/* Curriculum, noise filter and vocabulary layer — matches nautical.css */
.teacher-video-panel { padding: 16px 0; border-bottom: 1px solid var(--line); min-width: 0; }
.teacher-video-panel .button { min-height: 44px; padding: 10px 16px; }
.teacher-video-panel summary { cursor: pointer; font-size: 13px; font-weight: 700; }
.teacher-video-panel label { display: block; margin: 12px 0 6px; font-size: 12px; }
.teacher-video-panel input[type="file"] { display: block; width: 100%; max-width: 100%; min-width: 0; font-size: 12px; }
.teacher-video-panel video { display: block; }
.teacher-video-panel video[hidden] { display: none; }
.curriculum-controls { margin: 4px 0 0; padding: 22px 0 24px; border-bottom: 1px solid var(--line); color: var(--ink); }
.curriculum-heading, .key-terms-heading { margin: 8px 0 14px; font: 500 21px/1.15 var(--display); letter-spacing: -.03em; color: var(--ink); }
.curriculum-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.curriculum-field label, .pin-vocabulary-form label { display: block; margin: 0 0 6px; color: var(--ink); font-size: 12px; font-weight: 700; }
.curriculum-field select, .pin-vocabulary-form input, .pin-vocabulary-form textarea { width: 100%; min-height: 42px; padding: 9px 11px; border: 1px solid #b9cbc4; border-radius: 3px; background: #fffdf6; color: var(--ink); font: inherit; font-size: 13px; }
.pin-vocabulary-form textarea { resize: vertical; line-height: 1.45; }
.curriculum-field select:focus-visible, .pin-vocabulary-form input:focus-visible, .pin-vocabulary-form textarea:focus-visible { outline: 2px solid #176276; outline-offset: 2px; }
.curriculum-hint { margin: 6px 0 0; color: #4f6470; font-size: 11px; }
.curriculum-switch-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 42px; margin-top: 22px; padding: 9px 12px; border: 1px solid #c9d7d1; border-radius: 3px; background: #dce9e5; }
.toggle:disabled { cursor: not-allowed; opacity: .5; }
.curriculum-status { margin: 10px 0 0; color: #145e70; font-size: 11px; line-height: 1.45; }
.key-terms-panel { margin-top: 18px; padding: 18px; border: 1px solid #c9d7d1; border-left: 3px solid var(--brass, #bb9864); border-radius: 3px; background: #f3f0e5; }
.detected-key-terms { display: flex; flex-wrap: wrap; gap: 8px; min-height: 44px; }
.key-terms-empty { margin: 0; color: #4f6470; font-size: 12px; line-height: 1.5; }
.detected-key-terms button { display: inline-flex; align-items: center; gap: 6px; min-height: 34px; padding: 0 12px; border: 1px solid #176276; border-radius: 3px; background: #fffdf6; color: #0c3548; font-size: 12px; font-weight: 700; }
.detected-key-terms button:hover, .detected-key-terms button[aria-pressed="true"] { background: #176276; color: #f8f5ec; }
.detected-key-terms button svg { width: 17px; height: 17px; flex: 0 0 17px; }
.detected-term-actions { display: inline-flex; flex-wrap: wrap; gap: 4px; }
.pin-vocabulary-form select, .saved-vocabulary-panel select { width: 100%; min-height: 42px; padding: 9px 11px; border: 1px solid #b9cbc4; border-radius: 3px; background: #fffdf6; color: var(--ink); font: inherit; font-size: 13px; margin-bottom: 12px; }
.saved-vocabulary-panel { margin-top: 18px; padding-top: 16px; border-top: 1px dashed #bccbc5; }
.saved-vocabulary-panel label { display: block; margin: 12px 0 6px; color: var(--ink); font-size: 12px; font-weight: 700; }
.saved-vocabulary-panel .curriculum-hint { line-height: 1.6; }
.pin-actions button:disabled { opacity: .5; cursor: not-allowed; }
.pin-vocabulary-form { display: grid; gap: 4px; margin-top: 16px; padding-top: 16px; border-top: 1px dashed #bccbc5; }
.pin-vocabulary-form > .setting-label { margin-bottom: 6px; }
.pin-vocabulary-form textarea { margin-bottom: 6px; }
.pin-vocabulary-form input { margin-bottom: 8px; }
.pin-optional { color: #4f6470; font-weight: 500; }
.pin-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.pin-actions .button { width: auto; padding: 0 14px; border-radius: 3px; }
.pin-actions .button span { display: inline; }
.pin-actions .button-primary { min-height: 40px; background: #176276; }
.pinned-vocabulary { margin: 26px 0 0; padding: 18px 20px; border: 1px solid rgba(14, 56, 72, .18); border-left: 4px solid #bb9864; border-radius: 4px; background: #fbf8ec; color: #10394b; box-shadow: 4px 4px 0 rgba(190, 162, 111, .16); animation: rise-in .45s ease both; }
.pinned-vocabulary { position: sticky; top: 12px; z-index: 5; }
.pinned-vocabulary[hidden] { display: none; }
.pinned-head { display: flex; align-items: center; gap: 8px; color: #8a5a3f; }
.pinned-icon { width: 18px; height: 18px; }
.pinned-head h4 { margin: 0; font-size: 11px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
.pinned-term { margin: 10px 0 4px; font: 600 clamp(24px, 3vw, 32px)/1.1 var(--display); letter-spacing: -.03em; color: #0c3548; overflow-wrap: anywhere; }
.pinned-definition { margin: 0 0 14px; color: #1f4557; font-size: 16px; line-height: 1.55; overflow-wrap: anywhere; }
.pinned-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.pinned-speak { width: auto !important; padding: 0 13px !important; border-radius: 3px; }
.pinned-speak span { display: inline !important; }
.pinned-audio-status { margin: 0; color: #145e70; font-size: 12px; }
@media (max-width: 620px) {
  .curriculum-grid { grid-template-columns: 1fr; }
  .curriculum-switch-row { margin-top: 0; }
  .key-terms-panel { padding: 14px; }
  .pinned-vocabulary { padding: 15px; }
}
@media (prefers-reduced-motion: reduce) {
  .pinned-vocabulary { animation: none; }
}