/* Compact collections and a consistent action/result area above the puzzle. */
.echo-page [hidden] { display: none !important; }
.echo-hero { min-height: 250px; padding: 30px 36px; margin-bottom: 14px; }
.echo-hero h1 { font-size: clamp(44px,6vw,66px); }
.echo-hero .echo-kicker { margin-bottom: 12px; }
.echo-toolbar { padding: 12px 0; }
.echo-setup { padding: 20px; background: #211b2a; border-color: var(--echo-line); }
.echo-setup-title { margin-bottom: 16px; }
.echo-setup-title h3 { font-family: var(--font-d); font-size: 23px; }
.echo-category-grid { grid-template-columns: repeat(4,minmax(0,1fr)); gap: 10px; }
.echo-category-choice { position: relative; display: grid; grid-template-columns: 30px minmax(0,1fr) 12px; align-items: center; gap: 10px; min-height: 84px; padding: 14px 12px; border-radius: 12px; border: 1px solid #d1b9e01f; background: #ffffff03; color: var(--text); text-align: left; cursor: pointer; transition: border-color .15s,background .15s; }
.echo-category-choice:hover { border-color: #d6bfea80; background: #d6bfea09; }
.echo-category-choice.active { border-color: #f2d2a499; background: linear-gradient(130deg,#f2d2a415,#d6bfea0a); }
.echo-category-choice:disabled { opacity: .5; cursor: default; }
.echo-category-symbol { font-size: 28px; color: #c8b6df; text-align: center; }
.echo-category-choice.active .echo-category-symbol,.echo-category-check { color: var(--echo-gold); }
.echo-category-copy { min-width: 0; }
.echo-category-copy b { display: block; font-size: 12px; }
.echo-category-copy small { display: block; font-size: 10px; color: var(--muted); margin-top: 6px; }
.echo-category-check { font-size: 11px; }
.echo-category-choice .echo-mini-progress { position: absolute; left: 12px; right: 12px; bottom: 0; margin: 0; height: 2px; border-radius: 0; }
.echo-category-choice .echo-mini-progress u { background: #f2d2a4; }
.echo-round-top { flex-direction: column-reverse; gap: 18px; }
.echo-round-actions { width: 100%; flex-wrap: wrap; justify-content: flex-start; margin: 0; padding-bottom: 14px; border-bottom: 1px solid var(--echo-line); }
.echo-round-actions #newBtn { margin-left: auto; }
.echo-result-actions { display: flex; flex-wrap: wrap; flex: 1 1 auto; gap: 10px; margin: 0; scroll-margin-top: 100px; }
.echo-result-actions button { min-height: 44px; border: 1px solid #e9cfaa66; border-radius: 12px; padding: 11px 17px; background: #f0d3aa; color: #302332; font: 700 13px var(--font-b); cursor: pointer; }
.echo-result-actions button + button { background: #ffffff05; color: #eee0f4; border-color: var(--echo-line); }
.echo-result { margin: 0 0 18px; padding: 22px; background: linear-gradient(120deg,#efd3ad0d,#c4b5fd08); border: 1px solid #eed0a433; border-radius: 16px; }
.echo-result p { line-height: 1.65; }
.echo-discovery-banner { margin-bottom: 10px; padding-bottom: 10px; }
.echo-discovery-banner h2 { margin: 0 0 4px; }
.echo-discovery { grid-template-columns: 1fr; gap: 12px; margin-top: 20px; }
.echo-category-panel { display: grid; grid-template-columns: auto 1fr; gap: 5px 12px; padding: 12px 16px; min-height: 0; border: 1px dashed #cdb6df40; background: #ffffff02; }
.echo-category-panel > span { grid-row: 1 / 3; align-self: center; color: #d2c1dc; font-size: 9px; letter-spacing: .1em; }
.echo-category-panel strong { margin: 0; font-size: 13px; line-height: 1.4; letter-spacing: 0; text-align: left; }
.echo-category-panel small { color: var(--muted); font-size: 11px; line-height: 1.4; }
.echo-category-panel.known { border-style: solid; border-color: #c4dbb947; background: #b8d8b008; }
.echo-category-panel.known strong { color: #d1e4c4; }
.echo-finished :is(.echo-discovery,.echo-guess-form,.echo-guess-notice,.echo-feedback,.echo-live-map,.echo-signal,.echo-history-head,.echo-history,.echo-practice) { display: none; }
.echo-finished .echo-round-top { gap: 10px; }
.echo-finished .echo-round-actions { align-items: center; }
.echo-finished #soundBtn { margin-left: auto; }
.echo-finished .echo-result { margin-top: 18px; }
.echo-finished #roundInfo { display: none; }
.echo-finished .echo-scene-reveal { grid-template-columns: 110px 1fr; margin: 0 0 18px; gap: 18px; }
.echo-category-keepsake { align-items: stretch; text-align: left; padding: 15px; gap: 5px; background: #ffffff02; }
.echo-category-keepsake .echo-album-symbol { font-size: 27px; color: var(--echo-gold); }
.echo-category-keepsake .echo-mini-progress { width: 100%; margin: 6px 0; height: 3px; }
@media(max-width:760px) {
  .echo-hero { min-height: 230px; padding: 26px; }
  .echo-category-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .echo-category-choice { grid-template-columns: 24px minmax(0,1fr); gap: 8px; }
  .echo-category-check { display: none; }
  .echo-round-top { display: flex; }
}
@media(max-width:480px) {
  .echo-hero { min-height: 240px; padding: 24px; }
  .echo-hero h1 { font-size: 46px; }
  .echo-setup { padding: 16px; }
  .echo-category-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px; }
  .echo-category-choice { min-height: 70px; padding: 10px; }
  .echo-category-copy b { font-size: 12px; }
  .echo-category-symbol { font-size: 24px; }
  .echo-result { padding: 16px; }
  .echo-result-actions button { flex: 1 1 auto; }
  .echo-category-panel { grid-template-columns: 1fr; }
  .echo-category-panel > span { grid-row: auto; }
  .echo-finished .echo-scene-reveal { grid-template-columns: 80px 1fr; gap: 12px; }
}