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

:root {
  --color-primary: #3a5bd9;
  --color-primary-dark: #2a45bb;
  --color-accent: #f5a623;
  --color-bg: #f9fafc;
  --color-text: #1a1a2e;
  --color-text-muted: #5a6275;
  --color-white: #ffffff;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(58, 91, 217, 0.10);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  font-size: 16px;
}

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

a:hover {
  text-decoration: underline;
}

/* ── Nav ── */

.nav {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav__inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

.nav__logo span {
  color: var(--color-accent);
}

.nav__lang {
  display: flex;
  gap: 8px;
  font-size: 0.85rem;
}

.nav__lang a {
  padding: 4px 10px;
  border-radius: 6px;
  color: var(--color-text-muted);
  font-weight: 500;
  transition: background 0.15s;
}

.nav__lang a:hover {
  background: var(--color-bg);
  text-decoration: none;
}

.nav__lang a.active {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ── Hero ── */

.hero {
  background: linear-gradient(135deg, #2a45bb 0%, #3a5bd9 60%, #5b7fff 100%);
  color: var(--color-white);
  text-align: center;
  padding: 80px 24px 72px;
}

.hero__eyebrow {
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.75;
  margin-bottom: 16px;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 20px;
}

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

.hero__desc {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 520px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.btn-play {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--color-white);
  color: var(--color-text);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  box-shadow: 0 6px 20px rgba(0,0,0,0.18);
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn-play:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.22);
  text-decoration: none;
}

.btn-play svg {
  flex-shrink: 0;
}

/* ── Features ── */

.features {
  max-width: 960px;
  margin: 0 auto;
  padding: 64px 24px;
}

.section-title {
  text-align: center;
  font-size: 1.7rem;
  font-weight: 700;
  margin-bottom: 48px;
  color: var(--color-text);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  text-align: center;
}

.feature-card__icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
  display: block;
}

.feature-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.feature-card__text {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── CTA strip ── */

.cta-strip {
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
  padding: 52px 24px;
}

.cta-strip__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

/* ── Footer ── */

.footer {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: 28px 24px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.footer__links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 10px;
}

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

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

.footer__copy {
  opacity: 0.7;
}

/* ── Privacy policy page ── */

.policy {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.policy h1 {
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.policy .policy__updated {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

.policy h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 10px;
  color: var(--color-text);
}

.policy p {
  margin-bottom: 14px;
  color: var(--color-text-muted);
}

.policy ul {
  margin: 10px 0 14px 24px;
  color: var(--color-text-muted);
}

.policy ul li {
  margin-bottom: 6px;
}

@media (max-width: 480px) {
  .hero {
    padding: 56px 20px 52px;
  }

  .nav__logo {
    font-size: 1.2rem;
  }
}