/* Hallmark · existing GeoValley identity · scoped learning-screen refinement. */
/* Critique: one current concept, a larger diagram, distinct reading and playback roles. */
/* Educational captions and scene numbers are retained as learning content, not marketing decoration. */
:root {
  --science-paper: #fffaf0;
  --science-ink: #243e36;
  --science-muted: #4c675c;
  --science-green: #234d43;
  --science-green-hover: #316657;
  --science-line: #d4dcca;
  --science-soft: #edf2e3;
  --science-gold: #f3cb6c;
  --science-gold-soft: #fff0c6;
  --science-gold-ink: #69501c;
  --science-mark: #ffe49b;
  --science-focus: #247787;
  --science-white: #ffffff;
  --science-shadow: #142d2533;
  --science-display: GeoDisplay, 'Malgun Gothic', sans-serif;
  --science-body: 'Malgun Gothic', system-ui, sans-serif;
}
/* Every rule stays on the explainer. Maps, activities and the global dialog system are unchanged. */
dialog.learning-dialog.concept-dialog.science-focus-player {
  width: min(1180px, calc(100% - 40px));
  max-width: 1180px;
  max-height: calc(100dvh - 32px);
  color: var(--science-ink);
  background: var(--science-paper);
  border: 0;
  border-radius: 24px;
  box-shadow: 0 20px 70px var(--science-shadow);
}
dialog.science-focus-player .dialog-heading { padding: 23px 28px 19px; border-bottom: 1px solid var(--science-line); }
dialog.science-focus-player .dialog-heading h2 { font-family: var(--science-display); font-size: clamp(25px, 2.5vw, 34px); line-height: 1.2; min-width: 0; overflow-wrap: break-word; text-wrap: balance; }
dialog.science-focus-player .dialog-body { padding: 24px 28px; overflow-x: clip; }
dialog.science-focus-player .concept-player { display: grid; grid-template-columns: minmax(0, 1.48fr) minmax(0, 1fr); gap: 16px 28px; align-items: start; }
dialog.learning-dialog.concept-dialog.science-focus-player .concept-visual { grid-column: 1; grid-row: 1; width: 100%; max-width: none; max-height: none; height: auto; min-height: 0; align-self: center; aspect-ratio: 16/9; border: 1px solid var(--science-line); border-radius: 16px; background: var(--science-soft); }
dialog.science-focus-player .concept-visual video { width: 100%; height: 100%; object-fit: contain; }
/* The films draw each name tag on its object, so the old chip row under the picture is not repeated. */
dialog.science-focus-player .concept-labels { display: none; }
dialog.science-focus-player .concept-labels span { font-family: var(--science-body); font-size: clamp(14px, 1.4vw, 18px); line-height: 1.2; padding: 5px 9px; border: 1px solid var(--science-line); border-radius: 8px; color: var(--science-muted); background: var(--science-paper); }
dialog.science-focus-player .concept-labels span.active { color: var(--science-gold-ink); background: var(--science-gold-soft); border-color: var(--science-gold-ink); }
.science-focus-player .concept-reading { grid-column: 2; grid-row: 1 / span 2; min-width: 0; align-self: center; }
.science-focus-player .concept-scene-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
dialog.science-focus-player .concept-current-term { margin: 0; font-family: var(--science-display); font-weight: 400; font-size: clamp(27px, 2.9vw, 40px); line-height: 1.22; text-wrap: balance; word-break: keep-all; overflow-wrap: break-word; }
.science-focus-player .concept-scene-count { flex: none; color: var(--science-muted); font: 700 18px/1.3 var(--science-body); font-variant-numeric: tabular-nums; }
dialog.science-focus-player .concept-caption { display: block; margin: 0; min-height: 4.65em; font-family: var(--science-body); font-size: clamp(20px, 1.9vw, 25px); font-weight: 500; line-height: 1.55; text-align: left; text-wrap: pretty; word-break: keep-all; overflow-wrap: break-word; }
.science-focus-player .concept-takeaway { margin-top: 22px; padding-top: 17px; border-top: 1px solid var(--science-line); }
.science-focus-player .concept-takeaway > strong { display: block; margin-bottom: 7px; font: 700 18px/1.3 var(--science-body); color: var(--science-muted); }
dialog.science-focus-player .concept-summary { margin: 0; padding: 0; border: 0; border-radius: 0; background: none; font: 400 clamp(20px, 1.6vw, 21px)/1.55 var(--science-body); text-align: left; word-break: keep-all; overflow-wrap: break-word; text-wrap: pretty; }
.science-focus-player .science-keyword { color: inherit; background: var(--science-mark); border-radius: .15em; padding: 0 .12em; font-weight: 800; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.science-focus-player .science-focus-progress { grid-column: 1; grid-row: 2; height: 4px; border-radius: 4px; background: var(--science-line); overflow: hidden; margin-top: -8px; }
.science-focus-player .science-focus-progress > span { display: block; width: 100%; height: 100%; background: var(--science-green); transform-origin: left; transform: scaleX(0); }
.science-focus-player .science-focus-rail { grid-column: 1/-1; grid-row: 3; display: flex; align-items: stretch; gap: 12px; min-width: 0; margin: 0; }
.science-focus-player .science-focus-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; flex: 1; min-width: 0; }
#overlay .science-focus-player .science-focus-steps button { display: flex; align-items: center; justify-content: flex-start; gap: 9px; min-height: 56px; min-width: 0; margin: 0; padding: 10px 12px; border: 1px solid var(--science-line); border-radius: 12px; background: var(--science-paper); color: var(--science-muted); font: 400 clamp(18px, 1.4vw, 19px)/1.35 var(--science-body); box-shadow: none; text-align: left; word-break: keep-all; overflow-wrap: break-word; cursor: pointer; transition: background 150ms ease-out, color 150ms ease-out, transform 150ms ease-out; }
.science-focus-player .science-focus-steps button > span { display: grid; place-items: center; flex: 0 0 26px; width: 26px; height: 26px; border-radius: 50%; background: var(--science-soft); color: var(--science-muted); font: 700 14px/1 var(--science-body); }
.science-focus-player .science-focus-steps button.is-current { background: var(--science-gold-soft); border-color: var(--science-gold-ink); color: var(--science-ink); }
.science-focus-player .science-focus-steps button.is-current > span { background: var(--science-gold-ink); color: var(--science-white); }
.science-focus-player .science-focus-steps button.is-seen:not(.is-current) { background: var(--science-soft); }
.science-focus-player .science-focus-toggle { display: inline-flex; align-items: center; justify-content: center; gap: 7px; flex: 0 0 120px; min-height: 56px; margin: 0; padding: 10px 12px; border: 0; border-radius: 12px; background: var(--science-green); color: var(--science-white); font: 700 18px/1.2 var(--science-body); box-shadow: none; cursor: pointer; transition: background 150ms ease-out, transform 150ms ease-out; }
.science-focus-player .science-focus-time { display: none; }
.science-focus-player [hidden] { display: none !important; }
dialog.science-focus-player .science-focus-hint { grid-column: 1/-1; grid-row: 4; margin: -6px 0 0; color: var(--science-muted); font: 400 20px/1.4 var(--science-body); }
dialog.science-focus-player .concept-actions { grid-column: 1/-1; grid-row: 5; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin: 2px 0 0; padding: 16px 0 0; border-top: 1px solid var(--science-line); }
dialog.science-focus-player .concept-actions button { min-height: 50px; font-size: 20px; padding: 9px 18px; border-radius: 12px; box-shadow: none; transition: background 150ms ease-out, transform 150ms ease-out; }
dialog.science-focus-player .concept-actions .primary { background: var(--science-gold); color: var(--science-ink); border: 1px solid var(--science-gold-ink); }
dialog.science-focus-player .concept-actions .secondary { background: none; color: var(--science-green); border: 1px solid var(--science-line); font-family: var(--science-body); font-size: 18px; }
.science-focus-player button:focus-visible { outline: 3px solid var(--science-focus); outline-offset: 3px; }
.science-focus-player .science-focus-rail button:disabled { cursor: not-allowed; opacity: .55; }
dialog.science-focus-player .concept-error { grid-column: 1/-1; grid-row: 6; color: var(--science-ink); background: var(--science-gold-soft); border-radius: 12px; padding: 12px; margin: 0; font-size: 17px; }
dialog.science-focus-player .concept-caption.concept-fallback-cues { font-size: 18px; line-height: 1.5; }
.science-focus-player .concept-fallback-cues > span { display: block; margin-bottom: 10px; }
.science-focus-player ::selection { background: var(--science-gold); color: var(--science-ink); }
@media(hover: hover) and (pointer: fine) {
  .science-focus-player .science-focus-steps button:hover:enabled { background: var(--science-soft); transform: translateY(-1px); }
  .science-focus-player .science-focus-toggle:hover:enabled { background: var(--science-green-hover); transform: translateY(-1px); }
  dialog.science-focus-player .concept-actions button:hover:enabled { transform: translateY(-1px); }
}
.science-focus-player .science-focus-rail button:active:enabled, dialog.science-focus-player .concept-actions button:active:enabled { transform: translateY(1px); }
@media(max-height:700px) and (min-width:701px) {
  dialog.science-focus-player .dialog-heading { padding: 14px 20px; }
  dialog.science-focus-player .dialog-heading h2 { font-size: 25px; }
  dialog.science-focus-player .dialog-body { padding: 14px 20px; }
  dialog.science-focus-player .concept-player { grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 10px 20px; }
  dialog.science-focus-player .concept-current-term { font-size: 27px; }
  .science-focus-player .concept-scene-heading { margin-bottom: 8px; }
  dialog.science-focus-player .concept-caption { min-height: 3.1em; font-size: 20px; line-height: 1.45; }
  .science-focus-player .concept-takeaway { margin-top: 12px; padding-top: 10px; }
  dialog.science-focus-player .concept-summary { font-size: 20px; line-height: 1.4; }
  #overlay .science-focus-player .science-focus-steps button { min-height: 48px; padding: 7px 9px; font-size: 18px; }
  .science-focus-player .science-focus-toggle { min-height: 48px; flex-basis: 112px; }
  dialog.science-focus-player .concept-actions { padding-top: 10px; }
  dialog.science-focus-player .concept-actions button { min-height: 48px; font-size: 18px; padding: 7px 14px; }
}
/* Phone landscape and other short screens: every control stays on screen without scrolling. */
@media(max-height:480px) and (min-width:701px) {
  dialog.learning-dialog.concept-dialog.science-focus-player { max-height: calc(100dvh - 16px); border-radius: 18px; }
  dialog.science-focus-player .dialog-heading { padding: 8px 16px; }
  dialog.science-focus-player .dialog-heading h2 { font-size: 22px; }
  dialog.science-focus-player .dialog-body { padding: 10px 16px; }
  dialog.science-focus-player .concept-player { grid-template-columns: min(34vw, 300px) minmax(0, 1fr); gap: 8px 16px; }
  .science-focus-player .concept-scene-heading, dialog.science-focus-player .science-focus-hint { display: none; }
  dialog.science-focus-player .concept-caption { min-height: 0; font-size: 20px; line-height: 1.35; }
  .science-focus-player .concept-takeaway { margin-top: 6px; padding-top: 6px; }
  .science-focus-player .concept-takeaway > strong { margin-bottom: 2px; }
  dialog.science-focus-player .concept-summary { font-size: 20px; line-height: 1.3; }
  .science-focus-player .science-focus-progress { margin-top: -4px; }
  .science-focus-player .science-focus-rail { gap: 8px; }
  .science-focus-player .science-focus-steps { gap: 6px; }
  #overlay .science-focus-player .science-focus-steps button { min-height: 48px; padding: 4px 8px; gap: 6px; font-size: 18px; line-height: 1.15; }
  .science-focus-player .science-focus-steps button > span { flex-basis: 24px; width: 24px; height: 24px; }
  .science-focus-player .science-focus-toggle { min-height: 48px; flex-basis: 100px; }
  dialog.science-focus-player .concept-actions { padding-top: 0; border-top: 0; }
  dialog.science-focus-player .concept-actions button { min-height: 48px; font-size: 18px; padding: 6px 14px; }
}
@media(max-width:700px) {
  dialog.learning-dialog.concept-dialog.science-focus-player { width: calc(100% - 20px); max-height: calc(100dvh - 20px); border-radius: 18px; }
  dialog.science-focus-player .dialog-heading { padding: 17px 18px; }
  dialog.science-focus-player .dialog-heading h2 { font-size: 24px; }
  dialog.science-focus-player .dialog-body { padding: 18px; }
  dialog.science-focus-player .concept-player { display: flex; flex-direction: column; gap: 14px; }
  dialog.learning-dialog.concept-dialog.science-focus-player .concept-visual { width: 100%; max-height: none; flex: none; }
  .science-focus-player .science-focus-progress { width: 100%; min-height: 4px; margin-top: -10px; }
  .science-focus-player .concept-reading { width: 100%; }
  dialog.science-focus-player .concept-current-term { font-size: 28px; }
  dialog.science-focus-player .concept-caption { font-size: 20px; min-height: 0; }
  .science-focus-player .concept-takeaway { margin-top: 15px; padding-top: 13px; }
  dialog.science-focus-player .concept-summary { font-size: 20px; }
  .science-focus-player .science-focus-rail { flex-wrap: wrap; width: 100%; gap: 10px; }
  .science-focus-player .science-focus-steps { flex-basis: 100%; gap: 6px; }
  #overlay .science-focus-player .science-focus-steps button { flex-direction: column; align-items: flex-start; gap: 6px; padding: 10px; min-height: 64px; font-size: 18px; }
  .science-focus-player .science-focus-toggle { min-height: 48px; flex-basis: 120px; }
  .science-focus-player .science-focus-time { display: block; align-self: center; color: var(--science-muted); font: 400 16px/1.2 var(--science-body); font-variant-numeric: tabular-nums; }
  dialog.science-focus-player .science-focus-hint { margin: -4px 0 0; font-size: 20px; }
  dialog.science-focus-player .concept-actions { width: 100%; padding-top: 14px; gap: 8px; }
  dialog.science-focus-player .concept-actions button { font-size: 18px; padding: 9px 12px; }
}
@media(prefers-reduced-motion:reduce) { .science-focus-player *, .science-focus-player *::before, .science-focus-player *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }
.science-focus-player.science-focus-reduced * { animation: none !important; transition: none !important; }