:root {
  --bg: radial-gradient(circle at 20% 20%, rgba(108, 240, 194, 0.12), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(74, 183, 255, 0.16), transparent 32%),
    #0b1324;
  --card: rgba(255, 255, 255, 0.04);
  --text-strong: #eaf5ff;
  --text-body: #bdc8d9;
  --accent: #6cf0c2;
  --muted: rgba(255, 255, 255, 0.1);
  --border: 1px solid rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-body);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

.page-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.4rem) 3rem;
}

main.page-main {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  margin: 1.5rem 0 3rem;
}

.section-card {
  background: var(--card);
  border: var(--border);
  border-radius: 20px;
  padding: clamp(1.2rem, 3vw, 1.8rem);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.22);
}

.section-card h1,
.section-card h2,
.section-card h3,
.section-card h4 {
  color: var(--text-strong);
  margin-top: 0;
}

h3 {
  padding-top: 1.5rem;
  padding-bottom: 0;
  margin-bottom: 0;
}

.section-card a {
  color: #6cf0c2;
}

.section-card ul {
  padding-left: 1.1rem;
  margin: 0.5rem 0 0;
}

.section-card li + li {
  margin-top: 0.35rem;
}

.page-hero {
  background: linear-gradient(145deg, rgba(12, 24, 39, 0.9), rgba(11, 19, 36, 0.72));
  border: var(--border);
  border-radius: 26px;
  padding: clamp(1.6rem, 3vw, 2.3rem);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
}

.page-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.page-hero h1 {
  color: var(--text-strong);
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin: 0.7rem 0 0.4rem;
  letter-spacing: -0.02em;
}

.page-hero p {
  margin: 0.4rem 0 0;
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.embed-frame {
  width: 100%;
  min-height: 70vh;
  border-radius: 16px;
  border: var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.note {
  border-left: 3px solid var(--accent);
  padding-left: 0.8rem;
  margin: 0.6rem 0 0;
}

.meta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 0.8rem;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.info-actions {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-top: 0.9rem;
  padding-bottom: 1rem;
}

.info-actions .button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #0b1324;
  background: linear-gradient(135deg, #6cf0c2, #4ab7ff);
  border: none;
}

.info-actions .button.secondary {
  color: var(--text-strong);
  background: rgba(255, 255, 255, 0.06);
  border: var(--border);
}

.info-button {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.8rem;
  border-radius: 10px;
  border: var(--border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-strong);
  cursor: pointer;
}

.info-button:hover,
.info-button:focus-visible {
  background: rgba(255, 255, 255, 0.12);
}

canvas {
  background: rgba(255, 255, 255, 0.02);
}

@media (max-width: 640px) {
  .embed-frame {
    min-height: 60vh;
  }
}