:root {
  --paper: #e9e4d5;
  --paper-2: #e3dfce;
  --paper-3: #d2ccb8;
  --ink: #1d241a;
  --ink-2: #353e30;
  --ink-3: #4f5a46;
  --rule: rgba(29, 36, 26, 0.16);
  --rule-soft: rgba(29, 36, 26, 0.08);
  --moss: #1d241a;
  --forest: #2b3828;
  --ochre: #8a6e39;
  --amber-soft: rgba(138, 110, 57, 0.14);
  --sprout: #7da25b;
  --sprout-soft: rgba(125, 162, 91, 0.14);
  --tint: #bbdba8;
  --shadow: 0 26px 76px rgba(29, 36, 26, 0.18);
  --shadow-soft: 0 10px 30px rgba(29, 36, 26, 0.08);
  --glass: rgba(233, 228, 213, 0.78);
  --glass-strong: rgba(233, 228, 213, 0.92);
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Consolas, ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); color: var(--ink); }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  letter-spacing: -0.005em;
  text-rendering: optimizeLegibility;
}
body.room-open { overflow: hidden; }
a { color: inherit; }
img, video { max-width: 100%; height: auto; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 70;
  transform: translateY(-160%);
  background: var(--forest);
  color: var(--paper);
  padding: 0.75rem 1rem;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
}
.skip-link:focus { transform: translateY(0); }

.gallery-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 3.5rem);
  border-bottom: 1px solid var(--rule);
  background: rgba(233, 228, 213, 0.86);
  backdrop-filter: blur(18px);
}
.gallery-title {
  font-weight: 1000;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
}
.gallery-subtitle {
  display: block;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 0.35rem;
}
.gallery-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 3vw, 1.75rem);
  flex-wrap: wrap;
  justify-content: flex-end;
}
.gallery-nav a {
  min-height: 38px;
  display: inline-flex;
  text-decoration: none;
  color: var(--ink-2);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.gallery-nav a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 0.24em; }

#main {
  position: relative;
  z-index: 1;
  padding-bottom: 3rem;
}

.gallery-stage {
  border-bottom: 1px solid var(--rule);
  padding: clamp(4rem, 9vw, 7rem) clamp(1.25rem, 5vw, 6rem);
}
.stage-kicker {
  color: var(--ochre);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 0.8rem;
}
h1, h2, h3, p { margin-block-start: 0; }
h1 {
  max-width: 14ch;
  font-size: clamp(2.6rem, 6.2vw, 6.2rem);
  line-height: 0.95;
  letter-spacing: -0.048em;
  margin-block-end: 1.2rem;
}
h2 { font-size: clamp(2rem, 4.2vw, 5rem); line-height: 0.97; letter-spacing: -0.038em; margin-block-end: 1rem; }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.45rem); line-height: 1.08; margin-block-end: 0.6rem; }
.stage-lede { max-width: 68ch; color: var(--ink-2); font-size: clamp(1rem, 1.5vw, 1.22rem); line-height: 1.6; }
.stage-note { margin-top: 1.2rem; color: var(--ink-3); font-size: 0.82rem; font-family: var(--mono); }

kbd {
  border: 1px solid var(--rule);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.5);
  padding: 0.12rem 0.36rem;
  font-family: var(--mono);
  font-size: 0.88em;
}

.gallery-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.galley-card {
  min-height: 280px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--rule);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.44);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  cursor: pointer;
  transition: transform 260ms var(--ease), box-shadow 260ms var(--ease), border-color 260ms var(--ease), background 260ms var(--ease);
}
.galley-card:hover, .galley-card:focus-visible {
  transform: translateY(-6px) scale(1.005);
  box-shadow: var(--shadow);
  border-color: var(--ochre);
  background: rgba(255, 255, 255, 0.68);
  outline: none;
}
.galley-card:focus-visible { outline: 3px solid var(--ochre); outline-offset: 2px; }
.galley-media { aspect-ratio: 16 / 9; background: var(--paper-3); overflow: hidden; }
.galley-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 340ms var(--ease); }
.galley-card:hover .galley-media img, .galley-card:focus-visible .galley-media img { transform: scale(1.04); }
.galley-copy { padding: clamp(1rem, 2vw, 1.3rem); }
.galley-copy h3 { margin-block-end: 0.35rem; }
.galley-copy p { margin: 0; color: var(--ink-2); font-size: 0.92rem; line-height: 1.5; }

.proof {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 0.24rem 0.64rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 800;
}
.proof.real { background: rgba(30, 46, 26, 0.1); color: #1d3a16; border: 1px solid rgba(39, 64, 31, 0.32); }
.proof.concept { background: rgba(178, 86, 24, 0.12); color: #8a4e16; border: 1px solid rgba(181, 96, 40, 0.28); }
.proof.built { background: var(--amber-soft); color: #6b4f24; border: 1px solid rgba(138, 110, 57, 0.32); }

.gallery-archive {
  padding: clamp(4.5rem, 9vw, 8rem) clamp(1.25rem, 5vw, 6rem);
  background:
    radial-gradient(circle at 22% 26%, rgba(138, 110, 57, 0.12), transparent 26rem),
    radial-gradient(circle at 78% 80%, rgba(125, 162, 91, 0.12), transparent 24rem),
    var(--paper);
}
.archive-header { max-width: 760px; }
.archive-header p + p { max-width: 70ch; color: var(--ink-2); line-height: 1.65; }
.archive-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.archive-tile {
  border: 1px solid var(--rule);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.42);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}
.archive-tile:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.archive-tile img { aspect-ratio: 16 / 9; width: 100%; object-fit: cover; background: var(--paper-2); }
.archive-label { padding: 1rem 1.1rem 1.2rem; }
.archive-label h3 { margin: 0.35rem 0 0; }

.room {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(29, 36, 26, 0.46);
  backdrop-filter: blur(14px);
}
.room[hidden] { display: none; }

.room-backdrop {
  position: absolute;
  inset: 0;
  cursor: pointer;
}

.room-surface {
  position: relative;
  width: min(1100px, 100%);
  max-height: calc(100svh - 2rem);
  overflow-y: auto;
  border: 1px solid rgba(29, 36, 26, 0.26);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.room-close {
  position: sticky;
  top: 1rem;
  float: right;
  margin: 1rem 1rem 0 0;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgba(233, 228, 213, 0.9);
  color: var(--ink);
  font-weight: 900;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  z-index: 2;
}
.room-close:hover { background: #fff; transform: translateY(-1px); }

.room-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: stretch;
  padding: clamp(1.8rem, 4vw, 3rem);
  border-bottom: 1px solid var(--rule);
}
.room-hero img { border-radius: 16px; width: 100%; background: var(--paper-2); }
.room-hero-copy { align-self: center; }
.room-hero h2 { max-width: 14ch; margin-block-start: 0.8rem; }
.room-meta { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: 0.35rem; color: var(--ink-2); font-size: 0.92rem; }
.room-body { padding: clamp(1.8rem, 4vw, 3rem); color: var(--ink-2); line-height: 1.65; max-width: 72ch; }
.room-body p + p { margin-top: 0.9rem; }

.guide-body { background: var(--paper); }
.guide-main { padding: clamp(3rem, 7vw, 6rem) clamp(1.25rem, 5vw, 6rem); }
.guide-article { width: min(920px, 100%); margin: 0 auto; }
.guide-article h1 { max-width: 14ch; font-size: clamp(2.8rem, 7vw, 5.6rem); }
.guide-article section { border-top: 1px solid var(--rule); padding-top: 2rem; margin-top: 2rem; }
.guide-article p, .guide-list { color: var(--ink-2); line-height: 1.65; font-size: 1.02rem; }
.guide-list { padding-left: 1.25rem; }
.guide-list + p { margin-top: 0.9rem; }
.guide-article code { background: var(--amber-soft); color: #5a3f1a; padding: 0.1rem 0.28rem; border-radius: 6px; font-size: 0.88em; }
.pass-list { color: var(--ink-2); line-height: 1.65; padding-left: 1.25rem; }
.pass-list + p, .pass-list + .guide-list { margin-top: 0; }

.gallery-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  border-top: 1px solid var(--rule);
  padding: 1.4rem clamp(1.25rem, 5vw, 6rem);
  color: var(--ink-3);
  position: relative;
  z-index: 1;
}
.gallery-footer p { margin: 0; }
.gallery-footer a { text-decoration: underline; text-underline-offset: 0.2em; }

@media (max-width: 1020px) {
  .gallery-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .gallery-header { align-items: flex-start; flex-direction: column; }
  .gallery-nav { justify-content: flex-start; }
  .gallery-stage, .gallery-archive { padding-left: 1rem; padding-right: 1rem; }
  .gallery-strip { grid-template-columns: 1fr; }
  .archive-grid { grid-template-columns: 1fr; }
  .room-hero { grid-template-columns: 1fr; }
  h1 { font-size: clamp(2.4rem, 13vw, 4rem); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .galley-card:hover, .galley-card:focus-visible { transform: none; }
  .galley-card:hover .galley-media img, .galley-card:focus-visible .galley-media img { transform: none; }
  .room { background: rgba(29, 36, 26, 0.32); }
  .room[hidden] { display: none; }
}