:root {
  color-scheme: light;
  --brand-bg: #f3f5f8;
  --brand-surface: #ffffff;
  --brand-border: #d9e0e8;
  --brand-border-strong: #c6d0dc;
  --brand-text: #142033;
  --brand-text-muted: #4b5a70;
  --brand-link: #1c3f77;
  --brand-link-hover: #122a53;
  --brand-pill-bg: #edf2f8;
  --brand-pill-text: #1d3557;
  --brand-shadow: 0 1px 2px rgba(15, 23, 42, 0.03);
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  color: var(--brand-text);
  background: var(--brand-bg);
}

a {
  color: var(--brand-link);
}

a:hover {
  color: var(--brand-link-hover);
}

h1,
h2,
h3 {
  letter-spacing: 0.01em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--brand-border);
}

.site-header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.site-brand {
  display: inline-grid;
  gap: 2px;
  text-decoration: none;
  color: var(--brand-text);
}

.site-brand-main {
  font-size: 1rem;
  font-weight: 750;
  line-height: 1.25;
}

.site-brand-sub {
  font-size: 0.7rem;
  color: var(--brand-text-muted);
  line-height: 1.2;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.site-nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--brand-border);
  background: #fff;
  color: var(--brand-link);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.83rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav-link:hover,
.site-nav-link[aria-current="page"] {
  border-color: var(--brand-border-strong);
  background: var(--brand-pill-bg);
  color: var(--brand-link-hover);
}

.site-footer {
  max-width: 1160px;
  margin: 0 auto;
  padding: 18px 12px 24px;
  border-top: 1px solid var(--brand-border);
  color: var(--brand-text-muted);
  font-size: 0.85rem;
}

.site-footer strong {
  color: var(--brand-text);
}

.home-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 16px 56px;
}

.hero,
.quick-start,
.panel {
  background: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--brand-shadow);
}

.hero {
  padding: 28px 22px;
  margin-bottom: 20px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(1.65rem, 2.4vw, 2.05rem);
  line-height: 1.3;
}

.hero p {
  margin: 8px 0;
}

.lede {
  font-weight: 600;
  color: #253349;
}

.quick-start {
  padding: 18px;
  margin-bottom: 18px;
}

.quick-start h2,
.panel h2 {
  margin: 0 0 8px;
  font-size: clamp(1.02rem, 1.6vw, 1.16rem);
  line-height: 1.35;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.quick-link,
.gpu-link,
.entry-link {
  display: block;
  border: 1px solid var(--brand-border-strong);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  text-decoration: none;
  color: var(--brand-link);
  background: #f9fbfd;
  font-weight: 700;
}

.quick-link small {
  display: block;
  margin-top: 4px;
  color: var(--brand-text-muted);
  font-weight: 500;
}

.quick-link:hover,
.gpu-link:hover,
.entry-link:hover {
  background: #f2f6fb;
}

.layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin: 14px 0 24px;
}

.panel {
  padding: 16px;
  margin-bottom: 14px;
}

.panel ul {
  margin: 0;
  padding-left: 18px;
}

.panel li {
  margin: 6px 0;
}

.gpu-links,
.entry-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.gpu-link,
.entry-link {
  display: inline-block;
  border-radius: 999px;
  font-size: 0.92rem;
  padding: 6px 11px;
}

.search-wrap {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

.search-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.search-controls input {
  flex: 1 1 300px;
  min-width: 200px;
  padding: 10px 12px;
  border: 1px solid var(--brand-border-strong);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
}

.search-controls button {
  border: 1px solid #1d3f72;
  background: #1d3f72;
  color: #fff;
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}

.search-controls button:hover {
  background: #16335b;
}

.suggestions {
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 6px;
  display: grid;
  gap: 4px;
}

.suggestions[hidden] {
  display: none;
}

.suggestion-item {
  border: 0;
  background: #fff;
  text-align: left;
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
}

.suggestion-item:hover {
  background: #f2f6fb;
}

.suggestion-type {
  display: inline-block;
  font-size: 0.76rem;
  color: #3f5169;
  border: 1px solid var(--brand-border-strong);
  border-radius: 999px;
  padding: 2px 8px;
  margin-right: 8px;
}

.note {
  color: var(--brand-text-muted);
  font-size: 0.9rem;
  margin-top: 8px;
}

@media (max-width: 740px) {
  .site-header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 480px) {
  .home-container {
    padding: 14px 10px 40px;
  }

  .hero,
  .quick-start,
  .panel {
    border-radius: var(--radius-md);
  }

  .hero {
    padding: 18px 14px;
  }
}