/* ============================================================
   Wspólne style nawigacji - JEDYNE ŹRÓDŁO PRAWDY dla .nav
   ------------------------------------------------------------
   Ładowane przez includes/nav.php (root-absolutny <link>).
   Plik ładuje się PO inline <style> strony, więc nadpisuje
   ewentualne lokalne definicje .nav* i wymusza spójny wygląd
   menu na wszystkich podstronach (index, blog, apps/*, itd.).

   NIE kopiuj stylów .nav do <style> nowych stron - to zbędne,
   ten plik i tak wygra kaskadę. Zmiany wyglądu menu rób TYLKO
   tutaj (pamiętaj o podbiciu ?v=N w includes/nav.php).
   ============================================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 15, 26, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.nav-logo { font-weight: 700; font-size: 1.25rem; color: var(--text-primary); text-decoration: none; }
.nav-logo span { color: var(--accent); }

.nav-links { display: flex; gap: 32px; align-items: center; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; transition: color 0.2s; text-decoration: none; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-links .lang-switch { display: flex; align-items: center; opacity: 0.85; transition: opacity 0.2s, transform 0.2s; }
.nav-links .lang-switch:hover { opacity: 1; transform: scale(1.1); }
.lang-switch .flag-icon { width: 24px; height: 18px; border-radius: 3px; box-shadow: 0 1px 3px rgba(0,0,0,0.3); vertical-align: middle; position: relative; top: 3px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text-primary); transition: 0.3s; }

/* Mobile: menu chowane pod hamburgerem */
@media (max-width: 900px) {
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10, 15, 26, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
        display: none;
        z-index: 99;
    }
    .nav-links.active { display: flex; }
    .nav-toggle { display: flex; }
}