/* ─── NAVBAR ─────────────────────────────── */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    transition: background .3s, box-shadow .3s;
}
.nav.scrolled {
    background: rgba(255, 255, 255, 0.649);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 rgba(0,0,0,.08);
}
.nav-inner {
    max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad);
    display: flex; align-items: center; justify-content: space-between;
    height: 72px;
}
.nav-brand {
    display: flex; align-items: center; gap: .75rem;
    font-family: var(--font-display); font-weight: 800; font-size: 1.1rem;
    color: var(--white);
    transition: color .3s;
}
.nav.scrolled .nav-brand { color: var(--dark); }
.brand-mark {
    width: 70px;
    position: relative;
}

.logo-dark,
.logo-light {
    width: 100%;
    display: block;
    transition: opacity 0.3s ease;
}

.logo-light {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
}

.logo-dark {
    opacity: 1;
    position: relative;
}

.nav.scrolled .logo-light { opacity: 1; }
.nav.scrolled .logo-dark  { opacity: 0; }

.nav-links { display: flex; align-items: center; gap: .25rem; }
.nav-link {
    padding: .5rem .85rem;
    font-weight: 500; font-size: .9rem;
    color: rgba(255,255,255,.85);
    border-radius: var(--r-sm);
    transition: color .2s, background .2s;
}
.nav-link:hover { color: var(--white); background: rgba(255,255,255,.1); }
.nav.scrolled .nav-link { color: var(--mid); }
.nav.scrolled .nav-link:hover { color: var(--dark); background: var(--light); }

.nav-cta {
    display: inline-flex; align-items: center;
    padding: .55rem 1.25rem;
    background: var(--red); color: var(--white) !important;
    font-family: var(--font-display); font-weight: 700; font-size: .85rem;
    border-radius: var(--r-sm);
    margin-left: .5rem;
    transition: background .2s, transform .15s;
}
.nav-cta:hover { background: var(--red-dark); transform: translateY(-1px); }

.nav-toggle {
    display: none; flex-direction: column; gap: 5px;
    padding: .5rem;
}
.nav-toggle span {
    display: block; width: 22px; height: 2px;
    background: var(--white); border-radius: 99px;
    transition: background .3s;
}
.nav.scrolled .nav-toggle span { background: var(--dark); }

/* Mobile nav */
.nav-mobile {
    display: none;
    flex-direction: column;
    padding: 1rem var(--pad) 1.5rem;
    background: var(--white);
    border-top: 1px solid var(--light-2);
    gap: .25rem;
}
.nav-mobile.open { display: flex; }
.nav-mobile .nav-link { color: var(--mid); padding: .6rem .75rem; }
.nav-mobile .nav-link:hover { color: var(--dark); }
.nav-mobile .nav-cta {
    margin: .5rem 0 0; width: fit-content;
    background: var(--red); color: var(--white) !important;
    padding: .65rem 1.5rem;
}

@media (max-width: 860px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
}