/* Qubismic — design tokens */
:root {
  /* Dark (default) */
  --bg:            #0a0e1a;
  --bg-elev-1:     #111727;
  --bg-elev-2:     #182038;
  --border:        #1f2942;
  --border-strong: #2d3a5e;
  --ink:           #e8ecf5;
  --ink-2:         #a8b2cc;
  --muted:         #6b7694;

  --saffron:       #d4a52a;
  --saffron-soft:  #e5c465;
  --saffron-bg:    rgba(212,165,42,.08);

  --quantum:       #7aa9ff;
  --quantum-bg:    rgba(122,169,255,.10);

  --dharmic:       #8fc9a8;
  --dharmic-bg:    rgba(143,201,168,.10);

  --consciousness: #b39ae0;
  --consciousness-bg: rgba(179,154,224,.10);

  --warning:       #e89570;

  /* Type */
  --font-display: 'Fraunces', 'Cormorant Garamond', Georgia, serif;
  --font-body: 'IBM Plex Sans Thai Looped', 'IBM Plex Sans', 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'DM Mono', ui-monospace, monospace;

  /* Rhythm */
  --measure: 68ch;
  --radius: 2px;
  --tr: 180ms cubic-bezier(.2,.6,.2,1);
}

:root[data-theme="light"] {
  --bg:            #f5f1e8;
  --bg-elev-1:     #faf6ed;
  --bg-elev-2:     #efe8d6;
  --border:        #e0d8c4;
  --border-strong: #c7bd9f;
  --ink:           #1a1f2e;
  --ink-2:         #3d4357;
  --muted:         #6b6654;

  --saffron:       #a8790f;
  --saffron-soft:  #8f6408;
  --saffron-bg:    rgba(168,121,15,.08);

  --quantum:       #2e58a6;
  --quantum-bg:    rgba(46,88,166,.08);

  --dharmic:       #3f7a54;
  --dharmic-bg:    rgba(63,122,84,.08);

  --consciousness: #6a4ea0;
  --consciousness-bg: rgba(106,78,160,.08);

  --warning:       #a9490f;
}

/* Reset & base */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.75;
  font-feature-settings: "ss01", "ss02", "cv11";
  transition: background-color 300ms ease, color 300ms ease;
}

::selection { background: var(--saffron-bg); color: var(--ink); }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
hr { border: 0; border-top: 1px solid var(--border); margin: 3rem 0; }

/* Focus */
:focus-visible {
  outline: 2px solid var(--saffron);
  outline-offset: 2px;
  border-radius: 1px;
}

/* Utility */
.meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.thin-rule {
  height: 1px;
  background: var(--border);
  width: 100%;
  border: 0;
}
.center { max-width: var(--measure); margin-inline: auto; }
.container { max-width: 1120px; margin-inline: auto; padding-inline: clamp(20px, 4vw, 40px); }

/* Sacred geometry divider */
.divider-sacred {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: var(--saffron);
  opacity: .55;
  letter-spacing: 0.25em;
  font-size: 14px;
  padding: 56px 0;
  user-select: none;
}
.divider-sacred::before,
.divider-sacred::after {
  content: "";
  flex: 1;
  max-width: 80px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-strong), transparent);
}

/* Category colors */
.cat-consciousness { color: var(--consciousness); }
.cat-dharmic       { color: var(--dharmic); }
.cat-quantum       { color: var(--quantum); }
.cat-vision        { color: var(--saffron); }
.cat-practice      { color: var(--ink-2); }
.cat-research      { color: var(--ink-2); font-family: var(--font-mono); }

/* Nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 64px;
  display: flex;
  align-items: center;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  transition: border-color var(--tr), background-color var(--tr);
  border-bottom: 1px solid transparent;
}
.site-nav.scrolled { border-bottom-color: var(--border); }
.site-nav .container {
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: -0.01em;
}
.brand-mark { width: 22px; height: 22px; }
.nav-links {
  margin-left: auto;
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  font-size: 14px;
  color: var(--ink-2);
  position: relative;
  padding: 4px 2px;
  transition: color var(--tr);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  bottom: -4px;
  height: 1px;
  background: var(--saffron);
}
.mode-toggle {
  width: 32px; height: 32px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: inline-flex;
  align-items: center; justify-content: center;
  color: var(--ink-2);
  transition: color var(--tr), border-color var(--tr), background var(--tr);
}
.mode-toggle:hover { color: var(--ink); border-color: var(--border-strong); }

/* Footer */
.site-footer {
  margin-top: 140px;
  border-top: 1px solid var(--border);
  padding: 64px 0 48px;
  color: var(--ink-2);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}
.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 16px;
  font-weight: 500;
}
.footer-grid a { display: block; padding: 4px 0; font-size: 15px; color: var(--ink-2); transition: color var(--tr); }
.footer-grid a:hover { color: var(--ink); }
.footer-sub {
  display: flex;
  align-items: stretch;
  margin-top: 8px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.footer-sub input {
  flex: 1;
  background: transparent;
  border: 0;
  padding: 12px 0;
  color: var(--ink);
  font: inherit;
  font-size: 15px;
}
.footer-sub input::placeholder { color: var(--muted); }
.footer-sub input:focus { outline: none; }
.footer-sub button {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--saffron);
  padding: 0 16px;
  transition: color var(--tr);
}
.footer-sub button:hover { color: var(--saffron-soft); }
.footer-bar {
  margin-top: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* Dimension dots (read-more) */
.dim-dots {
  display: inline-flex;
  gap: 5px;
  align-items: center;
  margin-right: 10px;
  vertical-align: middle;
}
.dim-dots i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--saffron);
  display: inline-block;
  opacity: .85;
}
.dim-dots i:last-child {
  background: transparent;
  border: 1px solid var(--saffron);
  opacity: .7;
}

/* Post card list */
.post-list { list-style: none; padding: 0; margin: 0; }
.post-item {
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
}
.post-item:last-child { border-bottom: 0; }
.post-item .title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 2.4vw, 1.75rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 10px 0 10px;
  color: var(--ink);
  display: block;
  transition: color var(--tr);
}
.post-item a.card-link:hover .title { color: var(--saffron-soft); }
.post-item .lede { color: var(--ink-2); max-width: 60ch; margin: 0 0 18px; }
.post-item .read-more {
  display: inline-flex;
  align-items: center;
  color: var(--ink-2);
  transition: color var(--tr), transform var(--tr);
  font-size: 14px;
}
.post-item .read-more .arrow { transition: transform var(--tr); display: inline-block; margin-left: 6px; }
.post-item a.card-link:hover .read-more { color: var(--saffron); }
.post-item a.card-link:hover .read-more .arrow { transform: translateX(5px); }

/* Motion — reduced */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* Mobile-first: nav & footer behavior below 640px */
@media (max-width: 640px) {
  .site-nav { height: 56px; }
  .nav-links { gap: 14px; }
  .nav-links a { font-size: 13px; }
  .nav-links a:not(.active) { display: none; }
  .site-footer { margin-top: 80px; padding: 48px 0 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bar { flex-direction: column; gap: 8px; align-items: flex-start; font-size: 10px; }
  .divider-sacred { padding: 36px 0; }
  .post-item { padding: 28px 0; }
  .post-item .title { font-size: 1.3rem; }
  .tweaks { left: 12px; right: 12px; bottom: 12px; width: auto; }
}

/* Particle canvas */
.particle-field {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  opacity: 0.65;
}

/* Tweaks panel */
.tweaks {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 280px;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  padding: 18px 18px 14px;
  z-index: 100;
  display: none;
  font-size: 13px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.tweaks.open { display: block; }
.tweaks h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
  font-weight: 500;
  display: flex; justify-content: space-between; align-items: center;
}
.tweaks .row { display: flex; justify-content: space-between; align-items: center; padding: 6px 0; color: var(--ink-2); }
.tweaks label { color: var(--ink-2); }
.tweaks select, .tweaks input[type="range"] {
  background: var(--bg-elev-2);
  color: var(--ink);
  border: 1px solid var(--border);
  padding: 4px 6px;
  font: inherit;
  font-size: 12px;
}
.tweaks .swatch-row { display: flex; gap: 6px; }
.tweaks .swatch {
  width: 18px; height: 18px;
  border: 1px solid var(--border);
  cursor: pointer;
  border-radius: 50%;
}
.tweaks .swatch.active { outline: 2px solid var(--saffron); outline-offset: 2px; }