/* Custom styles for Time Zone Utility App */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-color: #f8f9fa;
}

/* Navigation enhancements */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.navbar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 0.375rem;
}

/* Card enhancements */
.card {
    border: none;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

.card-header {
    border-radius: 0.75rem 0.75rem 0 0 !important;
    font-weight: 600;
}

/* Feature icons */
.feature-icon {
    transition: all 0.3s ease;
}

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

/* Form enhancements */
.form-control, .form-select {
    border-radius: 0.5rem;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

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

/* Button enhancements */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    margin: 5px;
}

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

/* Table enhancements */
.table {
    border-radius: 0.75rem;
    overflow: hidden;
}

.table-striped > tbody > tr:nth-of-type(odd) > td {
    background-color: rgba(0, 0, 0, 0.02);
}

/* World clock specific styles */
.world-clock-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.clock-time {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Status badges for meeting planner */
.table-success {
    background-color: rgba(25, 135, 84, 0.1) !important;
}

.table-warning {
    background-color: rgba(255, 193, 7, 0.1) !important;
}

.table-danger {
    background-color: rgba(220, 53, 69, 0.1) !important;
}

/* Alert enhancements */
.alert {
    border-radius: 0.75rem;
    border: none;
}

/* Loading animations */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Responsive enhancements */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 1rem;
    }
}

/* Footer styles */
footer {
    background-color: var(--light-color) !important;
    border-top: 1px solid #dee2e6;
}

/* Utility classes */
.text-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-hover {
    transition: box-shadow 0.3s ease;
}

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

/* Clock grid improvements */
.clock-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

/* Participant row styling */
.participant-row {
    animation: fadeIn 0.3s ease-in;
}

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

/* Custom scrollbar for select elements */
select::-webkit-scrollbar {
    width: 8px;
}

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

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

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

#navbarNav ul li {
        margin: 0 4px;
    position: relative;
    font-weight: 500;
}

.mainLogo {
    width: 40px;
    border-radius: 25px;
}

.mainLogoText {
    font-weight: 600 !important;
}