/*
 * play.unswell.dev
 *
 * One page, one light palette, two typefaces. The palette is declared once here
 * and used by name everywhere; a color that appears as a literal below the
 * token block is a mistake.
 *
 * The two faces are not decoration. Crimson Pro carries prose -- the headline,
 * the document in Markdown mode, and the note messages -- because those are the
 * thing being judged. IBM Plex Mono carries everything that is machinery: the
 * chrome, the labels, the scores, the rule ids, and the document itself in
 * Python mode, where the text IS code.
 */

/* ---------- Fonts ---------- */

@font-face {
  font-family: "Crimson Pro";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url(fonts/crimson-pro-var-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Crimson Pro";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url(fonts/crimson-pro-var-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Crimson Pro";
  font-style: italic;
  font-weight: 300 700;
  font-display: swap;
  src: url(fonts/crimson-pro-var-italic-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Crimson Pro";
  font-style: italic;
  font-weight: 300 700;
  font-display: swap;
  src: url(fonts/crimson-pro-var-italic-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-400-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-400-symbols.woff2) format("woff2");
  unicode-range: U+2010-2027, U+2030-205E, U+2190-21BB, U+2500-2570, U+25A0-25FF;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-500-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-500-symbols.woff2) format("woff2");
  unicode-range: U+2010-2027, U+2030-205E, U+2190-21BB, U+2500-2570, U+25A0-25FF;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-600-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(fonts/ibm-plex-mono-600-symbols.woff2) format("woff2");
  unicode-range: U+2010-2027, U+2030-205E, U+2190-21BB, U+2500-2570, U+25A0-25FF;
}

/* ---------- Tokens ---------- */

:root {
  --ink: #1b1f22;
  --muted: #5c6664;
  --faint: #7a8482;
  --hairline: #d9dddb;
  --border-light: #e7eae9;
  --page: #f3f4f3;
  --card: #ffffff;
  --aside: #f8f9f8;
  --teal-dark: #1f6f73;
  --teal-bright: #5fb3b3;

  --forbid: #a23b2b;
  --forbid-tint: #fbe4df;
  --warning: #9a6b00;
  --warning-tint: #fbefd3;
  --info: #1f6f73;
  --info-tint: #e3eef0;
  --pass: #2e7d4f;
  --inert: #b8c0bd;
  --dim: #8a9391;

  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text: "Crimson Pro", Georgia, "Times New Roman", serif;

  color-scheme: light;
}

/* ---------- Reset ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

button {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--teal-dark);
  outline-offset: 2px;
  border-radius: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10;
  background: var(--card);
  padding: 10px 14px;
  border: 1px solid var(--hairline);
  font-size: 12px;
  text-decoration: none;
}

.skip:focus {
  left: 12px;
  top: 12px;
}

/* ---------- Header ---------- */

.site-header {
  flex: 0 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding-inline: 24px;
  background: var(--page);
  border-bottom: 1px solid var(--hairline);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
}

.wordmark {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.wordmark-un {
  color: var(--ink);
}

.wordmark-swell {
  color: var(--teal-dark);
}

.header-tag {
  font-size: 12px;
  color: var(--faint);
}

.header-nav {
  margin-left: auto;
  display: flex;
  gap: 18px;
}

.header-nav a {
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
}

.header-nav a:hover {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Shell ---------- */

.shell {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 26px 24px 18px;
}

/* ---------- Headline and engine strip ---------- */

.intro {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  gap: 28px;
  align-items: start;
}

.intro h1 {
  margin: 0 0 8px;
  font-family: var(--text);
  font-weight: 400;
  font-size: clamp(26px, 2.6vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.intro p {
  margin: 0;
  max-width: 56ch;
  font-family: var(--text);
  font-size: 17px;
  line-height: 1.5;
  color: var(--muted);
}

.engine {
  position: relative;
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: 5px;
  padding: 11px 13px;
  font-size: 12px;
  overflow: hidden;
  color: var(--inert);
}

.engine-glyph {
  flex: none;
  transition: color 0.4s ease;
}

.engine-label {
  color: var(--ink);
  font-weight: 500;
}

.engine-detail {
  text-align: right;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.engine-track {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--border-light);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.engine-fill {
  height: 100%;
  width: 0;
  background: var(--teal-bright);
  transition: width 0.15s linear;
}

.engine[data-state="loading"] {
  color: var(--teal-bright);
}

.engine[data-state="loading"] .engine-track {
  opacity: 1;
}

.engine[data-state="loading"] .engine-glyph {
  animation: engine-pulse 1.4s ease-in-out infinite;
}

.engine[data-state="ready"] {
  color: var(--teal-dark);
}

.engine[data-state="busy"] {
  color: var(--teal-bright);
}

.engine[data-state="busy"] .engine-glyph {
  animation: engine-pulse 0.9s ease-in-out infinite;
}

.engine[data-state="failed"] {
  color: var(--forbid);
  border-color: var(--forbid);
  background: var(--forbid-tint);
}

.engine[data-state="failed"] .engine-detail {
  color: var(--forbid);
  white-space: normal;
}

@keyframes engine-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ---------- Toolbar ---------- */

.toolbar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.segmented {
  display: inline-flex;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  overflow: hidden;
  background: var(--card);
}

.segmented button {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
}

.segmented button + button {
  border-left: 1px solid var(--hairline);
}

.segmented button:hover {
  color: var(--ink);
}

.segmented button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--page);
}

.btn {
  appearance: none;
  border: 1px solid var(--hairline);
  background: var(--card);
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
}

.btn:hover:not(:disabled) {
  color: var(--ink);
  border-color: var(--faint);
}

.btn:disabled {
  opacity: 0.45;
  cursor: default;
}

.btn-quiet {
  border-color: transparent;
  background: transparent;
}

.btn-quiet:hover:not(:disabled) {
  border-color: var(--hairline);
}

.btn-primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--page);
  border-radius: 999px;
  padding: 7px 16px;
  font-weight: 500;
}

.btn-primary:hover:not(:disabled) {
  background: #000;
  border-color: #000;
  color: var(--page);
}

.btn-primary kbd {
  font: inherit;
  opacity: 0.6;
  margin-left: 4px;
}

.toolbar-spacer {
  flex: 1 1 auto;
}

.wordcount {
  font-size: 12px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

/* ---------- Workbench ---------- */

.workbench {
  flex: 1 1 auto;
  min-height: 320px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  box-shadow: 0 30px 60px -40px rgba(27, 31, 34, 0.35);
  overflow: hidden;
}

.workbench:focus {
  outline: none;
}

/* ---------- Document pane ---------- */

.pane {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow-y: auto;
  padding: 30px 40px 40px 52px;
}

/* [hidden] is display:none in the UA sheet, and display:flex below would beat
   it. The page toggles these two with .hidden, so the override has to be
   explicit or the editor stays rendered underneath the report. */
.edit[hidden],
.report[hidden] {
  display: none !important;
}

.edit {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

#input {
  flex: 1 1 auto;
  width: 100%;
  min-height: 220px;
  border: 0;
  padding: 0;
  margin: 0;
  resize: none;
  background: transparent;
  color: var(--ink);
  font-family: var(--text);
  font-size: 21px;
  line-height: 1.6;
  outline: none;
}

#input::placeholder {
  color: var(--inert);
}

body[data-format="python"] #input {
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7;
  white-space: pre-wrap;
  tab-size: 4;
}

.hint {
  flex: none;
  margin: 18px 0 0;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--faint);
}

.hint kbd {
  font: inherit;
}

/* ---------- Report ---------- */

.report {
  font-family: var(--text);
  font-size: 21px;
  line-height: 1.6;
}

body[data-format="python"] .report {
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7;
}

/* Each paragraph carries its own gutter: a score and a bar whose color is the
   score. The gutter sits in the pane's left padding, so the prose measure is
   unaffected by whether a paragraph has a score at all. */
.para {
  position: relative;
  margin: 0 0 1.1em;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  animation: para-rise 0.34s cubic-bezier(0.2, 0.7, 0.3, 1) backwards;
}

.para:last-child {
  margin-bottom: 0;
}

@keyframes para-rise {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* The gutter lives in the pane's left padding, so a paragraph with a score and
   one without have the same measure. Score first, then the bar, so the bar is
   the thing next to the text it describes. */
.para-gutter {
  position: absolute;
  left: -44px;
  top: 0.34em;
  bottom: 0.2em;
  width: 36px;
  display: flex;
  align-items: stretch;
  gap: 5px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  user-select: none;
}

.para-bar {
  flex: none;
  width: 2px;
  align-self: stretch;
  border-radius: 1px;
  background: var(--inert);
}

.para[data-band="low"] .para-bar { background: var(--pass); }
.para[data-band="mid"] .para-bar { background: var(--warning); }
.para[data-band="high"] .para-bar { background: var(--forbid); }

.para-score {
  flex: 1 1 auto;
  text-align: right;
  line-height: 1;
  white-space: nowrap;
}

/* Code that was never checked. Not greyed out to hide it -- greyed out to say
   the engine did not look at it, which is the whole point in Python mode. */
.code-dim {
  color: var(--dim);
}

/* A mark. The fill says "this exact wording"; the index says which note. */
.mark {
  border-radius: 3px;
  padding: 0.06em 0;
  cursor: pointer;
  scroll-margin-block: 40px;
  transition: background-color 0.14s ease, color 0.14s ease, box-shadow 0.14s ease;
}

.mark-forbid { background: var(--forbid-tint); }
.mark-warning { background: var(--warning-tint); }
.mark-info { background: var(--info-tint); }

.mark-index {
  font-family: var(--mono);
  font-size: 0.52em;
  font-weight: 500;
  vertical-align: super;
  line-height: 0;
  margin-left: 1px;
  user-select: none;
}

.mark-forbid .mark-index { color: var(--forbid); }
.mark-warning .mark-index { color: var(--warning); }
.mark-info .mark-index { color: var(--info); }

/* A span that covers a whole sentence or a whole paragraph is not a phrase, so
   it is not filled: a wide block of color would claim the rule objected to
   every word in it. An underline says "this stretch", which is what the rule
   said. */
.mark.is-stretch {
  background: none;
  text-decoration-line: underline;
  text-decoration-style: dotted;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 4px;
}

.mark.is-stretch.mark-forbid { text-decoration-color: var(--forbid); }
.mark.is-stretch.mark-warning { text-decoration-color: var(--warning); }
.mark.is-stretch.mark-info { text-decoration-color: var(--info); }

.mark.is-active {
  color: var(--page);
  box-shadow: 0 0 0 2px currentColor;
}

.mark.is-active .mark-index {
  color: var(--page);
}

.mark-forbid.is-active { background: var(--forbid); box-shadow: 0 0 0 2px var(--forbid); }
.mark-warning.is-active { background: var(--warning); box-shadow: 0 0 0 2px var(--warning); }
.mark-info.is-active { background: var(--info); box-shadow: 0 0 0 2px var(--info); }

.mark.is-stretch.is-active {
  color: var(--page);
  text-decoration-line: none;
}

/* The scanning sweep, over the pane while the engine is working. */
.sweep {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background: linear-gradient(
    180deg,
    rgba(95, 179, 179, 0) 0%,
    rgba(95, 179, 179, 0.16) 45%,
    rgba(95, 179, 179, 0.3) 50%,
    rgba(95, 179, 179, 0.16) 55%,
    rgba(95, 179, 179, 0) 100%
  );
  background-size: 100% 34%;
  background-repeat: no-repeat;
}

.is-analyzing .sweep {
  opacity: 1;
  animation: sweep-scan 1.1s linear infinite;
}

@keyframes sweep-scan {
  from { background-position: 0 -40%; }
  to { background-position: 0 140%; }
}

/* ---------- Notes rail ---------- */

.rail {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--aside);
  border-left: 1px solid var(--border-light);
}

.rail-head {
  flex: none;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--border-light);
  font-size: 11px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

.rail-count {
  margin-left: auto;
  letter-spacing: 0.05em;
  color: var(--faint);
  text-transform: none;
  font-variant-numeric: tabular-nums;
}

.rail-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 14px 16px 20px;
}

.rail-empty {
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--faint);
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 14px;
}

.stat {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: 5px;
  padding: 9px 10px;
}

.stat-label {
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.stat-value {
  margin-top: 3px;
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.stat-value.is-pass { color: var(--pass); }
.stat-value.is-fail { color: var(--forbid); }

.stat-note {
  margin-top: 1px;
  font-size: 10.5px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.stat-track {
  margin-top: 6px;
  height: 2px;
  background: var(--border-light);
  border-radius: 1px;
  overflow: hidden;
}

.stat-fill {
  height: 100%;
  background: var(--inert);
}

.stat-fill[data-band="low"] { background: var(--pass); }
.stat-fill[data-band="mid"] { background: var(--warning); }
.stat-fill[data-band="high"] { background: var(--forbid); }

.note {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 9px;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: 5px;
  padding: 10px 11px;
  margin-bottom: 8px;
  cursor: pointer;
  scroll-margin-block: 16px;
  transition: border-color 0.14s ease, box-shadow 0.14s ease;
}

.note:hover {
  border-color: var(--hairline);
}

.note.is-active {
  border-color: currentColor;
  box-shadow: 0 0 0 1px currentColor;
}

.note-forbid.is-active { color: var(--forbid); }
.note-warning.is-active { color: var(--warning); }
.note-info.is-active { color: var(--info); }

.note-badge {
  grid-row: 1 / span 3;
  width: 19px;
  height: 19px;
  display: grid;
  place-items: center;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.note-forbid .note-badge { background: var(--forbid-tint); color: var(--forbid); }
.note-warning .note-badge { background: var(--warning-tint); color: var(--warning); }
.note-info .note-badge { background: var(--info-tint); color: var(--info); }

.note-rule {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--faint);
  overflow-wrap: anywhere;
}

.note-message {
  font-family: var(--text);
  font-size: 15px;
  line-height: 1.4;
  color: var(--ink);
  margin-top: 2px;
}

.note-meta {
  margin-top: 5px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.note-meta .sev-forbid { color: var(--forbid); }
.note-meta .sev-warning { color: var(--warning); }
.note-meta .sev-info { color: var(--info); }

.note-clean {
  display: grid;
  gap: 6px;
  padding: 14px 12px;
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: 5px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.note-clean strong {
  color: var(--pass);
  font-weight: 600;
}

.rail-error {
  padding: 12px;
  border: 1px solid var(--forbid);
  background: var(--forbid-tint);
  border-radius: 5px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--forbid);
  overflow-wrap: anywhere;
}

/* ---------- Legend and footer ---------- */

.legend {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 11.5px;
  color: var(--faint);
}

.swatch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.swatch::before {
  content: "";
  width: 11px;
  height: 11px;
  border-radius: 2px;
}

.swatch-forbid { color: var(--forbid); }
.swatch-forbid::before { background: var(--forbid-tint); box-shadow: inset 0 0 0 1px var(--forbid); }
.swatch-warning { color: var(--warning); }
.swatch-warning::before { background: var(--warning-tint); box-shadow: inset 0 0 0 1px var(--warning); }
.swatch-info { color: var(--info); }
.swatch-info::before { background: var(--info-tint); box-shadow: inset 0 0 0 1px var(--info); }

.legend-code {
  color: var(--dim);
}

.legend-spacer {
  flex: 1 1 auto;
}

.legend-note {
  color: var(--faint);
}

.site-footer {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 14px 24px 20px;
  font-size: 11.5px;
  color: var(--faint);
}

.site-footer nav {
  display: flex;
  gap: 14px;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-tag {
  margin-left: auto;
}

/* ---------- Narrow ---------- */

@media (max-width: 980px) {
  .intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }
}

@media (max-width: 760px) {
  .shell {
    padding-inline: 16px;
  }

  .site-header,
  .site-footer {
    padding-inline: 16px;
  }

  .workbench {
    grid-template-columns: minmax(0, 1fr);
  }

  .rail {
    border-left: 0;
    border-top: 1px solid var(--border-light);
  }

  /* Two scrollers stacked inside one scroller is a trap on a phone, so the
     panes give up their own scrolling and the page scrolls instead. That means
     the workbench must size to its content rather than to what is left of the
     viewport: as a flex item it would keep the height the row gave it while the
     rows inside it overflowed, and the rail would be drawn over the document.
   */
  .workbench {
    flex: 0 0 auto;
    min-height: 0;
  }

  .pane,
  .rail-body {
    overflow: visible;
  }

  .rail-body {
    /* Without a floor the rail collapses to its cards and the border above it
       sits tight against the last note. */
    padding-bottom: 24px;
  }

  .pane {
    padding: 22px 20px 26px 46px;
  }

  #input {
    font-size: 18px;
  }

  .report {
    font-size: 18px;
  }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  /* The sweep is the one animation whose absence has to be visible: it is the
     only sign the engine is working. It stays as a static tint. */
  .is-analyzing .sweep {
    opacity: 1;
    background: rgba(95, 179, 179, 0.1);
  }
}