/* The PromptFixer site. Dark first, on the app's own palette from src/styles.css, so the page
   and the screenshot on it look like one product; the light theme keeps every text and
   background pairing at 4.5:1 or better, which is why its accent and status colours are darker
   than the app's. Everything is a token on :root so both themes share every rule below. */

:root {
  color-scheme: dark;
  --bg: #0b0e14;
  --bg-soft: #0f131b;
  --panel: #141a24;
  --panel-2: #1a212d;
  --border: #232c3a;
  --text: #e7ecf4;
  --text-dim: #9aa7b8;
  --text-faint: #7f8b9c;
  --accent: #6ea8fe;
  --good: #3ecf8e;
  --warn: #f0b429;
  --bad: #f2616b;
  /* Dark text on the accent reads at 8:1; white on it would not pass, so buttons and badges
     never use white here. */
  --button-bg: #6ea8fe;
  --button-text: #0b0e14;
  --button-hover: #8dbbff;
  /* The plain button's one visible edge, at 3:1 or better against the page and the card in
     each theme, so a button is a button before it is read. */
  --button-border: #5a697f;
  --code-bg: #0f131b;
  --header-bg: rgba(11, 14, 20, 0.86);
  --glow: rgba(110, 168, 254, 0.16);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  --radius: 10px;
  --radius-sm: 7px;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #f6f8fb;
    --bg-soft: #eef2f7;
    --panel: #ffffff;
    --panel-2: #f1f4f9;
    --border: #d3dae5;
    --text: #111827;
    --text-dim: #4b5567;
    --text-faint: #5f6b7c;
    --accent: #1d5fd1;
    --good: #147a4d;
    --warn: #8a5a00;
    --bad: #c0303a;
    --button-bg: #1d5fd1;
    --button-text: #ffffff;
    --button-hover: #1750b3;
    --button-border: #808a99;
    --code-bg: #eef2f7;
    --header-bg: rgba(246, 248, 251, 0.88);
    --glow: rgba(29, 95, 209, 0.12);
    --shadow: 0 24px 50px rgba(17, 24, 39, 0.16);
  }
}

/* --- base ---------------------------------------------------------------- */

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

html {
  /* The sticky header would otherwise cover the heading an anchor link jumps to; on a phone it
     is two rows tall, the brand above the links. */
  scroll-padding-top: 6.5rem;
}

@media (min-width: 720px) {
  html {
    scroll-padding-top: 5rem;
  }
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* A phone must never scroll sideways; anything wider than the viewport is a defect, not a feature. */
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  text-decoration-thickness: 2px;
}

code,
pre {
  font-family: var(--mono);
  font-size: 0.9em;
}

code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.35em;
  /* A token in a code span is broken only when it would not fit on a line of its own, so a
     phone never scrolls sideways; the hash and the code blocks, which are long by nature, are
     the only places that break anywhere. */
  overflow-wrap: break-word;
}

/* In running text a code span is borderless, as GitHub renders the same notes, so a sentence
   with three of them does not turn into a row of boxes. */
.notes code,
.aside p code,
.before p code {
  border: 0;
  padding: 0.05em 0.3em;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  margin: 0.75rem 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: 0.92em;
}

p,
li {
  overflow-wrap: break-word;
}

h1,
h2,
h3,
h4 {
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
}

h3 {
  font-size: 1.15rem;
}

h4 {
  font-size: 1rem;
  margin-top: 1.5rem;
}

button {
  font: inherit;
  color: inherit;
}

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

@media (min-width: 720px) {
  .container {
    padding: 0 32px;
  }
}

.muted {
  color: var(--text-dim);
}

/* --- skip link ----------------------------------------------------------- */

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  background: var(--button-bg);
  color: var(--button-text);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 16px;
}

/* --- header -------------------------------------------------------------- */

/* The header stays pinned at every width so the download is one click away after the hero has
   scrolled off; on a phone it is two rows, the brand above a single row of links. */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
}

.brand img {
  border-radius: 8px;
}

.brand-tagline {
  display: none;
  font-weight: 400;
  color: var(--text-dim);
  font-size: 0.9rem;
}

@media (min-width: 720px) {
  .brand-tagline {
    display: inline;
  }
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-header nav a {
  white-space: nowrap;
}

.site-header nav a:not(.button) {
  color: var(--text-dim);
  text-decoration: none;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.site-header nav a:not(.button):hover {
  color: var(--text);
  background: var(--panel-2);
}

.site-header nav .button {
  margin-left: 0.35rem;
}

/* On a phone the links keep to one row and scroll sideways inside the header if a very narrow
   screen leaves them no room, rather than wrapping to a third row or widening the page; the
   scrollbar is left visible so that a clipped link announces itself. The GitHub link stays
   off the phone header, where the hero and the footer both carry it, so that the row fits a
   320px screen and a reader's wider text spacing. The padding and the negative margin cancel
   out and leave the scroll box room for a focus ring. */
@media (max-width: 719px) {
  .site-header nav {
    flex-wrap: nowrap;
    gap: 0.125rem;
    overflow-x: auto;
    padding: 5px;
    margin: -5px;
  }

  .site-header nav a[href*="github.com"] {
    display: none;
  }

  /* Sized so that the three links fit a 320px screen with room to spare. */
  .site-header nav a:not(.button) {
    font-size: 0.85rem;
    padding: 0.35rem 0.45rem;
  }

  .site-header nav .button {
    margin-left: 0.125rem;
    padding: 0.25rem 0.5rem;
  }
}

/* --- hero ---------------------------------------------------------------- */

.hero {
  position: relative;
  padding: 4rem 0 2rem;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  /* A soft accent glow behind the headline is the one decoration the page allows itself. */
  content: "";
  position: absolute;
  inset: -20% 0 auto;
  height: 60%;
  background: radial-gradient(ellipse at 50% 0%, var(--glow), transparent 65%);
  pointer-events: none;
}

.hero .container {
  position: relative;
}

/* Small capitals rather than text-transform, here and on the badge: Chromium copies a
   transform into the accessible name, and a screen reader spells out an all-caps word. */
.eyebrow {
  margin: 0 0 1rem;
  color: var(--text-dim);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  font-variant-caps: all-small-caps;
}

@media (min-width: 480px) {
  .eyebrow {
    font-size: 1.05rem;
  }
}

/* Each half of the eyebrow is kept whole so that the only place it can break is at the dot, and
   a balanced lede is kept from breaking "prompt-engineering" at its hyphen. */
.nowrap {
  white-space: nowrap;
}

h1 {
  font-size: clamp(2rem, 5.5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin: 0 auto 1.25rem;
  max-width: 18ch;
}

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--text-dim);
  /* Measured: at 62ch the two sentences run to five lines on a desktop, at 64ch to four. */
  max-width: 64ch;
  margin: 0 auto 1.75rem;
}

.lede strong {
  color: var(--text);
}

/* Short centred or multi-line runs are balanced so a line does not end on a one-word orphan.
   The headline is left alone on purpose: balanced, it loses the "Offline." line it is built on. */
.lede,
.requirements,
.section-lede,
.screenshot figcaption,
.features h3 {
  text-wrap: balance;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.requirements {
  color: var(--text-faint);
  font-size: 0.92rem;
  margin: 0 auto 2.5rem;
  max-width: 60ch;
}

/* The macOS line sits right under the Windows requirements, not a paragraph away. */
.requirements.mac-line {
  margin-top: -1.9rem;
}

.screenshot {
  margin: 0 auto;
  max-width: 1000px;
}

.screenshot img {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: var(--panel);
}

.screenshot figcaption {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin-top: 1rem;
}

/* --- buttons ------------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--button-border);
  background: var(--panel-2);
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
  max-width: 100%;
  text-align: center;
}

.button:hover {
  background: var(--panel);
  text-decoration: none;
}

.button.primary {
  background: var(--button-bg);
  border-color: transparent;
  color: var(--button-text);
}

.button.primary:hover {
  background: var(--button-hover);
}

/* An accent ring around an accent button would vanish into it; the text colour stands out
   against both the button and the page in either theme. */
.button.primary:focus-visible {
  outline-color: var(--text);
}

.button.small {
  padding: 0.25rem 0.6rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

/* --- sections ------------------------------------------------------------ */

.section {
  padding: 3.5rem 0;
}

.section-soft {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-lede {
  color: var(--text-dim);
  margin: 0 0 1.75rem;
  max-width: 70ch;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  min-width: 0;
}

.card p:last-child {
  margin-bottom: 0;
}

/* --- how it works -------------------------------------------------------- */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

@media (min-width: 900px) {
  .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.steps li {
  position: relative;
  padding-top: 1.35rem;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--button-bg);
  color: var(--button-text);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.steps p {
  color: var(--text-dim);
  margin: 0;
}

.steps strong {
  color: var(--text);
}

/* --- features ------------------------------------------------------------ */

.features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.features h3 {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 1.05rem;
}

.features p {
  color: var(--text-dim);
  margin: 0;
  font-size: 0.95rem;
}

/* One colour for every dot: a mix of colours would read as a status legend the page does not
   have. The top margin centres it on the first line of a title that wraps. */
.dot {
  flex: 0 0 auto;
  width: 0.65rem;
  height: 0.65rem;
  margin-top: 0.3em;
  border-radius: 50%;
  background: var(--accent);
}

/* --- download ------------------------------------------------------------ */

.download-grid {
  display: grid;
  gap: 1rem;
  align-items: start;
}

/* The card and "Run from source" share the first row and come out about the same height; the
   checks a user makes before running the installer take a full-width row under them, three
   abreast, so neither column is left with a tall empty stretch under it. */
@media (min-width: 900px) {
  .download-grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  }

  .before {
    grid-column: 1 / -1;
  }

  .before-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.before-grid {
  display: grid;
  gap: 1rem 1.5rem;
}

.before p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
}

.before pre {
  margin-bottom: 0;
}

.download-card h3 {
  font-size: 1.4rem;
}

/* The numbers are filled in by site.js; until it has data, the card shows only the generic
   link to GitHub and no sentence on the page refers to a field that is empty, so a missing
   releases.json never shows a blank or points at one. */
.download-card[data-state="fallback"] .needs-data,
html:not([data-releases="ready"]) .needs-data {
  display: none;
}

.notice {
  border-left: 3px solid var(--warn);
  background: var(--panel-2);
  padding: 0.6rem 0.9rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 0 0 1rem;
  font-size: 0.95rem;
}

.facts {
  margin: 1rem 0;
  display: grid;
  gap: 0.6rem;
}

.fact {
  display: grid;
  gap: 0.15rem 1rem;
  grid-template-columns: 5rem minmax(0, 1fr);
  align-items: baseline;
}

.fact dt {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.fact dd {
  margin: 0;
  min-width: 0;
}

@media (max-width: 479px) {
  .fact {
    grid-template-columns: 1fr;
  }
}

/* Sized so that the 64 characters fit on one line in the card at the site's full width; on a
   narrower screen the hash breaks wherever the line ends, which is the one place that is right
   for a string with no words in it. */
.hash {
  display: block;
  overflow-wrap: anywhere;
  font-size: 0.8em;
  line-height: 1.5;
  padding: 0.35rem 0.5rem;
}

.hash-tools {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-top: 0.4rem;
  font-size: 0.9rem;
}

.status {
  color: var(--good);
  font-weight: 600;
}

.status.is-error {
  color: var(--warn);
}

.cta-row {
  margin: 0.25rem 0 1.5rem;
}

/* The macOS images on the download card, under the Windows facts. */
.mac-images {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.mac-images h4 {
  font-size: 1.05rem;
  margin: 0 0 0.25rem;
}

.mac-images > .muted {
  font-size: 0.95rem;
  margin: 0 0 0.5rem;
}

.mac-image .cta-row {
  margin: 0.5rem 0 0.25rem;
}

.mac-image .facts {
  margin: 0.25rem 0 0.75rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 1.25rem 0 0;
}

.aside h3 {
  font-size: 1.15rem;
}

.aside p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* --- what's new ---------------------------------------------------------- */

.fallback {
  color: var(--text-dim);
}

.releases {
  display: grid;
  gap: 0.75rem;
}

.release {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 0;
}

.release summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
}

.release summary::-webkit-details-marker {
  display: none;
}

.release summary::before {
  content: "";
  flex: 0 0 auto;
  align-self: center;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--text-dim);
  border-bottom: 2px solid var(--text-dim);
  transform: rotate(-45deg);
  transition: transform 0.15s ease;
}

.release details[open] > summary::before {
  transform: rotate(45deg);
}

.release summary h3 {
  display: inline;
  margin: 0;
  font-size: 1.15rem;
}

.badge {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  font-variant-caps: all-small-caps;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: var(--button-bg);
  color: var(--button-text);
  vertical-align: middle;
  margin-left: 0.5rem;
}

.badge.prerelease {
  background: transparent;
  border: 1px solid var(--warn);
  color: var(--warn);
}

.release-date {
  color: var(--text-dim);
  font-size: 0.95rem;
}

.release-body {
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid var(--border);
}

.release-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 1rem 0 0.5rem;
  font-size: 0.95rem;
}

/* The page's one sub-heading style, shared by the release notes and the checks under the
   download card. */
.notes h4,
.notes h5,
.before h4 {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text-dim);
  margin: 1.25rem 0 0.5rem;
}

.before h4 {
  margin-top: 0.5rem;
}

.notes p {
  margin: 0.6rem 0;
}

.notes ul {
  margin: 0.4rem 0;
  padding-left: 1.25rem;
}

.notes li {
  margin: 0.45rem 0;
}

.notes li::marker {
  color: var(--text-faint);
}

.notes hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 1.25rem 0;
}

/* --- footer -------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 3rem;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.byline {
  margin: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}