/* ==========================================================================
   SIMULADOR EXAMEN DE CONDUCIR - DESIGN SYSTEM
   Version: 1.0.0
   Last updated: 2026-06-11
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. GOOGLE FONTS
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@600;700;800&display=swap');

/* --------------------------------------------------------------------------
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   -------------------------------------------------------------------------- */
:root {
  /* ---- Colors ---- */
  --color-base: #0a0e27;
  --color-surface: #111631;
  --color-surface-2: #1a1f42;
  --color-surface-3: #232952;
  --color-primary: #3b82f6;
  --color-primary-dark: #2563eb;
  --color-primary-light: #60a5fa;
  --color-success: #10b981;
  --color-success-dark: #059669;
  --color-success-light: #34d399;
  --color-warning: #f59e0b;
  --color-warning-dark: #d97706;
  --color-danger: #ef4444;
  --color-danger-dark: #dc2626;
  --color-text: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-glass: rgba(255, 255, 255, 0.05);
  --color-glass-border: rgba(255, 255, 255, 0.1);
  --color-glass-hover: rgba(255, 255, 255, 0.08);

  /* ---- Typography ---- */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Fluid type scale */
  --text-xs: clamp(0.7rem, 0.66rem + 0.2vw, 0.8rem);
  --text-sm: clamp(0.8rem, 0.76rem + 0.2vw, 0.875rem);
  --text-base: clamp(0.9rem, 0.85rem + 0.25vw, 1rem);
  --text-lg: clamp(1rem, 0.93rem + 0.35vw, 1.125rem);
  --text-xl: clamp(1.15rem, 1.05rem + 0.5vw, 1.25rem);
  --text-2xl: clamp(1.35rem, 1.2rem + 0.75vw, 1.5rem);
  --text-3xl: clamp(1.6rem, 1.35rem + 1.25vw, 1.875rem);
  --text-4xl: clamp(1.9rem, 1.5rem + 2vw, 2.25rem);
  --text-5xl: clamp(2.2rem, 1.6rem + 3vw, 3rem);
  --text-6xl: clamp(2.6rem, 1.8rem + 4vw, 3.75rem);

  /* ---- Spacing (0.25rem base) ---- */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 1.75rem;
  --space-8: 2rem;
  --space-9: 2.25rem;
  --space-10: 2.5rem;
  --space-11: 2.75rem;
  --space-12: 3rem;
  --space-13: 3.25rem;
  --space-14: 3.5rem;
  --space-15: 3.75rem;
  --space-16: 4rem;
  --space-17: 4.25rem;
  --space-18: 4.5rem;
  --space-19: 4.75rem;
  --space-20: 5rem;

  /* ---- Border Radius ---- */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* ---- Shadows ---- */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow-primary: 0 0 20px rgba(59, 130, 246, 0.3);
  --shadow-glow-success: 0 0 20px rgba(16, 185, 129, 0.3);
  --shadow-glow-warning: 0 0 20px rgba(245, 158, 11, 0.3);
  --shadow-glow-danger: 0 0 20px rgba(239, 68, 68, 0.3);

  /* ---- Transitions ---- */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  --transition-spring: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ---- Z-Index Scale ---- */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* ---- Container ---- */
  --container-max: 80rem;
  --container-padding: clamp(1rem, 3vw, 2rem);
}

/* --------------------------------------------------------------------------
   2. CSS RESET & BASE
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-base);
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(16, 185, 129, 0.05) 0%, transparent 70%);
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

ul,
ol {
  list-style: none;
}

hr {
  border: none;
  border-top: 1px solid var(--color-surface-3);
  margin: var(--space-8) 0;
}

/* --------------------------------------------------------------------------
   3. CUSTOM SCROLLBAR
   -------------------------------------------------------------------------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-base);
}

::-webkit-scrollbar-thumb {
  background: var(--color-surface-3);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-base);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-surface-3) var(--color-base);
}

/* --------------------------------------------------------------------------
   4. SELECTION
   -------------------------------------------------------------------------- */
::selection {
  background-color: rgba(59, 130, 246, 0.35);
  color: var(--color-text);
}

::-moz-selection {
  background-color: rgba(59, 130, 246, 0.35);
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   5. TYPOGRAPHY
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--text-6xl);
  font-weight: 800;
  line-height: 1.1;
}

h2 {
  font-size: var(--text-5xl);
  font-weight: 700;
}

h3 {
  font-size: var(--text-4xl);
  font-weight: 700;
}

h4 {
  font-size: var(--text-3xl);
  font-weight: 600;
}

h5 {
  font-size: var(--text-2xl);
  font-weight: 600;
}

h6 {
  font-size: var(--text-xl);
  font-weight: 600;
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

strong, b {
  font-weight: 600;
  color: var(--color-text);
}

small {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-success) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2);
}

.section-subtitle {
  text-align: center;
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 38rem;
  margin: 0 auto var(--space-12);
}

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary-light);
  margin-bottom: var(--space-3);
}

/* --------------------------------------------------------------------------
   6. LAYOUT: CONTAINER & GRID
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: clamp(3rem, 6vw, 6rem) 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: var(--space-6);
}

@media (min-width: 480px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* --------------------------------------------------------------------------
   7. BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast);
  user-select: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

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

.btn:active {
  transform: scale(0.97);
}

.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary - Green CTA */
.btn-primary {
  background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-dark) 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-success-light) 0%, var(--color-success) 100%);
  box-shadow: 0 6px 24px rgba(16, 185, 129, 0.45);
  transform: translateY(-2px);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(0) scale(0.97);
}

/* Secondary - Blue */
.btn-secondary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.25);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  box-shadow: 0 6px 24px rgba(59, 130, 246, 0.4);
  transform: translateY(-2px);
  color: #fff;
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-glass-border);
}

.btn-ghost:hover {
  background: var(--color-glass-hover);
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Danger */
.btn-danger {
  background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-dark) 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover {
  box-shadow: 0 6px 24px rgba(239, 68, 68, 0.4);
  transform: translateY(-2px);
  color: #fff;
}

/* Sizes */
.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: var(--text-lg);
  border-radius: var(--radius-xl);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-icon {
  padding: 0.625rem;
  border-radius: var(--radius-md);
}

.btn-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* Button ripple shimmer */
.btn-primary::after,
.btn-secondary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    transparent
  );
  transition: left 0.6s ease;
}

.btn-primary:hover::after,
.btn-secondary:hover::after {
  left: 100%;
}

/* --------------------------------------------------------------------------
   8. CARDS
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.card-solid {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-3);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.card-interactive {
  background: var(--color-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  cursor: pointer;
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.card-interactive:hover {
  background: var(--color-glass-hover);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-featured {
  background: var(--color-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  position: relative;
  box-shadow:
    0 0 30px rgba(59, 130, 246, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.card-featured::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-xl);
  padding: 1px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-success), var(--color-primary));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.5;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.card-featured:hover {
  box-shadow:
    0 0 40px rgba(59, 130, 246, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.card-featured:hover::before {
  opacity: 1;
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-body {
  flex: 1;
}

.card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-glass-border);
}

/* --------------------------------------------------------------------------
   9. FORMS
   -------------------------------------------------------------------------- */
.form-group {
  position: relative;
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  transition: color var(--transition-base);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-3);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base);
  appearance: none;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--color-text-muted);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
  background: var(--color-surface-2);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-textarea {
  min-height: 7rem;
  resize: vertical;
}

/* Floating label */
.form-floating {
  position: relative;
}

.form-floating .form-input,
.form-floating .form-textarea {
  padding-top: 1.5rem;
  padding-bottom: 0.4rem;
}

.form-floating .form-label {
  position: absolute;
  top: 50%;
  left: 1rem;
  transform: translateY(-50%);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  pointer-events: none;
  transition: all var(--transition-base);
  margin-bottom: 0;
}

.form-floating .form-textarea ~ .form-label {
  top: 1.2rem;
  transform: none;
}

.form-floating .form-input:focus ~ .form-label,
.form-floating .form-input:not(:placeholder-shown) ~ .form-label,
.form-floating .form-textarea:focus ~ .form-label,
.form-floating .form-textarea:not(:placeholder-shown) ~ .form-label {
  top: 0.5rem;
  transform: none;
  font-size: var(--text-xs);
  color: var(--color-primary-light);
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  padding: var(--space-2) 0;
}

.form-checkbox,
.form-radio {
  width: 1.25rem;
  height: 1.25rem;
  appearance: none;
  border: 2px solid var(--color-surface-3);
  background: var(--color-surface);
  cursor: pointer;
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.form-checkbox {
  border-radius: var(--radius-sm);
}

.form-radio {
  border-radius: 50%;
}

.form-checkbox:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.form-radio:checked {
  border-color: var(--color-primary);
  background: var(--color-surface);
  box-shadow: inset 0 0 0 4px var(--color-primary);
}

.form-checkbox:focus-visible,
.form-radio:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Error state */
.form-error .form-input,
.form-error .form-select,
.form-error .form-textarea {
  border-color: var(--color-danger);
}

.form-error .form-input:focus,
.form-error .form-select:focus,
.form-error .form-textarea:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-error-message {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-danger);
  margin-top: var(--space-1);
}

.form-help {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* --------------------------------------------------------------------------
   10. NAVIGATION
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) 0;
  transition:
    padding var(--transition-base),
    background var(--transition-base),
    backdrop-filter var(--transition-base);
}

.navbar.scrolled {
  padding: var(--space-2) 0;
  background: rgba(10, 14, 39, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-glass-border);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  transition: opacity var(--transition-base);
}

.nav-brand:hover {
  opacity: 0.85;
  color: var(--color-text);
}

.nav-brand__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-success));
  border-radius: var(--radius-md);
  color: #fff;
}

.nav-brand__icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.navbar__links {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition:
    color var(--transition-base),
    background var(--transition-base);
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-glass);
}

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

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-cta {
  display: none;
}

/* Hamburger */
.nav-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 2.5rem;
  height: 2.5rem;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 0;
  z-index: calc(var(--z-overlay) + 1);
}

.nav-hamburger__line {
  display: block;
  width: 1.5rem;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
}

.nav-hamburger.open .nav-hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open .nav-hamburger__line:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open .nav-hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.nav-mobile {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(85vw, 24rem);
  height: 100vh;
  background: var(--color-surface);
  border-left: 1px solid var(--color-surface-3);
  padding: 5rem var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: var(--z-overlay);
  transition: right var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}

.nav-mobile.open {
  right: 0;
}

.nav-mobile__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: calc(var(--z-overlay) - 1);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.nav-mobile__overlay.open {
  opacity: 1;
  visibility: visible;
}

.nav-mobile .nav-link {
  font-size: var(--text-lg);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
}

.nav-mobile .nav-link:hover {
  background: var(--color-surface-2);
}

.nav-mobile__cta {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-surface-3);
}

@media (min-width: 1024px) {
  .navbar__links {
    display: flex;
  }

  .nav-cta {
    display: inline-flex;
  }

  .nav-hamburger {
    display: none;
  }

  .nav-mobile,
  .nav-mobile__overlay {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   11. HERO
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 0 4rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(59, 130, 246, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 80% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse 40% 40% at 20% 60%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
  z-index: 0;
}

/* Floating particles via CSS */
.hero__particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero__particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(59, 130, 246, 0.4);
  border-radius: 50%;
  animation: float linear infinite;
}

.hero__particle:nth-child(1) { left: 10%; top: 20%; animation-duration: 8s; animation-delay: 0s; width: 3px; height: 3px; }
.hero__particle:nth-child(2) { left: 25%; top: 60%; animation-duration: 12s; animation-delay: -2s; width: 5px; height: 5px; background: rgba(16, 185, 129, 0.3); }
.hero__particle:nth-child(3) { left: 45%; top: 30%; animation-duration: 10s; animation-delay: -4s; width: 3px; height: 3px; }
.hero__particle:nth-child(4) { left: 65%; top: 70%; animation-duration: 9s; animation-delay: -1s; width: 6px; height: 6px; background: rgba(245, 158, 11, 0.25); }
.hero__particle:nth-child(5) { left: 80%; top: 40%; animation-duration: 11s; animation-delay: -3s; width: 4px; height: 4px; background: rgba(16, 185, 129, 0.3); }
.hero__particle:nth-child(6) { left: 90%; top: 15%; animation-duration: 7s; animation-delay: -5s; width: 3px; height: 3px; }
.hero__particle:nth-child(7) { left: 15%; top: 80%; animation-duration: 13s; animation-delay: -6s; width: 5px; height: 5px; background: rgba(245, 158, 11, 0.2); }
.hero__particle:nth-child(8) { left: 55%; top: 10%; animation-duration: 10s; animation-delay: -7s; width: 4px; height: 4px; background: rgba(59, 130, 246, 0.3); }

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 50rem;
  padding: 0 var(--container-padding);
}

.hero-title {
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.hero__stat {
  text-align: center;
}

.hero__stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-text);
}

.hero__stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Grid effect at bottom */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 12rem;
  background: linear-gradient(to top, var(--color-base) 0%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   12. PROVINCE GRID
   -------------------------------------------------------------------------- */
.province-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

@media (min-width: 480px) {
  .province-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .province-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
  }
}

@media (min-width: 1024px) {
  .province-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.province-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-2);
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text-secondary);
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.province-card:hover {
  background: var(--color-glass-hover);
  border-color: var(--color-primary);
  color: var(--color-text);
  box-shadow: var(--shadow-glow-primary);
  transform: translateY(-3px);
}

.province-card__icon {
  width: 2rem;
  height: 2rem;
  color: var(--color-primary-light);
}

.province-card__name {
  font-size: var(--text-sm);
  font-weight: 500;
  text-align: center;
  line-height: 1.2;
}

/* --------------------------------------------------------------------------
   13. FAQ ACCORDION
   -------------------------------------------------------------------------- */
.faq-list {
  max-width: 48rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    background var(--transition-base),
    border-color var(--transition-base);
}

.faq-item.active {
  background: var(--color-glass-hover);
  border-color: rgba(255, 255, 255, 0.15);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: color var(--transition-base);
}

.faq-question:hover {
  color: var(--color-primary-light);
}

.faq-question__icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}

.faq-item.active .faq-question__icon {
  transform: rotate(180deg);
  color: var(--color-primary-light);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow) cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer__inner {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* --------------------------------------------------------------------------
   14. TESTIMONIALS
   -------------------------------------------------------------------------- */
.testimonial-card {
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition:
    background var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.testimonial-card:hover {
  background: var(--color-glass-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.testimonial-card__stars {
  display: flex;
  gap: 2px;
  color: var(--color-warning);
}

.testimonial-card__stars svg {
  width: 1rem;
  height: 1rem;
  fill: currentColor;
}

.testimonial-card__quote {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-style: italic;
  flex: 1;
}

.testimonial-card__quote::before {
  content: '\201C';
  font-size: var(--text-3xl);
  color: var(--color-primary);
  font-family: serif;
  line-height: 0;
  vertical-align: -0.5em;
  margin-right: 0.15em;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-glass-border);
}

.testimonial-card__avatar {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-success));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
  color: #fff;
  flex-shrink: 0;
}

.testimonial-card__name {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.testimonial-card__city {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   15. PRICING TABLE
   -------------------------------------------------------------------------- */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: start;
}

@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing-card {
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  text-align: center;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-featured {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
  border-color: rgba(59, 130, 246, 0.3);
  position: relative;
  box-shadow:
    0 0 40px rgba(59, 130, 246, 0.1);
  transform: scale(1.03);
}

.pricing-featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.pricing-featured__badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-1) var(--space-4);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
}

.pricing-card__name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.pricing-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.pricing-price {
  margin-bottom: var(--space-6);
}

.pricing-price__amount {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
}

.pricing-price__currency {
  font-size: var(--text-xl);
  vertical-align: super;
  color: var(--color-text-secondary);
}

.pricing-price__period {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.pricing-feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  text-align: left;
  margin-bottom: var(--space-8);
  flex: 1;
}

.pricing-feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.pricing-feature-list li svg {
  width: 1rem;
  height: 1rem;
  color: var(--color-success);
  flex-shrink: 0;
}

.pricing-feature-list li.disabled {
  color: var(--color-text-muted);
  text-decoration: line-through;
  opacity: 0.6;
}

.pricing-feature-list li.disabled svg {
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   16. BADGES / TAGS
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.25rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.badge-success {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--color-success-light);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.3);
  color: var(--color-warning);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.badge-primary {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.3);
  color: var(--color-primary-light);
}

.badge-premium {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(239, 68, 68, 0.1) 100%);
  border-color: rgba(245, 158, 11, 0.4);
  color: var(--color-warning);
}

.badge-premium::before {
  content: '★';
  font-size: 0.6rem;
}

/* --------------------------------------------------------------------------
   17. PROGRESS BAR
   -------------------------------------------------------------------------- */
.progress-bar {
  width: 100%;
  height: 0.5rem;
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-success) 100%);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.2) 50%,
    transparent 100%
  );
  animation: shimmer 2s ease-in-out infinite;
}

.progress-bar--lg {
  height: 0.75rem;
}

.progress-bar--labeled {
  position: relative;
}

.progress-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  display: flex;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   18. STATS COUNTER
   -------------------------------------------------------------------------- */
.stat-card {
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  transition:
    background var(--transition-base),
    transform var(--transition-base);
}

.stat-card:hover {
  background: var(--color-glass-hover);
  transform: translateY(-2px);
}

.stat-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  color: #fff;
}

.stat-card__icon--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.stat-card__icon--success {
  background: linear-gradient(135deg, var(--color-success), var(--color-success-dark));
}

.stat-card__icon--warning {
  background: linear-gradient(135deg, var(--color-warning), var(--color-warning-dark));
}

.stat-card__number {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.1;
  margin-bottom: var(--space-1);
}

.stat-card__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   19. BREADCRUMBS
   -------------------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
}

.breadcrumb__item a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}

.breadcrumb__item a:hover {
  color: var(--color-primary-light);
}

.breadcrumb__separator {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.breadcrumb__item:last-child {
  color: var(--color-text);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   20. TOAST NOTIFICATIONS
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
  max-width: min(24rem, calc(100vw - 2rem));
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-3);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: slideInRight var(--transition-base) ease-out;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.toast-success {
  border-left: 3px solid var(--color-success);
}

.toast-error {
  border-left: 3px solid var(--color-danger);
}

.toast-warning {
  border-left: 3px solid var(--color-warning);
}

.toast-info {
  border-left: 3px solid var(--color-primary);
}

.toast__icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 2px;
}

.toast-success .toast__icon { color: var(--color-success); }
.toast-error .toast__icon { color: var(--color-danger); }
.toast-warning .toast__icon { color: var(--color-warning); }
.toast-info .toast__icon { color: var(--color-primary); }

.toast__content {
  flex: 1;
  min-width: 0;
}

.toast__title {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: 2px;
}

.toast__message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.toast__close {
  flex-shrink: 0;
  padding: var(--space-1);
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition:
    color var(--transition-base),
    background var(--transition-base);
}

.toast__close:hover {
  color: var(--color-text);
  background: var(--color-glass);
}

.toast.hiding {
  animation: slideOutRight var(--transition-base) ease-in forwards;
}

/* --------------------------------------------------------------------------
   21. MODAL / POPUP
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

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

.modal {
  width: 100%;
  max-width: 32rem;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-8);
  transform: scale(0.95) translateY(1rem);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  padding: var(--space-2);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition:
    color var(--transition-base),
    background var(--transition-base);
}

.modal__close:hover {
  color: var(--color-text);
  background: var(--color-glass);
}

.modal__header {
  margin-bottom: var(--space-6);
  position: relative;
}

.modal__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
}

.modal__body {
  margin-bottom: var(--space-6);
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-glass-border);
}

/* --------------------------------------------------------------------------
   22. LOADING STATES
   -------------------------------------------------------------------------- */
/* Skeleton shimmer */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  color: transparent !important;
}

.skeleton * {
  visibility: hidden;
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 100%
  );
  animation: shimmer 1.5s ease-in-out infinite;
}

.skeleton-text {
  height: 1rem;
  margin-bottom: var(--space-2);
  border-radius: var(--radius-sm);
}

.skeleton-title {
  height: 1.75rem;
  width: 60%;
  margin-bottom: var(--space-3);
  border-radius: var(--radius-sm);
}

.skeleton-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
}

.skeleton-card {
  height: 12rem;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--color-surface-3);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner--sm {
  width: 1rem;
  height: 1rem;
  border-width: 2px;
}

.spinner--lg {
  width: 3rem;
  height: 3rem;
  border-width: 4px;
}

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 39, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: inherit;
  z-index: 10;
}

/* --------------------------------------------------------------------------
   23. TABLES
   -------------------------------------------------------------------------- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-glass-border);
}

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

.table thead {
  background: var(--color-surface-2);
}

.table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.table td {
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-secondary);
  border-top: 1px solid var(--color-glass-border);
  vertical-align: middle;
}

.table tbody tr {
  transition: background var(--transition-base);
}

.table tbody tr:hover {
  background: var(--color-glass);
}

/* --------------------------------------------------------------------------
   24. FOOTER
   -------------------------------------------------------------------------- */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-surface-3);
  padding-top: clamp(3rem, 5vw, 5rem);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

@media (min-width: 480px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer__col-title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer__link:hover {
  color: var(--color-primary-light);
}

.footer__sources {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-surface-3);
  border-bottom: 1px solid var(--color-surface-3);
  margin-bottom: var(--space-5);
}

.footer__sources-text {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.6;
}

.footer__sources-text strong {
  color: var(--color-text-secondary);
  font-weight: 500;
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
  text-align: center;
  padding-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  transition:
    color var(--transition-base),
    background var(--transition-base),
    border-color var(--transition-base);
}

.footer__social-link:hover {
  color: var(--color-text);
  background: var(--color-glass-hover);
  border-color: var(--color-primary);
}

.footer__social-link svg {
  width: 1rem;
  height: 1rem;
}

/* --------------------------------------------------------------------------
   25. EXIT POPUP
   -------------------------------------------------------------------------- */
.exit-popup {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.exit-popup.active {
  opacity: 1;
  visibility: visible;
}

.exit-popup__card {
  width: 100%;
  max-width: 28rem;
  background: var(--color-surface);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  text-align: center;
  transform: scale(0.9) translateY(2rem);
  transition: transform var(--transition-base) cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--shadow-xl);
  position: relative;
}

.exit-popup.active .exit-popup__card {
  transform: scale(1) translateY(0);
}

.exit-popup__close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: var(--space-2);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition:
    color var(--transition-base),
    background var(--transition-base);
}

.exit-popup__close:hover {
  color: var(--color-text);
  background: var(--color-glass);
}

.exit-popup__emoji {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
}

.exit-popup__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.exit-popup__text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  line-height: 1.7;
}

.exit-popup__dismiss {
  display: block;
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  cursor: pointer;
  background: none;
  border: none;
  transition: color var(--transition-base);
}

.exit-popup__dismiss:hover {
  color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   26. KEYFRAME ANIMATIONS
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-1.5rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes float {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-10vh) rotate(720deg);
    opacity: 0;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
  }
  50% {
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.4);
  }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(0.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   27. UTILITY CLASSES
   -------------------------------------------------------------------------- */

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

/* Margin bottom */
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-7 { margin-bottom: var(--space-7); }
.mb-8 { margin-bottom: var(--space-8); }

/* Margin top */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-7 { margin-top: var(--space-7); }
.mt-8 { margin-top: var(--space-8); }

/* Padding */
.p-0 { padding: 0; }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

/* Flex */
.flex { display: flex; }
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.flex-col {
  display: flex;
  flex-direction: column;
}
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }

/* Gaps */
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }

.visible-mobile {
  display: block;
}

.visible-desktop {
  display: none;
}

@media (min-width: 1024px) {
  .visible-mobile {
    display: none;
  }
  .visible-desktop {
    display: block;
  }
}

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

/* Position */
.relative { position: relative; }

/* Overflow */
.overflow-hidden { overflow: hidden; }

/* --------------------------------------------------------------------------
   28. REDUCED MOTION
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --------------------------------------------------------------------------
   29. PRINT STYLES
   -------------------------------------------------------------------------- */
@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
    background: #fff !important;
  }

  .navbar,
  .footer,
  .exit-popup,
  .toast-container,
  .nav-hamburger,
  .nav-mobile,
  .nav-mobile__overlay,
  .hero__particles,
  .btn-ghost,
  .btn-secondary {
    display: none !important;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
    color: #000 !important;
  }

  p, li {
    orphans: 3;
    widows: 3;
  }

  a {
    color: #000 !important;
    text-decoration: underline;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    font-weight: normal;
  }

  .card,
  .card-solid,
  .card-interactive,
  .card-featured {
    border: 1px solid #ccc !important;
    page-break-inside: avoid;
  }

  .badge {
    border: 1px solid #ccc !important;
  }

  .progress-fill::after {
    display: none;
  }

  .table {
    border: 1px solid #ccc;
  }

  .table th,
  .table td {
    border: 1px solid #ccc;
    padding: 0.5rem;
  }
}