/* Modern CSS for SBATS */

:root {
    --primary-color: #172b4a;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #212529;
    --light-color: #f8f9fa;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: #f4f6f9;
    padding-top: 60px;
    background-image: url(../img/bg.jpg);
    
}
.card-header{
    background-color: red !important;
}

/* Navigation */
.navbar {
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,.08);
    z-index: 1030;
}

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

/* Sidebar */
.sidebar {
    width: 260px;
    height: calc(100vh - 60px);
    position: fixed;
    top: 60px;
    left: 0;
    background: linear-gradient(180deg, #1a1f2b 0%, #2c3e50 100%);
    overflow-y: auto;
    transition: all 0.3s;
    z-index: 1020;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}

.sidebar .nav-link {
    color: #a0aec0;
    padding: 0.875rem 1.5rem;
    border-radius: 8px;
    margin: 0.25rem 0.5rem;
    transition: all 0.3s;
}

.sidebar .nav-link:hover {
    color: white;
    background: rgba(255,255,255,0.1);
}

.sidebar .nav-link.active {
    color: white;
    background: var(--primary-color);
    box-shadow: 0 4px 6px rgba(13, 110, 253, 0.3);
}

.sidebar .nav-link i {
    width: 24px;
    font-size: 1.1rem;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 30px;
    transition: all 0.3s;
    min-height: calc(100vh - 60px);
    background: #f4f6f9;
}

/* Cards */
.stat-card {
    border: none;
    border-radius: 15px;
    transition: transform 0.3s, box-shadow 0.3s;
    overflow: hidden;
}

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

.stat-card .card-body {
    padding: 1.5rem;
}

.stat-card i {
    opacity: 0.2;
    transition: opacity 0.3s;
}

.stat-card:hover i {
    opacity: 0.3;
}

/* Cards */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}

.card-header {
    background: white;
    border-bottom: 1px solid #e9ecef;
    padding: 1rem 1.5rem;
    font-weight: 600;
    border-radius: 15px 15px 0 0 !important;
}

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

.table th {
    border-top: none;
    font-weight: 600;
    color: var(--secondary-color);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.table td {
    vertical-align: middle;
    padding: 1rem 0.75rem;
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0b5ed7 100%);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(13, 110, 253, 0.4);
}

/* Badges */
.badge {
    padding: 0.5em 0.8em;
    font-weight: 500;
    border-radius: 6px;
}

/* Forms */
.form-control, .form-select {
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    transition: all 0.3s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.25);
}

/* Alerts */
.alert {
    border: none;
    border-radius: 12px;
    padding: 1rem 1.5rem;
}

/* Timeline */
.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e9ecef;
}

.timeline-item {
    position: relative;
    padding-left: 50px;
    margin-bottom: 25px;
}

.timeline-badge {
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 1;
}

.timeline-content {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        margin-left: -260px;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar.active {
        margin-left: 0;
    }
}

/* Loading Spinner */
.spinner-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* QR Code Container */
.qr-container {
    background: white;
    padding: 20px;
    border-radius: 15px;
    display: inline-block;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Blockchain Visual */
.blockchain-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(90deg, #f6f9fc 0%, #ffffff 100%);
    border-radius: 20px;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}