/* Coda — site mockup. All values come from tokens.css. Sections are "rooms". */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-ui);
  font-size: var(--size-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, p, ol, ul { margin: 0; padding: 0; font-weight: inherit; }
ol, ul { list-style: none; }
a { color: inherit; text-decoration: none; }
em { font-style: italic; }
::selection { background: var(--signal); color: var(--ink); }
:focus-visible { outline: 1px solid var(--signal); outline-offset: 4px; }

/* ---------- Background field + grain ---------- */
#field {
  position: fixed; inset: 0; width: 100%; height: 100%;
  z-index: -2; display: block;
  background: radial-gradient(120% 80% at 50% 40%, #16161b 0%, var(--ink) 70%); /* no-WebGL fallback */
}
.grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.16; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* ---------- Shared pieces ---------- */
.mark { fill: none; stroke: currentColor; overflow: visible; } /* stroke weights live on the symbol */

.placard {
  font-family: var(--font-placard);
  font-size: var(--size-placard);
  font-weight: 300;
  letter-spacing: var(--track-placard);
  text-transform: uppercase;
  color: var(--ash);
}
.display {
  font-family: var(--font-display);
  font-size: var(--size-display);
  line-height: 0.98;
  letter-spacing: -0.02em;
  max-width: 16ch;
  text-wrap: balance;
}
.display em { color: var(--signal); transition: color var(--dur) var(--ease); }
.lead { font-size: var(--size-lead); line-height: 1.4; max-width: 34ch; color: var(--bone); opacity: 0.86; }

.room {
  position: relative;
  min-height: 100svh;
  padding: var(--room) calc(var(--gutter) + 28px) var(--room) var(--gutter);
  display: flex; flex-direction: column; justify-content: center; gap: clamp(28px, 5vh, 56px);
}
.room + .room, #drops { border-top: 1px solid color-mix(in srgb, var(--line) 60%, transparent); }

/* Reveal once, slowly */
.reveal { opacity: 0; transform: translateY(18px); filter: blur(6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), filter var(--dur) var(--ease); }
.reveal.is-in { opacity: 1; transform: none; filter: none; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px var(--gutter);
  mix-blend-mode: difference;
}
.site-header__mark .mark { width: 26px; height: 26px; display: block; }
.site-nav { display: flex; gap: clamp(16px, 3vw, 40px); }
.site-nav a {
  font-family: var(--font-placard); font-size: var(--size-placard);
  letter-spacing: var(--track-placard); text-transform: uppercase;
  opacity: 0.7; transition: opacity 300ms;
}
.site-nav a:hover { opacity: 1; }

/* ---------- Finish meter (scroll as a race) ---------- */
.meter {
  position: fixed; right: calc(var(--gutter) / 2 - 4px); top: 50%; transform: translateY(-50%); z-index: 9;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  font-family: var(--font-placard); font-size: 0.625rem; letter-spacing: 0.14em; color: var(--ash);
}
.meter__end, .meter__now { writing-mode: vertical-rl; text-transform: uppercase; white-space: nowrap; }
.meter__now { color: var(--bone); }
.meter__track { width: 1px; height: 34vh; background: var(--line); position: relative; }
.meter__fill {
  position: absolute; left: -0.5px; right: -0.5px; bottom: 0; height: 100%;
  background: var(--signal); transform-origin: bottom; transform: scaleY(0);
  transition: background var(--dur) var(--ease);
}

/* ---------- Room label ---------- */
.room-label {
  position: fixed; left: var(--gutter); bottom: 22px; z-index: 9;
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-placard); font-size: 0.625rem; letter-spacing: var(--track-placard);
  text-transform: uppercase; color: var(--ash);
}
.room-label__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--signal);
  transition: background var(--dur) var(--ease); animation: pulse 3.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.25; } }
@keyframes breathe { 50% { transform: scale(1.035); opacity: 0.82; } }

/* ---------- Room 00: hero ---------- */
.hero { align-items: center; text-align: center; padding-right: var(--gutter); }
.wordmark {
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-ui); font-weight: 700;
  font-size: var(--size-wordmark); line-height: 1;
  letter-spacing: var(--track-wordmark);
}
/* The "o" is the real glyph; the crosshair is two hairlines laid over it.
   Offsets are tuned to Inter Tight Bold (x-height centre sits 0.59em below the line box top). */
.wordmark__o { position: relative; display: inline-block; }
.wordmark__o::before, .wordmark__o::after { content: ""; position: absolute; background: currentColor; }
.wordmark__o::before { left: 50%; top: var(--o-top); width: var(--o-hair); height: var(--o-height); transform: translateX(-50%); }
.wordmark__o::after { top: var(--o-mid); left: -0.055em; right: -0.055em; height: var(--o-hair); transform: translateY(-50%); }
.wordmark { --o-hair: 0.026em; --o-mid: 0.59em; --o-top: 0.25em; --o-height: 0.68em; }
.hero__line { font-family: var(--font-display); font-size: clamp(1.5rem, 3.4vw, 2.75rem); letter-spacing: -0.01em; }
.hero__top { position: absolute; top: 92px; left: 0; right: 0; }
.hero__cue { position: absolute; bottom: 64px; left: 0; right: 0; animation: pulse 3.2s ease-in-out infinite; }

/* ---------- Room 01: statement ---------- */
.statement__def { max-width: 520px; padding-left: 20px; border-left: 1px solid var(--line); }
.statement__word { font-family: var(--font-display); font-size: 2rem; display: flex; align-items: baseline; gap: 16px; }
.statement__meaning { color: var(--ash); margin-top: 6px; }
.statement__body { display: grid; gap: clamp(32px, 6vh, 64px); }
.statement__body .display { max-width: 18ch; }
.statement__cols { display: grid; grid-template-columns: repeat(2, minmax(0, 34ch)); gap: clamp(24px, 4vw, 64px); color: var(--bone); opacity: 0.8; }

/* ---------- Room 02: exhibition ---------- */
.exhibition-intro { min-height: 80svh; }

.exhibit {
  position: relative;
  min-height: 100svh;
  padding: var(--room) calc(var(--gutter) + 28px) var(--room) var(--gutter);
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 6vw, 96px);
  align-items: start;
  border-top: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.exhibit__info { position: sticky; top: 22vh; display: grid; gap: 22px; }
.exhibit__number { font-family: var(--font-ui); font-weight: 200; font-size: clamp(3.5rem, 8vw, 7rem); line-height: 0.9; letter-spacing: 0.02em; color: var(--signal); }
.exhibit__album { font-family: var(--font-display); font-size: clamp(2rem, 3.6vw, 3.25rem); line-height: 1; font-style: italic; }
.exhibit__artist { font-size: 1.05rem; letter-spacing: 0.04em; }
.exhibit__statement { color: var(--bone); opacity: 0.78; max-width: 32ch; }

.swatches { display: flex; gap: 0; margin-top: 8px; border: 1px solid var(--line); width: fit-content; }
.swatch { width: 74px; }
.swatch__chip { height: 44px; }
.swatch__hex { display: block; padding: 7px 8px; font-size: 0.5625rem; letter-spacing: 0.1em; }

.exhibit__plates { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(14px, 2vw, 28px); }
.plate { display: grid; gap: 14px; }
.plate:nth-child(2) { margin-top: clamp(40px, 9vh, 120px); }
.plate:nth-child(3) { margin-top: clamp(80px, 18vh, 240px); }
.plate__frame {
  aspect-ratio: 4 / 5; position: relative; overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(70% 55% at 50% 45%, color-mix(in srgb, var(--piece) 26%, transparent) 0%, transparent 100%),
    color-mix(in srgb, var(--ink-raised) 72%, transparent);
  backdrop-filter: blur(14px);
  display: grid; place-items: center;
}
.plate__frame svg {
  width: 62%; height: auto; aspect-ratio: 200 / 240;
  fill: color-mix(in srgb, var(--piece) 14%, transparent);
  stroke: var(--piece); stroke-width: 1.2; stroke-linejoin: round;
  filter: drop-shadow(0 0 22px color-mix(in srgb, var(--piece) 45%, transparent));
  transition: transform 1400ms var(--ease), fill 900ms var(--ease);
}
.plate:hover .plate__frame svg { transform: scale(1.05) translateY(-4px); fill: color-mix(in srgb, var(--piece) 42%, transparent); }
.plate__edition { position: absolute; top: 12px; right: 12px; font-size: 0.5625rem; }
.plate__name { font-size: 1.05rem; font-weight: 400; }
.plate__meta { display: flex; justify-content: space-between; gap: 12px; margin-top: 4px; font-size: 0.5625rem; }

/* ---------- Room 03: catalogue ---------- */
.catalogue { border-top: 1px solid var(--line); }
.catalogue__row {
  display: grid; grid-template-columns: 80px minmax(0, 1.2fr) minmax(0, 1.4fr) 110px; gap: 20px; align-items: baseline;
  padding: 22px 0; border-bottom: 1px solid var(--line);
  transition: padding 500ms var(--ease), opacity var(--dur) var(--ease), transform var(--dur) var(--ease), filter var(--dur) var(--ease);
}
.catalogue__row:hover { padding-left: 14px; }
.catalogue__name { font-family: var(--font-display); font-size: clamp(1.5rem, 2.8vw, 2.4rem); line-height: 1.05; }
.catalogue__row > :last-child { text-align: right; }

/* ---------- Room 04: tracklist ---------- */
.tracklist { border-top: 1px solid var(--line); max-width: 860px; }
.tracklist__row { display: grid; grid-template-columns: 56px minmax(0, 1fr) auto; gap: 20px; align-items: baseline; padding: 20px 0; border-bottom: 1px solid var(--line); }
.tracklist__row h3 { font-size: 1.2rem; font-weight: 400; }
.tracklist__row p { color: var(--ash); }

/* ---------- Room 05: tour ---------- */
.tour { display: grid; }
.tour__row { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.tour__city { font-family: var(--font-display); font-size: clamp(3rem, 10vw, 9rem); line-height: 1; letter-spacing: -0.02em; color: transparent; -webkit-text-stroke: 1px var(--ash); transition: color 700ms var(--ease), -webkit-text-stroke-color 700ms var(--ease); }
.tour__row--now .tour__city, .tour__row:hover .tour__city { color: var(--bone); -webkit-text-stroke-color: var(--bone); }
.tour__row--now .placard { color: var(--bone); }

/* ---------- Coda: finish ---------- */
.finish { align-items: center; text-align: center; padding-right: var(--gutter); }
.finish .display { max-width: 18ch; }
.finish__mark { width: clamp(72px, 10vw, 128px); height: clamp(72px, 10vw, 128px); color: var(--bone); animation: breathe 9s ease-in-out infinite; }
.guestlist { display: grid; gap: 14px; width: min(100%, 460px); margin-top: 12px; }
.guestlist__field { display: flex; border-bottom: 1px solid var(--bone); }
.guestlist input {
  flex: 1; min-width: 0; background: none; border: 0; outline: 0; color: var(--bone);
  font: 300 1.1rem var(--font-ui); padding: 14px 0;
}
.guestlist input::placeholder { color: var(--ash); }
.guestlist button {
  background: none; border: 0; color: var(--bone); cursor: pointer; padding: 14px 0 14px 20px;
  font-family: var(--font-placard); font-size: var(--size-placard); letter-spacing: var(--track-placard); text-transform: uppercase;
}
.guestlist button:hover { color: var(--ash); }
.guestlist__note { min-height: 1.4em; color: var(--bone); }

/* ---------- Footer ---------- */
.site-footer {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 32px;
  padding: 28px var(--gutter) 64px; border-top: 1px solid var(--line);
}

/* ---------- Small screens ---------- */
@media (max-width: 860px) {
  .site-nav a:nth-child(2), .site-nav a:nth-child(3) { display: none; }
  .statement__cols { grid-template-columns: 1fr; }
  .exhibit { grid-template-columns: 1fr; }
  .exhibit__info { position: static; }
  .exhibit__plates { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plate:nth-child(2) { margin-top: 48px; }
  .plate:nth-child(3) { margin-top: 0; }
  .catalogue__row { grid-template-columns: 56px minmax(0, 1fr); }
  .catalogue__medium, .catalogue__row > :last-child { grid-column: 2; text-align: left; }
  .meter__track { height: 22vh; }
  .meter { right: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; filter: none; transition: none; }
  .finish__mark, .room-label__dot, .hero__cue { animation: none; }
}