.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 96px 0 60px;
    background: var(--ink-900);
    color: var(--text-on-dark);
    overflow: hidden;
}

.hero-grid-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(to right, var(--ink-grid) 1px, transparent 1px),
        linear-gradient(to bottom, var(--ink-grid) 1px, transparent 1px);
    background-size: 64px 64px;
    opacity: 0.06;
    -webkit-mask-image: radial-gradient(70% 70% at 60% 45%, #000, transparent 92%);
    mask-image: radial-gradient(70% 70% at 60% 45%, #000, transparent 92%);
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 52% 48%;
    align-items: center;
    gap: 2.5rem;
}

.hero-text h1 { margin: 1.4rem 0; max-width: 16ch; color: var(--text-on-dark); }
.hero-text h1 em { color: var(--violet-400); }

.hero-sub {
    font-size: clamp(1.0625rem, 1.4vw, 1.25rem);
    line-height: 1.6;
    color: var(--text-on-dark-soft);
    max-width: 46ch;
}
.hero-sub-2 {
    margin-top: 1rem;
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--text-on-dark-soft);
    max-width: 50ch;
}

.hero-cta {
    margin-top: 2.2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 420px;
}
.hero-halo {
    position: absolute;
    width: 70%;
    height: 70%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(91, 52, 214, 0.18), transparent 70%);
    filter: blur(10px);
    pointer-events: none;
}
.tesseract-canvas {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    max-width: 460px;
    aspect-ratio: 1;
    display: block;
}

.hero-scroll {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    align-self: center;
    margin-top: 2.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-on-dark-faint);
}
.hero-scroll svg { width: 16px; height: 16px; animation: scroll-bob 2s var(--ease) infinite; }

@keyframes scroll-bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

@media (prefers-reduced-motion: reduce) {
    .hero-scroll svg { animation: none; }
}

@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; gap: 1rem; }
    .hero-text h1 { max-width: 100%; }
    .hero-visual { min-height: 320px; order: 2; }
    .tesseract-canvas { max-width: 320px; }
}

@media (max-width: 768px) {
    .hero { min-height: auto; padding: 110px 0 56px; }
    .hero-scroll { display: none; }
}