/* ═══════════════════════════════════════════════════════════════
   nav.css — Fixed glass navigation
   ═══════════════════════════════════════════════════════════════ */

nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: #0a1628;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 52px;
    height: var(--nav-height);
    transition: box-shadow 0.3s;
}

nav.is-scrolled {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

/* ─── Logo ──────────────────────────────────────────────────── */
.logo-wrap {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-img {
    height: 48px;
    width: auto;
}

/* ─── Nav Links ─────────────────────────────────────────────── */
.nav-links {
    display: flex;
    gap: 2px;
    align-items: center;
    flex-wrap: nowrap;
}

.nav-links a {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--muted);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
    cursor: pointer;
    white-space: nowrap;
}

.nav-links a:hover {
    color: var(--white);
    background: rgba(26, 127, 212, 0.12);
}

.nav-links a.active {
    color: var(--blue-light);
}

/* ─── Demo / CTA button in nav ──────────────────────────────── */
.nav-cta {
    background: linear-gradient(135deg, var(--orange), var(--orange-light)) !important;
    color: #fff !important;
    border-radius: 6px !important;
    padding: 9px 22px !important;
    font-weight: 700 !important;
    letter-spacing: 0.03em !important;
    box-shadow: 0 4px 14px rgba(16, 199, 122, 0.3) !important;
}

.nav-cta:hover {
    opacity: 0.9 !important;
    transform: translateY(-1px) !important;
    background: rgba(26, 127, 212, 0.12) !important;
}

/* ─── Hamburger (mobile) ────────────────────────────────────── */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--muted);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}
.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
    nav {
        padding: 0 16px;
        gap: 8px;
    }

    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        position: absolute;
        top: var(--nav-height);
        left: 0; right: 0;
        background: #0d1f3c;
        border-bottom: 1px solid var(--border);
        padding: 16px;
        gap: 4px;
    }

    .nav-links.is-open {
        display: flex;
    }

    .nav-links a {
        font-size: 0.85rem;
        padding: 10px 14px;
        width: 100%;
    }

    .nav-hidden-mobile {
        display: none;
    }
}

@media (max-width: 600px) {
    .nav-links a {
        font-size: 0.82rem;
        padding: 8px 12px;
    }
}