:root {
    --wh-green: #64BF7F;
    --nav-text: #2E3159
}

#include-header {
    position: fixed;
    width: 100%;
    z-index: 999;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.site-header {
    background: transparent;
    transition: background-color 240ms ease;
    position: relative;
    z-index: 100;
    font-family: var(--font-body);
    padding-block: 15px;
}


.site-header.scrolled {
    background-color: var(--color-white);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
    padding-block: clamp(12px, 1vw, 30px);
}

.logo img {
    height: 35px;
}

@media (min-width: 1184px) {
    .logo img {
        height: 50px;
    }
}

@media (min-width: 1706px) {
    .logo img {
        height: 64px;
    }
}

.right-group {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-left: auto;
}

/* Nav list (base) */
.nav-links {
    list-style: none;
    margin-right: 65px;
    padding: 0;
    display: flex;
    gap: 40px;
    align-items: center;
    justify-content: flex-end;
}

.nav-links li {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--nav-text);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 16px;
    font-family: var(--font-headings);
    display: inline-block;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a.active {
    color: var(--wh-green);
}

.nav-links a.active::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 2px;
    background: var(--wh-green);
}

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

.whatsapp img {
    width: 43px;
    height: 43px;
    display: block;
}

/* hamburger */
.nav-toggle {
    display: none;
    background: transparent;
    border: 0;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle .bar {
    display: block;
    width: 22px;
    height: 2px;
    background: #222;
    margin: 4px 0;
    border-radius: 2px;
    transition: transform 260ms ease, opacity 200ms ease;
}

.nav-toggle.open .bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle.open .bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-toggle.open .bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

@media (min-width: 1706px) {
    .nav-links a {
        font-size: 1.50rem;
    }

    .whatsapp img {
        width: 58px;
        height: 58px;
    }
}

/* Mobile behaviour and animation */
@media (max-width:900px) {
    #include-header {
        padding-block: 12px;
    }

    .site-header {
        padding-block: 0;
    }

    .nav-toggle {
        display: inline-block;
        order: 3;
    }

    .right-group {
        order: 2;
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        background: var(--color-white);
        padding: 0;
        position: absolute;
        left: 16px;
        right: 16px;
        top: 64px;
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        gap: 8px;
        z-index: 120;
        align-items: center;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transform: translateY(-8px);
        transition: max-height 320ms cubic-bezier(.2, .9, .2, 1), opacity 260ms ease, transform 300ms ease;
        pointer-events: none;
    }

    .nav-links li {
        width: fit-content;
    }

    .nav-links a {
        display: block;
        padding: 12px 16px;
        width: 100%;
        text-align: center;
        color: var(--nav-text);
    }

    .nav-links {
        width: 100%;
    }

    .main-nav.open .nav-links {
        max-height: 420px;
        opacity: 1;
        transform: none;
        pointer-events: auto;
        right: 0;
        left: 0;
        padding: 30px 10px;
    }

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

@media (max-width: 768px) {
    #include-header {
        background-color: var(--color-white);
    }
}

@media (max-width:480px) {

    .whatsapp img {
        width: 30px;
        height: 30px;
    }

    .nav-links {
        left: 8px;
        right: 8px;
        top: 50px;
    }
}