:root {
    --primary: #1a1a1a;
    --accent: #007AFF;
    --bg: #ffffff;
    --gray: #f4f4f4;
    --text: #333;
}

* { margin: 0; padding: 0; box-box: border-box; }
body { font-family: 'Inter', sans-serif; color: var(--text); line-height: 1.6; }

.container { max-width: 1200px; margin: 0 auto; padding: 2rem; }

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-links { display: flex; list-style: none; gap: 2rem; }
.nav-links a { text-decoration: none; color: var(--primary); font-weight: 500; transition: 0.3s; }
.nav-links a:hover { color: var(--accent); }

/* Hero Section */
.hero {
    height: 80vh;
    background: var(--gray);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-image: linear-gradient(rgba(0,0,0,0.1), rgba(0,0,0,0.1)), url('https://images.unsplash.com/photo-1441986300917-64674bd600d8?auto=format&fit=crop&w=1500&q=80');
    background-size: cover;
    background-position: center;
    color: white;
}

.hero h1 { font-size: 3.5rem; margin-bottom: 1rem; }
.btn {
    padding: 1rem 2rem;
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: 0.3s;
}

/* Product Grid */
.section-title { text-align: center; margin: 3rem 0; font-size: 2rem; }
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    padding: 1rem;
    border-radius: 10px;
    transition: transform 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.product-card:hover { transform: translateY(-5px); }
.product-card img { width: 100%; border-radius: 8px; margin-bottom: 1rem; }
.product-info h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.price { color: var(--accent); font-weight: bold; margin-bottom: 1rem; }

.add-btn {
    width: 100%;
    padding: 0.8rem;
    border: none;
    background: var(--primary);
    color: white;
    cursor: pointer;
    border-radius: 5px;
}
/* Footer Estilizado */
.main-footer {
    background: var(--primary);
    color: white;
    padding: 4rem 0 1rem 0;
    margin-top: 5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: 3rem;
}

.footer-logo { height: 35px; filter: brightness(0) invert(1); margin-bottom: 1rem; }
.footer-brand p { color: #ccc; font-size: 0.9rem; margin-bottom: 1.5rem; }

.footer-links h4, .footer-newsletter h4 {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links ul { list-style: none; }
.footer-links ul li { margin-bottom: 0.8rem; }
.footer-links ul li a { color: #ccc; text-decoration: none; transition: 0.3s; }
.footer-links ul li a:hover { color: var(--accent); padding-left: 5px; }

.newsletter-form { display: flex; gap: 10px; margin-top: 1rem; }
.newsletter-form input {
    padding: 0.8rem;
    border: none;
    border-radius: 4px;
    flex: 1;
}
.newsletter-form button {
    padding: 0.8rem 1.5rem;
    background: var(--accent);
    border: none;
    color: white;
    cursor: pointer;
    border-radius: 4px;
}

.footer-bottom {
    text-align: center;
    padding-top: 3rem;
    margin-top: 3rem;
    border-top: 1px solid #333;
    font-size: 0.8rem;
    color: #888;
}

@media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* Responsividade */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 2.5rem; }
}