:root {
  color-scheme: dark;
  --background: #090b0d;
  --surface: #151719;
  --surface-soft: #1d2022;
  --border: rgba(255, 255, 255, 0.09);
  --text: #f5f7f8;
  --muted: #adb4b8;
  --cyan: #53c7ed;
  --orange: #f97316;
  --max-width: 900px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 50% 0%, rgba(83, 199, 237, 0.09), transparent 34rem),
    var(--background);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

a { color: var(--cyan); }
a:hover { color: #8adbf5; }

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(9, 11, 13, 0.88);
  backdrop-filter: blur(16px);
}

.header-inner,
.main-content,
.footer-inner {
  width: min(calc(100% - 36px), var(--max-width));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 24px 0;
}

.logo {
  width: 50px;
  height: 50px;
  border-radius: 14px;
}

.brand-name {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: 0.01em;
}

.brand-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.main-content { padding: 72px 0 84px; }

.hero { margin-bottom: 38px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--orange);
  font-size: 0.8rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.25rem, 7vw, 4.4rem);
  line-height: 1.03;
  letter-spacing: -0.055em;
}

.updated {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.notice,
.policy-card {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(21, 23, 25, 0.9);
}

.notice {
  margin-bottom: 26px;
  padding: 20px 22px;
  border-left: 3px solid var(--orange);
  color: #d9dddf;
}
.notice p { margin: 0; }

.policy-card { padding: clamp(24px, 5vw, 46px); }
.policy-section + .policy-section {
  margin-top: 42px;
  padding-top: 42px;
  border-top: 1px solid var(--border);
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.35rem, 4vw, 1.8rem);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

p { margin: 0 0 14px; }
p:last-child { margin-bottom: 0; }

ul { margin: 12px 0 0; padding-left: 1.25rem; }
li + li { margin-top: 8px; }

.contact-box {
  margin-top: 18px;
  padding: 18px;
  border-radius: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
}
.contact-box strong { display: block; margin-bottom: 4px; }

.site-footer {
  border-top: 1px solid var(--border);
  background: #070809;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px 0;
}

.footer-copy {
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-copy p { margin: 0; }

.play-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid rgba(83, 199, 237, 0.35);
  border-radius: 14px;
  background: rgba(83, 199, 237, 0.08);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}
.play-button:hover {
  color: var(--text);
  transform: translateY(-1px);
  background: rgba(83, 199, 237, 0.14);
  border-color: rgba(83, 199, 237, 0.58);
}
.play-button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.72;
}

@media (max-width: 680px) {
  .main-content { padding-top: 52px; }
  .footer-inner { align-items: stretch; flex-direction: column; }
  .play-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}