/* ==========================================================================
   Vadose site — page chrome only.
   Layout for nav, footer, page width, section rhythm, and shared grids.
   Component styling lives in components.css; colors/shadows in tokens.css.
   Load order: tokens.css -> components.css -> site.css
   ========================================================================== */

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  transition: background .3s, color .3s;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---- Nav ---------------------------------------------------------------- */
.site-nav {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 22px;
}
.site-nav__logo { display: flex; align-items: center; }
.site-nav__logo img { height: 26px; width: auto; }
/* Swap the lockup by mode: dark mark on light bg, light mark on dark bg */
.logo-dark { display: block; }
.logo-light { display: none; }
[data-theme="light"] .logo-dark { display: none; }
[data-theme="light"] .logo-light { display: block; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .logo-dark { display: none; }
  :root:not([data-theme]) .logo-light { display: block; }
}

.site-nav__links {
  margin-left: auto;
  display: flex;
  gap: 22px;
  align-items: center;
}
.site-nav__links a {
  color: var(--ink2);
  font-size: var(--fs-ui);
  font-weight: var(--fw-medium);
  text-decoration: none;
  transition: color .15s;
}
.site-nav__links a:hover,
.site-nav__links a[aria-current="page"] { color: var(--ink); }

/* Theme toggle — a small round control */
.theme-toggle {
  width: 34px;
  height: 34px;
  border-radius: var(--r-round);
  border: 0;
  cursor: pointer;
  display: grid;
  place-items: center;
  background: var(--panel);
  color: var(--ink2);
  box-shadow: var(--raised);
  transition: color .15s;
}
.theme-toggle:hover { color: var(--ink); }
.theme-toggle svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* ---- Section rhythm ----------------------------------------------------- */
.section { padding: 56px 0; }
.section--tight { padding: 36px 0; }

.section__eyebrow {
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-semibold);
  letter-spacing: -.02em;
  color: var(--ink);
}
.section__lede {
  color: var(--ink2);
  font-size: var(--fs-body);
  max-width: 60ch;
  margin-top: 12px;
}

/* ---- Shared grids ------------------------------------------------------- */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 28px;
}
@media (max-width: 880px) { .tile-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .tile-grid { grid-template-columns: 1fr; } }

/* Faceplate inner layout (hero instrument) */
.fp-body { display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: center; }
.fp-bars { display: grid; gap: 10px; }
.fp-barrow { display: grid; grid-template-columns: 64px 1fr 50px; align-items: center; gap: 10px; }
.fp-barrow .l { font-size: 10.5px; letter-spacing: .06em; color: var(--ink3); font-weight: 600; text-transform: uppercase; }
.fp-barrow .v { font-size: 11px; font-variant-numeric: tabular-nums; color: var(--ink2); text-align: right; }

/* Tile internals shared helpers */
.tile-ribbon-tr { position: absolute; top: 16px; right: 16px; }
.tile-ic { margin-bottom: 14px; }

/* ---- Footer ------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--hair);
  margin-top: 40px;
  padding: 32px 0 48px;
}
.site-footer__row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.site-footer__row img { height: 20px; width: auto; opacity: .85; }
.site-footer__tag { color: var(--ink3); font-size: var(--fs-sm); }
.site-footer__links { margin-left: auto; display: flex; gap: 18px; }
.site-footer__links a { color: var(--ink2); font-size: var(--fs-sm); text-decoration: none; }
.site-footer__links a:hover { color: var(--ink); }