/* Custom CSS for Portfolio Application */

/* General Styles */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
}

/* Hero Section */
.hero-section {
    background: var(--primary-gradient);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::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 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: var(--light-color);
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    font-weight: 600;
}

/* Buttons */
.btn {
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--primary-gradient);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateY(-1px);
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table th {
    border-top: none;
    font-weight: 600;
    background-color: var(--light-color);
    color: var(--dark-color);
}

.table-hover tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.025);
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.375rem 0.75rem;
}

/* Forms */
.form-control:focus,
.form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--dark-color);
}

.invalid-feedback {
    font-size: 0.875rem;
}

/* Pagination */
.pagination .page-link {
    color: #667eea;
    border-color: #dee2e6;
}

.pagination .page-item.active .page-link {
    background: var(--primary-gradient);
    border-color: #667eea;
}

.pagination .page-link:hover {
    color: #5a6fd8;
    background-color: #e9ecef;
}

/* Timeline */
.timeline {
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #667eea, #764ba2);
}

.timeline .card {
    position: relative;
    margin-left: 60px;
    margin-bottom: 2rem;
}

.timeline .card::before {
    content: '';
    position: absolute;
    left: -45px;
    top: 20px;
    width: 12px;
    height: 12px;
    background: #667eea;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 3px #667eea;
}

/* Media Queries */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .timeline {
        margin-left: 0;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline .card {
        margin-left: 30px;
    }
    
    .timeline .card::before {
        left: -30px;
    }
}

/* Admin Panel Styles */
.sidebar {
    background: var(--primary-gradient);
    min-height: 100vh;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    border-radius: 0.375rem;
    margin: 0.125rem 0;
    transition: all 0.3s ease;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: white;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.main-content {
    background-color: var(--light-color);
    min-height: 100vh;
}

/* 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); }
}

/* File Upload Styles */
.file-upload-area {
    border: 2px dashed #dee2e6;
    border-radius: 0.375rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: #667eea;
    background-color: rgba(102, 126, 234, 0.05);
}

.file-upload-area.dragover {
    border-color: #667eea;
    background-color: rgba(102, 126, 234, 0.1);
}

/* Image Preview */
.image-preview {
    max-width: 200px;
    max-height: 200px;
    object-fit: cover;
    border-radius: 0.375rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

/* Video Player */
.video-player {
    width: 100%;
    max-height: 400px;
    border-radius: 0.375rem;
}

/* Search Highlight */
.search-highlight {
    background-color: #fff3cd;
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
}

/* Status Indicators */
.status-online {
    color: var(--success-color);
}

.status-offline {
    color: var(--danger-color);
}

.status-pending {
    color: var(--warning-color);
}

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

.bg-gradient-primary {
    background: var(--primary-gradient);
}

.shadow-soft {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.shadow-medium {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.border-radius-lg {
    border-radius: 0.75rem;
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #dee2e6;
    }
    
    .btn {
        display: none;
    }
}