* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #0d1117;
    color: #f0f6fc;
    min-height: 100vh;
}

.hero {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    padding: 40px 20px;
    text-align: center;
    border-bottom: 2px solid #30363d;
}

.hero h1 {
    font-size: 2.2rem;
    color: #58a6ff;
    letter-spacing: 2px;
}

.hero p {
    color: #8b949e;
    margin-top: 8px;
}

.container {
    max-width: 1000px;
    margin: 40px auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.grid-products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.card {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 12px;
    padding: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: #58a6ff;
}

.badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #238636;
    color: white;
    font-size: 0.7rem;
    padding: 3px 8px;
    border-radius: 10px;
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.desc {
    font-size: 0.85rem;
    color: #8b949e;
    margin-bottom: 15px;
    flex-grow: 1;
}

.price {
    font-size: 1.3rem;
    font-weight: bold;
    color: #3fb950;
    margin-bottom: 15px;
}

.btn-buy {
    background-color: #238636;
    color: white;
    text-decoration: none;
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 0.9rem;
    display: inline-block;
    transition: background 0.2s;
}

.btn-buy:hover {
    background-color: #2ea043;
}

footer {
    text-align: center;
    padding: 20px;
    color: #8b949e;
    font-size: 0.8rem;
    border-top: 1px solid #30363d;
    margin-top: 40px;
}