* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Arial, sans-serif;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: #f8f8f8;
    color: #222;
}

header {
    background-color: #028b95;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    max-width: 100px;
    height: auto;
}

.header-text {
    text-align: right;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: #222;
}

.slogan-part, .will {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
}

h2 .will {
    display: inline-block;
    animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); }
}

main {
    flex: 1;
    padding: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.product {
    text-align: center;
    margin-bottom: 40px;
}

.sticker-section {
    margin-bottom: 120px;
}

.tshirt-images {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.product-image {
    max-width: 100%;
    max-height: 600px;
    height: auto;
    border-radius: 10px;
    margin: 10px 0;
}

.product-image.tshirt-left, .product-image.tshirt-right {
    max-width: 45%;
    max-height: 600px;
    border-radius: 10px;
}

.product p {
    margin: 10px 0;
    font-size: 1.1rem;
}

.product p strong {
    color: #df2e38;
}

.product select {
    padding: 8px;
    margin: 10px 0;
    border-radius: 5px;
    border: 1px solid #028b95;
    width: 150px;
}

.product input[type="number"] {
    padding: 8px;
    margin: 10px 0;
    border-radius: 5px;
    border: 1px solid #028b95;
    width: 80px;
    text-align: center;
}

.cta-button {
    padding: 10px 20px;
    background-color: #028b95;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.cta-button:hover {
    background-color: #df2e38;
    transform: translateY(-2px);
}

.cart-popup {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 300px;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    max-height: 300px;
    overflow-y: auto;
}

.cart-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 10px;
}

.checkout-button {
    padding: 5px 10px;
    font-size: 0.8rem;
}

.cart-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.cart-item img {
    width: 50px;
    height: auto;
    border-radius: 5px;
}

.cart-item input {
    width: 50px;
    padding: 5px;
    border-radius: 50%;
    border: 1px solid #028b95;
    text-align: center;
}

#cart-total {
    font-weight: bold;
    color: #df2e38;
}

footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: #222;
    padding: 15px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.payment-options {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
}

.payment-button, .coffee-button {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s, transform 0.2s;
    width: 80px;
    height: 30px;
    overflow: hidden;
}

.payment-button img, .coffee-button img {
    width: auto;
    height: 100%;
    object-fit: cover;
    border-radius: 5px;
}

.payment-button:hover, .coffee-button:hover {
    background-color: #df2e38;
    transform: translateY(-2px);
}

.social-icons {
    text-align: center;
    margin-top: 120px;
    padding-bottom: 200px;
}

.social-links a {
    color: #222;
    margin: 0 10px;
    font-size: 1.2rem;
    text-decoration: none;
}

.social-links a:hover {
    color: #df2e38;
}

.qr-popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.qr-popup img {
    max-width: 80%;
    max-height: 80%;
    width: 300px;
    height: 300px;
    object-fit: contain;
    background: white;
    padding: 20px;
    border-radius: 10px;
}

/* Mobile Layout */
@media (max-width: 600px) {
    .header-content {
        flex-direction: column;
        align-items: center;
    }

    .header-text {
        text-align: center;
    }

    .logo {
        max-width: 80px;
        margin-bottom: 10px;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.4rem;
    }

    main {
        padding: 15px;
    }

    .tshirt-images {
        flex-direction: column;
        gap: 0;
    }

    .product-image.tshirt-left, .product-image.tshirt-right {
        max-width: 100%;
        max-height: 400px;
        margin: 0;
        border-radius: 0;
        width: 100vw;
    }

    .product-image {
        max-height: 400px;
    }

    .product select, .product input[type="number"] {
        width: 120px;
    }

    .cta-button {
        padding: 8px 16px;
        font-size: 0.8rem;
    }

    .cart-popup {
        position: static;
        width: 100%;
        background: transparent;
        padding: 10px;
        box-shadow: none;
        max-height: none;
        overflow: visible;
    }

    .cart-header {
        background: white;
        padding: 10px;
        border-radius: 5px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    .footer-content {
        flex-direction: column;
        padding: 10px 0;
        height: auto;
        background-color: #222;
    }

    .payment-options {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        justify-items: center;
        width: 92%;
        margin: 10px auto;
    }

    .payment-options a:nth-child(1) { grid-column: 1; grid-row: 1; } /* PayPal */
    .payment-options a:nth-child(2) { grid-column: 2; grid-row: 1; } /* Venmo */
    .payment-options a:nth-child(3) { grid-column: 3; grid-row: 1; } /* GPay */
    .payment-options a:nth-child(4) { grid-column: 1; grid-row: 2; } /* Apple Pay */
    .payment-options a:nth-child(5) { grid-column: 2; grid-row: 2; } /* Stripe */
    .payment-options a:nth-child(6) { grid-column: 3; grid-row: 2; } /* Buy Me a Coffee */

    .payment-button, .coffee-button {
        width: 100px;
        height: 30px;
    }

    .social-icons {
        margin-top: 120px;
        padding-bottom: 200px;
    }

    .social-links a {
        color: #222;
    }
}

/* PC/Tablet Layout */
@media (min-width: 601px) {
    .payment-options {
        flex-wrap: nowrap;
    }

    .logo {
        margin-left: 20px;
    }
}