:root {
    --primary-color: #0f172a;
    --primary-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
    --accent-color: #fff159;
    --accent-gradient: linear-gradient(135deg, #fff159 0%, #facc15 100%);
    --whatsapp-color: #25d366;
    --text-dark: #0f172a;
    --text-muted: #64748b;
    --white: #ffffff;
    --border-color: #cbd5e1;
    --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }

body {
    background: linear-gradient(-45deg, #eef2ff, #f8fafc, #e0e7ff, #f1f5f9);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: var(--text-dark);
    padding-bottom: 80px;
    min-height: 100vh;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.logo-animated { animation: slideFromCorner 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards; }
@keyframes slideFromCorner {
    0% { opacity: 0; transform: translate(-30px, -15px) rotate(-10deg) scale(0.7); }
    100% { opacity: 1; transform: translate(0, 0) rotate(0deg) scale(1); }
}

.top-bar { background: var(--accent-gradient); color: #111; font-size: 0.72rem; font-weight: 800; text-align: center; padding: 8px 12px; }

.main-header {
    background: var(--primary-gradient);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-search-flex {
    display: flex;
    flex-grow: 1;
    max-width: 500px;
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.header-search-flex input { flex-grow: 1; border: none; padding: 10px 14px; font-size: 0.85rem; outline: none; }
.header-search-flex button { background: var(--accent-gradient); border: none; padding: 0 16px; color: #111; cursor: pointer; font-size: 0.9rem; }

.btn-icon {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--white);
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.logo-img { height: 38px; object-fit: contain; }
.cart-icon-btn { position: relative; }
.cart-count { position: absolute; top: -2px; right: -2px; background-color: #ef4444; color: #fff; font-size: 0.65rem; font-weight: 900; border-radius: 50%; padding: 2px 6px; }

.quick-cat-slider {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 12px 16px;
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(8px);
}

.quick-cat-btn {
    white-space: nowrap;
    background: var(--white);
    border: 1px solid var(--border-color);
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary-color);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 6px;
}

.menu-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(15, 23, 42, 0.6); backdrop-filter: blur(4px); display: none; z-index: 200; }
.sidebar-menu { position: fixed; top: 0; left: -320px; width: 300px; height: 100%; background: var(--white); z-index: 201; transition: var(--transition); overflow-y: auto; }
.sidebar-menu.active { left: 0; }
.sidebar-header { padding: 18px; background: var(--primary-gradient); color: var(--white); display: flex; justify-content: space-between; align-items: center; }
.close-btn { background: none; border: none; color: var(--white); font-size: 1.6rem; cursor: pointer; }

.categories-nav .nav-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 700;
    border-bottom: 1px solid #f1f5f9;
}

.catalog-container { padding: 16px; }
.catalog-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.btn-filter { padding: 8px 16px; border-radius: 20px; border: 1px solid var(--border-color); background: var(--white); font-weight: 700; cursor: pointer; font-size: 0.8rem; }

.products-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
@media(min-width: 768px) { .products-grid { grid-template-columns: repeat(4, 1fr); } }

.product-card { background: rgba(255, 255, 255, 0.95); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); position: relative; display: flex; flex-direction: column; border: 1px solid var(--border-color); transition: var(--transition); }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.product-badge-offer { position: absolute; top: 8px; left: 8px; background: var(--accent-gradient); color: #000; font-size: 0.65rem; font-weight: 900; padding: 4px 8px; border-radius: 4px; z-index: 2; }
.product-img-wrapper { position: relative; width: 100%; padding-top: 100%; background: #fff; }
.product-img-wrapper img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }

.price-badge-circle { position: absolute; bottom: -10px; right: 10px; width: 54px; height: 54px; border-radius: 50%; background: var(--accent-gradient); border: 2px solid var(--white); display: flex; flex-direction: column; align-items: center; justify-content: center; font-weight: 900; z-index: 3; color: #111; }
.price-badge-circle span { font-size: 0.5rem; }
.price-badge-circle strong { font-size: 0.8rem; }

.product-info { padding: 16px 10px 10px 10px; display: flex; flex-direction: column; flex-grow: 1; justify-content: space-between; }
.product-title { font-size: 0.8rem; height: 38px; overflow: hidden; margin-bottom: 6px; font-weight: 700; color: var(--text-dark); }
.btn-add-cart { width: 100%; padding: 8px; background: var(--primary-gradient); color: var(--white); border: none; border-radius: 6px; font-weight: 800; font-size: 0.75rem; cursor: pointer; }

/* MODAL FLOTANTE */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.7); backdrop-filter: blur(6px);
    display: none; justify-content: center; align-items: center; z-index: 300; padding: 16px;
}
.modal-overlay.active { display: flex; }

.cart-modal-container {
    background: var(--white); width: 100%; max-width: 650px; max-height: 90vh;
    border-radius: 16px; box-shadow: 0 20px 40px rgba(0,0,0,0.25);
    display: flex; flex-direction: column; overflow: hidden; animation: modalSlideUp 0.3s ease-out;
}
@keyframes modalSlideUp { from { transform: translateY(30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.cart-modal-header { background: var(--primary-gradient); color: var(--white); padding: 16px 20px; display: flex; justify-content: space-between; align-items: center; }
.cart-modal-header h2 { font-size: 1.1rem; }
.close-modal-btn { background: none; border: none; color: #fff; font-size: 1.8rem; cursor: pointer; }

.cart-modal-body { padding: 20px; overflow-y: auto; display: flex; flex-direction: column; gap: 20px; }
.cart-modal-item { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border-color); }
.cart-item-title { font-size: 0.85rem; font-weight: 700; margin-bottom: 4px; }
.cart-item-price { font-size: 0.8rem; color: var(--text-muted); }

.qty-controls { display: flex; align-items: center; gap: 8px; background: #f1f5f9; padding: 4px 8px; border-radius: 6px; }
.btn-qty { background: var(--primary-color); color: #fff; border: none; width: 24px; height: 24px; border-radius: 4px; font-weight: bold; cursor: pointer; }

.checkout-form-section { background: #f8fafc; border: 1px solid var(--border-color); padding: 16px; border-radius: 12px; }
.checkout-form-section h3 { font-size: 0.9rem; margin-bottom: 12px; color: var(--primary-color); display: flex; align-items: center; gap: 8px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
@media(max-width: 500px) { .form-row { grid-template-columns: 1fr; } }
.form-row input { width: 100%; padding: 10px; border: 1px solid var(--border-color); border-radius: 8px; font-size: 0.85rem; }

.courier-selection-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 8px; }
.btn-courier {
    padding: 10px; border: 2px solid var(--border-color); background: var(--white); border-radius: 8px;
    font-weight: 800; font-size: 0.8rem; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 4px; transition: var(--transition);
}
.btn-courier.active { border-color: #3b82f6; background: #eff6ff; color: #1d4ed8; }

.agency-status-box { margin-top: 12px; background: #e0e7ff; border-left: 4px solid #3b82f6; padding: 10px; border-radius: 6px; font-size: 0.8rem; }
.maps-btn { display: inline-block; margin-top: 6px; color: #1d4ed8; font-weight: 800; text-decoration: none; }

.cart-modal-footer { padding: 16px 20px; background: #f8fafc; border-top: 1px solid var(--border-color); display: flex; flex-direction: column; gap: 10px; }
.modal-total-box { display: flex; justify-content: space-between; font-size: 1.1rem; font-weight: 900; }

.btn-checkout-whatsapp {
    width: 100%; padding: 14px; background: var(--whatsapp-color); color: var(--white); border: none; border-radius: 10px;
    font-weight: 800; font-size: 0.95rem; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 10px;
}
.whatsapp-float { position: fixed; bottom: 20px; right: 20px; background: var(--whatsapp-color); color: var(--white); width: 54px; height: 54px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; z-index: 99; text-decoration: none; box-shadow: 0 4px 12px rgba(37,211,102,0.4); }