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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

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

.header p {
    font-size: 1.1em;
    opacity: 0.9;
}

.nav-tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 3px solid #e9ecef;
}

.nav-tab {
    flex: 1;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1em;
    transition: all 0.3s ease;
    border: none;
    background: #f8f9fa;
    color: #495057;
}

.nav-tab:hover {
    background: #e9ecef;
    color: #2c3e50;
}

.nav-tab.active {
    background: #667eea;
    color: white;
    box-shadow: 0 -3px 0 #667eea;
}

.tab-content {
    display: none;
    padding: 40px;
    animation: fadeIn 0.5s ease-in;
}

.tab-content.active {
    display: block;
}

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

.form-section {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 25px;
    border-left: 5px solid #667eea;
}

.form-section h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.4em;
    display: flex;
    align-items: center;
}

.form-section h3::before {
    content: "👤";
    margin-right: 10px;
    font-size: 1.2em;
}

.form-section:nth-child(2) h3::before { content: "🚌"; }
.form-section:nth-child(3) h3::before { content: "👨‍👩‍👧‍👦"; }
.form-section:nth-child(4) h3::before { content: "🚨"; }
.form-section:nth-child(5) h3::before { content: "📸"; }

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

label {
    font-weight: 600;
    margin-bottom: 8px;
    color: #495057;
    font-size: 0.95em;
}

input, select, textarea {
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1em;
    transition: all 0.3s ease;
    background: white;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.camera-section {
    text-align: center;
}

.camera-container {
    position: relative;
    display: inline-block;
    margin: 20px 0;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

#video {
    width: 320px;
    height: 240px;
    background: #000;
    border-radius: 15px;
}

.camera-controls {
    margin: 20px 0;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1em;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(108, 117, 125, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 117, 125, 0.6);
}

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.4);
    font-size: 1.2em;
    padding: 15px 40px;
    margin-top: 20px;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.6);
}

.captured-image {
    display: none;
    margin: 20px 0;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.passenger-list {
    display: grid;
    gap: 20px;
}

.passenger-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.passenger-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.passenger-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 2px solid #dee2e6;
}

.passenger-name {
    font-size: 1.3em;
    font-weight: 700;
    color: #2c3e50;
}

.bus-route {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
}

.passenger-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.detail-item {
    background: white;
    padding: 12px;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.detail-label {
    font-weight: 600;
    color: #6c757d;
    font-size: 0.9em;
    margin-bottom: 5px;
}

.detail-value {
    color: #2c3e50;
    font-weight: 500;
}

.search-container {
    margin-bottom: 30px;
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 250px;
}

.status-message {
    padding: 15px;
    border-radius: 10px;
    margin: 20px 0;
    font-weight: 600;
    text-align: center;
    display: none;
}

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

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

/* Checklist Styling */
.checklist-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 20px 0;
}

.checklist-category {
    background: white;
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid #28a745;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.checklist-category h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.1em;
    display: flex;
    align-items: center;
}

.checklist-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    user-select: none;
}

.checkbox-item:hover {
    background: #f8f9fa;
    transform: translateX(5px);
}

.checkbox-item input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    height: 20px;
    width: 20px;
    background-color: #eee;
    border-radius: 4px;
    margin-right: 12px;
    position: relative;
    border: 2px solid #ddd;
    transition: all 0.3s ease;
}

.checkbox-item:hover .checkmark {
    background-color: #ccc;
    border-color: #28a745;
}

.checkbox-item input[type="checkbox"]:checked ~ .checkmark {
    background-color: #28a745;
    border-color: #28a745;
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-item input[type="checkbox"]:checked ~ .checkmark:after {
    display: block;
}

.checkbox-item input[type="checkbox"]:checked ~ span:not(.checkmark) {
    color: #28a745;
    font-weight: 600;
}

@media (max-width: 768px) {
    .container {
        margin: 10px;
        border-radius: 15px;
    }
    
    .header {
        padding: 20px;
    }
    
    .header h1 {
        font-size: 2em;
    }
    
    .tab-content {
        padding: 20px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .nav-tab {
        padding: 15px 10px;
        font-size: 1em;
    }
    
    #video {
        width: 280px;
        height: 210px;
    }
    
    .search-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-input {
        min-width: auto;
    }
    
    .passenger-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .passenger-details {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9em;
    }
    
    .btn-success {
        font-size: 1em;
        padding: 12px 30px;
    }
    .color {
        color: #000;
    }
}