:root {
    --color-text-light: #ffffff;
    --color-background-dark: #0A0A0A;
    --color-accent: #e67e22;
    --border-color-dark: rgba(255, 255, 255, 0.1);
    --transition-fast: 0.3s ease;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.5);
    /* Mais transparente no início */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    /* Borda transparente no início */
    height: 85px;
    /* Altura inicial */
    transition: height var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.navbar.scrolled {
    height: 70px;
    /* Altura reduzida após o scroll */
    background: rgba(10, 10, 10, 0.85);
    /* Fundo mais sólido */
    border-bottom: 1px solid var(--border-color-dark);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
}

.nav-container {
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
}

.logo-img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: 2px solid var(--color-text-light);
}

.logo h1 {
    color: var(--color-text-light);
    font-size: 1.8rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 1rem;
}

.nav-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    padding: 0.5rem 1rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 60%;
}

.nav-links a:hover {
    color: var(--color-accent);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.cart-icon {
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.cart-svg {
    stroke: var(--color-text-light);
    transition: stroke var(--transition-fast);
}

.cart-icon:hover .cart-svg {
    stroke: var(--color-accent);
}

.cart-count {
    background: var(--color-accent);
    color: white;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.8rem;
    position: absolute;
    top: -8px;
    right: -10px;
    border: 2px solid var(--color-background-dark);
}

.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 2rem;
    height: 2rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 20;
}

.hamburger-menu span {
    width: 2rem;
    height: 3px;
    background: var(--color-text-light);
    border-radius: 10px;
    transition: all 0.3s linear;
    position: relative;
    transform-origin: 1px;
}

@media (max-width: 768px) {
    .hamburger-menu {
        display: flex;
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        background: rgba(0, 0, 0, 0.98);
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 100%;
        transition: transform 0.4s ease-in-out;
        transform: translateX(100%);
        z-index: 10;
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .nav-links a {
        font-size: 1.5rem;
    }

    .navbar.nav-open .hamburger-menu span:nth-child(1) {
        transform: rotate(45deg);
    }

    .navbar.nav-open .hamburger-menu span:nth-child(2) {
        opacity: 0;
        transform: translateX(20px);
    }

    .navbar.nav-open .hamburger-menu span:nth-child(3) {
        transform: rotate(-45deg);
    }
}