/* ChooseBlock Lab — Mobile-first styles */
:root {
  --color-bg: #0f1419;
  --color-bg-alt: #1a2332;
  --color-surface: #243044;
  --color-primary: #4ade80;
  --color-primary-dark: #22c55e;
  --color-accent: #38bdf8;
  --color-accent-warm: #fbbf24;
  --color-text: #e8edf4;
  --color-text-muted: #94a3b8;
  --color-border: rgba(148, 163, 184, 0.2);
  --color-overlay: rgba(15, 20, 25, 0.85);
  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", "Courier New", monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
  --header-h: 64px;
  --transition: 0.3s ease;
  --focus-ring: 0 0 0 3px rgba(74, 222, 128, 0.55);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

body.modal-open,
body.menu-open {
  overflow: hidden;
}

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

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 10000;
  padding: 0.75rem 1.25rem;
  background: var(--color-primary);
  color: var(--color-bg);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 3.5rem 0;
}

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

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 1rem;
  color: var(--color-text);
}

.section-desc {
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 0 2rem;
}

/* Top bar */
.top-bar {
  background: var(--color-surface);
  text-align: center;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

.top-bar strong {
  color: var(--color-accent-warm);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(15, 20, 25, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.125rem;
}

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

.logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav-desktop {
  display: none;
}

.nav-desktop ul {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-desktop a {
  display: block;
  padding: 0.5rem 0.875rem;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav-desktop a:hover,
.nav-desktop a[aria-current="page"] {
  color: var(--color-primary);
  background: rgba(74, 222, 128, 0.1);
}

.header-cta {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    transform var(--transition),
    background var(--transition),
    box-shadow var(--transition);
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

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

.btn-primary:hover {
  box-shadow: 0 4px 20px rgba(74, 222, 128, 0.35);
  color: var(--color-bg);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

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

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  cursor: pointer;
}

.menu-toggle svg {
  width: 22px;
  height: 22px;
}

/* Mobile menu */
.menu-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 950;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition),
    visibility var(--transition);
}

.menu-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--color-bg-alt);
  z-index: 960;
  transform: translateX(100%);
  transition: transform var(--transition);
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--color-border);
}

.mobile-nav.is-open {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.menu-close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  cursor: pointer;
}

.mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 1rem 0;
  flex: 1;
}

.mobile-nav a {
  display: block;
  padding: 0.875rem 1.5rem;
  color: var(--color-text);
  font-weight: 500;
  border-left: 3px solid transparent;
}

.mobile-nav a:hover,
.mobile-nav a[aria-current="page"] {
  background: rgba(74, 222, 128, 0.08);
  border-left-color: var(--color-primary);
  color: var(--color-primary);
}

.mobile-nav-footer {
  padding: 1.25rem;
  border-top: 1px solid var(--color-border);
}

/* Hero */
.hero {
  padding: 3rem 0 4rem;
  background:
    radial-gradient(
      ellipse at 20% 50%,
      rgba(74, 222, 128, 0.12) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 80% 20%,
      rgba(56, 189, 248, 0.1) 0%,
      transparent 40%
    ),
    var(--color-bg);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  background: rgba(74, 222, 128, 0.12);
  border: 1px solid rgba(74, 222, 128, 0.3);
  border-radius: 999px;
  font-size: 0.8125rem;
  color: var(--color-primary);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(1.875rem, 5vw, 3rem);
  line-height: 1.15;
  margin: 0 0 1.25rem;
  font-weight: 800;
}

.hero h1 span {
  color: var(--color-primary);
}

.hero-text {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  margin: 0 0 1.75rem;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-bottom: 2rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stat-card {
  text-align: center;
  padding: 1rem 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.stat-number {
  display: block;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.3;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.lab-preview {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1;
  background: linear-gradient(
    145deg,
    var(--color-surface),
    var(--color-bg-alt)
  );
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.lab-block {
  background: rgba(74, 222, 128, 0.15);
  border: 1px solid rgba(74, 222, 128, 0.35);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  animation: pulse-block 3s ease-in-out infinite;
}

.lab-block:nth-child(2) {
  animation-delay: 0.3s;
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.35);
  color: var(--color-accent);
}
.lab-block:nth-child(3) {
  animation-delay: 0.6s;
}
.lab-block:nth-child(4) {
  animation-delay: 0.9s;
  background: rgba(251, 191, 36, 0.15);
  border-color: rgba(251, 191, 36, 0.35);
  color: var(--color-accent-warm);
}
.lab-block:nth-child(5) {
  animation-delay: 1.2s;
  font-size: 1.25rem;
}
.lab-block:nth-child(6) {
  animation-delay: 1.5s;
}
.lab-block:nth-child(7) {
  animation-delay: 1.8s;
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.35);
  color: var(--color-accent);
}
.lab-block:nth-child(8) {
  animation-delay: 2.1s;
}
.lab-block:nth-child(9) {
  animation-delay: 2.4s;
  background: rgba(251, 191, 36, 0.15);
  border-color: rgba(251, 191, 36, 0.35);
  color: var(--color-accent-warm);
}

@keyframes pulse-block {
  0%,
  100% {
    opacity: 0.7;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.03);
  }
}

/* Game cards */
.games-grid {
  display: grid;
  gap: 1.5rem;
}

.game-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

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

.game-card-visual {
  aspect-ratio: 19 / 17;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  background: linear-gradient(
    135deg,
    rgba(74, 222, 128, 0.1),
    rgba(56, 189, 248, 0.1)
  );
  border-bottom: 1px solid var(--color-border);
}

.game-card-body {
  padding: 1.5rem;
}

.game-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.tag {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-muted);
}

.tag-green {
  background: rgba(74, 222, 128, 0.15);
  color: var(--color-primary);
}

.game-card h3 {
  margin: 0 0 0.625rem;
  font-size: 1.25rem;
}

.game-card p {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.game-difficulty {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.game-difficulty span {
  color: var(--color-accent-warm);
}

/* Steps */
.steps-grid {
  display: grid;
  gap: 1.5rem;
  counter-reset: step;
}

.step-card {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(74, 222, 128, 0.15);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1.125rem;
}

.step-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
}

.step-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Benefits */
.benefits-grid {
  display: grid;
  gap: 1.5rem;
}

.benefit-card {
  padding: 1.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
}

.benefit-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(74, 222, 128, 0.12);
  border-radius: var(--radius-md);
  color: var(--color-primary);
}

.benefit-icon svg {
  width: 28px;
  height: 28px;
}

.benefit-card h3 {
  margin: 0 0 0.625rem;
  font-size: 1.0625rem;
}

.benefit-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  gap: 1.5rem;
}

.testimonial-card {
  padding: 1.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  position: relative;
}

.testimonial-card::before {
  content: "\201C";
  position: absolute;
  top: 0.5rem;
  left: 1rem;
  font-size: 3rem;
  color: var(--color-primary);
  opacity: 0.3;
  line-height: 1;
}

.testimonial-text {
  margin: 0 0 1.25rem;
  color: var(--color-text-muted);
  font-style: italic;
  font-size: 0.9375rem;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.testimonial-author strong {
  color: var(--color-text);
  font-size: 0.9375rem;
}

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

/* Newsletter */
.newsletter-box {
  background: linear-gradient(
    135deg,
    var(--color-surface),
    var(--color-bg-alt)
  );
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  max-width: 480px;
  margin: 1.5rem auto 0;
}

.form-group {
  text-align: left;
  margin-bottom: 10px;
}

.form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: left;
}

.form-checkbox input {
  margin-top: 0.25rem;
  flex-shrink: 0;
}

/* Progress bars */
.progress-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 560px;
}

.progress-item label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.progress-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
  transition: width 1.2s ease-out;
}

/* Page hero (inner pages) */
.page-hero {
  padding: 2.5rem 0;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.page-hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.page-hero p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 640px;
}

/* Content pages */
.content-page {
  padding: 2.5rem 0 4rem;
}

.content-page h2 {
  font-size: 1.375rem;
  margin: 2rem 0 0.75rem;
  color: var(--color-text);
}

.content-page h2:first-child {
  margin-top: 0;
}

.content-page p,
.content-page li {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.content-page ul,
.content-page ol {
  margin: 0.75rem 0;
  padding-left: 1.5rem;
}

.content-page a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* About features */
.features-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-item {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.feature-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(74, 222, 128, 0.12);
  border-radius: var(--radius-md);
  color: var(--color-primary);
}

.feature-icon svg {
  width: 26px;
  height: 26px;
}

.feature-item h3 {
  margin: 0 0 0.375rem;
  font-size: 1.0625rem;
}

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

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(74, 222, 128, 0.12);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}

.contact-form-box {
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

/* Footer */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 0;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin: 0.75rem 0 0;
}

.footer-col h2 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 1rem;
  color: var(--color-text);
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

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

.footer-contact li {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.disclaimer {
  background: rgba(0, 0, 0, 0.25);
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
}

.disclaimer h2 {
  font-size: 1rem;
  margin: 0 0 0.75rem;
  color: var(--color-accent-warm);
}

.disclaimer p {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.disclaimer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
}

.footer-bottom {
  padding: 1.25rem 0;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

.footer-bottom span {
  color: var(--color-accent-warm);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition),
    visibility var(--transition);
}

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

.modal {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow);
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition);
  position: relative;
}

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

.modal h2 {
  margin: 0 0 1rem;
  font-size: 1.375rem;
}

.modal p {
  margin: 0 0 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--color-text);
}

.age-modal .modal-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(251, 191, 36, 0.15);
  border-radius: 50%;
  color: var(--color-accent-warm);
  font-size: 1.75rem;
  font-weight: 800;
}

.age-modal {
  text-align: center;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1800;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 1.25rem;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
  transform: translateY(100%);
  opacity: 0;
  visibility: hidden;
  transition:
    transform 0.4s ease,
    opacity 0.4s ease,
    visibility 0.4s ease;
}

.cookie-banner.is-visible {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.cookie-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

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

.cookie-actions {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.625rem;
}

/* Scroll animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.1s;
}
.reveal-delay-2 {
  transition-delay: 0.2s;
}
.reveal-delay-3 {
  transition-delay: 0.3s;
}

/* Help resources */
.help-resources {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0;
}

.help-card {
  padding: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.help-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.help-card p {
  margin: 0;
  font-size: 0.875rem;
}

/* Tablet */
@media (min-width: 640px) {
  .games-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

/* Desktop */
@media (min-width: 768px) {
  .section {
    padding: 5rem 0;
  }

  .nav-desktop {
    display: block;
  }

  .menu-toggle {
    display: none;
  }

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

  .hero-grid,
  .hero-grid-single {
    grid-template-columns: 1fr;
  }

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

  .benefits-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

/* Hero background image */
.hero {
  position: relative;
  overflow: hidden;
}

.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(15, 20, 25, 0.92) 0%,
    rgba(15, 20, 25, 0.75) 45%,
    rgba(15, 20, 25, 0.4) 100%
  );
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-grid-single {
  max-width: 640px;
}

.game-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.games-grid-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .games-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .games-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

  .step-card {
    flex-direction: column;
    text-align: center;
  }

  .step-number {
    margin: 0 auto;
  }
}

/* ── Performance ── */
.section:not(.hero),
.page-hero,
.site-footer {
  content-visibility: auto;
  contain-intrinsic-size: auto 400px;
}

.hero-bg-img {
  content-visibility: visible;
}

img {
  content-visibility: auto;
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .lab-block,
  .progress-fill {
    transition: none !important;
    animation: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}