/* ════════════════════════════════════════════════
   Progress Card
   ════════════════════════════════════════════════ */

/* === PROGRESS CARD === */
.progress-card { padding: 0; overflow: hidden; }
.progress-card .card-header {
    padding: 15px 18px 10px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    display: flex; align-items: center; gap: 10px;
}
.progress-last-studied {
    margin-left: auto; font-size: 10px; color: #555;
}

.progress-section { padding: 14px 18px; border-bottom: 1px solid rgba(255,255,255,0.04); }
.progress-section:last-child { border-bottom: none; }

.progress-label-row {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 8px;
}
.progress-label { font-size: 12px; color: #888; }
.progress-pct   { font-size: 12px; font-weight: 600; color: #c4b5fd; }

.progress-track {
    height: 8px; border-radius: 999px;
    background: rgba(255,255,255,0.07);
    overflow: hidden;
}
.progress-fill {
    height: 100%; border-radius: 999px;
    transition: width 0.6s ease;
    width: 0%;
}
.watch-fill {
    background: linear-gradient(90deg, #7c3aed, #a78bfa);
}

/* Quiz history bar chart */
.quiz-history-chart {
    height: 72px; position: relative;
    display: flex; align-items: flex-end;
}
.quiz-history-empty {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; color: #444;
}
.qh-bars {
    display: flex; align-items: flex-end;
    gap: 4px; width: 100%; height: 100%;
}
.qh-bar-wrap {
    flex: 1; display: flex; flex-direction: column;
    align-items: center; justify-content: flex-end;
    height: 100%; cursor: default; position: relative;
}
.qh-bar-wrap:hover .qh-score-tip { opacity: 1; }
.qh-score-tip {
    position: absolute; top: 0;
    font-size: 9px; color: #aaa;
    opacity: 0; transition: opacity 0.15s;
    white-space: nowrap;
}
.qh-bar {
    width: 100%; border-radius: 3px 3px 0 0;
    transition: height 0.5s ease;
    min-height: 4px;
}
.quiz-history-labels {
    display: flex; gap: 4px; margin-top: 4px;
}
.quiz-history-labels span {
    flex: 1; text-align: center;
    font-size: 8.5px; color: #444;
    white-space: nowrap; overflow: hidden;
}