simonandClaude Opus 5
cc6ea58c7c
Firefox has no tab capture, so preferCurrentTab is silently dropped and the operator can only share a window or a screen. Neither maps onto the viewport the way the crop assumes, so screenshots came out offset by the browser chrome — and every failure was swallowed by a bare catch, leaving no way to tell why. Check the shared surface and only crop when the viewport covers it: exact for Chrome's tab capture, true for a screen while the page is fullscreen. Test that by dimensions rather than document.fullscreenElement, which F11 leaves null. Start now requests fullscreen, after getDisplayMedia so the click's transient activation goes to the fragile call. Reasons surface in a corner notice and the console, and the check reruns per grab so leaving fullscreen says so. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01H9v2Xoa6eoeGYpK6gp95k9
336 lines
7.1 KiB
CSS
336 lines
7.1 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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/* 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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