/* WhisperWoof site theme: Mando glass (see DESIGN.md), shared by every page.

   Glassfolio's roles in Mando's coat:
   - .lg        glass, only for things that float over the page (the nav, and
                the app's lock card shown as the app draws it):
                tint + blur, a specular rim, a top sheen, a float shadow.
   - .sheet     a solid surface for anything people read. Radius 22, no border.
   - .well      a nested panel inside a sheet (sheet 2, radius 14).
   - .inverse   the smoky-saddle panel, dark in both themes.
   - .live      the signature: words still being heard, in frosted caramel glass.
   One caramel accent (.btn-primary); every control is a capsule.
   The backdrop is still. Motion only answers the user. Nunito is bundled in
   ./fonts (SIL OFL); the site makes no third-party requests. */

@font-face {
  font-family: "Nunito"; font-style: normal; font-weight: 200 1000; font-display: swap;
  src: url("./fonts/Nunito-normal-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: "Nunito"; font-style: normal; font-weight: 200 1000; font-display: swap;
  src: url("./fonts/Nunito-normal-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: "Nunito"; font-style: italic; font-weight: 200 1000; font-display: swap;
  src: url("./fonts/Nunito-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: "Nunito"; font-style: italic; font-weight: 200 1000; font-display: swap;
  src: url("./fonts/Nunito-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;
}

/* ── Tokens ────────────────────────────────────────────────────────────── */
:root {
  --ink: #2a211b; --ink-2: #64564b; --ink-3: #8e8074;
  --accent: #8f5a2a; --on-accent: #fff; --accent-rim: rgba(255, 255, 255, 0.3);
  --select: color-mix(in srgb, var(--accent) 14%, transparent);
  --live: #b87a3c; --live-glass: rgba(196, 138, 76, 0.22);
  --live-sheen: rgba(255, 255, 255, 0.35); --live-rim-mix: 70%; --live-top: rgba(255, 255, 255, 0.55);
  --sheet: #fdfbf8; --sheet-2: #f5f0ea; --sheet-line: #e8e0d6; --sheet-hover: #f3ede6;
  --knob: #fdfbf8; --knob-shadow: 0 1px 3px rgba(58, 36, 20, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  --pass: #3b7a4c; --warn: #80660f; --fail: #b0382c;
  --mauve: #7e4a63;   /* Mando's nose: a category colour (Dictionary), never a status */
  --backdrop-line: color-mix(in srgb, var(--ink) 18%, transparent);   /* lines drawn straight on the backdrop */
  --glass-tint: rgba(255, 251, 246, 0.36); --glass-tint-strong: rgba(255, 251, 246, 0.6); --glass-hover: rgba(255, 251, 246, 0.86);
  --glass-rim-hi: rgba(255, 255, 255, 0.95); --glass-rim-lo: rgba(255, 255, 255, 0.18);
  --glass-inner: rgba(255, 255, 255, 0.3); --glass-shade: rgba(58, 36, 20, 0.16);
  --glass-blur: blur(22px) saturate(1.7) brightness(1.05);
  --bg: #ebe4dc;
  --backdrop:
    radial-gradient(900px 620px at 6% -4%, #f0c996 0%, transparent 62%),
    radial-gradient(760px 560px at 102% 104%, #e3c1bc 0%, transparent 58%),
    radial-gradient(620px 420px at 70% 10%, #f4e7d3 0%, transparent 60%),
    var(--bg);
  --sheet-shadow: 0 1px 2px rgba(58, 36, 20, 0.06), 0 8px 24px -16px rgba(58, 36, 20, 0.2);
  --sheet-shadow-hover: 0 1px 2px rgba(58, 36, 20, 0.08), 0 12px 28px -16px rgba(58, 36, 20, 0.26);
  /* The "on your Mac" panel stays smoky saddle in both themes. */
  --panel: #2a211b; --panel-ink: #fdfbf8; --panel-ink-2: #bfb2a6; --panel-rule: #3d332b;
  --panel-wash: #f3e2cc; --panel-rim: transparent;
  --r-sheet: 22px; --r-nested: 14px;
  --press: cubic-bezier(0.3, 0.7, 0.4, 1.4);   /* button press spring */
  --slide: cubic-bezier(0.3, 0.7, 0.3, 1.15);  /* segmented knob */
  --sans: "Nunito", "PingFang SC", -apple-system, BlinkMacSystemFont, sans-serif;
  --han: "PingFang SC", -apple-system, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f3ede6; --ink-2: #bfb2a6; --ink-3: #8f8276;
    --accent: #e2a867; --on-accent: #1d130b;
    --select: color-mix(in srgb, var(--accent) 22%, transparent);
    --live: #e2a867; --live-glass: rgba(226, 168, 103, 0.22);
    --live-sheen: rgba(255, 255, 255, 0.08); --live-rim-mix: 60%; --live-top: rgba(255, 255, 255, 0.12);
    --sheet: #1a1512; --sheet-2: #221c18; --sheet-line: #312822; --sheet-hover: #261f1a;
    --knob: #2c241e; --knob-shadow: 0 1px 3px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 236, 214, 0.06);
    --pass: #72c291; --warn: #dcc15a; --fail: #ef7d72;
    --mauve: #dcb1c4;
    --glass-tint: rgba(44, 34, 27, 0.44); --glass-tint-strong: rgba(58, 46, 37, 0.68); --glass-hover: rgba(78, 62, 50, 0.8);
    --glass-rim-hi: rgba(255, 236, 214, 0.32); --glass-rim-lo: rgba(255, 236, 214, 0.05);
    --glass-inner: rgba(255, 240, 224, 0.07); --glass-shade: rgba(0, 0, 0, 0.45);
    --glass-blur: blur(22px) saturate(1.5) brightness(0.96);
    --bg: #120e0b;
    --backdrop:
      radial-gradient(900px 620px at 6% -4%, #6e4521 0%, transparent 62%),
      radial-gradient(760px 560px at 102% 104%, #57312f 0%, transparent 58%),
      radial-gradient(620px 420px at 70% 10%, #45372a 0%, transparent 60%),
      var(--bg);
    --sheet-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 10px 28px -14px rgba(0, 0, 0, 0.6);
    --sheet-shadow-hover: 0 1px 2px rgba(0, 0, 0, 0.34), 0 14px 32px -14px rgba(0, 0, 0, 0.7);
    --panel: #221b16; --panel-rim: rgba(255, 236, 214, 0.08);
    color-scheme: dark;
  }
}
@media (prefers-contrast: more) {
  :root {
    --sheet-line: #b5a595; --backdrop-line: color-mix(in srgb, var(--ink) 45%, transparent);
    --glass-tint: rgba(255, 251, 246, 0.84); --glass-tint-strong: rgba(255, 251, 246, 0.94);
  }
}
@media (prefers-contrast: more) and (prefers-color-scheme: dark) {
  :root { --sheet-line: #6b5a4c; --glass-tint: rgba(44, 34, 27, 0.88); --glass-tint-strong: rgba(58, 46, 37, 0.95); }
}

/* ── Base ──────────────────────────────────────────────────────────────── */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--sans); font-size: 18px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
:lang(zh), .han { font-family: var(--han); }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
code { font-family: var(--mono); font-size: 0.86em; color: var(--ink); background: var(--sheet-2); padding: 2px 6px; border-radius: 6px; }

/* The Mando backdrop: three still glows over the base. Fixed, so the glass
   always has something to frost. */
.mando-field { position: fixed; inset: 0; z-index: 0; pointer-events: none; background: var(--backdrop); }
.page { position: relative; z-index: 1; overflow-x: clip; }

/* ── Surfaces ──────────────────────────────────────────────────────────── */
.lg {
  position: relative; isolation: isolate; border-radius: 26px;
  background: var(--glass-tint);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  box-shadow: inset 0 1px 0.5px var(--glass-inner), inset 0 -8px 16px -12px var(--glass-shade),
    0 1px 2px var(--glass-shade), 0 12px 36px -8px var(--glass-shade);
}
/* The specular rim: a 1px 145° ring, bright top-left and bottom-right. */
.lg::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(145deg, var(--glass-rim-hi), var(--glass-rim-lo) 38%, var(--glass-rim-lo) 62%, var(--glass-rim-hi));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude;
}
/* The top sheen. */
.lg::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: -1;
  background: radial-gradient(120% 60% at 30% 0%, var(--glass-inner), transparent 70%);
}
.sheet { background: var(--sheet); border-radius: var(--r-sheet); box-shadow: var(--sheet-shadow); }
.well { background: var(--sheet-2); border-radius: var(--r-nested); }
.inverse {
  background: var(--panel); color: var(--panel-ink); border-radius: var(--r-sheet);
  box-shadow: inset 0 0 0 1px var(--panel-rim), var(--sheet-shadow);
}
/* Only for sheets that are links: a small lift answers the pointer. */
.hoverlift { transition: transform 0.2s var(--press), box-shadow 0.18s ease; }
.hoverlift:hover { transform: translateY(-2px); box-shadow: var(--sheet-shadow-hover); }

/* The signature: words still being heard sit in frosted caramel glass. */
.live {
  padding: 0 0.18em; margin: 0 -0.04em; border-radius: 0.34em; color: var(--ink);
  background: linear-gradient(var(--live-sheen), transparent 60%), var(--live-glass);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--live) var(--live-rim-mix), transparent), inset 0 1px 0 var(--live-top);
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}

/* ── Navigation: a floating glass capsule ──────────────────────────────── */
.site-nav { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 10px); z-index: 20; margin-top: 10px; padding-inline: 16px; }
.site-nav .bar {
  max-width: 1120px; margin: 0 auto; height: 58px; padding: 0 8px 0 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  border-radius: 999px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: -0.01em; text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.nav-links { display: flex; gap: 2px; align-items: center; font-size: 15px; font-weight: 600; }
.nav-links a:not(.btn) { text-decoration: none; color: var(--ink-2); padding: 9px 13px; border-radius: 999px; transition: background-color 0.18s ease, color 0.18s ease; }
.nav-links a:not(.btn):hover { color: var(--ink); background: var(--glass-hover); }
.nav-links .btn { margin-left: 6px; }
@media (max-width: 760px) { .nav-links a:not(.btn) { display: none; } }
@media (max-width: 360px) {
  .site-nav { padding-inline: 10px; }
  .site-nav .bar { padding-left: 14px; }
  .brand { font-size: 17px; }
}

/* ── Buttons: capsules that press with a small spring ──────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 9px; border: 0; border-radius: 999px; padding: 13px 22px;
  font: 600 16px/1.2 var(--sans); white-space: nowrap; text-decoration: none; cursor: pointer;
  transition: transform 0.2s var(--press), background-color 0.18s ease, box-shadow 0.18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: scale(0.96); }
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: color-mix(in srgb, var(--accent) 88%, transparent); color: var(--on-accent);
  box-shadow: inset 0 1px 0 var(--accent-rim), 0 2px 8px -2px var(--accent);
}
.btn-primary:hover { background: var(--accent); }
.btn-glass {
  background: var(--glass-tint-strong); color: var(--ink);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  box-shadow: inset 0 1px 0 var(--glass-rim-hi), inset 0 0 0 1px color-mix(in srgb, var(--sheet-line) 70%, transparent), 0 1px 2px var(--glass-shade);
}
.btn-glass:hover { background: var(--glass-hover); }
.btn-glass:active { box-shadow: inset 0 1px 0 var(--glass-rim-hi), 0 0 0 4px var(--select); }
.site-nav .btn { padding: 9px 18px; font-size: 15px; }

/* ── Segmented control: a capsule track with a knob that slides ────────── */
.seg {
  position: relative; display: inline-flex; flex-wrap: wrap; gap: 2px; padding: 3px; border-radius: 999px;
  background: var(--sheet-2); box-shadow: inset 0 0 0 1px var(--sheet-line);
}
.seg button {
  position: relative; z-index: 1; font: 600 14px/1 var(--sans); color: var(--ink-2);
  background: transparent; border: 0; padding: 10px 16px; border-radius: 999px; cursor: pointer;
  transition: color 0.18s ease;
}
.seg button:hover, .seg button[aria-pressed="true"] { color: var(--ink); }
.seg-bubble {
  position: absolute; z-index: 0; top: 0; left: 0; border-radius: 999px; pointer-events: none;
  background: var(--knob); box-shadow: var(--knob-shadow);
  transition: transform 0.32s var(--slide), width 0.32s var(--slide), height 0.32s var(--slide);
}
/* Without glass.js the pressed button carries the knob itself. */
.seg:not(.has-bubble) button[aria-pressed="true"] { background: var(--knob); box-shadow: var(--knob-shadow); }

/* ── Tags, utterances and the pipeline demo ────────────────────────────── */
.tag { display: inline-block; font: 700 12px/1.5 var(--sans); padding: 2px 10px; border-radius: 999px; vertical-align: 1px; white-space: nowrap; }
.tag.memory { color: var(--accent); background: var(--select); }
.tag.dictionary { color: var(--mauve); background: color-mix(in srgb, var(--mauve) 16%, transparent); }
.tag.pack { color: var(--ink-2); background: var(--sheet-2); box-shadow: inset 0 0 0 1px var(--sheet-line); }
.tag.alt, .tag.bad { color: var(--fail); background: color-mix(in srgb, var(--fail) 13%, transparent); }
.tag.good { color: var(--pass); background: color-mix(in srgb, var(--pass) 15%, transparent); }
.tag.wait { color: var(--warn); background: color-mix(in srgb, var(--warn) 16%, transparent); }
.tag.no { color: var(--ink-2); background: var(--sheet-2); }
.utter {
  font-family: var(--mono); font-size: 14px; line-height: 1.55;
  background: var(--sheet-2); border-radius: var(--r-nested); padding: 11px 14px; overflow-wrap: anywhere;
}
.utter mark { background: transparent; color: inherit; border-bottom: 2px solid currentColor; padding: 0 1px; }
.utter mark.bad { color: var(--fail); }
.utter mark.fix { color: var(--pass); }

.stages { display: grid; }
.stage { display: grid; grid-template-columns: 34px 1fr; gap: 0 14px; }
.stage .rail { display: flex; flex-direction: column; align-items: center; }
.stage .dot {
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  font: 800 13px/1 var(--sans); font-variant-numeric: tabular-nums; color: var(--accent);
  background: var(--select); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent);
}
.stage .rail::after {
  content: ""; flex: 1; width: 2px; margin-block: 5px; border-radius: 2px;
  background: linear-gradient(color-mix(in srgb, var(--accent) 45%, transparent), color-mix(in srgb, var(--accent) 8%, transparent));
}
.stage:last-child .rail::after { display: none; }
.stage .body { padding-bottom: 18px; display: grid; gap: 6px; min-width: 0; }
.stage h3 { margin: 4px 0 0; font: 700 17px/1.3 var(--sans); }
.stage .note { margin: 0; color: var(--ink-2); font-size: 15px; }

/* ── System settings ───────────────────────────────────────────────────── */
/* Reduced transparency: glass and buttons go opaque, no blur, no sheen. */
@media (prefers-reduced-transparency: reduce) {
  .lg, .btn-glass { -webkit-backdrop-filter: none; backdrop-filter: none; }
  .lg { background: var(--sheet); }
  .lg::after { display: none; }
  .btn-glass, .btn-glass:hover { background: var(--sheet-2); box-shadow: inset 0 0 0 1px var(--sheet-line); }
  .btn-primary, .btn-primary:hover { background: var(--accent); box-shadow: none; }
  .nav-links a:not(.btn):hover { background: var(--sheet-hover); }
  .live { background: var(--live-glass); box-shadow: inset 0 0 0 1px var(--live); }   /* a flat tint */
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .btn:hover, .hoverlift:hover { transform: none; }
}