ai-code-battle/web/src/components/playlist-carousel.ts
jedarden ae0f072f80 feat(web): route R2 assets through Pages Function instead of r2.aicodebattle.com
The aicodebattle.com domain was never registered. Replace all hardcoded
https://r2.aicodebattle.com references with the /r2/ relative path, served
by a Cloudflare Pages Function that reads from the acb-data R2 bucket via
binding. Adds web/functions/r2/[[path]].ts and web/wrangler.toml.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-30 07:55:44 -04:00

989 lines
30 KiB
TypeScript

// Mobile Playlist Carousel — full-screen swipeable cards (§16.16)
// On mobile viewport (<768px), playlist entry opens this TikTok-style carousel.
// Desktop unaffected — keeps the grid layout from playlists.ts.
import type { Playlist, PlaylistMatch } from '../api-types';
import type { Replay } from '../types';
import {
computeAllDensities,
computeSpeedSchedule,
createDirectorState,
tickDirectorSpeed,
type DirectorState,
type DurationPreset,
} from './director';
const loadReplayViewer = () => import('../replay-viewer');
function escapeHtml(s: string): string {
return s.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
}
// ── Touch tracking for live 60fps swipe ─────────────────────────────────────
interface TouchTracker {
startX: number;
startY: number;
startTime: number;
tracking: boolean;
locked: 'none' | 'vertical' | 'horizontal';
currentDeltaY: number;
currentDeltaX: number;
}
// ── Carousel component ─────────────────────────────────────────────────────
export interface CarouselOptions {
playlist: Playlist;
startIndex?: number;
onClose: () => void;
autoAdvanceDelay?: number; // ms, default 3000
}
const DEFAULT_AUTO_ADVANCE_DELAY = 3000;
const METADATA_PANEL_WIDTH = 280;
const TRANSITION_MS = 300;
const R2_BASE = '/r2';
const B2_FALLBACK = 'https://b2.aicodebattle.com';
const SWIPE_THRESHOLD = 50; // min px to trigger advance
const VELOCITY_THRESHOLD = 0.3; // px/ms — fast flick triggers even below threshold
const REDUCED_MOTION = typeof window !== 'undefined'
&& window.matchMedia('(prefers-reduced-motion: reduce)').matches;
export class PlaylistCarousel {
private overlay: HTMLDivElement;
private styleEl: HTMLStyleElement;
private playlist: Playlist;
private currentIndex: number;
private onClose: () => void;
private autoAdvanceDelay: number;
// Per-card DOM
private carouselInner: HTMLDivElement;
private canvas: HTMLCanvasElement;
private headerBar: HTMLDivElement;
private scoreBar: HTMLDivElement;
private eventHint: HTMLDivElement;
private swipeHint: HTMLDivElement;
private metadataPanel: HTMLDivElement;
private closeBtn: HTMLButtonElement;
private countdownRing: HTMLDivElement;
// Replay viewer
private viewer: InstanceType<typeof import('../replay-viewer').ReplayViewer> | null = null;
// Director state
private directorState: DirectorState = createDirectorState();
private directorSchedule: ReturnType<typeof computeSpeedSchedule> = [];
private directorAnimFrame: number | null = null;
// Preloading
private preloadedReplays = new Map<number, Replay>();
// Auto-advance timer
private autoAdvanceTimer: ReturnType<typeof setTimeout> | null = null;
private countdownAnimFrame: number | null = null;
// Metadata panel state
private metadataOpen = false;
// Transition state
private transitioning = false;
// Touch tracking for live swipe
private touch: TouchTracker = {
startX: 0, startY: 0, startTime: 0,
tracking: false, locked: 'none',
currentDeltaY: 0, currentDeltaX: 0,
};
constructor(opts: CarouselOptions) {
this.playlist = opts.playlist;
this.currentIndex = opts.startIndex ?? 0;
this.onClose = opts.onClose;
this.autoAdvanceDelay = opts.autoAdvanceDelay ?? DEFAULT_AUTO_ADVANCE_DELAY;
// Create overlay
this.overlay = document.createElement('div');
this.overlay.className = 'carousel-overlay';
this.overlay.innerHTML = CAROUSEL_HTML;
document.body.appendChild(this.overlay);
document.body.style.overflow = 'hidden';
// Inject styles
this.styleEl = document.createElement('style');
this.styleEl.textContent = CAROUSEL_CSS;
document.head.appendChild(this.styleEl);
// Grab refs
this.carouselInner = this.overlay.querySelector('.carousel-card')!;
this.canvas = this.overlay.querySelector('.carousel-canvas')!;
this.headerBar = this.overlay.querySelector('.carousel-header')!;
this.scoreBar = this.overlay.querySelector('.carousel-score-bar')!;
this.eventHint = this.overlay.querySelector('.carousel-event-hint')!;
this.swipeHint = this.overlay.querySelector('.carousel-swipe-hint')!;
this.metadataPanel = this.overlay.querySelector('.carousel-metadata-panel')!;
this.closeBtn = this.overlay.querySelector('.carousel-close-btn')!;
this.countdownRing = this.overlay.querySelector('.carousel-countdown-ring')!;
// Close button
this.closeBtn.addEventListener('click', () => this.destroy());
// Touch events with live tracking
this.carouselInner.addEventListener('touchstart', (e) => this.onTouchStart(e), { passive: true });
this.carouselInner.addEventListener('touchmove', (e) => this.onTouchMove(e), { passive: false });
this.carouselInner.addEventListener('touchend', (e) => this.onTouchEnd(e), { passive: true });
this.carouselInner.addEventListener('touchcancel', () => this.onTouchCancel(), { passive: true });
// Tap on canvas = play/pause
this.canvas.addEventListener('click', () => {
if (this.viewer?.getReplay()) this.viewer.togglePlay();
});
// Initialize
this.init();
}
private async init(): Promise<void> {
const { ReplayViewer } = await loadReplayViewer();
this.viewer = new ReplayViewer(this.canvas, {
cellSize: 6,
animationSpeed: 100,
});
this.viewer.onTurnChange = () => {
if (!this.viewer) return;
if (this.viewer.getIsPlaying() && this.viewer.getTurn() >= this.viewer.getTotalTurns() - 1) {
this.viewer.pause();
this.onReplayEnd();
}
};
this.viewer.onPlayStateChange = () => { /* keep callback wired */ };
await this.loadCard(this.currentIndex);
// Fade swipe hint after 3s
setTimeout(() => {
if (this.swipeHint) this.swipeHint.classList.add('carousel-hint-fade');
}, 3000);
}
// ── Touch handling with live 60fps tracking ──────────────────────────────
private onTouchStart(e: TouchEvent): void {
if (e.touches.length !== 1 || this.transitioning) return;
this.touch.startX = e.touches[0].clientX;
this.touch.startY = e.touches[0].clientY;
this.touch.startTime = Date.now();
this.touch.tracking = true;
this.touch.locked = 'none';
this.touch.currentDeltaY = 0;
this.touch.currentDeltaX = 0;
}
private onTouchMove(e: TouchEvent): void {
if (!this.touch.tracking || this.transitioning) return;
if (e.touches.length !== 1) return;
const dx = e.touches[0].clientX - this.touch.startX;
const dy = e.touches[0].clientY - this.touch.startY;
// Lock axis on first significant movement
if (this.touch.locked === 'none' && (Math.abs(dx) > 10 || Math.abs(dy) > 10)) {
this.touch.locked = Math.abs(dx) > Math.abs(dy) ? 'horizontal' : 'vertical';
}
if (this.touch.locked === 'vertical') {
this.touch.currentDeltaY = dy;
// Apply live transform for visual feedback
if (!REDUCED_MOTION) {
this.carouselInner.style.transition = 'none';
this.carouselInner.style.transform = `translateY(${dy}px)`;
this.carouselInner.style.opacity = String(1 - Math.min(Math.abs(dy) / 400, 0.4));
}
// Prevent scroll-through
e.preventDefault();
} else if (this.touch.locked === 'horizontal') {
if (this.metadataOpen) {
// Drag metadata panel closed
const clampedDx = Math.max(0, Math.min(METADATA_PANEL_WIDTH, -dx));
this.touch.currentDeltaX = clampedDx;
if (!REDUCED_MOTION) {
this.metadataPanel.style.transition = 'none';
this.metadataPanel.style.transform = `translateX(${METADATA_PANEL_WIDTH - clampedDx}px)`;
this.carouselInner.style.transition = 'none';
this.carouselInner.style.transform = `translateX(${-METADATA_PANEL_WIDTH + clampedDx}px)`;
}
} else {
this.touch.currentDeltaX = dx;
if (!REDUCED_MOTION) {
// Peek metadata panel
const reveal = Math.max(0, Math.min(METADATA_PANEL_WIDTH, dx));
const ratio = reveal / METADATA_PANEL_WIDTH;
this.metadataPanel.style.transition = 'none';
this.metadataPanel.style.transform = `translateX(${METADATA_PANEL_WIDTH - reveal}px)`;
this.carouselInner.style.transition = 'none';
this.carouselInner.style.transform = `translateX(${-reveal}px)`;
this.metadataPanel.style.opacity = String(ratio);
}
}
}
}
private onTouchEnd(_e: TouchEvent): void {
if (!this.touch.tracking) return;
this.touch.tracking = false;
const dy = this.touch.currentDeltaY;
const dx = this.touch.currentDeltaX;
const dt = Date.now() - this.touch.startTime;
const velocityY = Math.abs(dy) / Math.max(dt, 1);
const velocityX = Math.abs(dx) / Math.max(dt, 1);
// Restore transitions
this.carouselInner.style.transition = '';
this.carouselInner.style.transform = '';
this.carouselInner.style.opacity = '';
this.metadataPanel.style.transition = '';
this.metadataPanel.style.opacity = '';
if (this.touch.locked === 'vertical') {
const shouldAdvance = Math.abs(dy) > SWIPE_THRESHOLD || velocityY > VELOCITY_THRESHOLD;
if (shouldAdvance) {
if (dy < 0 && this.currentIndex < this.playlist.matches.length - 1) {
this.advanceTo(this.currentIndex + 1);
} else if (dy > 0 && this.currentIndex > 0) {
this.advanceTo(this.currentIndex - 1);
} else {
// At boundary — snap back
this.snapBack();
}
} else {
// Not enough — snap back
this.snapBack();
}
} else if (this.touch.locked === 'horizontal') {
if (this.metadataOpen) {
const shouldClose = dx > SWIPE_THRESHOLD || velocityX > VELOCITY_THRESHOLD;
if (shouldClose) {
this.closeMetadata();
} else {
this.openMetadata(); // snap back to open
}
} else {
const shouldOpen = dx > SWIPE_THRESHOLD || velocityX > VELOCITY_THRESHOLD;
if (shouldOpen) {
this.openMetadata();
} else {
this.closeMetadata(); // snap back to closed
}
}
}
this.touch.currentDeltaY = 0;
this.touch.currentDeltaX = 0;
}
private onTouchCancel(): void {
this.touch.tracking = false;
this.carouselInner.style.transition = '';
this.carouselInner.style.transform = '';
this.carouselInner.style.opacity = '';
this.metadataPanel.style.transition = '';
this.metadataPanel.style.opacity = '';
this.touch.currentDeltaY = 0;
this.touch.currentDeltaX = 0;
}
private snapBack(): void {
// CSS transition handles the snap-back animation
this.carouselInner.style.transform = '';
this.carouselInner.style.opacity = '';
}
// ── Card loading ─────────────────────────────────────────────────────────
private async loadCard(index: number): Promise<void> {
const match = this.playlist.matches[index];
if (!match) return;
// Update header
this.headerBar.innerHTML = `
<span class="carousel-playlist-name">${escapeHtml(this.playlist.title)}</span>
<span class="carousel-counter">${index + 1} of ${this.playlist.matches.length}</span>
`;
// Update score bar with placeholder
this.scoreBar.innerHTML = `
<span class="carousel-score-loading">Loading...</span>
`;
// Reset metadata panel
this.metadataOpen = false;
this.metadataPanel.style.transform = `translateX(${METADATA_PANEL_WIDTH}px)`;
this.metadataPanel.style.opacity = '0';
this.carouselInner.classList.remove('carousel-shifted');
this.updateMetadataContent(match, null);
// Hide countdown ring
this.hideCountdownRing();
// Clear auto-advance timer
this.clearAutoAdvance();
// Fetch replay
let replay = this.preloadedReplays.get(index);
if (!replay) {
try {
replay = await this.fetchReplay(match.match_id);
} catch {
this.scoreBar.innerHTML = `<span class="carousel-score-loading">Failed to load</span>`;
return;
}
}
if (!this.viewer) return;
// Load into viewer
this.viewer.loadReplay(replay);
// Set up director mode for auto-play
const densities = computeAllDensities(replay);
this.directorSchedule = computeSpeedSchedule(densities, 30 as DurationPreset);
this.directorState = createDirectorState();
this.directorState.enabled = true;
this.viewer.setDirectorMode(true);
// Start playing
this.viewer.togglePlay();
this.startDirectorTick();
// Update score bar
this.updateScoreBar(match, replay);
// Update event hint
this.updateEventHint(replay);
// Update metadata panel with full info
this.updateMetadataContent(match, replay);
// Preload next replay
this.preloadNext(index + 1);
}
private async fetchReplay(matchId: string): Promise<Replay> {
const urls = [
`${R2_BASE}/replays/${matchId}.json.gz`,
`${B2_FALLBACK}/replays/${matchId}.json.gz`,
];
for (const url of urls) {
try {
const resp = await fetch(url);
if (resp.ok) return await resp.json();
} catch { /* try next */ }
}
const resp = await fetch(`/replays/${matchId}.json.gz`);
if (!resp.ok) throw new Error(`Failed to fetch replay ${matchId}`);
return resp.json();
}
private preloadNext(index: number): void {
if (index >= this.playlist.matches.length) return;
if (this.preloadedReplays.has(index)) return;
const matchId = this.playlist.matches[index].match_id;
this.fetchReplay(matchId)
.then(r => this.preloadedReplays.set(index, r))
.catch(() => { /* preload failure is non-critical */ });
}
private updateScoreBar(_match: PlaylistMatch, replay: Replay): void {
const players = replay.players.map((p, i) => {
const score = replay.result.scores?.[i] ?? '-';
const won = replay.result.winner === i;
return `<span class="carousel-player${won ? ' carousel-winner' : ''}">${escapeHtml(p.name)} ${score}</span>`;
}).join(' <span class="carousel-vs">vs</span> ');
this.scoreBar.innerHTML = players;
}
private updateEventHint(replay: Replay): void {
const events = replay.turns.reduce((count, t) => count + (t.events?.length ?? 0), 0);
const icons = events > 20 ? '⚔️💎🏰' : events > 5 ? '⚔️💎' : '⚔️';
const totalTurns = replay.turns.length;
const estSeconds = Math.round(totalTurns / 16);
this.eventHint.innerHTML = `${icons} ~${estSeconds}s`;
}
private updateMetadataContent(match: PlaylistMatch, replay: Replay | null): void {
const parts: string[] = [];
parts.push(`<div class="carousel-meta-title">${escapeHtml(match.title ?? `Match ${match.order + 1}`)}</div>`);
if (match.curation_tag) parts.push(`<div class="carousel-meta-tag">${escapeHtml(match.curation_tag)}</div>`);
if (replay) {
parts.push(`<div class="carousel-meta-row"><span>Turns</span><span>${replay.turns.length}</span></div>`);
parts.push(`<div class="carousel-meta-row"><span>Map</span><span>${replay.map.rows}x${replay.map.cols}</span></div>`);
if (replay.result.reason) parts.push(`<div class="carousel-meta-row"><span>End</span><span>${escapeHtml(replay.result.reason)}</span></div>`);
}
if (match.completed_at) {
const d = new Date(match.completed_at);
parts.push(`<div class="carousel-meta-row"><span>Date</span><span>${d.toLocaleDateString()}</span></div>`);
}
parts.push(`<button class="carousel-meta-watch-full" data-match-id="${match.match_id}">Watch Full Replay →</button>`);
this.metadataPanel.innerHTML = parts.join('');
const btn = this.metadataPanel.querySelector('.carousel-meta-watch-full');
if (btn) {
btn.addEventListener('click', () => {
const id = (btn as HTMLElement).dataset.matchId!;
this.destroy();
window.location.hash = `/watch/replay?url=/replays/${id}.json.gz`;
});
}
}
// ── Auto-advance with countdown ring ─────────────────────────────────────
private onReplayEnd(): void {
if (this.currentIndex >= this.playlist.matches.length - 1) {
// Last match — no auto-advance
return;
}
const startTime = performance.now();
const duration = this.autoAdvanceDelay;
// Show countdown ring
this.showCountdownRing();
// Animate the countdown ring
const animate = (now: number) => {
const elapsed = now - startTime;
const progress = Math.min(elapsed / duration, 1);
// Update ring stroke-dashoffset
const circle = this.countdownRing.querySelector('.carousel-countdown-circle') as SVGElement | null;
if (circle) {
const circumference = 2 * Math.PI * 14; // r=14
circle.style.strokeDashoffset = String(circumference * (1 - progress));
}
// Update label
const label = this.countdownRing.querySelector('.carousel-countdown-label');
if (label) {
const remaining = Math.ceil((duration - elapsed) / 1000);
label.textContent = String(Math.max(remaining, 0));
}
if (progress < 1) {
this.countdownAnimFrame = requestAnimationFrame(animate);
}
};
this.countdownAnimFrame = requestAnimationFrame(animate);
// Set the actual timer
this.autoAdvanceTimer = setTimeout(() => {
this.hideCountdownRing();
if (this.currentIndex < this.playlist.matches.length - 1) {
this.advanceTo(this.currentIndex + 1);
}
}, duration);
// Tap anywhere on the ring area to cancel
const cancelHandler = () => {
this.clearAutoAdvance();
this.hideCountdownRing();
this.countdownRing.removeEventListener('click', cancelHandler);
};
this.countdownRing.addEventListener('click', cancelHandler);
}
private showCountdownRing(): void {
this.countdownRing.style.display = 'flex';
this.countdownRing.style.opacity = '1';
const circle = this.countdownRing.querySelector('.carousel-countdown-circle') as SVGElement | null;
if (circle) {
const circumference = 2 * Math.PI * 14;
circle.style.strokeDasharray = String(circumference);
circle.style.strokeDashoffset = String(circumference);
}
}
private hideCountdownRing(): void {
this.countdownRing.style.opacity = '0';
if (this.countdownAnimFrame !== null) {
cancelAnimationFrame(this.countdownAnimFrame);
this.countdownAnimFrame = null;
}
// Keep display for fade-out transition
setTimeout(() => {
this.countdownRing.style.display = 'none';
}, 200);
}
private clearAutoAdvance(): void {
if (this.autoAdvanceTimer) {
clearTimeout(this.autoAdvanceTimer);
this.autoAdvanceTimer = null;
}
if (this.countdownAnimFrame !== null) {
cancelAnimationFrame(this.countdownAnimFrame);
this.countdownAnimFrame = null;
}
}
// ── Metadata panel ───────────────────────────────────────────────────────
private openMetadata(): void {
if (this.metadataOpen) return;
this.metadataOpen = true;
this.metadataPanel.style.transform = 'translateX(0)';
this.metadataPanel.style.opacity = '1';
this.carouselInner.classList.add('carousel-shifted');
}
private closeMetadata(): void {
if (!this.metadataOpen) return;
this.metadataOpen = false;
this.metadataPanel.style.transform = `translateX(${METADATA_PANEL_WIDTH}px)`;
this.metadataPanel.style.opacity = '0';
this.carouselInner.classList.remove('carousel-shifted');
}
// ── Card transitions ─────────────────────────────────────────────────────
private advanceTo(index: number): void {
if (index < 0 || index >= this.playlist.matches.length) return;
this.transitioning = true;
const direction = index > this.currentIndex ? 1 : -1;
this.currentIndex = index;
this.clearAutoAdvance();
this.hideCountdownRing();
if (REDUCED_MOTION) {
// Instant swap
this.stopDirectorTick();
this.loadCard(this.currentIndex).then(() => {
this.transitioning = false;
});
return;
}
// Animate out
this.carouselInner.classList.add(direction > 0 ? 'carousel-exit-up' : 'carousel-exit-down');
setTimeout(() => {
this.stopDirectorTick();
this.carouselInner.classList.remove('carousel-exit-up', 'carousel-exit-down');
this.carouselInner.classList.add(direction > 0 ? 'carousel-enter-up' : 'carousel-enter-down');
this.loadCard(this.currentIndex).then(() => {
setTimeout(() => {
this.carouselInner.classList.remove('carousel-enter-up', 'carousel-enter-down');
this.transitioning = false;
}, TRANSITION_MS);
});
}, TRANSITION_MS / 2);
}
// ── Director tick ────────────────────────────────────────────────────────
private startDirectorTick(): void {
this.stopDirectorTick();
const tick = () => {
if (!this.directorState.enabled || !this.viewer) return;
const now = performance.now();
const turn = this.viewer.getTurn();
const ms = tickDirectorSpeed(this.directorState, this.directorSchedule, turn, now);
this.viewer.setDirectorSpeed(ms);
this.directorAnimFrame = requestAnimationFrame(tick);
};
this.directorAnimFrame = requestAnimationFrame(tick);
}
private stopDirectorTick(): void {
if (this.directorAnimFrame !== null) {
cancelAnimationFrame(this.directorAnimFrame);
this.directorAnimFrame = null;
}
}
// ── Cleanup ──────────────────────────────────────────────────────────────
destroy(): void {
this.stopDirectorTick();
this.clearAutoAdvance();
if (this.viewer) {
this.viewer.pause();
this.viewer.destroy();
}
this.styleEl.remove();
this.overlay.remove();
document.body.style.overflow = '';
this.onClose();
}
}
// ── HTML template ──────────────────────────────────────────────────────────
const CAROUSEL_HTML = `
<div class="carousel-container">
<div class="carousel-header">
<span class="carousel-playlist-name"></span>
<span class="carousel-counter"></span>
</div>
<div class="carousel-card">
<canvas class="carousel-canvas"></canvas>
<div class="carousel-score-bar"></div>
<div class="carousel-event-hint"></div>
</div>
<div class="carousel-countdown-ring" style="display:none">
<svg viewBox="0 0 36 36" class="carousel-countdown-svg">
<circle class="carousel-countdown-bg" cx="18" cy="18" r="14"
fill="none" stroke="rgba(255,255,255,0.15)" stroke-width="2.5"/>
<circle class="carousel-countdown-circle" cx="18" cy="18" r="14"
fill="none" stroke="rgba(59,130,246,0.9)" stroke-width="2.5"
stroke-linecap="round"
transform="rotate(-90 18 18)"/>
</svg>
<span class="carousel-countdown-label">3</span>
</div>
<div class="carousel-swipe-hint">↑ swipe for next</div>
<div class="carousel-metadata-panel"></div>
<button class="carousel-close-btn" aria-label="Close carousel">✕</button>
</div>
`;
// ── CSS ────────────────────────────────────────────────────────────────────
const CAROUSEL_CSS = `
.carousel-overlay {
position: fixed;
inset: 0;
z-index: 1000;
background: #000;
display: flex;
flex-direction: column;
animation: carousel-fade-in 200ms ease-out;
}
@keyframes carousel-fade-in {
from { opacity: 0; }
to { opacity: 1; }
}
.carousel-container {
position: relative;
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
overflow: hidden;
}
.carousel-header {
position: absolute;
top: 0;
left: 0;
right: 0;
z-index: 10;
display: flex;
justify-content: space-between;
align-items: center;
padding: 12px 16px;
background: linear-gradient(to bottom, rgba(0,0,0,0.7) 0%, transparent 100%);
color: rgba(255,255,255,0.85);
font-size: 0.8rem;
pointer-events: none;
}
.carousel-playlist-name {
font-weight: 600;
}
.carousel-counter {
opacity: 0.7;
}
.carousel-card {
position: relative;
flex: 1;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
transition: transform ${TRANSITION_MS}ms ease-in-out, opacity ${TRANSITION_MS}ms ease-in-out;
will-change: transform, opacity;
-webkit-user-select: none;
user-select: none;
}
.carousel-card.carousel-shifted {
transform: translateX(-${METADATA_PANEL_WIDTH}px);
}
.carousel-canvas {
width: 100%;
height: 100%;
object-fit: contain;
display: block;
touch-action: none;
}
.carousel-score-bar {
position: absolute;
bottom: 80px;
left: 0;
right: 0;
z-index: 10;
text-align: center;
padding: 8px 16px;
background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 100%);
color: rgba(255,255,255,0.9);
font-size: 0.95rem;
font-weight: 600;
pointer-events: none;
}
.carousel-vs {
color: rgba(255,255,255,0.4);
margin: 0 6px;
font-size: 0.8rem;
}
.carousel-winner {
color: #22c55e;
}
.carousel-score-loading {
opacity: 0.5;
font-weight: 400;
}
.carousel-event-hint {
position: absolute;
bottom: 60px;
left: 0;
right: 0;
z-index: 10;
text-align: center;
padding: 4px 16px;
color: rgba(255,255,255,0.5);
font-size: 0.75rem;
pointer-events: none;
}
/* ── Countdown ring (auto-advance indicator) ── */
.carousel-countdown-ring {
position: absolute;
bottom: 120px;
left: 50%;
transform: translateX(-50%);
z-index: 15;
width: 48px;
height: 48px;
display: flex;
align-items: center;
justify-content: center;
transition: opacity 200ms ease-out;
cursor: pointer;
}
.carousel-countdown-svg {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
}
.carousel-countdown-bg {
/* static background ring */
}
.carousel-countdown-circle {
transition: stroke-dashoffset 0.1s linear;
}
.carousel-countdown-label {
position: relative;
z-index: 1;
color: rgba(255,255,255,0.9);
font-size: 0.85rem;
font-weight: 700;
font-family: monospace;
pointer-events: none;
}
/* ── Swipe hint ── */
.carousel-swipe-hint {
position: absolute;
bottom: 24px;
left: 0;
right: 0;
z-index: 10;
text-align: center;
color: rgba(255,255,255,0.35);
font-size: 0.75rem;
padding: 8px;
transition: opacity 1s ease-out;
pointer-events: none;
}
.carousel-hint-fade {
opacity: 0;
}
/* ── Metadata panel (revealed on horizontal swipe) ── */
.carousel-metadata-panel {
position: absolute;
top: 0;
right: 0;
bottom: 0;
width: ${METADATA_PANEL_WIDTH}px;
z-index: 20;
background: rgba(15, 15, 25, 0.95);
backdrop-filter: blur(8px);
-webkit-backdrop-filter: blur(8px);
padding: 60px 16px 16px;
transform: translateX(${METADATA_PANEL_WIDTH}px);
opacity: 0;
transition: transform ${TRANSITION_MS}ms ease-in-out, opacity ${TRANSITION_MS}ms ease-in-out;
color: rgba(255,255,255,0.85);
font-size: 0.85rem;
overflow-y: auto;
-webkit-overflow-scrolling: touch;
}
.carousel-meta-title {
font-size: 1rem;
font-weight: 600;
margin-bottom: 8px;
}
.carousel-meta-tag {
font-size: 0.7rem;
color: #94a3b8;
font-style: italic;
margin-bottom: 12px;
}
.carousel-meta-row {
display: flex;
justify-content: space-between;
padding: 6px 0;
border-bottom: 1px solid rgba(255,255,255,0.08);
}
.carousel-meta-row span:first-child {
color: rgba(255,255,255,0.5);
}
.carousel-meta-watch-full {
display: block;
width: 100%;
margin-top: 16px;
padding: 10px;
background: #3b82f6;
color: white;
border: none;
border-radius: 6px;
font-size: 0.85rem;
font-weight: 600;
cursor: pointer;
text-align: center;
}
.carousel-meta-watch-full:active {
opacity: 0.8;
}
/* ── Close button ── */
.carousel-close-btn {
position: absolute;
top: 12px;
right: 12px;
z-index: 30;
width: 36px;
height: 36px;
border-radius: 50%;
background: rgba(0,0,0,0.5);
border: none;
color: rgba(255,255,255,0.8);
font-size: 1.2rem;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
}
.carousel-close-btn:active {
background: rgba(0,0,0,0.8);
}
/* ── Exit/enter animations ── */
.carousel-exit-up {
animation: carousel-slide-out-up ${TRANSITION_MS}ms ease-in forwards;
}
.carousel-exit-down {
animation: carousel-slide-out-down ${TRANSITION_MS}ms ease-in forwards;
}
.carousel-enter-up {
animation: carousel-slide-in-up ${TRANSITION_MS}ms ease-out forwards;
}
.carousel-enter-down {
animation: carousel-slide-in-down ${TRANSITION_MS}ms ease-out forwards;
}
@keyframes carousel-slide-out-up {
from { transform: translateY(0); opacity: 1; }
to { transform: translateY(-100%); opacity: 0; }
}
@keyframes carousel-slide-out-down {
from { transform: translateY(0); opacity: 1; }
to { transform: translateY(100%); opacity: 0; }
}
@keyframes carousel-slide-in-up {
from { transform: translateY(100%); opacity: 0; }
to { transform: translateY(0); opacity: 1; }
}
@keyframes carousel-slide-in-down {
from { transform: translateY(-100%); opacity: 0; }
to { transform: translateY(0); opacity: 1; }
}
/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
.carousel-overlay {
animation: none;
}
.carousel-card {
transition: none !important;
}
.carousel-metadata-panel {
transition: none !important;
}
.carousel-exit-up,
.carousel-exit-down,
.carousel-enter-up,
.carousel-enter-down {
animation: none !important;
}
}
`;