.hero-content {
    width: min(100%, var(--content-max));
    height: 100vh;
    margin: 0 auto;
    padding: calc(var(--header-height) + var(--space-4)) var(--page-pad) calc(var(--rail-height) + var(--space-5));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
}

.hero-title {
    max-width: 13ch;
    margin: 0;
    color: rgba(255, 255, 255, 0.94);
    font-family: var(--font-display);
    font-size: var(--text-title);
    font-weight: 300;
    line-height: 0.86;
    letter-spacing: 0;
    text-transform: none;
    text-shadow: 0 0 48px rgba(255, 255, 255, 0.16);
}

.hero-subtitle {
    margin: var(--space-4) 0 var(--space-6);
    color: var(--color-muted);
    font-size: clamp(1rem, 1.2vw, 1.25rem);
    letter-spacing: 0.38em;
}

.void-link {
    position: relative;
    display: inline-grid;
    grid-template-columns: auto 2.8rem;
    align-items: center;
    gap: 1.25rem;
    min-width: min(19rem, 80vw);
    padding: 0 0 0.95rem;
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.42em;
    text-align: left;
    text-transform: uppercase;
}

.void-link::before,
.void-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    height: 1px;
}

.void-link::before {
    right: 0;
    background: var(--color-line);
}

.void-link::after {
    width: 0;
    background: rgba(255, 255, 255, 0.92);
    transition: width var(--duration) var(--ease-out);
}

.void-link:hover::after {
    width: 100%;
}

.void-link span:last-child {
    justify-self: end;
    font-size: 1rem;
    transition: transform var(--duration-fast);
}

.void-link:hover span:last-child {
    transform: translateX(0.35rem);
}

.singularity-info {
    background: transparent;
    border: 0;
    backdrop-filter: none;
}

.quantum-grid {
    width: min(68vw, 48rem);
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 0.55rem;
}

.quantum-cell {
    aspect-ratio: 1;
    border: 1px solid rgba(255, 255, 255, 0.085);
    background: rgba(255, 255, 255, 0.012);
    transition: background var(--duration-fast), border-color var(--duration-fast), box-shadow var(--duration-fast), transform var(--duration-fast);
}

.quantum-cell:hover,
.quantum-cell.active {
    border-color: rgba(255, 255, 255, 0.48);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 28px rgba(255, 255, 255, 0.12);
    transform: scale(1.04);
}

.echo-zone {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
}

.echo-prompt {
    color: var(--color-faint);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.5em;
    text-transform: uppercase;
}

.echo-ring {
    position: fixed;
    border: 1px solid rgba(255, 255, 255, 0.52);
    border-radius: 50%;
    pointer-events: none;
    animation: echo-expand 2600ms var(--ease-out) forwards;
}

@keyframes echo-expand {
    from {
        opacity: 0.9;
        transform: translate(-50%, -50%) scale(0);
    }
    to {
        opacity: 0;
        transform: translate(-50%, -50%) scale(8);
    }
}

.dissolution-form {
    position: relative;
    width: min(42vw, 30rem);
    aspect-ratio: 1;
    justify-self: center;
}

.dissolution-blob {
    position: absolute;
    inset: 18%;
    border-radius: 50%;
    background:
        radial-gradient(circle at 45% 38%, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.035) 34%, transparent 68%);
    filter: blur(20px);
    animation: blob-morph 12s ease-in-out infinite;
}

@keyframes blob-morph {
    0%, 100% {
        transform: scale(1) rotate(0deg);
        border-radius: 50%;
    }
    50% {
        transform: scale(1.12) rotate(12deg);
        border-radius: 42% 58% 52% 48%;
    }
}

.dissolve-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.62);
    box-shadow: 0 0 14px rgba(255, 255, 255, 0.22);
    animation: particle-drift 8s linear infinite;
}

@keyframes particle-drift {
    from {
        opacity: 0.7;
        transform: translate3d(0, 0, 0) scale(1);
    }
    to {
        opacity: 0;
        transform: translate3d(var(--drift-x), var(--drift-y), 0) scale(0);
    }
}

.final-void-content {
    min-height: 100vh;
    padding: var(--page-pad);
    display: grid;
    place-items: center;
    text-align: center;
}

.void-statement {
    display: grid;
    gap: 0.3rem;
}

.void-line {
    margin: 0;
    color: var(--color-muted);
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 6rem);
    font-weight: 300;
    line-height: 1;
}

.void-emphasis {
    color: var(--color-text);
    font-size: clamp(4rem, 9vw, 12rem);
    font-style: italic;
}

.void-options {
    position: absolute;
    bottom: calc(var(--rail-height) + var(--space-3));
    display: flex;
    gap: var(--space-3);
}

.void-btn {
    min-width: 8rem;
    padding: 0.9rem 1.4rem;
    border: 1px solid var(--color-line);
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.32em;
    text-transform: uppercase;
    transition: color var(--duration-fast), border-color var(--duration-fast), background var(--duration-fast);
}

.void-btn:hover {
    color: var(--color-text);
    border-color: rgba(255, 255, 255, 0.48);
    background: rgba(255, 255, 255, 0.045);
}