/* eCommerceMVCCore documentation — shared stylesheet. No external fonts/CDNs; system font stack only. */

:root {
  --sidebar-w: 280px;
  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --text: #1e2530;
  --text-muted: #5b6472;
  --border: #e3e8ef;
  --accent: #2f5fd6;
  --accent-dark: #1f42a0;
  --accent-bg: #eaf0fe;
  --sidebar-bg: #161b26;
  --sidebar-text: #c7ceda;
  --sidebar-text-dim: #838da0;
  --sidebar-active-bg: #232a3a;
  --code-bg: #0f1420;
  --code-text: #dbe4f3;
  --warn-bg: #fff6e5;
  --warn-border: #f0c05a;
  --tip-bg: #eafaf1;
  --tip-border: #4caf7d;
  --danger-bg: #fdecec;
  --danger-border: #e0685f;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(20, 25, 40, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, kbd {
  font-family: "Cascadia Code", Consolas, "SFMono-Regular", Menlo, monospace;
  font-size: 0.9em;
}

code {
  background: var(--accent-bg);
  color: var(--accent-dark);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 16px 18px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 16px 0;
}
pre code { background: none; color: inherit; padding: 0; }

/* ---------- layout ---------- */

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: 22px 0 40px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  display: block;
  padding: 0 22px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 14px;
}
.sidebar-brand strong { color: #fff; font-size: 1.05rem; display: block; }
.sidebar-brand span { color: var(--sidebar-text-dim); font-size: 0.78rem; }

.sidebar-group { margin-bottom: 6px; }
.sidebar-group-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--sidebar-text-dim);
  padding: 14px 22px 6px;
}

.sidebar a {
  display: block;
  padding: 7px 22px;
  color: var(--sidebar-text);
  font-size: 0.9rem;
  text-decoration: none;
  border-left: 3px solid transparent;
}
.sidebar a:hover { background: var(--sidebar-active-bg); color: #fff; }
.sidebar a.active {
  background: var(--sidebar-active-bg);
  color: #fff;
  border-left-color: var(--accent);
  font-weight: 600;
}
.sidebar .sub a { padding-left: 36px; font-size: 0.84rem; color: var(--sidebar-text-dim); }
.sidebar .sub a:hover, .sidebar .sub a.active { color: #fff; }

.sidebar-toggle {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 50;
  background: var(--sidebar-bg);
  color: #fff;
  border: none;
  border-radius: 6px;
  width: 40px;
  height: 40px;
  font-size: 1.1rem;
  cursor: pointer;
}

.content-wrap { flex: 1; min-width: 0; }

.topbar {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  padding: 12px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.topbar .crumbs { font-size: 0.85rem; color: var(--text-muted); }
.topbar .links { display: flex; gap: 16px; font-size: 0.85rem; }

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 40px 80px;
}

footer.page-footer {
  border-top: 1px solid var(--border);
  padding: 24px 40px;
  color: var(--text-muted);
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- typography ---------- */

h1 { font-size: 2rem; margin: 0 0 8px; }
h2 { font-size: 1.5rem; margin: 40px 0 12px; padding-top: 6px; border-top: 1px solid var(--border); }
h2:first-of-type { border-top: none; padding-top: 0; }
h3 { font-size: 1.15rem; margin: 28px 0 8px; }
h4 { font-size: 1rem; margin: 20px 0 6px; }
p { margin: 0 0 14px; }
.lede { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 28px; }

ul, ol { margin: 0 0 14px; padding-left: 24px; }
li { margin-bottom: 4px; }

table { border-collapse: collapse; width: 100%; margin: 16px 0 24px; font-size: 0.92rem; }
th, td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; vertical-align: top; }
th { background: var(--bg-alt); font-weight: 600; }
tr:nth-child(even) td { background: #fbfcfe; }

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-get { background: #e4f2ff; color: #0a5ab5; }
.badge-post { background: #e6f8ec; color: #16793e; }
.badge-auth { background: #fdecec; color: #b3271b; }
.badge-anon { background: #f1f1f4; color: #555c68; }

/* ---------- components ---------- */

.callout {
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 18px 0;
  font-size: 0.94rem;
}
.callout p:last-child { margin-bottom: 0; }
.callout-tip { border-left-color: var(--tip-border); background: var(--tip-bg); }
.callout-warn { border-left-color: var(--warn-border); background: var(--warn-bg); }
.callout-danger { border-left-color: var(--danger-border); background: var(--danger-bg); }
.callout-title { font-weight: 700; display: block; margin-bottom: 4px; }

.steps { list-style: none; margin: 20px 0; padding: 0; counter-reset: step; }
.steps > li {
  counter-increment: step;
  position: relative;
  padding: 2px 0 22px 40px;
  border-left: 2px solid var(--border);
  margin-left: 15px;
}
.steps > li:last-child { border-left-color: transparent; padding-bottom: 0; }
.steps > li::before {
  content: counter(step);
  position: absolute;
  left: -15px;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps h4 { margin: 0 0 6px; }

figure.shot {
  margin: 14px 0 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--bg-alt);
}
figure.shot img { display: block; width: 100%; height: auto; }
figure.shot figcaption {
  padding: 8px 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 20px 0 30px;
}
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  background: var(--bg);
  box-shadow: var(--shadow);
}
.card h3 { margin-top: 0; font-size: 1.02rem; }
.card p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 10px; }
.card a.card-link { font-size: 0.85rem; font-weight: 600; }

.kv { margin: 16px 0; }
.kv dt { font-weight: 600; margin-top: 10px; }
.kv dd { margin: 2px 0 0; color: var(--text-muted); }

.route {
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.92rem;
  background: var(--bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
}

@media (max-width: 860px) {
  .sidebar { position: fixed; left: -100%; top: 0; z-index: 40; transition: left 0.2s ease; box-shadow: 4px 0 24px rgba(0,0,0,0.2); }
  .sidebar.open { left: 0; }
  .sidebar-toggle { display: block; }
  .topbar { padding: 12px 20px 12px 60px; }
  main { padding: 28px 20px 60px; }
  footer.page-footer { padding: 20px; }
}