/* Koskari landing page styles.
   Shared tokens live in :root so fonts and colors can be tweaked in one place.
   Layout, type, and interactive behavior all live here; the index template
   only carries structure and class names.
   Every foreground token meets WCAG AA 4.5:1 against the surfaces it is
   used on. */

:root {
  /* fonts */
  --ko-font-body: "Hanken Grotesk", sans-serif;
  --ko-font-display: "Bricolage Grotesque", sans-serif;
  --ko-font-mono: "JetBrains Mono", monospace;

  /* surfaces */
  --ko-bg: #F7F3EA;
  --ko-bg-soft: #FBF8F1;
  --ko-bg-chrome: #F5EFE2;
  --ko-bg-card: #fff;
  --ko-bg-ink: #1c1812;
  --ko-bg-ink-deep: #100d09;
  --ko-bg-pill: #EFE7D6;

  /* text */
  --ko-fg: #211C16;
  --ko-fg-muted: #5C544A;
  --ko-fg-soft: #5f5747;
  --ko-fg-nav: #534b40;
  --ko-fg-faint: #726654;
  --ko-fg-ink: #EDE6D7;
  --ko-fg-ink-soft: #B9B0A0;
  --ko-fg-ink-dim: #8B8070;
  --ko-fg-ink-prompt: #847A68;
  --ko-fg-code: #3A332B;
  --ko-fg-code-shell: #E7DFD0;
  --ko-fg-footer-end: #7D6D4C;

  /* accents */
  --ko-accent: #936617;
  --ko-accent-bright: #E8B84A;
  --ko-accent-warm: #A25D36;
  --ko-btn-primary-fg: #2c2206;
  --ko-btn-primary-top: #ecc356;
  --ko-btn-primary-bot: #d4a32c;
  --ko-btn-secondary-fg: #3b342b;
  --ko-prompt-green: #7C8B40;

  /* borders */
  --ko-border: #E9E0CF;
  --ko-border-card: #ECE3D2;
  --ko-border-soft: #EFE7D6;
  --ko-border-btn: #E2D8C5;
  --ko-border-ink: #3a342a;
  --ko-border-ink-box: #2e2a21;

  /* code tokens */
  --ko-tok-kw: #936617;
  --ko-tok-fn: #4F6E8F;
  --ko-tok-num: #96682E;
  --ko-tok-str: #6B7737;
  --ko-tok-dec: #A25D36;
  --ko-tok-param: #7B705F;
  --ko-tok-pn: #7E7057;

  /* spacing */
  --ko-pad-x: 56px;
  --ko-radius-sm: 8px;
  --ko-radius-md: 10px;
  --ko-radius-xl: 13px;
  --ko-radius-pill: 99px;

  /* code window measure */
  --ko-code-measure: 70ch;

  /* shadows */
  --ko-shadow-btn: 0 6px 16px rgba(190, 150, 40, .28);
  --ko-shadow-code: 0 10px 30px rgba(60, 44, 16, .07);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ko-bg);
}

/* === Page shell === */

.ko-page {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--ko-bg);
  overflow: hidden;
  font-family: var(--ko-font-body);
  color: var(--ko-fg);
}

/* === Nav === */

.ko-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px var(--ko-pad-x);
  border-bottom: 1px solid var(--ko-border);
}

.ko-brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.ko-brand-name {
  font-family: var(--ko-font-display);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: -.01em;
}

.ko-version {
  font-family: var(--ko-font-mono);
  font-size: 11px;
  color: var(--ko-fg-faint);
  background: var(--ko-bg-pill);
  padding: 3px 8px;
  border-radius: var(--ko-radius-pill);
  margin-left: 4px;
}

.ko-nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 15px;
  font-weight: 600;
}

.ko-link {
  color: var(--ko-fg-nav);
  text-decoration: none;
  transition: color .15s ease, opacity .15s ease;
}

.ko-link:hover { color: var(--ko-accent); }

/* === Inline links in prose === */

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

.ko-text-link:hover { text-decoration-thickness: 2px; }

.ko-ink-link {
  color: var(--ko-accent-bright);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* === Opening === */

.ko-opening {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 40px;
  align-items: center;
  padding: 72px var(--ko-pad-x) 60px;
}

.ko-h1 {
  font-family: var(--ko-font-display);
  font-weight: 700;
  font-size: 62px;
  line-height: 1.02;
  letter-spacing: -.025em;
  margin: 0 0 22px;
}

.ko-accent { color: var(--ko-accent); }

.ko-lede {
  font-size: 18.5px;
  line-height: 1.6;
  color: var(--ko-fg-muted);
  max-width: 34em;
  margin: 0 0 32px;
}

.ko-cta-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.ko-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15.5px;
  border-radius: var(--ko-radius-sm);
  text-decoration: none;
  transition: transform .12s ease, box-shadow .18s ease, background .18s ease;
}

.ko-btn:hover { transform: translateY(-1px); }

.ko-btn:focus-visible {
  outline: 3px solid var(--ko-accent);
  outline-offset: 3px;
}

.ko-btn-primary {
  background: linear-gradient(var(--ko-btn-primary-top), var(--ko-btn-primary-bot));
  color: var(--ko-btn-primary-fg);
  font-weight: 700;
  padding: 14px 24px;
  box-shadow: var(--ko-shadow-btn);
}

.ko-btn-primary::after {
  content: "\2192";
  font-family: var(--ko-font-mono);
}

.ko-btn-secondary {
  background: var(--ko-bg-card);
  color: var(--ko-btn-secondary-fg);
  font-weight: 600;
  padding: 13px 22px;
  border: 1px solid var(--ko-border-btn);
}

.ko-install {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  background: var(--ko-bg-ink);
  border-radius: 9px;
  padding: 13px 18px;
  max-width: 34em;
}

.ko-install-cmd {
  font-family: var(--ko-font-mono);
  font-size: 14px;
  color: var(--ko-fg-code-shell);
}

.ko-prompt { color: var(--ko-prompt-green); }

.ko-install-soon {
  margin-left: auto;
  font-family: var(--ko-font-mono);
  font-size: 10.5px;
  color: var(--ko-fg-ink-dim);
  letter-spacing: .05em;
}

/* === Sections === */

.ko-section {
  padding: 18px var(--ko-pad-x) 64px;
}

.ko-section-tight {
  padding: 0 var(--ko-pad-x) 66px;
}

.ko-label {
  font-family: var(--ko-font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ko-accent);
  margin: 0 0 22px;
}

.ko-label-tight { margin-bottom: 14px; }

.ko-section-title {
  font-family: var(--ko-font-display);
  font-weight: 700;
  font-size: 34px;
  letter-spacing: -.02em;
  margin: 0 0 6px;
}

.ko-section-title-spaced { margin-top: 44px; }

.ko-section-lede {
  font-size: 16px;
  line-height: 1.55;
  color: var(--ko-fg-soft);
  max-width: 32em;
  margin: 0 0 22px;
}

.ko-inline-code {
  font-family: var(--ko-font-mono);
  color: var(--ko-accent-warm);
  font-size: 14px;
}

/* === Code window === */

.ko-code-window {
  max-width: var(--ko-code-measure);
  background: var(--ko-bg-soft);
  border: 1px solid var(--ko-border-card);
  border-radius: var(--ko-radius-xl);
  overflow: hidden;
  box-shadow: var(--ko-shadow-code);
}

.ko-code-opening { max-width: none; }

.ko-code-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--ko-border-soft);
  background: var(--ko-bg-chrome);
}

.ko-code-filename {
  font-family: var(--ko-font-mono);
  font-size: 12.5px;
  color: var(--ko-fg-faint);
}

.ko-code-body {
  padding: 22px 24px;
  overflow-x: auto;
}

.ko-code-pre {
  margin: 0;
  white-space: pre;
  font-family: var(--ko-font-mono), "Courier New", monospace;
  font-size: 13.5px;
  line-height: 1.72;
  tab-size: 4;
  color: var(--ko-fg-code);
}

.ko-code-opening .ko-code-pre { font-size: 12.5px; }

/* === Python beside Koskari === */

.ko-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: start;
}

.ko-compare .ko-code-window { max-width: none; }

.ko-compare-caption {
  font-size: 16px;
  line-height: 1.55;
  color: var(--ko-fg-soft);
  max-width: 32em;
  margin: 18px 0 0;
}

/* === Documentation line === */

.ko-doc-line {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--ko-fg-soft);
  margin: 0;
}

/* === Download band === */

.ko-download {
  margin: 0 var(--ko-pad-x) 64px;
  background: var(--ko-bg-ink);
  border-radius: 16px;
  padding: 44px 48px;
  color: var(--ko-fg-ink);
}

.ko-download-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

.ko-download-title {
  font-family: var(--ko-font-display);
  font-weight: 700;
  font-size: 32px;
  letter-spacing: -.02em;
  margin: 0 0 14px;
  color: #fff;
}

.ko-download-lede {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ko-fg-ink-soft);
  margin: 0 0 18px;
}

.ko-download-strong {
  color: var(--ko-accent-bright);
  font-weight: 600;
}

.ko-platform-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  font-family: var(--ko-font-mono);
  font-size: 11px;
}

.ko-platform-tag {
  color: var(--ko-fg-ink-dim);
  border: 1px solid var(--ko-border-ink);
  border-radius: var(--ko-radius-pill);
  padding: 4px 11px;
}

.ko-download-cmds {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ko-cmd-box {
  background: var(--ko-bg-ink-deep);
  border: 1px solid var(--ko-border-ink-box);
  border-radius: var(--ko-radius-md);
  padding: 16px 18px;
}

.ko-cmd-label {
  font-family: var(--ko-font-mono);
  font-size: 10.5px;
  color: var(--ko-fg-ink-dim);
  letter-spacing: .08em;
  margin-bottom: 8px;
}

.ko-cmd-line {
  font-family: var(--ko-font-mono);
  font-size: 13.5px;
  color: var(--ko-fg-code-shell);
  overflow-x: auto;
}

.ko-cmd-prompt { color: var(--ko-fg-ink-prompt); }

/* === Footer === */

.ko-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px var(--ko-pad-x);
  border-top: 1px solid var(--ko-border);
}

.ko-footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ko-footer-name {
  font-family: var(--ko-font-display);
  font-weight: 700;
  font-size: 16px;
}

.ko-footer-meta {
  font-family: var(--ko-font-mono);
  font-size: 12px;
  color: var(--ko-fg-faint);
}

.ko-footer-end { color: var(--ko-fg-footer-end); }

/* === Code sample syntax (light theme) === */

.k-kw    { color: var(--ko-tok-kw); font-weight: 700; }
.k-fn    { color: var(--ko-tok-fn); }
.k-type  { color: var(--ko-tok-fn); }
.k-num   { color: var(--ko-tok-num); }
.k-str   { color: var(--ko-tok-str); }
.k-dec   { color: var(--ko-tok-dec); }
.k-pn    { color: var(--ko-tok-pn); }
.k-cm    { color: var(--ko-tok-param); font-style: italic; }

/* === Responsive === */

@media (max-width: 860px) {
  .ko-opening { grid-template-columns: 1fr; }
  .ko-download-grid { grid-template-columns: 1fr; }
  .ko-compare { grid-template-columns: 1fr; }
  .ko-code-opening .ko-code-pre { font-size: 13.5px; }
}

@media (max-width: 620px) {
  :root { --ko-pad-x: 24px; }

  .ko-nav-links { flex-wrap: wrap; gap: 14px; font-size: 14px; }
  .ko-h1 { font-size: 44px; }
  .ko-download { padding: 32px 24px; }
}

@media (max-width: 400px) {
  .ko-h1 { font-size: 36px; }
}

/* The end. */