/**
 * Custom Stylesheet
 * Secure Authentication System
 */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-color: #f8f9fa;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* Navbar Customization */
.navbar-brand img {
    max-height: 40px;
    width: auto;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.3s ease;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: #ffffff;
}

/* Card Enhancements */
.card {
    border: none;
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
}

.card.shadow,
.card.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

.card.shadow:hover,
.card.shadow-sm:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

/* Form Styling */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-control-lg {
    padding: 0.75rem 1rem;
    font-size: 1.1rem;
}

/* Button Enhancements */
.btn {
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
}

/* Alert Styling */
.alert {
    border: none;
    border-radius: 8px;
    border-left: 4px solid;
}

.alert-success {
    background-color: #d1e7dd;
    border-left-color: var(--success-color);
    color: #0a3622;
}

.alert-danger {
    background-color: #f8d7da;
    border-left-color: var(--danger-color);
    color: #58151c;
}

.alert-warning {
    background-color: #fff3cd;
    border-left-color: var(--warning-color);
    color: #664d03;
}

.alert-info {
    background-color: #cff4fc;
    border-left-color: var(--info-color);
    color: #055160;
}

/* Table Styling */
.table {
    background-color: white;
}

.table thead th {
    border-bottom: 2px solid var(--dark-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table-hover tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.05);
    cursor: pointer;
}

/* Badge Styling */
.badge {
    padding: 0.4em 0.8em;
    font-weight: 500;
    border-radius: 4px;
}

/* Footer */
footer {
    background-color: var(--dark-color);
    border-top: 3px solid var(--primary-color);
}

/* Dashboard Cards */
.card.text-white {
    border: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card.text-white .card-body {
    padding: 1.5rem;
}

.card.text-white h5 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.card.text-white .h3 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}

/* 2FA Code Input */
input#code {
    font-family: 'Courier New', monospace;
    font-weight: 600;
}

/* Loading Spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}

/* Dropdown Menu */
.dropdown-menu {
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    border-radius: 8px;
}

.dropdown-item {
    padding: 0.5rem 1.5rem;
    transition: background-color 0.2s ease;
}

.dropdown-item:hover {
    background-color: rgba(13, 110, 253, 0.1);
}

.dropdown-divider {
    border-top-color: rgba(0, 0, 0, 0.1);
}

/* Modal Styling */
.modal-content {
    border: none;
    border-radius: 10px;
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

.modal-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
}

/* Responsive Typography */
@media (max-width: 768px) {
    h1, .display-4 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .lead {
        font-size: 1rem;
    }
}

/* Feature Icons on Homepage */
.feature-icon i {
    display: inline-block;
    transition: transform 0.3s ease;
}

.card:hover .feature-icon i {
    transform: scale(1.1);
}

/* Code Blocks */
code {
    background-color: #f8f9fa;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
    color: #d63384;
}

/* Tab Content */
.tab-content {
    background-color: white;
    border-radius: 0 0 8px 8px;
}

.nav-tabs .nav-link {
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--secondary-color);
    font-weight: 500;
}

.nav-tabs .nav-link:hover {
    border-bottom-color: rgba(13, 110, 253, 0.3);
    color: var(--primary-color);
}

.nav-tabs .nav-link.active {
    border-bottom-color: var(--primary-color);
    color: var(--primary-color);
    background-color: white;
}

/* Utility Classes */
.text-muted {
    color: #6c757d !important;
}

.bg-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0a58ca 100%);
}

/* Animation Classes */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

/* Print Styles */
@media print {
    .navbar,
    .btn,
    footer {
        display: none !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}