/* AK Studio — shared styles
   Type: Instrument Serif (display) + Geist (UI/body) + Geist Mono (micro)
   Palette: warm off-white ground, near-black ink, a single oklch accent
*/

:root {
  --bg: #f5f2ec;
  --bg-2: #ece8e0;
  --ink: #121212;
  --ink-2: #2a2724;
  --muted: #6b655d;
  --line: #d9d3c8;
  --line-2: #c7c0b3;
  --accent: oklch(0.62 0.14 38); /* warm terracotta */
  --accent-ink: #fff;

  --radius: 0;
  --maxw: 1240px;
  --gutter: clamp(20px, 4vw, 56px);

  --step--1: clamp(13px, 0.78vw + 10px, 15px);
  --step-0: clamp(15px, 0.5vw + 13px, 17px);
  --step-1: clamp(18px, 0.6vw + 16px, 22px);
  --step-2: clamp(22px, 1vw + 18px, 30px);
  --step-3: clamp(28px, 2vw + 20px, 44px);
  --step-4: clamp(40px, 4vw + 20px, 76px);
  --step-5: clamp(56px, 7vw + 20px, 128px);

  --font-serif: "Instrument Serif", "Cormorant Garamond", Georgia, serif;
  --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "ss02";
}

body { min-height: 100vh; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

img { display: block; max-width: 100%; }

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

/* Container */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex; align-items: baseline; gap: 10px;
  font-family: var(--font-serif);
  font-size: 22px;
  letter-spacing: -0.01em;
}
.brand .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  transform: translateY(-3px);
}
.nav-links {
  display: flex; gap: 28px;
  font-family: var(--font-sans);
  font-size: var(--step--1);
  color: var(--ink-2);
}
.nav-links a { position: relative; padding: 4px 0; }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: var(--ink);
}
.nav-cta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 10px 16px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
}
.nav-cta:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Tags / eyebrows */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow .bar { width: 18px; height: 1px; background: var(--muted); }

/* Display headings */
.display {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.98;
  color: var(--ink);
}
.display em {
  font-style: italic;
  color: var(--accent);
}
.h1 { font-size: var(--step-5); }
.h2 { font-size: var(--step-4); line-height: 1; }
.h3 { font-size: var(--step-3); line-height: 1.05; }
.lede {
  font-family: var(--font-sans);
  font-size: var(--step-1);
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 56ch;
  text-wrap: pretty;
}

/* Section helpers */
.section {
  padding: clamp(64px, 9vw, 140px) 0;
  border-top: 1px solid var(--line);
}
.section.first { border-top: 0; }
.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--gutter);
  margin-bottom: clamp(32px, 5vw, 72px);
  align-items: end;
}
@media (max-width: 780px) {
  .section-head { grid-template-columns: 1fr; gap: 20px; }
}

/* Buttons / links */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.18s;
}
.btn:hover { background: var(--ink); color: var(--bg); }
.btn.primary { background: var(--ink); color: var(--bg); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn .arrow { display: inline-block; transition: transform 0.18s; }
.btn:hover .arrow { transform: translateX(4px); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 3px;
}
.link-arrow:hover { color: var(--accent); border-color: var(--accent); }

/* Placeholder imagery — labeled, striped, monospace note */
.placeholder {
  position: relative;
  background:
    repeating-linear-gradient(
      135deg,
      var(--bg-2) 0 10px,
      color-mix(in oklab, var(--bg-2) 80%, #000) 10px 11px
    );
  border: 1px solid var(--line-2);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  overflow: hidden;
  color: var(--ink-2);
}
.placeholder .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 10px;
  margin: 12px;
  background: var(--bg);
  border: 1px solid var(--line-2);
  color: var(--ink-2);
}
.placeholder .corner {
  position: absolute; top: 0; right: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  padding: 8px 10px;
  letter-spacing: 0.1em;
}

/* Footer */
.footer {
  border-top: 1px solid var(--line);
  padding: 80px 0 36px;
  margin-top: 80px;
}
.footer .big {
  font-family: var(--font-serif);
  font-size: clamp(48px, 8vw, 128px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 0 0 48px;
}
.footer .big em { font-style: italic; color: var(--accent); }
.footer .cols {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}
@media (max-width: 780px) { .footer .cols { grid-template-columns: 1fr 1fr; } }
.footer h4 {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 16px;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 8px; font-size: var(--step--1); }
.footer .meta {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

/* Marquee / ticker used on home */
.ticker {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}
.ticker-track {
  display: flex;
  gap: 60px;
  white-space: nowrap;
  animation: ticker 42s linear infinite;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 44px);
  letter-spacing: -0.01em;
  will-change: transform;
}
.ticker-track span.dot { color: var(--accent); }
@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------------- MOTION ---------------- */
/* Defaults: everything visible, then we hide via [data-motion] states */

:root { --motion-dur: 0.9s; --motion-ease: cubic-bezier(.2,.7,.15,1); }

/* Scroll-reveal baseline */
[data-reveal] {
  opacity: 1;
  transform: none;
  transition: opacity var(--motion-dur) var(--motion-ease),
              transform var(--motion-dur) var(--motion-ease);
}
html[data-motion="full"] [data-reveal]:not(.in),
html[data-motion="reduced"] [data-reveal]:not(.in) {
  opacity: 0;
  transform: translateY(18px);
}
html[data-motion="reduced"] [data-reveal]:not(.in) { transform: translateY(8px); }
html[data-motion="reduced"] { --motion-dur: 0.5s; }
html[data-motion="off"] [data-reveal] { opacity: 1; transform: none; transition: none; }

/* Split-line headings */
.split-lines .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.08em;
  margin-bottom: -0.08em;
}
.split-lines .line-inner {
  display: inline-block;
  transform: translateY(102%);
  transition: transform 1s var(--motion-ease);
  will-change: transform;
}
.split-lines.split-ready .line-inner { transform: translateY(0); }
html[data-motion="off"] .split-lines .line-inner { transform: none !important; transition: none; }
html[data-motion="reduced"] .split-lines .line-inner { transition-duration: 0.55s; }

/* Nav density change */
.nav { transition: padding 0.35s var(--motion-ease), background 0.3s ease; }
.nav.scrolled .nav-inner { padding-top: 12px; padding-bottom: 12px; }
.nav.scrolled { background: color-mix(in oklab, var(--bg) 94%, transparent); }

/* Brand dot pulse (availability) */
.brand .dot { position: relative; }
html[data-motion="full"] .brand .dot::after,
html[data-motion="reduced"] .brand .dot::after {
  content: "";
  position: absolute; inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  opacity: 0;
  animation: pulse 2.8s var(--motion-ease) infinite;
}
@keyframes pulse {
  0%   { transform: scale(0.6); opacity: 0.8; }
  70%  { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(2.2); opacity: 0; }
}

/* Work card hover */
.work-card .work-meta h3 { transition: color 0.25s ease; }
.work-card:hover .work-meta h3 { color: var(--accent); font-style: italic; }
.work-card .placeholder { transition: transform 0.5s var(--motion-ease); }
.work-card:hover .placeholder { transform: translateY(-6px); }

/* Case image parallax-lite */
.case .placeholder { transition: transform 0.6s var(--motion-ease); }
.case:hover .placeholder { transform: translateY(-4px) scale(1.01); }

/* Ticker — pause on hover */
.ticker:hover .ticker-track { animation-play-state: paused; }

/* Link-arrow slide */
.link-arrow { position: relative; }
.link-arrow::after { content: ""; }

/* Chip hover */
.chip { transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s; }
.chip:active { transform: translateY(1px); }

/* Form field focus line grow */
.form input, .form textarea { transition: border-color 0.25s ease; }

/* Section entry: give sections themselves a micro-slide */
.section > .wrap { transition: opacity var(--motion-dur) var(--motion-ease); }

/* Reduce motion system-wide safety */
@media (prefers-reduced-motion: reduce) {
  html:not([data-motion]) [data-reveal] { opacity: 1 !important; transform: none !important; }
  html:not([data-motion]) .split-lines .line-inner { transform: none !important; }
  html:not([data-motion]) .ticker-track { animation: none; }
  html:not([data-motion]) .brand .dot::after { animation: none; display: none; }
}

/* Utilities */
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; }
.serif { font-family: var(--font-serif); }
hr.rule { border: 0; border-top: 1px solid var(--line); margin: 0; }