/* Pill Tracker — public site styles
   Plain CSS, no build step, mobile-friendly, dark-mode aware. */

:root {
  --text: #111;
  --text-muted: #555;
  --bg: #fff;
  --accent: #4f6bed;
  --accent-hover: #3e57d5;
  --border: #e5e7eb;
  --code-bg: #f5f5f7;
  --table-alt: #fafafa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #eee;
    --text-muted: #aaa;
    --bg: #121212;
    --accent: #7b93ff;
    --accent-hover: #a3b3ff;
    --border: #2a2a2a;
    --code-bg: #1e1e1e;
    --table-alt: #1a1a1a;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

header.site-header {
  padding: 32px 24px 16px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

header.site-header a.logo {
  color: var(--text);
  text-decoration: none;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

header.site-header a.logo:hover {
  color: var(--accent);
}

h1 {
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

h2 {
  font-size: 22px;
  line-height: 1.3;
  margin: 48px 0 16px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 32px;
}

h3 {
  font-size: 18px;
  margin: 32px 0 8px;
}

p, ul, ol {
  margin: 0 0 16px;
}

ul, ol {
  padding-left: 28px;
}

li {
  margin-bottom: 6px;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--accent-hover);
}

strong {
  font-weight: 600;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

code {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-size: 0.9em;
}

pre {
  background: var(--code-bg);
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.88em;
}

pre code {
  background: transparent;
  padding: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 0.95em;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-weight: 600;
  background: var(--table-alt);
}

tr:nth-child(even) td {
  background: var(--table-alt);
}

.meta {
  color: var(--text-muted);
  font-size: 0.95em;
  margin-bottom: 32px;
}

.contact-block {
  background: var(--code-bg);
  padding: 16px 20px;
  border-radius: 8px;
  margin: 24px 0;
}

.contact-block p {
  margin: 6px 0;
}

footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  border-top: 1px solid var(--border);
}

footer a {
  color: var(--text-muted);
  text-decoration: none;
  margin: 0 10px;
}

footer a:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* Landing page specific */
.landing-hero {
  text-align: center;
  padding: 48px 0 32px;
}

.landing-hero h1 {
  font-size: 40px;
  margin-bottom: 16px;
}

.landing-hero .tagline {
  font-size: 20px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.landing-cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 12px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
}

.landing-cta:hover {
  background: var(--accent-hover);
  color: #fff;
}

.landing-links {
  text-align: center;
  padding: 32px 0;
}

.landing-links a {
  margin: 0 12px;
  color: var(--text-muted);
}

@media (max-width: 600px) {
  main { padding: 24px 16px 64px; }
  h1 { font-size: 26px; }
  .landing-hero h1 { font-size: 32px; }
  .landing-hero .tagline { font-size: 17px; }
  h2 { font-size: 19px; }
  body { font-size: 16px; }
}