/* ============================================================
   my-learning.css — My Learning Path page
   ============================================================ */

/* Standard page container (--max-w + 24px gutters, same as the landing
   page and topic pickers); the content itself keeps a readable 700px
   column via the child cap below. */
.ml-page {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px var(--page-pad-x) 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.ml-page > * {
  width: 100%;
  max-width: var(--max-w);
}

/* ── Header ── */
.ml-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.ml-header h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  color: var(--clr-text);
  line-height: 1.15;
}

.ml-header h1 span {
  color: var(--clr-primary);
}

.ml-streak {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--clr-accent-dark, #b45309);
  background: var(--clr-accent-light, #fef3c7);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Session CTA card ── */
.ml-session-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.ml-cta__bar {
  height: 4px;
  background: var(--clr-border);
}

.ml-cta__bar-fill {
  height: 100%;
  background: var(--clr-path);
  border-radius: 0 2px 2px 0;
  transition: width 0.6s ease;
  min-width: 12px;
}

.ml-cta__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  min-height: 56px;
}

.ml-cta__stats {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.ml-cta__body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.ml-cta__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.2;
}

.ml-cta__sub {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  line-height: 1.3;
}

.ml-cta__count {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--clr-text);
  line-height: 1;
}

.ml-cta__total {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-text-muted);
}

.ml-cta__time {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  white-space: nowrap;
}

.ml-cta__chip {
  display: inline-flex;
  align-items: center;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.ml-cta__chip--review { background: #fef3c7; color: #b45309; }
.ml-cta__chip--new    { background: var(--clr-path-light); color: var(--clr-path-dark); }

.ml-cta__btn {
  display: inline-block;
  padding: 9px 22px;
  background: var(--clr-path);
  color: #fff;
  font-family: 'Raleway', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background var(--transition), transform var(--transition-bounce);
}

.ml-cta__btn:hover {
  background: var(--clr-path-dark);
  transform: translateY(-1px);
}

.ml-cta__done {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--clr-success);
}

/* ══════════════════════════════════════════════════════════
   Trail section
   ══════════════════════════════════════════════════════════ */
.ml-trail-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ml-section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.ml-trail-wrap { width: 100%; }

/* ── Snake trail container ──
   Absolute positioning: JS places every node and connector at exact coordinates. */
.ml-trail--snake {
  position: relative;
  width: 100%;
  /* height set by JS */
}

/* ── Diagonal connector ── */
.ml-h-conn {
  position: absolute;
  height: 3px;
  background: var(--clr-border);
  border-radius: 2px;
  transition: background 0.3s;
  transform-origin: left center;
  /* left, top, width, transform set by JS */
}
.ml-h-conn--done { background: var(--clr-success, #16a34a); }

/* ── Node ── */
.ml-snode {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  /* left, top, width set by JS */
}

/* Topic pin — always shown on every node */
.ml-snode__topic {
  font-size: 0.55rem;
  font-weight: 700;
  color: var(--clr-text-muted);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  padding: 1px 6px;
  white-space: nowrap;
  letter-spacing: 0.03em;
  max-width: 100%;
  overflow: visible;
  text-align: center;
  /* Sits above bubble; gap: 10px on .ml-snode keeps clear of active glow */
}

/* Bubble */
.ml-snode__bubble {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  line-height: 1;
  background: var(--clr-surface);
  border: 3px solid var(--clr-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  text-decoration: none;
  transition: transform 0.18s, box-shadow 0.18s;
  cursor: default;
  user-select: none;
  flex-shrink: 0;
}

.ml-snode--done .ml-snode__bubble {
  background: var(--clr-success, #16a34a);
  border-color: var(--clr-success, #16a34a);
  color: #fff;
}
.ml-snode--active .ml-snode__bubble {
  background: var(--clr-path);
  border-color: var(--clr-path);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 0 0 6px rgba(201,146,10,0.22), 0 4px 16px rgba(201,146,10,0.32);
  animation: ml-snake-pulse 2s ease-in-out infinite;
}
.ml-snode--active .ml-snode__bubble:hover { transform: scale(1.06); }
.ml-snode--pending .ml-snode__bubble { opacity: 0.45; }

@keyframes ml-snake-pulse {
  0%, 100% { box-shadow: 0 0 0 6px rgba(201,146,10,0.22), 0 4px 16px rgba(201,146,10,0.30); }
  50%       { box-shadow: 0 0 0 10px rgba(201,146,10,0.10), 0 6px 22px rgba(201,146,10,0.18); }
}

.ml-snode__check { font-size: 1.4rem; font-weight: 900; line-height: 1; }

/* Groups label + badge with no gap between them */
.ml-snode__info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.ml-snode__label-row {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}
.ml-snode__label {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--clr-text-muted);
  text-align: center;
  letter-spacing: 0.02em;
}
.ml-snode--done .ml-snode__label   { color: var(--clr-success, #16a34a); }
.ml-snode--active .ml-snode__label { color: var(--clr-path); font-weight: 800; }

.ml-snode__new-badge,
.ml-snode__review-badge {
  font-size: 0.52rem;
  font-weight: 800;
  border-radius: var(--radius-full);
  padding: 2px 6px;
  white-space: nowrap;
  /* Always full opacity — badge must be readable even on pending (faded) nodes */
  opacity: 1 !important;
}

.ml-snode__new-badge {
  color: #fff;
  background: var(--clr-path);
}

.ml-snode__review-badge {
  color: #92400e;
  background: #fde68a;
}

/* ── Responsive ── */
@media (max-width: 480px) {
  .ml-page { padding: 24px var(--page-pad-x) 48px; }
  .ml-snode__bubble { width: 56px; height: 56px; font-size: 1.4rem; }
}