113 lines
3.3 KiB
CSS
113 lines
3.3 KiB
CSS
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/*
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* Spielgruppe Pumuckl — Accessibility overrides for Chainlit
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*
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* Goals:
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* - WCAG 2.1 AA colour contrast (≥ 4.5:1 for normal text, ≥ 3:1 for large text)
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* - prefers-reduced-motion: replace animated typing dots with static indicator
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* - Skip-to-content link visible on keyboard focus
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* - iOS Safari virtual keyboard: use dynamic viewport height so input stays visible
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*/
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/* ─── Skip-to-content link ──────────────────────────────────────────────── */
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#skip-to-chat {
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position: absolute;
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top: -9999px;
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left: 8px;
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z-index: 9999;
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padding: 8px 16px;
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background: #1a56db; /* WCAG AA on white: contrast ≈ 5.9:1 */
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color: #ffffff;
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font-size: 1rem;
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font-weight: 600;
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border-radius: 4px;
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text-decoration: none;
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white-space: nowrap;
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}
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#skip-to-chat:focus {
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top: 8px;
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outline: 3px solid #f97316;
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outline-offset: 2px;
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}
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/* ─── Viewport height fix for iOS Safari virtual keyboard ───────────────── */
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/*
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* 100dvh (dynamic viewport height) shrinks when the virtual keyboard opens,
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* keeping the message input visible. Falls back to 100vh on older browsers.
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*/
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#root,
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.cl-app,
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[data-testid="layout"],
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.main-container {
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min-height: 100vh;
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min-height: 100dvh;
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}
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/* ─── Colour contrast overrides ─────────────────────────────────────────── */
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/*
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* Chainlit's default light theme uses mid-grey text (#6b7280) on white,
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* which gives ≈ 4.0:1 — below the 4.5:1 AA threshold for normal text.
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* Override to #595f6b which measures ≈ 4.6:1 on #ffffff.
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*
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* Chainlit's dark theme text is #d1d5db on #1c1c1e (≈ 10:1) — already passes.
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* We only override the light theme muted/secondary colour.
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*/
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/* Muted/secondary text — bump from #6b7280 (4.0:1) to #595f6b (≈ 4.6:1) */
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.text-gray-500,
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[class*="text-muted"],
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[class*="secondary"] {
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color: #595f6b !important;
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}
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/* Input placeholder — same issue; force dark enough value */
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input::placeholder,
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textarea::placeholder {
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color: #595f6b !important;
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opacity: 1; /* Firefox reduces opacity by default */
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}
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/* ─── Reduced-motion: replace animated typing dots with static "…" ──────── */
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/*
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* Chainlit shows a bouncing-dots animation while the agent is generating.
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* When prefers-reduced-motion is set, hide the animation and show "…" instead.
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*/
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@media (prefers-reduced-motion: reduce) {
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/* Hide animated dot elements (Chainlit uses span.dot or similar) */
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.typing-indicator span,
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.loader span,
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[class*="typing"] span,
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[class*="loader"] span,
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[class*="bounce"] {
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animation: none !important;
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visibility: hidden;
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}
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/* Show a static ellipsis as the parent container's content */
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.typing-indicator::after,
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.loader::after,
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[class*="typing"]::after,
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[class*="loader"]::after {
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content: "…";
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visibility: visible;
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display: inline-block;
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color: inherit;
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font-size: 1.25rem;
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line-height: 1;
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letter-spacing: 0.05em;
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}
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/* Suppress all other CSS transitions and animations */
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*,
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*::before,
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*::after {
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animation-duration: 0.01ms !important;
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animation-iteration-count: 1 !important;
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transition-duration: 0.01ms !important;
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scroll-behavior: auto !important;
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}
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}
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