/* Custom CSS for CPU Scheduling Simulator with Bootstrap */

/* Custom CSS Variables for consistent theming */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

/* Body and Background Styling */
.bg-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #667eea 100%);
}

.bg-overlay {
    background: rgba(255, 255, 255, 0.95);
}

.bg-primary-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

/* Process List Container Styling */
.process-list-container {
    max-height: 200px;
    overflow-y: auto;
}

/* Process List Item Styling */
.process-item {
    background-color: #e9ecef;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.process-item:hover {
    background-color: #dee2e6;
    transform: translateX(4px);
}

.process-info {
    font-size: 0.875rem;
    font-weight: 500;
}

.remove-process {
    background: none;
    border: none;
    color: var(--danger-color);
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.remove-process:hover {
    background-color: var(--danger-color);
    color: white;
}

/* Gantt Chart Styling */
.gantt-container {
    overflow-x: auto;
    padding: 24px 16px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 16px;
    border: 2px solid #e2e8f0;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.06);
}

.gantt-chart {
    display: flex;
    align-items: center;
    margin: 24px 0;
    min-width: 700px;
    padding: 20px 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: 1px solid #e2e8f0;
}

.gantt-process {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1rem;
    border: 2px solid white;
    border-radius: 12px;
    margin-right: 4px;
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    overflow: hidden;
}

.gantt-process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 100%);
    pointer-events: none;
}

.gantt-process:hover {
    transform: translateY(-4px) scale(1.08);
    z-index: 10;
    box-shadow: 0 12px 24px rgba(0,0,0,0.25);
    border-color: #ffd700;
}

.gantt-time-labels {
    display: flex;
    margin-top: 16px;
    min-width: 700px;
    background: white;
    border-radius: 8px;
    padding: 12px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
}

.gantt-time-label {
    font-size: 0.875rem;
    text-align: center;
    font-weight: 600;
    color: #495057;
    border-left: 1px solid #6c757d;
    padding-left: 4px;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    padding: 8px 4px;
    transition: all 0.2s ease;
}

.gantt-time-label:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    transform: scale(1.1);
}

.gantt-time-label:first-child {
    border-left: none;
    border-radius: 8px 0 0 8px;
}

.gantt-time-label:last-child {
    border-radius: 0 8px 8px 0;
}

/* Process Colors */
.process-p1 { background: linear-gradient(45deg, #FF6B6B, #FF8E8E); }
.process-p2 { background: linear-gradient(45deg, #4ECDC4, #44A08D); }
.process-p3 { background: linear-gradient(45deg, #45B7D1, #96C93D); }
.process-p4 { background: linear-gradient(45deg, #FFA07A, #FA8072); }
.process-p5 { background: linear-gradient(45deg, #98D8C8, #F7DC6F); }
.process-p6 { background: linear-gradient(45deg, #BB8FCE, #85C1E9); }
.process-p7 { background: linear-gradient(45deg, #F8C471, #F1948A); }
.process-p8 { background: linear-gradient(45deg, #82E0AA, #AED6F1); }

/* Results Table Styling */
.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    background: white;
    border: 1px solid #e2e8f0;
}

.results-table th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 16px;
    text-align: center;
    font-weight: bold;
    font-size: 1rem;
    border-bottom: 3px solid #5a67d8;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.results-table td {
    padding: 16px;
    text-align: center;
    border-bottom: 1px solid #dee2e6;
    font-size: 1rem;
    font-weight: 500;
    background: #ffffff;
    transition: all 0.3s ease;
}

.results-table tbody tr:nth-child(even) td {
    background: #f8fafc;
}

.results-table tbody tr:hover td {
    background: linear-gradient(135deg, #e6f3ff 0%, #f0f8ff 100%);
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.results-table tbody tr:first-child td {
    border-top: 2px solid var(--primary-color);
}

/* Performance Metrics Styling */
.metrics-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.metric-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 24px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #45b7d1, #ffa07a);
}

.metric-card:hover {
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
    transform: translateY(-8px) scale(1.05);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 8px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    background: linear-gradient(45deg, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-label {
    font-size: 1rem;
    font-weight: 600;
    opacity: 0.95;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* Enhanced Card Styling */
.card {
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.15) !important;
}

.card-header {
    font-weight: 600;
    border-bottom: none;
}

/* Animation for loading */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.loading {
    animation: pulse 1.5s infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
    .gantt-chart {
        min-width: 300px;
    }
    
    .gantt-time-labels {
        min-width: 300px;
    }
    
    .results-table {
        font-size: 0.75rem;
    }
    
    .results-table th,
    .results-table td {
        padding: 8px;
    }
    
    .metrics-container {
        grid-template-columns: 1fr;
    }
    
    .metric-value {
        font-size: 2rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #e9ecef;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, rgba(102, 126, 234, 0.8), rgba(118, 75, 162, 0.8));
}

/* Button Enhancements */
.btn {
    transition: all 0.3s ease;
}

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

/* Input Focus Enhancements */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* Alert/Toast Styling for Bootstrap alerts */
.alert {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1050;
    max-width: 350px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Utility Classes */
.opacity-90 {
    opacity: 0.9;
}

.fw-medium {
    font-weight: 500;
}

.fw-semibold {
    font-weight: 600;
}