/* Queue Management System - Modern CSS Styles */

:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

.card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    margin: 20px 0;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

.header h1 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    text-align: center;
    min-width: 200px;
}

.btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.4);
}

.btn-success {
    background: var(--success-color);
}

.btn-success:hover {
    background: #229954;
}

.btn-warning {
    background: var(--warning-color);
}

.btn-warning:hover {
    background: #e67e22;
}

.btn-danger {
    background: var(--danger-color);
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-large {
    padding: 25px 40px;
    font-size: 1.2rem;
    margin: 15px;
    display: block;
    width: 100%;
    max-width: 400px;
}

.main-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-row .form-group {
    flex: 1;
}

.alert {
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-left-color: var(--success-color);
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border-left-color: var(--danger-color);
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border-left-color: var(--warning-color);
}

.queue-number {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, var(--success-color), #2ecc71);
    color: white;
    border-radius: var(--border-radius);
    margin: 30px 0;
}

.queue-number h2 {
    font-size: 3rem;
    margin-bottom: 10px;
}

.queue-number p {
    font-size: 1.2rem;
    opacity: 0.9;
}

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

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.table th {
    background: var(--light-color);
    font-weight: 600;
    color: var(--dark-color);
}

.table tr:hover {
    background: #f8f9fa;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-waiting {
    background: #fff3cd;
    color: #856404;
}

.status-serving {
    background: #cce5ff;
    color: #004085;
}

.status-completed {
    background: #d4edda;
    color: #155724;
}

.status-cancelled {
    background: #f8d7da;
    color: #721c24;
}

.navbar {
    background: var(--secondary-color);
    padding: 15px 0;
    margin-bottom: 30px;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 20px;
}

.navbar-nav a {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.navbar-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .btn-large {
        margin: 10px 0;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .navbar .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .navbar-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}