:root {
  --color-primary: #1976d2;
  --color-primary-light: #e3f2fd;
  --color-primary-dark: #0d47a1;
  --color-accent: #ff9800;
  --color-accent-hover: #f57c00;
  --color-bg: #f8fafc;
  --color-card-bg: #ffffff;
  --color-text-main: #1e293b;
  --color-text-muted: #64748b;
  --color-success: #2e7d32;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 16px 36px rgba(0,0,0,0.1);
  --container-max: 1100px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 6px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: #ffffff;
  padding: 8px 16px;
  z-index: 1000;
  transition: top 0.2s ease;
}

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

/* Header */
.site-header {
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text-main);
}

.brand-icon {
  font-size: 2rem;
}

.brand-text {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-primary);
}

.lang-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-link {
  display: inline-block;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border: 1px solid #e2e8f0;
  transition: all 0.2s ease;
}

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

.lang-link.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

/* Main Container */
.main-content {
  flex: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 20px 60px;
  width: 100%;
}

/* Breadcrumbs */
.breadcrumbs {
  margin-bottom: 24px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.breadcrumbs a {
  color: var(--color-text-muted);
}

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

.breadcrumbs span {
  margin: 0 8px;
}

/* Hero */
.hero-section {
  text-align: center;
  margin-bottom: 40px;
}

.hero-section h1 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.25;
  color: #0f172a;
  margin-bottom: 16px;
}

.hero-intro {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  max-width: 800px;
  margin: 0 auto;
}

/* Author CTA: the main path from the public catalog into STUDIO. */
.author-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #fff7ed 100%);
  border: 1px solid #dbeafe;
  border-radius: var(--radius-lg);
  padding: 30px 36px;
  margin-bottom: 36px;
  box-shadow: var(--shadow-sm);
}

.author-cta-copy {
  max-width: 660px;
}

.author-cta-eyebrow {
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.author-cta h2 {
  color: #0f172a;
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 10px;
}

.author-cta-text {
  color: #475569;
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.author-cta-note {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.author-cta-actions {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  gap: 10px;
  min-width: 200px;
}

.btn-author-primary,
.btn-author-secondary {
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  padding: 12px 24px;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-author-primary {
  background: var(--color-primary);
  box-shadow: 0 4px 14px rgba(25, 118, 210, 0.25);
  color: #ffffff;
}

.btn-author-primary:hover {
  background: var(--color-primary-dark);
  color: #ffffff;
}

.btn-author-secondary {
  background: #ffffff;
  border: 2px solid #bfdbfe;
  color: var(--color-primary-dark);
}

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

@media (max-width: 720px) {
  .author-cta {
    align-items: flex-start;
    flex-direction: column;
    padding: 24px;
  }
  .author-cta-actions {
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
  }
}

/* Age Filter Bar */
.filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.filter-btn {
  background: #ffffff;
  border: 2px solid #e2e8f0;
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-main);
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.filter-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

/* Games Grid */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
  margin-bottom: 50px;
}

.game-card {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  border: 1px solid #f1f5f9;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.game-icon {
  font-size: 3rem;
  line-height: 1;
}

.age-badge {
  background: #e0f2fe;
  color: #0369a1;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 20px;
}

.game-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.game-card-title a {
  color: var(--color-text-main);
}

.game-card-title a:hover {
  color: var(--color-primary);
}

.game-desc {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: 18px;
  flex: 1;
}

.skills-preview {
  background: #f8fafc;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.skills-preview strong {
  color: var(--color-text-main);
  display: block;
  margin-bottom: 4px;
}

.card-actions {
  display: flex;
  gap: 12px;
}

.btn-play {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: #ffffff;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(255, 152, 0, 0.3);
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-play:hover {
  background: var(--color-accent-hover);
  color: #ffffff;
  transform: scale(1.02);
}

.btn-details {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #f1f5f9;
  color: var(--color-text-main);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease;
}

.btn-details:hover {
  background: #e2e8f0;
  color: var(--color-text-main);
}

/* Informational Section for parents */
.info-section {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 32px;
  border: 1px solid #f1f5f9;
}

.info-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 16px;
}

.info-section p {
  color: #475569;
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.info-section p:last-child {
  margin-bottom: 0;
}

/* Single Game Landing Page */
.game-landing {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.game-landing-hero {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid #f1f5f9;
  display: flex;
  align-items: center;
  gap: 32px;
}

.landing-icon-wrap {
  font-size: 5rem;
  background: var(--color-primary-light);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.landing-hero-content {
  flex: 1;
}

.landing-hero-content h1 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.landing-tagline {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.landing-cta-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-cta-big {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 800;
  padding: 16px 36px;
  border-radius: 36px;
  box-shadow: 0 8px 24px rgba(255, 152, 0, 0.4);
  transition: transform 0.15s ease, background-color 0.2s ease;
}

.btn-cta-big:hover {
  background: var(--color-accent-hover);
  color: #ffffff;
  transform: translateY(-2px);
}

.landing-sections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

@media (max-width: 800px) {
  .landing-sections {
    grid-template-columns: 1fr;
  }
  .game-landing-hero {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }
  .landing-cta-row {
    justify-content: center;
  }
}

.landing-block {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  border: 1px solid #f1f5f9;
}

.landing-block h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: #0f172a;
}

.landing-block p {
  color: #475569;
  font-size: 1rem;
}

/* FAQ Section */
.faq-section {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid #f1f5f9;
}

.faq-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.faq-item {
  border-bottom: 1px solid #e2e8f0;
  padding: 18px 0;
}

.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.faq-question {
  font-size: 1.15rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 8px;
}

.faq-answer {
  color: #475569;
  font-size: 1rem;
}

/* Other games row */
.other-games-section {
  margin-top: 10px;
}

.other-games-section h2 {
  font-size: 1.4rem;
  margin-bottom: 18px;
}

/* Privacy Document */
.document-wrap {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid #f1f5f9;
}

.document-wrap h1 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.document-wrap h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 28px;
  margin-bottom: 10px;
}

.document-wrap p {
  color: #475569;
  margin-bottom: 14px;
}

/* 404 */
.not-found-wrap {
  text-align: center;
  padding: 60px 20px;
}

.not-found-icon {
  font-size: 5rem;
  margin-bottom: 20px;
}

.not-found-wrap h1 {
  font-size: 2.4rem;
  margin-bottom: 12px;
}

.not-found-wrap p {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

/* Footer */
.site-footer {
  background: #ffffff;
  border-top: 1px solid #e2e8f0;
  padding: 28px 20px;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .lang-nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
  }
  .hero-section h1 {
    font-size: 1.8rem;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* Accessibility: prefers-reduced-motion (Issue A1, TZ 6.4, 11) */
@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;
  }
}

/* Catalog filter: message when no game matches */
.filter-empty {
  text-align: center;
  color: var(--color-text-muted);
  margin: 24px 0;
}

.back-to-catalog {
  margin-top: 24px;
  text-align: center;
  font-weight: 600;
}

/* Honeypot формы жалобы (T056): поле есть в разметке, но человек его не видит —
   заполняют только боты, их ответы молча отбрасываются. */
.honeypot-field {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  pointer-events: none;
}