:root {
  --deep-blue: #1f3565;
  --primary: #4472c4;
  --primary-dark: #2d4c8f;
  --accent: #ed7d31;
  --line: #d9dce5;
  --text: #1b2440;
  --bg: #f4f7ff;
  --muted: #4b5670;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Aptos", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 700px at 110% -120px, #dbe6ff 0%, transparent 55%),
    radial-gradient(900px 450px at -120px 220px, #ffefd7 0%, transparent 50%),
    linear-gradient(180deg, #f8fafd 0%, #f2f4fb 58%, #ffffff 100%);
}

.page {
  width: min(1400px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.9rem;
  flex-wrap: wrap;
}

.h1 {
  margin: 0;
  color: var(--primary-dark);
  font-size: clamp(1.2rem, 2.4vw, 1.8rem);
}

.stage {
  position: relative;
  background: #000;
  border-radius: 0.9rem;
  overflow: hidden;
  border: 1px solid #cfd7ec;
  box-shadow: 0 12px 30px rgba(26, 42, 84, 0.15);
  line-height: 0;
}

.stage img {
  width: 100%;
  height: auto;
  display: block;
}

.stage .video {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  pointer-events: none;
}

.stage video {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
  border: 0;
  pointer-events: auto;
}

.panel {
  margin-top: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nav {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  flex-wrap: wrap;
}

.btn,
.info {
  display: inline-flex;
  align-items: center;
  border-radius: 0.65rem;
  padding: 0.58rem 0.85rem;
  text-decoration: none;
  font-weight: 700;
}

.btn {
  border: 1px solid #c2d1ea;
  background: linear-gradient(180deg, #ffffff, #f4f7ff);
  color: #223158;
}

.btn.primary {
  border: none;
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
}

.btn:disabled {
  opacity: 0.35;
  pointer-events: none;
}

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

.badge {
  background: #fff;
  border: 1px solid #d8e0f3;
  color: #34486d;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .top {
    flex-direction: column;
    align-items: flex-start;
  }
}