@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --font-heading: 'Fredoka', sans-serif;
  --font-body: 'Inter', sans-serif;

  --color-bg: #131A2C;
  --color-bg-alt: #0F1524;
  --color-card: #1E2A44;
  --color-card-alt: #24304C;

  --color-primary: #FBBF24;
  --color-primary-light: #FDE68A;
  --color-primary-dark: #F59E0B;
  --color-secondary: #3B82F6;
  --color-accent: #F0653D;

  --color-text: #F5F7FA;
  --color-text-muted: #94A3B8;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-outline: #0B0F1C;

  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;

  --shadow-card: 0 14px 34px rgba(0, 0, 0, 0.4);
  --shadow-btn: 0 10px 24px rgba(245, 158, 11, 0.35);
  --transition: 220ms ease-out;

  --header-height: 76px;
}

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

html.hide #preloader {
  opacity: 0;
  visibility: hidden;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

body.fixed {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  position: relative;
  padding: 96px 0;
  overflow: hidden;
}

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

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.25);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 20px;
}

.section-title .accent {
  background: linear-gradient(120deg, var(--color-primary-light), var(--color-primary-dark));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-text {
  color: var(--color-text-muted);
  font-size: 17px;
  max-width: 620px;
}

.section-text + .section-text {
  margin-top: 16px;
}

/* Preloader */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader img {
  width: 64px;
  height: 64px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), height var(--transition);
}

.site-header.scrolled {
  background: rgba(19, 26, 44, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  height: 66px;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo img {
  height: 40px;
  width: auto;
  transition: height var(--transition);
}

.site-header.scrolled .logo img {
  height: 34px;
}

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

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  cursor: pointer;
}

.nav-link:hover {
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.05);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 16px;
  padding: 15px 30px;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  touch-action: manipulation;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-dark));
  color: var(--color-outline);
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 30px rgba(245, 158, 11, 0.45);
}

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

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

.btn-sm {
  padding: 11px 22px;
  font-size: 14px;
}

.btn-header {
  padding: 12px 24px;
  font-size: 14px;
}

@keyframes float-cta {
  0% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0); }
}

.hero-actions .btn-primary {
  animation: float-cta 3s ease-in-out infinite;
}

.hero-actions .btn-primary:hover {
  animation-play-state: paused;
}

/* Burger */
.burger-btn {
  display: none;
  background: transparent;
  border: 0;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  z-index: 1001;
}

.burger-btn span {
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.burger-btn span:nth-child(1) { transform: translateY(-7px); }
.burger-btn span:nth-child(3) { transform: translateY(7px); }

.burger-btn.act span:nth-child(1) { transform: rotate(45deg); }
.burger-btn.act span:nth-child(2) { opacity: 0; }
.burger-btn.act span:nth-child(3) { transform: rotate(-45deg); }

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: min(320px, 80vw);
  background: var(--color-bg-alt);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 6px;
  padding: 32px;
  transition: transform var(--transition);
  transform: translateX(100%);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.4);
  z-index: 1000;
}

#mobile-menu {
  opacity: 0;
  pointer-events: none;
}

#mobile-menu.opened {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

/* Hero */
.hero {
  padding-top: calc(var(--header-height) + 72px);
  padding-bottom: 96px;
  background: var(--color-bg) url('../img/hero-bg.webp') center top / cover no-repeat;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(19, 26, 44, 0.2) 0%, var(--color-bg) 96%);
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: clamp(34px, 5vw, 56px);
  margin-bottom: 22px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

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

.phone-frame {
  position: relative;
  width: 280px;
  border-radius: 40px;
  border: 6px solid var(--color-card);
  background: var(--color-card);
  box-shadow: var(--shadow-card), 0 0 0 1px var(--color-border);
  overflow: hidden;
}

.phone-frame img {
  width: 100%;
  border-radius: 32px;
}

.phone-glow {
  position: absolute;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.28) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -1;
}

/* Feature cards grid (Gameplay section) */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.feature-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: transform var(--transition), border-color var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(251, 191, 36, 0.35);
}

.feature-card .feature-num {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-bg);
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-dark));
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--color-text-muted);
  font-size: 14.5px;
}

.gameplay-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.point-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.point-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  color: var(--color-text-muted);
  font-size: 15.5px;
}

.point-list .dot {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.4);
  margin-top: 3px;
}

/* Logic section */
.logic-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.highlight-list {
  display: grid;
  gap: 14px;
  margin: 28px 0 34px;
}

.highlight-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  color: var(--color-text-muted);
  font-size: 15.5px;
}

.highlight-list .dot {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: rgba(240, 101, 61, 0.15);
  border: 1px solid rgba(240, 101, 61, 0.4);
  margin-top: 3px;
}

.logic-visual img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* Levels / rankings stat cards */
.levels-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.stat-list {
  display: grid;
  gap: 14px;
  margin: 28px 0 8px;
}

.stat-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  color: var(--color-text-muted);
  font-size: 15.5px;
}

.stat-list .dot {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: rgba(251, 191, 36, 0.15);
  border: 1px solid rgba(251, 191, 36, 0.4);
  margin-top: 3px;
}

/* Rankings / Game info */
.rankings-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.info-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 32px;
}

.info-pill {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  min-width: 140px;
}

.info-pill .pill-label {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.info-pill .pill-value {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
}

.gameplay-style-note {
  color: var(--color-text-muted);
  font-size: 15px;
  font-style: italic;
  border-left: 3px solid var(--color-secondary);
  padding-left: 16px;
  margin-bottom: 36px;
}

.rankings-cta {
  margin-top: 8px;
}

/* Footer */
.site-footer {
  background: var(--color-bg-alt) url('../img/footer-bg.webp') center / cover no-repeat;
  padding: 72px 0 32px;
  border-top: 1px solid var(--color-border);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand .logo img {
  height: 36px;
  margin-bottom: 18px;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 14.5px;
  max-width: 340px;
}

.footer-col h4 {
  font-size: 15px;
  margin-bottom: 18px;
  color: var(--color-text);
}

.footer-col ul {
  display: grid;
  gap: 12px;
}

.footer-col a {
  color: var(--color-text-muted);
  font-size: 14.5px;
  padding: 0;
  transition: color var(--transition);
  cursor: pointer;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 13.5px;
}

/* Legal pages */
.legal-page {
  padding-top: calc(var(--header-height) + 64px);
  padding-bottom: 96px;
}

.legal-content {
  max-width: 780px;
  margin: 0 auto;
}

.legal-content h1 {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 24px;
}

.legal-content h2 {
  font-size: 22px;
  margin: 36px 0 14px;
}

.legal-content p,
.legal-content li {
  color: var(--color-text-muted);
  font-size: 15.5px;
  margin-bottom: 14px;
}

.legal-content ul,
.legal-content ol {
  padding-left: 22px;
  margin-bottom: 14px;
}

.legal-content ul li {
  list-style: disc;
}

.legal-content ol li {
  list-style: decimal;
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.legal-content strong {
  color: var(--color-text);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero .container,
  .gameplay-layout,
  .logic-layout,
  .levels-layout,
  .rankings-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

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

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }

  .mobile-nav .nav-link {
    width: 100%;
    padding: 14px 12px;
    font-size: 18px;
  }

  .burger-btn {
    display: flex;
  }

  .header-actions .btn-header {
    display: none;
  }

  section {
    padding: 64px 0;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: calc(var(--header-height) + 40px);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .phone-frame {
    width: 220px;
  }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .info-pill {
    min-width: 130px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-actions .btn-primary {
    animation: none;
  }
}