/* /method: the five layers as a stack of paper cards (one open at a time, native <details name>),
   and the limits gathered in one newsprint box. Builds on .seal and the collage frames in site.css. No JS. */

/* ---------- the stack ---------- */
.layers-hint { font: 700 14px/1.3 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--berry-dark); margin-top: 8px; }
.layer-stack { margin-top: 10px; padding: 4px 0 6px; }

.layer {
  position: relative;
  border: 18px solid transparent;
  border-image: url(/img/collage/frame-card.webp) 52 fill / 18px / 6px round;
  filter: drop-shadow(0 6px 6px rgba(43, 34, 48, .12));
  transform: rotate(var(--tilt, 0deg));
  transition: transform .3s var(--ease), margin .3s var(--ease);
}
.layer + .layer { margin-top: -14px; }
.layer:nth-child(odd) { --tilt: -.8deg; }
.layer:nth-child(even) { --tilt: .7deg; margin-left: 6px; }
.layer[open] { --tilt: 0deg; z-index: 2; margin-left: 0; margin-bottom: 18px; }
.layer[open] + .layer { margin-top: 0; }

.layer summary {
  list-style: none;
  display: grid;
  grid-template-columns: 28px auto 1fr 32px;
  align-items: center;
  gap: 4px 10px;
  min-height: 52px;
  padding: 4px 2px;
  cursor: pointer;
  border-radius: 4px;
}
.layer summary::-webkit-details-marker { display: none; }
.layer summary::after { justify-self: center; } /* the shared fold marker (site.css) */
@media (hover: hover) { .layer summary:hover .layer-name { color: var(--berry); } }
.layer summary:focus-visible { outline: 3px solid var(--berry); outline-offset: 4px; }

.layer-n { font: 400 28px/1 var(--serif); color: var(--berry); text-align: center; }
.layer-name { grid-column: 3; font: 600 25px/1.05 var(--serif); color: var(--ink); }
.layer-tease { display: block; margin-top: 4px; font: 400 15.5px/1.35 var(--sans); color: var(--ink); }

/* a flat chip per layer, drawn with hard stops (a sign, not a swatch) */
.layer-chip { grid-column: 1; grid-row: 1; justify-self: center; width: 26px; height: 26px; border-radius: 3px; box-shadow: 0 0 0 1.5px rgba(43, 34, 48, .35); opacity: .9; }
.layer-n { grid-column: 2; grid-row: 1; }
.layer[data-layer="color"] .layer-chip { background: linear-gradient(90deg, #9C2C4E 0 33%, #C9A24B 33% 66%, #B9A3D0 66%); }
.layer[data-layer="contrast"] .layer-chip { background: linear-gradient(90deg, #2B2230 0 50%, #F6DCE2 50%); }
.layer[data-layer="line"] .layer-chip { background: #FFFDF8; box-shadow: inset 0 0 0 6px #FFFDF8, inset 0 0 0 9px #2B2230, 0 0 0 1.5px rgba(43, 34, 48, .35); border-radius: 50%; }
.layer[data-layer="scale"] .layer-chip { background: radial-gradient(circle at 30% 70%, #2B2230 0 4px, transparent 4.5px), radial-gradient(circle at 66% 40%, #9C2C4E 0 9px, transparent 9.5px), #FFFDF8; }
.layer[data-layer="chosen"] .layer-chip { background: #E8A7B5; border-radius: 50% 50% 46% 54% / 60% 60% 40% 40%; }

.layer-body { margin: 10px 0 0; display: grid; gap: 12px; padding-top: 12px; border-top: 1.5px dashed rgba(43, 34, 48, .25); }
.layer-body dt { font: 700 13px/1.2 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-muted); }
.layer-body dd { margin: 4px 0 0; font-size: 17.5px; line-height: 1.5; color: var(--ink); }
.layer-body .seal { margin-bottom: 4px; }
.layer-go { margin: 14px 0 2px; }
.layer-go a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 700; }
.layer-go a::after { content: "\2192"; margin-left: 8px; }

/* ---------- the limits box ---------- */
.limits {
  position: relative;
  margin-top: 56px;
  padding: 6px 2px 8px;
  border: 18px solid transparent;
  border-image: url(/img/collage/frame-news.webp) 52 fill / 18px / 6px round;
}
.limits::before { content: ""; position: absolute; top: -40px; left: 18%; width: 120px; height: 34px; transform: rotate(-4deg); background: url(/img/collage/tape-kraft.webp) center / contain no-repeat; pointer-events: none; }
.limits-label { font: 700 13.5px/1.2 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--berry); }
.limits h2 { margin-top: 8px; font-size: clamp(26px, 5.4vw, 36px); }
.limits-lead { margin-top: 12px; font-size: 18px; line-height: 1.5; color: var(--ink); }
.limits h3 { margin-top: 22px; font: 700 14px/1.2 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft); }
.limits-list { margin: 10px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.limits-list li { position: relative; padding-left: 20px; font-size: 17px; line-height: 1.5; color: var(--ink); }
.limits-list li::before { content: ""; position: absolute; left: 2px; top: .5em; width: 8px; height: 8px; border-radius: 50% 40% 55% 45%; background: var(--berry); }

@media (min-width: 760px) {
  .layer summary { grid-template-columns: 40px auto 1fr 34px; }
  .layer-name { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
  .layer-tease { margin-top: 0; }
  .limits { padding: 14px 18px 18px; }
  .limits-list { grid-template-columns: 1fr 1fr; gap: 12px 28px; }
  .limits-lead { max-width: 40em; }
}

@media (prefers-reduced-motion: reduce) {
  .layer, .layer summary::after { transition: none; }
}