:root {
  color-scheme: dark;
  --bg: #0c111b;
  --panel: #131b2a;
  --panel-alt: #192236;
  --line: #2a3754;
  --text: #eef4ff;
  --muted: #9fb0cf;
  --accent: #79a8ff;
  --accent-strong: #4d88ff;
  --accent-soft: rgba(121, 168, 255, 0.16);
  --success: #4fd18b;
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --shadow: 0 26px 60px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(77, 136, 255, 0.18), transparent 30%),
    radial-gradient(circle at right center, rgba(79, 209, 139, 0.12), transparent 20%),
    var(--bg);
  color: var(--text);
  font: 16px/1.5 "Segoe UI", "Noto Sans", sans-serif;
}

code {
  font-family: "JetBrains Mono", "Fira Code", monospace;
}

.page-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 24px auto;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: rgba(14, 20, 31, 0.92);
  box-shadow: var(--shadow);
}

.hero,
.toolbar,
.program-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(25, 34, 54, 0.98), rgba(19, 27, 42, 0.98));
}

.hero {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 24px;
  padding: 28px;
  margin-bottom: 18px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1,
.toolbar h2 {
  margin: 0 0 10px;
  line-height: 1.1;
}

.hero h1 {
  font-size: clamp(30px, 4vw, 46px);
}

.hero p,
.toolbar p,
.program-description,
.program-tagline,
.meta-item {
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  color: #08111f;
  font-weight: 700;
}

.secondary-button {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-1px);
}

.snippet {
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  overflow-x: auto;
}

.catalog {
  display: grid;
  gap: 18px;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  padding: 24px;
}

.searchbox {
  min-width: 280px;
}

.searchbox span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 14px;
}

.searchbox input {
  width: 100%;
  min-height: 48px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
}

.program-card {
  padding: 22px;
}

.program-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.program-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(77, 136, 255, 0.3), rgba(79, 209, 139, 0.14));
  color: var(--text);
  font-size: 22px;
  font-weight: 700;
}

.program-name {
  font-size: 22px;
  font-weight: 700;
}

.meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 22px;
}

.meta-item {
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  font-size: 13px;
}

.program-actions {
  display: flex;
  gap: 10px;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .searchbox {
    min-width: 0;
  }
}