/* ============================================================================
   Guide Classement — site.css
   Single source of truth for all public-site styles.
   High-contrast editorial identity using OKLCH custom properties.
   Mobile-first responsive rules for 360/390/430/768/1024/desktop.
   All class names are prefixed with `gc-`.
   No external CDN references, no Bootstrap blue (#007bff), no unused framework.
   ============================================================================ */

/* ----------------------------------------------------------------------------
   1. Design tokens
   ---------------------------------------------------------------------------- */
:root {
  /* OKLCH color primitives */
  --gc-paper: oklch(0.93 0.01 60);
  --gc-paper-warm: oklch(0.90 0.015 55);
  --gc-ink: oklch(0.14 0 0);
  --gc-ink-muted: oklch(0.42 0.01 80);
  --gc-vermillion: oklch(0.56 0.22 28);
  --gc-vermillion-deep: oklch(0.48 0.24 28);
  --gc-charcoal: oklch(0.18 0 0);
  --gc-charcoal-soft: oklch(0.26 0 0);

  /* Semantic colors */
  --gc-background: var(--gc-paper);
  --gc-background-alt: var(--gc-paper-warm);
  --gc-foreground: var(--gc-ink);
  --gc-foreground-muted: var(--gc-ink-muted);
  --gc-primary: var(--gc-vermillion);
  --gc-primary-hover: var(--gc-vermillion-deep);
  --gc-primary-foreground: oklch(0.99 0 0);
  --gc-secondary: var(--gc-charcoal);
  --gc-secondary-hover: var(--gc-charcoal-soft);
  --gc-secondary-foreground: oklch(0.99 0 0);
  --gc-accent: var(--gc-vermillion);
  --gc-border: var(--gc-ink);
  --gc-border-subtle: oklch(0.14 0 0 / 0.18);
  --gc-ring: var(--gc-vermillion);
  --gc-shadow-color: oklch(0.14 0 0 / 0.18);

  /* Typography */
  --gc-font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --gc-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Cascadia Mono", "Consolas", monospace;
  --gc-line-height: 1.65;
  --gc-line-height-tight: 1.1;

  /* Fluid type scale */
  --gc-text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);
  --gc-text-sm: clamp(0.875rem, 0.8rem + 0.25vw, 1rem);
  --gc-text-base: clamp(1rem, 0.92rem + 0.3vw, 1.125rem);
  --gc-text-lg: clamp(1.125rem, 1rem + 0.45vw, 1.375rem);
  --gc-text-xl: clamp(1.375rem, 1.15rem + 0.8vw, 1.875rem);
  --gc-text-2xl: clamp(1.75rem, 1.4rem + 1.3vw, 2.625rem);
  --gc-text-3xl: clamp(2.25rem, 1.7rem + 2.1vw, 3.75rem);
  --gc-text-4xl: clamp(2.75rem, 2rem + 2.8vw, 5rem);

  /* Spacing */
  --gc-space-1: 0.25rem;
  --gc-space-2: 0.5rem;
  --gc-space-3: 0.75rem;
  --gc-space-4: 1rem;
  --gc-space-5: 1.25rem;
  --gc-space-6: 1.5rem;
  --gc-space-8: 2rem;
  --gc-space-10: 2.5rem;
  --gc-space-12: 3rem;
  --gc-space-16: 4rem;
  --gc-space-20: 5rem;
  --gc-space-24: 6rem;

  /* Radii — sharp editorial corners */
  --gc-radius: 0px;
  --gc-radius-sm: 0px;
  --gc-radius-md: 0px;
  --gc-radius-lg: 0px;

  /* Offset hard shadows */
  --gc-shadow-2xs: 2px 2px 0 0 var(--gc-shadow-color);
  --gc-shadow-xs: 3px 3px 0 0 var(--gc-shadow-color);
  --gc-shadow-sm: 4px 4px 0 0 var(--gc-shadow-color);
  --gc-shadow-md: 6px 6px 0 0 var(--gc-shadow-color);
  --gc-shadow-lg: 8px 8px 0 0 var(--gc-shadow-color);

  /* Motion */
  --gc-duration-fast: 150ms;
  --gc-duration-base: 250ms;
  --gc-duration-slow: 350ms;
  --gc-ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --gc-sidebar-width: 16rem;
  --gc-topbar-height: 3.5rem;
  --gc-container-max: 75rem;
  --gc-section-py: var(--gc-space-16);

  /* Stacking */
  --gc-z-overlay: 90;
  --gc-z-topbar: 100;
  --gc-z-drawer: 110;
  --gc-z-cookie: 150;
  --gc-z-agegate: 200;
}

/* ----------------------------------------------------------------------------
   2. Reset & base
   ---------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--gc-font-sans);
  font-size: var(--gc-text-base);
  line-height: var(--gc-line-height);
  color: var(--gc-foreground);
  background-color: var(--gc-background);
}

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

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

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.15em;
  text-decoration-thickness: 0.08em;
}

a:hover {
  text-decoration-thickness: 0.12em;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style-position: inside;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin: 0;
}

:focus-visible {
  outline: 3px solid var(--gc-ring);
  outline-offset: 2px;
}

::selection {
  background-color: var(--gc-primary);
  color: var(--gc-primary-foreground);
}

@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;
  }
}

/* ----------------------------------------------------------------------------
   3. Typography
   ---------------------------------------------------------------------------- */
h1 {
  font-size: var(--gc-text-4xl);
  line-height: var(--gc-line-height-tight);
  letter-spacing: -0.03em;
  font-weight: 700;
}

h2 {
  font-size: var(--gc-text-3xl);
  line-height: var(--gc-line-height-tight);
  letter-spacing: -0.02em;
  font-weight: 700;
}

h3 {
  font-size: var(--gc-text-2xl);
  line-height: var(--gc-line-height-tight);
  letter-spacing: -0.01em;
  font-weight: 700;
}

h4 {
  font-size: var(--gc-text-xl);
  line-height: var(--gc-line-height-tight);
  font-weight: 700;
}

h5 {
  font-size: var(--gc-text-lg);
  font-weight: 700;
}

h6 {
  font-size: var(--gc-text-base);
  font-weight: 700;
}

.gc-kicker {
  font-family: var(--gc-font-mono);
  font-size: var(--gc-text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gc-primary);
}

.gc-prose {
  max-width: none;
}

.gc-prose p + p,
.gc-prose p + ul,
.gc-prose p + ol {
  margin-top: var(--gc-space-5);
}

.gc-prose h2,
.gc-prose h3 {
  margin-top: var(--gc-space-12);
  margin-bottom: var(--gc-space-4);
}

.gc-prose ul,
.gc-prose ol {
  padding-left: var(--gc-space-6);
}

.gc-prose ul {
  list-style: disc;
}

.gc-prose li + li {
  margin-top: var(--gc-space-2);
}

.gc-prose blockquote {
  border-left: 3px solid var(--gc-primary);
  padding-left: var(--gc-space-5);
  color: var(--gc-foreground-muted);
  font-style: italic;
}

/* ----------------------------------------------------------------------------
   4. Layout shell
   ---------------------------------------------------------------------------- */
.gc-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: var(--gc-topbar-height);
}

.gc-main {
  flex: 1 1 auto;
}

.gc-container {
  width: 100%;
  max-width: none;
  margin-inline: auto;
  padding-inline: var(--gc-space-4);
}

.gc-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: calc(var(--gc-z-agegate) + 10);
  background-color: var(--gc-primary);
  color: var(--gc-primary-foreground);
  padding: var(--gc-space-3) var(--gc-space-4);
  text-decoration: none;
  font-weight: 600;
}

.gc-skip-link:focus {
  left: var(--gc-space-4);
  top: var(--gc-space-4);
}

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

/* ----------------------------------------------------------------------------
   5. Topbar, sidebar & mobile drawer
   ---------------------------------------------------------------------------- */
.gc-topbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--gc-topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--gc-space-4);
  background-color: var(--gc-background);
  border-bottom: 2px solid var(--gc-border);
  z-index: var(--gc-z-topbar);
}

.gc-topbar__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--gc-space-2);
  font-size: var(--gc-text-lg);
  font-weight: 700;
  text-decoration: none;
}

.gc-topbar__brand img,
.gc-topbar__brand svg {
  width: 1.75rem;
  height: 1.75rem;
}

.gc-menu-btn {
  appearance: none;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 2px solid var(--gc-border);
  background-color: var(--gc-background);
  box-shadow: var(--gc-shadow-2xs);
  transition: box-shadow var(--gc-duration-fast), transform var(--gc-duration-fast);
}

.gc-menu-btn:hover {
  box-shadow: var(--gc-shadow-xs);
}

.gc-menu-btn__line {
  display: block;
  width: 1.25rem;
  height: 2px;
  background-color: var(--gc-foreground);
  transition: transform var(--gc-duration-base) var(--gc-ease-out), opacity var(--gc-duration-base);
}

.gc-menu-btn[aria-expanded="true"] .gc-menu-btn__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.gc-menu-btn[aria-expanded="true"] .gc-menu-btn__line:nth-child(2) {
  opacity: 0;
}

.gc-menu-btn[aria-expanded="true"] .gc-menu-btn__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.gc-drawer {
  position: fixed;
  inset: var(--gc-topbar-height) auto 0 0;
  width: min(85vw, 18rem);
  background-color: var(--gc-background);
  border-right: 2px solid var(--gc-border);
  transform: translateX(-100%);
  transition: transform var(--gc-duration-base) var(--gc-ease-out);
  z-index: var(--gc-z-drawer);
  overflow-y: auto;
  padding: var(--gc-space-6);
}

.gc-drawer.is-open {
  transform: translateX(0);
}

.gc-drawer__overlay {
  position: fixed;
  inset: var(--gc-topbar-height) 0 0 0;
  background-color: oklch(0 0 0 / 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--gc-duration-base), visibility var(--gc-duration-base);
  z-index: var(--gc-z-overlay);
}

.gc-drawer__overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.gc-sidebar {
  display: none;
}

.gc-nav {
  display: flex;
  flex-direction: column;
  gap: var(--gc-space-1);
}

.gc-nav__brand {
  display: flex;
  align-items: center;
  gap: var(--gc-space-3);
  margin-bottom: var(--gc-space-8);
  font-size: var(--gc-text-xl);
  font-weight: 700;
  text-decoration: none;
}

.gc-nav__brand img,
.gc-nav__brand svg {
  width: 2rem;
  height: 2rem;
}

.gc-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--gc-space-1);
}

.gc-nav-list--secondary {
  margin-top: var(--gc-space-8);
  padding-top: var(--gc-space-6);
  border-top: 1px solid var(--gc-border-subtle);
}

.gc-nav-link {
  display: flex;
  align-items: center;
  gap: var(--gc-space-3);
  padding: var(--gc-space-3) var(--gc-space-4);
  border: 2px solid transparent;
  background-color: transparent;
  color: inherit;
  font-weight: 500;
  text-decoration: none;
  transition: border-color var(--gc-duration-fast), background-color var(--gc-duration-fast), box-shadow var(--gc-duration-fast);
}

.gc-nav-link:hover,
.gc-nav-link:focus {
  background-color: var(--gc-background);
  border-color: var(--gc-border);
  box-shadow: var(--gc-shadow-xs);
}

.gc-nav-link[aria-current="page"],
.gc-nav-link.is-active {
  background-color: var(--gc-foreground);
  color: var(--gc-background);
  border-color: var(--gc-foreground);
}

/* ----------------------------------------------------------------------------
   6. Hero — asymmetric editorial block
   ---------------------------------------------------------------------------- */
.gc-hero {
  position: relative;
  padding-block: var(--gc-space-20) var(--gc-space-16);
  background-color: var(--gc-background);
  border-bottom: 2px solid var(--gc-border);
  overflow: hidden;
}

.gc-hero__grid {
  display: grid;
  gap: var(--gc-space-8);
  align-items: center;
}

.gc-hero__kicker {
  margin-bottom: var(--gc-space-4);
}

.gc-hero__title {
  max-width: none;
  margin-bottom: var(--gc-space-6);
}

.gc-hero__lead {
  max-width: none;
  margin-bottom: var(--gc-space-8);
  font-size: var(--gc-text-lg);
  color: var(--gc-foreground-muted);
}

.gc-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gc-space-4);
}

.gc-hero__aside {
  border: 2px solid var(--gc-border);
  background-color: var(--gc-background-alt);
  padding: var(--gc-space-6);
  box-shadow: var(--gc-shadow-sm);
}

.gc-hero__aside-title {
  font-size: var(--gc-text-lg);
  margin-bottom: var(--gc-space-3);
}

/* ----------------------------------------------------------------------------
   7. Reading anchor navigation
   ---------------------------------------------------------------------------- */
.gc-reading-nav {
  padding-block: var(--gc-space-8);
  border-bottom: 1px solid var(--gc-border-subtle);
}

.gc-reading-nav__title {
  font-family: var(--gc-font-mono);
  font-size: var(--gc-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--gc-space-4);
  color: var(--gc-foreground-muted);
}

.gc-reading-nav__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--gc-space-3);
}

.gc-reading-nav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--gc-space-2);
  padding: var(--gc-space-2) var(--gc-space-3);
  border: 2px solid var(--gc-border);
  background-color: var(--gc-background);
  font-size: var(--gc-text-sm);
  font-weight: 500;
  text-decoration: none;
  box-shadow: var(--gc-shadow-2xs);
  transition: transform var(--gc-duration-fast), box-shadow var(--gc-duration-fast);
}

.gc-reading-nav__link:hover,
.gc-reading-nav__link:focus {
  transform: translate(-2px, -2px);
  box-shadow: var(--gc-shadow-xs);
}

/* ----------------------------------------------------------------------------
   8. Sections & hub portal blocks
   ---------------------------------------------------------------------------- */
.gc-section {
  padding-block: var(--gc-section-py);
  border-bottom: 1px solid var(--gc-border-subtle);
}

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

.gc-section--primary {
  background-color: var(--gc-primary);
  color: var(--gc-primary-foreground);
  border-bottom-color: oklch(0.99 0 0 / 0.25);
}

.gc-section--primary .gc-section__lead,
.gc-section--primary .gc-kicker {
  color: inherit;
  opacity: 0.9;
}

.gc-section__header {
  max-width: none;
  margin-bottom: var(--gc-space-10);
}

.gc-section__title {
  margin-bottom: var(--gc-space-4);
}

.gc-section__lead {
  font-size: var(--gc-text-lg);
  color: var(--gc-foreground-muted);
}

.gc-hub {
  display: grid;
  gap: var(--gc-space-4);
}

.gc-hub__item {
  border: 2px solid var(--gc-border);
  background-color: var(--gc-background);
  padding: var(--gc-space-6);
  box-shadow: var(--gc-shadow-sm);
}

.gc-hub__number {
  font-family: var(--gc-font-mono);
  font-size: var(--gc-text-xs);
  font-weight: 700;
  color: var(--gc-primary);
  margin-bottom: var(--gc-space-3);
}

.gc-hub__title {
  font-size: var(--gc-text-xl);
  margin-bottom: var(--gc-space-3);
}

.gc-hub__body {
  color: var(--gc-foreground-muted);
}

/* ----------------------------------------------------------------------------
   9. Cards
   ---------------------------------------------------------------------------- */
.gc-card {
  border: 2px solid var(--gc-border);
  background-color: var(--gc-background);
  padding: var(--gc-space-6);
  box-shadow: var(--gc-shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--gc-space-4);
  transition: transform var(--gc-duration-fast), box-shadow var(--gc-duration-fast);
}

.gc-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--gc-shadow-md);
}

.gc-card--outline {
  background-color: transparent;
  box-shadow: none;
}

.gc-card--outline:hover {
  box-shadow: var(--gc-shadow-xs);
}

.gc-card--fill {
  background-color: var(--gc-background-alt);
}

.gc-card--primary {
  background-color: var(--gc-primary);
  color: var(--gc-primary-foreground);
  border-color: var(--gc-primary);
}

.gc-card__title {
  font-size: var(--gc-text-xl);
  font-weight: 700;
}

.gc-card__body {
  color: var(--gc-foreground-muted);
}

.gc-card--primary .gc-card__body {
  color: inherit;
  opacity: 0.9;
}

.gc-card__footer {
  margin-top: auto;
  padding-top: var(--gc-space-4);
}

/* ----------------------------------------------------------------------------
   10. Platform card grid (1 col mobile, 3+2 desktop)
   ---------------------------------------------------------------------------- */
.gc-platform-grid {
  display: grid;
  gap: var(--gc-space-6);
}

.gc-platform-grid--five {
  grid-template-columns: 1fr;
}

.gc-platform-card {
  border: 2px solid var(--gc-border);
  background-color: var(--gc-background);
  padding: var(--gc-space-6);
  box-shadow: var(--gc-shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform var(--gc-duration-fast), box-shadow var(--gc-duration-fast);
}

.gc-platform-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--gc-shadow-md);
}

.gc-platform-card__logo {
  max-width: 10rem;
  max-height: 10rem;
  object-fit: contain;
  margin-bottom: var(--gc-space-4);
}

.gc-platform-card__meta {
  font-family: var(--gc-font-mono);
  font-size: var(--gc-text-xs);
  color: var(--gc-foreground-muted);
  border: 1px solid var(--gc-border-subtle);
  padding: var(--gc-space-2) var(--gc-space-3);
  margin-bottom: var(--gc-space-4);
}

.gc-platform-card__title {
  font-size: var(--gc-text-xl);
  font-weight: 700;
  margin-bottom: var(--gc-space-3);
}

.gc-platform-card__summary {
  font-size: var(--gc-text-base);
  color: var(--gc-foreground-muted);
  margin-bottom: var(--gc-space-4);
}

.gc-platform-card__criteria {
  list-style: none;
  width: 100%;
  text-align: left;
  margin: 0 0 var(--gc-space-4) 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--gc-space-2);
}

.gc-platform-card__criteria li {
  display: flex;
  gap: var(--gc-space-2);
  align-items: flex-start;
  font-size: var(--gc-text-sm);
}

.gc-platform-card__criteria li::before {
  content: "✓";
  flex-shrink: 0;
  color: var(--gc-primary);
  font-weight: 700;
}

.gc-platform-card__note {
  width: 100%;
  text-align: left;
  font-size: var(--gc-text-sm);
  color: var(--gc-foreground-muted);
  border-left: 3px solid var(--gc-primary);
  padding-left: var(--gc-space-3);
  margin-bottom: var(--gc-space-6);
}

.gc-platform-card__cta {
  margin-top: auto;
}

/* ----------------------------------------------------------------------------
   11. FAQ accordion
   ---------------------------------------------------------------------------- */
.gc-faq {
  display: flex;
  flex-direction: column;
  gap: var(--gc-space-4);
}

.gc-faq__item {
  border: 2px solid var(--gc-border);
  background-color: var(--gc-background);
}

.gc-faq__question {
  width: 100%;
  appearance: none;
  border: none;
  background-color: transparent;
  padding: var(--gc-space-4) var(--gc-space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gc-space-4);
  text-align: left;
  font-size: var(--gc-text-lg);
  font-weight: 600;
  color: inherit;
}

.gc-faq__question::after {
  content: "+";
  flex-shrink: 0;
  font-size: var(--gc-text-2xl);
  font-weight: 400;
  color: var(--gc-primary);
  transition: transform var(--gc-duration-base) var(--gc-ease-out);
}

.gc-faq__question[aria-expanded="true"]::after {
  content: "−";
}

.gc-faq__answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--gc-duration-base) var(--gc-ease-out);
}

.gc-faq__answer.is-open {
  grid-template-rows: 1fr;
}

.gc-faq__answer-inner {
  overflow: hidden;
  padding-inline: var(--gc-space-5);
  padding-bottom: 0;
  color: var(--gc-foreground-muted);
  transition: padding-bottom var(--gc-duration-base) var(--gc-ease-out);
}

.gc-faq__answer.is-open .gc-faq__answer-inner {
  padding-bottom: var(--gc-space-5);
}

/* ----------------------------------------------------------------------------
   12. Footer & resource image row
   ---------------------------------------------------------------------------- */
.gc-footer-gallery {
  padding-block: var(--gc-space-12);
  border-bottom: 2px solid var(--gc-border);
}

.gc-footer-gallery__title {
  font-size: var(--gc-text-2xl);
  margin-bottom: var(--gc-space-6);
}

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

.gc-footer-gallery__item {
  border: 1px solid var(--gc-border-subtle);
  background-color: transparent;
  box-shadow: none;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: transform var(--gc-duration-fast);
}

.gc-footer-gallery__item:hover {
  transform: translate(-1px, -1px);
}

.gc-footer-gallery__item img {
  width: 140px;
  height: 80px;
  object-fit: contain;
}

.gc-footer {
  background-color: var(--gc-secondary);
  color: var(--gc-secondary-foreground);
  padding-block: var(--gc-space-10) var(--gc-space-8);
}

.gc-footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--gc-space-3);
}

.gc-footer__disclosure-text {
  font-size: var(--gc-text-xs);
  line-height: 1.4;
  color: oklch(0.99 0 0 / 0.65);
}

.gc-footer__domain {
  font-size: var(--gc-text-sm);
  font-weight: 700;
}

.gc-footer__copyright {
  font-size: var(--gc-text-xs);
  color: oklch(0.99 0 0 / 0.5);
}

.gc-footer a {
  color: inherit;
  text-underline-offset: 0.12em;
}

.gc-footer a:hover {
  color: var(--gc-primary-foreground);
}

.gc-footer__grid {
  display: grid;
  gap: var(--gc-space-8);
  margin-bottom: var(--gc-space-10);
}

.gc-footer__brand {
  font-size: var(--gc-text-xl);
  font-weight: 700;
}

.gc-footer__tagline {
  margin-top: var(--gc-space-3);
  color: oklch(0.99 0 0 / 0.75);
}

.gc-footer__heading {
  font-family: var(--gc-font-mono);
  font-size: var(--gc-text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--gc-space-4);
  color: oklch(0.99 0 0 / 0.7);
}

.gc-footer__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--gc-space-2);
}

.gc-footer__legal {
  border-top: 1px solid oklch(0.99 0 0 / 0.2);
  padding-top: var(--gc-space-6);
  display: flex;
  flex-direction: column;
  gap: var(--gc-space-4);
  font-size: var(--gc-text-sm);
  color: oklch(0.99 0 0 / 0.7);
}

/* ----------------------------------------------------------------------------
   13. Age gate popup
   ---------------------------------------------------------------------------- */
.gc-agegate {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--gc-space-4);
  background-color: oklch(0 0 0 / 0.88);
  z-index: var(--gc-z-agegate);
}

.gc-agegate.is-open {
  display: flex;
}

.gc-agegate__dialog {
  width: min(100%, 28rem);
  background-color: var(--gc-background);
  border: 3px solid var(--gc-border);
  padding: var(--gc-space-8) var(--gc-space-6);
  box-shadow: var(--gc-shadow-lg);
  text-align: center;
}

.gc-agegate__title {
  font-size: var(--gc-text-2xl);
  margin-bottom: var(--gc-space-4);
}

.gc-agegate__text {
  color: var(--gc-foreground-muted);
  margin-bottom: var(--gc-space-8);
}

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

/* ----------------------------------------------------------------------------
   14. Cookie banner
   ---------------------------------------------------------------------------- */
.gc-cookie {
  position: fixed;
  inset: auto 0 0 0;
  display: none;
  z-index: var(--gc-z-cookie);
  background-color: var(--gc-secondary);
  color: var(--gc-secondary-foreground);
  padding: var(--gc-space-5);
}

.gc-cookie.is-open {
  display: block;
}

.gc-cookie__inner {
  width: 100%;
  max-width: var(--gc-container-max);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--gc-space-4);
  align-items: flex-start;
}

.gc-cookie__text {
  font-size: var(--gc-text-sm);
  color: oklch(0.99 0 0 / 0.85);
}

.gc-cookie__text a {
  color: inherit;
}

.gc-cookie__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gc-space-3);
}

/* ----------------------------------------------------------------------------
   15. Buttons
   ---------------------------------------------------------------------------- */
.gc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--gc-space-2);
  min-height: 2.75rem;
  padding: var(--gc-space-3) var(--gc-space-5);
  border: 2px solid var(--gc-border);
  background-color: var(--gc-background);
  color: var(--gc-foreground);
  font-weight: 600;
  font-size: var(--gc-text-base);
  line-height: 1;
  text-decoration: none;
  box-shadow: var(--gc-shadow-xs);
  transition: transform var(--gc-duration-fast), box-shadow var(--gc-duration-fast), background-color var(--gc-duration-fast), border-color var(--gc-duration-fast);
}

.gc-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--gc-shadow-sm);
}

.gc-btn:active {
  transform: translate(0, 0);
  box-shadow: var(--gc-shadow-2xs);
}

.gc-btn:focus-visible {
  outline-color: var(--gc-foreground);
}

.gc-btn--primary {
  background-color: var(--gc-primary);
  border-color: var(--gc-primary);
  color: var(--gc-primary-foreground);
}

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

.gc-btn--secondary {
  background-color: var(--gc-secondary);
  border-color: var(--gc-secondary);
  color: var(--gc-secondary-foreground);
}

.gc-btn--secondary:hover {
  background-color: var(--gc-secondary-hover);
  border-color: var(--gc-secondary-hover);
}

.gc-btn--outline {
  background-color: transparent;
}

.gc-btn--ghost {
  background-color: transparent;
  border-color: transparent;
  box-shadow: none;
}

.gc-btn--ghost:hover {
  background-color: var(--gc-background-alt);
  box-shadow: none;
}

.gc-btn--small {
  min-height: 2.25rem;
  padding: var(--gc-space-2) var(--gc-space-3);
  font-size: var(--gc-text-sm);
}

.gc-btn--wide {
  width: 100%;
}

/* ----------------------------------------------------------------------------
   16. Responsive breakpoints
   ---------------------------------------------------------------------------- */
@media (min-width: 360px) {
  .gc-container {
    padding-inline: var(--gc-space-5);
  }

  .gc-hero {
    padding-block: var(--gc-space-24) var(--gc-space-20);
  }
}

@media (min-width: 390px) {
  :root {
    --gc-section-py: var(--gc-space-20);
  }
}

@media (min-width: 430px) {
  .gc-hero__cta {
    flex-wrap: nowrap;
  }

  .gc-footer-gallery__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .gc-container {
    padding-inline: var(--gc-space-8);
  }

  .gc-hero__grid {
    gap: var(--gc-space-12);
  }

  .gc-platform-grid--five {
    grid-template-columns: repeat(2, 1fr);
  }

  .gc-hub {
    grid-template-columns: repeat(2, 1fr);
  }

  .gc-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gc-footer__legal {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .gc-cookie__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .gc-topbar,
  .gc-drawer,
  .gc-drawer__overlay {
    display: none;
  }

  .gc-page {
    padding-top: 0;
    margin-left: var(--gc-sidebar-width);
  }

  .gc-main,
  .gc-footer,
  .gc-footer-gallery {
    margin-left: var(--gc-sidebar-width);
  }

  .gc-sidebar {
    display: block;
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--gc-sidebar-width);
    background-color: var(--gc-background-alt);
    border-right: 2px solid var(--gc-border);
    padding: var(--gc-space-8) var(--gc-space-6);
    overflow-y: auto;
    z-index: var(--gc-z-topbar);
  }

  .gc-hero__grid {
    grid-template-columns: 1.4fr 1fr;
  }

  .gc-platform-grid--five {
    grid-template-columns: repeat(6, 1fr);
  }

  .gc-platform-grid--five > .gc-platform-card:nth-child(-n + 3) {
    grid-column: span 2;
  }

  .gc-platform-grid--five > .gc-platform-card:nth-child(4) {
    grid-column: 2 / span 2;
  }

  .gc-platform-grid--five > .gc-platform-card:nth-child(5) {
    grid-column: 4 / span 2;
  }

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

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

@media (min-width: 1280px) {
  .gc-container {
    padding-inline: var(--gc-space-10);
  }

  .gc-hero__grid {
    grid-template-columns: 1.6fr 1fr;
  }

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