/* ================================
   LavinLab — Navigation & Footer
   ================================ */

/* NAV */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 200;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    background: rgba(9, 12, 10, 0.9);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
}

.nav::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--orange-dim), transparent);
    opacity: 0.5;
}

/* Logo */
.nav__logo {
    font-family: var(--font-display);
    font-size: 1.9rem;
    letter-spacing: 0.1em;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 2px;
    transition: opacity 0.2s;
}
.nav__logo:hover { opacity: 0.8; }
.nav__logo .lo { color: var(--orange); }
.nav__logo .bracket { color: var(--green); font-size: 1.4rem; }

/* Links */
.nav__links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav__links a {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    transition: color 0.2s;
    position: relative;
}

.nav__links a::after {
    content: '';
    position: absolute;
    bottom: -3px; left: 0;
    width: 0; height: 1px;
    background: var(--green);
    transition: width 0.25s;
}

.nav__links a:hover { color: var(--green); }
.nav__links a:hover::after { width: 100%; }

.nav__links a.active { color: var(--green); }
.nav__links a.active::after { width: 100%; }

/* CTA Button */
.nav__cta {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 10px 24px;
    background: var(--orange);
    color: #fff;
    transition: background 0.2s, transform 0.15s;
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.nav__cta:hover {
    background: var(--orange-dim);
    transform: translateY(-1px);
}

/* Hamburger */
.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}

.nav__burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: all 0.3s;
}

.nav__burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.nav__mobile {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 28px 32px;
    flex-direction: column;
    gap: 20px;
    z-index: 190;
}

.nav__mobile.open { display: flex; }

.nav__mobile a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text2);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: color 0.2s;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.nav__mobile a:last-child { border-bottom: none; }
.nav__mobile a:hover { color: var(--orange); }

/* ================================
   Footer
   ================================ */

.footer {
    padding: 40px 60px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: var(--bg2);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green-dim), transparent);
    opacity: 0.4;
}

.footer__logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.1em;
}

.footer__logo .lo { color: var(--orange); }
.footer__logo .bracket { color: var(--green); }

.footer__center {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer__center a {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    transition: color 0.2s;
}

.footer__center a:hover { color: var(--green); }

.footer__copy {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--muted);
    letter-spacing: 0.08em;
    text-align: right;
}

/* ================================
   Responsive
   ================================ */

@media (max-width: 900px) {
    .nav { padding: 0 24px; }
    .nav__links, .nav__cta { display: none; }
    .nav__burger { display: flex; }

    .footer {
        flex-direction: column;
        text-align: center;
        padding: 32px 24px;
        gap: 16px;
    }
    .footer__copy { text-align: center; }
}

/* ---- Lang Switch ---- */
@media (max-width: 900px) {
    .lang-switch { display: flex; }
}