/**
 * SQL Easy - /lessons/ index page.
 * Loaded only on the curriculum index via the page.css hook.
 */

.lessons-page main { padding: 40px 24px 80px; }
.lessons-page .inner { max-width: 1100px; margin: 0 auto; }
.lessons-page h1 {
  font-family: var(--font-mono);
  font-size: clamp(34px, 5vw, 48px);
  letter-spacing: -0.035em;
  margin: 8px 0 8px;
}
.lessons-page .lead {
  color: var(--c-dim);
  font-size: 16px;
  max-width: 640px;
  line-height: 1.55;
  margin: 0 0 32px;
}

.progress-card {
  background: var(--c-panel);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.progress-card .progress-meta {
  flex: 1;
  min-width: 220px;
}
.progress-card .progress-meta .row {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-dim);
  margin-bottom: 8px;
}
.progress-card .progress-meta .row b { color: var(--c-text); font-weight: 700; }
.progress-bar {
  height: 8px;
  background: var(--c-panel2);
  border-radius: 4px;
  overflow: hidden;
}
.progress-bar .bar {
  height: 100%;
  background: linear-gradient(90deg, var(--c-primary), #a78bfa);
  border-radius: 4px;
  transition: width 0.4s ease;
}
.progress-card .stats {
  display: flex; gap: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-dim);
}
.progress-card .stats b { color: var(--c-text); font-weight: 700; font-size: 18px; display: block; }
.progress-card .reset-link {
  background: none;
  border: 0;
  color: var(--c-faint);
  font-size: 12px;
  cursor: pointer;
  padding: 4px 8px;
}
.progress-card .reset-link:hover { color: var(--c-danger); }

.lessons-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.lesson-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--c-panel);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  color: var(--c-text);
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.lesson-row:hover {
  text-decoration: none;
  transform: translateY(-1px);
  border-color: var(--c-primary);
  box-shadow: 0 6px 20px var(--c-glow);
}
.lesson-row .num {
  flex: 0 0 auto;
  width: 32px; height: 32px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--c-dim);
  background: var(--c-panel2);
  border: 1px solid var(--c-border);
}
.lesson-row.is-done .num {
  background: var(--c-success);
  color: white;
  border-color: var(--c-success);
}
.lesson-row .body { flex: 1; min-width: 0; }
.lesson-row .title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lesson-row .status {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-faint);
  margin-top: 2px;
}
.lesson-row.is-done .status { color: var(--c-success); }
.lesson-row .arrow {
  color: var(--c-faint);
  font-size: 16px;
}
.lesson-row:hover .arrow { color: var(--c-primary); }

.track-section { margin-bottom: 36px; }
.track-section .track-head {
  display: flex; align-items: baseline;
  gap: 16px; margin-bottom: 14px;
  flex-wrap: wrap;
}
.track-section h2 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
}
.track-section .track-blurb {
  color: var(--c-dim);
  font-size: 14px;
}
.track-section .track-progress {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-faint);
}