/* jcamd.com — home page composition. Tokens live in frame.css. */

/* ── Opening card ────────────────────────────────────────────────────── */
.opening {
  position: relative;
  display: grid; place-items: center;
  min-height: calc(100svh - var(--header-h));
  padding: var(--sp-9) var(--gutter) var(--sp-10);
  overflow: hidden;
  isolation: isolate;
  text-align: center;
}
.opening__field {
  position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1;
  color: var(--line-strong);
  opacity: 0.55;
  -webkit-mask-image: radial-gradient(ellipse 50% 46% at 50% 50%, transparent 0 34%, #000 78%);
  mask-image: radial-gradient(ellipse 50% 46% at 50% 50%, transparent 0 34%, #000 78%);
}
.crop { position: absolute; width: 22px; height: 22px; border: 0 solid var(--ink); opacity: 0.6; }
.crop--tl { top: var(--sp-6); left: var(--gutter); border-width: 1px 0 0 1px; }
.crop--tr { top: var(--sp-6); right: var(--gutter); border-width: 1px 1px 0 0; }
.crop--bl { bottom: var(--sp-6); left: var(--gutter); border-width: 0 0 1px 1px; }
.crop--br { bottom: var(--sp-6); right: var(--gutter); border-width: 0 1px 1px 0; }

.opening__card { display: grid; justify-items: center; gap: var(--sp-5); max-width: 980px; }
.opening__place { letter-spacing: 0.42em; margin-right: -0.42em; }
.opening__name {
  margin: 0;
  font: 400 var(--t-hero)/0.92 var(--font-display);
  letter-spacing: 0.2em; margin-right: -0.2em;
  text-transform: uppercase;
  white-space: nowrap;
}
.opening__name span { display: inline-block; }
.opening__rule { margin-block: var(--sp-2); }
.opening__lede {
  margin: 0; max-width: 36ch;
  font-size: var(--t-md); line-height: 1.6; color: var(--ink-2);
  text-wrap: balance;
}
.opening__cta { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-4); margin-top: var(--sp-4); }

.opening__cue {
  position: absolute; left: 50%; bottom: var(--sp-5); transform: translateX(-50%);
  display: grid; justify-items: center; gap: var(--sp-3);
  text-decoration: none; padding: var(--sp-2);
}
.opening__cue .label { margin-right: -0.26em; }
.opening__cue:hover .label { color: var(--ink); }
.opening__cue-line { width: 1px; height: 44px; background: linear-gradient(var(--accent), transparent); }

/* the title sequence: one pass, skipped by any input, never hides content
   for anyone with reduced motion or without script */
@media (prefers-reduced-motion: no-preference) {
  .intro:not(.intro-done) .opening__place { animation: fade 1.2s var(--ease) 0.15s both; }
  .intro:not(.intro-done) .opening__name { animation: track-in 1.9s var(--ease) 0.3s both; }
  .intro:not(.intro-done) .opening__rule { animation: draw 1.2s var(--ease) 1.1s both; }
  .intro:not(.intro-done) .opening__lede { animation: rise 1.2s var(--ease) 1.35s both; }
  .intro:not(.intro-done) .opening__cta { animation: rise 1.2s var(--ease) 1.55s both; }
  .intro:not(.intro-done) .opening__field { animation: fade-field 2.4s var(--ease) both; }
  .intro:not(.intro-done) .crop, .intro:not(.intro-done) .opening__cue { animation: fade 1.2s var(--ease) 1.8s both; }
  .opening__cue-line { animation: cue 2.8s var(--ease) 2.4s infinite; transform-origin: top; }
}
@keyframes fade { from { opacity: 0; } }
@keyframes fade-field { from { opacity: 0; transform: scale(1.06); } }
@keyframes track-in { from { opacity: 0; letter-spacing: 0.6em; margin-right: -0.6em; } }
@keyframes draw { from { transform: scaleX(0); } }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ── Section heads ───────────────────────────────────────────────────── */
.section { padding-block: var(--sp-10); }
.band { background: var(--surface); border-block: 1px solid var(--line); }
.section-head { display: grid; justify-items: center; gap: var(--sp-4); text-align: center; margin-bottom: var(--sp-8); }
.section-head .label { margin-right: -0.26em; }
.section-head__sub { margin: 0; color: var(--muted); max-width: 44ch; }

/* ── Work: the sequence ──────────────────────────────────────────────── */
.work { padding-top: var(--sp-10); }
.work .section-head { padding-inline: var(--gutter); margin-bottom: var(--sp-7); }
.frames { list-style: none; margin: 0; padding: 0; }
.frame {
  position: relative;
  max-width: var(--grid-max); margin-inline: auto;
  padding: var(--sp-5) var(--gutter) 0;
}
.frame__bar {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: var(--sp-4);
  font: 500 var(--t-2xs)/1 var(--font-display); letter-spacing: var(--track-label);
  color: var(--muted);
}
.frame__bar span:first-child { color: var(--accent); }
.frame__bar-rule { height: 1px; background: var(--line); }
.frame__body {
  display: grid; justify-items: center; text-align: center;
  gap: var(--sp-4);
  min-height: min(72svh, 640px);
  align-content: center;
  padding: var(--sp-9) 0 var(--sp-10);
}
.plate { width: 88px; height: 88px; color: var(--ink); margin-bottom: var(--sp-4); overflow: visible; }
.plate__dot { fill: var(--accent); }
.frame__host { margin-right: -0.26em; }
.frame__title {
  margin: 0;
  font: 400 var(--t-2xl)/1.05 var(--font-display);
  letter-spacing: var(--track-title); margin-right: calc(var(--track-title) * -1);
  text-transform: uppercase;
  text-wrap: balance;
}
.frame__text {
  margin: var(--sp-2) 0 0; max-width: 54ch;
  color: var(--ink-2); font-size: var(--t-md); line-height: 1.65;
  text-wrap: pretty;
}
.frame__links { display: flex; flex-wrap: wrap; justify-content: center; gap: 0 var(--sp-6); margin: var(--sp-3) 0 0; }

/* ── Ledger (timeline) ───────────────────────────────────────────────── */
.ledger { display: grid; gap: var(--sp-7); padding-block: var(--sp-10); }
.ledger__head { display: grid; justify-items: center; gap: var(--sp-4); text-align: center; }
.ledger__head .label { margin-right: -0.26em; }
.ledger__year {
  margin: var(--sp-2) 0 0;
  font: 300 clamp(3.5rem, 9vw, 6rem)/1 var(--font-display);
  letter-spacing: 0.08em; color: var(--accent);
}
.ledger__list { list-style: none; margin: 0 auto; padding: 0; width: 100%; max-width: 860px; border-top: 1px solid var(--line); }
.ledger__list li {
  display: grid; grid-template-columns: 3rem 1fr; gap: var(--sp-1) var(--sp-5);
  padding: var(--sp-5) 0; border-bottom: 1px solid var(--line);
}
.ledger__n { grid-row: span 2; font: 500 var(--t-xs)/1.9 var(--font-display); letter-spacing: 0.16em; color: var(--muted); }
.ledger__list h3 { margin: 0; font: 500 var(--t-md)/1.4 var(--font-display); letter-spacing: 0.04em; }
.ledger__list p { margin: 0; color: var(--muted); font-size: var(--t-sm); max-width: 62ch; }
@media (min-width: 760px) {
  .ledger__list li { grid-template-columns: 4rem 14rem 1fr; align-items: baseline; }
  .ledger__n { grid-row: auto; }
}

/* ── Principles ──────────────────────────────────────────────────────── */
.principles {
  list-style: none; margin: 0 auto; padding: 0; max-width: 960px;
  display: grid; grid-template-columns: 1fr; gap: 1px;
  background: var(--line); border: 1px solid var(--line);
}
.principles li { background: var(--bg); padding: var(--sp-7) var(--sp-6); text-align: center; display: grid; justify-items: center; gap: var(--sp-3); }
.principles__n { font: 400 var(--t-lg)/1 var(--font-display); letter-spacing: 0.2em; margin-right: -0.2em; color: var(--accent); }
.principles h3 { margin: 0; font: 500 var(--t-md)/1.35 var(--font-display); letter-spacing: 0.03em; }
.principles p { margin: 0; color: var(--muted); max-width: 34ch; font-size: var(--t-sm); }
@media (min-width: 760px) { .principles { grid-template-columns: 1fr 1fr; } }

/* ── Lab ─────────────────────────────────────────────────────────────── */
.lab { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-5); grid-template-columns: 1fr; }
@media (min-width: 900px) { .lab { grid-template-columns: repeat(2, 1fr); } }
.lab__item {
  position: relative;
  display: grid; grid-template-rows: auto auto 1fr auto; gap: var(--sp-3);
  padding: var(--sp-6);
  border: 1px solid var(--line); background: var(--bg);
  transition: border-color var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
}
.lab__item:hover { border-color: var(--line-strong); }
.lab__item:focus-within { border-color: var(--accent); }
.lab__item h3 { margin: 0; font: 500 var(--t-lg)/1.25 var(--font-display); letter-spacing: 0.02em; }
.lab__item p:not(.label) { margin: 0; color: var(--muted); font-size: var(--t-sm); }
.lab__open::before { content: ""; position: absolute; inset: 0; }
.lab + .lab__group { margin-top: var(--sp-8); }
.lab__group {
  display: flex; align-items: baseline; justify-content: center; gap: var(--sp-4);
  margin: 0 0 var(--sp-5); padding-bottom: var(--sp-3); border-bottom: 1px solid var(--line);
}
.lab__group .label { margin: 0; }
@media (min-width: 900px) { .lab__item--feature { grid-column: 1 / -1; } }

/* ── Stack ───────────────────────────────────────────────────────────── */
.stack { margin: 0 auto; max-width: 760px; border-top: 1px solid var(--line); }
.stack > div {
  display: grid; grid-template-columns: 1fr; gap: var(--sp-1);
  padding: var(--sp-4) 0; border-bottom: 1px solid var(--line);
}
.stack dt { font: 500 var(--t-base)/1.4 var(--font-display); letter-spacing: 0.03em; }
.stack dt span { color: var(--muted); font-size: var(--t-sm); letter-spacing: 0.02em; margin-left: var(--sp-2); }
.stack dd { margin: 0; color: var(--muted); font-size: var(--t-sm); }
@media (min-width: 600px) {
  .stack > div { grid-template-columns: 1fr 1fr; align-items: baseline; }
  .stack dd { text-align: right; }
}

/* ── End card ────────────────────────────────────────────────────────── */
.endcard {
  display: grid; place-items: center; text-align: center;
  min-height: min(80svh, 720px);
  padding: var(--sp-10) var(--gutter);
  border-top: 1px solid var(--line);
}
.endcard__in { display: grid; justify-items: center; gap: var(--sp-5); max-width: 720px; }
.endcard__in .label { margin-right: -0.26em; }
.endcard__title { margin: 0; font: 400 var(--t-2xl)/1.15 var(--font-display); letter-spacing: 0.01em; text-wrap: balance; }
.endcard__text { margin: 0; color: var(--muted); max-width: 48ch; }
.endcard .btn { margin-top: var(--sp-4); text-transform: none; letter-spacing: 0.08em; font-size: var(--t-sm); }

/* ── Small screens ───────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .opening { padding-top: var(--sp-8); padding-bottom: var(--sp-10); }
  .opening__name { letter-spacing: 0.12em; margin-right: -0.12em; }
  .crop { display: none; }
  .section { padding-block: var(--sp-9); }
  .frame__body { min-height: 0; padding: var(--sp-8) 0 var(--sp-9); }
  .frame__links { flex-direction: column; align-items: center; }
  .principles li { padding: var(--sp-6) var(--sp-5); }
}
@media (max-width: 600px) and (prefers-reduced-motion: no-preference) {
  @keyframes track-in { from { opacity: 0; letter-spacing: 0.3em; margin-right: -0.3em; } }
}

@media print {
  .opening { min-height: 0; padding: var(--sp-6) 0; }
  .opening__field, .crop, .opening__cue, .opening__cta, .plate { display: none; }
  .frame__body, .endcard { min-height: 0; padding: var(--sp-5) 0; }
}
.opening--short { min-height: calc(88svh - var(--header-h)); }