/* Shared site styles built on colors_and_type.css */

/* -------- Tweakable defaults (theme) -------- */
:root {
  --site-bg: var(--q-warm-white);
  --site-fg: var(--q-ink);
  --site-surface: var(--q-pure-white);
  --site-border: var(--q-border);
  --site-muted: var(--q-fg-muted);
  --site-eyebrow: var(--q-fg-muted);
  --site-accent: var(--q-luminous-emerald);
  --site-accent-deep: var(--q-deep-forest-teal);
  --site-header-bg: rgba(244, 237, 224, 0.82);
  --site-header-fg: var(--q-ink);
  --site-header-border: var(--q-border);
  --site-hero-bg: var(--q-warm-white);
  --site-hero-fg: var(--q-ink);
  --site-hero-lede: var(--q-fg-muted);
  --site-footer-bg: var(--q-midnight-pine);
  --site-footer-fg: var(--q-celdon);
  --site-footer-h: var(--q-luminous-emerald);
}

/* Hero background variants (controlled via data-hero on <body>) */
body[data-hero="paper"] {
  --site-hero-bg: var(--q-warm-white);
  --site-hero-fg: var(--q-ink);
  --site-hero-lede: var(--q-fg-muted);
}
body[data-hero="teal"] {
  --site-hero-bg: var(--q-deep-forest-teal);
  --site-hero-fg: var(--q-warm-white);
  --site-hero-lede: var(--q-celdon);
}
body[data-hero="carbon"] {
  --site-hero-bg: var(--q-carbon);
  --site-hero-fg: var(--q-warm-white);
  --site-hero-lede: var(--q-celdon);
}

/* Full dark-mode override */
body[data-theme="dark"] {
  --site-bg: var(--q-carbon);
  --site-fg: var(--q-warm-white);
  --site-surface: #141C19;
  --site-border: #26302C;
  --site-muted: #A8B1AC;
  --site-eyebrow: #A8B1AC;
  --site-accent: var(--q-luminous-emerald);
  --site-accent-deep: var(--q-celdon);
  --site-header-bg: rgba(10, 14, 13, 0.82);
  --site-header-fg: var(--q-warm-white);
  --site-header-border: #26302C;
  --site-hero-bg: var(--q-carbon);
  --site-hero-fg: var(--q-warm-white);
  --site-hero-lede: var(--q-celdon);
  --site-footer-bg: #000;
  --site-footer-fg: var(--q-celdon);
}
body[data-theme="dark"][data-hero="paper"] {
  --site-hero-bg: var(--q-midnight-pine);
  --site-hero-fg: var(--q-warm-white);
  --site-hero-lede: var(--q-celdon);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--site-bg);
  color: var(--site-fg);
  font: var(--q-body);
  min-height: 100vh;
}
a { color: inherit; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 48px; }
@media (max-width: 720px) { .container { padding: 0 24px; } }

/* ===== Header ===== */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: var(--site-header-bg);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--site-header-border);
  color: var(--site-header-fg);
}
.site-nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 32px;
}
.site-nav .brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.site-nav .brand img { height: 32px; display: block; }
.site-nav .brand .wordmark { font: 700 18px/1 var(--q-font-display); letter-spacing: -0.02em; }
.site-nav .brand .tm { font: 500 10px var(--q-font-display); color: var(--site-accent); vertical-align: super; }

.site-nav .links { display: flex; gap: 28px; align-items: center; }
.site-nav .links a {
  font: 500 14px var(--q-font-body);
  text-decoration: none;
  color: var(--site-fg);
  opacity: .84;
  transition: opacity var(--q-dur-fast) var(--q-ease), color var(--q-dur-fast) var(--q-ease);
  position: relative;
}
.site-nav .links a:hover { opacity: 1; color: var(--site-accent); }
.site-nav .links a.active { opacity: 1; }
.site-nav .links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -22px;
  height: 2px; background: var(--site-accent);
}
.site-nav .right { display: flex; align-items: center; gap: 16px; }

/* ===== Buttons ===== */
.btn {
  font: 600 14px var(--q-font-display);
  letter-spacing: -0.005em;
  padding: 12px 20px;
  border-radius: var(--q-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  transition: transform var(--q-dur-fast) var(--q-ease),
              background var(--q-dur-fast) var(--q-ease),
              color var(--q-dur-fast) var(--q-ease),
              border-color var(--q-dur-fast) var(--q-ease);
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn.primary { background: var(--site-accent); color: var(--q-deep-forest-teal); }
.btn.primary:hover { background: var(--q-aurora-mint); }
.btn.dark { background: var(--q-deep-forest-teal); color: var(--q-warm-white); }
.btn.dark:hover { background: var(--q-midnight-pine); }
.btn.ghost { background: transparent; color: var(--site-fg); border-color: var(--site-border); }
.btn.ghost:hover { border-color: var(--site-accent); color: var(--site-accent); }
.btn.light { background: var(--q-warm-white); color: var(--q-deep-forest-teal); }
.btn.sm { padding: 9px 14px; font-size: 13px; }
.btn.lg { padding: 15px 24px; font-size: 15px; }

/* ===== Eyebrow ===== */
.eyebrow {
  font: 600 12px/1.2 var(--q-font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--site-eyebrow);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow.accent { color: var(--site-accent); }
.eyebrow .bar { display: inline-block; width: 24px; height: 1px; background: currentColor; opacity: 0.6; }

/* ===== The X ===== */
.qx { font-style: italic; color: var(--site-accent); font-weight: 700; }

/* ===== Display heads ===== */
.display-xl { font: 700 clamp(56px, 8vw, 128px)/0.92 var(--q-font-display); letter-spacing: -0.028em; }
.display-l  { font: 700 clamp(44px, 6vw, 88px)/0.96 var(--q-font-display); letter-spacing: -0.022em; }
.display-m  { font: 600 clamp(32px, 4vw, 56px)/1.02 var(--q-font-display); letter-spacing: -0.015em; }

/* ===== Footer ===== */
footer.site {
  background: var(--site-footer-bg);
  color: var(--site-footer-fg);
  padding: 96px 0 28px;
  margin-top: 0;
}
footer.site .top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(184,212,194,.18);
}
@media (max-width: 900px) { footer.site .top { grid-template-columns: 1fr 1fr; } }
footer.site .brand-col img { height: 40px; margin-bottom: 20px; }
footer.site .brand-col p { font: 400 14px/1.55 var(--q-font-body); color: var(--q-celdon); opacity: .78; max-width: 280px; margin: 0 0 20px; }
footer.site h4 {
  font: 600 11px/1 var(--q-font-display);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--site-footer-h);
  margin: 0 0 18px;
}
footer.site a {
  display: block;
  font: 400 14px/2 var(--q-font-body);
  color: var(--q-warm-white);
  text-decoration: none;
  opacity: .82;
  transition: color var(--q-dur-fast) var(--q-ease), opacity var(--q-dur-fast) var(--q-ease);
}
footer.site a:hover { color: var(--site-accent); opacity: 1; }
footer.site .legal {
  padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font: 500 11px/1 var(--q-font-mono);
  letter-spacing: 0.08em;
  color: var(--q-celdon);
  opacity: .55;
  text-transform: uppercase;
}
footer.site .legal .grid-dot { display: inline-block; width: 6px; height: 6px; background: var(--site-accent); margin-right: 8px; vertical-align: middle; }

/* ===== Reveal on scroll ===== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 600ms var(--q-ease), transform 600ms var(--q-ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 80ms; }
.reveal.d2 { transition-delay: 160ms; }
.reveal.d3 { transition-delay: 240ms; }
.reveal.d4 { transition-delay: 320ms; }

/* ===== Section shell ===== */
.section { padding: 120px 0; }
.section.tight { padding: 88px 0; }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: end; margin-bottom: 72px; }
.section-head .kicker p { font: 400 18px/1.55 var(--q-font-body); color: var(--site-muted); max-width: 520px; margin: 0; }
@media (max-width: 900px) { .section-head { grid-template-columns: 1fr; gap: 24px; } }

/* ===== Hairline helper ===== */
.hr { height: 1px; background: var(--site-border); border: 0; margin: 0; }

/* ===== Tweaks panel ===== */
#tweaks-panel {
  position: fixed; right: 20px; bottom: 20px; z-index: 100;
  background: var(--q-deep-forest-teal);
  color: var(--q-warm-white);
  border: 1px solid var(--q-midnight-pine);
  border-radius: 12px;
  padding: 18px 20px;
  width: 280px;
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
  display: none;
  font-family: var(--q-font-body);
}
#tweaks-panel.open { display: block; }
#tweaks-panel h5 {
  margin: 0 0 14px;
  font: 600 11px/1 var(--q-font-display);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--q-luminous-emerald);
}
#tweaks-panel .row { margin-bottom: 16px; }
#tweaks-panel .row:last-child { margin-bottom: 0; }
#tweaks-panel label {
  display: block;
  font: 500 11px/1.2 var(--q-font-body);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--q-celdon);
  margin-bottom: 8px;
  opacity: .8;
}
#tweaks-panel .seg { display: flex; gap: 0; border: 1px solid rgba(184,212,194,.25); border-radius: 6px; overflow: hidden; }
#tweaks-panel .seg button {
  flex: 1; background: transparent; border: 0; color: var(--q-celdon);
  padding: 9px 10px; font: 500 12px var(--q-font-body); cursor: pointer;
  border-right: 1px solid rgba(184,212,194,.2);
}
#tweaks-panel .seg button:last-child { border-right: 0; }
#tweaks-panel .seg button.on { background: var(--q-luminous-emerald); color: var(--q-deep-forest-teal); font-weight: 600; }
#tweaks-panel .toggle {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--q-midnight-pine); padding: 10px 12px; border-radius: 6px;
  cursor: pointer;
}
#tweaks-panel .toggle span { font-size: 13px; color: var(--q-warm-white); }
#tweaks-panel .toggle .sw {
  width: 32px; height: 18px; border-radius: 999px;
  background: #1c2a25; position: relative; transition: background 180ms;
}
#tweaks-panel .toggle .sw::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--q-celdon); transition: transform 180ms;
}
/* ===== Theme toggle ===== */
#theme-toggle {
  background: none; border: 1px solid var(--site-border); border-radius: var(--q-radius-sm);
  padding: 6px 10px; cursor: pointer; color: var(--site-fg); font-size: 16px; line-height: 1;
  display: inline-flex; align-items: center; gap: 6px;
  transition: border-color var(--q-dur-fast) var(--q-ease), color var(--q-dur-fast) var(--q-ease);
}
#theme-toggle:hover { border-color: var(--site-accent); color: var(--site-accent); }
#theme-toggle .icon-sun, #theme-toggle .icon-moon { display: none; }
body[data-theme="light"] #theme-toggle .icon-moon { display: inline; }
body[data-theme="dark"] #theme-toggle .icon-sun { display: inline; }

/* ===== Mobile nav ===== */
#menu-toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: 8px;
  color: var(--site-header-fg); font-size: 20px;
}
@media (max-width: 720px) {
  #menu-toggle { display: block; }
  .site-nav .links {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    background: var(--site-header-bg); backdrop-filter: blur(14px);
    flex-direction: column; padding: 24px; gap: 20px;
    border-bottom: 1px solid var(--site-header-border);
  }
  .site-nav .links.open { display: flex; }
  .site-nav .right { display: none; }
  .site-nav .links.open ~ .right { display: flex; }
}
