/* PDFBro landing v4 — study desk, product-first */

@property --mock-canvas { syntax: "<color>"; inherits: true; initial-value: #1c1f24; }
@property --mock-accent { syntax: "<color>"; inherits: true; initial-value: #6b9e9a; }
@property --mock-paper { syntax: "<color>"; inherits: true; initial-value: #f7f4ee; }
@property --mock-ink { syntax: "<color>"; inherits: true; initial-value: #2a2e33; }
@property --mock-muted { syntax: "<color>"; inherits: true; initial-value: #6a655c; }
@property --ink-now { syntax: "<color>"; inherits: true; initial-value: #2f6fed; }

:root {
  --bg: #141310;
  --bg-2: #191714;
  --bg-3: #1e1b17;
  --paper: #f3eee4;
  --ink: #ece7dc;
  --ink-2: #a39c90;
  --ink-3: #6e685e;
  --accent: #6b9e9a;
  --accent-hi: #82b4b0;
  --accent-ink: #101412;
  --line: rgba(243, 238, 228, 0.08);
  --line-2: rgba(243, 238, 228, 0.14);
  --r: 8px;
  --serif: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --font: "Source Sans 3", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --wrap: 1240px;
  --gutter: clamp(1.1rem, 2.8vw, 1.85rem);
  --mock-canvas: #1c1f24;
  --mock-accent: #6b9e9a;
  --mock-paper: #f7f4ee;
  --mock-ink: #2a2e33;
  --mock-muted: #6a655c;
  --ink-now: #2f6fed;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 48px;
  --reader-w: 960px;
  --reader-h: 600px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  overflow-x: clip;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 55% 36% at 12% -6%, rgba(107, 158, 154, 0.07), transparent 58%),
    radial-gradient(ellipse 40% 28% at 88% 0%, rgba(201, 149, 108, 0.05), transparent 55%),
    linear-gradient(180deg, #191714 0%, #12110e 38%, #12110e 100%);
}

.grain {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 70;
  opacity: 0.042;
  mix-blend-mode: overlay;
}

img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 0.15em; }
a:hover { color: var(--accent-hi); }
button { font: inherit; color: inherit; }
.mono { font-family: var(--mono); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 90;
  padding: 0.4rem 0.7rem;
  background: var(--paper);
  color: var(--accent-ink);
  border-radius: 6px;
}
.skip:focus { left: var(--gutter); top: 0.35rem; }

/* Header */

.header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  background: transparent;
  transition: background 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
}
.header.is-scrolled {
  background: rgba(18, 17, 14, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.header-in {
  height: var(--header-h);
  width: min(100% - 2 * var(--gutter), var(--wrap));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.wordmark {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.12rem;
  color: var(--paper);
  text-decoration: none;
}
.wordmark:hover { color: var(--paper); }

.nav {
  display: flex;
  gap: 1.05rem;
  margin-right: auto;
}
.nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 560;
}
.nav a:hover { color: var(--ink); }

.header-end { display: flex; align-items: center; gap: 0.55rem; }

.lang {
  display: inline-flex;
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--bg-3);
}
.lang-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ink-2);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  padding: 0.3rem 0.52rem;
  cursor: pointer;
}
.lang-btn[aria-pressed="true"] {
  background: var(--paper);
  color: var(--accent-ink);
}

.lang-btn:focus-visible,
.btn:focus-visible,
.rd-tool:focus-visible,
.rd-ico:focus-visible,
.theme-mini:focus-visible,
.pass-card:focus-visible,
.phrase-hit:focus-visible,
.zen-win:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1.15;
  padding: 0.62rem 0.98rem;
  border-radius: var(--r);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: none; }
.btn-sm { padding: 0.36rem 0.7rem; font-size: 0.8rem; }
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover { background: var(--accent-hi); color: var(--accent-ink); }
.btn-ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--line-2);
}
.btn-ghost:hover {
  border-color: rgba(243, 238, 228, 0.32);
  background: rgba(243, 238, 228, 0.04);
  color: var(--paper);
}

.header-cta { display: none; }
@media (min-width: 860px) { .header-cta { display: inline-flex; } }

/* Hero */

.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
  padding: 1.6rem 0 2.4rem;
}

.hero-in {
  width: min(100% - 2 * var(--gutter), 1320px);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 4rem;
  align-items: center;
}

.hero-copy { max-width: 340px; min-width: 0; }

.hero-title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.2rem, 6.4vw, 4.4rem);
  line-height: 0.9;
  letter-spacing: -0.045em;
  font-weight: 700;
  color: var(--paper);
}
.hero-tag {
  margin: 0.75rem 0 0;
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.hero-lead {
  margin: 0.85rem 0 0;
  color: var(--ink-2);
  font-size: 1.02rem;
  max-width: 34ch;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.45rem;
}

.hero-stage {
  position: relative;
  width: 100%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.85rem;
}

.reader-fit {
  --app-w: 1048px;
  --app-h: 560px;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 1048 / 560;
  position: relative;
  overflow: hidden;
  border-radius: var(--r);
  container-type: inline-size;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 28px 64px rgba(0, 0, 0, 0.42);
}

.reader-frame {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--app-w);
  height: var(--app-h);
  border: 0;
  display: block;
  background: #1c1f24;
  transform-origin: 0 0;
  transform: scale(calc(100cqw / 1048));
}


/* Theme filmstrip — under the window, never beside */

.hero-rail {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.45rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.45rem 0.2rem 0.55rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(243, 238, 228, 0.18) transparent;
}
.hero-rail::-webkit-scrollbar { height: 6px; }
.hero-rail::-webkit-scrollbar-thumb {
  background: rgba(243, 238, 228, 0.16);
  border-radius: 4px;
}

.theme-mini {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.28rem;
  cursor: pointer;
  color: var(--ink-3);
  flex: 0 0 auto;
  transform: translateY(0);
  transition: transform 0.18s var(--ease), color 0.15s ease;
}
.theme-mini:hover { transform: translateY(-3px); color: var(--ink); }
.theme-mini.is-on { color: var(--paper); }
.theme-mini.is-on .tm-win {
  box-shadow: 0 0 0 1px var(--a), 0 2px 5px rgba(0, 0, 0, 0.28);
}

.tm-win {
  width: 72px;
  height: 46px;
  flex-shrink: 0;
  background: var(--c);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.28);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.hero-rail .tm-win { width: 84px; height: 54px; }
.tm-bar {
  height: 8px;
  background: color-mix(in srgb, var(--c) 78%, #000 22%);
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding-right: 3px;
  gap: 2px;
}
.tm-bar i {
  display: block;
  width: 5px;
  height: 5px;
  opacity: 0.45;
  background: currentColor;
}
.tm-bar i:nth-child(1) { height: 1px; width: 6px; align-self: center; }
.tm-bar i:nth-child(2) { box-shadow: inset 0 0 0 1px currentColor; background: transparent; }
.tm-bar i:nth-child(3) {
  background: transparent;
  position: relative;
}
.tm-bar i:nth-child(3)::before,
.tm-bar i:nth-child(3)::after {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 5px;
  height: 1px;
  background: currentColor;
}
.tm-bar i:nth-child(3)::before { transform: rotate(45deg); }
.tm-bar i:nth-child(3)::after { transform: rotate(-45deg); }
.tm-body { flex: 1; display: flex; min-height: 0; }
.tm-side {
  width: 14px;
  background: color-mix(in srgb, var(--c) 86%, #000 14%);
  position: relative;
}
.tm-side::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 4px;
  width: 5px;
  height: 5px;
  border-radius: 1px;
  background: var(--a);
}
.tm-page {
  margin: 3px 3px 3px 2px;
  background: var(--p);
  border-radius: 1px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2.4px;
  padding: 4px 3px;
}
.tm-page b {
  display: block;
  height: 2px;
  background: color-mix(in srgb, var(--i, #2a2e33) 28%, var(--p));
  border-radius: 1px;
}
.tm-page b:nth-child(1) { width: 70%; background: color-mix(in srgb, var(--i, #2a2e33) 72%, var(--p)); }
.tm-page b:nth-child(2) { width: 92%; }
.tm-page b:nth-child(3) { width: 56%; }

.tm-name {
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.01em;
  max-width: 76px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Reader mock — designed at 960×600, fitted with scale() */

.reader {
  width: 960px;
  height: 600px;
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: top left;
  border-radius: var(--r);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--mock-canvas);
  color: #d8d4cc;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.rd-titlebar {
  display: flex;
  align-items: center;
  height: 32px;
  padding-left: 10px;
  background: color-mix(in srgb, var(--mock-canvas) 88%, #000 12%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  flex-shrink: 0;
}
.rd-title {
  display: flex;
  align-items: center;
  gap: 0.38rem;
  min-width: 0;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.62);
}
.rd-app {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--mock-accent);
  flex-shrink: 0;
}
.rd-sep { opacity: 0.35; }
.rd-doc { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rd-zen {
  margin-left: auto;
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  cursor: pointer;
  opacity: 0.7;
}
.rd-zen:hover,
.rd-zen[aria-pressed="true"] { opacity: 1; color: var(--mock-accent); }

.rd-win { display: flex; height: 100%; }
.w {
  width: 44px;
  display: grid;
  place-items: center;
  position: relative;
}
.w.min::after {
  content: "";
  width: 9px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}
.w.max::after {
  content: "";
  width: 7px;
  height: 7px;
  border: 1px solid currentColor;
  opacity: 0.7;
}
.w.close::before,
.w.close::after {
  content: "";
  position: absolute;
  width: 9px;
  height: 1px;
  background: currentColor;
  opacity: 0.75;
}
.w.close::before { transform: rotate(45deg); }
.w.close::after { transform: rotate(-45deg); }
.w.close:hover { background: #e81123; color: #fff; }

.rd-toolbar {
  display: flex;
  align-items: center;
  gap: 0.32rem;
  height: 36px;
  padding: 0 8px;
  flex-shrink: 0;
  background: color-mix(in srgb, var(--mock-canvas) 94%, #000 6%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: opacity 0.4s var(--ease), background-color 0.3s ease;
}
.rd-textbtn {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.18rem 0.34rem;
  border-radius: 4px;
  cursor: pointer;
  opacity: 0.85;
}
.rd-textbtn:hover { background: rgba(255, 255, 255, 0.06); }
.rd-hair {
  width: 1px;
  height: 16px;
  background: rgba(255, 255, 255, 0.08);
  margin: 0 0.12rem;
}
.rd-cluster { display: flex; align-items: center; gap: 0.12rem; }
.rd-pg, .rd-zoom {
  font-size: 0.64rem;
  min-width: 3.5rem;
  text-align: center;
  opacity: 0.75;
}
.rd-ico, .rd-tool {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  width: 26px;
  height: 26px;
  border-radius: 5px;
  display: grid;
  place-items: center;
  cursor: pointer;
  opacity: 0.78;
}
.rd-ico:hover, .rd-tool:hover { background: rgba(255, 255, 255, 0.07); opacity: 1; }
.rd-tool.is-on {
  background: color-mix(in srgb, var(--mock-accent) 28%, transparent);
  color: var(--mock-accent);
  opacity: 1;
}
.rd-t { font-size: 0.78rem; font-weight: 700; font-family: var(--font); }
.rd-tools { display: flex; gap: 1px; }
.rd-colors { display: flex; gap: 4px; margin-left: 0.2rem; }
.rd-dot {
  appearance: none;
  border: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--d);
  cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22);
  padding: 0;
}
.rd-dot.is-on { box-shadow: 0 0 0 1.5px var(--mock-canvas), 0 0 0 3px var(--d); }
.rd-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.12rem;
}
.rd-save {
  font-size: 0.66rem;
  font-weight: 600;
  opacity: 0.7;
  padding: 0 0.28rem;
}
.rd-erase { opacity: 0.72; font-size: 0.64rem; }

.rd-body {
  flex: 1;
  display: flex;
  min-height: 0;
  background: color-mix(in srgb, var(--mock-canvas) 72%, #0a0908 28%);
  transition: background-color 0.3s ease;
}
.rd-side {
  width: 124px;
  flex-shrink: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  background: color-mix(in srgb, var(--mock-canvas) 92%, #000 8%);
  transition: opacity 0.4s var(--ease), width 0.4s var(--ease), border-width 0.4s ease;
}
.rd-tabs {
  display: flex;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.rd-tab {
  flex: 1;
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.45rem 0.12rem;
  cursor: pointer;
  opacity: 0.45;
}
.rd-tab.is-on {
  opacity: 0.9;
  box-shadow: inset 0 -1px 0 var(--mock-accent);
  color: var(--mock-accent);
}
.rd-thumbs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 8px; }
.rd-thumb {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    linear-gradient(#fff6 0 0),
    var(--mock-paper);
  height: 48px;
  border-radius: 3px;
  cursor: pointer;
  position: relative;
  padding: 0;
  overflow: hidden;
}
.rd-thumb::before {
  content: "";
  position: absolute;
  inset: 5px 6px 12px;
  background:
    repeating-linear-gradient(
      to bottom,
      color-mix(in srgb, var(--mock-ink) 18%, transparent) 0 1px,
      transparent 1px 5px
    );
  opacity: 0.55;
}
.rd-thumb span {
  position: absolute;
  right: 3px;
  bottom: 2px;
  font-family: var(--mono);
  font-size: 0.5rem;
  color: rgba(255, 255, 255, 0.55);
}
.rd-thumb.is-on {
  border-color: var(--mock-accent);
  box-shadow: 0 0 0 1px var(--mock-accent);
}
.rd-bms { padding: 4px 8px 10px; }
.rd-bml {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  opacity: 0.4;
  margin-bottom: 4px;
}
.rd-bm, .rd-toc {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  display: block;
  width: 100%;
  text-align: left;
  font-size: 0.64rem;
  padding: 0.26rem 0.28rem;
  border-radius: 4px;
  cursor: pointer;
  opacity: 0.65;
}
.rd-bm:hover, .rd-toc:hover { background: rgba(255, 255, 255, 0.05); }
.rd-bm.is-on, .rd-toc.is-on {
  background: color-mix(in srgb, var(--mock-accent) 18%, transparent);
  color: var(--mock-accent);
  opacity: 1;
}
.rd-panel[hidden] { display: none; }

.rd-view {
  flex: 1;
  min-width: 0;
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px 28px 28px;
}

.rd-sheet {
  position: relative;
  width: min(100%, 460px);
  flex-shrink: 0;
  transform-origin: top center;
}

.rd-paper {
  position: relative;
  width: 100%;
  font-family: var(--serif);
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 27px,
      color-mix(in srgb, var(--mock-ink) 7%, transparent) 27px,
      color-mix(in srgb, var(--mock-ink) 7%, transparent) 28px
    ),
    var(--mock-paper);
  color: var(--mock-ink);
  border-radius: 2px;
  padding: 1.4rem 1.55rem 1.7rem 1.7rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.24);
  transition: background-color 0.3s ease, color 0.3s ease;
}
.rd-paper::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  opacity: 0.22;
  background:
    radial-gradient(ellipse 80% 50% at 12% 8%, rgba(90, 70, 40, 0.08), transparent 46%),
    repeating-linear-gradient(115deg, transparent 0 2px, rgba(70, 55, 35, 0.03) 2px 3px);
  mix-blend-mode: multiply;
}
.rd-paper::after {
  content: "";
  position: absolute;
  left: 1.2rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: color-mix(in srgb, #c45a4a 32%, transparent);
  pointer-events: none;
  opacity: 0.5;
  z-index: 0;
}
.rd-paper > * { position: relative; z-index: 1; }

.ink-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 4;
  touch-action: none;
}
.reader[data-tool="pen"] .ink-layer,
.reader[data-tool="highlight"] .ink-layer { pointer-events: auto; }

.rd-note {
  position: absolute;
  z-index: 5;
  min-width: 92px;
  max-width: 168px;
  padding: 0.36rem 0.48rem 0.4rem;
  background: color-mix(in srgb, var(--ink-now) 14%, #fff6dc);
  border: 1px solid color-mix(in srgb, var(--ink-now) 40%, #c8b48a);
  border-left: 3px solid var(--ink-now);
  border-radius: 3px;
  font-family: var(--serif);
  font-size: 0.74rem;
  font-style: italic;
  line-height: 1.35;
  color: var(--mock-ink);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
  cursor: grab;
  outline: none;
}
.rd-note:focus,
.rd-note:focus-within { cursor: text; box-shadow: 0 0 0 2px color-mix(in srgb, var(--ink-now) 35%, transparent); }
.rd-note.is-drag { cursor: grabbing; }

.rd-paper.is-flip { animation: paperflip 0.32s var(--ease); }
@keyframes paperflip {
  0% { opacity: 0.4; transform: translateY(5px); }
  100% { opacity: 1; transform: none; }
}

.pk {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mock-muted);
}
.ph {
  margin: 0.32rem 0 0;
  font-size: 1.22rem;
  letter-spacing: -0.03em;
  font-weight: 650;
  font-family: var(--serif);
}
.ps {
  margin: 0.22rem 0 0;
  font-size: 0.78rem;
  color: var(--mock-muted);
  font-family: var(--serif);
  font-style: italic;
}
.ex {
  margin: 0.85rem 0 0;
  padding-left: 1.2rem;
  font-size: 0.92rem;
  line-height: 1.72;
}
.ex li { margin: 0.12rem 0; }
.hint { color: var(--mock-muted); font-size: 0.72rem; font-family: var(--font); font-style: italic; }
.dialogue {
  margin-top: 1.1rem;
  padding-top: 0.7rem;
  border-top: 1px solid color-mix(in srgb, var(--mock-ink) 10%, transparent);
  font-size: 0.9rem;
  line-height: 1.65;
}
.dialogue p { margin: 0.15rem 0 0; }
.pg-foot {
  margin-top: 1.1rem;
  text-align: center;
  font-size: 0.62rem;
  color: var(--mock-muted);
  letter-spacing: 0.04em;
}

.blank {
  display: inline-block;
  min-width: 4.4ch;
  border-bottom: 1px solid color-mix(in srgb, var(--mock-ink) 28%, transparent);
  color: var(--ink-now);
  font-weight: 650;
  font-style: italic;
  cursor: text;
  position: relative;
}
.blank:not(.is-filled)::after {
  content: "________";
  color: var(--mock-muted);
  font-weight: 400;
  font-style: normal;
  letter-spacing: -0.04em;
}
.blank.is-filled::after { content: none; }
.blank.is-edit { box-shadow: 0 2px 0 var(--ink-now); }
.blank.is-writing .ink-text {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  max-width: 0;
  animation: writein 0.7s var(--ease) forwards;
  border-right: 1.5px solid var(--ink-now);
}
@keyframes writein {
  to { max-width: 8ch; border-right-color: transparent; }
}

.phrase, .word {
  border-radius: 2px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
.word { cursor: pointer; }
.word:hover { background: color-mix(in srgb, var(--mock-accent) 16%, transparent); }
.phrase.is-marked,
.word.is-marked { background: rgba(250, 214, 72, 0.48); }
.phrase.is-sel,
.word.is-sel { background: color-mix(in srgb, var(--mock-accent) 28%, transparent); }
.reader[data-tool="highlight"] .phrase,
.reader[data-tool="highlight"] .word,
.reader[data-tool="select"] .word,
.reader[data-tool="select"] .phrase { cursor: pointer; }
.reader[data-tool="highlight"] .phrase:hover,
.reader[data-tool="highlight"] .word:hover { background: rgba(250, 214, 72, 0.22); }
.reader[data-tool="pen"],
.reader[data-tool="pen"] .rd-paper,
.reader[data-tool="pen"] .ink-layer { cursor: crosshair; }
.reader[data-tool="pen"] .word { cursor: pointer; }
.reader[data-tool="highlight"],
.reader[data-tool="highlight"] .rd-paper,
.reader[data-tool="highlight"] .ink-layer { cursor: crosshair; }
.reader[data-tool="text"],
.reader[data-tool="text"] .rd-paper { cursor: text; }
.reader[data-tool="select"],
.reader[data-tool="select"] .rd-paper { cursor: default; }
.reader[data-tool="pen"] .rd-paper,
.reader[data-tool="highlight"] .rd-paper {
  user-select: none;
  -webkit-user-select: none;
}

.char-pop {
  position: absolute;
  z-index: 5;
  display: flex;
  gap: 3px;
  padding: 4px;
  background: #fffdf8;
  border: 1px solid rgba(42, 46, 51, 0.12);
  border-radius: 6px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}
.char-pop[hidden] { display: none; }
.char-btn {
  appearance: none;
  border: 0;
  background: #f3f0ea;
  width: 26px;
  height: 26px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: 650;
  font-family: var(--serif);
  color: #2a2e33;
}
.char-btn:hover, .char-btn.is-hot { background: var(--mock-accent); color: #fff; }

.tr-pop, .tr-card {
  position: absolute;
  z-index: 6;
  min-width: 156px;
  padding: 0.55rem 0.7rem 0.6rem;
  background: #fffdf8;
  border: 1px solid rgba(42, 38, 30, 0.12);
  border-radius: 4px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7) inset,
    0 10px 24px rgba(20, 18, 14, 0.18);
  transform: rotate(-0.4deg) scale(0.96);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.2s var(--ease), opacity 0.2s ease;
}
.tr-pop.is-on, .tr-card.is-on {
  transform: rotate(-0.4deg) scale(1);
  opacity: 1;
  pointer-events: auto;
}
.tr-pop[hidden], .tr-card[hidden] { display: none !important; }
.tr-src {
  font-size: 0.66rem;
  color: #7a7468;
  letter-spacing: 0.02em;
}
.tr-dst {
  margin-top: 0.18rem;
  font-family: var(--serif);
  font-size: 0.98rem;
  font-weight: 650;
  color: #2a2620;
}

.demo-ptr {
  position: absolute;
  z-index: 20;
  left: 0;
  top: 0;
  pointer-events: none;
  opacity: 0;
  transition: left 0.5s var(--ease), top 0.5s var(--ease), opacity 0.25s ease;
  filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.35));
}
.demo-ptr.is-on { opacity: 1; }
.demo-ptr[hidden] { display: none; }

/* Zen */
.reader.is-zen .rd-toolbar,
.reader.is-zen .rd-side {
  opacity: 0;
  pointer-events: none;
}
.reader.is-zen .rd-side { width: 0; border: 0; }
.reader.is-zen .rd-view { padding: 32px 40px; }
.reader.is-zen .rd-sheet { width: min(100%, 500px); }

/* Light chrome */
.reader.is-light {
  color: #2c2a26;
  border-color: rgba(0, 0, 0, 0.08);
}
.reader.is-light .rd-titlebar,
.reader.is-light .rd-toolbar,
.reader.is-light .rd-side {
  background: color-mix(in srgb, var(--mock-canvas) 70%, #fff 30%);
  border-color: rgba(0, 0, 0, 0.06);
}
.reader.is-light .rd-title { color: rgba(20, 18, 14, 0.55); }
.reader.is-light .rd-body { background: color-mix(in srgb, var(--mock-canvas) 80%, #d4cfc4 20%); }
.reader.is-light .rd-tab { opacity: 0.5; }
.reader.is-light .rd-thumb { border-color: rgba(0, 0, 0, 0.08); }
.reader.is-light .rd-thumb span { color: rgba(20, 18, 14, 0.5); }
.reader.is-light .rd-hair { background: rgba(0, 0, 0, 0.08); }
.reader.is-light .rd-ico:hover,
.reader.is-light .rd-tool:hover,
.reader.is-light .rd-textbtn:hover { background: rgba(0, 0, 0, 0.05); }
.reader.is-light .w.close:hover { color: #fff; }

/* Proof strip */

.proof {
  position: relative;
  margin-top: 2.5rem;
  overflow: hidden;
}
.proof img {
  width: 100%;
  height: min(68vh, 620px);
  object-fit: cover;
  object-position: top center;
  filter: saturate(0.92);
}
.proof::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(18, 17, 14, 0.62), transparent 16%, transparent 84%, rgba(18, 17, 14, 0.62)),
    linear-gradient(180deg, rgba(18, 17, 14, 0.28), transparent 22%, transparent 62%, rgba(18, 17, 14, 0.88));
  pointer-events: none;
}
.proof-line {
  position: absolute;
  left: max(var(--gutter), calc((100% - var(--wrap)) / 2));
  bottom: 1.4rem;
  z-index: 1;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--paper);
  letter-spacing: -0.02em;
}

/* Beats — large type, one animated detail each */

.beats {
  width: min(100% - 2 * var(--gutter), var(--wrap));
  margin: 0 auto;
  padding: 2rem 0 1rem;
}

.beat {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2.5rem, 7vw, 5.5rem);
  align-items: center;
  padding: 4rem 0;
}
.beat:first-child { padding-top: 3rem; }
.beat-flip { grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); }
.beat-flip .beat-copy { order: 2; }

.beat-copy h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.6rem, 6.2vw, 4.4rem);
  letter-spacing: -0.04em;
  line-height: 0.98;
  font-weight: 650;
  color: var(--paper);
}
.beat-copy p {
  margin: 1rem 0 0;
  color: var(--ink-2);
  font-size: 1.12rem;
  max-width: 28ch;
}

.beat-visual { position: relative; min-width: 0; }

.ink-sheet {
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 31px,
      rgba(42, 38, 30, 0.07) 31px,
      rgba(42, 38, 30, 0.07) 32px
    ),
    #f4efe6;
  color: #2a2620;
  font-family: var(--serif);
  padding: 1.6rem 1.7rem 1.8rem 2rem;
  border-radius: 2px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  position: relative;
}
.ink-sheet::after {
  content: "";
  position: absolute;
  left: 1.35rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(196, 90, 74, 0.35);
}
.ink-line {
  position: relative;
  z-index: 1;
  margin: 1.1rem 0 0;
  font-size: 1.35rem;
  line-height: 1.7;
}
.ink-blank {
  position: relative;
  display: inline-block;
  min-width: 5.2ch;
  border-bottom: 1px solid rgba(42, 38, 30, 0.28);
  color: #2f6fed;
  font-style: italic;
  font-weight: 650;
}
.hand {
  display: inline-block;
  overflow: hidden;
  max-width: 0;
  white-space: nowrap;
  opacity: 0;
}
.beat.is-in .hand {
  animation: writein 0.85s var(--ease) 0.15s forwards;
  opacity: 1;
}
.hand-svg {
  position: absolute;
  left: -4px;
  top: -8px;
  width: 92px;
  height: 36px;
  overflow: visible;
  pointer-events: none;
}
.hand-svg path {
  fill: none;
  stroke: #2f6fed;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
}
.beat.is-in .hand-svg path {
  animation: inkdraw 1.1s var(--ease) 0.05s forwards;
}
@keyframes inkdraw {
  to { stroke-dashoffset: 0; }
}
.bloom {
  background: rgba(250, 214, 72, 0);
  color: inherit;
  border-radius: 2px;
  padding: 0 0.08em;
}
.beat.is-in .bloom {
  animation: hlbloom 0.7s var(--ease) 0.85s forwards;
}
@keyframes hlbloom {
  to { background: rgba(250, 214, 72, 0.48); }
}

.phrase-line {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3.4vw, 2.35rem);
  color: var(--paper);
  letter-spacing: -0.03em;
  line-height: 1.35;
}
.phrase-hit {
  appearance: none;
  border: 0;
  background: rgba(250, 214, 72, 0);
  color: inherit;
  font: inherit;
  padding: 0 0.06em;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.25s ease;
}
.phrase-hit:hover,
.phrase-hit.is-on { background: rgba(250, 214, 72, 0.48); }
.beat[data-scene="translate"] .tr-card {
  position: relative;
  display: inline-block;
  margin-top: 1.4rem;
  left: auto;
  top: auto;
}

.zen-win {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--mock-canvas);
  color: #d8d4cc;
  width: 100%;
  max-width: 420px;
  height: 280px;
  border-radius: var(--r);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-align: left;
  cursor: pointer;
  padding: 0;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}
.zw-bar {
  height: 28px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  background: color-mix(in srgb, var(--mock-canvas) 86%, #000 14%);
  transition: opacity 0.5s var(--ease), height 0.5s var(--ease);
}
.zw-title {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.68rem;
  padding-left: 10px;
  opacity: 0.7;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
}
.zw-title i {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--mock-accent);
  flex-shrink: 0;
}
.zw-bar .rd-win { margin-left: auto; height: 28px; }
.zw-bar .w { width: 36px; }
.zw-tools {
  height: 24px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  flex-shrink: 0;
  transition: opacity 0.5s var(--ease), height 0.5s var(--ease), padding 0.5s ease;
}
.zw-tools i {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
}
.zw-tools i.on { background: var(--mock-accent); }
.zw-body { flex: 1; display: flex; min-height: 0; }
.zw-side {
  width: 48px;
  background: color-mix(in srgb, var(--mock-canvas) 90%, #000);
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  flex-shrink: 0;
  transition: width 0.55s var(--ease), opacity 0.45s ease, border-width 0.45s ease;
}
.zw-page {
  margin: 16px auto;
  width: min(72%, 240px);
  background: var(--mock-paper);
  color: var(--mock-ink);
  font-family: var(--serif);
  padding: 1rem 1.05rem;
  font-size: 0.88rem;
  line-height: 1.55;
  border-radius: 2px;
  transition: width 0.55s var(--ease), margin 0.55s var(--ease);
}
.zw-page p { margin: 0.18rem 0; }

.beat.is-in .zen-win:not(.is-open) .zw-bar,
.beat.is-in .zen-win:not(.is-open) .zw-tools {
  opacity: 0;
  height: 0;
  overflow: hidden;
  border: 0;
  padding: 0;
}
.beat.is-in .zen-win:not(.is-open) .zw-side {
  width: 0;
  opacity: 0;
  border: 0;
}
.beat.is-in .zen-win:not(.is-open) .zw-page {
  width: min(86%, 280px);
  margin: 28px auto;
}

/* Download card */

.dl {
  padding: 5.5rem var(--gutter) 3rem;
  display: flex;
  justify-content: center;
}
.dl-card {
  width: min(100%, 380px);
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}
.dl-bar {
  height: 32px;
  display: flex;
  align-items: center;
  background: #1a1815;
  border-bottom: 1px solid var(--line);
}
.dl-bar-title {
  padding-left: 12px;
  font-size: 0.72rem;
  opacity: 0.65;
}
.dl-bar .rd-win { margin-left: auto; height: 32px; }
.dl-bar .w { width: 40px; }
.dl-body {
  padding: 1.35rem 1.3rem 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}
.dl-file-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.dl-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: rgba(107, 158, 154, 0.12);
  border-radius: 6px;
}
.dl-file {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.dl-ver {
  font-size: 0.72rem;
  color: var(--ink-3);
  margin-top: 0.12rem;
}
.dl-meta {
  margin: 0;
  font-size: 0.72rem;
  color: var(--ink-3);
}

/* Theme Pass */

.pass {
  padding: 3.5rem 0 5rem;
}
.pass-in {
  width: min(100% - 2 * var(--gutter), var(--wrap));
  margin-inline: auto;
}
.pass-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.6rem;
}
.pass-head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.035em;
  font-weight: 650;
  color: var(--paper);
}
.pass-head p {
  margin: 0.45rem 0 0;
  color: var(--ink-2);
  max-width: 36ch;
}
.price { text-align: right; }
.price-n {
  display: block;
  font-family: var(--serif);
  font-size: 2rem;
  letter-spacing: -0.03em;
  color: var(--paper);
}
.price-s {
  font-size: 0.78rem;
  color: var(--ink-3);
}

.pass-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.85rem;
}
.pass-card {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: var(--r);
  padding: 0.7rem 0.65rem 0.6rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
  color: var(--ink-3);
  text-align: left;
  transition: transform 0.18s var(--ease), border-color 0.15s ease, color 0.15s ease;
}
.pass-card:hover { transform: translateY(-2px); color: var(--ink); border-color: var(--line-2); }
.pass-card.is-on { color: var(--paper); border-color: var(--a); }
.pass-card .tm-win { width: 100%; height: 72px; }
.pass-card .tm-name { max-width: 100%; font-size: 0.62rem; display: flex; align-items: center; gap: 0.35rem; }
.tm-free {
  font-size: 0.54rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: var(--accent);
  border-radius: 3px;
  padding: 0.08rem 0.28rem;
}

.pass-cta {
  margin-top: 1.6rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
}
.pass-import {
  margin: 0;
  font-size: 0.72rem;
  color: var(--ink-3);
}

/* Footer */

.footer {
  border-top: 1px solid var(--line);
  padding: 0.9rem 0 1.15rem;
}
.footer-in {
  width: min(100% - 2 * var(--gutter), var(--wrap));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--ink-3);
}
.footer .wordmark { font-size: 0.95rem; }
.footer a {
  color: var(--ink-3);
  text-decoration: none;
}
.footer a:hover { color: var(--ink); }
.footer .lang { margin-left: auto; }

/* Reveal */

.reveal { opacity: 1; transform: none; }
.motion .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.motion .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* Responsive */

@media (max-width: 980px) {
  .hero-in {
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
  }
  .hero {
    min-height: 0;
    padding-top: 1.2rem;
  }
  .hero-copy { max-width: 36ch; }
  .beat,
  .beat-flip {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 4.2rem 0;
    gap: 1.8rem;
  }
  .beat-flip .beat-copy { order: 0; }
  .pass-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .nav { display: none; }
}

@media (max-width: 640px) {
  .pass-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pass-head { flex-direction: column; align-items: flex-start; }
  .price { text-align: left; }
  .proof img { height: 42vh; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn:hover, .theme-mini:hover, .pass-card:hover { transform: none; }
  .hand, .hand-svg path, .bloom, .rd-paper.is-flip { animation: none !important; }
  .hand { max-width: 8ch; opacity: 1; }
  .hand-svg path { stroke-dashoffset: 0; }
  .bloom { background: rgba(250, 214, 72, 0.48); }
  .motion .reveal { opacity: 1; transform: none; transition: none; }
}