/**
 * myWebmail - Main Stylesheet
 * Modern, professional email management interface
 */

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

/* Global Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 0.95rem;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, #fdeff2, #e1e5f2, #f6fdfa) fixed;
}

main {
    flex: 1;
}

/* Navigation Enhancements */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
}

.nav-link {
    transition: all 0.3s ease;
}

.nav-link:hover {
    transform: translateY(-1px);
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075);
    transition: box-shadow 0.3s ease;
}

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

.card-header {
    background-color: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
}

/* Buttons */
.btn {
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.btn i {
    margin-right: 0.25rem;
}

/* Tables */
.table {
    font-size: 0.9rem;
}

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

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

/* Forms */
.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #495057;
}

.form-control, .form-select {
    border-radius: 0.375rem;
    border: 1px solid #ced4da;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

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

.input-group-text {
    background-color: #f8f9fa;
    border: 1px solid #ced4da;
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
}

/* Progress Bars */
.progress {
    border-radius: 0.375rem;
    background-color: #e9ecef;
}

.progress-bar {
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 20px;
}

/* Alerts */
.alert {
    border-radius: 0.375rem;
    border-left: 4px solid;
}

.alert-success {
    border-left-color: var(--success-color);
}

.alert-danger {
    border-left-color: var(--danger-color);
}

.alert-warning {
    border-left-color: var(--warning-color);
}

.alert-info {
    border-left-color: var(--info-color);
}

/* Footer */
.footer {
    margin-top: auto;
    background-color: #f8f9fa;
}

/* DataTables Customisation */
.dataTables_wrapper .dataTables_filter input {
    border-radius: 0.375rem;
    border: 1px solid #ced4da;
    padding: 0.375rem 0.75rem;
}

.dataTables_wrapper .dataTables_length select {
    border-radius: 0.375rem;
    border: 1px solid #ced4da;
    padding: 0.375rem 2rem 0.375rem 0.75rem;
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Loading Spinner */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Password Strength Indicator */
.password-strength {
    height: 5px;
    border-radius: 3px;
    margin-top: 0.5rem;
    background: #e9ecef;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    transition: all 0.3s ease;
}

.strength-weak { background: #dc3545; width: 33%; }
.strength-fair { background: #ffc107; width: 66%; }
.strength-good { background: #0dcaf0; width: 90%; }
.strength-strong { background: #198754; width: 100%; }

/* Responsive Utilities */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    .card-body {
        padding: 1rem;
    }

    .table {
        font-size: 0.85rem;
    }
}

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

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

/* Utility Classes */
.cursor-pointer {
    cursor: pointer;
}

.text-truncate-2 {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

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