/* ==========================================================================
   Estilos de PracticeAnalyticsTool (Dashboard de Analíticas y Progresión)
   Diseño de Estudio Profesional Grado Comercial (Anti-IA)
   ========================================================================== */

.analytics-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(4, 5, 8, 0.88);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeInModal var(--duration-normal) var(--ease-spring);
}

.analytics-modal-card {
  width: 100%;
  max-width: 760px;
  max-height: 94vh;
  overflow-y: auto;
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.85);
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  color: var(--text-primary);
  box-sizing: border-box;
}

/* CABECERA */
.analytics-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.analytics-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #ff9100;
  background: rgba(255, 145, 0, 0.12);
  border: 1px solid rgba(255, 145, 0, 0.3);
  padding: 3px 8px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 6px;
}

.analytics-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}

.analytics-subtitle {
  margin: 4px 0 0 0;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.btn-close-analytics {
  background: var(--border-subtle);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.btn-close-analytics:hover {
  background: #ff5252;
  color: white;
  border-color: #ff5252;
}

/* KPI CARDS */
.analytics-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.kpi-card {
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.kpi-card.highlight-streak {
  border-color: rgba(255, 112, 67, 0.4);
  background: linear-gradient(135deg, rgba(255, 87, 34, 0.08), rgba(255, 145, 0, 0.05));
}

.kpi-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.kpi-data {
  display: flex;
  flex-direction: column;
}

.kpi-value {
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--text-primary);
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.kpi-label {
  font-size: 0.68rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* SECTION CARDS */
.analytics-section-card {
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.section-card-header h3 {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 800;
}

/* WEEKLY BAR CHART */
.weekly-bar-chart-container {
  width: 100%;
  padding-top: 8px;
}

.bar-chart-flex {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px;
  height: 120px;
}

.bar-chart-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  gap: 4px;
}

.bar-value-label {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  height: 14px;
}

.bar-track {
  flex: 1;
  width: 100%;
  max-width: 32px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 6px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.bar-fill {
  width: 100%;
  background: linear-gradient(180deg, #ff7043, #e64a19);
  border-radius: 6px 6px 0 0;
  transition: height 0.4s ease;
}

.bar-chart-col.is-today .bar-fill {
  background: linear-gradient(180deg, #00e676, #00b0ff);
  box-shadow: 0 0 10px rgba(0, 230, 118, 0.4);
}

.bar-day-name {
  font-size: 0.72rem;
  color: var(--text-secondary);
  font-weight: 700;
}

/* MONTH HEATMAP */
.month-heatmap-grid {
  display: grid;
  grid-template-columns: repeat(15, 1fr);
  gap: 4px;
}

.heatmap-cell {
  aspect-ratio: 1;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.05);
  transition: transform 0.15s;
}

.heatmap-cell:hover {
  transform: scale(1.25);
}

.heatmap-cell.lvl-1 { background: rgba(0, 230, 118, 0.25); }
.heatmap-cell.lvl-2 { background: rgba(0, 230, 118, 0.5); }
.heatmap-cell.lvl-3 { background: rgba(0, 230, 118, 0.75); }
.heatmap-cell.lvl-4 { background: #00e676; box-shadow: 0 0 4px rgba(0, 230, 118, 0.5); }

.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.68rem;
  color: var(--text-muted);
}

.legend-box {
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

.legend-box.lvl-0 { background: rgba(255, 255, 255, 0.05); }
.legend-box.lvl-1 { background: rgba(0, 230, 118, 0.25); }
.legend-box.lvl-2 { background: rgba(0, 230, 118, 0.5); }
.legend-box.lvl-3 { background: #00e676; }

/* SPLIT ROW */
.analytics-split-row {
  display: flex;
  gap: 12px;
}

.split-half {
  flex: 1;
}

/* TOP SONGS */
.top-songs-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.top-song-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.song-rank {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--accent-amber);
}

.song-meta-col {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.song-row-title {
  font-size: 0.82rem;
}

.song-row-sub {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.song-row-time {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-primary);
}

/* MILESTONES */
.milestones-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.milestone-badge-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.milestone-badge-card.unlocked {
  border-color: rgba(255, 179, 0, 0.3);
  background: linear-gradient(135deg, rgba(255, 179, 0, 0.06), transparent);
}

.milestone-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.milestone-text {
  display: flex;
  flex-direction: column;
  font-size: 0.78rem;
}

.milestone-text strong {
  font-size: 0.82rem;
}

.milestone-text span {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.milestone-date {
  color: #00e676 !important;
  font-weight: 700;
  margin-top: 2px;
}

.milestone-locked-tag {
  color: var(--text-muted) !important;
  margin-top: 2px;
}

@media (max-width: 600px) {
  .analytics-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .analytics-split-row {
    flex-direction: column;
  }
  .analytics-modal-card {
    padding: 16px;
  }
}