:root {
    --azul: #219BEF;
    --azul-oscuro: #176BAA;
    --azul-claro: #61B7F1;
    --azul-hover: #1a7cc0;
    --azul-extra-claro: #EBF6FF;
    --negro: #000000;
    --gris-claro: #f5f5f5;
    --gris-oscuro: #333333;
    --blanco: #ffffff;
    --sombra-suave: 0 2px 10px rgba(0, 0, 0, 0.1);
    --sombra-media: 0 4px 12px rgba(0, 0, 0, 0.15);
    --transicion: all 0.3s ease;
    --gradiente-azul: linear-gradient(135deg, var(--azul) 0%, var(--azul-oscuro) 100%);
}

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

.nav-container {
    display: flex;
    gap: 20%;
    align-items: center;
}

.logo {
    width: 150px;
    height: auto;
}

.nav-list {
    list-style: none;
    display: flex;
    margin-left: 15px;
}

.nav-list li {
    margin-right: 15px;
}

.nav-list a {
    text-decoration: none;
    color: #000;
    font-size: 16px;
    padding: 10px;
    display: block;
}

.nav-list a, .nav-links a {
    text-decoration: none;
    color: #000;
    font-size: 16px;
    padding: 10px;
    display: block;
    position: relative; 
}

.nav-list a::after, .nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--azul);
    transition: all 0.3s ease-in-out;
    transform: translateX(-50%);
}

.nav-list a:hover::after, .nav-links a:hover::after {
    width: 100%;
}

#paypal-button-container {
    margin-top: 20px;
    width: 100%;
}

.cart-page {
    padding: 50px 20px;
    background: linear-gradient(135deg, var(--azul-extra-claro) 0%, var(--blanco) 100%);
    min-height: calc(100vh - 200px);
}

.cart-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.cart-container h1 {
    grid-column: 1 / -1;
    color: var(--azul-oscuro);
    font-size: 2.5rem;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
}

.cart-container h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--gradiente-azul);
    border-radius: 2px;
}

.cart-items {
    background: var(--blanco);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--sombra-media);
    transition: var(--transicion);
}

.cart-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 25px;
    padding: 25px;
    border-bottom: 2px solid var(--azul-extra-claro);
    align-items: center;
    transition: var(--transicion);
}

.cart-item:hover {
    transform: translateY(-2px);
    background: var(--azul-extra-claro);
    border-radius: 15px;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: var(--sombra-suave);
    transition: var(--transicion);
}

.cart-item img:hover {
    transform: scale(1.05);
}

.item-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.item-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--azul);
}

.item-variant {
    color: var(--gris-oscuro);
    font-size: 1rem;
    opacity: 0.8;
}

.item-price {
    font-weight: 700;
    color: var(--azul-oscuro);
    font-size: 1.3rem;
}

.item-actions {
    display: flex;
    gap: 25px;
    align-items: center;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    background: var(--azul-extra-claro);
    padding: 8px 15px;
    border-radius: 20px;
}

.quantity-btn {
    background: var(--blanco);
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--azul);
    font-weight: 600;
    font-size: 1.2rem;
    transition: var(--transicion);
    box-shadow: var(--sombra-suave);
}

.quantity-btn:hover {
    background: var(--azul);
    color: var(--blanco);
    transform: scale(1.1);
}

.quantity-controls span {
    font-weight: 600;
    color: var(--azul);
    min-width: 30px;
    text-align: center;
}

.remove-item {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.4rem;
    color: #dc3545;
    opacity: 0.7;
    transition: var(--transicion);
    padding: 10px;
}

.remove-item:hover {
    opacity: 1;
    transform: scale(1.1) rotate(10deg);
}

.cart-summary {
    background: var(--blanco);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--sombra-media);
    height: fit-content;
    position: sticky;
    top: 100px;
    align-self: start;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--azul-extra-claro);
    font-size: 1.1rem;
}

.summary-row.total {
    border-bottom: none;
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--azul);
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid var(--azul);
}

.checkout-form {
    grid-column: 1 / -1;
    background: var(--blanco);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--sombra-media);
    margin-top: 30px;
}

.checkout-form h2 {
    color: var(--azul);
    margin-bottom: 30px;
    font-size: 1.8rem;
    position: relative;
}

.checkout-form h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradiente-azul);
    border-radius: 2px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--azul-oscuro);
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--azul-extra-claro);
    border-radius: 12px;
    font-size: 1rem;
    transition: var(--transicion);
    background: var(--azul-extra-claro);
}

.form-group input:focus {
    border-color: var(--azul);
    background: var(--blanco);
    outline: none;
    box-shadow: 0 0 0 4px rgba(33, 155, 239, 0.1);
}

.checkout-btn {
    background: var(--gradiente-azul);
    color: var(--blanco);
    border: none;
    padding: 18px 30px;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: var(--transicion);
    position: relative;
    overflow: hidden;
    margin-top: 20px;
}

.checkout-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.checkout-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(33, 155, 239, 0.3);
}

.checkout-btn:hover::after {
    left: 100%;
}

.empty-cart {
    text-align: center;
    padding: 80px 20px;
}

.empty-cart p {
    color: var(--gris-oscuro);
    margin-bottom: 30px;
    font-size: 1.2rem;
}

.continue-shopping {
    display: inline-block;
    padding: 15px 30px;
    background: var(--gradiente-azul);
    color: var(--blanco);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: var(--transicion);
}

.continue-shopping:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(33, 155, 239, 0.3);
}

.footer {
    background: var(--negro);
    color: var(--blanco);
    padding: 60px 20px 30px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: var(--azul-claro);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--blanco);
    text-decoration: none;
    transition: var(--transicion);
}

.footer-section a:hover {
    color: var(--azul-claro);
}

.footer-bottom {
    max-width: 1200px;
    margin: 40px auto 0;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

@media (max-width: 768px) {
    .cart-container {
        grid-template-columns: 1fr;
    }

    .cart-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 15px;
    }

    .cart-item img {
        margin: 0 auto;
    }

    .item-actions {
        justify-content: center;
        flex-direction: column;
    }

    .checkout-form {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .cart-page {
        padding: 20px 10px;
    }

    .cart-container h1 {
        font-size: 2rem;
    }

    .quantity-controls {
        padding: 5px 10px;
    }

    .quantity-btn {
        width: 30px;
        height: 30px;
    }
}