/* VCE Specialist Mathematics - Basic Site Styles */

body {
    font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Basic typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: #1b5e20;
    margin-bottom: 1rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

/* Links */
a {
    color: #1b5e20;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #0a3d10;
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #1b5e20 0%, #2e7d32 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0a3d10 0%, #1b5e20 100%);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(27, 94, 32, 0.3);
}

.btn-secondary {
    background: #e0e0e0;
    color: #333;
}

.btn-secondary:hover {
    background: #d0d0d0;
    color: #333;
    text-decoration: none;
}

.btn-success {
    background: #2e7d32;
    color: white;
}

.btn-success:hover {
    background: #1b5e20;
    color: white;
    text-decoration: none;
}

/* Forms */
.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background: #fff;
    border: 1px solid #ced4da;
    border-radius: 0.375rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    color: #495057;
    background: #fff;
    border-color: #2e7d32;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(46, 125, 50, 0.25);
}

/* Cards */
.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.card-header {
    background: #f8f9fa;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #dee2e6;
    font-weight: 600;
    color: #1b5e20;
}

.card-body {
    padding: 1.5rem;
}

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

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

/* Navigation */
.nav {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-link {
    display: block;
    padding: 0.5rem 1rem;
    color: #1b5e20;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #0a3d10;
    text-decoration: none;
}

.nav-link.active {
    color: #2e7d32;
    font-weight: 600;
}

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

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid #dee2e6;
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid #dee2e6;
    background: #f8f9fa;
    color: #1b5e20;
    font-weight: 600;
}

.table-striped tbody tr:nth-child(odd) {
    background: rgba(0, 0, 0, 0.02);
}

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: #1b5e20; }
.text-secondary { color: #6c757d; }
.text-success { color: #2e7d32; }
.text-danger { color: #dc3545; }
.text-warning { color: #ffc107; }
.text-info { color: #17a2b8; }

.bg-primary { background-color: #1b5e20; }
.bg-secondary { background-color: #6c757d; }
.bg-success { background-color: #2e7d32; }
.bg-light { background-color: #f8f9fa; }
.bg-white { background-color: #fff; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 3rem; }

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    h1 { font-size: 1.875rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .card-body {
        padding: 1rem;
    }

    .table {
        font-size: 0.875rem;
    }

    .table th,
    .table td {
        padding: 0.5rem;
    }
}