/*
 * site-nav.css — mobile burger + header dropdown for Vector landing pages.
 *
 * Companion: site-nav.js handles the toggle state.
 * Relies on the same CSS tokens (--ink, --paper, --line, --nav-hover-bg, etc.)
 * already declared :root-side in each page's inline <style>.
 */

/* Burger button — hidden by default, shown only on mobile */
.nav-toggle {
    display: none;
    position: relative;
    z-index: 210;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    background: transparent;
    border: 1px solid var(--line, rgba(26, 26, 26, 0.12));
    border-radius: 12px;
    color: var(--ink, #1a1a1a);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
    background: var(--nav-hover-bg, rgba(26, 26, 26, 0.06));
}

.nav-toggle:focus-visible {
    outline: 2px solid var(--ink, #1a1a1a);
    outline-offset: 2px;
}

.nav-toggle svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    stroke-linecap: round;
}

.nav-toggle .nav-toggle-bar {
    transition: transform 200ms ease, opacity 150ms ease;
    transform-origin: center;
}

@media (max-width: 780px) {
    .nav-toggle {
        display: inline-flex;
    }

    /* Mobile dropdown anchored under the sticky header.
       Overrides the page's inline `.nav-links { display: none }` rule. */
    .nav-links {
        display: flex !important;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 2px;
        padding: 12px 16px 16px;
        background: var(--paper, #fafaf8);
        border-top: 1px solid var(--line, rgba(26, 26, 26, 0.08));
        border-bottom: 1px solid var(--line, rgba(26, 26, 26, 0.08));
        box-shadow: 0 16px 32px rgba(0, 0, 0, 0.10);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-6px);
        pointer-events: none;
        transition: opacity 180ms ease, transform 220ms ease, visibility 0s linear 220ms;
        z-index: 99;
    }

    .nav-link,
    .nav-cta {
        width: 100%;
        text-align: left;
        font-size: 1rem;
        padding: 12px 14px;
        border-radius: 10px;
    }

    .nav-cta {
        margin-top: 8px;
        text-align: center;
        justify-content: center;
    }

    body[data-mobile-nav-open] .nav-links {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
        transition: opacity 180ms ease, transform 220ms ease, visibility 0s linear 0s;
    }

    body[data-mobile-nav-open] .nav-toggle .nav-toggle-bar-top {
        transform: translateY(5px) rotate(45deg);
    }

    body[data-mobile-nav-open] .nav-toggle .nav-toggle-bar-mid {
        opacity: 0;
    }

    body[data-mobile-nav-open] .nav-toggle .nav-toggle-bar-bot {
        transform: translateY(-5px) rotate(-45deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    .nav-links,
    .nav-toggle .nav-toggle-bar {
        transition: none !important;
    }
}