/* ── Inter (self-hosted, variable) ───────────────────────────── */
@font-face {
  font-family: 'Inter Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url('fonts/inter-latin-wght-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212,
    U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url('fonts/inter-latin-ext-wght-normal.woff2') format('woff2');
  unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ── Tokens ──────────────────────────────────────────────────── */
:root {
  --bg: #fbfbfd;
  --fg: #0a0a0a;
  --fg-soft: #5b5b63;
  --fg-faint: #97979f;
  --hairline: rgba(10, 10, 10, 0.10);
  --gutter: clamp(20px, 4vw, 56px);
  --font: 'Inter Variable', 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* Liquid glass */
  --glass: rgba(255, 255, 255, 0.55);
  --glass-strong: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.65);
  --glass-blur: saturate(180%) blur(22px);
  --radius: 20px;
  --radius-lg: 28px;
  --shadow-soft: 0 10px 34px rgba(28, 28, 40, 0.10);
  --shadow-lift: 0 24px 60px rgba(28, 28, 40, 0.16);
  --highlight: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  font-feature-settings: 'ss01', 'cv11';
  background: var(--bg);
  color: var(--fg);
  font-size: 16px;
  line-height: 1.5;
  font-weight: 400;
  position: relative;
  min-height: 100vh;
}

/* Ambient backdrop — soft colour washes for the glass to refract.
   Fixed + faint so the site still reads clean and white. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(46vw 46vw at 12% -6%, rgba(126, 142, 255, 0.18), transparent 60%),
    radial-gradient(40vw 40vw at 102% 8%, rgba(255, 142, 196, 0.16), transparent 60%),
    radial-gradient(50vw 50vw at 78% 104%, rgba(120, 220, 200, 0.14), transparent 62%),
    var(--bg);
}

/* ── Header (flat rectangular bar) ───────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px var(--gutter);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--hairline);
}
.site-header .brand {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.site-header .nav-meta {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-soft);
}
.back-link {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-soft);
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(10, 10, 10, 0.04);
  transition: background .25s var(--ease), color .25s var(--ease);
}
.back-link:hover { background: rgba(10, 10, 10, 0.08); color: var(--fg); }

/* Header right cluster: nav + language switch */
.header-right { display: flex; align-items: center; gap: clamp(12px, 2vw, 24px); }
.header-nav { display: flex; gap: clamp(12px, 1.6vw, 22px); }
.header-nav a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--fg-soft);
  transition: color .2s var(--ease);
}
.header-nav a:hover { color: var(--fg); }
.header-nav a.is-active { color: var(--fg); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 4px 6px;
  border-radius: 999px;
  background: rgba(10, 10, 10, 0.05);
}
.lang-btn {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--fg-faint);
  padding: 4px 9px;
  border-radius: 999px;
  transition: color .2s var(--ease), background .25s var(--ease);
}
.lang-btn.is-active {
  color: var(--fg);
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.10);
}
.lang-btn:not(.is-active):hover { color: var(--fg); }
.lang-sep { color: var(--fg-faint); font-size: 11px; }

@media (max-width: 560px) {
  .header-nav { gap: 14px; }
  .header-nav a { font-size: 12px; }
  .site-header { padding: 14px var(--gutter); }
}

/* ── Intro (landing) ─────────────────────────────────────────── */
.intro {
  padding: clamp(48px, 11vh, 128px) var(--gutter) clamp(36px, 6vh, 80px);
  max-width: 1500px;
  margin: 0 auto;
}
.intro h1 {
  margin: 0;
  font-weight: 600;
  font-size: clamp(36px, 6.4vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.04em;
  background: linear-gradient(180deg, #0a0a0a 30%, #3a3a44);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.intro p {
  margin: 22px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 18px);
  color: var(--fg-soft);
  line-height: 1.6;
}

/* ── Gallery ─────────────────────────────────────────────────── */
.gallery {
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(64px, 12vh, 140px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(30px, 4vw, 76px);
}
@media (max-width: 900px) { .gallery { grid-template-columns: repeat(2, 1fr); gap: clamp(22px, 5vw, 40px); } }
@media (max-width: 560px) { .gallery { grid-template-columns: 1fr; } }

.card { display: block; color: inherit; }
.card-frame {
  position: relative;
  width: 100%;
  background: #f3f3f3;
  overflow: hidden;
  transition: box-shadow .4s var(--ease);
}
.card-frame img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity .8s var(--ease);
  opacity: 0;
}
.card-frame img.loaded { opacity: 1; }
.card:hover .card-frame { box-shadow: var(--shadow-lift); }

.card-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
}
.card-title { font-size: 16px; font-weight: 500; letter-spacing: -0.01em; }
.card-year { font-size: 12px; letter-spacing: 0.06em; color: var(--fg-faint); font-variant-numeric: tabular-nums; }

/* ── Detail page ─────────────────────────────────────────────── */
.detail {
  max-width: 1500px;
  margin: 0 auto;
  padding: clamp(32px, 5vh, 64px) var(--gutter) clamp(64px, 12vh, 140px);
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.85fr);
  gap: clamp(36px, 5vw, 88px);
  align-items: start;
}
@media (max-width: 820px) {
  .detail { grid-template-columns: 1fr; gap: clamp(28px, 6vw, 44px); }
}
.detail-figure {
  margin: 0;
  position: sticky;
  top: 96px;
}
@media (max-width: 820px) { .detail-figure { position: static; } }
.detail-figure img {
  width: 100%;
  height: auto;
  max-height: calc(100vh - 140px);
  object-fit: contain;
  object-position: top left;
}

.detail-info { padding-top: 4px; }
.detail-info h1 {
  margin: 0;
  font-weight: 500;
  font-size: clamp(28px, 3.4vw, 44px);
  letter-spacing: -0.03em;
  line-height: 1.04;
}
.detail-info .year-line {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--fg-soft);
  font-variant-numeric: tabular-nums;
}

.spec-list {
  margin: clamp(28px, 5vh, 44px) 0 0;
  border-top: 1px solid var(--hairline);
}
.spec-row {
  display: grid;
  grid-template-columns: 38% 1fr;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--hairline);
}
.spec-key {
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--fg-faint);
  padding-top: 2px;
}
.spec-val {
  font-size: 15px;
  color: var(--fg);
}

.inquire {
  margin-top: clamp(28px, 5vh, 40px);
  font-size: 13px;
  color: var(--fg-soft);
}
.inquire a {
  border-bottom: 1px solid var(--hairline);
  transition: border-color .2s var(--ease);
}
.inquire a:hover { border-color: var(--fg); }

.detail-nav {
  margin-top: clamp(28px, 5vh, 44px);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--hairline);
  padding-top: 18px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-soft);
}
.detail-nav a { transition: color .2s var(--ease); }
.detail-nav a:hover { color: var(--fg); }
.detail-nav .disabled { opacity: 0.3; pointer-events: none; }

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding: clamp(40px, 7vh, 72px) var(--gutter);
  max-width: 1500px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  justify-content: center;
  align-items: baseline;
  font-size: 12px;
  color: var(--fg-soft);
}
.site-footer .name { color: var(--fg); font-weight: 500; letter-spacing: -0.01em; }
.site-footer .sep { color: var(--fg-faint); }
.site-footer a { transition: color .2s var(--ease); }
.site-footer a:hover { color: var(--fg); }

/* ── Bio page ────────────────────────────────────────────────── */
.bio {
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(40px, 9vh, 104px) var(--gutter) clamp(56px, 10vh, 120px);
}
.bio-hero { margin-bottom: clamp(36px, 7vh, 72px); }
.bio-hero h1 {
  margin: 0;
  font-weight: 600;
  font-size: clamp(34px, 5.4vw, 72px);
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(180deg, #0a0a0a 30%, #3a3a44);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.bio-hero .bio-sub {
  margin: 12px 0 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-soft);
}
.bio-section { margin-top: clamp(32px, 6vh, 64px); }
.bio-section h2 {
  margin: 0 0 18px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-faint);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
}
.bio-list { display: grid; gap: 2px; }
.bio-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  padding: 9px 0;
  align-items: baseline;
}
.bio-year {
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--fg-faint);
  white-space: nowrap;
}
.bio-text { font-size: 15px; color: var(--fg); line-height: 1.45; }
@media (max-width: 520px) {
  .bio-row { grid-template-columns: 1fr; gap: 2px; padding: 11px 0; }
}

/* Statement in a glass panel */
.bio-statement .prose {
  padding: clamp(22px, 3.5vw, 36px);
  border-radius: var(--radius-lg);
  background: var(--glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-soft), var(--highlight);
}
.bio-statement .prose p {
  margin: 0 0 1em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.62;
  color: var(--fg);
  max-width: 62ch;
}
.bio-statement .prose p:last-child { margin-bottom: 0; }

.bio-contact {
  margin-top: clamp(40px, 8vh, 80px);
  padding-top: 22px;
  border-top: 1px solid var(--hairline);
  font-size: 13px;
  color: var(--fg-soft);
  letter-spacing: 0.01em;
}

/* ── Misc ────────────────────────────────────────────────────── */
.empty-state { padding: 25vh var(--gutter); text-align: center; color: var(--fg-soft); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card-frame, .card-frame img, .card:hover .card-frame, .card:hover .card-frame img
    { transition: opacity .3s; transform: none; }
}

/* Graceful fallback where backdrop-filter is unsupported */
@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .site-header, .spec-list { background: rgba(255, 255, 255, 0.92); }
}