:root {
    --bg: #121212;
    --bg-card: #1e1e1e;
    --text: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #4d97ff;
    --header-bg: #1a1a1a;
    --border: #333;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

header {
    background-color: var(--header-bg);
    padding: 1rem 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

nav a {
    color: var(--text);
    text-decoration: none;
    margin-left: 1.5rem;
    font-size: 0.95rem;
    opacity: 0.9;
    transition: opacity 0.2s;
}

nav a:hover {
    opacity: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.hero {
    text-align: center;
    padding: 5rem 1rem 4rem;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1.2rem;
    background: linear-gradient(90deg, #4d97ff, #7abaff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2.2rem;
}

.btn {
    display: inline-block;
    background: var(--accent);
    color: #000;
    font-weight: 600;
    padding: 0.8rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(77, 151, 255, 0.3);
}

.products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 2rem 1rem 4rem;
}

.product-card {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 1.8rem;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid var(--border);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.product-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: var(--text);
}

.product-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

footer {
    text-align: center;
    padding: 2.5rem 1rem 2rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-top: 1px solid var(--border);
}