/* Schismatic site styles
   Clean, readable, no frameworks, no JS. Indigo / dark-purple palette.
*/

:root {
  /* Light theme — soft cool background, indigo accent. */
  --bg: #f4f5fb;
  --bg-panel: #ffffff;
  --bg-code: #ecedf6;
  --fg: #131326;
  --fg-muted: #565a78;
  --accent: #4338ca;          /* indigo-700 */
  --accent-strong: #312e81;   /* indigo-900 */
  --accent-soft: #e6e7fb;     /* indigo-50 */
  --border: #d8dbed;
  --highlight: #e7e3ff;       /* schismatic row highlight (lavender) */
  --shadow: 0 1px 2px rgba(20, 18, 60, 0.06), 0 6px 16px rgba(20, 18, 60, 0.06);
  --radius: 8px;
  --maxw: 1080px;
  --readw: 70ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0d18;            /* near-black with a violet undertone */
    --bg-panel: #141528;
    --bg-code: #1c1d33;
    --fg: #e7e8f5;
    --fg-muted: #9ea2c4;
    --accent: #a5b4fc;         /* indigo-300 — readable on dark bg */
    --accent-strong: #c7d2fe;
    --accent-soft: #1e2042;
    --border: #262947;
    --highlight: #2a234d;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 6px 16px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
}
a:hover { color: var(--accent-strong); text-decoration-thickness: 2px; }

/* ----- header ----- */
.site-header {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(1.1);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand img.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: block;
}
.brand-name { color: var(--fg); }
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.1rem;
  margin-left: auto;
  font-size: 0.95rem;
}
.site-nav a {
  color: var(--fg-muted);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ----- content area ----- */
.content {
  padding: 2rem 1.25rem 3rem;
}

h1 {
  font-size: clamp(1.75rem, 1.2rem + 2.5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}
h2 {
  font-size: 1.4rem;
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
  color: var(--fg);
}
h3 {
  font-size: 1.1rem;
  margin: 0 0 0.4rem;
}

p { margin: 0 0 1rem; max-width: var(--readw); }
.lede { font-size: 1.15rem; color: var(--fg); max-width: var(--readw); }
.meta { color: var(--fg-muted); font-size: 0.9rem; }

code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
  background: var(--bg-code);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
pre.code-block, pre.sample-response {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  overflow-x: auto;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* ----- hero ----- */
.hero {
  padding: 2rem 0 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
  position: relative;
}
.hero h1 {
  font-size: clamp(2.2rem, 1.4rem + 4vw, 3.6rem);
  background: linear-gradient(95deg, var(--accent), #7c3aed 60%, #ec4899);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lede {
  font-size: 1.25rem;
  line-height: 1.55;
}
.hero-sub {
  color: var(--fg-muted);
  max-width: var(--readw);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.25rem;
}
.btn {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--fg);
  text-decoration: none;
  font-weight: 500;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn.primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #fff;
}

/* ----- cards ----- */
.card-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1rem 0 2rem;
}
.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow);
}
.card h3 { color: var(--accent); }
.card p { margin-bottom: 0; }

/* ----- panels ----- */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  margin: 0 0 1.4rem;
  box-shadow: var(--shadow);
}
.panel > p:last-child { margin-bottom: 0; }

/* ----- tables ----- */
.table-scroll {
  overflow-x: auto;
  margin: 0.5rem -0.25rem;
  padding: 0 0.25rem;
}
.data-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.95rem;
  min-width: 560px;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.data-table th {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
  font-weight: 600;
  background: var(--bg);
  border-bottom: 2px solid var(--border);
}
.data-table tbody tr:hover { background: var(--accent-soft); }
.data-table tr.row-highlight { background: var(--highlight); }
.data-table tr.row-highlight:hover { background: var(--highlight); }

.kv-table {
  border-collapse: collapse;
  font-size: 0.95rem;
}
.kv-table th, .kv-table td {
  text-align: left;
  padding: 0.4rem 0.9rem 0.4rem 0;
  vertical-align: top;
}
.kv-table th {
  color: var(--fg-muted);
  font-weight: 500;
  white-space: nowrap;
}

.badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 0.05em 0.65em;
  font-size: 0.72em;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  vertical-align: middle;
}

/* ----- misc ----- */
.steps {
  margin: 0;
  padding-left: 1.25rem;
}
.steps li {
  margin: 0.3rem 0;
  max-width: var(--readw);
}
.legend { padding-left: 1.1rem; }
.legend li { margin: 0.4rem 0; max-width: var(--readw); }
.link-list { padding-left: 1.1rem; }
.link-list li { margin: 0.3rem 0; }

.changelog {
  list-style: none;
  padding: 0;
  margin: 0;
}
.changelog li {
  display: flex;
  gap: 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.changelog li:last-child { border-bottom: 0; }

.version-tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-strong);
  padding: 0.15em 0.55em;
  border-radius: 4px;
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}
.release {
  display: flex;
  gap: 0.85rem;
  align-items: baseline;
  flex-wrap: wrap;
}
.release-note { color: var(--fg); }

.crumbs {
  font-size: 0.9rem;
  color: var(--fg-muted);
  margin: 0 0 0.5rem;
}
.crumbs a { color: var(--fg-muted); }

.sample {
  margin: 0.75rem 0 1.25rem;
  border-left: 3px solid var(--accent);
  padding-left: 0.9rem;
}
.sample-prompt {
  color: var(--fg);
  margin-bottom: 0.4rem;
}

details {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.85rem;
  margin: 0.5rem 0 1rem;
}
details summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--accent);
}
details[open] summary { margin-bottom: 0.5rem; }

/* ----- credits / studies cards ----- */
.credit-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
}
.credit-list li {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 0.95rem;
}
.credit-list li strong { color: var(--accent-strong); }

/* ----- footer ----- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  margin-top: 3rem;
  padding: 1.5rem 0;
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.site-footer p { margin: 0.2rem 0; max-width: none; }
.site-footer a { color: var(--fg-muted); }
.site-footer a:hover { color: var(--accent); }

@media (max-width: 540px) {
  body { font-size: 16px; }
  .content { padding: 1.25rem 1rem 2rem; }
  .panel { padding: 1rem; }
  .site-nav { font-size: 0.9rem; gap: 0.2rem 0.85rem; }
  .brand img.brand-icon { width: 24px; height: 24px; }
}