* {
    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;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

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

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

main {
    display: grid;
    gap: 30px;
}

.search-section, .dimensions-section, .calculation-section {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.search-section:hover, .dimensions-section:hover, .calculation-section:hover {
    transform: translateY(-5px);
}

h2 {
    color: #4a5568;
    margin-bottom: 20px;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#searchInput {
    flex: 1;
    padding: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

#searchInput:focus {
    outline: none;
    border-color: #667eea;
}

#searchBtn {
    padding: 15px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.3s ease;
}

#searchBtn:hover {
    transform: scale(1.05);
}

.search-results {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    display: none;
}

.search-result-item {
    padding: 15px;
    border-bottom: 1px solid #e2e8f0;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-result-item:hover {
    background-color: #f7fafc;
}

.search-result-item:last-child {
    border-bottom: none;
}

.dimensions-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-weight: 600;
    color: #4a5568;
}

.input-group input {
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: #667eea;
}

.calculation-result {
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder {
    color: #a0aec0;
    font-style: italic;
    text-align: center;
}

.result-card {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    width: 100%;
}

.result-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    margin: 15px 0;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.detail-item {
    background: rgba(255,255,255,0.2);
    padding: 10px;
    border-radius: 8px;
}

.detail-item strong {
    display: block;
    margin-bottom: 5px;
}

footer {
    text-align: center;
    margin-top: 40px;
    color: white;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    

    
    .search-section, .dimensions-section, .calculation-section {
        padding: 20px;
    }
    
    .dimensions-form {
        grid-template-columns: 1fr;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .details {
        grid-template-columns: 1fr;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Scrollbar Styling */
.search-results::-webkit-scrollbar {
    width: 8px;
}

.search-results::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.search-results::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

.search-results::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}