/* ==========================================================================
   Header
   ========================================================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 90;
    background: rgba(var(--surface-rgb), .96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow .2s;
}
.header.scrolled { box-shadow: var(--shadow-sm); }

.header-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand-logo {
    height: 44px;
    width: auto;
    transition: transform .25s;
}
.brand:hover .brand-logo { transform: scale(1.03); }

.nav { display: flex; gap: 0; flex-wrap: nowrap; }
.nav a {
    padding: 8px 10px;
    font-size: .82rem;
    font-weight: 500;
    color: var(--ink-2);
    border-radius: var(--radius);
    transition: color .2s, background .2s;
    white-space: nowrap;
}
.nav a:hover {
    color: var(--ink);
    background: var(--bg-2);
}

.header-actions { display: flex; align-items: center; gap: 12px; }
.header-phone {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    color: var(--ink);
    font-size: .85rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: background .2s;
    white-space: nowrap;
    flex-shrink: 0;
}
.header-phone svg { width: 16px; height: 16px; color: var(--accent); }
.header-phone:hover { background: var(--bg-2); }

.menu-toggle {
    display: none;
    width: 40px; height: 40px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.menu-toggle span {
    display: block;
    width: 18px; height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: .2s;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.lang-header { display: none; background: var(--bg-2); }
.lang-header .lang-btn { color: var(--ink-2); }
.lang-header .lang-btn.active { background: var(--accent); color: var(--on-accent); }
.nav-footer { display: none; }
.nav-overlay { display: none; }