:root {
  --bg: #101522;
  --panel: #182033;
  --panel-light: #202a42;
  --text: #f4f6fb;
  --muted: #b9c2d6;
  --accent: #7cc7ff;
  --accent-2: #ffd36e;
  --border: rgba(255,255,255,0.14);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--accent); }
header {
  border-bottom: 1px solid var(--border);
  background: rgba(16,21,34,0.95);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
}
nav { display: flex; flex-wrap: wrap; gap: 12px; font-size: 0.95rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--text); }
main { max-width: 1100px; margin: 0 auto; padding: 40px 20px; }
.hero { padding: 56px 0; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.05;
  margin: 0 0 20px;
}
.hero p, .page-title p { max-width: 760px; font-size: 1.15rem; color: var(--muted); }
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.badge {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
}
.section { margin: 48px 0; }
.section h2 { font-size: 2rem; margin-bottom: 12px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}
.card h3 { margin-top: 0; }
.notice {
  background: rgba(255, 211, 110, 0.1);
  border: 1px solid rgba(255, 211, 110, 0.35);
  border-radius: 16px;
  padding: 18px;
  color: #ffe6a6;
}
.placeholder {
  min-height: 180px;
  display: grid;
  place-items: center;
  border: 1px dashed var(--border);
  border-radius: 16px;
  color: var(--muted);
  background: var(--panel-light);
  text-align: center;
  padding: 20px;
}
footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 28px 20px;
  color: var(--muted);
}
.footer-inner { max-width: 1100px; margin: 0 auto; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.page-title { max-width: 760px; }
.page-title h1 { font-size: clamp(2rem, 4vw, 3.25rem); margin-bottom: 10px; }
.content { max-width: 820px; }
.content h2 { margin-top: 36px; }
.content p, .content li { color: var(--muted); }
.cta {
  display: inline-block;
  margin-top: 18px;
  background: var(--accent);
  color: #06111d;
  text-decoration: none;
  font-weight: 700;
  padding: 12px 18px;
  border-radius: 999px;
}
@media (max-width: 720px) {
  .nav { align-items: flex-start; flex-direction: column; }
  nav { font-size: 0.9rem; }
  main { padding-top: 28px; }
  .hero { padding: 32px 0; }
}

.channel-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: stretch;
}

.channel-card {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.channel-logo {
  width: 100%;
  max-width: 220px;
  height: 140px;
  object-fit: contain;
  background: #ffffff;
  border-radius: 12px;
  padding: 12px;
  margin: 0 auto 16px;
  display: block;
}

.channel-card h3,
.channel-card p {
  width: 100%;
}


.section-intro { max-width: 760px; color: var(--muted); }
.wide-content { max-width: 1000px; }
.resource-grid .card h2 { font-size: 1.25rem; margin-top: 0; }
.resource-grid .card h2 a, .card h3 a { color: var(--text); text-decoration: none; }
.resource-grid .card h2 a:hover, .card h3 a:hover { color: var(--accent); }
.schedule-table { width: 100%; border-collapse: collapse; margin: 20px 0 28px; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.schedule-table th, .schedule-table td { border-bottom: 1px solid var(--border); padding: 12px 14px; text-align: left; vertical-align: top; }
.schedule-table th { color: var(--text); background: var(--panel-light); }
.schedule-table td { color: var(--muted); }
.schedule-table tr:last-child td { border-bottom: 0; }
.compact-table { margin: 12px 0 0; }
.timeline { display: grid; gap: 12px; margin: 20px 0; }
.timeline-item { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 16px; }
.timeline-item strong { display: block; color: var(--text); margin-bottom: 4px; }
.timeline-item span { color: var(--muted); }
.mockup-screen { background: #0b1020; border: 1px solid var(--border); border-radius: 18px; padding: 18px; margin: 18px 0 34px; box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04); }
.mockup-topbar { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--border); padding-bottom: 12px; margin-bottom: 12px; font-weight: 800; }
.mockup-topbar span { color: var(--muted); font-weight: 500; }
.mockup-channel-list { display: grid; gap: 10px; }
.mockup-channel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.mockup-channel.active { border-color: rgba(124,199,255,0.75); background: rgba(124,199,255,0.08); }
.mockup-channel strong, .mockup-channel span { display: block; }
.mockup-channel span { color: var(--muted); }
.mockup-video { min-height: 240px; display: grid; place-items: center; text-align: center; background: linear-gradient(135deg, var(--panel), var(--panel-light)); border: 1px dashed var(--border); border-radius: 14px; font-weight: 900; letter-spacing: 0.08em; }
.mockup-video span { display: block; color: var(--muted); font-weight: 500; letter-spacing: normal; margin-top: 6px; }
.mockup-info { display: flex; justify-content: space-between; gap: 12px; padding-top: 14px; color: var(--muted); }
.mockup-info strong { color: var(--text); }
.adbreak-mockup p { color: var(--muted); margin-bottom: 0; }
.mockup-note { color: var(--muted); font-size: 0.95rem; }
@media (max-width: 720px) {
  .schedule-table { font-size: 0.92rem; }
  .schedule-table th, .schedule-table td { padding: 10px; }
  .mockup-topbar, .mockup-info { flex-direction: column; }
}

.callout { background: rgba(124,199,255,0.08); border: 1px solid rgba(124,199,255,0.3); border-radius: 16px; padding: 18px; margin: 20px 0; color: var(--muted); }
.callout strong { color: var(--text); }