/**
 * Main Stylesheet
 * Web-Based Student Report Card Management System
 */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
}

/* Navbar */
.navbar-brand {
    font-weight: 600;
    color: var(--primary-color) !important;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

/* Sidebar */
.sidebar {
    min-height: calc(100vh - 56px);
    background-color: #fff;
    border-right: 1px solid var(--border-color);
    padding: 20px 0;
}

.sidebar .nav-link {
    color: #6c757d;
    padding: 12px 20px;
    margin: 2px 0;
    border-left: 3px solid transparent;
    transition: all 0.3s;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: var(--secondary-color);
    background-color: rgba(52, 152, 219, 0.1);
    border-left-color: var(--secondary-color);
}

.sidebar .nav-link i {
    margin-right: 10px;
    width: 20px;
}

/* Main Content */
.main-content {
    padding: 30px;
}

/* Cards */
.stat-card {
    border: none;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,.15);
}

.stat-card .card-body {
    padding: 25px;
}

.stat-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-card p {
    color: #6c757d;
    margin: 0;
    font-size: 0.9rem;
}

/* Tables */
.table-responsive {
    box-shadow: 0 2px 4px rgba(0,0,0,.08);
    border-radius: 8px;
    background: white;
}

.table thead th {
    background-color: var(--primary-color);
    color: white;
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table tbody tr {
    transition: background-color 0.2s;
}

.table tbody tr:hover {
    background-color: rgba(52, 152, 219, 0.05);
}

/* Buttons */
.btn {
    border-radius: 5px;
    padding: 8px 20px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
}

/* Forms */
.form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 8px;
}

.form-control, .form-select {
    border-radius: 5px;
    border: 1px solid var(--border-color);
    padding: 10px 15px;
}

.form-control:focus, .form-select:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

/* Page Header */
.page-header {
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.page-header h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
}

.page-header .breadcrumb {
    background: transparent;
    padding: 0;
    margin: 5px 0 0 0;
}

/* Badges */
.badge {
    padding: 6px 12px;
    font-weight: 600;
    border-radius: 20px;
}

/* Login Page */
.min-vh-100 {
    min-height: 100vh;
}

.card {
    border: none;
    border-radius: 10px;
}

/* Report Card Print Styles */
@media print {
    .no-print {
        display: none !important;
    }

    body {
        background: white;
    }

    .report-card {
        width: 210mm;
        height: 297mm;
        padding: 20mm;
        margin: 0;
        box-shadow: none;
    }

    @page {
        size: A4;
        margin: 0;
    }
}

/* Report Card */
.report-card {
    background: white;
    padding: 30px;
    margin: 20px auto;
    max-width: 210mm;
    box-shadow: 0 0 10px rgba(0,0,0,.1);
}

.report-header {
    text-align: center;
    margin-bottom: 30px;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 20px;
}

.report-header h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 10px 0;
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.report-table th,
.report-table td {
    border: 1px solid #000;
    padding: 8px;
    text-align: left;
}

.report-table th {
    background-color: #f0f0f0;
    font-weight: 700;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        min-height: auto;
    }

    .main-content {
        padding: 15px;
    }

    .stat-card h3 {
        font-size: 1.5rem;
    }
}

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

/* Alert Messages */
.alert {
    border-radius: 5px;
    border: none;
}

/* Avatar */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* Status indicators */
.status-active {
    color: var(--success-color);
}

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