:root {
    --black: #0a0a0a;
    --orange: #ff6600;
    --light-gray: #f9f9fb;
    --white: #ffffff;
    --dark-gray: #121212;
    --border-color: #eef0f2;
    --shadow: 0 15px 40px rgba(0,0,0,0.06);
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --radius: 16px;
    --radius-sm: 8px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light-gray);
    color: var(--black);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

header {
    background-color: var(--black);
    color: var(--white);
    padding: 1rem 2rem;
    box-shadow: 0 4px 30px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    gap: 1rem;
}

.header-left { display: flex; justify-content: flex-start; }
.header-center { display: flex; justify-content: center; }
.header-right { display: flex; justify-content: flex-end; gap: 1rem; align-items: center; }

.header .logo img {
    height: 120px;
    width: auto;
    transition: var(--transition);
}

.nav-btn {
    text-decoration: none;
    background: var(--orange);
    color: white;
    font-weight: 800;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    border: 2px solid var(--orange);
    transition: var(--transition);
    white-space: nowrap;
}

.nav-btn:hover {
    background: white;
    color: var(--orange);
    transform: translateY(-2px);
}

.btn-revele {
    background: var(--orange);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 900;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 1rem;
    letter-spacing: 1px;
    transition: var(--transition);
    box-shadow: 0 10px 20px rgba(255, 102, 0, 0.2);
    white-space: nowrap;
}

.btn-revele:hover {
    transform: scale(1.05);
    background: white;
    color: var(--orange);
}

.container {
    max-width: 1400px;
    margin: 4rem auto;
    padding: 0 2rem;
}

h1, h2, h3 {
    font-weight: 900;
    margin-bottom: 1.5rem;
    letter-spacing: -1.5px;
}

.btn {
    background-color: var(--orange);
    color: var(--white);
    padding: 1.2rem 2.5rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-weight: 800;
    transition: var(--transition);
    text-align: center;
    font-size: 1.1rem;
}

.btn:hover {
    background-color: #e65c00;
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(255, 102, 0, 0.25);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2.5rem;
}

.product-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    display: flex; flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.product-card .img-container {
    width: 100%;
    height: 300px;
    background-color: #fcfcfc;
    overflow: hidden;
}

.product-card img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-info {
    padding: 2rem;
    flex-grow: 1;
    display: flex; flex-direction: column;
}

.product-card h3 { font-size: 1.3rem; margin-bottom: 0.5rem; font-weight: 400; }
.product-card .price { font-size: 1.6rem; font-weight: 900; color: var(--orange); margin-bottom: 1.5rem; }

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background-color: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

table th, table td { padding: 1.5rem; text-align: left; border-bottom: 1px solid var(--border-color); }
table th { background-color: #fcfcfc; color: #888; font-weight: 800; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 1px; }

.card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-float:hover { transform: scale(1.1); }

/* Estilos para Botões de Categoria */
.cat-btn {
    padding: 0.8rem 2rem;
    background-color: #1a1a1a;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: 1px solid #333;
}

.cat-btn:hover {
    background-color: var(--orange);
    border-color: var(--orange);
    transform: translateY(-3px);
}

.cat-btn.active {
    background-color: var(--orange);
    border-color: var(--orange);
    box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
}

/* Responsive Adjustments */
@media (max-width: 992px) {
    .header-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }
    .header-left, .header-center, .header-right { justify-content: center; }
    .header .logo img { height: 80px; }
    .container { margin: 2rem auto; padding: 0 1.5rem; }
    h1 { font-size: 2.5rem !important; white-space: normal !important; }
}

@media (max-width: 768px) {
    .product-grid { grid-template-columns: 1fr; }
    .checkout-grid { grid-template-columns: 1fr; }
    .product-gallery { grid-template-columns: 1fr !important; }
    .product-details h1 { font-size: 2.5rem !important; }
    .admin-sidebar { width: 100%; height: auto; position: relative; padding: 2rem 0; }
    .admin-main { margin-left: 0; padding: 2rem; }
    table { display: block; overflow-x: auto; }
    .cat-btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.8rem;
    }
}

/* Admin Styles */
.admin-sidebar { width: 280px; background: var(--black); color: white; height: 100vh; position: fixed; left: 0; top: 0; padding: 3rem 0; z-index: 1001; }
.admin-sidebar .logo { padding: 0 2rem 3rem; color: var(--orange); font-weight: 900; font-size: 1.8rem; border-bottom: 1px solid #222; margin-bottom: 2rem; }
.admin-sidebar a { display: block; padding: 1.2rem 2rem; color: #888; text-decoration: none; font-weight: 700; transition: var(--transition); }
.admin-sidebar a:hover, .admin-sidebar a.active { color: var(--orange); background: #111; border-left: 5px solid var(--orange); }
.admin-main { margin-left: 280px; padding: 4rem; }

/* Progress Bar */
.progress-container { width: 100%; background: #eee; border-radius: 10px; margin: 1rem 0; display: none; overflow: hidden; }
.progress-bar { width: 0%; height: 10px; background: var(--orange); transition: width 0.3s; }