/* MedAdvisor — shared styles.
   Deliberately one small stylesheet, no framework, no build step: this is a
   temporary GitHub Pages home until the product name and domain settle.
   Design tokens track the Localabs site so the two read as siblings. */

:root {
  --blue-400: #5AC8FA;
  --blue-500: #2A8CF7;
  --blue-600: #007AFF;
  --blue-700: #0058C7;

  --green-500: #34C759;
  --orange-500: #FF9F0A;
  --red-500: #FF3B30;

  --bg: oklch(98% 0.005 240);
  --bg-2: oklch(96% 0.012 240);
  --ink: oklch(16% 0.020 250);
  --ink-2: oklch(45% 0.015 250);
  --ink-3: oklch(60% 0.012 250);

  --glass-border: rgba(10, 18, 35, 0.08);
  --hairline: rgba(10, 18, 35, 0.10);
  --card-shadow: 0 1px 2px rgba(10,18,35,0.04), 0 18px 48px -20px rgba(10,18,35,0.20);
  --accent: var(--blue-600);

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", system-ui, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter Tight", system-ui, sans-serif;
  --font-mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;

  --pad-x: clamp(18px, 4vw, 28px);
  --measure: 68ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: oklch(9% 0.025 250);
    --bg-2: oklch(13% 0.030 250);
    --ink: oklch(96% 0.005 240);
    --ink-2: oklch(75% 0.020 240);
    --ink-3: oklch(60% 0.015 240);
    --glass-border: rgba(255, 255, 255, 0.10);
    --hairline: rgba(255, 255, 255, 0.10);
    --card-shadow: 0 18px 48px -20px rgba(0,0,0,0.6);
    --accent: var(--blue-400);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* Soft ambient wash, fixed so it doesn't repaint on scroll. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60vw 50vh at 15% -5%, color-mix(in oklab, var(--blue-400) 16%, transparent), transparent 70%),
    radial-gradient(50vw 40vh at 95% 5%, color-mix(in oklab, var(--blue-600) 12%, transparent), transparent 70%);
}

.container { width: min(100%, 1040px); margin: 0 auto; padding: 0 var(--pad-x); }
.narrow { width: min(100%, 760px); margin: 0 auto; padding: 0 var(--pad-x); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--hairline);
}
.nav-inner { display: flex; align-items: center; gap: 16px; height: 58px; }
.brand {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-display); font-weight: 700; font-size: 16.5px;
  letter-spacing: -0.01em; color: var(--ink); text-decoration: none;
}
.brand svg { display: block; }
.nav-links { margin-left: auto; display: flex; gap: 20px; }
.nav-links a {
  color: var(--ink-2); text-decoration: none; font-size: 14.5px; font-weight: 500;
}
.nav-links a:hover { color: var(--accent); }

/* ---------- type ---------- */
h1, h2, h3 { font-family: var(--font-display); letter-spacing: -0.022em; line-height: 1.15; }
h1 { font-size: clamp(32px, 5.2vw, 52px); font-weight: 800; margin: 0 0 18px; }
h2 { font-size: clamp(23px, 3vw, 30px); font-weight: 700; margin: 52px 0 14px; }
h3 { font-size: clamp(18px, 2.2vw, 21px); font-weight: 700; margin: 34px 0 10px; }
p { margin: 0 0 18px; }
a { color: var(--accent); }
strong { font-weight: 650; }

.lead { font-size: clamp(18px, 2.2vw, 21px); color: var(--ink-2); line-height: 1.6; }
.muted { color: var(--ink-3); }
.small { font-size: 14.5px; }

.gradient-text {
  background: linear-gradient(100deg, var(--blue-600), var(--blue-400));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- pieces ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 13px; border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: color-mix(in oklab, var(--bg-2) 70%, transparent);
  font-size: 13px; font-weight: 600; color: var(--ink-2);
  margin-bottom: 20px;
}
.led {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green-500);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--green-500) 22%, transparent);
}

.card {
  border: 1px solid var(--glass-border);
  background: color-mix(in oklab, var(--bg-2) 60%, transparent);
  border-radius: 16px;
  padding: 20px 22px;
  box-shadow: var(--card-shadow);
}

.callout {
  border-left: 3px solid var(--accent);
  background: color-mix(in oklab, var(--accent) 7%, transparent);
  border-radius: 0 12px 12px 0;
  padding: 14px 18px;
  margin: 26px 0;
}
.callout p:last-child { margin-bottom: 0; }

/* tables */
.table-wrap { overflow-x: auto; margin: 22px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--hairline); }
th { font-weight: 650; color: var(--ink-2); font-size: 13.5px; text-transform: uppercase; letter-spacing: .04em; }
td.num, th.num { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
tr.highlight td { background: color-mix(in oklab, var(--accent) 8%, transparent); font-weight: 600; }

pre {
  background: color-mix(in oklab, var(--ink) 5%, transparent);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.55;
}
code { font-family: var(--font-mono); font-size: 0.92em; }
p code, li code, td code {
  background: color-mix(in oklab, var(--ink) 7%, transparent);
  padding: 1px 5px; border-radius: 5px;
}

ul, ol { padding-left: 22px; margin: 0 0 18px; }
li { margin-bottom: 7px; }

hr { border: none; border-top: 1px solid var(--hairline); margin: 44px 0; }

/* ---------- article ---------- */
.post { padding: 48px 0 90px; }
.post-body { max-width: var(--measure); }
.post-meta { color: var(--ink-3); font-size: 14.5px; margin-bottom: 26px; }
.post-meta time { font-variant-numeric: tabular-nums; }

.figure-note { font-size: 13.5px; color: var(--ink-3); margin-top: -8px; }

/* ---------- blog index ---------- */
.post-list { list-style: none; padding: 0; margin: 32px 0 0; }
.post-list li { margin-bottom: 14px; }
.post-link {
  display: block; text-decoration: none; color: inherit;
  border: 1px solid var(--glass-border);
  background: color-mix(in oklab, var(--bg-2) 55%, transparent);
  border-radius: 16px; padding: 20px 22px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.post-link:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--accent) 40%, var(--glass-border));
  box-shadow: var(--card-shadow);
}
.post-link h3 { margin: 0 0 6px; }
.post-link p { margin: 0; color: var(--ink-2); font-size: 15.5px; }
.post-link .date { color: var(--ink-3); font-size: 13.5px; font-variant-numeric: tabular-nums; }

/* ---------- hero / home ---------- */
.hero { padding: clamp(56px, 9vw, 104px) 0 clamp(40px, 6vw, 72px); }
.hero-grid { display: grid; gap: 28px; }
.feature-grid {
  display: grid; gap: 16px; margin: 28px 0 0;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}
.feature-grid h3 { margin: 0 0 6px; font-size: 16.5px; }
.feature-grid p { margin: 0; font-size: 15px; color: var(--ink-2); }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--hairline);
  padding: 30px 0 44px;
  color: var(--ink-3); font-size: 14px;
}
.footer-inner { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.footer a { color: var(--ink-2); text-decoration: none; }
.footer a:hover { color: var(--accent); }
.footer .spacer { margin-left: auto; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}