/* =============================================
   i18n.css — Language switcher
   ============================================= */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 4px;
    margin-left: 1.5rem;
}
.lang-btn {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-3);
    background: transparent;
    border: none;
    padding: 0.3rem 0.65rem;
    border-radius: 100px;
    cursor: pointer;
    transition: all 0.25s ease;
    text-transform: uppercase;
    line-height: 1;
}
.lang-btn:hover { color: var(--text-2); background: rgba(255,255,255,0.06); }
.lang-btn.active { background: var(--grad-main); color: #fff; }
.main-nav { display: flex; align-items: center; }
@media (max-width: 768px) {
    .main-nav { display: none; }
    .main-nav.is-open { display: flex; }
}

/* =============================================
   THEME TOGGLE BUTTON
   ============================================= */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-2);
    cursor: pointer;
    font-size: 1rem;
    margin-left: 0.5rem;
    transition: all 0.3s ease;
    flex-shrink: 0;
}
.theme-toggle:hover {
    border-color: var(--blue);
    color: var(--blue);
}
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: inline; }

[data-theme="light"] .theme-toggle .icon-sun  { display: inline; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }