/*
 * moveIQ — Landing Page Stylesheet
 * Follows design-system/draughtsmaster-ai/MASTER.md
 * Style: Flat Design, Mobile-First, WCAG AA compliant
 */

/* ============================================================
   CUSTOM PROPERTIES — Design Tokens
   ============================================================ */
:root {
  /* Colors — aligned with design-system.css brand tokens */
  --color-primary: #024d51;        /* Dark teal — brand primary */
  --color-secondary: #03686e;      /* Lighter teal */
  --color-cta: #ff7351;            /* Coral — CTA/accent */
  --color-cta-hover: #e5623f;      /* Coral hover */
  --color-background: #faf8f5;     /* Warm off-white */
  --color-surface: #ffffff;
  --color-text: #1a1a2e;           /* Near-black */
  --color-text-muted: #6b7280;
  --color-text-inverted: #ffffff;
  --color-border: #e5e1db;
  --color-border-light: #f5f2ed;
  --color-primary-dark: #013639;
  --color-primary-light: #e8f5f5;

  /* Spacing */
  --space-xs: 0.25rem;   /* 4px */
  --space-sm: 0.5rem;    /* 8px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 3rem;     /* 48px */
  --space-3xl: 4rem;     /* 64px */

  /* Typography */
  --font-heading: "Poppins", system-ui, -apple-system, sans-serif;
  --font-body: "Open Sans", system-ui, -apple-system, sans-serif;

  /* Shadows — flat design uses them sparingly */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;

  /* Layout */
  --container-max: 1280px;
  --container-padding: var(--space-md);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

a:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

p {
  margin: 0 0 var(--space-md);
}

ul,
ol {
  margin: 0 0 var(--space-md);
  padding-left: var(--space-xl);
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base),
              opacity var(--transition-base),
              transform var(--transition-base);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

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

.btn-primary:hover {
  background-color: var(--color-cta-hover);
  border-color: var(--color-cta-hover);
  color: var(--color-text-inverted);
  transform: translateY(-1px);
}

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

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

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverted);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-inverted);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--color-text-inverted);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 64px;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex-shrink: 0;
}

.site-header__logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.site-header__logo-icon svg {
  width: 22px;
  height: 22px;
}

.site-header__logo-text {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

.site-header__logo-text span {
  color: var(--color-primary);
}

.site-header__nav {
  display: none;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.site-header__nav-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.lang-selector {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-border-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
  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='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 28px;
}

.lang-selector:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.lang-selector:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}

.mobile-menu-toggle:hover {
  background-color: var(--color-border-light);
}

.mobile-menu-toggle:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.mobile-menu-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--color-text);
}

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  flex-direction: column;
  padding: var(--space-md) 0 var(--space-lg);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav__link {
  display: block;
  padding: var(--space-sm) var(--container-padding);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-nav__link:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.mobile-nav__cta {
  margin: var(--space-md) var(--container-padding) 0;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  background-color: var(--color-primary);
  color: var(--color-text-inverted);
  padding: var(--space-3xl) 0;
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(37, 99, 235, 0.4) 0%, transparent 40%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  align-items: center;
}

.hero__content {
  text-align: center;
  max-width: 640px;
}

.hero__eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: var(--space-md);
  padding: var(--space-xs) var(--space-md);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 99px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text-inverted);
  margin-bottom: var(--space-lg);
}

.hero__title-accent {
  color: var(--color-cta);
}

.hero__subtitle {
  font-size: 1.125rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-xl);
}

.hero__cta-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
}

.hero__cta-note {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--space-sm);
}

.hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 380px;
  width: 100%;
}

.hero__board {
  width: 100%;
  max-width: 360px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.hero__stats {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero__stat {
  text-align: center;
}

.hero__stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-cta);
  line-height: 1;
}

.hero__stat-label {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--space-xs);
}

/* ============================================================
   TRUST BAR
   ============================================================ */
.trust-bar {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
}

.trust-bar__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  text-align: center;
}

.trust-bar__label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.trust-bar__logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  align-items: center;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.trust-bar__logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
}

.trust-bar__logo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: var(--space-xs) var(--space-lg);
  background-color: var(--color-border-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ============================================================
   SECTION SHARED STYLES
   ============================================================ */
.section {
  padding: var(--space-3xl) 0;
}

.section--alt {
  background-color: var(--color-surface);
}

.section__header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
}

.section__eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-family: var(--font-heading);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.section__description {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0;
}

/* ============================================================
   FEATURE CARDS — Learn Section
   ============================================================ */
.curriculum-tiers {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.tier-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  cursor: pointer;
}

.tier-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.tier-card--featured {
  border-color: var(--color-primary);
  border-width: 2px;
  position: relative;
}

.tier-card__badge {
  position: absolute;
  top: -12px;
  left: var(--space-xl);
  background-color: var(--color-primary);
  color: var(--color-text-inverted);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  padding: var(--space-xs) var(--space-md);
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tier-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  background-color: var(--color-primary-light);
}

.tier-card__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.tier-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.tier-card__description {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
}

.tier-card__features {
  list-style: none;
  margin: 0 0 var(--space-lg);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.tier-card__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--color-text);
}

.tier-card__feature-icon {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

.tier-card__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  transition: gap var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
}

.tier-card__cta:hover {
  gap: var(--space-sm);
  color: var(--color-primary-dark);
}

/* ============================================================
   PUZZLE TEASER
   ============================================================ */
.puzzle-teaser {
  margin-top: var(--space-2xl);
  background-color: var(--color-text);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

.puzzle-teaser__board {
  width: 200px;
  height: 200px;
  border-radius: var(--radius-md);
  opacity: 0.8;
}

.puzzle-teaser__label {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-inverted);
}

.puzzle-teaser__hint {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================================
   FEATURE HIGHLIGHTS — Coach / Play sections
   ============================================================ */
.features-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.feature-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.feature-item__icon {
  width: 44px;
  height: 44px;
  background-color: var(--color-primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-item__icon svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
}

.feature-item__icon--cta {
  background-color: #fff7ed;
}

.feature-item__icon--cta svg {
  color: var(--color-cta);
}

.feature-item__body {}

.feature-item__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.feature-item__description {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Two-column feature layout */
.two-col-feature {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  align-items: center;
}

.two-col-feature__content {
  flex: 1;
}

.two-col-feature__visual {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.two-col-feature__image-placeholder {
  width: 100%;
  max-width: 440px;
  aspect-ratio: 4 / 3;
  background-color: var(--color-primary-light);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--color-border);
}

.two-col-feature__image-placeholder svg {
  width: 64px;
  height: 64px;
  color: var(--color-primary);
  opacity: 0.4;
}

/* ============================================================
   GAME VARIATIONS
   ============================================================ */
.game-variants-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.game-variant-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text);
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.game-variant-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-1px);
  color: var(--color-text);
}

.game-variant-card__icon {
  width: 52px;
  height: 52px;
  background-color: var(--color-primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.game-variant-card__icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.game-variant-card__body {
  flex: 1;
}

.game-variant-card__name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.game-variant-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

.game-variant-card__arrow {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
}

.game-variant-card:hover .game-variant-card__arrow {
  transform: translateX(4px);
  color: var(--color-primary);
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.testimonial-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.testimonial-card__quote {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  font-style: italic;
  margin-bottom: var(--space-lg);
  position: relative;
  padding-left: var(--space-lg);
}

.testimonial-card__quote::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
}

.testimonial-card__name {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text);
}

.testimonial-card__role {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  background-color: var(--color-primary);
  color: var(--color-text-inverted);
  padding: var(--space-3xl) 0;
  text-align: center;
}

.cta-banner__title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-inverted);
  margin-bottom: var(--space-md);
}

.cta-banner__description {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-xl);
  max-width: 520px;
  margin-inline: auto;
}

.cta-banner__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
}

/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-footer {
  background-color: var(--color-text);
  color: rgba(255, 255, 255, 0.75);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.site-footer__top {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.site-footer__brand {}

.site-footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  margin-bottom: var(--space-md);
}

.site-footer__logo-icon {
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.site-footer__logo-text {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-inverted);
}

.site-footer__tagline {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  max-width: 260px;
  margin: 0 0 var(--space-lg);
}

.site-footer__social {
  display: flex;
  gap: var(--space-sm);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
}

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

.site-footer__social-link:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-md);
}

.site-footer__social-link svg {
  width: 18px;
  height: 18px;
}

.site-footer__nav-groups {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.site-footer__nav-group-title {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-inverted);
  margin-bottom: var(--space-md);
}

.site-footer__nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.site-footer__nav-link {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  transition: color var(--transition-fast);
  cursor: pointer;
}

.site-footer__nav-link:hover {
  color: var(--color-text-inverted);
}

.site-footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  align-items: center;
  text-align: center;
}

.site-footer__copyright {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
  margin: 0;
}

.site-footer__lang {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.site-footer__lang-label {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

.site-footer__lang-select {
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.8);
  font-family: var(--font-body);
  font-size: 0.875rem;
  padding: var(--space-xs) var(--space-md);
  cursor: pointer;
  transition: border-color var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.site-footer__lang-select:hover,
.site-footer__lang-select:focus-visible {
  border-color: rgba(255, 255, 255, 0.5);
  outline: none;
}

/* ============================================================
   LEGAL PAGES
   ============================================================ */
.legal-page {
  padding: var(--space-3xl) 0;
}

.legal-page__breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  list-style: none;
  margin-top: 0;
  padding: 0;
}

.legal-page__breadcrumb-item + .legal-page__breadcrumb-item::before {
  content: "/";
  color: var(--color-border);
}

.legal-page__breadcrumb-link {
  color: var(--color-primary);
  text-decoration: none;
}

.legal-page__breadcrumb-link:hover {
  text-decoration: underline;
}

.legal-page__header {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.legal-page__title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.legal-page__meta {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
}

.legal-page__meta time {
  font-weight: 600;
  color: var(--color-text);
}

.legal-page__toc {
  background-color: var(--color-border-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.legal-page__toc-title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.legal-page__toc-list {
  list-style: decimal;
  margin: 0;
  padding-left: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.legal-page__toc-link {
  font-size: 0.9375rem;
  color: var(--color-primary);
  text-decoration: none;
}

.legal-page__toc-link:hover {
  text-decoration: underline;
}

.legal-page__body {
  max-width: 720px;
}

.legal-page__body h2 {
  font-size: 1.5rem;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
  scroll-margin-top: 80px;
}

.legal-page__body h3 {
  font-size: 1.125rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.legal-page__body p,
.legal-page__body li {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-text);
}

.legal-page__body ul,
.legal-page__body ol {
  padding-left: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.legal-page__body li {
  margin-bottom: var(--space-xs);
}

.legal-page__body a {
  color: var(--color-primary);
}

.legal-page__body strong {
  font-weight: 700;
  color: var(--color-text);
}

.legal-page__aside {
  display: none;
}

/* ============================================================
   COOKIE CONSENT BANNER
   ============================================================ */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
  padding: var(--space-lg) 0;
}

.cookie-banner__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.cookie-banner__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
}

.cookie-banner__text a {
  color: var(--color-primary);
}

.cookie-banner__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* ============================================================
   RESPONSIVE — 768px (md)
   ============================================================ */
@media (min-width: 768px) {
  :root {
    --container-padding: var(--space-xl);
  }

  /* Header */
  .site-header__nav {
    display: flex;
  }

  .mobile-menu-toggle {
    display: none;
  }

  .mobile-nav {
    display: none !important;
  }

  /* Hero */
  .hero__title {
    font-size: 3rem;
  }

  .hero__cta-group {
    flex-direction: row;
    justify-content: center;
  }

  /* Trust bar */
  .trust-bar__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  /* Sections */
  .section__title {
    font-size: 2.25rem;
  }

  /* Curriculum tiers */
  .curriculum-tiers {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  /* Puzzle teaser */
  .puzzle-teaser {
    flex-direction: row;
    text-align: left;
  }

  /* Features grid */
  .features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  /* Game variants */
  .game-variants-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  /* Testimonials */
  .testimonials-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  /* Footer */
  .site-footer__nav-groups {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
  }

  /* CTA banner */
  .cta-banner__actions {
    flex-direction: row;
    justify-content: center;
  }

  /* Cookie */
  .cookie-banner__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .cookie-banner__text {
    max-width: 55%;
  }

  .cookie-banner__actions {
    flex-direction: row;
    flex-shrink: 0;
  }

  /* Legal */
  .legal-page__body h2 {
    font-size: 1.75rem;
  }
}

/* ============================================================
   RESPONSIVE — 1024px (lg)
   ============================================================ */
@media (min-width: 1024px) {
  /* Hero two-column */
  .hero__inner {
    flex-direction: row;
    align-items: center;
    gap: var(--space-3xl);
  }

  .hero__content {
    text-align: left;
    flex: 1;
  }

  .hero__cta-group {
    justify-content: flex-start;
  }

  .hero__stats {
    justify-content: flex-start;
  }

  .hero__visual {
    flex-shrink: 0;
    max-width: none;
    width: 440px;
  }

  .hero__board {
    max-width: 440px;
  }

  .hero__eyebrow {
    margin-bottom: var(--space-md);
  }

  /* Two-col feature layout */
  .two-col-feature {
    flex-direction: row;
    gap: var(--space-3xl);
  }

  .two-col-feature--reverse {
    flex-direction: row-reverse;
  }

  /* Curriculum tiers 3-col */
  .curriculum-tiers {
    grid-template-columns: 1fr 1fr 1fr;
  }

  /* Features 3-col */
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Testimonials 3-col */
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Footer */
  .site-footer__top {
    flex-direction: row;
    gap: var(--space-3xl);
  }

  .site-footer__brand {
    flex-shrink: 0;
    max-width: 280px;
  }

  .site-footer__nav-groups {
    flex: 1;
  }

  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  /* Legal page with sidebar */
  .legal-page__layout {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: var(--space-3xl);
    align-items: start;
  }

  .legal-page__aside {
    display: block;
    position: sticky;
    top: 80px;
  }

  .legal-page__aside-toc {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
  }

  .legal-page__aside-toc-title {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
  }

  .legal-page__aside-toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
  }

  .legal-page__aside-toc-link {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-decoration: none;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
  }

  .legal-page__aside-toc-link:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
  }
}

/* ============================================================
   RESPONSIVE — 1440px (xl)
   ============================================================ */
@media (min-width: 1440px) {
  .hero__title {
    font-size: 3.75rem;
  }

  .section__title {
    font-size: 2.5rem;
  }
}

/* ============================================================
   SKIP LINK (accessibility)
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 9999;
  background-color: var(--color-primary);
  color: var(--color-text-inverted);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-header,
  .site-footer,
  .cta-banner,
  .cookie-banner {
    display: none;
  }

  .legal-page__body {
    max-width: 100%;
  }
}