.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.header__container {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: .9rem 2rem .9rem 1.25rem;
}

.header__burger {
    display: none;
    background: none;
    border: none;
    font-size: 2.2rem;
    color: var(--color-secondary);
    cursor: pointer;
}

.header__logo img {
    height: 56px;
    width: auto;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-left: 1.5rem;
}

.header__nav-link {
    text-decoration: none;
    font-weight: 500;
    color: var(--color-secondary);
    white-space: nowrap;
}

.header__nav-link:hover {
    color: var(--color-primary);
}

.header__search {
    flex: 1;
    display: flex;
    position: relative;
}

.header__search-input {
    width: 100%;
    max-width: 560px;
    margin-inline: auto;
    padding: .75rem 3.2rem .75rem 1.4rem;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background-color: transparent;
    font-weight: 500;
}

.header__search-input::placeholder {
    color: var(--color-text-muted);
}

.header__search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(156, 172, 108, .25);
}

.header__search-submit {
    position: absolute;
    right: calc((100% - 560px) / 2 + 1rem);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--color-text-muted);
    cursor: pointer;
}

.header__search-submit:hover {
    color: var(--color-primary);
}

.header__search-close {
    position: absolute;
    right: calc((100% - 560px) / 2 + 3.2rem);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 1.6rem;
    color: var(--color-secondary);
    cursor: pointer;
    display: none;
}

.header--search-active .header__search-close {
    display: block;
}

.header__actions {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    margin-left: auto;
}

.header__search-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--color-secondary);
    cursor: pointer;
}

.header__favorite,
.header__cart {
    font-size: 1.8rem;
    color: var(--color-secondary);
    position: relative;
}

.header__favorite:hover,
.header__cart:hover {
    color: var(--color-primary);
}

.header__cart-count {
    position: absolute;
    top: -8px;
    right: -12px;
    background-color: var(--color-primary);
    color: #fff;
    font-size: .7rem;
    font-weight: 600;
    padding: .1rem .5rem;
    border-radius: 50%;
}

@media (max-width: 1183px) {
    .header__search-input {
        max-width: 420px;
    }

    .header__search-submit {
        right: calc((100% - 420px) / 2 + 1rem);
    }

    .header__search-close {
        right: calc((100% - 420px) / 2 + 3.2rem);
    }
}

@media (max-width: 1044px) {
    .header__search-input {
        max-width: 340px;
    }

    .header__search-submit {
        right: calc((100% - 340px) / 2 + 1rem);
    }

    .header__search-close {
        right: calc((100% - 340px) / 2 + 3.2rem);
    }
}

@media (max-width: 980px) {
    .header__container {
        padding-right: 1rem;
    }

    .header__burger {
        display: block;
    }

    .header__nav {
        display: none;
    }

    .header__search {
        display: none;
    }

    .header__search-toggle {
        display: block;
    }

    .header--search-active .header__logo,
    .header--search-active .header__actions,
    .header--search-active .header__burger {
        display: none;
    }

    .header--search-active .header__search {
        display: flex;
        flex: 1;
    }

    .header--search-active .header__search-input {
        max-width: 100%;
        padding-right: 3rem;
    }

    .header--search-active .header__search-submit {
        right: 1rem;
    }

    .header__search-close {
        right: 3.2rem;
    }
}

@media (max-width: 480px) {
    .header__container {
        padding-right: .9rem;
    }

    .header__actions {
        gap: .75rem;
    }
}

.side-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background-color: var(--color-surface);
    box-shadow: 2px 0 16px rgba(0, 0, 0, .12);
    transform: translateX(-100%);
    transition: transform .3s ease;
    z-index: 120;
    display: flex;
    flex-direction: column;
}

.header--menu-active ~ .side-menu {
    transform: translateX(0);
}

.side-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

.side-menu__logo img {
    height: 44px;
    width: auto;
}

.side-menu__close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-secondary);
    cursor: pointer;
}

.side-menu__nav {
    display: flex;
    flex-direction: column;
    padding: .75rem 0;
}

.side-menu__link {
    padding: .85rem 1.25rem;
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 500;
}

.side-menu__link:hover {
    background-color: rgba(0, 0, 0, .04);
    color: var(--color-primary);
}

.side-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .45);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease;
    z-index: 110;
}

.header--menu-active ~ .side-menu-overlay {
    opacity: 1;
    pointer-events: auto;
}

.whatsapp-float {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    width: 56px;
    height: 56px;
    background-color: #25d366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
    z-index: 200;
    text-decoration: none;
    transition: transform .2s ease, box-shadow .2s ease;
}

.whatsapp-float:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 32px rgba(0, 0, 0, .35);
}