/* Easydict for Linux — landing page
   Palette and corner language are taken from the app's own tokens
   (frontend/src/index.css) so the page and the product read as one thing. */

@font-face {
  font-family: "Inter";
  src: url("assets/fonts/inter-latin.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
  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+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Source Serif 4";
  src: url("assets/fonts/source-serif-roman.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("assets/fonts/jetbrains-mono-latin.woff2") format("woff2");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Surfaces — the app's --background / --card / --border, one step apart. */
  --paper: #f4f7fb;
  --paper-deep: #eaeff7;
  --card: #ffffff;
  --line: #dde5ef;
  --line-strong: #c9d5e4;

  /* Ink */
  --ink: #0f172a;
  --ink-soft: #46566e;
  --ink-faint: #5b6b81;

  /* Brand — the app's primary blue. */
  --blue: #2563eb;
  --blue-deep: #1d4ed8;
  --blue-ink: #1e3a8a;
  --blue-wash: #eef4ff;
  --blue-line: #c7dafb;

  /* Youdao red: the one warm accent, used where the app uses it. */
  --red: #e11d48;
  --red-wash: #fff1f4;
  --red-line: #fbd0da;

  --radius: 10px;
  --radius-lg: 14px;

  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Source Serif 4", "Songti SC", "Noto Serif CJK SC", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas,
    "Noto Sans Mono CJK SC", monospace;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05), 0 1px 1px rgba(15, 23, 42, 0.03);
  --shadow-md: 0 8px 24px -8px rgba(15, 23, 42, 0.16), 0 2px 6px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 32px 64px -24px rgba(15, 23, 42, 0.28), 0 8px 20px -8px rgba(15, 23, 42, 0.1);
  --shadow-pop: 0 20px 40px -16px rgba(15, 23, 42, 0.25), 0 2px 8px rgba(15, 23, 42, 0.06);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --wrap: 1160px;
}

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

html {
  scrollbar-color: var(--line-strong) transparent;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

::selection { background: #bfd4fb; color: var(--ink); }

/* The page's own scrollbar, not the OS default. */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border: 3px solid var(--paper);
  border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover { background: #a9b8cb; }
::-webkit-scrollbar-corner { background: transparent; }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--card); color: var(--ink); padding: 10px 16px;
  border-radius: var(--radius); box-shadow: var(--shadow-md);
  font-weight: 500; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}

.icon {
  width: 1.15em; height: 1.15em;
  fill: none; stroke: currentColor; stroke-width: 1.8;
  stroke-linecap: round; stroke-linejoin: round;
  flex: none;
}

/* ---------- Type ---------- */

h1, h2, h3 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.021em;
  line-height: 1.18;
  text-wrap: balance;
}

html[lang="en"] h1 {
  font-size: clamp(2.5rem, 3.9vw, 3.15rem);
}

h1 {
  font-family: var(--serif);
  font-weight: 600;
  /* Sized so the second line ("答案就在光标旁边") holds on one line
     in the hero column at every desktop width. */
  font-size: clamp(2.5rem, 4.2vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.026em;
}

h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.85rem, 2.9vw, 2.6rem);
  line-height: 1.16;
  letter-spacing: -0.024em;
}

h3 { font-size: 1.0625rem; letter-spacing: -0.012em; }

.lede {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.0625rem;
  line-height: 1.72;
  max-width: 60ch;
}

.small { font-size: 0.9375rem; color: var(--ink-soft); line-height: 1.65; }
.small code, .lede code, .fact-list code, .detail code, .dep-list code, footer code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 0.08em 0.34em;
  color: var(--blue-ink);
  white-space: nowrap;
}

a { color: var(--blue-deep); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: currentColor; }

kbd {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.78em;
  font-weight: 600;
  line-height: 1;
  padding: 0.34em 0.46em 0.3em;
  margin: 0 0.06em;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  vertical-align: 0.08em;
  white-space: nowrap;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(244, 247, 251, 0.86);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease, background-color 200ms ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(244, 247, 251, 0.94);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.015em;
  font-size: 1rem;
}
.brand img { border-radius: 7px; box-shadow: 0 1px 2px rgba(15, 23, 42, 0.18); }
.brand-suffix {
  margin-left: 0.4em;
  color: var(--ink-faint);
  font-weight: 450;
  font-size: 0.875rem;
}

.site-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.90625rem;
  font-weight: 500;
  padding: 7px 11px;
  border-radius: 7px;
  transition: background-color 150ms ease, color 150ms ease;
}
.site-nav a:hover { background: var(--paper-deep); color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: 8px; }

.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 32px;
  padding: 0 9px;
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  cursor: pointer;
  transition: color 150ms ease, border-color 150ms ease, background-color 150ms ease;
}
.lang-toggle:hover { color: var(--ink); border-color: var(--ink-faint); background: #fbfcfe; }

.gh-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 32px;
  padding: 0 11px;
  font-size: 0.84375rem;
  font-weight: 500;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  text-decoration: none;
  transition: border-color 150ms ease, background-color 150ms ease;
}
.gh-link:hover { border-color: var(--ink-faint); background: #fbfcfe; }
.gh-link .icon { width: 15px; height: 15px; stroke: none; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 46px;
  padding: 0 20px;
  border-radius: 9px;
  font-size: 0.96875rem;
  font-weight: 550;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 150ms var(--ease), background-color 150ms ease,
    border-color 150ms ease, box-shadow 150ms ease;
}
.btn:active { transform: translateY(1px); }
.btn .icon { width: 17px; height: 17px; transition: transform 200ms var(--ease); }

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.16);
}
.btn-primary:hover { background: var(--blue-deep); }
.btn-primary:hover .icon { transform: translateX(2px); }

.btn-quiet {
  background: var(--card);
  color: var(--ink);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}
.btn-quiet:hover { border-color: var(--ink-faint); }
.btn-quiet:hover .icon { transform: translate(1px, -1px); }

/* ---------- Hero ---------- */

.hero { padding: 72px 0 56px; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
  gap: 52px;
  align-items: center;
}

.hero-copy { max-width: 34rem; }

.hero-copy h1 { margin-bottom: 22px; }

.hero-copy .lede { font-size: 1.09375rem; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  font-size: 0.8125rem;
  color: var(--ink-faint);
}
.hero-meta li { white-space: nowrap; }
.hero-meta li + li::before {
  content: "";
  display: inline-block;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--line-strong);
  vertical-align: middle;
  margin: 0 10px 2px;
}

.hero-visual { position: relative; }

/* A soft daylight wash behind the window, the same blue the app's own
   background is tinted with. Light, not glass. */
.hero-visual::before {
  content: "";
  position: absolute;
  inset: -8% -12% -14% -10%;
  background: radial-gradient(60% 60% at 55% 42%, rgba(37, 99, 235, 0.10), rgba(37, 99, 235, 0) 70%);
  pointer-events: none;
  z-index: -1;
}

.app-window {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 12px;
  background: linear-gradient(#fbfcfe, #f4f7fb);
  border-bottom: 1px solid var(--line);
}
.window-icon { border-radius: 4px; }
.window-title {
  font-size: 0.75rem;
  font-weight: 550;
  color: var(--ink-soft);
  letter-spacing: 0.01em;
}
.window-controls { display: flex; gap: 4px; margin-left: auto; }
.window-controls svg {
  width: 22px; height: 22px;
  fill: none; stroke: #94a3b8; stroke-width: 1.3; stroke-linecap: round;
}

.window-shot { width: 100%; height: auto; background: #fff; }

.keycap-chip {
  position: absolute;
  left: -22px;
  bottom: -20px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 9px 14px 9px 11px;
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  box-shadow: var(--shadow-pop);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink-soft);
  white-space: nowrap;
}
.keycap-chip kbd { font-size: 0.75rem; }
.keycap-chip .plus { color: var(--ink-faint); font-size: 0.7rem; margin: 0 1px; }
.chip-label { margin-left: 6px; padding-left: 10px; border-left: 1px solid var(--line); }

/* ---------- Sections ---------- */

.section { padding: 88px 0; }

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 72px;
  align-items: center;
}
.split-reverse { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); }
.split-reverse .split-visual { order: -1; }

.split-copy h2 { margin-bottom: 20px; }

.fact-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}
.fact-list h3 { font-size: 0.96875rem; margin-bottom: 5px; }
.fact-list p { margin: 0; color: var(--ink-soft); font-size: 0.9375rem; line-height: 1.62; max-width: 46ch; }

/* ---------- Selection demo ---------- */

.selection-demo,
.ocr-demo {
  position: relative;
  padding: 0 0 0 26px;
  user-select: none;
  -webkit-user-select: none;
}

.paper {
  position: relative;
  user-select: none;
  -webkit-user-select: none;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 32px;
  box-shadow: var(--shadow-sm);
}
.paper-text {
  margin: 0;
  font-family: var(--serif);
  font-style: normal;
  font-size: 1.0625rem;
  line-height: 1.78;
  color: #33415a;
  max-width: 42ch;
}
.sel {
  background: #cfe0fb;
  color: var(--ink);
  border-radius: 2px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  padding: 0.1em 0;
}

.cursor-arrow {
  position: absolute;
  left: 47%;
  top: 46%;
  color: var(--ink);
  filter: drop-shadow(0 1px 1px rgba(255, 255, 255, 0.9));
}
.cursor-arrow svg { width: 19px; height: 19px; }

.bubble {
  position: absolute;
  left: calc(47% + 16px);
  top: calc(46% + 12px);
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  box-shadow: 0 4px 10px -4px rgba(15, 23, 42, 0.35), 0 1px 2px rgba(15, 23, 42, 0.2);
}
.bubble .icon { width: 17px; height: 17px; }

.popup {
  position: relative;
  margin: 14px 0 0 52px;
  background: var(--card);
  border: 1px solid var(--red-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-pop);
  overflow: hidden;
}

.popup-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid #f1f5f9;
}
.popup-head .youdao { color: var(--red); width: 16px; height: 16px; }
.popup-title { font-size: 0.875rem; font-weight: 600; }
.badge {
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 1px 7px;
  border-radius: 5px;
  line-height: 1.5;
}
.badge-dict { background: var(--red-wash); color: #be123c; }
.popup-ms { font-size: 0.6875rem; color: var(--ink-faint); white-space: nowrap; }
.popup-tools { display: flex; gap: 10px; margin-left: auto; color: #94a3b8; }
.popup-tools .icon { width: 15px; height: 15px; }
.popup-expand {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--blue-deep);
  padding-left: 10px;
  margin-left: 2px;
  border-left: 1px solid var(--line);
}

.popup-body { padding: 16px 16px 18px; }

.phonetics { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.phonetic {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: #33415a;
  background: #f1f5f9;
  border-radius: 5px;
  padding: 3px 8px;
}
.phonetic em {
  font-style: normal;
  font-family: var(--sans);
  font-size: 0.6875rem;
  color: var(--ink-faint);
  margin-right: 5px;
}

.definition {
  margin: 0 0 16px;
  font-size: 0.90625rem;
  line-height: 1.6;
}
.pos {
  display: inline-block;
  font-family: var(--serif);
  font-style: normal;
  font-size: 0.8125rem;
  color: var(--blue-deep);
  background: var(--blue-wash);
  border-radius: 4px;
  padding: 0 6px;
  margin-right: 6px;
  vertical-align: 0.06em;
}

.examples-label {
  margin: 0 0 10px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 0.75rem;
  font-weight: 550;
  color: var(--ink-faint);
}

.example { position: relative; padding-right: 96px; }
.example + .example { margin-top: 10px; }
.ex-src { margin: 0; font-size: 0.84375rem; color: var(--ink); line-height: 1.55; }
.ex-dst { margin: 1px 0 0; font-size: 0.8125rem; color: var(--ink-soft); line-height: 1.55; }
.ex-from {
  position: absolute;
  right: 0;
  bottom: 2px;
  font-size: 0.6875rem;
  color: var(--ink-faint);
  white-space: nowrap;
}

/* ---------- Sources ---------- */

.sources { border-top: 1px solid var(--line); }

.sources-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 72px;
  align-items: start;
}
.sources-copy { position: sticky; top: 104px; }
.sources-copy h2 { margin-bottom: 20px; }
.sources-copy .small { margin-top: 22px; max-width: 38ch; padding-top: 20px; border-top: 1px solid var(--line); }

.source-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }

.source-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 8px 20px 2px;
  border-bottom: 1px solid var(--line);
  transition: background-color 150ms ease;
}
.source-row:hover { background: rgba(255, 255, 255, 0.7); }

.source-icon {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  border-radius: 9px;
  flex: none;
}
.source-icon .icon { width: 18px; height: 18px; }
.is-youdao { background: var(--red-wash); color: var(--red); }
.is-bing { background: #e0f2fe; color: #0284c7; }
.is-google { background: #e7f8ef; color: #059669; }
.is-ai { background: #fef4e2; color: #b45309; }
.is-deepl { background: #eef0fe; color: #4f46e5; }

.source-body { flex: 1; min-width: 0; }
.source-body h3 { font-size: 0.96875rem; font-weight: 600; margin-bottom: 2px; }
.source-body p { margin: 0; font-size: 0.875rem; color: var(--ink-soft); }

.tag {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--ink-soft);
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 2px 7px;
  white-space: nowrap;
}

/* ---------- OCR band ---------- */

.band {
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 88px 0;
}

.ocr-frame {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.ocr-frame img { width: 100%; opacity: 0.72; filter: saturate(0.9); }

.marquee {
  position: absolute;
  left: 4.5%;
  top: 7%;
  width: 90%;
  height: 17%;
  border: 1.5px solid var(--blue);
  background: rgba(37, 99, 235, 0.08);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.65);
}
.handle {
  position: absolute;
  width: 8px; height: 8px;
  background: #fff;
  border: 1.5px solid var(--blue);
  border-radius: 2px;
}
.handle.tl { left: -5px; top: -5px; }
.handle.tr { right: -5px; top: -5px; }
.handle.bl { left: -5px; bottom: -5px; }
.handle.br { right: -5px; bottom: -5px; }

.ocr-toolbar {
  position: absolute;
  left: 50%;
  top: calc(7% + 17% + 14px);
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  background: #111827;
  color: #f8fafc;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  box-shadow: var(--shadow-pop);
}
.ocr-toolbar .icon { width: 14px; height: 14px; }
.ocr-toolbar kbd {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.22);
  color: #f8fafc;
  font-size: 0.6875rem;
}

.ocr-result {
  position: absolute;
  right: -14px;
  bottom: -16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 15px;
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  box-shadow: var(--shadow-pop);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}
.ocr-result .icon { width: 15px; height: 15px; color: #059669; stroke-width: 2.4; }

/* ---------- Details ---------- */

.details h2 { max-width: 18ch; margin-bottom: 48px; }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.detail {
  background: var(--card);
  padding: 26px 26px 28px;
}
.detail > .icon {
  width: 19px; height: 19px;
  color: var(--blue);
  margin-bottom: 14px;
  stroke-width: 1.7;
}
.detail h3 { font-size: 0.96875rem; margin-bottom: 6px; }
.detail p { margin: 0; font-size: 0.90625rem; color: var(--ink-soft); line-height: 1.62; }

.shortcut-block {
  margin-top: 56px;
  display: grid;
  grid-template-columns: minmax(0, 0.55fr) minmax(0, 1.45fr);
  gap: 48px;
  align-items: start;
}
.shortcut-intro h3 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 12px;
}
.shortcut-intro .small { font-size: 0.875rem; max-width: 30ch; }

.shortcut-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.90625rem;
  table-layout: fixed;
}
.shortcut-table th:nth-child(1) { width: 38%; }
.shortcut-table th:nth-child(2) { width: 22%; }
.shortcut-table th:nth-child(3) { width: 40%; }
.shortcut-table th {
  text-align: left;
  font-size: 0.75rem;
  font-weight: 550;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
  padding: 0 12px 10px 0;
  border-bottom: 1px solid var(--line);
}
.shortcut-table td {
  padding: 13px 12px 13px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.shortcut-table td:first-child { color: var(--ink); }
.shortcut-table td:nth-child(2) { white-space: nowrap; }
.shortcut-table td:nth-child(3) code {
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--blue-ink);
}
.shortcut-table kbd { margin-right: 3px; }

/* ---------- Install ---------- */

.install { border-top: 1px solid var(--line); }

.install-head { max-width: 46rem; margin-bottom: 40px; }
.install-head h2 { margin-bottom: 18px; }

.install-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  align-items: start;
}

.code-block {
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px 8px 16px;
  background: #f8fafd;
  border-bottom: 1px solid var(--line);
}
.code-lang {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
}
.copy-btn:hover { background: var(--paper-deep); color: var(--ink); }
.copy-btn .icon { width: 13px; height: 13px; }
.copy-btn.is-copied { color: #047857; border-color: #a7e3c6; background: #ecfdf5; }

.code-block pre, .wm-code, .deps-code { margin: 0; overflow-x: auto; scrollbar-width: thin; }
.code-block pre { padding: 18px 20px 20px; overflow-x: auto; scrollbar-width: thin; }
.code-block pre code { white-space: pre; }
.code-block code, .wm-code code, .deps-code code {
  font-family: var(--mono);
  font-size: 0.8125rem;
  line-height: 1.85;
  color: var(--blue-ink);
  tab-size: 2;
}

.install-main .small { margin: 16px 0 0; }

.wm {
  margin-top: 32px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px 20px 16px;
  box-shadow: var(--shadow-sm);
}
.wm-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.wm-head h3 { font-size: 0.9375rem; }

.tabs {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  background: var(--paper-deep);
  border-radius: 7px;
}
.tab {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 550;
  color: var(--ink-soft);
  background: transparent;
  border: 0;
  border-radius: 5px;
  padding: 4px 10px;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease, box-shadow 150ms ease;
}
.tab:hover { color: var(--ink); }
.tab.is-active {
  background: var(--card);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}

.wm-code, .deps-code {
  background: #f6f9fd;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
}
.wm-code code { font-size: 0.8125rem; line-height: 1.8; }

.warn {
  display: flex;
  gap: 9px;
  margin: 14px 0 0;
  font-size: 0.84375rem;
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 8px;
  padding: 10px 12px;
  line-height: 1.55;
}

.deps {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.deps h3 { font-size: 0.9375rem; margin-bottom: 4px; }
.deps > .small:first-of-type { margin: 0 0 12px; }
.deps-code code { font-size: 0.75rem; line-height: 1.75; }

.dep-list {
  margin: 18px 0 0;
  display: grid;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.dep-list div { display: grid; gap: 1px; }
.dep-list dt {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.dep-list dd { margin: 0; font-size: 0.84375rem; color: var(--ink-soft); line-height: 1.6; }
.dep-list code { font-size: 0.78rem; }

.deps > .small:last-child {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.8125rem;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--paper-deep);
  padding: 56px 0 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 64px;
}
.footer-limits h2 {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 14px;
}
.footer-limits ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.footer-limits li {
  position: relative;
  padding-left: 18px;
  font-size: 0.875rem;
  color: var(--ink-soft);
  line-height: 1.62;
  max-width: 52ch;
}
.footer-limits li::before {
  content: "";
  position: absolute;
  left: 3px; top: 0.68em;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--line-strong);
}

.footer-meta p { margin: 0; font-size: 0.875rem; color: var(--ink-soft); line-height: 1.65; max-width: 46ch; }
.footer-meta code { font-size: 0.78rem; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 20px 0;
  padding: 16px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  font-size: 0.875rem;
  font-weight: 500;
}
.footer-links a { text-decoration: none; color: var(--ink); }
.footer-links a:hover { color: var(--blue-deep); text-decoration: underline; }
.footer-meta .small { font-size: 0.8125rem; color: var(--ink-faint); }

/* ---------- Motion ---------- */

.reveal,
.reveal-hero {
  opacity: 1;
}

html.has-js .reveal,
html.has-js .reveal-hero {
  opacity: 0;
  transform: translateY(14px);
}

html.has-js .reveal.is-in,
html.has-js .reveal-hero.is-in {
  opacity: 1;
  transform: none;
  transition: opacity 640ms var(--ease), transform 640ms var(--ease);
}

html.has-js .reveal-hero { transition-delay: 60ms; }
html.has-js .reveal-hero.is-in { transition-delay: 60ms; }

/* The hero visual's own arrival: it rises and settles once, on load. */
html.has-js .app-window.reveal-hero.is-in {
  animation: window-in 900ms var(--ease) both;
  transition: none;
}
html.has-js .keycap-chip.reveal-hero.is-in {
  animation: chip-in 700ms var(--ease) 520ms both;
  transition: none;
}

@keyframes window-in {
  from { opacity: 0; transform: translateY(18px) scale(0.985); }
  to { opacity: 1; transform: none; }
}
@keyframes chip-in {
  from { opacity: 0; transform: translateY(10px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

/* The selection popup steps in after the paper, the way it does in use. */
html.has-js .selection-demo.is-in .popup {
  animation: popup-in 560ms var(--ease) 240ms both;
}
@keyframes popup-in {
  from { opacity: 0; transform: translateY(8px) scale(0.99); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.has-js .reveal,
  html.has-js .reveal-hero,
  html.has-js .app-window.reveal-hero.is-in,
  html.has-js .keycap-chip.reveal-hero.is-in,
  html.has-js .selection-demo.is-in .popup {
    opacity: 1;
    transform: none;
    animation: none;
    transition: none;
  }
}

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .hero-grid { gap: 36px; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); }
  .split, .split-reverse { gap: 48px; }
  .sources-grid { gap: 48px; }
  .detail-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .wrap { padding: 0 24px; }
  .site-nav { display: none; }

  .hero { padding: 48px 0 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-copy { max-width: none; }
  .hero-visual { max-width: 620px; }
  .keycap-chip { left: 12px; bottom: -18px; }

  .section, .band { padding: 64px 0; }
  .split, .split-reverse { grid-template-columns: 1fr; gap: 40px; }
  .split-reverse .split-visual { order: 0; }

  .sources-grid { grid-template-columns: 1fr; gap: 36px; }
  .sources-copy { position: static; }
  .sources-copy .small { max-width: none; }

  .shortcut-block { grid-template-columns: 1fr; gap: 20px; }
  .install-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }

  .details h2 { margin-bottom: 36px; }
}

@media (max-width: 620px) {
  body { font-size: 15px; }
  .install-main, .wm, .code-block { min-width: 0; max-width: 100%; }
  .wrap { padding: 0 18px; }
  .header-inner { height: 58px; gap: 12px; }
  .brand-suffix { display: none; }
  .gh-link span { display: none; }
  .gh-link { padding: 0 9px; }

  h1 { font-size: clamp(2.05rem, 9vw, 2.7rem); }
  .hero-copy .lede { font-size: 1rem; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
  .keycap-chip { position: static; margin-top: 14px; }
  .hero-visual { display: flex; flex-direction: column; align-items: flex-start; }
  .app-window { width: 100%; }

  .detail-grid { grid-template-columns: 1fr; }
  .detail { padding: 22px; }

  .selection-demo { padding: 0; }
  .popup { margin: -18px 0 0 20px; }
  .paper { padding: 22px; }
  .paper-text { font-size: 1rem; }
  .example { padding-right: 0; }
  .ex-from { position: static; display: block; margin-top: 2px; }

  .ocr-result { right: 4px; bottom: -14px; font-size: 0.75rem; }
  .ocr-toolbar { font-size: 0.6875rem; top: calc(7% + 17% + 10px); }
  .marquee { height: 14%; }

  .shortcut-table th:nth-child(3),
  .shortcut-table td:nth-child(3) { display: none; }
  .shortcut-table th:nth-child(1) { width: 62%; }
  .shortcut-table th:nth-child(2) { width: 38%; }
  .shortcut-table td:first-child { padding-right: 16px; }

  .wm-head { flex-direction: column; align-items: flex-start; gap: 10px; }
  .code-block code { font-size: 0.78125rem; }
  .code-block pre { padding: 14px 14px 16px; }

  .footer-links { gap: 14px; }
}