-surface-sunken);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--color-text);
}

/* Modals */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(20, 22, 26, 0.65);
  backdrop-filter: blur(2px);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal-overlay.open {
  display: flex;
}
.modal-box {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-3);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 28px;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.modal-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text-heading);
}

/* Form Groups */
.form-group {
  margin-bottom: 16px;
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-focus);
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
  box-shadow: var(--shadow-1);
}
.stat-num {
  font-size: 32px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
  margin-top: 4px;
}
.stat-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Responsive Rules for Mobile (< 1024px) */
@media (max-width: 1023px) {
  .nav-tabs, .header-domain-switcher {
    display: none !important;
  }
  .hamburger-btn {
    display: inline-flex !important;
  }
  .header-container {
    height: 60px;
    padding: 0 16px;
    gap: 8px;
  }
  .header-actions {
    gap: 6px;
  }
  .user-dropdown-wrap {
    display: none !important;
  }
  .brand-logo-wrap {
    gap: 8px;
    min-width: 0;
    flex-shrink: 1;
  }
  .brand-logo {
    height: 24px;
    max-width: 140px;
  }
  .main-content {
    padding: 16px 14px 40px;
  }
  
  /* Transform table into mobile cards */
  .links-table thead {
    display: none;
  }
  .links-table, .links-table tbody, .links-table tr, .links-table td {
    display: block;
    width: 100%;
  }
  .links-table tr {
    margin-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
    padding: 14px 16px;
  }
  .links-table td {
    padding: 6px 0;
    border: none;
  }
  .destination-preview {
    max-width: 100%;
  }
  .mobile-actions-row {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .header-container {
    padding: 0 10px;
  }
  .brand-badge {
    display: none;
  }
  .brand-logo {
    height: 22px;
    max-width: 110px;
  }
  .btn-new-link .btn-label {
    display: none;
  }
  .btn-new-link {
    padding: 6px 10px;
    min-height: 32px;
  }
  .hamburger-btn {
    width: 36px;
    height: 36px;
    min-width: 36px;
  }
}