/* Shared site navigation. It is kept separate from the musical/editor styles
   so the responsive shell can evolve without changing score rendering. */
.skip-link {
    position: absolute;
    inset-inline-start: .75rem;
    top: .5rem;
    z-index: 100;
    padding: .65rem 1rem;
    transform: translateY(-200%);
    background: var(--sheet);
    border: 2px solid var(--ink);
}

.skip-link:focus { transform: none; }

.site-header {
    border-bottom: 1px solid var(--rule);
    background: var(--sheet);
}

.site-header__inner {
    display: flex;
    width: min(70rem, calc(100% - 2rem));
    flex-wrap: wrap;
    align-items: center;
    gap: .35rem 1.25rem;
    margin-inline: auto;
    padding-block: .75rem;
}

.site-brand {
    flex: 0 0 auto;
    font-size: 1.2rem;
    letter-spacing: -.025em;
}

.site-header__menus {
    display: flex;
    flex: 1 1 0;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    min-width: 0;
    gap: .35rem 1.25rem;
}

.site-header__menus nav { min-width: 0; }

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: .15rem .4rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-nav a {
    display: block;
    padding: .6rem .55rem;
    border-bottom: 3px solid transparent;
    text-decoration: none;
    font-size: .95rem;
}

.site-nav a:hover { text-decoration: underline; text-underline-offset: .2em; }
.site-nav a[aria-current="page"] { border-bottom-color: var(--accent); font-weight: 700; }

.site-nav__disabled {
    display: block;
    padding: .6rem .55rem;
    border-bottom: 3px solid transparent;
    color: var(--ink-soft);
    opacity: .62;
    cursor: not-allowed;
    text-decoration: underline dotted;
    text-underline-offset: .2em;
}

.site-menu-toggle {
    display: none;
    align-items: center;
    gap: .55rem;
    min-height: 2.55rem;
    padding: .5rem .75rem;
    border: 1px solid var(--ink);
    border-radius: 3px;
    background: var(--ink);
    color: var(--sheet);
    font: .95rem var(--ui-font);
    cursor: pointer;
}

.site-menu-toggle__icon {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 1.1rem;
}

.site-menu-toggle__icon span {
    display: block;
    height: 2px;
    width: 100%;
    background: currentColor;
    transition: transform .15s ease, opacity .15s ease;
}

.site-menu-toggle[aria-expanded="true"] .site-menu-toggle__icon span:first-child {
    transform: translateY(6px) rotate(45deg);
}

.site-menu-toggle[aria-expanded="true"] .site-menu-toggle__icon span:nth-child(2) { opacity: 0; }

.site-menu-toggle[aria-expanded="true"] .site-menu-toggle__icon span:last-child {
    transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 63.99rem) {
    .site-header__inner { width: calc(100% - 1.25rem); gap: .35rem; }

    .site-brand { flex: 1 1 auto; }

    .site-menu-toggle { display: inline-flex; margin-inline-start: auto; }

    .site-header__menus {
        flex-basis: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: .35rem;
        padding-top: .55rem;
        border-top: 1px solid var(--rule);
    }

    .site-header__menus nav { width: 100%; }

    .site-nav {
        flex-direction: column;
        gap: 0;
    }

    .site-nav a {
        padding: .65rem .55rem;
        border-bottom: 0;
        border-inline-start: 3px solid transparent;
    }

    .site-nav__disabled {
        padding: .65rem .55rem;
        border-bottom: 0;
        border-inline-start: 3px solid transparent;
    }

    .site-nav a[aria-current="page"] {
        border-bottom: 0;
        border-inline-start-color: var(--accent);
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-menu-toggle__icon span { transition: none; }
}

.language-switch {
    display: inline-flex;
    flex: 0 0 auto;
    gap: .2rem;
    padding: .15rem;
    border: 1px solid var(--rule);
    border-radius: .35rem;
    background: var(--paper);
}

.language-switch__button {
    display: inline-block;
    min-width: 2.35rem;
    padding: .35rem .5rem;
    border-radius: .25rem;
    text-align: center;
    text-decoration: none;
    font-size: .85rem;
    font-weight: 700;
}

.language-switch__button:hover,
.language-switch__button:focus-visible {
    background: var(--sheet);
}

.language-switch__button[aria-current="true"] {
    background: var(--ink);
    color: var(--sheet);
}

/* Studio shell */
.site-header {
    border-bottom-color: rgba(255,255,255,.08);
    background: rgba(8, 12, 17, .94);
    box-shadow: 0 8px 28px rgba(0,0,0,.18);
    backdrop-filter: blur(14px);
}

.site-header__inner {
    width: min(78rem, calc(100% - 2.25rem));
    min-height: 4rem;
}

.site-brand {
    position: relative;
    padding-inline-start: 1.8rem;
    color: #f4f1ea;
    font-family: var(--display-font);
    font-size: 1.22rem;
    font-weight: 700;
    letter-spacing: -.035em;
}
.site-brand::before {
    content: "♫";
    position: absolute;
    inset-inline-start: 0;
    top: 50%;
    translate: 0 -50%;
    color: var(--accent);
    font-size: 1.05rem;
}

.site-nav a {
    border-radius: .48rem;
    color: #aab3c0;
    font-size: .88rem;
    font-weight: 650;
    transition: color .15s ease, background .15s ease;
}
.site-nav a:hover {
    background: rgba(255,255,255,.04);
    color: #fff;
    text-decoration: none;
}
.site-nav a[aria-current="page"] {
    border-bottom-color: var(--accent);
    color: #fff;
}
.site-nav__disabled { color: #687281; text-decoration: none; }

.language-switch {
    border-color: rgba(255,255,255,.11);
    background: #0c1219;
}
.language-switch__button { color: #9da7b5; }
.language-switch__button:hover,
.language-switch__button:focus-visible { background: rgba(255,255,255,.055); color: #fff; }
.language-switch__button[aria-current="true"] {
    background: rgba(var(--accent-rgb), .17);
    color: #fff;
    box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), .35);
}

.site-menu-toggle {
    border-color: rgba(255,255,255,.14);
    border-radius: .58rem;
    background: #151e29;
    color: #f1f3f5;
}
.site-menu-toggle:hover { background: #202b39; }

.skip-link {
    border-color: var(--accent);
    border-radius: .5rem;
    background: #101720;
    color: #fff;
}

.site-footer {
    border-top-color: rgba(255,255,255,.08);
    color: #7f8997;
}
.site-footer .site-nav a { color: #949eab; }
.site-footer .site-nav a:hover { color: #fff; }

@media (max-width: 63.99rem) {
    .site-header__inner { width: calc(100% - 1rem); }
    .site-header__menus {
        border-top-color: rgba(255,255,255,.08);
        background: #0b1118;
        border-radius: .65rem;
        padding: .55rem;
    }
    .site-nav a[aria-current="page"] { border-inline-start-color: var(--accent); }
}