*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
body {
    font-family: 'Space Grotesk', 'IBM Plex Sans', system-ui, sans-serif;
    color: #E2E8F0;
    line-height: 1.6;
    background: #020617;
}

.gx-topbar {
    background: #0F172A;
    border-bottom: 1px solid #1E293B;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 900;
}
.gx-topbar-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 3vw, 2rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 3.5rem;
}
.gx-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: #F1F5F9;
    letter-spacing: -0.02em;
}
.gx-brand-icon {
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, #6366F1, #818CF8);
    border-radius: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 0.875rem;
    color: #fff;
}
.gx-nav {
    display: flex;
    align-items: center;
    gap: 0;
    list-style: none;
}
.gx-nav-link {
    color: #A0AEC0;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 1rem 0.875rem;
    display: inline-flex;
    align-items: center;
    min-height: 3.5rem;
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
    white-space: nowrap;
}
.gx-nav-link:hover,
.gx-nav-link--active {
    color: #A5B4FC;
    border-bottom-color: #6366F1;
}
.gx-cta {
    background: #6366F1;
    color: #fff;
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
    min-height: 2.5rem;
    min-width: 2.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}
.gx-cta:hover { background: #4F46E5; }
.gx-cta svg { width: 1rem; height: 1rem; }

@media (max-width: 768px) {
    .gx-nav { display: none; }
    .gx-hamburger { display: flex; }
}
@media (min-width: 769px) {
    .gx-hamburger { display: none; }
}
.gx-hamburger {
    background: none;
    border: 1px solid #334155;
    border-radius: 0.375rem;
    color: #A0AEC0;
    padding: 0.5rem;
    cursor: pointer;
    min-width: 2.75rem;
    min-height: 2.75rem;
    align-items: center;
    justify-content: center;
}
.gx-hamburger svg { width: 1.25rem; height: 1.25rem; }
.gx-mobile-menu {
    display: none;
    background: #0F172A;
    border-bottom: 1px solid #1E293B;
    padding: 0.5rem 0;
}
.gx-mobile-menu.gx-open { display: block; }
.gx-mobile-menu a {
    display: block;
    padding: 0.75rem clamp(1rem, 3vw, 2rem);
    color: #A0AEC0;
    font-size: 0.9375rem;
    border-left: 3px solid transparent;
}
.gx-mobile-menu a:hover,
.gx-mobile-menu a.gx-nav-link--active {
    color: #A5B4FC;
    border-left-color: #6366F1;
    background: #1E293B;
}