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383 lines
12 KiB
HTML
383 lines
12 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=1920, height=1080" />
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<title>Scene 3 — Assembly Focus Reveal (hyperframes)</title>
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<!--
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HyperFrames composition.tsx.
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Choreography (5 phases, 5 seconds total):
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0.00 – 0.67s "Just use" assembles in a discrete sequence (with hold)
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0.73 – 1.23s Pink logo pops in with back.out elastic
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1.50 – 2.20s "Just use" slides left + fades; container recenters around brand
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2.67 – 3.57s Camera zooms 5.5× into the logo (scale + counter-translate)
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3.67 – 5.00s Logo breathes (sine onUpdate, multiplicative on pop scale)
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Key differences :
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- Single paused GSAP timeline registered to window.__timelines["main"]
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- brandTextWidth measured via getBoundingClientRect after document.fonts.ready
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- HERO_FINAL_OFFSET_X derived from real measurement, not estimate
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- Breathing uses the onUpdate (multiplicative) form so it multiplies
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onto the pop scale, not a fromTo + yoyo which would overwrite the pop value
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- Three nested transform layers: zoom-scale → zoom-translate → recenter-shift
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- Logo is loaded from a static PNG asset
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-->
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<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
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<style>
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:root {
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--bg: #000000;
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--text-white: #ffffff;
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--pink: #e91e63;
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}
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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html,
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body {
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margin: 0;
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width: 1920px;
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height: 1080px;
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overflow: hidden;
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background: var(--bg);
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font-family: "Google Sans", "Roboto", Inter, system-ui, sans-serif;
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color: var(--text-white);
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}
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.stage {
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position: absolute;
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inset: 0;
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display: flex;
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align-items: center;
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justify-content: center;
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overflow: hidden;
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}
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/* Three nested transform layers (outer → inner) */
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.zoom-scale {
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transform-origin: center center;
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will-change: transform;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.zoom-translate {
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will-change: transform;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.recenter-shift {
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display: flex;
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align-items: center;
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}
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/* Companion text — fixed width to prevent assembly jitter */
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.companion {
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width: 600px;
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display: flex;
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justify-content: flex-end;
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margin-right: 30px;
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white-space: nowrap;
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color: var(--text-white);
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font-size: 140px;
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font-weight: 400;
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line-height: 1;
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}
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/* Brand group: text + hero icon */
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.brand-group {
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display: flex;
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align-items: center;
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gap: 20px;
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}
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.brand-text {
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color: var(--text-white);
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font-size: 140px;
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font-weight: 700;
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white-space: nowrap;
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line-height: 1;
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}
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.hero {
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display: flex;
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align-items: center;
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justify-content: center;
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width: 140px;
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height: 140px;
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/* initial scale(0) set by GSAP fromTo */
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}
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.hero .logo-mark {
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width: 100%;
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height: 100%;
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display: block;
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}
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/* Hidden probe used for text measurement */
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.measure-probe {
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position: absolute;
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left: -99999px;
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top: -99999px;
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visibility: hidden;
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white-space: pre;
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}
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</style>
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</head>
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<body>
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<div
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id="root"
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data-composition-id="main"
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data-start="0"
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data-duration="5"
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data-width="1920"
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data-height="1080"
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>
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<div
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class="stage clip"
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data-start="0"
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data-duration="5"
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data-track-index="1"
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id="brand-stage"
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>
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<div class="zoom-scale" data-layout-allow-overflow>
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<div class="zoom-translate">
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<div class="recenter-shift">
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<div class="companion">
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<span class="companion-text">J</span>
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</div>
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<div class="brand-group" data-layout-allow-overflow>
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<span class="brand-text">Hyperframes</span>
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<div class="hero">
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<!-- Inline-SVG placeholder mark — swap for your logo image -->
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<svg
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class="logo-mark"
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viewBox="0 0 100 100"
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role="img"
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aria-label="hyperframes logo"
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>
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<defs>
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<linearGradient id="hfMark" x1="0" y1="0" x2="1" y2="1">
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<stop offset="0" stop-color="#8b7bff" />
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<stop offset="1" stop-color="#3ddc97" />
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</linearGradient>
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</defs>
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<rect x="4" y="4" width="92" height="92" rx="22" fill="url(#hfMark)" />
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<text
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x="50"
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y="63"
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text-anchor="middle"
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font-family="Inter, system-ui, sans-serif"
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font-size="40"
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font-weight="800"
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fill="#fff"
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>
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HF
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</text>
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</svg>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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<script>
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/* ================================================================
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CONSTANTS — composition dimensions baked in.
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================================================================ */
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const W = 1920,
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H = 1080;
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const TOTAL_DURATION = 5.0;
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const COMPANION_WIDTH = 600;
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const COMPANION_GAP = 30; // margin-right on .companion
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const BRAND_FONT_SIZE = 140;
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const HERO_GAP = 20;
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const HERO_SIZE = 140;
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const TIMING = {
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// Phase 1: companion assembly
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textStart: 0.0,
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textEnd: 0.67,
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// Phase 2: hero pop
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popStart: 0.73,
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popDur: 0.5,
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// Phase 3: slide-out + recenter
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slideStart: 1.5,
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slideDur: 0.7,
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// Phase 4: zoom
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zoomStart: 2.67,
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zoomDur: 0.9,
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// Phase 5: breathing
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breathStart: 3.67,
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};
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const FINAL_RECENTER_OFFSET = -180; // pre-calculated, tuned for visual feel
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/* ================================================================
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DISCRETE TEXT SEQUENCE for the companion assembly.
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Converted from the source frame-based sequence to seconds at 30fps.
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================================================================ */
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const SEQUENCE = [
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{ t: 0.0, text: "J" },
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{ t: 0.07, text: "Jus" },
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{ t: 0.13, text: "Just" },
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{ t: 0.27, text: "Just" }, // hold for pacing
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{ t: 0.4, text: "Just u" },
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{ t: 0.53, text: "Just us" },
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{ t: 0.67, text: "Just use" },
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];
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/* ================================================================
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TIMELINE — built synchronously so HyperFrames can seek it.
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================================================================ */
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window.__timelines = window.__timelines || {};
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const tl = gsap.timeline({ paused: true });
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window.__timelines["main"] = tl;
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{
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/* Measure the brand text width with a hidden DOM probe. */
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const probe = document.createElement("span");
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probe.className = "measure-probe";
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probe.style.font = `700 ${BRAND_FONT_SIZE}px "Google Sans", "Roboto", Inter, system-ui, sans-serif`;
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probe.style.whiteSpace = "pre";
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probe.style.lineHeight = "1";
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probe.textContent = "Hyperframes"; // MUST match the rendered .brand-text casing
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document.body.appendChild(probe);
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const brandTextWidth = probe.getBoundingClientRect().width;
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probe.remove();
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/* Derive the hero's post-Phase-3 offset from viewport center.
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baseHeroOffset = (C + G + B + L) / 2 <- heroSize cancels out
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HERO_FINAL_OFFSET_X = baseHeroOffset + FINAL_RECENTER_OFFSET */
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const baseHeroOffset = (COMPANION_WIDTH + COMPANION_GAP + brandTextWidth + HERO_GAP) / 2;
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const HERO_FINAL_OFFSET_X = baseHeroOffset + FINAL_RECENTER_OFFSET;
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/* ============================================================
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PHASE 1: Discrete companion assembly
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============================================================ */
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const textEl = document.querySelector(".companion-text");
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for (const entry of SEQUENCE) {
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tl.set(textEl, { textContent: entry.text }, entry.t);
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}
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/* ============================================================
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PHASE 2: Hero pops in (elastic)
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============================================================ */
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tl.fromTo(
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".hero",
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{ scale: 0 },
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{
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scale: 1,
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duration: TIMING.popDur,
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ease: "back.out(2)", // spring(stiffness:200, damping:12)
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},
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TIMING.popStart,
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);
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/* ============================================================
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PHASE 3: Companion exit + container recenter
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Two concurrent tweens at the same timeline position.
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============================================================ */
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tl.to(
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".companion",
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{
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opacity: 0,
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x: -80,
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duration: TIMING.slideDur,
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ease: "power3.out", // spring(stiffness:100, damping:20)
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},
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TIMING.slideStart,
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);
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tl.to(
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".recenter-shift",
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{
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x: FINAL_RECENTER_OFFSET,
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duration: TIMING.slideDur,
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ease: "power3.out",
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},
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TIMING.slideStart,
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);
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/* ============================================================
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PHASE 4: Zoom — scale (outer) + counter-translate (middle) + brand text exits.
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============================================================ */
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tl.to(
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".zoom-scale",
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{
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scale: 5.5,
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duration: TIMING.zoomDur,
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ease: "power2.out", // spring(stiffness:80, damping:20, mass:1.5)
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},
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TIMING.zoomStart,
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);
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tl.to(
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".zoom-translate",
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{
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x: -HERO_FINAL_OFFSET_X,
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y: 0,
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duration: TIMING.zoomDur,
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ease: "power2.out",
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},
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TIMING.zoomStart,
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);
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// Brand text fades out + slides left so the logo gets all the zoom space.
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tl.to(
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".brand-text",
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{
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opacity: 0,
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x: -600,
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duration: TIMING.zoomDur * 0.4,
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ease: "power2.out",
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},
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TIMING.zoomStart,
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);
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/* ============================================================
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PHASE 5: Breathing — onUpdate so it MULTIPLIES on the hero's
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final pop scale, doesn't overwrite it.
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============================================================ */
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const heroEl = document.querySelector(".hero");
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const HERO_FINAL_SCALE = 1.0;
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const SCALE_PERIOD = 1.5; // seconds per cycle
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const SCALE_AMP = 0.04;
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const ROTATE_AMP = 2;
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const breathDur = TOTAL_DURATION - TIMING.breathStart;
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tl.to(
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{ tick: 0 },
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{
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tick: 1,
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duration: breathDur,
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ease: "none",
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onUpdate: function () {
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const idleTime = Math.max(0, tl.time() - TIMING.breathStart);
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const omega = (idleTime / SCALE_PERIOD) * Math.PI * 2;
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gsap.set(heroEl, {
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scale: HERO_FINAL_SCALE * (1 + Math.sin(omega) * SCALE_AMP),
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rotation: Math.sin(omega) * ROTATE_AMP,
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});
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},
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},
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TIMING.breathStart,
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);
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}
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</script>
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</body>
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</html>
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