:root {
  --bg: #05070f;
  --panel: rgba(10, 14, 26, 0.9);
  --border: rgba(255, 255, 255, 0.08);
  --text: #f5f5fa;
  --muted: rgba(245, 245, 250, 0.7);
  --accent: #f5b97a;
  --accent-2: #7bc4ff;
  --font-display: "Fraunces", serif;
  --font-body: "Manrope", "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
  font-family: var(--font-body);
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1000px 800px at 10% 0%, rgba(245, 185, 122, 0.15), transparent 55%),
    radial-gradient(900px 700px at 90% -10%, rgba(123, 196, 255, 0.2), transparent 55%),
    var(--bg);
  color: var(--text);
}

.demo-shell {
  width: min(1200px, 92vw);
  margin: 40px auto 60px;
  display: grid;
  gap: 20px;
}

.demo-header {
  background: var(--panel);
  padding: 28px;
  border-radius: 28px;
  border: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.4);
}

.demo-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 6px 0 10px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--accent);
  font-size: 0.78rem;
}

.return-link {
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
}

.role-selector {
  display: flex;
  gap: 10px;
  background: var(--panel);
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 8px;
  justify-content: center;
}

.role-selector button {
  flex: 1;
  border: none;
  border-radius: 999px;
  padding: 12px;
  background: transparent;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.role-selector button.active {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #05070f;
}

.demo-panel {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
}

.section-nav {
  background: var(--panel);
  border-radius: 28px;
  border: 1px solid var(--border);
  padding: 20px;
  display: grid;
  gap: 10px;
  height: fit-content;
}

.section-nav button {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
}

.section-nav button.active {
  border-color: var(--accent);
  color: var(--text);
}

.section-content {
  background: var(--panel);
  border-radius: 28px;
  border: 1px solid var(--border);
  padding: 28px;
  display: grid;
  gap: 24px;
}

.section-summary h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 2rem;
}

.section-summary p {
  color: var(--muted);
  margin-top: 6px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.card-grid article {
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.02);
  min-height: 160px;
}

.card-grid h3 {
  margin: 0 0 8px;
}

.card-grid ul {
  padding-left: 18px;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

.list-panel {
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.02);
}

.list-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 10px;
}

.list-panel ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.list-panel li {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.2);
  cursor: pointer;
}

.list-panel li:hover,
.list-panel li.active {
  border-color: var(--accent);
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .demo-panel {
    grid-template-columns: 1fr;
  }

  .section-nav {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}