/* Trail Vietnam Sapa - Custom Styles */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #27ae60;
    --accent-color: #f39c12;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --background-light: #ecf0f1;
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.hero-image {
    text-align: center;
    padding: 2rem;
}

/* Feature Cards */
.feature-icon {
    transition: transform 0.3s ease;
}

.card:hover .feature-icon {
    transform: translateY(-10px);
}

/* Statistics Cards */
.stat-card {
    padding: 2rem 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.stat-number {
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Chart Containers */
.chart-container {
    position: relative;
    height: 400px;
    margin: 1rem 0;
}

/* Category Badges */
.category-badge {
    display: inline-block;
}

.category-badge .badge {
    font-size: 0.75rem;
    padding: 0.5rem 0.75rem;
}

/* Experience Cards */
.experience-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.experience-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

/* Navigation */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
}

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

/* Tables */
.table {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.table thead th {
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.85rem;
}

/* Modal Styles */
.modal-content {
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.modal-header {
    border-bottom: 1px solid #eee;
    padding: 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

/* Form Styles */
.form-control, .form-select {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 0.75rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.15);
}

/* Alert Styles */
.alert {
    border: none;
    border-radius: 10px;
    padding: 1rem 1.5rem;
}

/* Loading States */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-section {
        min-height: 50vh;
        text-align: center;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
    
    .chart-container {
        height: 300px;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        border-radius: 8px !important;
        margin-bottom: 0.5rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .hero-section .btn {
        display: block;
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* Animation Classes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Chart Responsive */
.chart-responsive {
    position: relative;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.chart-responsive canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1a252f;
}

/* Print Styles */
@media print {
    .navbar, .modal, .btn, .alert {
        display: none !important;
    }
    
    .card {
        border: 1px solid #ddd !important;
        box-shadow: none !important;
    }
}