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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

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

header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

header p {
    font-size: 1.2em;
    opacity: 0.9;
}

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

.card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.card h2 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.5em;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #555;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-right: 10px;
    margin-top: 10px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #5568d3;
    transform: scale(1.05);
}

.btn-secondary {
    background: #48bb78;
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background: #38a169;
    transform: scale(1.05);
}

.btn-success {
    background: #10b981;
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #059669;
    transform: scale(1.05);
}

.menu-container {
    max-height: 400px;
    overflow-y: auto;
    padding: 10px;
}

.menu-item {
    background: #f7fafc;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    cursor: pointer;
    transition: all 0.3s ease;
}

.menu-item:hover {
    background: #edf2f7;
    transform: translateX(5px);
}

.menu-item h3 {
    color: #667eea;
    margin-bottom: 5px;
}

.menu-item p {
    color: #666;
    font-size: 0.9em;
}

.menu-item .price {
    font-weight: bold;
    color: #10b981;
    margin-top: 5px;
}

.cart-item {
    background: #f7fafc;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-item-info {
    flex: 1;
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.cart-item-controls button {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: none;
    background: #667eea;
    color: white;
    cursor: pointer;
    font-weight: bold;
}

.cart-item-controls button:hover {
    background: #5568d3;
}

.cart-item-controls span {
    min-width: 30px;
    text-align: center;
}

.cart-total {
    margin-top: 20px;
    padding: 15px;
    background: #edf2f7;
    border-radius: 8px;
    text-align: right;
    font-size: 1.2em;
}

.cart-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

.placeholder {
    text-align: center;
    color: #999;
    font-style: italic;
    padding: 20px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: white;
    margin: 15% auto;
    padding: 30px;
    border-radius: 12px;
    width: 80%;
    max-width: 500px;
    position: relative;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 15px;
    top: 15px;
}

.close:hover {
    color: #000;
}

.success {
    color: #10b981;
    font-weight: bold;
}

.error {
    color: #ef4444;
    font-weight: bold;
}

.loading {
    text-align: center;
    padding: 20px;
}

.loading::after {
    content: '...';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}