/* Little Learners — Classroom Model: learning paths + 4-part lessons.
 * Warm-cream Montessori styling. Big touch targets, parent + child friendly. */

.classroom-hero {
  background: linear-gradient(135deg, var(--beige), #fff);
  border-radius: var(--radius);
  padding: 28px 24px;
  margin: 20px 0;
  display: flex;
  gap: 18px;
  align-items: center;
  box-shadow: var(--card-shadow);
}
.classroom-hero img.teacher-face {
  width: 96px; height: 96px; border-radius: 50%;
  object-fit: cover; border: 4px solid #fff;
  box-shadow: var(--card-shadow); flex-shrink: 0;
}
.classroom-hero h1 { margin: 0 0 6px; font-size: 1.5rem; }
.classroom-hero p { margin: 0; color: var(--ink-soft); }

.path-card {
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--card-shadow); padding: 22px;
  margin-bottom: 18px; display: flex; gap: 16px; align-items: center;
}
.path-card .cover { font-size: 3rem; flex-shrink: 0; }
.path-card h2 { margin: 0 0 6px; }
.path-card p { margin: 0 0 12px; color: var(--ink-soft); }

/* Progression ladder */
.ladder { position: relative; margin: 8px 0 24px; padding-left: 8px; }
.ladder::before {
  content: ''; position: absolute; left: 31px; top: 12px; bottom: 12px;
  width: 4px; border-radius: 2px; background: var(--beige);
}
.ladder-step {
  position: relative; display: flex; gap: 16px; align-items: flex-start;
  padding: 12px 0; text-decoration: none; color: var(--ink);
}
.ladder-dot {
  width: 52px; height: 52px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; font-weight: 800; font-family: var(--font-head);
  background: #fff; border: 3px solid var(--beige); color: var(--ink-soft);
  position: relative; z-index: 1;
}
.ladder-step.done .ladder-dot { background: var(--sage); border-color: var(--sage-deep); color: #fff; }
.ladder-step.next .ladder-dot {
  background: var(--yellow); border-color: #E8C84A; color: var(--ink);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(232, 200, 74, .5); }
  50% { box-shadow: 0 0 0 10px rgba(232, 200, 74, 0); }
}
.ladder-body { flex: 1; background: #fff; border-radius: 16px; padding: 14px 16px; box-shadow: var(--card-shadow); }
.ladder-body h3 { margin: 0 0 4px; font-size: 1.05rem; }
.ladder-body p { margin: 0; font-size: .9rem; color: var(--ink-soft); }
.ladder-step.done .ladder-body { opacity: .85; }
.ladder-check {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font-size: 1.3rem;
}

/* Lesson page: 4 parts */
.lesson-teacher {
  display: flex; align-items: center; gap: 12px;
  background: #fff; border-radius: 16px; padding: 14px 16px;
  box-shadow: var(--card-shadow); margin-bottom: 18px;
}
.lesson-teacher img { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.lesson-teacher .t-name { font-weight: 800; font-family: var(--font-head); }
.lesson-teacher .t-cred { font-size: .82rem; color: var(--ink-soft); }

.lesson-part {
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--card-shadow); padding: 22px; margin-bottom: 18px;
}
.lesson-part .part-label {
  display: inline-block; font-size: .78rem; font-weight: 800;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--coral-deep); margin-bottom: 8px;
}
.lesson-part h2 { margin: 0 0 8px; }
.lesson-part p { color: var(--ink-soft); }

.video-placeholder {
  border: 3px dashed var(--coral); border-radius: 16px;
  padding: 32px 20px; text-align: center; background: var(--cream);
}
.video-placeholder img {
  width: 120px; height: 120px; border-radius: 50%; object-fit: cover;
  border: 4px solid #fff; box-shadow: var(--card-shadow); margin-bottom: 12px;
}
.video-placeholder .soon-badge {
  display: inline-block; background: var(--yellow); color: var(--ink);
  font-weight: 800; font-size: .8rem; padding: 6px 14px; border-radius: 999px;
  margin-top: 10px; letter-spacing: .5px;
}

.coach-card {
  background: linear-gradient(135deg, #FFF8E7, #fff);
  border-left: 5px solid var(--sage-deep);
  border-radius: 0 16px 16px 0; padding: 18px;
}
.coach-card .coach-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.coach-card .coach-head img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.coach-card .coach-head strong { font-family: var(--font-head); }
.coach-card p { margin: 0; color: var(--ink); font-size: .95rem; line-height: 1.6; }

.book-cta {
  background: linear-gradient(135deg, var(--coral-deep), var(--coral-dark));
  color: #FFFDF7; border-radius: var(--radius); padding: 26px 22px;
  text-align: center; margin-bottom: 18px; box-shadow: var(--card-shadow);
}
.book-cta h2 { margin: 0 0 8px; color: #fff; }
.book-cta p { margin: 0 0 16px; opacity: .92; }
.book-cta .btn { background: #fff; color: var(--coral-dark); font-weight: 800; }
.book-cta .price-note { font-size: .85rem; opacity: .85; margin-top: 10px; }

.mascot-cheer { text-align: center; padding: 18px 0 6px; font-size: 2.4rem; }
.mascot-cheer p { font-size: .95rem; color: var(--ink-soft); margin: 6px 0 0; }

.big-letter {
  width: 72px; height: 72px; border-radius: 20px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.2rem; font-weight: 800; font-family: var(--font-head);
  background: var(--coral); color: #fff;
}

@media (max-width: 560px) {
  .classroom-hero { flex-direction: column; text-align: center; }
  .ladder::before { left: 27px; }
  .ladder-dot { width: 44px; height: 44px; font-size: 1.2rem; }
}

/* ---- On-screen tracing overlay (kid-proof drawing board) ---- */
.trace-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: var(--cream);
  display: flex; flex-direction: column;
  touch-action: none; overscroll-behavior: none;
  font-family: var(--font-body);
  animation: trace-in .18s var(--ease);
}
@keyframes trace-in { from { opacity: 0; } to { opacity: 1; } }

.trace-topbar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  background: var(--beige);
  border-bottom: 2px solid var(--coral);
}
.trace-title {
  flex: 1; min-width: 0;
  font-family: var(--font-head); font-weight: 800; font-size: 1.05rem; color: var(--ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: center;
}
.trace-btn {
  min-width: 48px; min-height: 48px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 2px solid var(--coral); border-radius: 14px;
  background: #fff; color: var(--ink);
  font-size: 1.35rem; cursor: pointer;
  box-shadow: var(--card-shadow);
  touch-action: manipulation;
}
.trace-btn:active { transform: scale(.94); }
.trace-close { font-size: 1.8rem; font-weight: 800; color: var(--coral-dark); }

.trace-stage-wrap {
  flex: 1; min-height: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 10px;
}
.trace-stage {
  position: relative;
  aspect-ratio: 612 / 792;
  height: 100%; max-width: 100%;
  border-radius: 12px; overflow: hidden;
  box-shadow: var(--shadow-hover);
  background: #fff;
}
/* when width is the constraint, height:100% can overflow — clamp via max */
@supports (width: min(1px, 1px)) {
  .trace-stage { width: min(100%, calc((100vh - 320px) * 0.7727)); height: auto; max-height: 100%; }
}
.trace-sheet, .trace-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
}
.trace-sheet { object-fit: fill; user-select: none; -webkit-user-select: none; pointer-events: none; }
.trace-canvas { touch-action: none; cursor: crosshair; }

.trace-pagenav {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  padding: 6px 12px;
}
.trace-pagenav[hidden] { display: none; }
.trace-dots { display: flex; gap: 10px; }
.trace-dot {
  width: 20px; height: 20px; border-radius: 50%;
  border: 2px solid var(--coral); background: #fff; cursor: pointer;
  padding: 0; touch-action: manipulation;
}
.trace-dot.on { background: var(--coral-deep); }

.trace-tools {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 14px calc(12px + env(safe-area-inset-bottom));
  background: var(--beige);
  border-top: 2px solid var(--coral);
}
.trace-colors { display: flex; gap: 10px; flex-wrap: wrap; }
.trace-swatch {
  width: 48px; height: 48px; border-radius: 50%;
  border: 3px solid #fff; cursor: pointer;
  box-shadow: 0 2px 6px rgba(38,50,56,.25);
  touch-action: manipulation; padding: 0;
}
.trace-swatch.on { border-color: var(--ink); transform: scale(1.12); }
.trace-sizes { display: flex; gap: 10px; align-items: center; }
.trace-size {
  min-width: 48px; min-height: 48px; border-radius: 14px;
  border: 2px solid var(--coral); background: #fff; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  touch-action: manipulation; padding: 0 10px;
}
.trace-size span { display: block; border-radius: 50%; background: var(--ink); }
.trace-size.on { background: var(--yellow); border-color: var(--coral-deep); }

@media (max-width: 560px) {
  .trace-tools { flex-direction: column; gap: 8px; }
  .trace-title { font-size: .95rem; }
}