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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    color: #2c3e50;
    margin-bottom: 8px;
    font-size: 2.5rem;
}

.subtitle {
    color: #7f8c8d;
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-left: 5px solid #3498db;
}

.hidden {
    display: none;
}

.btn-primary {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 15px 0;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(52, 152, 219, 0.3);
}

.note {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-top: 10px;
    font-style: italic;
}

.status {
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
    font-weight: 500;
}

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

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

.status.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

#coordinates {
    font-family: 'Courier New', monospace;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 6px;
    margin-top: 10px;
    border: 1px solid #e9ecef;
}

.locker-item {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 15px;
    margin: 10px 0;
    transition: all 0.3s ease;
}

.locker-item.nearby {
    border-left: 5px solid #2ecc71;
    background: #f9fdf9;
}

.locker-item.far {
    border-left: 5px solid #e74c3c;
    background: #fef9f9;
    opacity: 0.7;
}

.locker-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.locker-name {
    font-weight: 600;
    color: #2c3e50;
}

.locker-distance {
    font-weight: bold;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.distance-near {
    background: #2ecc71;
    color: white;
}

.distance-far {
    background: #e74c3c;
    color: white;
}

.simulation-info {
    background: #2c3e50;
    color: white;
    padding: 20px;
    border-radius: 12px;
    margin-top: 30px;
}

.simulation-info h3 {
    color: white;
    margin-bottom: 15px;
}

.simulation-info ol {
    margin-left: 20px;
    line-height: 1.8;
}

.simulation-info li {
    margin-bottom: 8px;
}

/* Add to existing style.css */
.locker-grid {
    display: grid;
    gap: 15px;
    margin-top: 20px;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: bold;
}

.status-badge.available {
    background: #2ecc71;
    color: white;
}

.status-badge.occupied {
    background: #e74c3c;
    color: white;
}

.access-status {
    margin-top: 15px;
    padding: 10px;
    border-radius: 6px;
    font-weight: bold;
}

.access-granted {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    padding: 10px;
    border-radius: 6px;
}

.access-denied {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    padding: 10px;
    border-radius: 6px;
}

.btn-next {
    background: linear-gradient(135deg, #27ae60 0%, #219653 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 25px;
    width: 100%;
    font-weight: bold;
}

.btn-next:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(39, 174, 96, 0.3);
}

/* Update locker item for better spacing */
.locker-item {
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    padding: 20px;
    margin: 10px 0;
    transition: all 0.3s ease;
}

.locker-item.nearby {
    border-color: #2ecc71;
    box-shadow: 0 4px 12px rgba(46, 204, 113, 0.2);
}

.locker-item.far {
    border-color: #e0e0e0;
    opacity: 0.8;
}

.locker-details {
    margin: 15px 0;
}

.locker-details p {
    margin: 5px 0;
}