/* ASOSD Event Management System - Main Styles */

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --light-bg: #f8fafc;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
}

/* Base */
html {
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: #fff;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    padding: 60px 0;
    margin-bottom: 30px;
}

.hero h1 {
    margin-bottom: 0.5rem;
}

.hero .lead {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.25rem;
}

/* Cards */
.card {
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--light-bg);
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--light-bg);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.table th,
.table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    background-color: var(--light-bg);
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr:hover {
    background-color: var(--light-bg);
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    border-radius: 0.375rem;
    border: 1px solid transparent;
}

.alert-success {
    background-color: #dcfce7;
    border-color: #86efac;
    color: #166534;
}

.alert-warning {
    background-color: #fef3c7;
    border-color: #fcd34d;
    color: #92400e;
}

.alert-danger {
    background-color: #fee2e2;
    border-color: #fca5a5;
    color: #991b1b;
}

.alert-info {
    background-color: #dbeafe;
    border-color: #93c5fd;
    color: #1e40af;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0.75rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: #fff;
    font-size: 0.875rem;
}

/* Registration Form */
.rate-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    margin-bottom: 0.75rem;
    transition: border-color 0.2s;
}

.rate-item:hover {
    border-color: var(--primary-color);
}

.rate-info h4 {
    margin-bottom: 0.25rem;
}

.rate-price {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
}

.quantity-input {
    width: 80px;
    text-align: center;
}

/* Summary */
.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.summary-total {
    font-size: 1.25rem;
    font-weight: 700;
    border-top: 2px solid var(--text-primary);
    margin-top: 0.5rem;
    padding-top: 0.75rem;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: #fff;
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Photo Upload */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 0.5rem;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary-color);
    background-color: var(--light-bg);
}

.upload-zone i {
    font-size: 3rem;
    color: var(--text-secondary);
}

/* Photo Preview Grid */
.photo-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.photo-preview-item {
    position: relative;
    border-radius: 0.375rem;
    overflow: hidden;
}

.photo-preview-item img {
    width: 100%;
    height: 120px;
    object-fit: cover;
}

.photo-preview-item .remove-btn {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    width: 24px;
    height: 24px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

/* Page Content (from Markdown) */
.page-content img {
    max-width: 100%;
    height: auto;
}

.page-content h1, 
.page-content h2, 
.page-content h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.page-content ul, 
.page-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.page-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin: 1rem 0;
    color: var(--text-secondary);
}

.page-content code {
    background-color: var(--light-bg);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-size: 0.875em;
}

.page-content pre {
    background-color: var(--light-bg);
    padding: 1rem;
    border-radius: 0.375rem;
    overflow-x: auto;
}

/* Utilities */
.text-muted { color: var(--text-secondary); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 40px 0;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .stats-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}