.nav {
    position: sticky; top: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 40px;
    height: 64px;
    background: rgba(10,10,12,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-dim);
}

.nav-logo {
    display: flex; align-items: center; gap: 12px;
    text-decoration: none;
}

.nav-logo-mark {
    width: 36px; height: 36px;
    background: var(--red);
    clip-path: polygon(50% 0%, 100% 30%, 85% 100%, 15% 100%, 0% 30%);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-d); font-weight: 700; font-size: 13px;
    color: #fff; letter-spacing: 0;
    flex-shrink: 0;
}

.nav-logo-text {
    font-family: var(--font-d);
    font-size: 20px; font-weight: 700;
    color: var(--white); letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-logo-text span { color: var(--red); }

.nav-links {
    display: flex; gap: 32px; list-style: none;
}

.nav-links a {
    text-decoration: none;
    font-family: var(--font-d); font-size: 15px; font-weight: 600;
    color: var(--chrome-dim); letter-spacing: 1.5px; text-transform: uppercase;
    transition: color .2s;
}

.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a.active { color: var(--red); }

.nav-right {
    display: flex; align-items: center; gap: 16px;
}

.nav-cart {
    position: relative;
    background: none; border: 1px solid var(--border-dim);
    border-radius: var(--r); padding: 8px 14px;
    color: var(--chrome); cursor: pointer;
    font-family: var(--font-d); font-size: 14px; font-weight: 600;
    letter-spacing: 1px; text-transform: uppercase;
    transition: border-color .2s, color .2s;
    display: flex; align-items: center; gap: 8px;
}

.nav-cart:hover { border-color: var(--red); color: var(--white); }

.cart-count {
    background: var(--red); color: #fff;
    font-size: 10px; font-weight: 700;
    border-radius: 50%; width: 18px; height: 18px;
    display: flex; align-items: center; justify-content: center;
    position: absolute; top: -6px; right: -6px;
}

.btn-login {
    background: var(--red);
    border: none; border-radius: var(--r);
    padding: 9px 20px;
    color: #fff; cursor: pointer;
    font-family: var(--font-d); font-size: 14px; font-weight: 700;
    letter-spacing: 1.5px; text-transform: uppercase;
    transition: background .2s, box-shadow .2s;
}

.btn-login:hover { background: var(--red-hot); box-shadow: var(--glow); }

.nav-user {
    display: flex; align-items: center; gap: 10px;
    background: none; border: 1px solid var(--border-dim);
    border-radius: var(--r); padding: 7px 14px;
    cursor: pointer; color: var(--chrome);
    font-family: var(--font-d); font-size: 14px; font-weight: 600;
    letter-spacing: 1px; text-transform: uppercase;
    transition: border-color .2s, color .2s;
}

.nav-user:hover { border-color: var(--chrome); color: var(--white); }

.nav-avatar {
    width: 24px; height: 24px; border-radius: 50%;
    background: var(--red); display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 700; color: #fff;
}