/* ======== NAV ======== */
nav {
position: fixed;
top: 16px; left: 16px; right: 16px;
z-index: 50;
padding: 12px 20px 12px 16px;
display: flex;
justify-content: space-between;
align-items: center;
background: rgba(28, 28, 28, 0.7);
backdrop-filter: blur(20px) saturate(180%);
-webkit-backdrop-filter: blur(20px) saturate(180%);
border: 1px solid var(--rule);
border-radius: 100px;
max-width: 1200px;
margin: 0 auto;
}

.nav-brand {
display: flex;
align-items: center;
gap: 10px;
color: var(--text);
text-decoration: none;
font-weight: 700;
font-size: 18px;
letter-spacing: -0.02em;
}

.nav-brand img {
width: 32px;
height: 32px;
}

.nav-lang {
display: flex;
align-items: center;
gap: 6px;
margin-right: 12px;
font-size: 12px;
font-weight: 600;
letter-spacing: 0.05em;
}

.lang-link {
color: var(--text-mute);
text-decoration: none;
padding: 4px 6px;
border-radius: 6px;
transition: color 0.2s;
}
.lang-link.active { color: var(--accent); }
.lang-link:hover { color: var(--text); }
.lang-sep { color: var(--rule); }

.nav-cta {
display: inline-flex;
align-items: center;
gap: 8px;
background: var(--accent-soft);
color: var(--accent);
padding: 8px 16px;
border-radius: 100px;
text-decoration: none;
font-weight: 600;
font-size: 14px;
border: 1px solid var(--accent-border);
transition: all 0.2s ease;
}

.nav-cta:hover {
background: var(--accent);
color: #fff;
}

.nav-back {
display: inline-flex;
align-items: center;
gap: 8px;
background: transparent;
color: var(--text-soft);
padding: 8px 16px;
border-radius: 100px;
text-decoration: none;
font-weight: 500;
font-size: 14px;
border: 1px solid var(--rule);
transition: all 0.2s ease;
}

.nav-back:hover {
background: var(--bg-elevated);
color: var(--text);
border-color: rgba(255, 255, 255, 0.2);
}