:root {
    /* Easy to adjust nav height */
    --nav-height: 60px;
}

/* Reset-ish */
/* * {
    margin: 0;
    padding: 0;
} */

/* NAVBAR BASE */
.site-nav {
    position: sticky; /* stays at top when scrolling */
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--gradient-main);
    border-bottom: 0.125rem solid var(--highlight-colour);
    z-index: 1000;
    font-family: 'Obsidian', Arial, sans-serif;
}

.nav-inner {
    /* max-width: 1200px; */
    margin: 0 auto;
    height: 100%;
    padding: 0 1rem;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;

    position: relative;
    /* for mobile menu positioning */

    /* background-color: greenyellow; */
}

/* LEFT: Logo */
.nav-left {
    display: flex;
    align-items: center;
}

.nav-logo-link {
    display: inline-flex;
    width: var(--nav-height);
    height: var(--nav-height);
    align-items: center;
    justify-content: center;
}

.nav-logo {
    width: 90%;
    height: 90%;
    object-fit: contain;

    transition: scale 0.5s ease, filter 0.5s ease;
}

.nav-logo:hover {
    scale: 1.1;
    filter: brightness(130%);
}

/* CENTER: Main links */
.nav-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-item>a,
.nav-item>p,
.dropdown-toggle {
    font-family: 'Obsidian', Arial, sans-serif;
    font-size: 1.25rem;
    font-weight: 500;
    color: white;
    text-decoration: none;
    padding: 0.25rem 0;
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-item>p {
    cursor: default;
}

/* underline hover effect */
.nav-item>a::after,
.dropdown-toggle::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.15rem;
    width: 0;
    height: 2px;
    background: var(--highlight-colour);
    transition: width 0.2s ease;
}

.nav-item>a:hover::after,
.dropdown-toggle:hover::after {
    width: 100%;
}

/* DROPDOWNS */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;

    background: var(--gradient-main);;
    border-radius: 0.5rem;
    padding: 0.5rem 0;
    list-style: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);

    opacity: 0;
    visibility: hidden;
    transform-origin: top center;
    transform: translate(-50%, 0.25rem) scale(0.98);
    transition:
        opacity 0.16s ease,
        transform 0.16s ease,
        visibility 0.16s ease;
    z-index: 999;
}

.dropdown-menu li a {
    display: block;
    padding: 0.4rem 0.9rem;
    font-size: 1.1rem;
    color: white;
    text-decoration: none;
    white-space: nowrap;
}

.dropdown-menu li a:hover {
    background: var(--main-colour1);
    color: white;
}

/* show dropdown on hover (desktop) */
.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0.5rem) scale(1);
}

/* RIGHT: Social icons + theme toggle (3 × 60x60 images) */
.nav-right {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.nav-icon {
    width: var(--nav-height);
    height: var(--nav-height);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    overflow: hidden;
    /* prevents scaling from breaking out */
}

.nav-icon img {
    width: 90%;
    /* initial 90% size */
    height: 90%;
    /* stays inside 60x60 container */
    object-fit: contain;
    transition: transform 0.5s ease, filter 0.5s ease;
}

/* scale on hover – stays visually inside site-nav because container is fixed */
.nav-icon:hover img {
    transform: scale(1.1);
    filter: brightness(130%);
}

/* MOBILE: hamburger toggle */
.nav-toggle {
    display: none;
    /* hidden checkbox */
}

.nav-toggle-label {
    display: none;
    /* shown only on small screens */
    width: 32px;
    height: 24px;
    flex-shrink: 0;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
}

.nav-toggle-label span {
    display: block;
    height: 3px;
    border-radius: 999px;
    background: white;
}

.toggle-theme-btn {
    width: calc(var(--nav-height)*0.9);
    height: calc(var(--nav-height)*0.9);
    border: 0.125rem solid var(--highlight-colour);
    border-radius: var(--radius1);
    background: none;
    color: white;
    /* padding: 14px 28px; */
    font-size: 0.75rem;
    cursor: pointer;

    transition: background 0.5s ease, scale 0.5s ease;
}

.toggle-theme-btn:hover {
    scale: 1.1;
    /* background: var(--border-colour); */
    box-shadow: 0 0 10px var(--glow-colour);
}

/* RESPONSIVE BEHAVIOUR */

/* Desktop / tablet default is already defined above. */
/* Now override for smaller screens. */
@media (max-width: 1080px) {
    .nav-inner {
        padding-inline: 0.5rem;
        gap: 0.5rem;
    }

    /* show hamburger */
    .nav-toggle-label {
        display: flex;
    }

    /* SHOW nav-right (social icons) on mobile */
    .nav-right {
        display: flex;
        gap: 0.25rem;
    }

    /* Make icons slightly smaller on mobile so everything fits */
    .nav-icon {
        /* 45px */
        width: calc(var(--nav-height) * 0.75);
        height: calc(var(--nav-height) * 0.75);
    }

    .toggle-theme-btn {
        width: calc(var(--nav-height) * 0.75);
        height: calc(var(--nav-height) * 0.75);
        font-size: 0.6rem;
    }

    .nav-icon img {
        width: 85%;
        height: 85%;
    }

    /* Reorder the flex items visually */
    .nav-left {
        order: 1;
        /* LOGO */
    }

    .nav-right {
        order: 2;
        /* SOCIAL ICONS */
    }

    .nav-toggle-label {
        order: 3;
        /* HAMBURGER */
    }

    /* nav-center becomes dropdown panel below navbar */
    .nav-center {
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--gradient-main);
        border-bottom: 0.125rem solid var(--highlight-colour);
        display: none;
        justify-content: flex-start;
        padding-bottom: 0.75rem;
    }

    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        padding: 0.6rem 1rem 0.75rem;
        gap: 0.75rem;
    }

    .nav-item > a,
.dropdown-toggle {
    position: relative;
}

.nav-item > a::after,
.dropdown-toggle::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -0.2rem;
    height: 2px;
    background: var(--highlight-colour);

    width: 0%;
    transition: width 0.2s ease;
}

.nav-item > a:hover::after,
.dropdown-toggle:hover::after {
    width: 100%;
}

    /* Show nav-center when hamburger checked */
    .nav-toggle:checked~.nav-center {
        display: flex;
    }

    /* Dropdowns expanded automatically */
    .dropdown {
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        padding-top: 0.25rem;
        padding-bottom: 0.5rem;
        background: transparent;
    }

    .dropdown-menu li a {
        padding-left: 1.25rem;
    }
}

@media (max-width: 1080px) {
    /* ... all your existing mobile styles ... */

    .dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        padding-top: 0.25rem;
        padding-bottom: 0.5rem;
        background: transparent;
    }

    .dropdown-menu li a {
        padding-left: 1.25rem;
    }

    /* 🔥 IMPORTANT: cancel the desktop hover transform on mobile */
    .dropdown:hover .dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: none;
        /* stops it jumping left */
    }
}

@media (max-width: 1080px) {
    /* ... your other mobile styles ... */

    /* Remove underline just from dropdown headers on mobile */
    .dropdown-toggle::after {
        display: none !important;
        /* or: content: none; */
    }
}