/* ═══════════════════════════════════════════════════════
   VentaFácil — POS Module Styles
   ═══════════════════════════════════════════════════════ */

.pos-container {
    display: flex;
    height: calc(100vh - 48px);
    gap: 16px;
    animation: fadeIn 0.3s ease;
}

.pos-tabs {
    display: none;
}

/* Left Panel — Products */
.pos-products {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.pos-search {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
}

.pos-search-input {
    flex: 1;
    position: relative;
}
.pos-search-input svg {
    position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
    width: 18px; height: 18px; color: var(--text-muted);
}
.pos-search-input input {
    padding: 12px 14px 12px 44px;
    font-size: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.pos-search-input input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Category pills */
.pos-categories {
    display: flex;
    gap: 6px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.cat-pill {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font);
    white-space: nowrap;
}
.cat-pill:hover { border-color: var(--accent); color: var(--accent); }
.cat-pill.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    box-shadow: 0 0 12px var(--accent-glow);
}

/* Products grid */
.pos-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(145px, 1fr));
    gap: 10px;
    overflow-y: auto;
    padding: 2px;
    align-content: start;
}

.pos-product-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 12px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.pos-product-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(99,102,241,0.15);
}
.pos-product-card:active { transform: scale(0.97); }

.pos-product-card .product-emoji {
    font-size: 2rem;
    margin-bottom: 8px;
    display: block;
}
.pos-product-card .product-name {
    font-weight: 600;
    font-size: 0.8rem;
    margin-bottom: 6px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.pos-product-card .product-price {
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--accent-hover);
}
.pos-product-card .product-stock {
    font-size: 0.68rem;
    color: var(--text-muted);
    margin-top: 4px;
}
.pos-product-card .low-stock {
    color: var(--danger);
}
.pos-product-card .cat-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* Right Panel — Cart */
.pos-cart {
    width: 360px;
    min-width: 360px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.pos-cart-header {
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.pos-cart-header h3 { display: flex; align-items: center; gap: 8px; font-size: 1rem; }
.pos-cart-header h3 svg { color: var(--accent); }
.cart-count {
    background: var(--accent);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 12px;
}

.pos-cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.cart-item {
    display: flex;
    align-items: center;
    padding: 10px 18px;
    gap: 12px;
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
}
.cart-item:hover { background: var(--accent-subtle); }

.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name { font-weight: 600; font-size: 0.82rem; line-height: 1.3; }
.cart-item-price { font-size: 0.75rem; color: var(--text-muted); }

.cart-item-qty {
    display: flex;
    align-items: center;
    gap: 4px;
}
.cart-item-qty button {
    width: 26px; height: 26px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.9rem;
    transition: var(--transition);
    font-family: var(--font);
}
.cart-item-qty button:hover { border-color: var(--accent); color: var(--accent); }
.cart-item-qty span { min-width: 28px; text-align: center; font-weight: 700; font-size: 0.85rem; }

.cart-item-total { font-weight: 700; font-size: 0.9rem; min-width: 60px; text-align: right; }

.cart-item-remove {
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    background: none; border: none;
    display: flex; padding: 4px;
}
.cart-item-remove:hover { color: var(--danger); }
.cart-item-remove svg { width: 14px; height: 14px; }

/* Cart footer */
.pos-cart-footer {
    border-top: 1px solid var(--border);
    padding: 16px 18px;
}

.cart-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    font-size: 0.88rem;
}
.cart-summary-row.total {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent-hover);
    padding: 10px 0 4px;
    border-top: 1px solid var(--border);
    margin-top: 6px;
}

.cart-payment {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.payment-methods {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}
.payment-method-btn {
    padding: 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font);
    font-weight: 500;
    font-size: 0.78rem;
    transition: var(--transition);
    display: flex; align-items: center; justify-content: center; gap: 6px;
}
.payment-method-btn:hover { border-color: var(--accent); }
.payment-method-btn.active {
    background: var(--accent-subtle);
    border-color: var(--accent);
    color: var(--accent-hover);
}
.payment-method-btn svg { width: 14px; height: 14px; }

.btn-charge {
    padding: 14px;
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    border: none;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 4px;
}
.btn-charge:hover {
    box-shadow: 0 0 24px var(--accent-glow);
    transform: translateY(-1px);
}
.btn-charge:active { transform: scale(0.98); }
.btn-charge:disabled { opacity: 0.5; cursor: default; transform: none; box-shadow: none; }
.btn-charge svg { width: 20px; height: 20px; }

/* Cash change row */
.cash-input-row {
    display: flex;
    gap: 8px;
    align-items: center;
}
.cash-input-row input {
    flex: 1;
    padding: 8px 12px;
    font-size: 1rem;
    font-weight: 600;
    text-align: right;
}
.change-display {
    font-weight: 700;
    color: var(--success);
    font-size: 1.1rem;
    text-align: center;
    padding: 6px 0;
}

/* Cart empty */
.cart-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    padding: 40px;
}
.cart-empty svg { width: 40px; height: 40px; opacity: 0.2; margin-bottom: 12px; }
.cart-empty p { font-size: 0.85rem; }

/* ─── Responsive Media Queries ──────────────── */
@media (max-width: 992px) {
    /* Hide sidebar and make it slide in */
    .sidebar {
        position: fixed;
        top: 0; left: 0; bottom: 0;
        transform: translateX(-100%);
        z-index: 100;
        box-shadow: var(--shadow-lg);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    
    .mobile-header {
        display: flex !important;
    }

    /* POS Mobile Tabs */
    .pos-tabs {
        display: flex !important;
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
        flex-shrink: 0 !important;
        min-height: 48px !important;
    }
    .pos-tab-btn {
        flex: 1;
        padding: 12px;
        background: transparent;
        border: none;
        color: var(--text-secondary);
        font-family: var(--font);
        font-weight: 600;
        font-size: 0.88rem;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        transition: var(--transition);
        border-bottom: 2px solid transparent;
    }
    .pos-tab-btn.active {
        color: var(--accent-hover);
        border-bottom-color: var(--accent);
        background: var(--accent-subtle);
    }
    
    .pos-container {
        flex-direction: column;
        height: calc(100vh - 120px) !important;
        gap: 10px;
        overflow: hidden;
    }
    
    .pos-products {
        display: flex;
        flex-direction: column;
        flex: 1;
        min-height: 0;
    }

    .pos-categories {
        flex-wrap: nowrap !important;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 6px;
        margin-bottom: 10px;
    }

    .pos-categories::-webkit-scrollbar {
        display: none;
    }

    .cat-pill {
        flex-shrink: 0;
    }
    
    .pos-cart {
        display: none;
        width: 100% !important;
        min-width: 0 !important;
        border-left: none;
        height: 100%;
        flex-direction: column;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch;
    }

    .pos-cart-items {
        flex: none !important;
        overflow-y: visible !important;
    }
    
    /* Active tab switching */
    .pos-container.show-cart .pos-products {
        display: none;
    }
    .pos-container.show-cart .pos-cart {
        display: flex;
    }
}