/* ============================================================================
   CLAUDE DESIGN LANGUAGE — components.css
   Bespoke, theme-driven components. Every value reads a semantic token, so the
   same markup re-skins across all 8 directions. No slop defaults baked in.
   ============================================================================ */

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2xs);
  font-family: var(--font-sans); font-weight: 600; font-size: var(--step-0);
  line-height: 1; padding: var(--btn-pad); border: 1px solid transparent;
  border-radius: var(--radius); cursor: pointer; text-decoration: none;
  transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn--primary { background: var(--accent); color: var(--accent-contrast); }
.btn--primary:hover { background: var(--accent-hover); }
.btn--secondary { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn--secondary:hover { border-color: var(--text); }
.btn--ghost { background: transparent; color: var(--text); padding-inline: 0.4em; }
.btn--ghost:hover { color: var(--accent); }
.btn--lg { font-size: var(--step-1); padding: 0.9em 1.6em; }
.btn--pill { border-radius: var(--radius-pill); }
/* brutalist: hard offset shadow on primary */
[data-theme="brut"] .btn { border-color: var(--text); border-radius: 0; }
[data-theme="brut"] .btn--primary { box-shadow: var(--shadow-hard); }
[data-theme="brut"] .btn:hover { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 0 var(--text); }

/* ---- Animated underline link ---- */
.link {
  color: var(--text); text-decoration: none;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 0% 1px; background-position: 0 100%; background-repeat: no-repeat;
  transition: background-size var(--dur-base) var(--ease-out), color var(--dur-fast) var(--ease-out);
  padding-bottom: 1px;
}
.link:hover { background-size: 100% 1px; color: var(--accent); }
.link--arrow::after { content: " \2192"; display: inline-block; transition: transform var(--dur-fast) var(--ease-out); }
.link--arrow:hover::after { transform: translateX(3px); }

/* ---- Tag / pill (use only for real metadata, never decorative spam) ---- */
.tag {
  display: inline-flex; align-items: center; gap: var(--space-3xs);
  font-family: var(--font-mono); font-size: var(--step--2); letter-spacing: 0.02em;
  color: var(--muted); border: 1px solid var(--border); border-radius: var(--radius-pill);
  padding: 0.3em 0.7em;
}

/* ---- Cards — editorial, hairline-first (NOT rounded-2xl + drop shadow reflex) ---- */
.card {
  display: flex; flex-direction: column; gap: var(--space-xs);
  padding: var(--space-m); background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.card--bare { background: transparent; border: 0; padding: 0; }
.card--ruled { background: transparent; border: 0; border-top: 1px solid var(--border-strong); border-radius: 0; padding: var(--space-m) 0; }
.card:hover { border-color: var(--border-strong); }
.card .card-index { font-family: var(--font-mono); font-size: var(--step--1); color: var(--accent); font-variant-numeric: tabular-nums; }
.card h3 { font-size: var(--step-2); }

/* ---- Media frame (consistent treatment = "designed" not "stock dump") ---- */
.media { position: relative; overflow: hidden; background: var(--surface-2); border-radius: var(--radius); }
.media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slower) var(--ease-out); }
.media--tint::after { content: ""; position: absolute; inset: 0; background: var(--accent); mix-blend-mode: multiply; opacity: 0.10; pointer-events: none; }
.media-link:hover .media img { transform: scale(1.03); }
.ratio-square { aspect-ratio: 1; } .ratio-portrait { aspect-ratio: 3/4; } .ratio-video { aspect-ratio: 16/9; } .ratio-wide { aspect-ratio: 21/9; }

/* ---- Index list — a bare list as the most editorial element on the page ---- */
.index-list { display: grid; }
.index-list > * { display: grid; grid-template-columns: auto 1fr auto; align-items: baseline; gap: var(--space-m);
  padding: var(--space-m) 0; border-top: 1px solid var(--border); transition: padding-left var(--dur-base) var(--ease-out); }
.index-list > *:last-child { border-bottom: 1px solid var(--border); }
.index-list a { text-decoration: none; }
.index-list > *:hover { padding-left: var(--space-s); }
.index-list .idx { font-family: var(--font-mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.index-list .ttl { font-family: var(--font-display); font-size: var(--step-2); }
.index-list .meta { font-family: var(--font-mono); font-size: var(--step--1); color: var(--muted); }

/* ---- Stat / metric (real numbers only) ---- */
.stat { display: flex; flex-direction: column; gap: var(--space-3xs); }
.stat .num { font-family: var(--font-display); font-size: var(--step-4); line-height: 1; font-variant-numeric: tabular-nums; }
.stat .lbl { font-size: var(--step--1); color: var(--muted); }

/* ---- Navigation ---- */
.nav { position: sticky; top: 0; z-index: var(--z-sticky); display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-m); padding: var(--space-s) var(--bleed); }
.nav--glass { background: color-mix(in oklab, var(--bg) 80%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border); }
.nav .brand { font-family: var(--font-display); font-size: var(--step-1); font-weight: 600; letter-spacing: -0.01em; text-decoration: none; }
.nav-links { display: flex; gap: var(--space-m); align-items: center; }
.nav-links a { font-family: var(--font-sans); font-size: var(--step--1); text-transform: uppercase; letter-spacing: var(--tracking-caps); text-decoration: none; color: var(--muted); transition: color var(--dur-fast) var(--ease-out); }
.nav-links a:hover { color: var(--text); }
@media (max-width: 40rem) { .nav-links { display: none; } }

/* ---- Form fields ---- */
.field { display: flex; flex-direction: column; gap: var(--space-3xs); }
.field label { font-size: var(--step--1); color: var(--muted); font-family: var(--font-sans); }
.field input, .field textarea, .field select {
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 0.7em 0.9em; transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 18%, transparent); }

/* ---- Footer ---- */
.footer { padding-block: var(--space-2xl-fluid); border-top: 1px solid var(--border); }
.footer .foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--space-l); }
@media (max-width: 40rem) { .footer .foot-grid { grid-template-columns: 1fr; } }

/* ---- Logo / proof strip (monochrome on a rule, never a noisy carousel) ---- */
.logo-strip { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-l); padding-block: var(--space-m);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); opacity: 0.75; }
.logo-strip span { font-family: var(--font-sans); font-weight: 600; color: var(--muted); }

/* ---- Marquee (deliberate textural divider; pauses on reduced-motion) ---- */
.marquee { overflow: hidden; white-space: nowrap; border-block: 1px solid var(--border); padding-block: var(--space-s); }
.marquee > * { display: inline-block; padding-inline: var(--space-m); font-family: var(--font-display); font-size: var(--step-3); animation: marquee 24s linear infinite; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee > * { animation: none; } }

/* ---- Pull-quote block ---- */
.quote { display: grid; gap: var(--space-s); padding-block: var(--space-l); }
.quote .q { font-family: var(--font-display); font-size: var(--step-4); line-height: 1.15; text-wrap: balance; max-width: 22ch; }
.quote .cite { font-family: var(--font-mono); font-size: var(--step--1); color: var(--muted); }