:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-elevated: rgba(13, 23, 40, 0.82);
  --bg-soft: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --text: #eaf0f8;
  --muted: #a0afc3;
  --muted-strong: #c6d2e2;
  --primary: #7dd3fc;
  --primary-strong: #38bdf8;
  --accent: #a78bfa;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.14), transparent 32%),
    radial-gradient(circle at top right, rgba(167, 139, 250, 0.12), transparent 28%),
    linear-gradient(180deg, #06101d 0%, #091224 45%, #040913 100%);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 42px;
}

.top-nav {
  position: sticky;
  top: 14px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding: 14px 18px;
  border-radius: 999px;
  background: rgba(6, 12, 22, 0.78);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  color: #03111b;
  background: linear-gradient(135deg, var(--primary-strong), #22c55e);
  font-size: 0.95rem;
}

.brand-text {
  font-size: 1.05rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--muted-strong);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-weight: 700;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
  border-color: rgba(125, 211, 252, 0.3);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(320px, 0.95fr);
  gap: 24px;
  align-items: stretch;
  margin-bottom: 26px;
}

.hero-copy,
.hero-panel,
.toolbar,
.updates .card,
.footer {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero-copy {
  border-radius: var(--radius-xl);
  padding: 34px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #bfe9ff;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.2);
}

.eyebrow-secondary {
  margin-bottom: 14px;
  background: rgba(167, 139, 250, 0.12);
  color: #e3d9ff;
  border-color: rgba(167, 139, 250, 0.2);
}

.hero h1 {
  margin: 18px 0 12px;
  font-size: clamp(2.35rem, 4vw, 4.55rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  max-width: 12ch;
}

.lead {
  margin: 0;
  max-width: 62ch;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--primary-strong), #22c55e);
  color: #03111b;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.hero-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  align-content: start;
  border-radius: var(--radius-xl);
  padding: 14px;
}

.panel-card {
  min-height: 132px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.panel-card-wide {
  grid-column: 1 / -1;
}

.panel-label,
.panel-subtitle {
  display: block;
  color: var(--muted);
}

.panel-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}

.panel-card strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.panel-subtitle {
  margin-top: 8px;
  font-size: 0.92rem;
}

.source-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.source-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
  border: 1px solid transparent;
}

.source-codex {
  background: rgba(56, 189, 248, 0.12);
  color: #a5e7ff;
  border-color: rgba(56, 189, 248, 0.2);
}

.source-claude {
  background: rgba(167, 139, 250, 0.14);
  color: #d7c8ff;
  border-color: rgba(167, 139, 250, 0.24);
}

.source-copilot {
  background: rgba(34, 197, 94, 0.12);
  color: #baf7d1;
  border-color: rgba(34, 197, 94, 0.2);
}

.content {
  display: grid;
  gap: 16px;
}

.reference-grid {
  display: grid;
  gap: 16px;
  padding: 22px;
  border-radius: var(--radius-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.blog-section {
  display: grid;
  gap: 16px;
  padding: 22px;
  border-radius: var(--radius-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.blog-header {
  display: grid;
  gap: 10px;
}

.blog-header h2 {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
}

.blog-intro {
  margin: 0;
  color: var(--muted);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.blog-card {
  display: grid;
  gap: 10px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.blog-role {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(125, 211, 252, 0.12);
  color: #bfe9ff;
}

.blog-card h3 {
  margin: 0;
  font-size: 1.03rem;
  line-height: 1.35;
}

.blog-card p {
  margin: 0;
  color: var(--muted-strong);
  line-height: 1.6;
}

.reference-header {
  display: grid;
  gap: 10px;
}

.reference-header h2 {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
}

.reference-copy {
  margin: 0;
  color: var(--muted);
}

.reference-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.reference-card {
  display: grid;
  gap: 8px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.reference-card:hover {
  transform: translateY(-1px);
  border-color: rgba(125, 211, 252, 0.3);
  text-decoration: none;
}

.reference-card span {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.reference-card strong {
  font-size: 1.03rem;
  line-height: 1.35;
}

.reference-card small {
  color: var(--muted-strong);
  line-height: 1.5;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 16px;
  border-radius: 22px;
  padding: 18px;
  position: sticky;
  top: 16px;
  z-index: 2;
}

.search-wrap,
.filter-wrap {
  display: grid;
  gap: 8px;
}

.search-wrap label,
.filter-wrap label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

#search,
#filter {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: rgba(4, 10, 20, 0.75);
  color: var(--text);
  padding: 0 14px;
  font: inherit;
}

#search::placeholder {
  color: #7487a2;
}

#search:focus,
#filter:focus {
  outline: 2px solid rgba(125, 211, 252, 0.45);
  outline-offset: 2px;
}

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

.updates {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}

.card {
  display: grid;
  gap: 14px;
  border-radius: var(--radius-lg);
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.025)),
    var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.09);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(125, 211, 252, 0.25);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.42);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.card h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.card h3 a {
  color: var(--text);
}

.card h3 a:hover {
  color: white;
}

.card-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge-codex {
  background: rgba(56, 189, 248, 0.12);
  color: #9fe1ff;
}

.badge-claude {
  background: rgba(167, 139, 250, 0.14);
  color: #dccfff;
}

.badge-copilot {
  background: rgba(34, 197, 94, 0.12);
  color: #c4f4d5;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 0.86rem;
}

.summary {
  color: var(--muted-strong);
  line-height: 1.6;
}

.summary p {
  margin: 0;
}

.empty-state,
.error-state {
  max-width: 720px;
  margin: 32px auto;
  padding: 28px;
  border-radius: var(--radius-lg);
  text-align: center;
}

.empty-state h3,
.error-state h3 {
  margin: 0 0 8px;
}

.empty-state p,
.error-state p {
  margin: 0;
  color: var(--muted);
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  border-radius: 22px;
  margin-top: 18px;
  padding: 18px 20px;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer code {
  color: #dbeafe;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 6px;
  border-radius: 6px;
}

@media (max-width: 980px) {
  .top-nav {
    border-radius: 22px;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .toolbar {
    grid-template-columns: 1fr;
    position: static;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 100%);
    padding-top: 14px;
  }

  .top-nav {
    position: static;
    flex-direction: column;
    align-items: flex-start;
    border-radius: 18px;
  }

  .hero-copy,
  .hero-panel,
  .toolbar,
  .footer,
  .card {
    border-radius: 18px;
  }

  .hero-copy {
    padding: 24px;
  }

  .hero-panel {
    grid-template-columns: 1fr;
  }

  .panel-card-wide {
    grid-column: auto;
  }

  .blog-section,
  .reference-grid {
    padding: 18px;
  }

  .card-header {
    flex-direction: column;
  }
}