/* ===== Quiz History Page - Light Professional Theme ===== */

:root {
    --history-bg: linear-gradient(135deg, #f0f4f8 0%, #e8eef5 100%);
    --history-card-bg: #ffffff;
    --history-border: rgba(26, 75, 132, 0.1);
    --history-text: #1e293b;
    --history-text-muted: #64748b;
    --history-primary: #1a4b84;
    --history-blue: #3b82f6;
    --history-green: #10b981;
    --history-orange: #f59e0b;
    --history-red: #ef4444;
}

body {
    background: var(--history-bg);
    color: var(--history-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ===== Header ===== */
.history-header {
    background: linear-gradient(135deg, #1a4b84 0%, #0f3054 100%);
    padding: 2rem 0 1.5rem;
    margin-top: 60px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.history-title {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}

.history-subtitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.btn-action {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.2rem;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-action:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

.btn-action-primary {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-color: #10b981;
    color: white;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.btn-action-primary:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    border-color: #059669;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

/* ===== Container ===== */
.history-container {
    padding: 2rem 0;
}

/* ===== Stats Cards ===== */
.stat-card {
    background: var(--history-card-bg);
    border: 1px solid var(--history-border);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    border-color: var(--history-primary);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--history-primary) 0%, #0f3054 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(26, 75, 132, 0.3);
}

.stat-icon-blue {
    background: linear-gradient(135deg, var(--history-blue) 0%, #2563eb 100%);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.stat-icon-green {
    background: linear-gradient(135deg, var(--history-green) 0%, #059669 100%);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--history-text-muted);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--history-text);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-trend {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.stat-trend-up {
    color: var(--history-green);
}

.stat-trend-down {
    color: var(--history-primary);
}

/* ===== Chart Section ===== */
.chart-section {
    background: var(--history-card-bg);
    border: 1px solid var(--history-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.chart-header {
    margin-bottom: 1.5rem;
}

.chart-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--history-text);
    margin-bottom: 0.25rem;
}

.chart-subtitle {
    font-size: 0.85rem;
    color: var(--history-text-muted);
    margin: 0;
}

.chart-placeholder {
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== History List ===== */
.history-list-section {
    background: var(--history-card-bg);
    border: 1px solid var(--history-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.history-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.history-list-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--history-text);
    margin: 0;
}

.btn-link {
    background: none;
    border: none;
    color: var(--history-primary);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-link:hover {
    color: #0f3054;
    text-decoration: underline;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.history-item {
    background: #f8fafc;
    border: 2px solid var(--history-border);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.history-item:hover {
    border-color: var(--history-primary);
    background: linear-gradient(135deg, #e0f2fe 0%, #dbeafe 100%);
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.history-item-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: linear-gradient(135deg, #e0f2fe 0%, #dbeafe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--history-primary);
    flex-shrink: 0;
    border: 2px solid var(--history-border);
}

.history-item-content {
    flex: 1;
}

.history-item-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--history-text);
    margin-bottom: 0.35rem;
}

.history-item-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--history-text-muted);
}

.history-item-meta span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.history-item-score {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
}

.history-score-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--history-text);
    line-height: 1;
}

.history-score-label {
    font-size: 0.75rem;
    color: var(--history-text-muted);
}

.history-score-badge {
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-excellent {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: #059669;
    border: 1px solid #10b981;
}

.badge-good {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #2563eb;
    border: 1px solid #3b82f6;
}

.badge-average {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #d97706;
    border: 1px solid #f59e0b;
}

.badge-poor {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #dc2626;
    border: 1px solid #ef4444;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-state i {
    font-size: 4rem;
    color: #cbd5e1;
    margin-bottom: 1.5rem;
}

.empty-state h5 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--history-text);
    margin-bottom: 0.75rem;
}

.empty-state p {
    font-size: 0.95rem;
    color: var(--history-text-muted);
    margin-bottom: 2rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--history-primary) 0%, #0f3054 100%);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(26, 75, 132, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0f3054 0%, #1a4b84 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(26, 75, 132, 0.4);
}

/* ===== Responsive ===== */
@media (max-width: 991px) {
    .history-header {
        padding: 1.5rem 0 1rem;
    }

    .history-title {
        font-size: 1.75rem;
    }

    .btn-action span {
        display: none;
    }

    .stat-value {
        font-size: 1.75rem;
    }
}

@media (max-width: 767px) {
    .history-header {
        padding: 1.25rem 0 1rem;
        margin-top: 55px;
    }
    
    .history-title {
        font-size: 1.5rem;
    }
    
    .history-subtitle {
        font-size: 0.875rem;
    }
    
    .history-container {
        padding: 1.5rem 0;
    }
    
    .stat-card {
        padding: 1.25rem;
        border-radius: 12px;
    }
    
    .stat-icon {
        width: 42px;
        height: 42px;
        font-size: 1.25rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }

    .history-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding: 1rem;
    }

    .history-item-score {
        align-items: flex-start;
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
    }

    .history-score-value {
        font-size: 1.5rem;
    }

    .chart-placeholder {
        min-height: 200px;
    }
    
    .chart-section,
    .history-list-section {
        padding: 1.25rem;
        border-radius: 12px;
    }
    
    .chart-title,
    .history-list-title {
        font-size: 1rem;
    }
    
    .history-item-icon {
        width: 42px;
        height: 42px;
        font-size: 1.25rem;
    }
    
    .history-item-title {
        font-size: 0.95rem;
    }
    
    .history-item-meta {
        font-size: 0.8rem;
        flex-wrap: wrap;
        gap: 0.75rem;
    }
}

@media (max-width: 575px) {
    .history-header {
        padding: 1rem 0 0.875rem;
    }
    
    .history-title {
        font-size: 1.35rem;
    }
    
    .history-subtitle {
        font-size: 0.8rem;
    }
    
    .history-container {
        padding: 1rem 0;
    }
    
    .stat-card {
        padding: 1rem;
        gap: 0.75rem;
    }
    
    .stat-icon {
        width: 38px;
        height: 38px;
        font-size: 1.1rem;
        border-radius: 8px;
    }
    
    .stat-value {
        font-size: 1.35rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .stat-trend {
        font-size: 0.75rem;
    }
    
    .chart-section,
    .history-list-section {
        padding: 1rem;
        border-radius: 10px;
    }
    
    .chart-title,
    .history-list-title {
        font-size: 0.95rem;
    }
    
    .chart-subtitle {
        font-size: 0.8rem;
    }
    
    .history-item {
        padding: 0.875rem;
        border-radius: 10px;
        gap: 0.875rem;
    }
    
    .history-item-icon {
        width: 38px;
        height: 38px;
        font-size: 1.1rem;
        border-radius: 8px;
    }
    
    .history-item-title {
        font-size: 0.9rem;
    }
    
    .history-item-meta {
        font-size: 0.75rem;
        gap: 0.5rem;
    }
    
    .history-score-value {
        font-size: 1.25rem;
    }
    
    .history-score-label {
        font-size: 0.7rem;
    }
    
    .history-score-badge {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }
    
    .btn-action {
        padding: 0.5rem 0.875rem;
        font-size: 0.85rem;
    }
    
    .empty-state {
        padding: 2.5rem 1.5rem;
    }
    
    .empty-state i {
        font-size: 3rem;
    }
    
    .empty-state h5 {
        font-size: 1.1rem;
    }
    
    .empty-state p {
        font-size: 0.875rem;
    }
}