* {
    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: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #003151 30%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.content {
    padding: 30px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.form-section, .results-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.form-section h2, .results-section h2 {
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

input, select {
    width: 100%;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

input:focus, select:focus {
    outline: none;
    border-color: #667eea;
}

button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    margin: 5px;
    transition: transform 0.2s;
}

button:hover {
    transform: translateY(-2px);
}

button.danger {
    background: linear-gradient(135deg, #003151 20%, #003181 100%);
}

button.secondary {
    background: linear-gradient(135deg, #4facfe 0%, #000 100%);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background: #667eea;
    color: white;
}

tr:hover {
    background: #f1f1f1;
}

.action-buttons {
    display: flex;
    gap: 5px;
}

.action-buttons button {
    padding: 5px 10px;
    font-size: 12px;
}

.total-cost {
    background: white;
    padding: 15px;
    border-radius: 10px;
    margin: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.price-suggestion {
    background: linear-gradient(135deg, #003151 20%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
}

.price-suggestion h3 {
    margin-bottom: 10px;
}

.price {
    font-size: 24px;
    font-weight: bold;
    margin: 10px 0;
}

.refresh-btn {
    margin-bottom: 20px;
    text-align: right;
}

footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 15px;
}

@media (max-width: 768px) {
    .content {
        grid-template-columns: 1fr;
    }
}