
        /* --- Style CSS --- */
         * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Helvetica Neue', sans-serif; background-color: #f5f5f5; }
        .container { width: 100%; max-width: 1925px; margin: 0 auto; background-color: white; }
        .logo-banner { width: 100%; height: 20vh; background-color: rgba(255, 255, 255, 0.8); display: flex; align-items: center; justify-content: center; }
        .logo-banner img { max-width: 90%; height: auto; max-height: 18vh; }
        .menu {
            width: 100%;
            height: 6vh;
            min-height: 50px;
            background-color: white;
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.1);
            padding: 0 20px;
        }
        .nav {
            display: flex;
            align-items: center;
            width: 100%;
        }
        .nav-links {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-grow: 1;
            gap: 2vw;
        }
        .nav a { /* Styl dla linków tekstowych w nawigacji */
            color: black;
            text-decoration: none;
            font-size: 1.4rem;
            transition: color 0.3s ease;
        }
        .nav a:hover { color: #555; }
         /* Kontener ikony koszyka */
        .cart-icon-container {
            margin-left: auto;
            position: relative;
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }
        /* Link wokół ikony koszyka */
        .cart-icon-container a {
             /* font-size: 1.8rem; Usunięto - rozmiar kontroluje obrazek */
             text-decoration: none;
             color: #333;
             padding: 5px;
             display: flex; /* Aby wyrównać obrazek i licznik */
             align-items: center;
             gap: 5px; /* Mały odstęp między ikoną a licznikiem */
        }
        .cart-icon-container a:hover { color: #007bff; }

        /* Styl obrazka ikony koszyka */
        .cart-icon-container img.cart-icon-img {
            height: 40px;
            width: auto;
            vertical-align: middle;
            display: block;
        }

        /* Licznik przedmiotów */
        .cart-item-count {
            position: absolute;
            top: -5px;
            right: -8px;
            background-color: red;
            color: white;
            border-radius: 50%;
            padding: 2px 6px;
            font-size: 0.7rem;
            font-weight: bold;
            line-height: 1;
            min-width: 18px;
            text-align: center;
            display: none;
        }
        .cart-item-count.visible { display: block; }

        /* Mini-koszyk */
        .mini-cart-dropdown { display: none; position: absolute; top: 100%; right: 0; min-width: 300px; max-height: 400px; overflow-y: auto; background-color: white; border: 1px solid #ddd; box-shadow: 0 4px 8px rgba(0,0,0,0.1); border-radius: 5px; padding: 15px; z-index: 1001; }
        .cart-icon-container:hover .mini-cart-dropdown { display: block; }
        .mini-cart-dropdown ul { list-style: none; margin: 0; padding: 0; margin-bottom: 15px; }
        .mini-cart-dropdown li { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px dashed #eee; font-size: 0.9rem; }
        .mini-cart-dropdown li:last-child { border-bottom: none; }
        .mini-cart-dropdown .item-name { flex-grow: 1; margin-right: 10px; }
        .mini-cart-dropdown .item-qty { font-weight: bold; margin-right: 10px;}
        .mini-cart-dropdown .item-price { white-space: nowrap; font-weight: bold; }
        .mini-cart-total { border-top: 1px solid #ccc; padding-top: 10px; text-align: right; font-weight: bold; font-size: 1rem; }
        .mini-cart-empty { text-align: center; color: #777; }

        /* Reszta stylów bez zmian */
        .footer { width: 100%; background-color: #fff; padding: 20px; display: flex; align-items: center; justify-content: space-between; box-shadow: 0px -2px 5px rgba(0, 0, 0, 0.1); margin-top: 30px; flex-wrap: wrap; gap: 15px;}
        .footer-logo img { height: 45px; }
        .footer-info { text-align: center; font-size: 0.6rem; color: #555; }
        .footer-info p { margin: 2px 0; }
        .footer-social a img { height: 40px; margin-left: 10px; }
        .calculator-wrapper { margin: 30px auto; padding: 30px; background-color: #fff; box-shadow: 0 0 15px rgba(0,0,0,0.08); border-radius: 8px; max-width: 1600px; }
        .top-section { display: grid; grid-template-columns: 3fr 2fr 2fr 2fr; gap: 30px; margin-bottom: 40px; }
        .products-column, .personal-details-column, .billing-address-column, .shipping-address-column { padding: 15px; }
        .products-column h2, .personal-details-column h2, .billing-address-column h2, .shipping-address-column h2, #wycena-container h2, #podsumowanie-container h2, .komentarz-sekcja h2 { margin-bottom: 20px; }
        label { display: block; margin-bottom: 8px; font-weight: bold; font-size: 0.9em; color: #333; }
        input[type="text"], input[type="email"], input[type="tel"], select, textarea { width: 100%; max-width: 360px; padding: 10px; margin-bottom: 18px; box-sizing: border-box; border: 1px solid #ccc; border-radius: 4px; font-size: 1em; transition: background-color 0.2s ease, border-color 0.2s ease; }
        input[type="number"] { width: 100%; max-width: 360px; padding: 10px; margin-bottom: 18px; box-sizing: border-box; border: 1px solid #ccc; border-radius: 4px; font-size: 1em; }
        #odpowiedz-matematyczna { width: 80px; max-width: none; padding: 8px; vertical-align: middle; margin-right: 10px; margin-bottom: 0; font-size: 1em; height: auto; }
        input[type="checkbox"] { margin-right: 5px; vertical-align: middle; }
        button { padding: 10px 18px; cursor: pointer; margin-top: 10px; margin-right: 10px; vertical-align: middle; background-color: black; color: white; border: none; border-radius: 5px; transition: background-color 0.3s; font-size: 0.9em; }
        button:hover:not(:disabled) { background-color: #333; }
        button:disabled { cursor: not-allowed; background-color: #ccc; color: #666; border-color: #ddd; }
        button.wysylanie { cursor: wait; background-color: #aaa; }
        table { width: 100%; border-collapse: collapse; margin-top: 10px; }
        th, td { border: 1px solid #ddd; padding: 12px; text-align: left; vertical-align: top; }
        th { background-color: #f7f7f7; font-weight: 600; }
        .product-input { display: flex; align-items: center; margin-bottom: 12px; padding: 0; }
        .product-input input[type="number"] { width: 60px; max-width: none; margin-right: 10px; padding: 4px 6px; font-size: inherit; line-height: normal; height: auto; margin-bottom: 0; border: 1px solid #ccc; border-radius: 4px; }
        .product-input label { margin-right: 15px; display: inline-block; margin-bottom: 0; font-weight: normal; font-size: 1em; color: initial; }
        input:disabled, select:disabled, textarea:disabled { background-color: #f0f0f0 !important; color: #999 !important; cursor: not-allowed !important; border-color: #ddd !important; opacity: 0.7; }
        .dolna-sekcja { display: flex; gap: 40px; margin-top: 40px; align-items: flex-start; flex-wrap: wrap; }
        .kolumna-podsumowania, .komentarz-sekcja { flex: 1; min-width: 250px; }
        .komentarz-sekcja textarea { min-height: 80px; resize: vertical; }
        #licznik-znakow { display: block; text-align: right; font-size: 0.85em; color: #666; margin-top: 5px; }
        #wycena-container { margin-top: 30px; margin-bottom: 30px; }
        #sekcja-wyslij { display: flex; align-items: center; flex-wrap: wrap; gap: 15px 25px; margin-top: 30px; border-top: 1px solid #eee; padding-top: 25px; }
        #sekcja-wyslij label, #sekcja-wyslij span { display: inline; margin-bottom: 0; margin-right: 5px; font-weight: normal; }
        #licznik-sesji { margin-left: auto; align-self: center; padding: 2px 6px; font-size: 0.75em; background-color: #f0f0f0; border: 1px solid #ccc; border-radius: 3px; color: #333; white-space: nowrap; }
        #licznik-sesji.wygasla { color: red; font-weight: bold; background-color: #fee; border-color: red; }
        #paczkomat-info { margin-top: -5px; margin-bottom: 10px; }

        /* Media Queries */
        @media (max-width: 1200px) {
             .top-section { grid-template-columns: 1fr 1fr; gap: 25px; }
             .products-column { grid-area: 1 / 1 / 2 / 2; }
             .personal-details-column { grid-area: 1 / 2 / 2 / 3; }
             .billing-address-column { grid-area: 2 / 1 / 3 / 2; }
             .shipping-address-column { grid-area: 2 / 2 / 3 / 3; }
         }
        @media (max-width: 768px) {
            .logo-banner { height: 15vh; }
            .menu { height: auto; min-height: 50px; }
            .nav { flex-wrap: wrap; justify-content: center; gap: 15px; }
            .nav-links { flex-grow: 0; width: 100%; justify-content: center; order: 1; gap: 15px; }
            .nav a { font-size: 1.2rem; }
            .cart-icon-container { order: 0; width: 100%; justify-content: flex-end; margin-left: 0; margin-bottom: 10px; }
            .cart-icon-container img.cart-icon-img { height: 35px; }
            .mini-cart-dropdown { min-width: 250px; }
            .footer { flex-direction: column; gap: 15px; }
            .footer-info { font-size: 0.5rem; order: 1; }
            .footer-logo img { height: 38px; order: 2; }
            .footer-social { order: 3; }
            .footer-social a img { height: 28px; margin-left: 5px; }
            .calculator-wrapper { margin: 15px; padding: 15px; }
            .top-section { grid-template-columns: 1fr; gap: 0; margin-bottom: 20px; }
            .products-column, .personal-details-column, .billing-address-column, .shipping-address-column { padding: 0 0 20px 0; grid-column: auto; grid-area: auto; }
            input[type="text"], input[type="email"], input[type="tel"], select, textarea, input[type="number"]:not(.product-input input[type="number"]) { width: 100%; max-width: none; margin-bottom: 15px; padding: 12px; }
            .product-input input[type="number"] { width: 50px; padding: 4px 5px; font-size: 0.9em; }
            #odpowiedz-matematyczna { width: 70px; padding: 8px; margin-bottom: 0; }
            .dolna-sekcja { flex-direction: column; gap: 25px; margin-top: 25px; }
            #sekcja-wyslij { flex-direction: column; align-items: flex-start; gap: 15px; padding-top: 20px; }
            #licznik-sesji { margin-left: 0; margin-top: 10px; align-self: flex-start; }
            th, td { padding: 8px; }
            #wycena { display: block; overflow-x: auto; white-space: nowrap; }
         }
    