:root {
    --primary: #F05423;
    --primary-dark: #d63e0f;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-700: #495057;
    --gray-900: #212529;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    max-width: 100%;
    margin: 0 auto;
    padding: 16px;
    background-color: var(--gray-100);
    color: var(--gray-900);
}

h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0 0 24px 0;
    text-align: center;
}

h2 {
    font-size: 20px;
    font-weight: 500;
    color: var(--gray-700);
    margin: 16px 0;
}

/* Container for all screens */
.screen {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

/* Button and Select Styles */
select, button {
    width: 100%;
    padding: 14px 20px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s ease;
    margin: 8px 0;
}

select {
    border: 2px solid var(--gray-300);
    background-color: white;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

select:focus {
    border-color: var(--primary);
    outline: none;
}

button {
    border: none;
    background-color: var(--primary);
    color: white;
    cursor: pointer;
}

button:hover {
    background-color: var(--primary-dark);
}

/* Control buttons layout */
#controls {
    display: grid;
    gap: 8px;
    margin: 16px 0;
}

@media (min-width: 768px) {
    #controls {
        grid-template-columns: repeat(2, 1fr);
    }
}

.control-button {
    background-color: white;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.control-button:hover {
    background-color: var(--primary);
    color: white;
}

/* Scanner and Results Area */
#reader {
    width: 100%;
    max-width: 100%;
    margin: 20px 0;
    border-radius: 8px;
    overflow: hidden;
    background: var(--gray-100);
}

#result {
    margin-top: 20px;
    padding: 16px;
    border-radius: 8px;
    background: var(--gray-100);
}

/* Stock Take Info Styling */
#stockTakeInfo {
    background: var(--gray-100);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 16px;
}

#stockTakeInfo h3 {
    margin-top: 0;
    color: var(--gray-900);
    font-size: 18px;
    font-weight: 500;
}

#stockTakeInfo p {
    margin: 8px 0;
    color: var(--gray-700);
}

/* Floor Badges */
.floor-badge {
    display: inline-block;
    padding: 6px 12px;
    margin: 4px;
    background-color: var(--primary);
    color: white;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 500;
}

/* Status Messages */
.duplicate-warning {
    background-color: #fff8e6;
    border: 1px solid #ffe5b4;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
}

.duplicate-warning h3 {
    color: #856404;
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.bike-details {
    background-color: white;
    padding: 16px;
    border-radius: 8px;
    margin: 12px 0;
    border: 1px solid var(--gray-300);
}

.error-message {
    background-color: #ffeaea;
    border: 1px solid #ffd1d1;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
    color: #dc3545;
}

/* Additional Mobile Optimizations */
@media (max-width: 480px) {
    body {
        padding: 12px;
    }
    
    .screen {
        padding: 16px;
    }
    
    h1 {
        font-size: 20px;
    }
    
    button, select {
        padding: 12px 16px;
    }
}

/* Success Message Styling */
.success-message {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
    color: #155724;
}

/* Loading States */
button:disabled {
    background-color: var(--gray-300);
    cursor: not-allowed;
}

/* Focus States for Accessibility */
button:focus, select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(240, 84, 35, 0.3);
}