/* ==========================================================================
   Chester Dance Centre — nav.css
   Clean minimal nav. Light background, dark text, Inter Tight.
   (Mirrors Cambridge; hardcoded post-it rgba retoned to aqua #7de2d1.)
   ========================================================================== */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #ededed;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header__inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--sp-5);
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-5);
}

/* --- Logo --- */
.logo {
    font-family: 'Inter Tight', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    line-height: 1.1;
    color: #222;
}

.logo--postit {
    position: relative;
    background: var(--mustard-bright);
    color: var(--black);
    padding: 0.4em 0.7em 0.45em;
    box-shadow: 2px 3px 6px rgba(0, 0, 0, 0.08);
    transform: rotate(-1deg);
    transition: transform var(--transition);
}

.logo--postit:hover {
    transform: rotate(0deg);
}

.logo__tape {
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(1.5deg);
    width: 50px;
    height: 18px;
    background: rgba(255, 255, 255, 0.45);
    border-radius: 1px;
    pointer-events: none;
}

/* --- Nav list --- */
.nav__list {
    display: flex;
    align-items: center;
    gap: clamp(0.25rem, 1.2vw, 1rem);
}

.nav__link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: var(--sp-2) var(--sp-3);
    font-family: 'Inter Tight', sans-serif;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: #222;
    transition: color var(--transition);
}

.nav__link::before {
    content: "";
    position: absolute;
    inset: 2px -2px;
    background: rgba(125, 226, 209, 0.40);
    z-index: -1;
    clip-path: polygon(2% 0%, 98% 2%, 100% 15%, 97% 40%, 100% 60%, 98% 85%, 100% 100%, 3% 98%, 0% 80%, 2% 55%, 0% 30%, 1% 10%);
}

.nav__link:hover {
    color: #111;
}

.nav__link:hover::before {
    background: rgba(125, 226, 209, 0.65);
}

.nav__link i {
    font-size: 0.65rem;
    color: #222;
    transition: transform var(--transition);
}

/* --- Dropdowns (desktop) --- */
.nav__item--has-dropdown {
    position: relative;
}

.nav__dropdown {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 190px;
    max-height: 70vh;
    overflow-y: auto;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 0;
    padding: var(--sp-3) 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    box-shadow: 0 12px 40px -10px rgba(0, 0, 0, 0.12);
}

.nav__dropdown a {
    display: block;
    padding: 0.45rem var(--sp-4);
    font-size: var(--fs-sm);
    color: #666;
    transition: color var(--transition), background-color var(--transition);
}

.nav__dropdown a:hover {
    color: #222;
    background: #f5f5f5;
}

@media (min-width: 751px) {
    .nav__item--has-dropdown:hover > .nav__dropdown,
    .nav__item--has-dropdown:focus-within > .nav__dropdown {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }

    .nav__item--has-dropdown:hover .nav__link i {
        transform: rotate(180deg);
    }
}

@media (max-width: 1024px) and (min-width: 751px) {
    .logo {
        font-size: 1rem;
    }

    .logo--postit {
        padding: 0.3em 0.5em 0.35em;
    }

    .nav__link {
        font-size: 0.75rem;
        padding: var(--sp-1) var(--sp-2);
    }
}

/* --- Hamburger --- */
.nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    align-items: center;
}

.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #222;
    transition: transform var(--transition), opacity var(--transition);
}

.nav__toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav__toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* --- Mobile --- */
@media (max-width: 750px) {
    .nav__toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 72px;
        right: 0;
        bottom: 0;
        width: 85vw;
        background: #ededed;
        transform: translateX(100%);
        transition: transform 280ms ease;
        overflow-y: auto;
        padding: var(--sp-5);
    }

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

    .nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .nav__item {
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }

    .nav__link {
        width: 100%;
        justify-content: space-between;
        padding: var(--sp-4) var(--sp-2);
        font-size: var(--fs-base);
    }

    .nav__dropdown {
        position: static;
        transform: none;
        min-width: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 1;
        visibility: visible;
        border: none;
        box-shadow: none;
        background: transparent;
        padding: 0;
        transition: max-height 320ms ease;
    }

    .nav__item--has-dropdown.active .nav__dropdown {
        max-height: 60vh;
        overflow-y: auto;
    }

    .nav__item--has-dropdown.active .nav__link i {
        transform: rotate(180deg);
    }
}