/*
 Theme Name:   Site Navigation
 Template:     twentytwentyfive-child
 Version:      1.0
 Shared top nav, included on every page template. Self-contained styles
 so it looks consistent regardless of the host page's own theme.
*/

.site-nav {
    --sn-bg: rgba(5, 5, 5, 0.88);
    --sn-surface: #111111;
    --sn-border: rgba(255, 255, 255, 0.08);
    --sn-text: #FFFFFF;
    --sn-text-secondary: #999999;
    --sn-accent: #FFB000;
    --sn-radius: 12px;

    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--sn-bg);
    border-bottom: 1px solid var(--sn-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
}

.site-nav *,
.site-nav *::before,
.site-nav *::after {
    box-sizing: border-box;
}

.site-nav__inner {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 60px;
}

/* Brand */
.site-nav__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--sn-text);
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.site-nav__mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 9px;
    background: rgba(255, 176, 0, 0.12);
    color: var(--sn-accent);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.5px;
}

/* Hamburger toggle (mobile) */
.site-nav__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--sn-border);
    border-radius: 10px;
    cursor: pointer;
    flex-shrink: 0;
}

.site-nav__toggle-bar {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--sn-text);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(2) {
    opacity: 0;
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Menu — mobile: collapsible panel below the bar */
.site-nav__menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    background: var(--sn-surface);
    border-bottom: 1px solid var(--sn-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
}

.site-nav__menu.is-open {
    max-height: 480px;
}

.site-nav__link {
    display: block;
    width: 100%;
    padding: 14px 20px;
    background: transparent;
    border: none;
    color: var(--sn-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    font-family: inherit;
    text-align: left;
    cursor: pointer;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
    color: var(--sn-accent);
}

.site-nav__link[aria-current="page"] {
    color: var(--sn-accent);
}

.site-nav__dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-nav__caret {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.site-nav__dropdown-toggle[aria-expanded="true"] .site-nav__caret {
    transform: rotate(180deg);
}

.site-nav__dropdown-menu {
    display: flex;
    flex-direction: column;
    max-height: 0;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.02);
    transition: max-height 0.25s ease;
}

.site-nav__dropdown-menu.is-open {
    max-height: 320px;
}

.site-nav__dropdown-link {
    padding: 12px 20px 12px 34px;
    color: var(--sn-text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
}

.site-nav__dropdown-link:hover,
.site-nav__dropdown-link:focus-visible {
    color: var(--sn-accent);
}

.site-nav__dropdown-link[aria-current="page"] {
    color: var(--sn-accent);
}

.site-nav a:focus-visible,
.site-nav button:focus-visible {
    outline: 2px solid var(--sn-accent);
    outline-offset: -2px;
}

/* ── Desktop ── */
@media (min-width: 720px) {
    .site-nav__toggle {
        display: none;
    }

    .site-nav__menu {
        position: static;
        flex-direction: row;
        align-items: center;
        gap: 4px;
        max-height: none;
        overflow: visible;
        background: transparent;
        border-bottom: none;
        transition: none;
    }

    .site-nav__link {
        width: auto;
        padding: 8px 14px;
        border-radius: 8px;
    }

    .site-nav__link:hover,
    .site-nav__link:focus-visible {
        background: rgba(255, 255, 255, 0.05);
    }

    .site-nav__dropdown {
        position: relative;
    }

    .site-nav__dropdown-menu {
        position: absolute;
        top: calc(100% + 6px);
        left: 0;
        min-width: 190px;
        max-height: none;
        overflow: hidden;
        background: var(--sn-surface);
        border: 1px solid var(--sn-border);
        border-radius: var(--sn-radius);
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
        padding: 6px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-6px);
        transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
    }

    .site-nav__dropdown-menu.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .site-nav__dropdown-link {
        padding: 10px 12px;
        border-radius: 8px;
    }

    .site-nav__dropdown-link:hover,
    .site-nav__dropdown-link:focus-visible {
        background: rgba(255, 176, 0, 0.08);
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-nav *,
    .site-nav *::before,
    .site-nav *::after {
        transition: none !important;
    }
}