/* ============================================
   ClassTests Design System
   ============================================ */

/* --- Font Faces --- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/classtests/fonts/Inter-Regular.ttf') format('truetype');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/classtests/fonts/Inter-Medium.ttf') format('truetype');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/classtests/fonts/Inter-SemiBold.ttf') format('truetype');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/classtests/fonts/Inter-Bold.ttf') format('truetype');
}

/* --- CSS Variables --- */
:root {
  /* Colors — abgestimmt auf ClassCards / ClassCheck */
  --ct-primary: #5D4C9A;
  --ct-primary-light: #7A6BB5;
  --ct-primary-dark: #4A3D7A;
  --ct-primary-bg: #EEEAF5;
  --ct-accent: #e0a820;
  --ct-success: #16A34A;
  --ct-warning: #ea580c;
  --ct-danger: #DC2626;

  /* Gradients */
  --ct-gradient: linear-gradient(135deg, #5D4C9A 0%, #7A6BB5 100%);
  --ct-gradient-dark: linear-gradient(135deg, #4A3D7A 0%, #5D4C9A 50%, #4A3D7A 100%);

  /* Background & Surface */
  --ct-bg: #F9F9F9;
  --ct-card-bg: #FFFFFF;
  --ct-text-primary: #1E293B;
  --ct-text-secondary: #64748B;
  --ct-text-muted: #94A3B8;
  --ct-border: #E8DFD3;
  --ct-bg-hover: #F2F2F2;

  /* Spacing (clamp for fluid sizing) */
  --ct-space-xs: clamp(0.25rem, 0.5vw, 0.5rem);
  --ct-space-sm: clamp(0.5rem, 1vw, 0.75rem);
  --ct-space-md: clamp(0.75rem, 1.5vw, 1rem);
  --ct-space-lg: clamp(1rem, 2vw, 1.5rem);
  --ct-space-xl: clamp(1.5rem, 3vw, 2rem);
  --ct-space-2xl: clamp(2rem, 4vw, 3rem);

  /* Typography */
  --ct-text-xs: clamp(0.6875rem, 0.5vw + 0.5rem, 0.75rem);
  --ct-text-sm: clamp(0.75rem, 0.5vw + 0.55rem, 0.875rem);
  --ct-text-base: clamp(0.875rem, 0.5vw + 0.65rem, 1rem);
  --ct-text-lg: clamp(1rem, 0.5vw + 0.75rem, 1.125rem);
  --ct-text-xl: clamp(1.125rem, 0.75vw + 0.8rem, 1.25rem);
  --ct-text-2xl: clamp(1.25rem, 1vw + 0.8rem, 1.5rem);
  --ct-text-3xl: clamp(1.5rem, 1.5vw + 0.8rem, 1.875rem);
  --ct-text-4xl: clamp(1.875rem, 2vw + 0.8rem, 2.25rem);

  /* Shadows — purple-tinted like ClassCards */
  --ct-shadow-sm: 0 1px 2px rgba(93, 76, 154, 0.06);
  --ct-shadow-md: 0 4px 12px rgba(93, 76, 154, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  --ct-shadow-lg: 0 8px 24px rgba(93, 76, 154, 0.12), 0 4px 8px rgba(0, 0, 0, 0.04);
  --ct-shadow-xl: 0 16px 40px rgba(93, 76, 154, 0.15), 0 8px 16px rgba(0, 0, 0, 0.06);

  /* Radius */
  --ct-radius-sm: 6px;
  --ct-radius-md: 8px;
  --ct-radius-lg: 12px;
  --ct-radius-xl: 16px;

  /* Layout */
  --ct-nav-height: 4.5rem;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --ct-primary: #7A6BB5;
  --ct-primary-light: #9B8FCC;
  --ct-primary-dark: #5D4C9A;
  --ct-primary-bg: #1E1533;
  --ct-accent: #e0a820;
  --ct-success: #4ADE80;
  --ct-warning: #FBBF24;
  --ct-danger: #F87171;

  --ct-bg: #212121;
  --ct-card-bg: #303030;
  --ct-text-primary: #F1F5F9;
  --ct-text-secondary: #94A3B8;
  --ct-text-muted: #64748B;
  --ct-border: rgba(255, 255, 255, 0.12);
  --ct-bg-hover: #3a3a3a;

  --ct-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --ct-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.3);
  --ct-shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.5), 0 4px 8px rgba(0, 0, 0, 0.3);
  --ct-shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6), 0 8px 16px rgba(0, 0, 0, 0.3);
}

/* --- Base Styles --- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--ct-text-base);
  line-height: 1.6;
  color: var(--ct-text-primary);
  background-color: var(--ct-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--ct-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

/* --- Container --- */
.ct-container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--ct-space-lg);
  padding-right: var(--ct-space-lg);
}

/* --- Card --- */
.ct-card {
  background: var(--ct-card-bg);
  border: none;
  border-radius: var(--ct-radius-lg);
  box-shadow: 0 4px 20px rgba(93, 76, 154, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
  padding: 1.25rem;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.ct-card:hover {
  box-shadow: 0 8px 32px rgba(93, 76, 154, 0.12), 0 4px 16px rgba(0, 0, 0, 0.06);
}

.ct-card + .ct-card {
  margin-top: var(--ct-space-lg);
}

/* --- Buttons --- */
.ct-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.25;
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-md);
  background: var(--ct-card-bg);
  color: var(--ct-text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  text-decoration: none;
}

.ct-btn:hover {
  background: var(--ct-bg-hover, var(--ct-bg));
  border-color: var(--ct-border);
  text-decoration: none;
}

.ct-btn:focus-visible {
  outline: 2px solid var(--ct-primary);
  outline-offset: 2px;
}

.ct-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ct-btn-primary {
  background: var(--ct-gradient);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(93, 76, 154, 0.25);
}

.ct-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(93, 76, 154, 0.35);
}

.ct-btn-secondary {
  background: var(--ct-primary-bg);
  color: var(--ct-primary);
  border-color: var(--ct-primary-bg);
}

.ct-btn-secondary:hover {
  background: #DDD6F0;
  border-color: #DDD6F0;
}

.ct-btn-danger {
  background: var(--ct-danger);
  color: #FFFFFF;
  border-color: var(--ct-danger);
}

.ct-btn-danger:hover {
  background: #B91C1C;
  border-color: #B91C1C;
  transform: translateY(-1px);
}

.ct-btn-warning {
  background: var(--ct-warning);
  color: #FFFFFF;
  border-color: var(--ct-warning);
}

.ct-btn-warning:hover {
  opacity: 0.9;
}

.ct-btn-outline {
  background: transparent;
  color: var(--ct-primary);
  border-color: var(--ct-primary);
}

.ct-btn-outline:hover {
  background: var(--ct-primary-bg);
}

.ct-btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: var(--ct-text-xs);
}

.ct-btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: var(--ct-text-lg);
}

/* --- Form Elements --- */
.ct-label {
  display: block;
  font-size: var(--ct-text-sm);
  font-weight: 500;
  color: var(--ct-text-primary);
  margin-bottom: 0.375rem;
}

.ct-input,
.ct-select,
.ct-textarea {
  display: block;
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-family: inherit;
  font-size: var(--ct-text-base);
  line-height: 1.5;
  color: var(--ct-text-primary);
  background: var(--ct-card-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-md);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.ct-input:focus,
.ct-select:focus,
.ct-textarea:focus {
  outline: none;
  border-color: var(--ct-primary);
  box-shadow: 0 0 0 3px rgba(93, 76, 154, 0.15);
}

.ct-input::placeholder,
.ct-textarea::placeholder {
  color: var(--ct-text-secondary);
}

.ct-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8.825a.7.7 0 0 1-.5-.2L2.2 5.3a.7.7 0 0 1 1-1L6 7.125 8.8 4.3a.7.7 0 1 1 1 1L6.5 8.625a.7.7 0 0 1-.5.2z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

.ct-textarea {
  min-height: 6rem;
  resize: vertical;
}

.ct-form-group {
  margin-bottom: var(--ct-space-lg);
}

/* --- Navbar --- */
.ct-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--ct-nav-height);
  display: flex;
  align-items: center;
  background: var(--ct-gradient-dark);
  color: #FFFFFF;
  padding: 0 var(--ct-space-lg);
}

.ct-navbar-brand {
  font-size: var(--ct-text-xl);
  font-weight: 700;
  color: #FFFFFF;
  text-decoration: none;
  margin-right: var(--ct-space-xl);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ct-navbar-brand:hover {
  color: #FFFFFF;
  text-decoration: none;
}

.ct-navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--ct-space-xs);
  list-style: none;
  margin: 0;
  padding: 0;
}

.ct-navbar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--ct-text-sm);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--ct-radius-sm);
  transition: background 0.15s ease, color 0.15s ease;
}

.ct-navbar-link:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
  text-decoration: none;
}

.ct-navbar-link.active {
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  text-decoration: none;
}

.ct-navbar-inner {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
}

.ct-navbar-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  color: rgba(255, 255, 255, 0.95);
}

.ct-navbar-title {
  font-weight: 700;
  letter-spacing: -0.5px;
}

.ct-navbar-links {
  display: flex;
  align-items: center;
  gap: var(--ct-space-xs);
}

.ct-navbar-right {
  display: flex;
  align-items: center;
  gap: var(--ct-space-sm);
  margin-left: auto;
}

.ct-navbar-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ct-navbar-username {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--ct-text-sm);
  font-weight: 500;
}

.ct-navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  margin-left: var(--ct-space-sm);
}

.ct-navbar-toggle span {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: #FFFFFF;
  margin: 4px 0;
  border-radius: 1px;
}

.ct-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.875rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
  border-radius: var(--ct-radius-sm);
  font-size: var(--ct-text-sm);
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
}

.ct-nav-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  text-decoration: none;
}

.ct-navbar-spacer {
  height: var(--ct-nav-height);
}

.ct-navbar-end {
  display: flex;
  align-items: center;
  gap: var(--ct-space-sm);
  margin-left: auto;
}

/* --- Avatar --- */
.ct-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  font-weight: 600;
  font-size: var(--ct-text-base);
}

.ct-avatar-sm {
  width: 2rem;
  height: 2rem;
  font-size: var(--ct-text-sm);
}

/* --- Theme Toggle --- */
.ct-btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--ct-radius-md);
  transition: background 0.15s ease;
}

.ct-btn-icon:hover {
  background: rgba(255, 255, 255, 0.15);
}

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

/* --- Auth Pages --- */
.ct-auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--ct-nav-height) - 4rem);
  padding: var(--ct-space-xl) var(--ct-space-lg);
}

.ct-auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--ct-card-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-xl);
  box-shadow: var(--ct-shadow-lg);
  padding: var(--ct-space-2xl);
}

.ct-auth-header {
  text-align: center;
  margin-bottom: var(--ct-space-xl);
}

.ct-auth-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  background: var(--ct-primary);
  color: #FFFFFF;
  border-radius: var(--ct-radius-lg);
  font-weight: 700;
  font-size: var(--ct-text-xl);
  margin-bottom: var(--ct-space-md);
}

.ct-auth-header h1 {
  font-size: var(--ct-text-2xl);
  font-weight: 700;
  margin: 0 0 0.25rem 0;
  color: var(--ct-text-primary);
}

.ct-auth-header p {
  color: var(--ct-text-secondary);
  margin: 0;
  font-size: var(--ct-text-sm);
}

.ct-auth-footer {
  text-align: center;
  margin-top: var(--ct-space-lg);
  padding-top: var(--ct-space-lg);
  border-top: 1px solid var(--ct-border);
  font-size: var(--ct-text-sm);
  color: var(--ct-text-secondary);
}

.ct-auth-footer p {
  margin: 0;
}

/* --- Form Helpers --- */
.ct-form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--ct-space-lg);
  font-size: var(--ct-text-sm);
}

.ct-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: var(--ct-text-sm);
  color: var(--ct-text-primary);
}

.ct-checkbox-label input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--ct-primary);
}

.ct-link {
  color: var(--ct-primary);
  text-decoration: none;
  font-weight: 500;
}

.ct-link:hover {
  text-decoration: underline;
  color: var(--ct-primary-dark);
}

/* --- Alerts --- */
.ct-alert {
  padding: var(--ct-space-md) var(--ct-space-lg);
  border-radius: var(--ct-radius-md);
  border: 1px solid var(--ct-border);
  background: var(--ct-card-bg);
  color: var(--ct-text-primary);
  font-size: var(--ct-text-sm);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: var(--ct-space-md);
}

.ct-alert-success {
  background: #F0FDF4;
  border-color: #BBF7D0;
  color: #166534;
}

.ct-alert-warning {
  background: #FFFBEB;
  border-color: #FDE68A;
  color: #92400E;
}

.ct-alert-danger {
  background: #FEF2F2;
  border-color: #FECACA;
  color: #991B1B;
}

.ct-alert-info {
  background: #EFF6FF;
  border-color: #BFDBFE;
  color: #1E40AF;
}

[data-theme="dark"] .ct-alert-success {
  background: rgba(22, 163, 74, 0.15);
  border-color: rgba(22, 163, 74, 0.3);
  color: #4ADE80;
}

[data-theme="dark"] .ct-alert-warning {
  background: rgba(217, 119, 6, 0.15);
  border-color: rgba(217, 119, 6, 0.3);
  color: #FBBF24;
}

[data-theme="dark"] .ct-alert-danger {
  background: rgba(220, 38, 38, 0.15);
  border-color: rgba(220, 38, 38, 0.3);
  color: #F87171;
}

[data-theme="dark"] .ct-alert-info {
  background: rgba(37, 99, 235, 0.15);
  border-color: rgba(37, 99, 235, 0.3);
  color: #60A5FA;
}

/* --- Badges --- */
.ct-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.625rem;
  font-size: var(--ct-text-xs);
  font-weight: 600;
  border-radius: 9999px;
  background: var(--ct-bg);
  color: var(--ct-text-secondary);
  border: 1px solid var(--ct-border);
}

.ct-badge-success {
  background: #DCFCE7;
  color: #166534;
  border-color: #BBF7D0;
}

.ct-badge-warning {
  background: #FEF3C7;
  color: #92400E;
  border-color: #FDE68A;
}

.ct-badge-danger {
  background: #FEE2E2;
  color: #991B1B;
  border-color: #FECACA;
}

[data-theme="dark"] .ct-badge-success {
  background: rgba(22, 163, 74, 0.2);
  color: #4ADE80;
  border-color: rgba(22, 163, 74, 0.35);
}

[data-theme="dark"] .ct-badge-warning {
  background: rgba(217, 119, 6, 0.2);
  color: #FBBF24;
  border-color: rgba(217, 119, 6, 0.35);
}

[data-theme="dark"] .ct-badge-danger {
  background: rgba(220, 38, 38, 0.2);
  color: #F87171;
  border-color: rgba(220, 38, 38, 0.35);
}

/* --- Table --- */
.ct-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--ct-radius-lg);
  border: 1px solid var(--ct-border);
}

.ct-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--ct-text-sm);
}

.ct-table th,
.ct-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--ct-border);
}

.ct-table th {
  font-weight: 600;
  color: var(--ct-text-secondary);
  background: var(--ct-bg);
  font-size: var(--ct-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.ct-table tbody tr:hover {
  background: var(--ct-primary-bg);
}

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

[data-theme="dark"] .ct-table tbody tr:hover {
  background: rgba(45, 157, 111, 0.08);
}

/* --- Modal --- */
.ct-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--ct-space-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.ct-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.ct-modal {
  background: var(--ct-card-bg);
  border-radius: var(--ct-radius-xl);
  box-shadow: var(--ct-shadow-xl);
  width: 100%;
  max-width: 32rem;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(10px);
  transition: transform 0.2s ease;
}

.ct-modal-overlay.active .ct-modal {
  transform: translateY(0);
}

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

.ct-modal-header h3 {
  margin: 0;
  font-size: var(--ct-text-lg);
  font-weight: 600;
}

.ct-modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: none;
  background: transparent;
  color: var(--ct-text-secondary);
  border-radius: var(--ct-radius-sm);
  cursor: pointer;
  font-size: 1.25rem;
}

.ct-modal-close:hover {
  background: var(--ct-bg);
  color: var(--ct-text-primary);
}

.ct-modal-body {
  padding: var(--ct-space-xl);
}

.ct-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: var(--ct-space-lg) var(--ct-space-xl);
  border-top: 1px solid var(--ct-border);
}

/* --- Tabs --- */
.ct-tabs {
  display: flex;
  border-bottom: 2px solid var(--ct-border);
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.ct-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.75rem 1.25rem;
  font-family: inherit;
  font-size: var(--ct-text-sm);
  font-weight: 500;
  color: var(--ct-text-secondary);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s ease, border-color 0.15s ease;
}

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

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

/* --- Empty State --- */
.ct-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--ct-space-2xl) var(--ct-space-lg);
  text-align: center;
}

.ct-empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--ct-space-lg);
  opacity: 0.4;
}

.ct-empty-state h3 {
  margin: 0 0 0.5rem;
  font-size: var(--ct-text-lg);
  font-weight: 600;
  color: var(--ct-text-primary);
}

.ct-empty-state p {
  margin: 0 0 var(--ct-space-lg);
  font-size: var(--ct-text-sm);
  color: var(--ct-text-secondary);
  max-width: 24rem;
}

/* --- Stats Grid --- */
.ct-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--ct-space-lg);
}

.ct-stat-card {
  background: var(--ct-card-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-lg);
  padding: var(--ct-space-lg);
  box-shadow: var(--ct-shadow-sm);
}

.ct-stat-card-icon {
  color: var(--ct-primary);
  margin-bottom: var(--ct-space-sm);
}

.ct-stat-card-label {
  font-size: var(--ct-text-xs);
  font-weight: 500;
  color: var(--ct-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.ct-stat-card-number {
  font-size: var(--ct-text-3xl);
  font-weight: 700;
  color: var(--ct-text-primary);
  line-height: 1.2;
}

.ct-stat-card-sub {
  font-size: var(--ct-text-xs);
  color: var(--ct-text-secondary);
  margin-top: 0.25rem;
}

/* --- Page Header --- */
.ct-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--ct-space-md);
  margin-bottom: var(--ct-space-xl);
}

.ct-page-header h1 {
  margin: 0;
  font-size: var(--ct-text-2xl);
  font-weight: 700;
  color: var(--ct-text-primary);
}

.ct-page-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* --- Sidebar Layout --- */
.ct-sidebar-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - var(--ct-nav-height));
}

.ct-sidebar {
  background: var(--ct-card-bg);
  border-right: 1px solid var(--ct-border);
  padding: var(--ct-space-lg);
  position: sticky;
  top: var(--ct-nav-height);
  height: calc(100vh - var(--ct-nav-height));
  overflow-y: auto;
}

.ct-sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ct-sidebar-nav-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  font-size: var(--ct-text-sm);
  color: var(--ct-text-secondary);
  text-decoration: none;
  border-radius: var(--ct-radius-md);
  transition: background 0.15s ease, color 0.15s ease;
}

.ct-sidebar-nav-link:hover {
  background: var(--ct-bg);
  color: var(--ct-text-primary);
  text-decoration: none;
}

.ct-sidebar-nav-link.active {
  background: var(--ct-primary-bg);
  color: var(--ct-primary);
  font-weight: 500;
}

.ct-sidebar-main {
  padding: var(--ct-space-xl);
}

/* --- Dropdown --- */
.ct-dropdown {
  position: relative;
  display: inline-block;
}

.ct-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  z-index: 1100;
  min-width: 12rem;
  margin-top: 0.375rem;
  background: var(--ct-card-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-md);
  box-shadow: var(--ct-shadow-lg);
  padding: 0.375rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
}

.ct-dropdown.open .ct-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.ct-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-family: inherit;
  font-size: var(--ct-text-sm);
  color: var(--ct-text-primary);
  background: none;
  border: none;
  border-radius: var(--ct-radius-sm);
  cursor: pointer;
  text-decoration: none;
  text-align: left;
}

.ct-dropdown-item:hover {
  background: var(--ct-bg);
  text-decoration: none;
}

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

.ct-dropdown-divider {
  height: 1px;
  background: var(--ct-border);
  margin: 0.375rem 0;
}

/* --- Tooltip --- */
.ct-tooltip {
  position: relative;
}

.ct-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: 0.375rem 0.75rem;
  font-size: var(--ct-text-xs);
  font-weight: 500;
  color: #FFFFFF;
  background: var(--ct-text-primary);
  border-radius: var(--ct-radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
  z-index: 1200;
}

.ct-tooltip:hover::after {
  opacity: 1;
}

/* --- Progress Bar --- */
.ct-progress-bar {
  width: 100%;
  height: 0.5rem;
  background: var(--ct-border);
  border-radius: 9999px;
  overflow: hidden;
}

.ct-progress-bar-fill {
  height: 100%;
  background: var(--ct-primary);
  border-radius: 9999px;
  transition: width 0.3s ease;
}

.ct-progress-bar-fill.success {
  background: var(--ct-success);
}

.ct-progress-bar-fill.warning {
  background: var(--ct-warning);
}

.ct-progress-bar-fill.danger {
  background: var(--ct-danger);
}

/* --- Avatar --- */
.ct-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  background: var(--ct-primary);
  color: #FFFFFF;
  font-size: var(--ct-text-sm);
  font-weight: 600;
  flex-shrink: 0;
}

.ct-avatar-sm {
  width: 2rem;
  height: 2rem;
  font-size: var(--ct-text-xs);
}

.ct-avatar-lg {
  width: 3rem;
  height: 3rem;
  font-size: var(--ct-text-base);
}

/* --- Breadcrumb --- */
.ct-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  margin: 0 0 var(--ct-space-lg);
  padding: 0;
  font-size: var(--ct-text-sm);
}

.ct-breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ct-text-secondary);
}

.ct-breadcrumb li + li::before {
  content: '/';
  color: var(--ct-border);
}

.ct-breadcrumb a {
  color: var(--ct-text-secondary);
  text-decoration: none;
}

.ct-breadcrumb a:hover {
  color: var(--ct-primary);
  text-decoration: underline;
}

.ct-breadcrumb li:last-child {
  color: var(--ct-text-primary);
  font-weight: 500;
}

/* --- Pagination --- */
.ct-pagination {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: var(--ct-space-xl) 0 0;
  padding: 0;
}

.ct-pagination-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.5rem;
  font-family: inherit;
  font-size: var(--ct-text-sm);
  font-weight: 500;
  color: var(--ct-text-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--ct-radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
}

.ct-pagination-item:hover {
  background: var(--ct-bg);
  color: var(--ct-text-primary);
  text-decoration: none;
}

.ct-pagination-item.active {
  background: var(--ct-primary);
  color: #FFFFFF;
  border-color: var(--ct-primary);
}

.ct-pagination-item:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* --- Browser-Warnung --- */
.ct-browser-warning {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--ct-danger);
  color: #fff;
  font-size: var(--ct-text-sm);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
}

.ct-browser-warning-soft {
  background: var(--ct-warning);
  color: #1E293B;
}

/* --- Systemanforderungen-Sektion --- */
.ct-browser-compat {
  padding: var(--ct-space-2xl) 0;
  background: var(--ct-bg);
}

.ct-browser-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--ct-space-lg);
  margin-top: var(--ct-space-xl);
}

.ct-browser-item {
  text-align: center;
  padding: var(--ct-space-lg);
  background: var(--ct-card-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-lg);
}

.ct-browser-item-icon {
  font-size: 2.5rem;
  margin-bottom: var(--ct-space-sm);
}

.ct-browser-item-name {
  font-weight: 600;
  font-size: var(--ct-text-sm);
  color: var(--ct-text-primary);
}

.ct-browser-item-version {
  font-size: var(--ct-text-xs);
  color: var(--ct-text-secondary);
  margin-top: 0.125rem;
}

.ct-browser-item.not-supported {
  opacity: 0.5;
  text-decoration: line-through;
}

.ct-browser-item.not-supported .ct-browser-item-name {
  color: var(--ct-danger);
}

.ct-browser-notes {
  margin-top: var(--ct-space-xl);
  padding: var(--ct-space-lg);
  background: var(--ct-card-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-lg);
  font-size: var(--ct-text-sm);
  color: var(--ct-text-secondary);
  line-height: 1.8;
}

.ct-browser-notes strong {
  color: var(--ct-text-primary);
}

/* ============================================
   Utility Classes
   ============================================ */

/* Text alignment */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

/* Margins */
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Flexbox */
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }

/* Visibility */
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Text colors */
.text-success { color: var(--ct-success); }
.text-warning { color: var(--ct-warning); }
.text-danger { color: var(--ct-danger); }

/* Width */
.w-full { width: 100%; }

/* ============================================
   Responsive
   ============================================ */

/* Small: >= 640px */
@media (max-width: 639px) {
  .ct-navbar {
    padding: 0 var(--ct-space-md);
  }

  .ct-navbar-links {
    display: none;
  }

  .ct-navbar-username {
    display: none;
  }

  .ct-navbar-toggle {
    display: block;
  }

  .ct-navbar-nav {
    display: none;
  }

  .ct-auth-card {
    padding: var(--ct-space-lg);
  }

  .ct-sidebar-layout {
    grid-template-columns: 1fr;
  }

  .ct-sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--ct-border);
  }

  .ct-page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .ct-stats-grid {
    grid-template-columns: 1fr;
  }

  .ct-modal {
    max-width: 100%;
    border-radius: var(--ct-radius-lg);
  }
}

/* Medium: >= 768px */
@media (min-width: 768px) {
  .ct-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Large: >= 1024px */
@media (min-width: 1024px) {
  .ct-stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================
   Landing Page
   ============================================ */

.ct-landing {
  overflow-x: hidden;
}

/* --- Buttons --- */
.ct-landing-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.75rem;
  font-family: inherit;
  font-size: var(--ct-text-base);
  font-weight: 600;
  border-radius: var(--ct-radius-md);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s ease;
}

.ct-landing-btn:hover { text-decoration: none; }

.ct-landing-btn-accent {
  background: var(--ct-accent);
  color: #1a1a1a;
  border-color: var(--ct-accent);
}
.ct-landing-btn-accent:hover {
  background: #c99418;
  border-color: #c99418;
  color: #1a1a1a;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(224, 168, 32, 0.35);
}

.ct-landing-btn-primary {
  background: var(--ct-primary);
  color: #fff;
  border-color: var(--ct-primary);
}
.ct-landing-btn-primary:hover {
  background: var(--ct-primary-dark);
  border-color: var(--ct-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--ct-shadow-md);
}

.ct-landing-btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.45);
}
.ct-landing-btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.7);
  color: #fff;
}

.ct-landing-btn-ghost-dark {
  background: transparent;
  color: var(--ct-text-primary);
  border-color: var(--ct-border);
}
.ct-landing-btn-ghost-dark:hover {
  background: var(--ct-bg-hover);
  border-color: var(--ct-text-muted);
  color: var(--ct-text-primary);
}

/* --- Hero --- */
.ct-landing-hero {
  background: var(--ct-gradient);
  padding: clamp(4.5rem, 10vw, 8rem) 0 clamp(4rem, 8vw, 7rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ct-landing-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.ct-landing-star {
  position: absolute;
  color: rgba(255,255,255,0.12);
  font-size: clamp(1rem, 2.5vw, 1.8rem);
  animation: ct-landing-float 6s ease-in-out infinite alternate;
}
.ct-landing-star:nth-child(2) { animation-delay: -1.5s; }
.ct-landing-star:nth-child(3) { animation-delay: -3s; }
.ct-landing-star:nth-child(4) { animation-delay: -4.2s; font-size: 0.9rem; }
.ct-landing-star:nth-child(5) { animation-delay: -5s; }

@keyframes ct-landing-float {
  from { transform: translateY(0); }
  to   { transform: translateY(-12px); }
}

.ct-landing-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 660px;
  margin: 0 auto;
}

.ct-landing-hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin: 0 0 1.75rem;
  letter-spacing: -0.025em;
}

.ct-landing-hero-benefits {
  list-style: none;
  padding: 0;
  margin: 0 0 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ct-landing-hero-benefits li {
  color: rgba(255,255,255,0.88);
  font-size: var(--ct-text-lg);
  font-weight: 500;
}

.ct-landing-hero-benefits li::before {
  content: '✓ ';
  color: var(--ct-accent);
  font-weight: 700;
}

.ct-landing-hero-actions {
  display: flex;
  gap: 0.875rem;
  justify-content: center;
  flex-wrap: wrap;
}

.ct-landing-hero-link {
  display: inline-block;
  margin-top: 1.5rem;
  color: rgba(255,255,255,0.6);
  font-size: var(--ct-text-sm);
  transition: color 0.2s;
}
.ct-landing-hero-link:hover {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
}

/* --- Sections --- */
.ct-landing-section {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}

.ct-landing-section-alt {
  background: var(--ct-card-bg);
}

.ct-landing-heading {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--ct-text-primary);
  text-align: center;
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}

.ct-landing-subheading {
  font-size: var(--ct-text-base);
  color: var(--ct-text-secondary);
  text-align: center;
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
}

/* --- Steps (4 Schritte) --- */
.ct-landing-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--ct-space-xl);
  margin-top: 2.5rem;
}

.ct-landing-step {
  text-align: center;
}

.ct-landing-step-num {
  width: 2.5rem;
  height: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ct-primary);
  color: #fff;
  font-size: var(--ct-text-lg);
  font-weight: 700;
  border-radius: 50%;
  margin: 0 auto 1rem;
}

.ct-landing-step h3 {
  font-size: var(--ct-text-base);
  font-weight: 600;
  color: var(--ct-text-primary);
  margin: 0 0 0.375rem;
}

.ct-landing-step p {
  font-size: var(--ct-text-sm);
  color: var(--ct-text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* --- Features --- */
.ct-landing-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--ct-space-lg);
  margin-top: 0.5rem;
}

.ct-landing-feature {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.ct-landing-feature-icon {
  width: 2.75rem;
  height: 2.75rem;
  min-width: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ct-primary-bg);
  color: var(--ct-primary);
  border-radius: var(--ct-radius-md);
}

.ct-landing-feature h3 {
  font-size: var(--ct-text-base);
  font-weight: 600;
  color: var(--ct-text-primary);
  margin: 0 0 0.25rem;
}

.ct-landing-feature p {
  font-size: var(--ct-text-sm);
  color: var(--ct-text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* --- Split (Code-Beitritt) --- */
.ct-landing-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.ct-landing-split-desc {
  font-size: var(--ct-text-base);
  color: var(--ct-text-secondary);
  line-height: 1.7;
  margin: 0 0 1.25rem;
}

.ct-landing-checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.ct-landing-checklist li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--ct-text-base);
  color: var(--ct-text-primary);
  font-weight: 500;
}

.ct-landing-check {
  color: var(--ct-success);
  font-weight: 700;
  font-size: 1.1em;
}

.ct-landing-split-visual {
  display: flex;
  justify-content: center;
}

/* Mockup */
.ct-landing-mockup {
  background: var(--ct-card-bg);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius-xl);
  box-shadow: var(--ct-shadow-xl);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  width: 100%;
  max-width: 320px;
  text-align: center;
}

.ct-landing-mockup-title {
  font-size: var(--ct-text-base);
  font-weight: 600;
  color: var(--ct-text-primary);
  margin-bottom: 1.5rem;
}

.ct-landing-mockup-digits {
  display: flex;
  gap: 0.4rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.ct-landing-mockup-digits span {
  width: 2.5rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--ct-text-xl);
  font-weight: 700;
  color: var(--ct-text-primary);
  background: var(--ct-bg);
  border: 2px solid var(--ct-border);
  border-radius: var(--ct-radius-sm);
}

.ct-landing-mockup-digits span.active {
  border-color: var(--ct-primary);
  box-shadow: 0 0 0 3px rgba(93, 76, 154, 0.15);
}

.ct-landing-mockup-btn {
  display: block;
  width: 100%;
  padding: 0.7rem;
  background: var(--ct-gradient);
  color: #fff;
  font-size: var(--ct-text-sm);
  font-weight: 600;
  border-radius: var(--ct-radius-md);
  text-align: center;
}

/* --- Compare Table --- */
.ct-landing-compare {
  max-width: 700px;
  margin: 2rem auto 0;
  overflow-x: auto;
  border-radius: var(--ct-radius-lg);
  border: 1px solid var(--ct-border);
  box-shadow: var(--ct-shadow-sm);
}

.ct-landing-compare table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--ct-text-sm);
}

.ct-landing-compare thead th {
  padding: 0.875rem 1.25rem;
  font-size: var(--ct-text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--ct-border);
  color: var(--ct-text-secondary);
  background: var(--ct-bg);
}

.ct-landing-compare thead th:first-child {
  text-align: left;
  width: 25%;
}

.ct-landing-compare-highlight {
  color: var(--ct-primary) !important;
  background: var(--ct-primary-bg) !important;
}

.ct-landing-compare tbody td {
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--ct-border);
  text-align: center;
  vertical-align: middle;
}

.ct-landing-compare tbody td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--ct-text-primary);
}

.ct-landing-compare tbody tr:last-child td {
  border-bottom: none;
}

.ct-landing-compare tbody td:last-child {
  background: rgba(93, 76, 154, 0.03);
}

.ct-landing-x {
  color: var(--ct-danger);
  font-weight: 700;
  margin-right: 0.25rem;
}

.ct-landing-ok {
  color: var(--ct-success);
  font-weight: 700;
  margin-right: 0.25rem;
}

/* --- Stats Banner --- */
.ct-landing-stats-banner {
  background: var(--ct-gradient);
  padding: clamp(2.5rem, 5vw, 3.5rem) 0;
  position: relative;
}

.ct-landing-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--ct-space-lg);
}

.ct-landing-stat {
  text-align: center;
}

.ct-landing-stat strong {
  display: block;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
}

.ct-landing-stat span {
  font-size: var(--ct-text-sm);
  color: rgba(255,255,255,0.72);
  font-weight: 500;
}

/* --- CTA --- */
.ct-landing-cta-section {
  text-align: center;
}

/* --- Browser section --- */
.ct-landing-browser-section {
  padding-bottom: clamp(2rem, 4vw, 3rem);
}

.ct-landing-browsers {
  display: flex;
  gap: var(--ct-space-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin: 1.5rem 0;
}

.ct-landing-browser-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.125rem;
  min-width: 5rem;
}

.ct-landing-browser-item strong {
  font-size: var(--ct-text-sm);
  color: var(--ct-text-primary);
}

.ct-landing-browser-item small {
  font-size: var(--ct-text-xs);
  color: var(--ct-text-secondary);
}

.ct-landing-browser-no strong {
  color: var(--ct-text-muted);
  text-decoration: line-through;
}

.ct-landing-browser-note {
  text-align: center;
  font-size: var(--ct-text-xs);
  color: var(--ct-text-secondary);
  line-height: 1.7;
  max-width: 600px;
  margin: 0.5rem auto 0;
}

/* ============================================
   Landing Page — Dark Mode
   ============================================ */
[data-theme="dark"] .ct-landing-hero {
  background: linear-gradient(135deg, #2D2254 0%, #4A3D7A 50%, #2D2254 100%);
}

[data-theme="dark"] .ct-landing-section-alt {
  background: var(--ct-bg);
}

[data-theme="dark"] .ct-landing-feature-icon {
  background: rgba(122, 107, 181, 0.15);
}

[data-theme="dark"] .ct-landing-compare-highlight {
  background: rgba(122, 107, 181, 0.15) !important;
}

[data-theme="dark"] .ct-landing-compare tbody td:last-child {
  background: rgba(122, 107, 181, 0.06);
}

[data-theme="dark"] .ct-landing-stats-banner {
  background: linear-gradient(135deg, #2D2254 0%, #4A3D7A 50%, #2D2254 100%);
}

[data-theme="dark"] .ct-landing-mockup {
  background: var(--ct-card-bg);
  border-color: var(--ct-border);
}

[data-theme="dark"] .ct-landing-mockup-digits span {
  background: var(--ct-bg);
  border-color: var(--ct-border);
}

/* ============================================
   Landing Page — Responsive
   ============================================ */
@media (max-width: 767px) {
  .ct-landing-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--ct-space-lg);
  }

  .ct-landing-features {
    grid-template-columns: 1fr;
  }

  .ct-landing-split {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .ct-landing-split-text .ct-landing-heading {
    text-align: center !important;
  }

  .ct-landing-checklist {
    align-items: center;
  }

  .ct-landing-split-text .ct-landing-btn {
    width: 100%;
    justify-content: center;
  }

  .ct-landing-stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--ct-space-lg);
  }

  .ct-landing-compare tbody td {
    font-size: var(--ct-text-xs);
    padding: 0.6rem 0.75rem;
  }

  .ct-landing-mockup-digits span {
    width: 2rem;
    height: 2.5rem;
    font-size: var(--ct-text-base);
  }
}

@media (max-width: 479px) {
  .ct-landing-steps {
    grid-template-columns: 1fr;
  }

  .ct-landing-hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .ct-landing-hero-actions .ct-landing-btn {
    width: 100%;
    max-width: 280px;
  }
}

@media (min-width: 1024px) {
  .ct-landing-features {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   Footer
   ============================================ */

.ct-footer {
  margin-top: auto;
  border-top: 1px solid var(--ct-border);
  background: var(--ct-card-bg);
  padding: var(--ct-space-sm) 0;
  font-size: var(--ct-text-xs);
  color: var(--ct-text-secondary);
}

.ct-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--ct-space-sm);
}

.ct-footer-brand {
  display: flex;
  align-items: center;
  gap: var(--ct-space-xs);
  font-weight: 600;
  font-size: var(--ct-text-xs);
  color: var(--ct-text-primary);
}

.ct-footer-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.ct-footer-links {
  display: flex;
  gap: var(--ct-space-lg);
}

.ct-footer-links a {
  color: var(--ct-text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.ct-footer-links a:hover {
  color: var(--ct-primary);
}

.ct-footer-copy {
  color: var(--ct-text-muted);
  font-size: var(--ct-text-xs);
}

@media (max-width: 639px) {
  .ct-footer-inner {
    flex-direction: column;
    text-align: center;
    gap: var(--ct-space-sm);
  }
}