Aleksander Grygier
8ab29faec4
* ui: land at the bottom of a conversation every time it opens Opening a long conversation often stopped short of its end: - the press grace counted from page load (pressedAt = 0), so a chat that landed within 400 ms of a refresh did not follow the rows realizing after the jump - the click that opened a chat (sidebar row, tab) started the same grace, so navigating by click had the same problem - any scroll event away from the bottom stopped following, including the ones the browser fires itself while the chat settles - the chat screen outlives its routes, so going back to the last landed conversation through the new-chat screen skipped the landing entirely scrollToBottom() now clears the grace, only an upward scroll away from the bottom stops following, and every navigation lands anew. Navigations into a chat also disable SvelteKit's scroll reset, which moved the previous conversation to its top for a few frames. Where overflow-anchor is supported, a 1px pin after the messages is the only scroll anchor while following, so the browser keeps the bottom in place itself; WebKit keeps the resize observer. Assisted-by: Claude (Opus 5.5 Medium) * ui: let nested agentic content scrollers chain to the chat Reasoning, shell output and code blocks used overscroll-behavior: contain, so the wheel stopped dead at their edges instead of scrolling the conversation. Assisted-by: Claude (Opus 5.5 Medium) * ui: stop following the stream as soon as the reader scrolls up A trackpad or smooth wheel scrolls in steps smaller than the at-bottom threshold, so each step up was re-stuck and snapped back on the next growth while a response streamed. Any upward move that is not content shrinking now releases at once. The attach effect also read the hook's own state, so every flip re-attached and re-measured, which undid such a release. Assisted-by: Claude (Opus 5.5 Medium)
304 lines
8.6 KiB
CSS
304 lines
8.6 KiB
CSS
@import 'tailwindcss';
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@source '.';
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@plugin '@tailwindcss/forms';
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@plugin '@tailwindcss/typography';
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@import 'tw-animate-css';
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@custom-variant dark (&:is(.dark *));
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/* shadcn components key their orientation styles off these, toggle-group among them */
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@custom-variant data-horizontal (&[data-orientation='horizontal']);
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@custom-variant data-vertical (&[data-orientation='vertical']);
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/*
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* Tailwind v4 dropped the pointer cursor from buttons. Every control a user can
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* press gets it back, and anything disabled keeps the cursor its own class asks for.
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*/
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@layer base {
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button:not(:disabled),
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[role='button']:not([data-disabled]),
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[role='checkbox']:not([data-disabled]),
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[role='combobox']:not([data-disabled]),
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[role='menuitem']:not([data-disabled]),
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[role='menuitemcheckbox']:not([data-disabled]),
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[role='menuitemradio']:not([data-disabled]),
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[role='option']:not([data-disabled]),
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[role='radio']:not([data-disabled]),
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[role='switch']:not([data-disabled]),
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[role='tab']:not([data-disabled]),
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label[for],
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select,
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summary {
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cursor: pointer;
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}
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}
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:root {
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--radius: 0.625rem;
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/* expanded desktop sidebar width, overridden once the user drags its edge */
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--sidebar-width: 18rem;
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--background: oklch(1 0 0);
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--foreground: oklch(0.145 0 0);
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--card: oklch(1 0 0);
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--card-foreground: oklch(0.145 0 0);
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--popover: oklch(1 0 0);
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--popover-foreground: oklch(0.145 0 0);
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--primary: oklch(0.205 0 0);
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--primary-foreground: oklch(0.985 0 0);
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--secondary: oklch(0.95 0 0);
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--secondary-foreground: oklch(0.205 0 0);
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--muted: oklch(0.97 0 0);
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--muted-foreground: oklch(0.556 0 0);
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--accent: oklch(0.95 0 0);
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--accent-foreground: oklch(0.205 0 0);
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--destructive: oklch(0.577 0.245 27.325);
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--border: oklch(0.875 0 0);
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--input: oklch(0.92 0 0);
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--ring: oklch(0.708 0 0);
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--chart-1: oklch(0.646 0.222 41.116);
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--chart-2: oklch(0.6 0.118 184.704);
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--chart-3: oklch(0.398 0.07 227.392);
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--chart-4: oklch(0.828 0.189 84.429);
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--chart-5: oklch(0.769 0.188 70.08);
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--sidebar: oklch(0.985 0 0);
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--sidebar-foreground: oklch(0.145 0 0);
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--sidebar-primary: oklch(0.205 0 0);
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--sidebar-primary-foreground: oklch(0.985 0 0);
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--sidebar-accent: oklch(0.97 0 0);
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--sidebar-accent-foreground: oklch(0.205 0 0);
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--sidebar-border: oklch(0.922 0 0);
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--sidebar-ring: oklch(0.708 0 0);
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--code-background: oklch(0.985 0 0);
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--code-foreground: oklch(0.145 0 0);
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--font-mono:
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ui-monospace, SFMono-Regular, 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas,
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'Liberation Mono', Menlo, monospace;
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--layer-popover: 1000000;
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--chat-form-area-height: 8rem;
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--chat-form-area-offset: 2rem;
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--chat-form-padding-top: 6rem;
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--max-message-height: max(24rem, min(80dvh, calc(100dvh - var(--chat-form-area-height) - 12rem)));
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}
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@media (min-width: 640px) {
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:root {
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--chat-form-area-height: 24rem;
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--chat-form-area-offset: 12rem;
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--chat-form-padding-top: 6rem;
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}
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}
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.dark {
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--background: oklch(0.16 0 0);
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--foreground: oklch(0.985 0 0);
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--card: oklch(0.205 0 0);
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--card-foreground: oklch(0.985 0 0);
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--popover: oklch(0.205 0 0);
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--popover-foreground: oklch(0.985 0 0);
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--primary: oklch(0.922 0 0);
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--primary-foreground: oklch(0.205 0 0);
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--secondary: oklch(0.29 0 0);
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--secondary-foreground: oklch(0.985 0 0);
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--muted: oklch(0.269 0 0);
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--muted-foreground: oklch(0.708 0 0);
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--accent: oklch(0.269 0 0);
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--accent-foreground: oklch(0.985 0 0);
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--destructive: oklch(0.704 0.191 22.216);
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--border: oklch(1 0 0 / 30%);
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--input: oklch(1 0 0 / 30%);
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--ring: oklch(0.556 0 0);
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--chart-1: oklch(0.488 0.243 264.376);
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--chart-2: oklch(0.696 0.17 162.48);
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--chart-3: oklch(0.769 0.188 70.08);
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--chart-4: oklch(0.627 0.265 303.9);
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--chart-5: oklch(0.645 0.246 16.439);
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--sidebar: oklch(0.2 0 0);
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--sidebar-foreground: oklch(0.985 0 0);
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--sidebar-primary: oklch(0.488 0.243 264.376);
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--sidebar-primary-foreground: oklch(0.985 0 0);
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--sidebar-accent: oklch(0.269 0 0);
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--sidebar-accent-foreground: oklch(0.985 0 0);
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--sidebar-border: oklch(1 0 0 / 10%);
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--sidebar-ring: oklch(0.556 0 0);
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--code-background: oklch(0.225 0 0);
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--code-foreground: oklch(0.875 0 0);
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}
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@theme inline {
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--radius-sm: calc(var(--radius) - 4px);
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--radius-md: calc(var(--radius) - 2px);
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--radius-lg: var(--radius);
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--radius-xl: calc(var(--radius) + 4px);
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--color-background: var(--background);
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--color-foreground: var(--foreground);
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--color-card: var(--card);
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--color-card-foreground: var(--card-foreground);
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--color-popover: var(--popover);
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--color-popover-foreground: var(--popover-foreground);
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--color-primary: var(--primary);
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--color-primary-foreground: var(--primary-foreground);
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--color-secondary: var(--secondary);
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--color-secondary-foreground: var(--secondary-foreground);
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--color-muted: var(--muted);
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--color-muted-foreground: var(--muted-foreground);
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--color-accent: var(--accent);
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--color-accent-foreground: var(--accent-foreground);
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--color-destructive: var(--destructive);
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--color-border: var(--border);
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--color-input: var(--input);
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--color-ring: var(--ring);
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--color-chart-1: var(--chart-1);
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--color-chart-2: var(--chart-2);
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--color-chart-3: var(--chart-3);
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--color-chart-4: var(--chart-4);
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--color-chart-5: var(--chart-5);
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--color-sidebar: var(--sidebar);
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--color-sidebar-foreground: var(--sidebar-foreground);
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--color-sidebar-primary: var(--sidebar-primary);
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--color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
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--color-sidebar-accent: var(--sidebar-accent);
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--color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
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--color-sidebar-border: var(--sidebar-border);
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--color-sidebar-ring: var(--sidebar-ring);
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}
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@layer base {
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* {
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@apply border-border outline-ring/50;
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}
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body {
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@apply bg-background text-foreground antialiased;
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scrollbar-width: thin;
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scrollbar-gutter: stable;
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}
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/* no elastic bounce past the ends of the page: it drags the sticky and
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fixed bars (tab bar, chat form) along and they jump back on release */
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html,
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body {
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overscroll-behavior: none;
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}
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/* same for dialogs, whose panels and lists scroll on their own with sticky
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headers and footers. Scroll containers only: Firefox treats an
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overflow-hidden box (truncated text) as one, and with `none` it would
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keep the wheel from reaching the list around it */
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:is([role='dialog'], [role='alertdialog']),
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:is([role='dialog'], [role='alertdialog'])
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:is(.overflow-auto, .overflow-y-auto, [data-slot='scroll-area-viewport']) {
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overscroll-behavior: none;
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}
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/* Global scrollbar styling - visible only on hover */
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* {
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scrollbar-width: thin;
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scrollbar-color: transparent transparent;
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}
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*:hover {
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scrollbar-color: hsl(var(--muted-foreground) / 0.3) transparent;
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}
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*::-webkit-scrollbar {
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width: 6px;
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height: 6px;
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}
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*::-webkit-scrollbar-track {
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background: transparent;
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}
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*::-webkit-scrollbar-thumb {
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background: transparent;
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border-radius: 3px;
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transition: background 0.2s ease;
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}
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*:hover::-webkit-scrollbar-thumb {
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background: hsl(var(--muted-foreground) / 0.3);
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}
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*::-webkit-scrollbar-thumb:hover {
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background: hsl(var(--muted-foreground) / 0.5);
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}
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:where(code, pre, kbd, samp) {
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font-family: var(--font-mono);
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}
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}
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@layer utilities {
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.scrollbar-hide {
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/* Hide scrollbar for Chrome, Safari and Opera */
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&::-webkit-scrollbar {
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display: none;
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}
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/* Hide scrollbar for IE, Edge and Firefox */
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-ms-overflow-style: none;
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scrollbar-width: none;
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}
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/* Fade at the top edge of the chat, under the tab bar or a sticky header */
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.chat-top-fade {
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background: linear-gradient(
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to bottom,
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color-mix(in srgb, var(--background) 100%, transparent) 25%,
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color-mix(in srgb, var(--background) 80%, transparent) 50%,
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color-mix(in srgb, var(--background) 40%, transparent) 75%,
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transparent 100%
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);
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}
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.shimmer-text {
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background: linear-gradient(
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90deg,
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var(--muted-foreground),
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var(--foreground),
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var(--muted-foreground)
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);
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background-size: 200% 100%;
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background-clip: text;
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-webkit-background-clip: text;
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-webkit-text-fill-color: transparent;
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font-weight: 500;
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animation: shimmer 1s linear infinite;
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}
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@keyframes shimmer {
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to {
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background-position: -200% 0;
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}
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}
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@media (prefers-reduced-motion: reduce) {
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.shimmer-text {
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animation: none;
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}
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}
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}
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.mermaidTooltip {
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display: none !important;
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}
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/*
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* While the page sticks to its bottom, the pin after the messages is its only
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* scroll anchor, so the browser keeps the bottom in place as content above it
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* grows or realizes its size. Browsers without overflow-anchor (WebKit) never
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* get the attribute, see createStickToBottom.
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*/
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[data-stick-to-bottom] * {
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overflow-anchor: none;
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}
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[data-stick-to-bottom] *:has(.stick-to-bottom-pin),
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[data-stick-to-bottom] .stick-to-bottom-pin {
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overflow-anchor: auto;
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}
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.stick-to-bottom-pin {
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height: 1px;
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}
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