/*
 * KHAELOR
 * File: website/public/styles.css
 * Description: Single stylesheet for the KHAELOR documentation site — dark default, light variant, terminal-calm aesthetic.
 *
 * Author: Simon-Pierre Boucher
 * Contact: contact@spboucher.ai
 */

/* ───────────────────────── tokens ───────────────────────── */

:root {
  --bg: #0d1017;
  --bg-alt: #12161f;
  --bg-code: #10141d;
  --bg-inline: #1a1f2b;
  --border: #222836;
  --border-soft: #1a1f2a;
  --text: #d8dee9;
  --text-strong: #eceff4;
  --dim: #8b93a5;
  --dimmer: #5c6372;
  --accent: #7aa2f7;
  --accent-soft: rgba(122, 162, 247, 0.12);
  --success: #9ece6a;
  --warning: #e0af68;
  --error: #f7768e;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color-scheme: dark;
}

html[data-theme="light"] {
  --bg: #fbfbfc;
  --bg-alt: #f3f4f7;
  --bg-code: #f5f6f8;
  --bg-inline: #eceef3;
  --border: #dde0e8;
  --border-soft: #e8eaf0;
  --text: #2a3040;
  --text-strong: #14181f;
  --dim: #646b7a;
  --dimmer: #949bab;
  --accent: #3661c4;
  --accent-soft: rgba(54, 97, 196, 0.09);
  --success: #467a1c;
  --warning: #96660e;
  --error: #c53b58;
  color-scheme: light;
}

/* ───────────────────────── base ───────────────────────── */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  color: var(--text-strong);
  line-height: 1.25;
  font-weight: 650;
  margin: 2.2em 0 0.6em;
}
h1 { font-size: 1.9rem; margin-top: 0.5em; }
h2 { font-size: 1.35rem; padding-bottom: 0.35em; border-bottom: 1px solid var(--border-soft); }
h3 { font-size: 1.08rem; }
h4 { font-size: 0.95rem; color: var(--dim); text-transform: uppercase; letter-spacing: 0.06em; }

h2 a.anchor, h3 a.anchor {
  color: var(--dimmer);
  margin-left: 0.4em;
  opacity: 0;
  font-weight: 400;
}
h2:hover a.anchor, h3:hover a.anchor { opacity: 1; }

p.lead { font-size: 1.1rem; color: var(--dim); }

hr { border: none; border-top: 1px solid var(--border-soft); margin: 2.5rem 0; }

/* ───────────────────────── code ───────────────────────── */

code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--bg-inline);
  padding: 0.14em 0.38em;
  border-radius: 4px;
  color: var(--text-strong);
}

pre {
  position: relative;
  background: var(--bg-code);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  overflow-x: auto;
  line-height: 1.55;
  margin: 1.1rem 0;
}
pre code {
  background: none;
  padding: 0;
  font-size: 0.83rem;
  color: var(--text);
  display: block;
}

pre .copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--dim);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity 120ms ease;
}
pre:hover .copy-btn, pre .copy-btn:focus { opacity: 1; }
pre .copy-btn:hover { color: var(--text-strong); border-color: var(--dim); }
pre .copy-btn.copied { color: var(--success); border-color: var(--success); }

/* terminal-flavored blocks (transcripts, panels) */
pre.term {
  background: #0a0d13;
  border-color: #1d2330;
  color: #c6cdda;
}
html[data-theme="light"] pre.term {
  background: #14181f;
  border-color: #14181f;
  color: #c6cdda;
}
pre.term code { color: inherit; }

.t-dim { color: #6b7280; }
.t-accent { color: #7aa2f7; }
.t-ok { color: #9ece6a; }
.t-warn { color: #e0af68; }
.t-err { color: #f7768e; }
.t-b { font-weight: 700; color: #eceff4; }

/* ───────────────────────── layout ───────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-soft);
}
.site-header .inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.7rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.wordmark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  color: var(--text-strong);
}
.wordmark:hover { text-decoration: none; color: var(--accent); }
.wordmark .glyph { color: var(--accent); margin-right: 0.45em; }

.site-header nav { display: flex; gap: 1.2rem; margin-left: auto; align-items: center; }
.site-header nav a {
  color: var(--dim);
  font-size: 0.88rem;
}
.site-header nav a:hover { color: var(--text-strong); text-decoration: none; }
.site-header nav a.active { color: var(--text-strong); }

#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--dim);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.28rem 0.6rem;
  cursor: pointer;
}
#theme-toggle:hover { color: var(--text-strong); border-color: var(--dim); }

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.4rem 4rem;
}

/* docs two-column */
.docs-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}
.sidebar {
  position: sticky;
  top: 4.2rem;
  padding-top: 2rem;
  font-size: 0.87rem;
  max-height: calc(100vh - 4.2rem);
  overflow-y: auto;
}
.sidebar .group {
  margin-bottom: 1.4rem;
}
.sidebar .group-title {
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--dimmer);
  margin-bottom: 0.5rem;
}
.sidebar a {
  display: block;
  color: var(--dim);
  padding: 0.24rem 0.6rem;
  border-left: 2px solid transparent;
  border-radius: 0 4px 4px 0;
}
.sidebar a:hover { color: var(--text-strong); text-decoration: none; }
.sidebar a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-soft);
}

.content { padding-top: 2rem; min-width: 0; }
.content > :first-child { margin-top: 0; }

@media (max-width: 860px) {
  .docs-layout { grid-template-columns: 1fr; gap: 0; }
  .sidebar { position: static; max-height: none; border-bottom: 1px solid var(--border-soft); padding-bottom: 1rem; }
  .sidebar .group { margin-bottom: 0.8rem; }
}

/* ───────────────────────── tables ───────────────────────── */

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.2rem 0;
  font-size: 0.88rem;
}
th, td {
  text-align: left;
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: top;
}
th {
  color: var(--dim);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
td code { white-space: nowrap; }
td.wrap code { white-space: normal; }

kbd {
  font-family: var(--mono);
  font-size: 0.78em;
  background: var(--bg-inline);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 0.1em 0.45em;
  color: var(--text-strong);
  white-space: nowrap;
}

/* ───────────────────────── callouts ───────────────────────── */

.note, .warn {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 8px 8px 0;
  padding: 0.7rem 1.1rem;
  margin: 1.2rem 0;
  font-size: 0.92rem;
}
.warn {
  border-left-color: var(--warning);
  background: color-mix(in srgb, var(--warning) 9%, transparent);
}
.note > :first-child, .warn > :first-child { margin-top: 0; }
.note > :last-child, .warn > :last-child { margin-bottom: 0; }

/* ───────────────────────── hero (index) ───────────────────────── */

.hero {
  padding: 5rem 0 3rem;
  max-width: 780px;
}
.hero .kicker {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  color: var(--accent);
  margin-bottom: 1.2rem;
}
.hero h1 {
  font-size: 2.6rem;
  margin: 0 0 0.9rem;
  letter-spacing: -0.015em;
}
.hero p.tagline {
  font-size: 1.18rem;
  color: var(--dim);
  margin: 0 0 2.2rem;
  max-width: 620px;
}
.hero .principle {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--dimmer);
  margin-top: 1.6rem;
}

.install-line {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.95rem 1.2rem;
  font-family: var(--mono);
  font-size: 0.92rem;
  max-width: 640px;
}
.install-line .prompt { color: var(--success); user-select: none; }
.install-line code { background: none; padding: 0; flex: 1; overflow-x: auto; white-space: nowrap; }
.install-line button {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--dim);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  flex-shrink: 0;
}
.install-line button:hover { color: var(--text-strong); border-color: var(--dim); }
.install-line button.copied { color: var(--success); border-color: var(--success); }

.hero .cta-row { margin-top: 1.3rem; display: flex; gap: 1.4rem; font-size: 0.9rem; }

/* feature grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: 1rem;
  margin: 2.5rem 0;
}
.feature {
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 1.1rem 1.2rem;
  background: var(--bg-alt);
}
.feature .glyph {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.95rem;
}
.feature h3 { margin: 0.4rem 0 0.35rem; font-size: 0.98rem; }
.feature p { margin: 0; font-size: 0.86rem; color: var(--dim); }

.section-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--dimmer);
  margin: 3.5rem 0 1rem;
}

/* footer */
.site-footer {
  border-top: 1px solid var(--border-soft);
  margin-top: 2rem;
}
.site-footer .inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.6rem 1.4rem;
  display: flex;
  gap: 1.5rem;
  font-size: 0.82rem;
  color: var(--dimmer);
  flex-wrap: wrap;
}
.site-footer a { color: var(--dim); }

/* prev/next pager */
.pager {
  display: flex;
  justify-content: space-between;
  margin-top: 3.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border-soft);
  font-size: 0.9rem;
  gap: 1rem;
}
.pager .label { display: block; font-size: 0.72rem; color: var(--dimmer); text-transform: uppercase; letter-spacing: 0.08em; }
.pager .next { text-align: right; margin-left: auto; }

@media (max-width: 640px) {
  .hero { padding-top: 3rem; }
  .hero h1 { font-size: 2rem; }
  body { font-size: 15px; }
}