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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f5f5f5;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

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

header h1 {
    color: #2196f3;
    margin-bottom: 20px;
    font-size: 2.5em;
}

.total-summary {
    background-color: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin-top: 20px;
    position: sticky;
    top: 20px;
    z-index: 100;
    border: 2px solid #e3f2fd;
}

.total-cost h2 {
    color: #1976d2;
    margin-bottom: 15px;
    font-size: 1.8em;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 30px;
}

.product-card {
    background-color: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-color: #bbdefb;
}

.product-card h3 {
    color: #1976d2;
    margin-bottom: 20px;
    font-size: 1.4em;
    border-bottom: 2px solid #e3f2fd;
    padding-bottom: 10px;
}

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

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
    font-size: 0.95em;
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1em;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
}

.input-group input:focus {
    outline: none;
    border-color: #2196f3;
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
    background-color: white;
}

.input-group input:hover {
    background-color: white;
    border-color: #90caf9;
}

.free-tier-note {
    font-size: 0.85em;
    color: #666;
    margin-top: 6px;
    padding-left: 5px;
    border-left: 2px solid #90caf9;
}

.card-summary {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e3f2fd;
}

.plan-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.9em;
    margin-bottom: 10px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.plan-badge.free {
    background-color: #e3f2fd;
    color: #1976d2;
}

.plan-badge.paid {
    background-color: #fce4ec;
    color: #c2185b;
}

.price {
    font-weight: bold;
    color: #333;
    font-size: 1.1em;
    padding: 10px 0;
}

.plan-note {
    font-size: 0.9em;
    color: #666;
    margin-top: 8px;
    font-style: italic;
}

.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: "Calculating...";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255,255,255,0.9);
    padding: 10px;
    border-radius: 4px;
}

.input-error {
    border-color: #f44336 !important;
}

.error-message {
    color: #f44336;
    font-size: 0.85em;
    margin-top: 5px;
}

@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .product-card {
        padding: 20px;
    }
    
    header h1 {
        font-size: 2em;
    }
    
    .total-cost h2 {
        font-size: 1.5em;
    }
}

@media print {
    body {
        background: white;
    }
    
    .product-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .total-summary {
        position: static;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.product-card {
    animation: fadeIn 0.3s ease-out;
}

/* Sticky Header */
.total-summary {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: white;
    margin-bottom: 20px;
    border-bottom: 1px solid #e3f2fd;
}

/* Navigation Styles */
.category-nav {
    position: sticky;
    top: 100px; /* Adjust based on total-summary height */
    z-index: 999;
    background: white;
    padding: 15px 0;
    margin: 20px 0;
    display: flex;
    justify-content: center;
    gap: 15px;
    border-bottom: 1px solid #e3f2fd;
}

.category-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    background: #f5f5f5;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.category-btn:hover {
    background: #e3f2fd;
    color: #1976d2;
}

.category-btn.active {
    background: #2196f3;
    color: white;
}

/* Section Styles */
.category-section {
    margin-bottom: 40px;
    scroll-margin-top: 200px; /* Ensures proper scroll position accounting for sticky header */
}

.category-section h2 {
    color: #1976d2;
    margin-bottom: 20px;
    font-size: 1.8em;
    padding-bottom: 10px;
    border-bottom: 2px solid #e3f2fd;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .category-nav {
        flex-wrap: wrap;
        top: 80px;
    }
    
    .category-btn {
        flex: 1 1 calc(50% - 10px);
        text-align: center;
    }
}

/* Sticky Header Container */
.sticky-header {
    position: sticky;
    top: 0;
    background-color: #f5f5f5;
    z-index: 1000;
    padding: 20px 0;
    margin-bottom: 30px;
    border-bottom: 1px solid #e3f2fd;
}

/* Total Summary Panel */
.total-summary {
    background-color: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    border: 2px solid #e3f2fd;
}

/* Navigation Styles */
.category-nav {
    display: flex;
    justify-content: center;
    gap: 15px;
    padding: 15px 0;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* Adjust main content to account for sticky header */
main {
    padding-top: 20px;
}

/* Category section adjustment */
.category-section {
    scroll-margin-top: 250px; /* Adjust this value based on your header height */
}

// Add this CSS
const tooltipStyles = document.createElement('style');
tooltipStyles.textContent = `
    .product-tooltip {
        position: relative;
        cursor: help;
    }

    .product-tooltip .tooltip-content {
        visibility: hidden;
        position: absolute;
        z-index: 1000;
        width: 300px;
        background: white;
        border: 1px solid #e3f2fd;
        border-radius: 8px;
        padding: 15px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        opacity: 0;
        transition: opacity 0.3s, transform 0.3s;
        transform: translateY(10px);
        left: -10px;
        top: 100%;
        margin-top: 10px;
        pointer-events: none;
    }

    .product-tooltip:hover .tooltip-content {
        visibility: visible;
        opacity: 1;
        transform: translateY(0);
    }

    .tooltip-content::before {
        content: '';
        position: absolute;
        top: -6px;
        left: 20px;
        width: 12px;
        height: 12px;
        background: white;
        transform: rotate(45deg);
        border-left: 1px solid #e3f2fd;
        border-top: 1px solid #e3f2fd;
    }

    .tooltip-title {
        font-weight: bold;
        color: #1976d2;
        margin-bottom: 8px;
        font-size: 1.1em;
    }

    .tooltip-description {
        margin-bottom: 8px;
        color: #333;
    }

    .tooltip-pricing {
        margin-bottom: 8px;
        color: #666;
        font-size: 0.9em;
        white-space: pre-line;
    }

    .tooltip-usecase {
        color: #2196f3;
        font-style: italic;
        font-size: 0.9em;
    }
`;
document.head.appendChild(tooltipStyles);