/* app-stats.css — parte 8 del split de styles-professional.css (2026-07-18).
   Leaderboard y Stats: tablas, tarjetas de ranking.
   ORDEN DE CARGA OBLIGATORIO: app-base → header-nav → home → practice →
   browse → strokes → quiz → stats → enhancements → dashboard-extras.
   La cascada depende de este orden; no reordenar los <link>. */

/* ============================================================================
   11. LEADERBOARD & STATS
   ============================================================================ */
.leaderboard-section,
.stats-overview {
    background: var(--bg-panel);
    padding: 20px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stats-overview h2 {
    margin: 0 0 20px;
    font-size: 1.3rem;
}

.leaderboard-header {
    text-align: center;
    margin-bottom: 30px;
}

.leaderboard-title {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--text-main);
}

.leaderboard-controls {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    background: rgba(255, 255, 255, 0.03);
    padding: 15px;
    border-radius: var(--radius-md);
}

.control-select {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

.leaderboard-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.leaderboard-rank {
    font-size: 1.2rem;
    font-weight: 700;
    width: 40px;
    color: var(--text-muted);
}

.leaderboard-rank.top-1 {
    color: #fbbf24;
}

/* Gold */
.leaderboard-rank.top-2 {
    color: #94a3b8;
}

/* Silver */
.leaderboard-rank.top-3 {
    color: #b45309;
}

/* Bronze */

.leaderboard-user {
    flex: 1;
    font-weight: 600;
    color: var(--text-main);
}

.leaderboard-score {
    font-weight: 700;
    color: var(--primary);
}

/* Stats */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 10px;
}

.stat-card {
    background: var(--color-bg-hover);
    padding: 20px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--color-border-subtle);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.stats-empty-state {
    margin-top: 20px;
    padding: 28px 20px;
    border-radius: var(--radius-md);
    border: 1px dashed var(--color-border);
    background: var(--color-bg-hover);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
}

.stats-empty-icon {
    color: var(--text-muted);
}

.stats-empty-state h3 {
    color: var(--text-main);
    font-size: 1.1rem;
}

.stats-empty-state p {
    color: var(--text-muted);
    max-width: 480px;
}

/* Stats Dashboard Layout & Achievements */
.stats-dashboard-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 12px;
    margin-bottom: 12px;
}

.stats-chart-card,
.stats-achievements-card,
.level-progress {
    background: rgba(30, 41, 59, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

html[data-theme="light"] .stats-chart-card,
html[data-theme="light"] .stats-achievements-card,
html[data-theme="light"] .level-progress {
    background: rgba(255, 248, 240, 0.85);
    border: 1px solid var(--color-border);
    box-shadow: 0 10px 30px rgba(139, 0, 0, 0.05);
}

.stats-chart-card h3,
.stats-achievements-card h3,
.level-progress h3 {
    margin-top: 0;
    margin-bottom: 18px;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    border-left: 4px solid var(--primary);
    padding-left: 10px;
}

.canvas-chart-wrap {
    width: 100%;
    overflow-x: auto;
    display: flex;
    justify-content: center;
}

#stats-canvas-chart {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Achievements Grid */
.stats-achievements-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    max-height: 250px;
    overflow-y: auto;
    padding-right: 6px;
}

/* Custom Scrollbar for Achievements Grid */
.stats-achievements-grid::-webkit-scrollbar {
    width: 6px;
}

.stats-achievements-grid::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 4px;
}

.stats-achievements-grid::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
}

.stats-achievements-grid::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.22);
}

.achievement-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.achievement-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.achievement-badge--unlocked {
    border-color: rgba(52, 211, 153, 0.18);
    background: rgba(16, 185, 129, 0.04);
}

.achievement-badge--locked {
    opacity: 0.58;
}

.achievement-icon {
    width: 38px;
    height: 38px;
    min-width: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.4s ease;
}

.achievement-badge:hover .achievement-icon {
    transform: scale(1.1) rotate(6deg);
}

.achievement-info {
    flex: 1;
    min-width: 0;
}

.achievement-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.achievement-desc {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 2px;
    line-height: 1.25;
}

.achievement-status {
    font-size: 0.68rem;
    font-weight: 700;
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.achievement-badge--unlocked .achievement-status {
    color: #34d399;
}

.achievement-badge--locked .achievement-status {
    color: #64748b;
}

/* Responsiveness for Stats Dashboard */
@media (max-width: 900px) {
    .stats-dashboard-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .stats-overview {
        padding: 14px;
    }

    .stats-cards {
        grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
        gap: 10px;
    }

    .stat-card {
        padding: 14px 10px;
    }

    .stat-value {
        font-size: 1.6rem;
    }

    .stats-chart-card,
    .stats-achievements-card,
    .level-progress {
        padding: 14px;
        border-radius: var(--radius-md);
    }

    .stats-achievements-grid {
        grid-template-columns: 1fr;
    }

    .achievement-badge {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .stats-cards {
        grid-template-columns: 1fr 1fr;
    }

    .leaderboard-controls {
        flex-direction: column;
        gap: 8px;
    }

    .leaderboard-item {
        padding: 10px 12px;
    }
}