/* Custom Styles for Professional Budget Presentation */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    scroll-behavior: smooth;
}

/* Navigation Styles */
.navbar {
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95) !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

/* Section Styles */
.section-cover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.section-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.cover-card {
    position: relative;
    z-index: 2;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
}

.section-content {
    padding-top: 100px;
}

/* Card Hover Effects */
.card {
    transition: all 0.3s ease;
    border: none;
    border-radius: 15px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

/* Gantt Chart Styles */
.gantt-container {
    overflow-x: auto;
    padding: 20px;
    background: #f8f9fa;
}

.gantt-chart {
    min-width: 900px;
    font-family: 'Inter', sans-serif;
}

.gantt-header {
    display: flex;
    margin-bottom: 10px;
}

.gantt-task-label {
    width: 300px;
    flex-shrink: 0;
    padding-right: 20px;
    display: flex;
    align-items: center;
}

.gantt-timeline {
    flex: 1;
    display: flex;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    overflow: hidden;
}

.gantt-week-header {
    background: #6c757d;
    color: white;
    text-align: center;
    padding: 8px 4px;
    font-weight: 600;
    font-size: 0.85rem;
    border-right: 1px solid #495057;
}

.gantt-day-header {
    background: #495057;
    color: white;
    text-align: center;
    padding: 4px 2px;
    font-size: 0.75rem;
    border-right: 1px solid #6c757d;
    min-width: 30px;
}

.gantt-row {
    display: flex;
    margin-bottom: 8px;
    align-items: center;
}

.gantt-task-info {
    width: 300px;
    flex-shrink: 0;
    padding-right: 20px;
}

.gantt-task-name {
    padding: 12px;
    border-radius: 8px 0 0 8px;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.gantt-task-description {
    font-size: 0.75rem;
    color: #6c757d;
    margin-top: 4px;
    padding-left: 12px;
}

.gantt-timeline-container {
    flex: 1;
    position: relative;
    height: 50px;
    background: #e9ecef;
    border: 1px solid #dee2e6;
    border-radius: 0 8px 8px 0;
}

.gantt-grid-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: #ced4da;
}

.gantt-task-bar {
    position: absolute;
    top: 8px;
    bottom: 8px;
    border-radius: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.75rem;
    transition: all 0.3s ease;
}

.gantt-task-bar:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

/* Task Colors */
.task-1 { background: linear-gradient(135deg, #a855f7, #8b5cf6); }
.task-2 { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.task-3 { background: linear-gradient(135deg, #f59e0b, #d97706); }
.task-4 { background: linear-gradient(135deg, #ec4899, #db2777); }
.task-5 { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.task-6 { background: linear-gradient(135deg, #ef4444, #dc2626); }

/* Legend Styles */
.gantt-legend {
    margin-top: 30px;
    padding: 20px;
    background: white;
    border-radius: 10px;
    border: 1px solid #dee2e6;
}

.legend-item {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    margin-right: 10px;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.8s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .section-content {
        padding-top: 80px;
    }
    
    .display-3 {
        font-size: 2.5rem;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .display-6 {
        font-size: 1.5rem;
    }
    
    .gantt-task-label,
    .gantt-task-info {
        width: 250px;
    }
    
    .gantt-container {
        padding: 10px;
    }
}

@media (max-width: 576px) {
    .gantt-task-label,
    .gantt-task-info {
        width: 200px;
    }
    
    .gantt-task-name {
        padding: 8px;
        font-size: 0.8rem;
    }
    
    .gantt-task-description {
        font-size: 0.7rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .btn,
    .alert {
        display: none !important;
    }
    
    .section-content {
        padding-top: 0 !important;
    }
    
    .card {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #dee2e6 !important;
    }
    
    .section-cover {
        background: white !important;
        color: black !important;
    }
    
    .cover-card {
        background: white !important;
    }
    
    .gantt-container {
        overflow: visible;
    }
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-soft {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08) !important;
}

.border-radius-lg {
    border-radius: 15px !important;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--info-color)) !important;
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--success-color), #20c997) !important;
}

.bg-gradient-warning {
    background: linear-gradient(135deg, var(--warning-color), #fd7e14) !important;
}

/* Smooth Scrolling Enhancement */
html {
    scroll-behavior: smooth;
}

/* Focus States for Accessibility */
.btn:focus,
.nav-link:focus {
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
    outline: none;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}