html {
    background: #000;
    color-scheme: dark;
}

body {
    min-width: 320px;
    min-height: 100vh;
    overflow: hidden;
    background: var(--color-void);
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: var(--text-base);
    font-weight: 400;
    cursor: none;
    -webkit-font-smoothing: antialiased;
    text-rendering: geometricPrecision;
}

button,
a {
    color: inherit;
}

button:focus-visible,
a:focus-visible {
    outline: 1px solid rgba(255, 255, 255, 0.82);
    outline-offset: 6px;
}

.museum {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background:
        radial-gradient(circle at 72% 42%, rgba(255, 255, 255, 0.05), transparent 28rem),
        linear-gradient(180deg, #030303 0%, #000 58%, #000 100%);
}

.rooms-container,
.room,
.room-background,
.room-canvas {
    position: absolute;
    inset: 0;
}

.room {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    overflow: hidden;
    transition: opacity 900ms var(--ease-out), visibility 900ms var(--ease-out);
}

.room.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.room-background {
    z-index: var(--z-canvas);
}

.room-canvas,
.shader-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.room-content,
.hero-content,
.final-void-content {
    position: relative;
    z-index: var(--z-ui);
}

.room-content {
    min-height: 100vh;
    width: min(100%, var(--content-max));
    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: center;
    gap: var(--space-5);
}

.room-content--split {
    display: grid;
    grid-template-columns: minmax(18rem, 0.36fr) 1fr;
    align-items: center;
}

.room-text {
    max-width: 34rem;
}

.room-number {
    display: block;
    margin-bottom: var(--space-3);
    color: var(--color-faint);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.42em;
    text-transform: uppercase;
}

.room-title {
    margin: 0;
    color: var(--color-text);
    font-family: var(--font-display);
    font-size: var(--text-room);
    font-weight: 300;
    line-height: 0.92;
    letter-spacing: 0;
}

.room-description {
    max-width: 31rem;
    margin: var(--space-4) 0 0;
    color: var(--color-muted);
    font-size: var(--text-lg);
    line-height: 1.7;
}

.room-interactive {
    position: relative;
    min-height: 20rem;
}

.transition-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-overlay);
    pointer-events: none;
    opacity: 0;
    background:
        radial-gradient(circle at 50% 50%, transparent 0 12%, rgba(255, 255, 255, 0.08) 12.3%, transparent 14%),
        #000;
    transition: opacity var(--duration) var(--ease-out);
}

.transition-overlay.active {
    opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 1ms !important;
    }
}