:root {
    --color-bg: #0f1115;
    --color-surface: #171a21;
    --color-primary: #25d366;
    --color-primary-dark: #1da851;
    --color-text: #f2f3f5;
    --color-text-muted: #9aa0ab;
    --color-border: #2a2e37;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

a { color: inherit; text-decoration: none; }

.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.site-header__inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.site-header__brand {
    font-weight: 700;
    font-size: 1.2rem;
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.site-header__brand span {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--color-primary);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 1.4rem;
    cursor: pointer;
}

.site-nav {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.site-nav a {
    color: var(--color-text-muted);
    font-weight: 500;
    padding: 6px 2px;
    border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--color-text);
    border-bottom-color: var(--color-primary);
}

.site-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 30px 20px 60px;
    min-height: 60vh;
}

.hero {
    text-align: center;
    padding: 30px 10px 40px;
}

.hero h1 {
    margin-bottom: 10px;
    font-size: 1.8rem;
}

.hero p {
    color: var(--color-text-muted);
}

.hero--small {
    padding: 10px 10px 30px;
    text-align: left;
}

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

.product-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.product-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-primary);
}

.product-card__image {
    aspect-ratio: 1 / 1;
    background: #1f232c;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card__placeholder {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.product-card__body {
    padding: 12px 14px;
}

.product-card__title {
    font-size: 0.98rem;
    margin: 0 0 6px;
}

.product-card__price {
    color: var(--color-primary);
    font-weight: 700;
    margin: 0;
}

.product-detail {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 40px;
}

.product-gallery__main {
    background: #1f232c;
    border-radius: var(--radius);
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-gallery__thumbs {
    display: flex;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.product-gallery__thumb {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    opacity: 0.7;
}

.product-gallery__thumb:hover,
.product-gallery__thumb.active {
    opacity: 1;
    border-color: var(--color-primary);
}

.product-info__category a {
    color: var(--color-primary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.product-info h1 {
    margin: 8px 0;
}

.product-info__price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 0 20px;
}

.product-info__description {
    color: var(--color-text-muted);
    white-space: pre-line;
    margin-bottom: 30px;
}

.whatsapp-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
}

.whatsapp-buttons__label {
    color: var(--color-text-muted);
    margin: 0;
    font-size: 0.9rem;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-primary);
    color: #06210f;
    font-weight: 600;
    padding: 12px 20px;
    border-radius: 999px;
    transition: background 0.15s ease;
}

.btn-whatsapp:hover {
    background: var(--color-primary-dark);
}

.site-footer {
    text-align: center;
    padding: 24px;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--color-border);
}

.muted { color: var(--color-text-muted); }

@media (max-width: 720px) {
    .nav-toggle { display: block; }

    .site-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 4px;
    }

    .site-nav.open { display: flex; }

    .product-detail {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}