/*
 * static/css/app.css — the whole stylesheet. No build step.
 *
 * The design system (DESIGN.md): tokens on :root, components below that use
 * only tokens, and every component on the design page at /app/design/.
 * Dark mode redefines the tokens, never the components.
 */

:root {
  /* Colour. Text tokens keep 4.5:1 on --bg and --card. */
  --brand: #1C1B1A;
  --brand-text: #ffffff;
  --brand-text-soft: rgb(255 255 255 / 35%);
  --brand-text-2: #c9c4b8;
  --accent: #f5c22b;
  /* Buttons and links: the brand in light mode, cream in dark so they still show. */
  --action: #1C1B1A;
  --action-text: #ffffff;
  --bg: #f6f7f9;
  --card: #ffffff;
  --text-1: #14171a;
  --text-2: #4b5563;
  --border: #d9dde3;
  --warn-bg: #fff4d6;
  --warn-text: #6b4e00;
  --error: #b42318;

  /* Type: one family, eight sizes. */
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --type-sm: 0.8125rem;
  --type-base: 1rem;
  --type-md: 1.0625rem;
  --type-lg: 1.125rem;
  --type-xl: 1.375rem;
  --type-2xl: 1.5rem;
  --type-3xl: 2rem;
  --type-4xl: 2.75rem;
  --leading: 1.5;

  /* Space: the shared 4px scale (DESIGN.md); use only these. */
  --space-2xs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-2xl: 24px;
  --space-3xl: 32px;

  /* Shape. */
  --radius-control: 8px;
  --radius-card: 12px;
  --radius-round: 50%;
  --radius-icon: 22%;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #181b21;
    --text-1: #eef1f4;
    --text-2: #a3abb7;
    --border: #2b3038;
    --warn-bg: #3a2f10;
    --warn-text: #f5d77a;
    --error: #f97066;
    --action: #eeeae1;
    --action-text: #14171a;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-1);
  font: var(--type-base) / var(--leading) var(--font);
  -webkit-text-size-adjust: 100%;
}

h1 { font-size: var(--type-xl); margin: 0; }
h2 { font-size: var(--type-md); margin: 0; }
a { color: var(--action); }
.meta { color: var(--text-2); font-size: var(--type-sm); }
.stack > * + * { margin-top: var(--space-lg); }

/* Layout */

.app-header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-sm) var(--space-lg);
  padding-top: max(var(--space-sm), env(safe-area-inset-top));
  background: var(--brand);
  color: var(--brand-text);
}
.app-header__name {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-right: auto;
  color: inherit;
  font-weight: 600;
  text-decoration: none;
}
/* The wordmark: the R tile and the name, drawn by bin/shoot-icons. */
.app-header__mark { display: block; }
.app-header form { margin: 0; }
.app-header .button--quiet { color: inherit; }
.app-header__link { color: inherit; font-weight: 600; text-decoration: none; }
.app-main { max-width: 40rem; margin: 0 auto; padding: var(--space-lg); }
.app-main > * + * { margin-top: var(--space-lg); }
/* Pages that draw the board take more width, for bigger tiles. */
.app-main--wide { max-width: 64rem; }

/* The website's footer (DESIGN.md): links and copyright. */
.site-footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  max-width: 40rem;
  margin: var(--space-2xl) auto 0;
  padding: var(--space-lg);
  padding-bottom: max(var(--space-lg), env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  font-size: var(--type-sm);
}
.site-footer__links { display: flex; flex-wrap: wrap; column-gap: var(--space-lg); }
/* 44px tall to tap, without spreading the row. */
.site-footer__links a { min-height: 44px; display: inline-flex; align-items: center; color: var(--text-1); }
.site-footer__legal { margin: 0; color: var(--text-2); }
/* The same links on the app's account page, one to a row. */
.site-links { list-style: none; margin: 0; padding: 0; }
.site-links li + li { border-top: 1px solid var(--border); }
.site-links a { min-height: 44px; display: flex; align-items: center; color: var(--text-1); }

/* The front page (DESIGN.md, "The front page"), top to bottom. */

.eyebrow {
  margin: 0;
  color: var(--text-2);
  font-size: var(--type-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
/* An eyebrow sits tight on what it labels, and opens a new part of a card with room. */
.stack > .eyebrow + * { margin-top: var(--space-xs); }
.stack > * + .eyebrow { margin-top: var(--space-2xl); }
.hero { padding: var(--space-3xl) 0 var(--space-lg); }
.hero h1 { font-size: var(--type-3xl); }
.hero__lead { font-size: var(--type-lg); color: var(--text-2); margin: 0; }
.hero__note { margin-top: var(--space-sm); color: var(--text-2); font-size: var(--type-sm); text-align: center; }

/* The front page's proposition on the board's charcoal, full width, with
   the product under it: the board itself (board.css), as wide as it fits. */
.hero--dark {
  padding: var(--space-3xl) var(--space-lg);
  background: var(--brand);
  color: var(--brand-text);
  text-align: center;
}
.hero__body { max-width: 40rem; margin: 0 auto; }
.hero--dark .hero__lead, .hero--dark .hero__note { color: var(--brand-text-2); }
.hero__board { max-width: 60rem; margin: var(--space-3xl) auto 0; }
.hero__caption {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs) var(--space-lg);
  margin-top: var(--space-lg);
  color: var(--brand-text-2);
  font-size: var(--type-sm);
}

/* The flap sound's toggle, under the board: off by default, the accent when on. */
.sound-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  min-height: 44px;
  padding: 0 var(--space-sm);
  border: 0;
  border-radius: var(--radius-control);
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}
.sound-toggle[hidden] { display: none; }
.sound-toggle[aria-pressed="true"] { color: var(--accent); }
.sound-toggle__icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sound-toggle[aria-pressed="true"] .sound-toggle__off,
.sound-toggle[aria-pressed="false"] .sound-toggle__waves { display: none; }
@media (min-width: 40rem) {
  .hero--dark h1 { font-size: var(--type-4xl); line-height: 1.1; text-wrap: balance; }
}

/* How it works: three tiles, one under another on a phone. */
.tiles { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-md); }
.tile {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
}
.tile__icon { width: 24px; height: 24px; color: var(--action); }
.tile__title { margin: var(--space-xs) 0 0; font-weight: 600; }
.tile .meta { margin: var(--space-2xs) 0 0; }
@media (min-width: 40rem) {
  .tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* A made-up exchange with an AI chat, over the connector. */
.chat {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-control);
  background: var(--bg);
  font-size: var(--type-sm);
}
.chat__you, .chat__reply { max-width: 85%; margin: 0; padding: var(--space-sm) var(--space-md); border-radius: var(--radius-card); }
.chat__you { align-self: flex-end; background: var(--text-1); color: var(--card); }
.chat__reply { background: var(--card); border: 1px solid var(--border); }

/* Things to ask: quoted, not chips, since nothing here is tapped. */
.asks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-xs); }
.asks li { padding-left: var(--space-md); border-left: 2px solid var(--action); }
.asks li::before { content: "\201C"; }
.asks li::after { content: "\201D"; }

/* An address to copy, and its button (js/copy.js shows it). */
.copy-field { display: flex; align-items: center; gap: var(--space-sm); }
.copy-field__value {
  flex: 1;
  min-width: 0;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-control);
  background: var(--bg);
  font-size: var(--type-sm);
  overflow-wrap: anywhere;
}

/* The closing action: the promise again, and the same way in. */
.closing { padding: var(--space-2xl) 0; text-align: center; }
.closing h2 { font-size: var(--type-2xl); }

.prose { max-width: 40rem; }
.prose h2 { margin-top: var(--space-2xl); }
.prose h3 { margin: var(--space-lg) 0 0; font-size: var(--type-base); }
.prose p, .prose ul, .prose ol { margin: var(--space-sm) 0 0; }

.notice {
  margin: 0 0 var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-control);
  background: var(--warn-bg);
  color: var(--warn-text);
  font-size: var(--type-sm);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
}

/* Controls */

.field { display: block; }
.field__label { display: block; font-weight: 600; margin-bottom: var(--space-xs); }
input[type="text"], input[type="email"], input[type="password"], textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--card);
  color: var(--text-1);
  font: inherit;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--space-sm) var(--space-lg);
  border: 0;
  border-radius: var(--radius-control);
  background: var(--action);
  color: var(--action-text);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.button--quiet { background: transparent; color: var(--action); padding-inline: var(--space-sm); }
.button--block { display: flex; align-items: center; justify-content: center; width: 100%; }
.button--accent { background: var(--accent); color: var(--brand); }
.button--secondary { background: transparent; color: var(--action); box-shadow: inset 0 0 0 2px var(--action); }
.button--danger { background: transparent; color: var(--error); box-shadow: inset 0 0 0 2px var(--error); }
.button:disabled { opacity: 0.6; cursor: progress; }
/* mcp_auth's pages (templates/mcp_auth/): its buttons carry no classes, so style them here */
.mcp-auth form button { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 44px; margin-top: var(--space-sm); padding: var(--space-sm) var(--space-lg); border: 0; border-radius: var(--radius-control); background: var(--action); color: var(--action-text); font: inherit; font-weight: 600; cursor: pointer; }
.mcp-auth .mcp-auth-cancel { background: transparent; color: var(--action); box-shadow: inset 0 0 0 2px var(--action); }
.mcp-auth .mcp-auth-account p { color: var(--text-2); font-size: var(--type-sm); }
.mcp-auth .mcp-auth-account button { display: inline; width: auto; margin: 0; padding: 0; background: none; color: var(--action); font-weight: inherit; text-decoration: underline; }
.input--code { max-width: 12rem; font-size: var(--type-2xl); letter-spacing: 0.3em; font-variant-numeric: tabular-nums; }
/* The sign-in code as six boxes, one digit each (static/js/code_input.js) */
.code-boxes { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: var(--space-sm); max-width: 24rem; }
input.code-box {
  height: 56px;
  padding: 0;
  font-size: var(--type-2xl);
  font-variant-numeric: tabular-nums;
  text-align: center;
  caret-color: var(--action);
}
input.code-box:focus { border-color: var(--action); outline: 2px solid var(--action); outline-offset: -1px; }
.errorlist { color: var(--error); padding-left: var(--space-2xl); margin: var(--space-xs) 0 0; }
.form-error { color: var(--error); margin: 0; }

/* The display and its boards (apps/boards). The board itself is drawn by preview.css. */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  min-height: 44px;
  color: var(--text-2);
  font-weight: 600;
  text-decoration: none;
}
.back-link svg { width: 16px; height: 16px; }

/* Two columns on a wide screen; .split__side sits beside the first two. */
.split { display: grid; gap: var(--space-lg); }
@media (min-width: 56rem) {
  .split { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); grid-template-rows: auto 1fr; align-items: start; }
  .split__side { grid-column: 2; grid-row: 1 / span 2; }
}

/* A square button with only an icon; its name is in aria-label. */
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--card);
  color: var(--text-1);
  cursor: pointer;
}
.icon-button svg { width: 18px; height: 18px; }
.icon-button:disabled { opacity: 0.4; cursor: default; }
.icon-button--round { border-radius: var(--radius-round); }

/* The row under the display's board: Replay, when posted, sound. */
.control-strip { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-md); }
.control-strip form { margin: 0; }
.control-strip__status { flex: 1 1 10rem; margin: 0; }

/* A setting: its name and a line on what it does, with its control beside them. */
.setting { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); margin: 0; }
.setting__text { display: flex; flex-direction: column; min-width: 0; }

/* An on/off switch (role="switch"); aria-checked says which, and the word beside it repeats it. */
.switch {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: var(--space-sm);
  min-height: 44px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--text-2);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.switch__track {
  position: relative;
  width: 44px;
  height: 24px;
  border-radius: var(--radius-card);
  background: var(--border);
}
.switch__track::after {
  content: "";
  position: absolute;
  top: var(--space-2xs);
  left: var(--space-2xs);
  width: 20px;
  height: 20px;
  border-radius: var(--radius-round);
  background: var(--text-2);
}
.switch__state { min-width: 2em; }
.switch[aria-checked="true"] { color: var(--text-1); }
.switch[aria-checked="true"] .switch__track { background: var(--action); }
.switch[aria-checked="true"] .switch__track::after { background: var(--action-text); transform: translateX(20px); }
.switch:focus-visible { outline: 2px solid var(--action); outline-offset: 2px; border-radius: var(--radius-control); }

/* Buttons side by side, wrapping on a phone. */
.button-row { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin: 0; }
.button-row--fixed { flex-wrap: nowrap; align-items: center; }

/* A text field and its button on one line, wrapping on a phone. */
.inline-form { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-sm); margin: 0; }
.inline-form .field { flex: 1 1 14rem; }

/* The board editor: the message box and the palette beside it, then its actions. */
.editor__body { display: flex; flex-wrap: wrap; gap: var(--space-2xl); margin-top: var(--space-md); }
.editor__text { flex: 1 1 22rem; max-width: 29rem; }
.editor__counts {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  margin: var(--space-xs) 0 0;
  color: var(--text-2);
  font-size: var(--type-sm);
}
.editor__count--over { color: var(--error); font-weight: 600; }
.editor__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

/* Colour tiles and pictograms, each a key that adds its code to the message. */
.palette { flex: 1 1 16rem; }
.palette__keys { display: grid; grid-template-columns: repeat(auto-fill, 44px); gap: var(--space-xs); margin-top: var(--space-xs); }
.palette__key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--card);
  color: var(--text-1);
  cursor: pointer;
}
.palette__key svg { width: 20px; height: 20px; }

/* Lists of things with an action on each row (passkeys) */

.item-list { list-style: none; margin: 0; padding: 0; }
.item { display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg); padding: var(--space-md) 0; }
.item + .item { border-top: 1px solid var(--border); }
.item__title { margin: 0; font-weight: 600; }
.item .meta { margin: var(--space-2xs) 0 0; }
/* A row that opens a page, with its own actions beside it. */
.item__main { flex: 1; min-width: 0; color: inherit; text-decoration: none; }
.item__main > * { display: block; }
.item__main .meta { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.item__actions { display: flex; gap: var(--space-xs); }
.item__main[aria-current="page"] { margin: 0 calc(-1 * var(--space-sm)); padding: var(--space-xs) var(--space-sm); border-radius: var(--radius-control); background: var(--action); color: var(--action-text); }

/* Notes */

.note-list { list-style: none; margin: 0; padding: 0; }
.note + .note { border-top: 1px solid var(--border); }
.note { padding: var(--space-md) 0; }
.note__text { margin: 0; overflow-wrap: anywhere; }
.note__meta { margin: var(--space-xs) 0 0; color: var(--text-2); font-size: var(--type-sm); }
.note--pending { opacity: 0.7; }
.note--failed .note__meta { color: var(--error); }
.note__actions { display: flex; gap: var(--space-sm); margin-top: var(--space-sm); }
.note--empty { color: var(--text-2); }
/* A note waiting to send means the list isn't empty, whatever the server last said. */
[data-pending-notes]:not(:empty) ~ #note-items .note--empty { display: none; }

/* Offline and outbox state */

.offline-banner {
  padding: var(--space-sm) var(--space-lg);
  background: var(--warn-bg);
  color: var(--warn-text);
  font-size: var(--type-sm);
}
.outbox-status { font-size: var(--type-sm); }
.outbox-status:empty { display: none; }

/* The design page (apps/design): token samples, painted by js/design.js. */

.ds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
  gap: var(--space-md);
  margin: 0;
  padding: 0;
  list-style: none;
}
.ds-token { display: flex; flex-direction: column; gap: var(--space-xs); font-size: var(--type-sm); }
.ds-swatch { height: 3rem; border: 1px solid var(--border); border-radius: var(--radius-control); }
.ds-corner { width: 4rem; height: 4rem; background: var(--bg); border: 1px solid var(--border); }
.ds-depth { width: 6rem; height: 4rem; background: var(--card); border-radius: var(--radius-card); }
.ds-bar { height: var(--space-md); background: var(--brand); }
.ds-sample { margin: 0; }
.ds-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-sm); }

/* htmx request indicator (htmx's own injected styles are off, for the CSP) */

.htmx-indicator { opacity: 0; transition: opacity 200ms ease-in; }
.htmx-request .htmx-indicator, .htmx-request.htmx-indicator { opacity: 1; }

/*
 * Launch screen. Hidden unless js/launch_gate.js put .app-launching on <html>
 * before first paint. js/launch_shell.js fades it out; the failsafe keyframe
 * hides it at 10s whether or not any script ran, because a launch screen
 * that never leaves is worse than none.
 */

.launch-shell { display: none; }
.app-launching .launch-shell {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  background: var(--brand);
  transition: opacity 300ms ease-out;
  animation: launch-failsafe 0s linear 10s forwards;
}
.app-launching .launch-shell.launch-shell--done { opacity: 0; pointer-events: none; }
.launch-shell__icon { border-radius: var(--radius-icon); }
.launch-shell__spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--brand-text-soft);
  border-top-color: var(--brand-text);
  border-radius: var(--radius-round);
  animation: spin 800ms linear infinite;
}

@keyframes launch-failsafe { to { visibility: hidden; opacity: 0; } }
@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .app-launching .launch-shell { transition: none; }
  .launch-shell__spinner { animation-duration: 2400ms; }
}