simonandClaude Opus 5
7706fe46c6
Centred, spanning 60% of the screen width, on the poster's layer so the video frame and the stills still pass in front of it. The file lives in assets/ with the posters, so it has to be kept out of the background rotation — it is the one image there that is never a background. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01H9v2Xoa6eoeGYpK6gp95k9
353 lines
7.6 KiB
CSS
353 lines
7.6 KiB
CSS
:root {
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--accent: #ff4fc3;
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--ink: #14060f;
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}
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* {
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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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height: 100%;
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overflow: hidden;
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background: var(--ink);
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font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
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cursor: none;
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}
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/* --- background ------------------------------------------------------- */
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#backgrounds {
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position: fixed;
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inset: 0;
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}
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/* Two canvases, cross-faded. The zoom and the crop are baked into the pixels
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by backdrop.js, so these are always exactly screen-sized. */
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#backgrounds canvas {
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position: absolute;
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inset: 0;
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width: 100%;
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height: 100%;
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opacity: 0;
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transition: opacity 900ms ease;
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/* Knock the poster back so the video frame stays the focal point — the
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posters are pale and read far brighter on a projector than on a desk. */
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filter: brightness(0.45) saturate(1.15);
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}
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#backgrounds canvas.active {
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opacity: 1;
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}
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/* The logo sits on the poster, not on the video: it shares the backdrop's
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layer so the frame and the stills still pass in front of it. Its width comes
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from LOGO_WIDTH, written onto the element by backdrop.js. */
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#logo {
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position: fixed;
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top: 50%;
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left: 50%;
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translate: -50% -50%;
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height: auto;
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/* Only bites on a screen too short for the width above — on the projector
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the width is what decides. */
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max-height: 70vh;
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object-fit: contain;
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pointer-events: none;
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z-index: 0;
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}
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/* Built and removed by the wash animation. Sits between the poster and the
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stills, and blends rather than covers, so the poster stays legible through
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whatever colour is passing over it. The gradient itself is written per frame
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from JS. */
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#wash {
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position: fixed;
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inset: 0;
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z-index: 0;
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pointer-events: none;
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/* Takes the poster's luminance and only replaces its hue, so the wash reads
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as a colour change rather than as a sheet of colour laid over the top. */
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mix-blend-mode: color;
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}
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/* --- frozen screenshots ------------------------------------------------ */
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#stills {
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position: fixed;
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inset: 0;
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pointer-events: none;
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z-index: 1;
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}
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#stills img {
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position: absolute;
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top: 0;
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left: 0;
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object-fit: cover;
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opacity: 0;
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/* Matches #frameSkin, so a still reads as a frozen copy of the frame. */
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border-radius: 10px;
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border: 2px solid rgba(255, 255, 255, 0.85);
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box-shadow:
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0 0 0 4px rgba(255, 79, 195, 0.55),
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0 24px 70px rgba(0, 0, 0, 0.7);
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transition: opacity 500ms ease;
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will-change: transform;
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}
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#stills img.visible {
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opacity: 1;
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}
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/* The trail ramps opacity frame-by-frame as a still ages, so the CSS transition
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above would only fight it. */
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#stills img.trail {
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transition: none;
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}
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/* --- the moving frame -------------------------------------------------- */
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#frameMover {
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position: fixed;
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top: 0;
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left: 0;
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/* Above the stills, so the live video always wins if anything ever overlaps. */
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z-index: 2;
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will-change: transform;
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}
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#frameSkin {
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position: relative;
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width: 100%;
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height: 100%;
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overflow: hidden;
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border-radius: 10px;
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border: 2px solid rgba(255, 255, 255, 0.85);
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box-shadow:
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0 0 0 4px rgba(255, 79, 195, 0.55),
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0 24px 70px rgba(0, 0, 0, 0.7);
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background: #000;
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}
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/* Lift the frame while the drag animation is holding it, the way a dragged
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window separates from the desktop. */
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#frameMover.dragging #frameSkin {
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box-shadow:
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0 0 0 4px rgba(255, 79, 195, 0.75),
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0 40px 100px rgba(0, 0, 0, 0.85);
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}
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/* The wash animation hands the frame the colour currently passing behind it. */
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#frameMover.washing #frameSkin {
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box-shadow:
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0 0 0 4px var(--wash, rgba(255, 79, 195, 0.55)),
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0 24px 70px rgba(0, 0, 0, 0.7);
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}
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/* --- the drawn pointer -------------------------------------------------- */
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/* Built and removed by the drag animation; nothing else on the page has one. */
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#pointer {
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position: fixed;
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top: 0;
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left: 0;
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z-index: 3;
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pointer-events: none;
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will-change: transform;
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filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.6));
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}
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#pointer svg {
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display: block;
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transition: transform 90ms ease;
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}
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/* The click itself: the arrow dips, so a grab is visible even mid-pause. */
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#pointer.down svg {
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transform: scale(0.82);
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}
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/* --- pong --------------------------------------------------------------- */
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/* Built and removed by the pong animation. Above the frame, so the ball is
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never hidden behind the paddle it is bouncing off. */
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#pong {
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position: fixed;
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inset: 0;
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z-index: 3;
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pointer-events: none;
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}
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#pongBall {
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position: absolute;
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top: 0;
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left: 0;
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background: #fff;
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/* Square, and no smoothing: the original had no room for a round ball. */
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box-shadow: 0 0 18px rgba(255, 79, 195, 0.7);
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will-change: transform;
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}
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/* Out of play between a goal and the next serve. */
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#pongBall.out {
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opacity: 0;
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}
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#pongScore {
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position: absolute;
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top: clamp(16px, 4vh, 56px);
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right: clamp(16px, 4vw, 72px);
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display: flex;
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gap: 0.35em;
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font-size: clamp(2.5rem, 7vh, 6rem);
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}
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#pongScore .digit {
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display: block;
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height: 1em;
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/* The viewBox is 24 wide by 44 tall. */
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width: calc(1em * 24 / 44);
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}
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/* An unlit segment stays visible, just barely — that faint ghost of the whole
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figure eight is what makes the display read as a seven-segment one. */
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#pongScore .segment {
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fill: rgba(255, 255, 255, 0.07);
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}
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#pongScore .segment.lit {
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fill: #fff;
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filter: drop-shadow(0 0 10px rgba(255, 79, 195, 0.8));
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}
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/* The paddle: a hard-edged slab, so the ball has something square to hit. */
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#frameMover.paddle #frameSkin {
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border-radius: 0;
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box-shadow:
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0 0 0 3px #fff,
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0 0 34px rgba(255, 79, 195, 0.6);
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}
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.deck {
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position: absolute;
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inset: 0;
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opacity: 0;
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/* Opacity is driven frame-by-frame during a crossfade, so no CSS transition
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here — it would fight the JS ramp. */
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}
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.deck iframe {
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width: 100%;
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height: 100%;
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border: 0;
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/* The iframe would otherwise swallow nothing useful, but keeping it inert
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avoids stray clicks pausing playback. */
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pointer-events: none;
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}
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/* The screen-capture stream's sink. Has to be in the document to keep getting
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frames (see capture.js), but must not be visible or catch clicks. */
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#captureSink {
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position: fixed;
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left: 0;
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top: 0;
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width: 1px;
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height: 1px;
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opacity: 0.01;
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pointer-events: none;
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z-index: -1;
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}
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#probe {
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position: fixed;
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left: -400px;
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top: -400px;
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width: 320px;
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height: 180px;
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opacity: 0;
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pointer-events: none;
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}
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/* --- start gate -------------------------------------------------------- */
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#gate {
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position: fixed;
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inset: 0;
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display: grid;
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place-items: center;
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background: rgba(20, 6, 15, 0.92);
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backdrop-filter: blur(6px);
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z-index: 10;
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cursor: pointer;
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transition: opacity 400ms ease;
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}
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#gate.hidden {
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opacity: 0;
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pointer-events: none;
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}
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.gate-inner {
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text-align: center;
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color: #fff;
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}
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.gate-inner h1 {
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font-size: clamp(2rem, 7vw, 5rem);
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margin: 0 0 0.3em;
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letter-spacing: -0.03em;
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color: var(--accent);
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}
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.gate-inner p {
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margin: 0 0 2em;
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opacity: 0.7;
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font-size: 1.05rem;
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}
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#start {
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font: inherit;
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font-size: 1.3rem;
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padding: 0.7em 3em;
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border: 0;
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border-radius: 999px;
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background: var(--accent);
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color: var(--ink);
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font-weight: 700;
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cursor: pointer;
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}
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#start:disabled {
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opacity: 0.35;
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cursor: default;
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}
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#status {
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position: fixed;
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bottom: 12px;
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right: 16px;
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z-index: 20;
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color: var(--accent);
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font-size: 0.8rem;
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letter-spacing: 0.08em;
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text-transform: uppercase;
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}
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/* Bottom left, opposite #status, so the two never overlap. */
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#notice {
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position: fixed;
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bottom: 12px;
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left: 16px;
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z-index: 20;
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max-width: min(46ch, 60vw);
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padding: 8px 12px;
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border-radius: 6px;
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background: rgb(0 0 0 / 0.55);
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color: var(--accent);
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font-size: 0.8rem;
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line-height: 1.35;
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}
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