/* ============================================================
   Layz - pairings page
   ============================================================ */

/* ---------------- page head ---------------- */
.page-head {
  padding: var(--gutter);
  padding-top: calc(var(--header-h) + 7vh);
  padding-bottom: clamp(22px, 4vh, 48px);
}
.page-head .head-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--gutter);
  margin-bottom: clamp(20px, 4vh, 44px);
}
.page-head h1 {
  font-size: clamp(2rem, 7vw, 7rem);
  font-weight: 400;
  line-height: .9;
  letter-spacing: -.045em;
  text-transform: uppercase;
  margin-left: calc(var(--unit) * 2);
}
.page-head .prose { margin-left: calc(var(--unit) * 2); margin-top: 18px; }

/* ---------------- controls ---------------- */
.controls {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 10px var(--gutter);
}
.controls-row {
  display: flex;
  align-items: center;
  gap: var(--gutter);
  flex-wrap: wrap;
}
.shuffle { padding: 12px 20px; }
.shuffle .kbd-hint {
  padding: 2px 6px;
  font-size: 9px;
  border: 1px solid currentColor;
  opacity: .55;
}
.ctrl-sep { width: 1px; height: 18px; background: var(--line); }

/* ---------------- stage ---------------- */
.stage-wrap { padding: var(--gutter); padding-block: clamp(20px, 4vh, 44px); }

.stage {
  border: 1px solid var(--line);
  transition: border-color var(--dur-fast) var(--ease-io);
}
.stage.is-rolling { border-color: var(--fg); }

.stage-bar {
  display: flex;
  align-items: center;
  gap: var(--gutter);
  flex-wrap: wrap;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
}
.stage-bar .pair-tag {
  padding: 3px 8px;
  font-size: var(--t-xs);
  font-weight: 500;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--fg);
}

.stage-body { padding: clamp(26px, 6vh, 70px) clamp(18px, 4vw, 64px); }

.spec-eyebrow {
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--fg-50);
  margin-bottom: clamp(14px, 2.5vh, 26px);
}
.spec-title {
  font-size: clamp(2.2rem, 6.6vw, 5.2rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -.03em;
  margin-bottom: clamp(14px, 2.4vh, 26px);
  outline: none;
}
.spec-deck {
  font-size: clamp(1rem, 1.7vw, 1.4rem);
  line-height: 1.5;
  color: var(--fg-50);
  max-width: 62ch;
  margin-bottom: clamp(20px, 3.4vh, 36px);
  outline: none;
}
.spec-columns {
  column-count: 2;
  column-gap: clamp(22px, 4vw, 54px);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--fg-50);
  outline: none;
}
.spec-columns p + p { margin-top: 1em; }

[contenteditable="true"]:focus { box-shadow: 0 1px 0 0 var(--fg); }
[contenteditable="true"]:hover { cursor: text; }

.spec-scale-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: clamp(24px, 4vh, 44px);
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.spec-scale-row input[type="range"] { width: 110px; }

/* the two font slots */
.slots {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  border-top: 1px solid var(--line);
}
.slot {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 14px;
  min-width: 0;
}
.slot-divider {
  display: grid;
  place-items: center;
  padding-inline: 8px;
  border-inline: 1px solid var(--line);
}
.slot-aa {
  flex: none;
  width: 56px;
  font-size: 2.2rem;
  line-height: 1;
  text-align: center;
}
.slot-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.slot-name {
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: -.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.slot-actions { flex: none; display: flex; gap: 6px; }

.lock-btn {
  width: 26px; height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--fg-50);
  transition: all var(--dur-fast) var(--ease-io);
}
.lock-btn:hover { color: var(--fg); border-color: var(--fg); }
.lock-btn svg { width: 12px; height: 12px; }
.lock-btn[aria-pressed="true"] { background: var(--fg); border-color: var(--fg); color: var(--bg); }

.swap-btn {
  width: 30px; height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  transition: transform .5s var(--ease), background-color var(--dur-fast), color var(--dur-fast);
}
.swap-btn:hover { transform: rotate(180deg); background: var(--fg); color: var(--bg); border-color: var(--fg); }
.swap-btn svg { width: 13px; height: 13px; }

@keyframes rollIn {
  from { clip-path: inset(100% 0 0 0); }
  to   { clip-path: inset(0 0 0 0); }
}
.roll { animation: rollIn .6s var(--ease) both; }

/* ---------------- code panel ---------------- */
.code-panel { border: 1px solid var(--line); border-top: 0; }
.code-panel > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  cursor: pointer;
  font-size: var(--t-xs);
  font-weight: 500;
  text-transform: uppercase;
  color: var(--fg-50);
  list-style: none;
  transition: color var(--dur-fast);
}
.code-panel > summary::-webkit-details-marker { display: none; }
.code-panel > summary:hover { color: var(--fg); }
.code-panel > summary::before {
  content: "+";
  transition: transform .35s var(--ease);
}
.code-panel[open] > summary::before { transform: rotate(45deg); }
.code-panel .inner { padding: 0 14px 16px; }

.code-block {
  padding: 12px 14px;
  border: 1px solid var(--line);
  font-size: 11px;
  line-height: 1.7;
  color: var(--fg-50);
  white-space: pre;
  overflow-x: auto;
}
.code-block + .code-block { margin-top: 8px; }

.shortcuts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding-top: 16px;
  color: var(--fg-50);
}
.shortcuts span { display: inline-flex; align-items: center; gap: 6px; }

/* ---------------- pairing rows ---------------- */
.gallery { border-top: 1px solid var(--line); }

.gcard {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--gutter);
  width: 100%;
  padding: 14px var(--gutter);
  text-align: left;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  animation: rowIn .6s var(--ease-out) both;
  transition: background-color var(--dur-fast) var(--ease-io),
              padding-left .35s var(--ease-out);
}
@keyframes rowIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}
.gcard:hover { background: rgba(var(--fg-rgb), .045); padding-left: calc(var(--gutter) * 2.4); }

.gcard .gnum { flex: none; width: 44px; }
.gcard .gtitle {
  flex: none;
  width: calc(var(--unit) * 2 - var(--gutter));
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  white-space: nowrap;
  overflow: hidden;
}
.gcard .gbody {
  flex: 1;
  min-width: 0;
  font-size: .95rem;
  line-height: 1.5;
  color: var(--fg-50);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.gcard .gfoot {
  flex: none;
  width: calc(var(--unit) * 3 - var(--gutter));
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.gcard .gtag { flex: none; width: calc(var(--unit) * 1 - var(--gutter)); text-align: right; }
.gcard .gremove {
  flex: none;
  width: 22px;
  text-align: right;
  color: var(--fg-30);
  opacity: 0;
  transition: opacity var(--dur-fast), color var(--dur-fast);
}
.gcard:hover .gremove { opacity: 1; }
.gcard .gremove:hover { color: var(--fg); }

.empty-slot {
  margin: 0 var(--gutter);
  padding: 34px 20px;
  text-align: center;
  border: 1px solid var(--line);
  color: var(--fg-50);
}

/* ---------------- responsive ---------------- */
@media (max-width: 1100px) {
  .gcard .gbody { display: none; }
}
@media (max-width: 860px) {
  .page-head h1, .page-head .prose { margin-left: 0; }
  .spec-columns { column-count: 1; }
  .slots { grid-template-columns: 1fr; }
  .slot-divider { border-inline: 0; border-block: 1px solid var(--line); padding-block: 8px; }
  .slot + .slot { border-top: 1px solid var(--line); }
  .gcard .gfoot { width: auto; flex: 1; }
  .gcard .gtitle { width: auto; flex: none; }
}
@media (max-width: 760px) {
  /* keyboard shortcuts are meaningless on a touch device */
  .shortcuts { display: none; }
  .lock-btn { width: 40px; height: 40px; }
  .swap-btn { width: 40px; height: 40px; }
  .slot { padding: 14px var(--gutter); }
  .stage-bar { row-gap: 6px; }
  .spec-scale-row { row-gap: 10px; }
  .spec-scale-row input[type="range"] { flex: 1; }
}

@media (max-width: 620px) {
  .gcard .gtag { display: none; }
  .gcard .gnum { width: 30px; }
  .shuffle { flex: 1 1 100%; justify-content: center; }
}