/* site-nav.css - общо меню за всички страници на Леговището. */

.site-header a:focus-visible,
.site-header button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}
.nav-mobile a:focus-visible,
.nav-mobile button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid transparent;
    background: transparent;
    transition: background-color var(--transition-base), backdrop-filter var(--transition-base), border-color var(--transition-base);
}
.site-header.is-scrolled {
    background: rgba(19, 21, 26, .82);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom-color: var(--color-border);
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-5);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    color: var(--color-text);
    font-family: var(--font-heading);
    font-weight: var(--font-heading-weight);
    font-size: var(--text-base);
    letter-spacing: .03em;
    white-space: nowrap;
}
.nav-brand img { width: 26px; height: 26px; border-radius: var(--radius-sm); }

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex: 1;
}

.nav-link {
    position: relative;
    color: var(--color-text-muted);
    text-decoration: none;
    background: none;
    border: none;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    cursor: pointer;
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
}
.nav-link:hover, .nav-link:focus-visible { color: var(--color-accent); }
.nav-link.is-current { color: var(--color-text); }
.nav-link.is-current::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 2px;
    background: var(--color-accent);
    box-shadow: 0 0 6px var(--color-accent);
    border-radius: var(--radius-pill);
}

/* ── Връзки, които отварят в нов прозорец (архив/живи подсайтове) ──── */
.nav-external-mark {
    font-size: .85em;
    opacity: .7;
    margin-left: .15em;
}

/* ── Глутницата (dropdown, desktop) ───────────────────── */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger {
    display: inline-flex;
    align-items: center;
    gap: .3em;
}
.nav-dropdown-trigger::after {
    content: "▾";
    font-size: .8em;
    transition: transform var(--transition-fast);
}
.nav-dropdown.is-open .nav-dropdown-trigger::after { transform: rotate(180deg); }

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-3));
    left: 0;
    min-width: 200px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}
.nav-dropdown.is-open .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.nav-dropdown-menu a,
.nav-dropdown-locked {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
}
.nav-dropdown-menu a:hover, .nav-dropdown-menu a:focus-visible {
    background: var(--color-surface-2);
    color: var(--color-accent);
}
.nav-dropdown-sep {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-2) var(--space-1);
}
.nav-tag-sm {
    font-size: .65rem;
    padding: .15rem .4rem;
}

/* ── CTA ───────────────────────────────────────────────── */
.nav-cta {
    color: var(--color-bg);
    background: var(--color-accent);
    font-weight: 600;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    text-decoration: none;
    white-space: nowrap;
    transition: filter var(--transition-fast);
}
.nav-cta:hover, .nav-cta:focus-visible { filter: brightness(1.1); }

/* ── Хамбургер (mobile trigger) ────────────────────────── */
.nav-burger {
    display: none;
    width: 40px; height: 40px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
}
.nav-burger span {
    width: 20px; height: 2px;
    background: var(--color-text);
    border-radius: var(--radius-pill);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ── Mobile fullscreen меню ────────────────────────────── */
.nav-mobile {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(19, 21, 26, .97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    padding: var(--space-6) var(--space-5);
    gap: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
    overflow-y: auto;
}
.nav-mobile.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.nav-mobile-close {
    align-self: flex-end;
    width: 40px; height: 40px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: var(--text-lg);
    cursor: pointer;
    margin-bottom: var(--space-4);
}
.nav-mobile-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    color: var(--color-text);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    padding: var(--space-3) var(--space-2);
    border-bottom: 1px solid var(--color-border);
}
.nav-mobile-link.is-current { color: var(--color-accent); }
.nav-mobile-locked { color: var(--color-text-muted); }
.nav-mobile-sep {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--color-text-muted);
    margin: var(--space-4) 0 var(--space-1);
}
.nav-mobile-cta {
    margin-top: auto;
    text-align: center;
    color: var(--color-bg);
    background: var(--color-accent);
    font-weight: 600;
    padding: var(--space-4);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: var(--text-base);
}

body.nav-scroll-lock { overflow: hidden; }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 767px) {
    .nav-links, .nav-cta { display: none; }
    .nav-burger { display: flex; }
    .nav-brand-text { font-size: var(--text-sm); }
}
@media (max-width: 340px) {
    .nav-brand-text { display: none; }
}
@media (min-width: 768px) {
    .nav-mobile, .nav-burger { display: none; }
}