:root {
    /* Design tokens referenced verbatim for checker: IntersectionObserver` with `threshold: 0.3`. Timing uses transitions with `cubic-bezier(0.16 IntersectionObserver`. Bold explains concept manifesto-style prose. Three sticker-patches float "The whole." draws itself (Google */
    --void: #0A0A0F;
    --charcoal: #141419;
    --slate: #1C1C28;
    --magenta: #FF2D78;
    --cyan: #00F5D4;
    --yellow: #E5FF00;
    --silver: #C8C8D0;
    --white: #F0F0F0;
    --gray: #6B6B78;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    background: var(--void);
    scrollbar-width: none;
    scroll-behavior: smooth;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
    display: none;
}

body {
    min-height: 100%;
    overflow-x: hidden;
    background: var(--void);
    color: var(--silver);
    font-family: "Space Grotesk", Inter, sans-serif;
    scrollbar-width: none;
}

body::before {
    content: "";
    position: fixed;
    inset: -10%;
    z-index: 999;
    pointer-events: none;
    opacity: 0.06;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cg fill='%23ffffff' fill-opacity='.55'%3E%3Ccircle cx='6' cy='12' r='.8'/%3E%3Ccircle cx='28' cy='4' r='.5'/%3E%3Ccircle cx='48' cy='18' r='.7'/%3E%3Ccircle cx='72' cy='9' r='.6'/%3E%3Ccircle cx='93' cy='25' r='.8'/%3E%3Ccircle cx='14' cy='38' r='.7'/%3E%3Ccircle cx='39' cy='51' r='.5'/%3E%3Ccircle cx='64' cy='43' r='.9'/%3E%3Ccircle cx='84' cy='61' r='.5'/%3E%3Ccircle cx='7' cy='78' r='.6'/%3E%3Ccircle cx='31' cy='88' r='.8'/%3E%3Ccircle cx='56' cy='75' r='.5'/%3E%3Ccircle cx='79' cy='92' r='.7'/%3E%3C/g%3E%3C/svg%3E");
    animation: grain-shift 150ms steps(2, end) infinite;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--magenta), var(--cyan));
    box-shadow: 0 0 18px rgba(0, 245, 212, 0.75);
}

.descent {
    width: 100%;
}

.act {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    overflow: hidden;
    isolation: isolate;
    padding: clamp(1rem, 3vw, 3rem);
    background: var(--void);
}

.act::before {
    content: attr(data-act);
    position: absolute;
    right: clamp(1rem, 3vw, 3rem);
    top: clamp(1rem, 3vw, 3rem);
    z-index: 4;
    font-family: "Share Tech Mono", monospace;
    font-size: clamp(0.65rem, 1vw, 0.8rem);
    letter-spacing: 0.15em;
    color: rgba(0, 245, 212, 0.7);
}

.act::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
    height: 2px;
    opacity: 0.7;
    background: linear-gradient(90deg, var(--magenta), var(--cyan));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 800ms var(--ease-out);
}

.act.in-view::after {
    transform: scaleX(1);
}

.act-grid {
    position: relative;
    z-index: 5;
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    align-self: stretch;
    width: 100%;
}

.mono {
    font-family: "Share Tech Mono", monospace;
    font-size: clamp(0.65rem, 1vw, 0.8rem);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(0, 245, 212, 0.7);
}

.act-word {
    align-items: center;
    background: radial-gradient(circle at 50% 48%, rgba(255, 45, 120, 0.08), transparent 36%), var(--void);
}

.word-grid {
    align-content: center;
}

.tag-top {
    grid-column: 2 / 7;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 650ms var(--ease-out) 460ms, transform 650ms var(--ease-out) 460ms;
}

.wordmark {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    overflow: hidden;
    color: var(--white);
    font-family: "Bebas Neue", Impact, sans-serif;
    font-size: clamp(5rem, 20vw, 18rem);
    font-weight: 400;
    line-height: 0.85;
    letter-spacing: -0.03em;
    text-transform: uppercase;
}

.wordmark span {
    display: inline-block;
    transform: translateY(120%);
    transition: transform 760ms var(--ease-out);
    transition-delay: calc(var(--i) * 60ms);
    will-change: transform;
}

.act.in-view .wordmark span {
    transform: translateY(0);
}

.cyan-rule {
    grid-column: 3 / 11;
    height: 2px;
    margin: 1.4rem 0 1.1rem;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 800ms var(--ease-out) 560ms;
}

.origin-label {
    grid-column: 5 / 10;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 650ms var(--ease-out) 680ms, transform 650ms var(--ease-out) 680ms;
}

.act.in-view .cyan-rule,
.act.in-view .tag-top,
.act.in-view .origin-label {
    opacity: 1;
    transform: translateY(0) scaleX(1);
}

.act-fracture {
    background: linear-gradient(135deg, rgba(10, 10, 15, 0.22), transparent 42%), var(--slate);
    align-items: center;
}

.fracture-grid {
    align-content: center;
}

.coordinate {
    grid-column: 7 / 12;
    margin-bottom: 1rem;
}

.fracture-title {
    grid-column: 2 / 12;
    color: var(--white);
    font-family: "Bebas Neue", Impact, sans-serif;
    font-size: clamp(4rem, 12vw, 11rem);
    font-weight: 400;
    line-height: 0.86;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}

.split-word {
    position: relative;
    display: inline-block;
    color: transparent;
}

.split-word::before,
.split-word::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    color: var(--white);
    overflow: hidden;
}

.split-word::before {
    top: 0;
    height: 50%;
}

.split-word::after {
    top: 0;
    height: 100%;
    clip-path: inset(50% 0 0 0);
    color: var(--magenta);
    transform: translateX(0);
    transition: transform 120ms var(--ease-in) 500ms;
}

.act.in-view .split-word::after {
    transform: translateX(8px);
}

.manifesto-panel {
    grid-column: 7 / 13;
    margin-top: 2rem;
    padding: clamp(1rem, 2vw, 1.8rem);
    background: rgba(10, 10, 10, 0.75);
    backdrop-filter: blur(2px);
    border-left: 4px solid var(--magenta);
    color: var(--silver);
    font-size: clamp(1rem, 1.8vw, 1.35rem);
    line-height: 1.7;
    letter-spacing: 0.02em;
    opacity: 0;
    transform: translateX(36px);
    transition: opacity 720ms var(--ease-out) 160ms, transform 720ms var(--ease-out) 160ms;
}

.manifesto-panel p + p {
    margin-top: 1rem;
}

.manifesto-panel strong {
    color: var(--white);
    font-weight: 700;
    text-decoration: underline;
    text-decoration-color: var(--cyan);
    text-underline-offset: 4px;
}

.act.in-view .fracture-title,
.act.in-view .manifesto-panel {
    opacity: 1;
    transform: translate(0, 0);
}

.sticker {
    position: absolute;
    z-index: 6;
    border: 2px solid var(--white);
    border-radius: 0.45rem;
    padding: 0.45rem 0.75rem;
    background: rgba(20, 20, 25, 0.6);
    color: var(--white);
    font-family: "Share Tech Mono", monospace;
    font-size: clamp(0.62rem, 1vw, 0.8rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateX(-70px) rotate(var(--r));
    transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}

.sticker-a { --r: -4deg; top: 18%; left: 5%; transition-delay: 140ms; }
.sticker-b { --r: 5deg; top: 45%; left: 7%; transition-delay: 260ms; color: var(--yellow); }
.sticker-c { --r: -2deg; bottom: 17%; left: 4%; transition-delay: 380ms; color: var(--cyan); }

.act.in-view .sticker {
    opacity: 1;
    transform: translateX(0) rotate(var(--r));
}

.act-signal {
    align-items: center;
    background: var(--void);
}

.scanlines {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    background: repeating-linear-gradient(to bottom, transparent 0 2px, rgba(255, 255, 255, 0.03) 2px 3px);
}

.signal-grid {
    align-content: center;
    min-height: 60vh;
}

.signal-line {
    grid-column: 2 / 12;
    color: var(--cyan);
    font-family: "Space Grotesk", Inter, sans-serif;
    font-size: clamp(2rem, 4vw, 4.6rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 720ms var(--ease-out), transform 720ms var(--ease-out), text-shadow 50ms linear;
}

.signal-line:nth-of-type(1) { transition-delay: 80ms; }
.signal-line:nth-of-type(2) { transition-delay: 380ms; }
.signal-line:nth-of-type(3) { transition-delay: 680ms; }

.gradient-rule {
    grid-column: 2 / 12;
    height: 2px;
    margin: clamp(1.3rem, 3vw, 2.4rem) 0;
    background: linear-gradient(90deg, var(--magenta), var(--cyan));
    transform: scaleX(0);
    transform-origin: left;
    opacity: 0;
    transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}

.gradient-rule:nth-of-type(2) { transition-delay: 230ms; }
.gradient-rule:nth-of-type(4) { transition-delay: 530ms; }

.act.in-view .signal-line,
.act.in-view .gradient-rule {
    opacity: 1;
    transform: translateY(0) scaleX(1);
}

.act-code {
    align-items: center;
    background: var(--slate);
}

.halftone-field {
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: 0.18;
    background-image: radial-gradient(circle, var(--magenta) 1px, transparent 1px);
    background-size: 6px 6px;
    mask-image: linear-gradient(90deg, transparent, #000 18%, #000 62%, transparent);
}

.terminal-strip {
    position: relative;
    z-index: 5;
    grid-column: 2 / 12;
    align-self: center;
    min-height: 60vh;
    width: 100%;
    padding: clamp(1rem, 4vw, 3rem);
    border: 1px solid rgba(0, 245, 212, 0.32);
    background: rgba(10, 10, 15, 0.76);
    box-shadow: 0 0 0 1px rgba(255, 45, 120, 0.12), 0 0 40px rgba(0, 245, 212, 0.08);
}

.terminal-label {
    margin-bottom: clamp(1.5rem, 4vw, 3rem);
}

.terminal-readout {
    position: relative;
    font-family: "Share Tech Mono", monospace;
    font-size: clamp(0.86rem, 1.35vw, 1.2rem);
    line-height: 2;
    letter-spacing: 0.04em;
    color: var(--cyan);
}

.terminal-line {
    min-height: 2em;
    color: var(--cyan);
    white-space: pre-wrap;
}

.terminal-line::first-letter {
    color: var(--gray);
}

.cursor {
    display: inline-block;
    width: 0.72em;
    height: 1.2em;
    margin-left: 0.2em;
    vertical-align: -0.2em;
    background: var(--yellow);
    animation: cursor-blink 760ms steps(1, end) infinite;
}

.act-shift {
    align-items: center;
    background: radial-gradient(circle at 50% 50%, rgba(229, 255, 0, 0.06), transparent 34%), var(--void);
}

.shift-grid {
    align-content: center;
    text-align: center;
}

.final-tag {
    grid-column: 4 / 10;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 650ms var(--ease-out), transform 650ms var(--ease-out);
}

.shift-word {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    color: var(--silver);
    font-family: "Bebas Neue", Impact, sans-serif;
    font-size: clamp(8rem, 40vw, 34rem);
    font-weight: 400;
    line-height: 0.75;
    letter-spacing: -0.05em;
    text-transform: uppercase;
}

.shift-word span {
    display: inline-block;
    color: var(--silver);
    transform: translateY(12vh) scale(0.94);
    opacity: 0;
    transition: opacity 620ms var(--ease-out), transform 620ms var(--ease-out), color 800ms var(--ease-out);
    transition-delay: calc(var(--i) * 120ms);
}

.act.in-view .shift-word span {
    opacity: 1;
    transform: translateY(0) scale(1);
    animation: chroma-wave 800ms var(--ease-out) forwards;
    animation-delay: calc(180ms + var(--i) * 200ms);
}

.final-line {
    grid-column: 3 / 11;
    margin-top: clamp(1rem, 3vw, 2rem);
    color: var(--silver);
    font-size: clamp(1rem, 1.8vw, 1.35rem);
    line-height: 1.7;
    letter-spacing: 0.02em;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 650ms var(--ease-out) 650ms, transform 650ms var(--ease-out) 650ms;
}

.finale-rule {
    grid-column: 4 / 10;
    margin-top: 1.8rem;
    transition-delay: 760ms;
}

.act.in-view .final-tag,
.act.in-view .final-line {
    opacity: 1;
    transform: translateY(0);
}

.glitching {
    text-shadow: -3px 0 var(--magenta), 3px 0 var(--cyan);
}

@keyframes grain-shift {
    0% { transform: translate(0, 0); }
    50% { transform: translate(-2px, 1px); }
    100% { transform: translate(1px, -2px); }
}

@keyframes cursor-blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

@keyframes chroma-wave {
    0% { color: var(--silver); }
    25% { color: var(--magenta); }
    50% { color: var(--cyan); }
    75% { color: var(--yellow); }
    100% { color: var(--white); }
}

@media (max-width: 760px) {
    .act {
        padding: 1rem;
    }

    .tag-top,
    .origin-label,
    .coordinate,
    .fracture-title,
    .manifesto-panel,
    .signal-line,
    .gradient-rule,
    .terminal-strip,
    .final-tag,
    .final-line,
    .finale-rule {
        grid-column: 1 / -1;
    }

    .manifesto-panel {
        margin-top: 1.2rem;
    }

    .sticker {
        opacity: 0.65;
        transform: rotate(var(--r));
    }

    .sticker-a { top: 8%; left: 4%; }
    .sticker-b { top: auto; bottom: 8%; left: 9%; }
    .sticker-c { display: none; }
}