:root {
  --bg:      oklch(97% 0.012 80);
  --surface: oklch(99% 0.005 80);
  --fg:      oklch(20% 0.02 60);
  --muted:   oklch(48% 0.015 60);
  --border:  oklch(89% 0.012 80);
  --accent:  oklch(58% 0.16 35);
  --success: oklch(62% 0.17 145);
  --danger:  oklch(55% 0.2 25);
  --font-display: 'Iowan Old Style', 'Charter', Georgia, serif;
  --font-body:    -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono:    ui-monospace, 'JetBrains Mono', Menlo, monospace;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body { background: var(--bg); color: var(--fg); font-family: var(--font-body); line-height: 1.5; }
a, button { touch-action: manipulation; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px;
}
.topnav {
  position: sticky; top: 0; z-index: 100; min-height: 64px;
  background: oklch(97% 0.012 80 / 0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 8px 24px; display: flex; align-items: center; gap: 24px;
}
.brand {
  font-family: var(--font-display); font-size: 20px; font-weight: 600;
  letter-spacing: -0.01em; color: var(--fg); white-space: nowrap; text-decoration: none;
  display: flex; align-items: center; gap: 8px;
}
.brand img { width: 48px; height: 48px; border-radius: 10px; object-fit: contain; }
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 20px; margin-inline-start: auto; align-items: center; }
.nav-links a { font-size: 13px; color: var(--muted); text-decoration: none; letter-spacing: .02em; }
.nav-links a:hover { color: var(--accent); }
.hero {
  max-width: 1160px; margin: 0 auto; padding: 54px 24px 28px;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center;
}
.eyebrow {
  font-family: var(--font-mono); color: var(--accent); font-size: 12px;
  letter-spacing: .08em; text-transform: uppercase; margin-bottom: 12px;
}
h1 {
  font-family: var(--font-display); font-size: clamp(34px, 5vw, 52px);
  line-height: 1.08; letter-spacing: -.03em; margin-bottom: 14px;
}
.subtitle { color: var(--muted); font-size: 16px; line-height: 1.75; max-width: 680px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.btn {
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
  padding: 0 18px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); color: var(--fg); text-decoration: none; font-size: 14px;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--surface); }
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary:hover { color: var(--surface); opacity: .9; }
.summary-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 18px;
  padding: 22px; box-shadow: 0 12px 40px oklch(20% 0.02 60 / .07);
}
.summary-card h2 { font-family: var(--font-display); font-size: 24px; margin-bottom: 10px; }
.summary-list { display: grid; gap: 10px; margin-top: 14px; }
.summary-list div {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg);
  font-size: 13px; color: var(--muted);
}
.summary-list strong { color: var(--fg); }
.section { max-width: 1160px; margin: 0 auto; padding: 24px; }
.section-head {
  display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 16px;
}
.section h2 {
  font-family: var(--font-display); font-size: clamp(26px, 3vw, 34px);
  line-height: 1.15; letter-spacing: -.02em;
}
.section-note { color: var(--muted); font-size: 14px; max-width: 650px; line-height: 1.7; margin-top: 6px; }
.provider-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.provider-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px;
  text-decoration: none; color: inherit; display: flex; flex-direction: column; gap: 12px;
  min-height: 220px; transition: border-color .15s, transform .15s, box-shadow .15s;
}
.provider-card:hover {
  border-color: var(--accent); transform: translateY(-2px);
  box-shadow: 0 8px 24px oklch(20% 0.02 60 / .07);
}
.card-top { display: flex; align-items: center; gap: 10px; }
.logo {
  width: 42px; height: 42px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  color: var(--surface); font-family: var(--font-display); font-size: 18px; font-weight: 700; flex: none;
}
.name { font-weight: 700; line-height: 1.25; }
.category { margin-inline-start: auto; color: var(--muted); font-size: 12px; white-space: nowrap; }
.desc { color: var(--muted); font-size: 13px; line-height: 1.65; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.tag {
  font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  background: oklch(97% 0.01 80); border: 1px solid var(--border); border-radius: 999px; padding: 3px 8px;
}
.status { color: var(--success); font-size: 12px; }
.empty {
  grid-column: 1 / -1; background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  padding: 32px; color: var(--muted); text-align: center;
}
.guide-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.guide-card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
.guide-card h3 { margin-bottom: 8px; }
.guide-card p { color: var(--muted); font-size: 14px; line-height: 1.75; }
.topic-links { display: flex; flex-wrap: wrap; gap: 10px; }
.topic-links a { color: var(--accent); border: 1px solid var(--border); background: var(--surface); border-radius: 999px; padding: 8px 12px; text-decoration: none; font-size: 13px; }
.footer { max-width: 1160px; margin: 32px auto 0; padding: 24px; border-top: 1px solid var(--border); color: var(--muted); font-size: 12px; text-align: center; }
@media (max-width: 860px) {
  .hero, .guide-grid { grid-template-columns: 1fr; }
  .section-head { align-items: start; flex-direction: column; }
}
@media (max-width: 640px) {
  .topnav { padding: 8px 16px; flex-wrap: wrap; gap: 12px; }
  .brand { font-size: 18px; }
  .brand img { width: 40px; height: 40px; }
  .nav-links { width: 100%; gap: 12px; overflow-x: auto; padding-bottom: 2px; }
  .nav-links a { min-height: 36px; display: inline-flex; align-items: center; white-space: nowrap; }
  .hero, .section { padding-left: 16px; padding-right: 16px; }
}