/* Shared styling for the 02Agent OSM Downloader task guides.
   Palette follows REFERENCE_MANUAL.html so the whole site reads as one book. */

:root {
  --bg-primary: #fafbfc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f2f5;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a5a;
  --text-muted: #6b7280;
  --border: #d1d5db;
  --border-light: #e5e7eb;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: #dbeafe;
  --brand: #2f7d5b;
  --brand-light: #e6f2ec;
  --code-bg: #f1f5f9;
  --code-text: #0f172a;
  --table-header-bg: #eef2ff;
  --table-header-text: #1e3a5f;
  --table-stripe: #f8fafc;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.09);
  --radius: 6px;
  --radius-lg: 12px;
  --shot-frame: #e5e7eb;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-primary: #0f1117;
    --bg-secondary: #161822;
    --bg-tertiary: #1e2030;
    --text-primary: #e2e4e9;
    --text-secondary: #b0b3bd;
    --text-muted: #8b8f9c;
    --border: #2d3040;
    --border-light: #252838;
    --accent: #60a5fa;
    --accent-hover: #93bbfd;
    --accent-light: #1e293b;
    --brand: #4dad7a;
    --brand-light: #16281f;
    --code-bg: #1e2235;
    --code-text: #e2e8f0;
    --table-header-bg: #1e2440;
    --table-header-text: #bfd9fe;
    --table-stripe: #1a1d2b;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.45);
    --shot-frame: #2d3040;
  }
}

:root[data-theme="dark"] {
  --bg-primary: #0f1117;
  --bg-secondary: #161822;
  --bg-tertiary: #1e2030;
  --text-primary: #e2e4e9;
  --text-secondary: #b0b3bd;
  --text-muted: #8b8f9c;
  --border: #2d3040;
  --border-light: #252838;
  --accent: #60a5fa;
  --accent-hover: #93bbfd;
  --accent-light: #1e293b;
  --brand: #4dad7a;
  --brand-light: #16281f;
  --code-bg: #1e2235;
  --code-text: #e2e8f0;
  --table-header-bg: #1e2440;
  --table-header-text: #bfd9fe;
  --table-stripe: #1a1d2b;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.45);
  --shot-frame: #2d3040;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
}

.wrap {
  max-width: 1020px;
  margin: 0 auto;
  padding: 28px 24px 90px;
}

/* ── Navigation ─────────────────────────────────────────────── */
.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-bottom: 18px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.86rem;
}

.topbar a { color: var(--accent); text-decoration: none; }
.topbar a:hover { color: var(--accent-hover); text-decoration: underline; }
.topbar .spacer { flex: 1; }

.mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  flex: none;
}

/* ── Headings ───────────────────────────────────────────────── */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--brand);
  margin: 0 0 6px;
}

h1 { font-size: 2.05rem; line-height: 1.2; margin: 0 0 12px; }
h2 {
  font-size: 1.3rem;
  margin: 46px 0 14px;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
}
h3 { font-size: 1.03rem; margin: 26px 0 8px; }

.lead {
  font-size: 1.06rem;
  color: var(--text-secondary);
  margin: 0 0 8px;
  max-width: 72ch;
}

p { max-width: 72ch; }

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

/* ── Step layout: prose beside a real screenshot ────────────── */
.step {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
  gap: 30px;
  align-items: start;
  margin: 30px 0;
  padding: 22px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.step.wide { grid-template-columns: minmax(0, 1fr); }

.step-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-size: 0.82rem;
  flex: none;
}

.step-head h3 { margin: 0; font-size: 1.06rem; }
.step p:last-child { margin-bottom: 0; }

figure { margin: 0; }

figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--shot-frame);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  background: var(--bg-tertiary);
}

figcaption {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-top: 8px;
  line-height: 1.5;
}

/* ── Cards on the hub page ──────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 16px;
  margin: 26px 0;
}

.card {
  display: block;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand);
}

.card .num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand);
}

.card h3 { margin: 6px 0 6px; font-size: 1.05rem; }
.card p { margin: 0; font-size: 0.88rem; color: var(--text-secondary); }

/* ── Callouts ───────────────────────────────────────────────── */
.note, .warn {
  border-left: 4px solid var(--accent);
  background: var(--accent-light);
  padding: 14px 18px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 20px 0;
  max-width: 72ch;
}

.warn { border-left-color: #d97706; background: rgba(217, 119, 6, 0.11); }
.note p, .warn p { margin: 0; max-width: none; font-size: 0.92rem; }
.note strong, .warn strong { display: block; margin-bottom: 3px; }

/* ── Tables and code ────────────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.89rem;
}

thead th {
  background: var(--table-header-bg);
  color: var(--table-header-text);
  text-align: left;
  padding: 10px 12px;
  border-bottom: 2px solid var(--border);
}

tbody td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

tbody tr:nth-child(even) { background: var(--table-stripe); }

.scroll-x { overflow-x: auto; }

code, kbd {
  font-family: "Cascadia Code", Consolas, monospace;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.87em;
}

pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 14px 16px;
  border-radius: var(--radius);
  overflow-x: auto;
  border: 1px solid var(--border-light);
  font-size: 0.85rem;
  line-height: 1.6;
}

pre code { background: none; padding: 0; }

ul, ol { max-width: 72ch; padding-left: 22px; }
li { margin: 5px 0; }

/* ── Footer ─────────────────────────────────────────────────── */
.pager {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  margin-top: 50px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  font-size: 0.9rem;
}

footer.legal {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
  font-size: 0.78rem;
  color: var(--text-muted);
}

footer.legal p { max-width: none; margin: 4px 0; }

@media (max-width: 820px) {
  .step { grid-template-columns: minmax(0, 1fr); }
  h1 { font-size: 1.7rem; }
}