/* ==========================================================================================
   PlotSpring — landing page
   Tokens are the app's (src/styles.scss, "The Desk"): Paper (light) and Lamplight (dark),
   the logo's blue as the pen, gold for goldens, hard top-left-lamp shadows, Courier labels.
   ========================================================================================== */

:root {
  color-scheme: light;
  --paper: #fdfcfa;
  --sheet: #ffffff;
  --paper-deep: #eef0f2;
  --ink: #14181c;
  --ink-soft: #3f4850;
  --ink-faint: #5f6a74;
  --ink-ghost: rgba(20, 24, 28, 0.34);
  --pen: #0e6f8f;
  --pen-soft: rgba(14, 111, 143, 0.12);
  --pen-ink: #0b5f7a;
  --pen-bright: #1bafe0;
  --selection-fg: #ffffff;
  --gold: #c29a1f;
  --gold-soft: rgba(194, 154, 31, 0.16);
  --gold-ink: #6e5510;
  --moss: #4f6b3a;
  --rule: rgba(20, 24, 28, 0.18);
  --rule-soft: rgba(20, 24, 28, 0.09);
  --desk: #e4e7ea;
  --lift: 7px 8px 0 rgba(20, 24, 28, 0.07);
  --lift-sm: 3px 4px 0 rgba(20, 24, 28, 0.08);
  --grain-opacity: 0.12;

  --font-display: "Fraunces Variable", Georgia, serif;
  --font-body: "Newsreader Variable", Georgia, serif;
  --font-mono: "Courier Prime", "Courier New", Courier, monospace;
  --font-hand: "Caveat", cursive;

  --radius-slip: 2px;
  --radius-sheet: 4px;
  --ease-desk: cubic-bezier(0.2, 0.7, 0.2, 1);

  --gutter: clamp(1.25rem, 5vw, 5rem);
  --measure: 76rem;
}

.dark {
  color-scheme: dark;
  --paper: #131719;
  --sheet: #1b2124;
  --paper-deep: #0d1012;
  --ink: #eef2f4;
  --ink-soft: rgba(238, 242, 244, 0.78);
  --ink-faint: rgba(238, 242, 244, 0.55);
  --ink-ghost: rgba(238, 242, 244, 0.34);
  --pen: #1bafe0;
  --pen-soft: rgba(27, 175, 224, 0.18);
  --pen-ink: #5fcaea;
  --pen-bright: #5fcaea;
  --selection-fg: #131719;
  --gold: #e6bc47;
  --gold-soft: rgba(230, 188, 71, 0.2);
  --gold-ink: #e6bc47;
  --moss: #8fb072;
  --rule: rgba(238, 242, 244, 0.16);
  --rule-soft: rgba(238, 242, 244, 0.08);
  --desk: #0b0e10;
  --lift: 7px 8px 0 rgba(0, 0, 0, 0.45);
  --lift-sm: 3px 4px 0 rgba(0, 0, 0, 0.45);
  --grain-opacity: 0.1;
}

/* ------------------------------------------------------------------------------ base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  background: var(--desk);
  color: var(--ink);
}

body {
  font-family: var(--font-body);
  font-optical-sizing: auto;
  font-size: 1.125rem;
  line-height: 1.6;
  background: var(--desk);
  overflow-x: hidden;
  transition: background 0.4s var(--ease-desk), color 0.4s var(--ease-desk);
}

::selection { background: var(--pen); color: var(--selection-fg); }

a { color: inherit; }
img { display: block; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}
.dark .grain { mix-blend-mode: screen; }

/* ------------------------------------------------------------------------------ type */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  line-height: 1.55;
}
.mono-inline { font-family: var(--font-mono); font-size: 0.85em; color: var(--pen-ink); }
.pen-ink { color: var(--pen-ink); }
.gold-ink { color: var(--gold-ink); }

.display, .hero-title, .display-sm, .thesis-line {
  text-wrap: balance;
  font-family: var(--font-display);
  font-variation-settings: "SOFT" 40, "WONK" 0;
  color: var(--ink);
}
.display em, .hero-title em, .display-sm em, .thesis-line em, .numeral {
  font-style: italic;
  color: var(--pen);
  font-variation-settings: "SOFT" 70, "WONK" 1;
}
.display {
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 540;
  max-width: 17em;
}
.display-sm {
  font-size: 1.35rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 560;
}
.lede {
  text-wrap: pretty;
  font-size: 1.22rem;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 36em;
}
.lede strong { color: var(--ink); font-weight: 600; }
.hand {
  font-family: var(--font-hand);
  font-size: 1.6rem;
  line-height: 1.15;
  color: var(--pen);
}

/* ------------------------------------------------------------------------------ buttons */
.btn, .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  padding: 0.95em 1.9em;
  border-radius: var(--radius-slip);
  border: 1px solid var(--ink);
  transition: background 0.25s var(--ease-desk), color 0.25s var(--ease-desk),
    border-color 0.25s var(--ease-desk), transform 0.15s var(--ease-desk), box-shadow 0.25s var(--ease-desk);
}
.btn { background: var(--ink); color: var(--paper); box-shadow: var(--lift-sm); }
.btn:hover { background: var(--pen); border-color: var(--pen); color: var(--selection-fg); }
.btn:active { transform: translate(2px, 2px); box-shadow: none; }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn.big { font-size: 0.85rem; padding: 1.15em 2.6em; }
.btn-ghost.small { font-size: 0.64rem; padding: 0.6em 1.1em; }

.link-mono {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
}
.link-mono:hover { color: var(--pen); }

/* ------------------------------------------------------------------------------ desk objects */
.sheet {
  position: relative;
  background: var(--sheet);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-sheet);
  box-shadow: var(--lift);
}
.slip {
  position: relative;
  background: var(--sheet);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-slip);
  box-shadow: var(--lift-sm);
}

.sheet-head, .sheet-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.sheet-head .eyebrow { white-space: nowrap; }
.sheet-head { padding-bottom: 0.9rem; border-bottom: 1px solid var(--rule-soft); margin-bottom: 1.4rem; }
.sheet-foot { padding-top: 0.9rem; border-top: 1px solid var(--rule-soft); margin-top: 1.4rem; }

.manuscript {
  font-family: var(--font-body);
  font-size: 1.28rem;
  line-height: 1.85;
  color: var(--ink);
  padding-left: 1.1rem;
  border-left: 3px solid var(--gold);
}
.manuscript.small { font-size: 1.05rem; line-height: 1.75; border-left-color: var(--ink-faint); }
.manuscript.faded { color: var(--ink-faint); border-left-color: var(--rule); margin-top: 0.9rem; }

/* The app's rubber stamp, verbatim: mono bold caps, 2px border, a tilt, noise-masked ink. */
.stamp {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.66rem;
  line-height: 1;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--pen);
  border: 2px solid currentColor;
  padding: 0.45em 0.55em 0.35em 0.7em;
  transform: rotate(-5deg);
  opacity: 0.86;
  white-space: nowrap;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='60'%3E%3Cfilter id='s'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='3' seed='4'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -2 1.55'/%3E%3C/filter%3E%3Crect width='120' height='60' filter='url(%23s)'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='60'%3E%3Cfilter id='s'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='3' seed='4'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -2 1.55'/%3E%3C/filter%3E%3Crect width='120' height='60' filter='url(%23s)'/%3E%3C/svg%3E");
  -webkit-mask-size: 120px 60px;
  mask-size: 120px 60px;
}
.stamp.gold { color: var(--gold); }
.stamp.ink { color: var(--ink-soft); }
.stamp.pen { color: var(--pen); }
.stamp.dashed { border-style: dashed; }
.stamp.big { font-size: 0.92rem; }

.folder-tab {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--sheet);
  padding: 0.7rem 1.6rem 0.6rem 1.2rem;
  border: 1px solid var(--rule-soft);
  border-bottom: 0;
  border-radius: var(--radius-sheet) var(--radius-sheet) 0 0;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 100%, 0 100%);
  margin-bottom: 1.6rem;
}

/* ------------------------------------------------------------------------------ masthead */
.masthead {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.85rem var(--gutter);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule-soft);
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.wordmark em {
  font-style: italic;
  color: var(--pen);
  font-variation-settings: "SOFT" 70, "WONK" 1;
}
.wordmark.small { font-size: 1.15rem; }
.masthead-nav { display: flex; gap: 1.8rem; margin-left: 1.5rem; }
.masthead-nav a {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--ink-soft);
  transition: color 0.12s;
}
.masthead-nav a:hover { color: var(--pen); }
.masthead-actions { display: flex; align-items: center; gap: 1.6rem; margin-left: auto; }
.masthead-actions .btn { padding: 0.75em 1.4em; }
.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 0.4em 0.2em;
}
.theme-switch:hover { color: var(--pen); }
.theme-glyph { font-size: 1rem; color: var(--gold); }

/* ------------------------------------------------------------------------------ hero */
.hero {
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(2.5rem, 5vw, 4.5rem) var(--gutter) clamp(3rem, 6vw, 5rem);
}
.hero-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) auto;
  column-gap: 4rem;
  align-items: end;
}
.hero-copy .eyebrow, .hero-title { grid-column: 1 / -1; }
.hero-copy .eyebrow { margin-bottom: 1.6rem; }
.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.035em;
  font-weight: 560;
  margin-bottom: 2rem;
}
.hero-title em { font-weight: 420; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; padding-bottom: 0.4rem; }

/* The spring: source sheet on the left, branches on the right, curves drawn by main.js. */
.spring {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr);
  column-gap: clamp(4rem, 11vw, 10rem);
  align-items: center;
  margin-top: clamp(3rem, 5vw, 4.5rem);
}
.spring-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}
.spring-lines path {
  fill: none;
  stroke: var(--pen);
  stroke-width: 1.5;
  stroke-linecap: round;
  opacity: 0.55;
}
.spring-lines circle { fill: var(--pen-bright); }

.spring-source { padding: 1.6rem 2rem 1.2rem; z-index: 1; }
.spring-source::before, .spring-source::after {
  /* the sheets stacked under the top one */
  content: "";
  position: absolute;
  inset: 0;
  background: var(--sheet);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-sheet);
  z-index: -1;
}
.spring-source::before { transform: translate(-9px, 10px) rotate(-1.2deg); box-shadow: var(--lift-sm); }
.spring-source::after { transform: translate(-4px, 5px) rotate(0.6deg); }
.spring-source .manuscript { min-height: 9.3em; }

.caret {
  display: inline-block;
  width: 2px;
  height: 1.15em;
  margin-left: 2px;
  vertical-align: -0.18em;
  background: var(--ink);
  animation: blink 1s steps(1) infinite;
}
.typing-done .caret { display: none; }
@keyframes blink { 50% { opacity: 0; } }

.spring-branches { display: grid; gap: 1.1rem; position: relative; z-index: 1; }
.branch {
  padding: 1rem 1.2rem 1.05rem;
  display: grid;
  gap: 0.45rem;
  opacity: 0;
  transform: translateX(14px);
  transition: opacity 0.5s var(--ease-desk), transform 0.5s var(--ease-desk);
}
.branch.on { opacity: 1; transform: none; }
.branch:nth-child(odd) { margin-left: -1.2rem; }
.branch:nth-child(2) { rotate: 0.5deg; }
.branch:nth-child(3) { rotate: -0.4deg; }
.branch .stamp { position: absolute; top: -0.8rem; right: 0.9rem; }
.branch-quote { font-style: italic; font-size: 1.08rem; color: var(--ink); line-height: 1.4; }
.branch-title { font-family: var(--font-display); font-weight: 560; font-size: 1.15rem; }
.facts { display: grid; gap: 0.1rem; }
.facts li::before { content: "— "; color: var(--pen); }
.style-sheet { display: grid; grid-template-columns: auto 1fr; column-gap: 1.2rem; }
.style-sheet dt { text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.68rem; padding-top: 0.12rem; }
.style-sheet dd { color: var(--ink); }
.chat-line { font-size: 1rem; line-height: 1.4; }
.chat-line.you { color: var(--ink-soft); }
.chat-line.you::before { content: "you  "; font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-faint); white-space: pre; }
.chat-line.desk { color: var(--ink); }
.chat-line.desk::before { content: "desk "; font-family: var(--font-mono); font-size: 0.7rem; color: var(--pen-ink); white-space: pre; }

/* ------------------------------------------------------------------------------ thesis */
.thesis {
  background: var(--paper);
  border-block: 1px solid var(--rule-soft);
  padding: clamp(4rem, 9vw, 7.5rem) var(--gutter);
  text-align: center;
}
.thesis-line {
  font-size: clamp(1.7rem, 3.6vw, 3rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 460;
  max-width: 22em;
  margin: 0 auto;
}
.underline {
  background-image: linear-gradient(var(--gold), var(--gold));
  background-size: 0% 0.12em;
  background-repeat: no-repeat;
  background-position: 0 92%;
  transition: background-size 0.9s var(--ease-desk) 0.4s;
}
.thesis-line.in .underline { background-size: 100% 0.12em; }

/* ------------------------------------------------------------------------------ chapters */
.chapter {
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(4.5rem, 9vw, 8rem) var(--gutter);
}
.chapter-alt {
  max-width: none;
  background: var(--paper);
  border-block: 1px solid var(--rule-soft);
}
.chapter-alt > * { max-width: calc(var(--measure) - 2 * var(--gutter)); margin-inline: auto; }
.chapter-head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.chapter-head .display { margin-bottom: 1.4rem; }

/* I · desk */
.desk-stage { margin-bottom: 4rem; }
.toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  background: var(--sheet);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-sheet) var(--radius-sheet) 0 0;
  padding: 0.7rem 1.2rem;
  font-family: var(--font-mono);
  color: var(--ink-soft);
  border-bottom: 0;
}
.tb-grip { color: var(--ink-faint); }
.tb-title { font-family: var(--font-display); font-style: italic; font-size: 1.15rem; color: var(--ink); }
.tb-sep { width: 1px; height: 1.4rem; background: var(--rule); }
.tb-icon { width: 1.15rem; height: 1.15rem; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.tb-seg { display: inline-flex; border: 1px solid var(--rule); font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; }
.tb-seg span { padding: 0.35em 0.8em; }
.tb-seg .on { background: var(--ink); color: var(--paper); }
.tb-mono { font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; }

.panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem;
  padding: 1.6rem;
  background: color-mix(in srgb, var(--desk) 70%, var(--paper-deep));
  border: 1px solid var(--rule-soft);
  border-top: 0;
  border-radius: 0 0 var(--radius-sheet) var(--radius-sheet);
}
.pane { padding: 1.5rem 1.7rem 1.8rem; display: grid; gap: 0.9rem; align-content: start; }
.pane-b { rotate: 0.4deg; }
.moment {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--gold-ink);
  background: var(--gold-soft);
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius-slip);
}

.ledger {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule);
}
.ledger li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.6rem 1.6rem 1.8rem 0;
  border-bottom: 1px solid var(--rule-soft);
}
.ledger li:not(:nth-child(3n)) { border-right: 1px solid var(--rule-soft); }
.ledger li:not(:nth-child(3n + 1)) { padding-left: 1.6rem; }
.ledger-num { font-family: var(--font-mono); font-size: 0.72rem; color: var(--pen-ink); padding-top: 0.3rem; }
.ledger h3 { font-family: var(--font-display); font-weight: 560; font-size: 1.2rem; margin-bottom: 0.35rem; }
.ledger p { font-size: 1rem; color: var(--ink-soft); }

/* II · voice */
.voice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.1fr;
  gap: 2.2rem;
  align-items: start;
}
.index-card {
  position: relative;
  padding: 1.9rem 1.6rem 1.2rem;
  background:
    linear-gradient(var(--pen) 0 0) 0 3.35rem / 100% 1.5px no-repeat,
    repeating-linear-gradient(to bottom, transparent 0 calc(1.9rem - 1px), color-mix(in srgb, var(--pen) 22%, transparent) calc(1.9rem - 1px) 1.9rem) 0 3.4rem / 100% calc(100% - 3.4rem) no-repeat,
    var(--sheet);
  border: 1px solid var(--rule-soft);
  box-shadow: var(--lift);
  border-radius: var(--radius-slip);
}
.index-card:nth-child(2) { rotate: 1deg; margin-top: 2.4rem; }
.index-card .stamp { position: absolute; top: -1rem; right: 1.2rem; }
.index-card figcaption { display: block; height: 1.9rem; }
.index-card blockquote {
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.9rem;
  color: var(--ink);
  margin-top: 0.5rem;
}
.index-card .why { line-height: 1.9rem; margin-top: 0.3rem; }
.card-actions { display: flex; gap: 1.4rem; text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.68rem; line-height: 1.9rem; margin-top: 0.4rem; }
.card-actions span:first-child { font-weight: 700; }
[data-stamp-on-reveal] .stamp { opacity: 0; transform: rotate(-5deg) scale(1.8); }
[data-stamp-on-reveal].in .stamp { animation: stamp 0.42s var(--ease-desk) 0.35s forwards; }
@keyframes stamp {
  0% { opacity: 0; transform: rotate(-12deg) scale(1.8); }
  70% { opacity: 0.95; transform: rotate(-4deg) scale(0.94); }
  100% { opacity: 0.86; transform: rotate(-5deg) scale(1); }
}
.voice-explainer { display: grid; gap: 0.9rem; padding-top: 0.5rem; }
.voice-explainer p { color: var(--ink-soft); font-size: 1.05rem; }
.voice-explainer strong { color: var(--ink); }

/* III · rewrites */
.rewrite-stage {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.rewrite-sheet { padding: 1.8rem 2.2rem 1.3rem; }
.rewrite-sheet .manuscript { min-height: 8.2em; transition: border-color 0.6s var(--ease-desk); }
.directive {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--pen);
  background: var(--pen-soft);
  padding: 0.05em 0.3em;
  border-radius: var(--radius-slip);
  white-space: nowrap;
}
/* streaming preview is pencil; on settle the pen fades into your ink (the app's rewrite settle) */
.pencil { color: var(--ink-ghost); font-style: italic; }
.fresh { color: var(--pen); font-style: italic; }
.settled { color: var(--ink); font-style: normal; transition: color 1.2s var(--ease-desk); }
.versions { display: inline-flex; gap: 0.3rem; }
.versions .v {
  padding: 0.25em 0.6em;
  border: 1px solid var(--rule);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  cursor: default;
}
.versions .v.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.versions .v[data-ready] { cursor: pointer; }
.versions .v[data-hidden] { display: none; }

.rewrite-notes { display: grid; gap: 2rem; }
.mode-switch { display: grid; gap: 0.7rem; }
.seg { display: inline-flex; border: 1px solid var(--ink); width: max-content; }
.seg button {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.6em 1.1em;
  transition: background 0.12s, color 0.12s;
}
.seg button + button { border-left: 1px solid var(--ink); }
.seg button.on { background: var(--ink); color: var(--paper); }
.seg button:not(.on):hover { background: var(--pen-soft); }
.promise-list { display: grid; gap: 0.9rem; }
.promise-list li { display: grid; grid-template-columns: 1.4rem 1fr; font-size: 1.02rem; color: var(--ink-soft); }
.tick { color: var(--moss); font-family: var(--font-mono); }

/* IV · bible */
.bible { position: relative; }
.bible-tabs { display: flex; gap: 0.25rem; flex-wrap: wrap; padding-left: 1rem; }
.bible-tabs button {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  background: color-mix(in srgb, var(--sheet) 55%, var(--desk));
  border: 1px solid var(--rule-soft);
  border-bottom: 0;
  padding: 0.7rem 1.5rem 0.6rem 1.1rem;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 100%, 0 100%);
  border-radius: var(--radius-sheet) var(--radius-sheet) 0 0;
  transform: translateY(4px);
  transition: transform 0.2s var(--ease-desk), color 0.12s, background 0.12s;
}
.bible-tabs button:hover { transform: translateY(0); color: var(--ink); }
.bible-tabs button[aria-selected="true"] { background: var(--sheet); color: var(--ink); transform: translateY(1px); z-index: 1; }
.bible-sheet { padding: 2rem 2.2rem; min-height: 17rem; max-width: 52rem; }
.bible-panel[hidden] { display: none; }
.bible-panel { display: grid; gap: 1.8rem; animation: rise 0.4s var(--ease-desk); }
.entry .display-sm { margin-bottom: 0.7rem; }
.entry .display-sm .mono { font-size: 0.8rem; }
.fact-rows li {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 1.02rem;
}
.fact-rows .src { flex-shrink: 0; color: var(--pen-ink); }
.bible-note { position: absolute; left: calc(52rem + 3rem); top: 9rem; max-width: 11rem; rotate: -5deg; }
@media (max-width: 1250px) { .bible-note { position: static; max-width: none; margin-top: 1.6rem; text-align: right; rotate: -2deg; } }

/* V · chat */
.chat-stage { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.chat-drawer { padding: 1.4rem 1.6rem; }
.editors { display: inline-flex; gap: 0.8rem; font-size: 0.72rem; }
.editors .on { color: var(--pen-ink); border-bottom: 1.5px solid var(--pen); }
.chat-log { display: grid; gap: 0.9rem; padding: 0.4rem 0 1.2rem; }
.bubble { max-width: 88%; padding: 0.75rem 1rem; font-size: 1.02rem; line-height: 1.5; border-radius: var(--radius-slip); }
.bubble.you { justify-self: end; background: var(--paper-deep); color: var(--ink); }
.bubble.desk { background: var(--pen-soft); color: var(--ink); border-left: 2px solid var(--pen); }
.chat-drawer.live .bubble { opacity: 0; transform: translateY(8px); }
.chat-drawer.live .bubble.on { opacity: 1; transform: none; transition: opacity 0.45s var(--ease-desk), transform 0.45s var(--ease-desk); }
.chat-input { border: 1px solid var(--rule); padding: 0.8rem 1rem; border-radius: var(--radius-slip); color: var(--ink-ghost); }
.chat-points { display: grid; gap: 2rem; padding-top: 0.6rem; }
.chat-points p { color: var(--ink-soft); font-size: 1.04rem; margin-top: 0.4rem; }

/* ------------------------------------------------------------------------------ creed */
.creed { padding: clamp(4rem, 8vw, 7rem) var(--gutter); }
.creed-sheet {
  max-width: 50rem;
  margin: 0 auto;
  padding: clamp(2.4rem, 5vw, 4rem) clamp(1.8rem, 5vw, 4.2rem);
  rotate: -0.5deg;
}
.creed-stamp { position: absolute; top: -1.1rem; right: 2rem; }
.creed-sheet .display { margin-bottom: 2rem; font-size: clamp(1.9rem, 3.6vw, 2.8rem); }
.creed-list { display: grid; gap: 1.1rem; }
.creed-list li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  font-size: 1.15rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--rule-soft);
}
.creed-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.numeral { font-family: var(--font-display); font-size: 1.2rem; }

/* ------------------------------------------------------------------------------ cta + footer */
.cta {
  text-align: center;
  padding: clamp(4rem, 8vw, 7rem) var(--gutter) clamp(6rem, 11vw, 10rem);
  display: grid;
  justify-items: center;
  gap: 2rem;
}
.cta .display { max-width: 14em; }
.cta-mark { width: 84px; height: auto; }
.site-foot {
  background: var(--paper);
  border-top: 1px solid var(--rule);
  padding: clamp(3.5rem, 6vw, 5rem) var(--gutter) clamp(2.5rem, 4vw, 3.5rem);
}
.foot-grid {
  max-width: calc(var(--measure) - 2 * var(--gutter));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: 2.5rem;
}
.foot-brand { display: grid; gap: 1rem; align-content: start; }
.foot-line { font-size: 1.02rem; color: var(--ink-soft); max-width: 20em; }
.foot-col { display: grid; gap: 0.7rem; align-content: start; }
.foot-col .eyebrow { margin-bottom: 0.3rem; }
.foot-col a {
  font-size: 1rem;
  color: var(--ink-soft);
  text-decoration: none;
  width: max-content;
  transition: color 0.12s;
}
.foot-col a:hover { color: var(--pen); }
.foot-base {
  max-width: calc(var(--measure) - 2 * var(--gutter));
  margin: clamp(2.5rem, 5vw, 4rem) auto 0;
  padding-top: 1.4rem;
  border-top: 1px solid var(--rule-soft);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ------------------------------------------------------------------------------ pricing */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.masthead-nav a[aria-current="page"] { color: var(--pen); }

.pricing-head {
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) var(--gutter) clamp(2.5rem, 4vw, 3.5rem);
}
.pricing-head .eyebrow { margin-bottom: 1.4rem; }
.pricing-title { font-size: clamp(2.3rem, 4.6vw, 4rem); max-width: 15em; margin-bottom: 1.6rem; }

.plans {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1rem var(--gutter) clamp(4.5rem, 8vw, 7rem);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.6rem;
  align-items: stretch;
}
.plan {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 1.4rem;
  padding: 1.8rem 1.6rem 1.6rem;
}
.plan header { display: grid; gap: 0.5rem; padding-bottom: 1.2rem; border-bottom: 1px solid var(--rule-soft); }
.plan .stamp { position: absolute; top: -0.8rem; right: 1.1rem; }
.plan-name {
  font-family: var(--font-display);
  font-variation-settings: "SOFT" 40, "WONK" 0;
  font-size: 1.7rem;
  font-weight: 560;
  letter-spacing: -0.015em;
  line-height: 1.1;
}
.plan-price { display: flex; align-items: baseline; gap: 0.4rem; }
.plan-price .amount {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 480;
  letter-spacing: -0.03em;
  line-height: 1;
}
.plan-allowance strong { color: var(--ink); font-weight: 700; }
.plan-for { color: var(--ink-soft); font-size: 1.02rem; }
.plan-cta { justify-content: center; }
/* Desk is the free sheet on the desk itself: flat, no lift. */
.plan-desk { background: transparent; box-shadow: none; border: 1px dashed var(--rule); }
/* Author is set a little forward: the pen rule on top, the page lifted a touch higher. */
.plan-lead { border-top: 3px solid var(--pen); transform: translateY(-0.6rem); }
.plan-lead .plan-name { color: var(--pen); font-style: italic; font-variation-settings: "SOFT" 70, "WONK" 1; }

.grid-section, .questions {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(4.5rem, 8vw, 7rem);
}
.feature-grid-wrap { overflow-x: auto; padding: 0.4rem 1.6rem 1.2rem; }
.feature-grid {
  width: 100%;
  min-width: 46rem;
  border-collapse: collapse;
  font-size: 1rem;
}
.feature-grid thead th {
  background: var(--sheet);
  font-family: var(--font-display);
  font-weight: 560;
  font-size: 1.2rem;
  text-align: center;
  padding: 1.2rem 0.8rem 1rem;
  border-bottom: 1.5px solid var(--ink);
}
.feature-grid thead th .mono { display: block; margin-top: 0.2rem; }
.feature-grid thead th.lead { color: var(--pen); font-style: italic; }
.feature-grid tbody th[scope="row"] {
  text-align: left;
  font-weight: 400;
  color: var(--ink);
  padding: 0.8rem 1rem 0.8rem 0;
  width: 38%;
}
.feature-grid td {
  text-align: center;
  padding: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink);
}
.feature-grid tbody tr:not(.group) { border-bottom: 1px solid var(--rule-soft); }
.feature-grid tbody tr:not(.group):hover { background: var(--paper-deep); }
.feature-grid td.no { color: var(--ink-ghost); }
.feature-grid .yes { font-size: 1.1rem; color: var(--moss); }
.feature-grid td.lead, .feature-grid th.lead { background: var(--pen-soft); }
.feature-grid tbody tr:not(.group):hover td.lead { background: color-mix(in srgb, var(--pen-soft) 60%, var(--paper-deep)); }
.feature-grid .group th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--pen-ink);
  padding: 2rem 0 0.6rem;
  border-bottom: 1px solid var(--rule);
}
.feature-grid tbody:first-of-type .group th { padding-top: 1.2rem; }
.feature-grid tfoot td { padding-top: 1.6rem; }
.feature-grid tfoot .btn, .feature-grid tfoot .btn-ghost { width: 100%; justify-content: center; padding-inline: 0.8em; }

.qa { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.2rem 3.5rem; max-width: 62rem; }
.qa dt { font-family: var(--font-display); font-weight: 560; font-size: 1.2rem; margin-bottom: 0.4rem; }
.qa dd { color: var(--ink-soft); font-size: 1.04rem; }

/* ------------------------------------------------------------------------------ legal */
.legal-doc {
  max-width: 46rem;
  margin: clamp(2.5rem, 5vw, 4rem) auto clamp(4.5rem, 8vw, 7rem);
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1.4rem, 5vw, 3.8rem);
}
.legal-doc > .eyebrow { margin-bottom: 1rem; }
.legal-doc h1 { font-size: clamp(2.2rem, 4.4vw, 3.2rem); margin-bottom: 0.8rem; }
.legal-doc > p.mono { font-size: 0.78rem; color: var(--ink-faint); display: block; padding-bottom: 1.6rem; border-bottom: 1px solid var(--rule-soft); }
.legal-doc h2 {
  font-family: var(--font-display);
  font-variation-settings: "SOFT" 40, "WONK" 0;
  font-weight: 560;
  font-size: 1.35rem;
  margin: 2.2rem 0 0.7rem;
}
.legal-doc p, .legal-doc li { color: var(--ink-soft); font-size: 1.05rem; }
.legal-doc p + p { margin-top: 0.8rem; }
.legal-doc strong { color: var(--ink); }
.legal-doc ul { display: grid; gap: 0.6rem; }
.legal-doc li { padding-left: 1.2rem; position: relative; }
.legal-doc li::before { content: "—"; position: absolute; left: 0; color: var(--pen); }

/* ------------------------------------------------------------------------------ motion */
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.rise { opacity: 0; animation: rise 0.9s var(--ease-desk) forwards; }
.d1 { animation-delay: 0.06s; } .d2 { animation-delay: 0.14s; } .d3 { animation-delay: 0.26s; }
.d4 { animation-delay: 0.38s; } .d5 { animation-delay: 0.5s; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.8s var(--ease-desk), transform 0.8s var(--ease-desk); }
.reveal.in { opacity: 1; transform: none; }
.ledger .reveal:nth-child(3n + 2), .chat-points .reveal:nth-child(2) { transition-delay: 0.08s; }
.ledger .reveal:nth-child(3n), .chat-points .reveal:nth-child(3) { transition-delay: 0.16s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ------------------------------------------------------------------------------ responsive */
@media (max-width: 1100px) {
  .masthead-nav { display: none; }
  .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plan-lead { transform: none; }
  .voice-grid { grid-template-columns: 1fr 1fr; }
  .voice-explainer { grid-column: 1 / -1; }
  .ledger { grid-template-columns: 1fr 1fr; }
  .ledger li { padding: 1.6rem 1.4rem 1.8rem 0 !important; border-right: 0 !important; }
  .ledger li:nth-child(odd) { border-right: 1px solid var(--rule-soft) !important; }
  .ledger li:nth-child(even) { padding-left: 1.4rem !important; }
}

@media (max-width: 900px) {
  .foot-grid { grid-template-columns: 1fr 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
  .hero-copy { grid-template-columns: 1fr; }
  .hero-cta { margin-top: 2rem; }
  .spring { grid-template-columns: 1fr; row-gap: 2.4rem; }
  .spring-lines { display: none; }
  .branch:nth-child(odd) { margin-left: 0; }
  .spring-branches { grid-template-columns: 1fr 1fr; }
  .rewrite-stage, .chat-stage { grid-template-columns: 1fr; }
  .panes { grid-template-columns: 1fr; }
  .bible-note { position: static; margin-top: 1.4rem; text-align: right; }
}

@media (max-width: 600px) {
  body { font-size: 1.05rem; }
  .plans, .qa { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .masthead { gap: 1rem; }
  .masthead-actions { gap: 0.9rem; }
  .masthead-actions .link-mono, .theme-label { display: none; }
  .spring-branches, .voice-grid, .ledger { grid-template-columns: 1fr; }
  .ledger li { padding: 1.4rem 0 !important; border-right: 0 !important; }
  .index-card:nth-child(2) { margin-top: 0; }
  .spring-source, .rewrite-sheet { padding: 1.3rem 1.2rem 1rem; }
  .manuscript { font-size: 1.12rem; }
  .toolbar { gap: 0.6rem; font-size: 0.8rem; }
  .tb-seg, .tb-mono { display: none; }
  .bible-sheet { padding: 1.4rem 1.2rem; }
  .fact-rows li { flex-direction: column; gap: 0.2rem; }
}