/* Modern Custom Styles */
:root {
    --primary-color: #e74c3c;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-red: #e74c3c;
}

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

/* Navbar */
.navbar-brand {
    font-size: 1.3rem;
}

.navbar-dark .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
}

/* Cards */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.card-header {
    background: linear-gradient(135deg, var(--primary-color), #0a58ca);
    color: white;
    border-radius: 15px 15px 0 0 !important;
    font-weight: 600;
}

/* Stats Cards */
.stats-card {
    border-radius: 15px;
    padding: 25px;
    color: white;
    position: relative;
    overflow: hidden;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(45deg);
}

.stats-card i {
    font-size: 3rem;
    opacity: 0.3;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.stats-card h3 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0;
}

.stats-card p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

.bg-primary-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.bg-warning-gradient {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.bg-info-gradient {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.bg-success-gradient {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.bg-danger-gradient {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.bg-purple-gradient {
    background: linear-gradient(135deg, #6f42c1, #563d7c);
}

/* Tables */
.table {
    border-radius: 10px;
    overflow: hidden;
}

.table thead th {
    background-color: #f8f9fa;
    font-weight: 600;
    border-bottom: 2px solid #dee2e6;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table tbody tr {
    transition: all 0.3s ease;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
    transform: scale(1.01);
}

/* Buttons */
.btn {
    border-radius: 8px;
    padding: 8px 20px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.btn-success {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    border: none;
}

/* Badges */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
}

/* Forms */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #dee2e6;
    padding: 10px 15px;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(46, 49, 65, 0.95), rgba(27, 30, 43, 0.95)),
                url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuIiB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiPjxjaXJjbGUgY3g9IjIiIGN5PSIyIiByPSIxLjUiIGZpbGw9IiMzNDk4ZGIiIG9wYWNpdHk9IjAuMiIvPjxjaXJjbGUgY3g9IjIyIiBjeT0iMjIiIHI9IjEuNSIgZmlsbD0iIzM0OThkYiIgb3BhY2l0eT0iMC4yIi8+PGxpbmUgeDE9IjIiIHkxPSIyIiB4Mj0iMjIiIHkyPSIyMiIgc3Ryb2tlPSIjM2U4ZTQxIiBzdHJva2Utd2lkdGg9IjAuNSIgb3BhY2l0eT0iMC4xNSIvPjwvcGF0dGVybj48L2RlZnM+PHJlY3QgZmlsbD0idXJsKCNwYXR0ZXJuKSIgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIvPjwvc3ZnPg==');
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(52, 152, 219, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: networkPulse 20s linear infinite;
}

@keyframes networkPulse {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

.login-card {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

/* Modal */
.modal-content {
    border-radius: 15px;
    border: none;
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color), #0a58ca);
    color: white;
    border-radius: 15px 15px 0 0;
}

/* Comments */
.comment-box {
    background: #f8f9fa;
    border-left: 4px solid var(--primary-color);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
}

/* Loading Animation */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .stats-card h3 {
        font-size: 2rem;
    }
    
    .stats-card i {
        font-size: 2rem;
    }
}