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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, sans-serif;
    background-color: #0b1120;
    color: #f1f5f9;
    line-height: 1.6;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    background-color: #111827;
    border-bottom: 1px solid #263244;
}

.logo {
    font-size: 24px;
    font-weight: bold;
}

.logo span {
    color: #38bdf8;
}

nav {
    display: flex;
    gap: 30px;
}

nav a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 15px;
}

nav a:hover {
    color: #38bdf8;
}

/* Hero */
.hero {
    text-align: center;
    padding: 110px 20px;
    background: linear-gradient(135deg, #0f172a, #172554);
}

.hero h1 {
    font-size: clamp(32px, 5vw, 52px);
    margin-bottom: 20px;
}

.hero p {
    color: #cbd5e1;
    max-width: 600px;
    margin: 0 auto 35px;
}

#searchInput {
    width: 100%;
    max-width: 550px;
    padding: 17px 22px;
    border-radius: 12px;
    border: 1px solid #334155;
    background: #1e293b;
    color: white;
    font-size: 16px;
    outline: none;
}

#searchInput:focus {
    border-color: #38bdf8;
}

/* Categories */
.categories {
    padding: 75px 8%;
}

.categories h2,
.products-section h2,
.compare-section h2 {
    font-size: 28px;
    margin-bottom: 20px;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.category-card {
    background: #1e293b;
    padding: 30px 25px;
    border: 1px solid #334155;
    border-radius: 16px;
    transition: transform 0.2s, border-color 0.2s;
}

.category-card:hover {
    transform: translateY(-5px);
    border-color: #38bdf8;
}

.category-card h3 {
    font-size: 21px;
    margin-bottom: 12px;
}

.category-card p {
    font-size: 14px;
    color: #94a3b8;
}

/* Product Catalogue */
.products-section {
    padding: 75px 8%;
}

.section-description {
    color: #94a3b8;
    margin-bottom: 30px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.product-card {
    background: #1e293b;
    padding: 25px;
    border: 1px solid #334155;
    border-radius: 16px;
    transition: border-color 0.2s;
}

.product-card:hover {
    border-color: #38bdf8;
}

.product-card h3 {
    font-size: 19px;
    margin-bottom: 20px;
    color: #f1f5f9;
}

.product-specs {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-specs p {
    font-size: 14px;
    color: #cbd5e1;
    overflow-wrap: anywhere;
}

.product-specs strong {
    color: #94a3b8;
}

/* Comparison Section */
.compare-section {
    padding: 75px 8%;
    background: #111827;
    min-height: 250px;
}

.compare-section p {
    color: #94a3b8;
}

/* Footer */
footer {
    padding: 25px;
    text-align: center;
    color: #94a3b8;
    border-top: 1px solid #263244;
    font-size: 14px;
}

/* Tablet */
@media (max-width: 900px) {
    .category-grid,
    .product-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Mobile */
@media (max-width: 600px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
    }

    nav {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding: 75px 20px;
    }

    .category-grid,
    .product-grid {
        grid-template-columns: 1fr;
    }

    .categories,
    .products-section,
    .compare-section {
        padding: 50px 6%;
    }
}