/* Layout: a ruled ledger-pad hero, then a 12-column page where copy sits left
   and app screens sit right; screens are framed "screenshots" in the app's own warm chrome. */
:root {
  /* page */
  --paper: #F2F5F1;
  --paper-2: #E6ECE5;
  --card: #FBFCFA;
  --ink: #14201B;
  --ink-2: #4B5953;
  --rule: #CAD5CC;
  --rule-soft: #DDE5DE;
  --ledger: #1E6B4E;
  --ledger-ink: #FFFFFF;
  --ledger-soft: #D9EADF;
  --bad: #B23A26;
  --shadow: 0 1px 0 rgba(20, 32, 27, .04), 0 18px 40px -18px rgba(20, 32, 27, .28);

  /* app screens: always light, in SwanBooks' own warm chrome */
  --app-side: #3A2A21;
  --app-side-ink: #EADDCF;
  --app-side-dim: #A99381;
  --app-side-on: #57402F;
  --app-bg: #FAF7F3;
  --app-card: #FFFFFF;
  --app-ink: #2A211C;
  --app-dim: #7B6C61;
  --app-rule: #EAE2D9;
  --app-head: #F5EFE8;
  --app-accent: #8A5A3B;
  --app-in: #2F7D4F;
  --app-in-bg: #E4F2E8;
  --app-out: #B4432D;
  --app-out-bg: #FBE8E3;
  --app-warn: #A36A12;
  --app-warn-bg: #FBF0DA;
  --app-bar: #E9E4DE;

  --f-display: "Schibsted Grotesk", "Helvetica Neue", Arial, sans-serif;
  --f-body: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --s-1: clamp(2.3rem, 1.5rem + 3vw, 3.85rem);
  --s-2: clamp(1.8rem, 1.3rem + 2vw, 2.7rem);
  --s-3: 1.3rem;
  --s-body: 1.0625rem;
  --s-small: .875rem;
  --s-micro: .75rem;

  --wrap: 1180px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0E1512;
    --paper-2: #141E1A;
    --card: #17221D;
    --ink: #E5ECE7;
    --ink-2: #9EAFA7;
    --rule: #2B3833;
    --rule-soft: #212D28;
    --ledger: #5DBE93;
    --ledger-ink: #0B1511;
    --ledger-soft: #18352A;
    --bad: #F08B72;
    --shadow: 0 1px 0 rgba(0, 0, 0, .3), 0 22px 50px -20px rgba(0, 0, 0, .8);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0E1512;
  --paper-2: #141E1A;
  --card: #17221D;
  --ink: #E5ECE7;
  --ink-2: #9EAFA7;
  --rule: #2B3833;
  --rule-soft: #212D28;
  --ledger: #5DBE93;
  --ledger-ink: #0B1511;
  --ledger-soft: #18352A;
  --bad: #F08B72;
  --shadow: 0 1px 0 rgba(0, 0, 0, .3), 0 22px 50px -20px rgba(0, 0, 0, .8);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: var(--s-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  z-index: 60;
  background: var(--paper);
}
img, svg { max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--f-display); line-height: 1.08; margin: 0; text-wrap: balance; letter-spacing: -.02em; }
h1 { font-size: var(--s-1); font-weight: 800; }
h2 { font-size: var(--s-2); font-weight: 800; }
h3 { font-size: var(--s-3); font-weight: 700; letter-spacing: -.01em; line-height: 1.2; }
p { margin: 0; }
.m { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.dim { color: var(--ink-2); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--ledger); outline-offset: 3px; border-radius: 4px; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

.eyebrow {
  font-family: var(--f-mono);
  font-size: var(--s-micro);
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--ledger);
  font-weight: 500;
}

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 0 22px;
  border-radius: 8px;
  font: 600 1rem/1 var(--f-body);
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background-color .15s ease, border-color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-solid { background: var(--ledger); color: var(--ledger-ink); }
.btn-solid:hover { filter: brightness(1.08); }
.btn-ghost { border-color: var(--rule); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink-2); }
.btn-sm { min-height: 38px; padding: 0 16px; font-size: .9rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* top bar */
.topbar {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--rule-soft);
}
.topbar-in { display: flex; align-items: center; gap: 24px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 800 1.2rem/1 var(--f-display); letter-spacing: -.02em; color: var(--ink); }
.brand .mark { width: 28px; height: 28px; color: var(--ledger); flex: none; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { text-decoration: none; color: var(--ink-2); font-size: .95rem; font-weight: 500; }
.nav a:hover { color: var(--ink); }
.menu-btn { display: none; }

@media (max-width: 880px) {
  .topbar-in { gap: 12px; }
  .topbar-in > .btn { margin-left: auto; }
  .menu-btn {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 6px;
    width: 44px; height: 44px; padding: 0 11px;
    background: transparent; border: 1px solid var(--rule); border-radius: 8px; cursor: pointer;
  }
  .menu-btn span { display: block; height: 2px; background: var(--ink); border-radius: 2px; }
  .nav {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--rule);
    padding: 8px max(20px, env(safe-area-inset-right, 0px)) 16px max(20px, env(safe-area-inset-left, 0px));
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; border-bottom: 1px solid var(--rule-soft); font-size: 1.05rem; }
}

/* hero: ledger pad */
.hero {
  position: relative;
  padding-block: clamp(48px, 7vw, 96px) clamp(56px, 7vw, 100px);
  background:
    linear-gradient(90deg, transparent calc(50% - 600px), color-mix(in srgb, var(--ledger) 35%, transparent) calc(50% - 600px), color-mix(in srgb, var(--ledger) 35%, transparent) calc(50% - 599px), transparent calc(50% - 599px)),
    repeating-linear-gradient(180deg, transparent 0 31px, var(--rule-soft) 31px 32px);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 11fr) minmax(0, 13fr); gap: clamp(32px, 4vw, 56px); align-items: center; }
.hero-copy { display: flex; flex-direction: column; gap: 22px; min-width: 0; }
.lede { font-size: 1.15rem; color: var(--ink-2); max-width: 36em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-facts { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 6px; font-size: var(--s-small); color: var(--ink-2); }
.hero-facts li { padding-left: 18px; position: relative; }
.hero-facts li::before { content: ""; position: absolute; left: 0; top: .62em; width: 8px; height: 2px; background: var(--ledger); }
.hero-facts strong { color: var(--ink); font-weight: 600; }
.hero-visual { margin: 0; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
figcaption { font-size: var(--s-micro); color: var(--ink-2); font-family: var(--f-mono); }

@media (max-width: 1260px) {
  .hero { background: repeating-linear-gradient(180deg, transparent 0 31px, var(--rule-soft) 31px 32px); }
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero { background: repeating-linear-gradient(180deg, transparent 0 31px, var(--rule-soft) 31px 32px); }
}

/* ===== app screen frame ===== */
.screen {
  background: var(--app-bg);
  color: var(--app-ink);
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--app-side) 22%, transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
  font-family: var(--f-body);
  font-size: 13px;
  line-height: 1.45;
}
.screen-bar { background: var(--app-bar); padding: 8px 12px; display: flex; align-items: center; border-bottom: 1px solid var(--app-rule); }
.url { font-family: var(--f-mono); font-size: 11px; color: var(--app-dim); background: var(--app-card); border-radius: 6px; padding: 3px 10px; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.app { display: grid; grid-template-columns: 148px minmax(0, 1fr); min-height: 360px; }
.app-side { background: var(--app-side); color: var(--app-side-dim); display: flex; flex-direction: column; gap: 2px; padding: 14px 10px; font-size: 12.5px; }
.app-logo { display: flex; align-items: center; gap: 7px; color: var(--app-side-ink); font: 700 14px/1 var(--f-display); margin: 0 4px 14px; }
.app-logo svg { width: 18px; height: 18px; }
.app-side span { padding: 6px 8px; border-radius: 6px; }
.app-side span.on { background: var(--app-side-on); color: var(--app-side-ink); }
.app-main { padding: 16px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.app-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.app-head b { font: 700 16px/1.2 var(--f-display); }
.pill { font-size: 11px; background: var(--app-head); border: 1px solid var(--app-rule); padding: 2px 8px; border-radius: 99px; color: var(--app-dim); white-space: nowrap; }
.app-alert { background: var(--app-warn-bg); color: var(--app-ink); border-left: 3px solid var(--app-warn); padding: 8px 10px; border-radius: 6px; font-size: 12px; }
.app-alert u { color: var(--app-accent); font-weight: 600; margin-left: 4px; text-underline-offset: 2px; }
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.metrics > div { background: var(--app-card); border: 1px solid var(--app-rule); border-radius: 8px; padding: 9px 10px; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.metrics small { font-size: 10.5px; color: var(--app-dim); text-transform: uppercase; letter-spacing: .05em; }
.metrics b { font: 600 16px/1.2 var(--f-mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.metrics em { font-style: normal; font-size: 11px; }
.metrics .dim, .screen .dim { color: var(--app-dim); }
.warn-t { color: var(--app-warn); }

.feed { background: var(--app-card); border: 1px solid var(--app-rule); border-radius: 8px; overflow: hidden; }
.feed-head { display: flex; justify-content: space-between; padding: 8px 10px; font-weight: 600; font-size: 12px; background: var(--app-head); border-bottom: 1px solid var(--app-rule); }
.live-dot { display: inline-flex; align-items: center; gap: 6px; color: var(--app-in); font-size: 11px; }
.live-dot::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--app-in); animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .3; } }
.feed-list { list-style: none; margin: 0; padding: 0; }
.feed-list li {
  display: grid; grid-template-columns: 76px minmax(0, 1fr) minmax(0, 1.3fr) 68px; gap: 8px; align-items: center;
  padding: 7px 10px; border-bottom: 1px solid var(--app-rule); font-size: 12px;
}
.feed-list li:last-child { border-bottom: 0; }
.feed-list li.enter { animation: enter .5s ease-out; }
@keyframes enter { from { background: var(--app-in-bg); } to { background: transparent; } }
.docno { font-family: var(--f-mono); font-size: 11px; color: var(--app-dim); }
.who, .what { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qty { font-family: var(--f-mono); font-variant-numeric: tabular-nums; text-align: right; font-weight: 500; }
.qty.out { color: var(--app-out); }
.qty.in { color: var(--app-in); }

@media (prefers-reduced-motion: reduce) {
  .live-dot::before, .feed-list li.enter { animation: none; }
}

@media (max-width: 620px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .app-side { display: none; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feed-list li { grid-template-columns: minmax(0, 1fr) 62px; }
  .feed-list .docno, .feed-list .who { display: none; }
}

/* generic pane screens */
.pane { padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.pane-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 4px 12px; }
.pane-head b { font: 700 15px/1.3 var(--f-display); }
.pane-head .dim { font-size: 11.5px; }
.pane-foot { display: flex; justify-content: flex-end; align-items: center; gap: 8px; flex-wrap: wrap; }
.pane-foot.spread { justify-content: space-between; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-size: 11.5px; padding: 3px 10px; border-radius: 99px; border: 1px solid var(--app-rule); background: var(--app-card); color: var(--app-dim); }
.chip.on { background: var(--app-side); color: var(--app-side-ink); border-color: var(--app-side); }
.mini-btn { display: inline-block; font-size: 11.5px; font-weight: 600; padding: 5px 10px; border-radius: 6px; background: var(--app-accent); color: #FFFFFF; white-space: nowrap; }
.mini-btn.ghost { background: var(--app-card); color: var(--app-ink); border: 1px solid var(--app-rule); }

.t-scroll { overflow-x: auto; border: 1px solid var(--app-rule); border-radius: 8px; background: var(--app-card); }
.t { width: 100%; border-collapse: collapse; font-size: 12px; }
.t th { text-align: left; font-weight: 600; font-size: 10.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--app-dim); background: var(--app-head); padding: 7px 10px; white-space: nowrap; }
.t th small { text-transform: none; letter-spacing: 0; font-weight: 500; color: var(--app-accent); }
.t td { padding: 7px 10px; border-top: 1px solid var(--app-rule); white-space: nowrap; }
.t .r { text-align: right; }
.t tfoot td { font-weight: 600; background: var(--app-head); }
.t .late { color: var(--app-out); font-weight: 500; }
.st { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 99px; }
.st.ok { background: var(--app-in-bg); color: var(--app-in); }
.st.warn { background: var(--app-warn-bg); color: var(--app-warn); }
.st.bad { background: var(--app-out-bg); color: var(--app-out); }

.xco td:not(:first-child) { text-align: center; }
.xco th:not(:first-child) { text-align: center; }
.xco tr.hl td { background: var(--app-warn-bg); }
.near { display: block; font-size: 10.5px; color: var(--app-warn); white-space: normal; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; vertical-align: middle; }
.dot.y { background: var(--app-in); }
.dot.w { background: var(--app-warn); }
.dot.n { background: transparent; border: 1.5px solid var(--app-rule); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 11px; color: var(--app-dim); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend .dot { width: 8px; height: 8px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; }
.out-sw { background: var(--app-accent); }
.in-sw { background: var(--app-in); }

.ledger { list-style: none; margin: 0; padding: 0; background: var(--app-card); border: 1px solid var(--app-rule); border-radius: 8px; }
.ledger li { display: grid; grid-template-columns: 92px minmax(0, 1fr) 54px 56px; gap: 10px; padding: 9px 12px; border-top: 1px solid var(--app-rule); align-items: baseline; }
.ledger li:first-child { border-top: 0; }
.ledger time { font-family: var(--f-mono); font-size: 11px; color: var(--app-dim); }
.ledger .src { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ledger .src b { font-weight: 600; margin-right: 4px; }
.ledger .bal { font-family: var(--f-mono); text-align: right; color: var(--app-dim); }
@media (max-width: 520px) {
  .ledger li { grid-template-columns: minmax(0, 1fr) 50px 52px; }
  .ledger time { grid-column: 1 / -1; }
}

.doc-pane { background: var(--app-head); }
.doc { background: var(--app-card); border: 1px solid var(--app-rule); border-radius: 6px; padding: 18px; display: flex; flex-direction: column; gap: 14px; font-family: var(--f-body); color: var(--app-ink); font-size: 12.5px; }
.doc-top { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.doc-top > div { display: flex; flex-direction: column; }
.doc-co { font: 700 15px/1.2 var(--f-display); }
.doc-no { text-align: right; }
.doc-no small, .doc-to small { font-size: 10px; letter-spacing: .12em; color: var(--app-dim); font-family: var(--f-mono); }
.doc-no b { font: 600 15px/1.3 var(--f-mono); }
.doc-to { display: flex; flex-direction: column; font-weight: 600; }
.doc-t { border: 1px solid var(--app-rule); }

.bars { width: 100%; height: auto; display: block; background: var(--app-card); border: 1px solid var(--app-rule); border-radius: 8px; }
.bars .grid line { stroke: var(--app-rule); stroke-width: 1; }
.bars text { font: 10px var(--f-mono); fill: var(--app-dim); }
.bars .ylab text { text-anchor: end; }
.bars .xlab text { text-anchor: middle; }
.bars .b-out { fill: var(--app-accent); }
.bars .b-in { fill: var(--app-in); }
.gap { display: block; width: 110px; height: 6px; background: var(--app-rule); border-radius: 3px; overflow: hidden; }
.gap i { display: block; height: 100%; width: 0; background: var(--app-in); }
.gap.low i { background: var(--app-out); }

.trend .spark { width: 130px; }
.trend .spark svg { display: block; width: 120px; height: 26px; }
.spark path.l { fill: none; stroke: var(--app-accent); stroke-width: 1.6; }
.spark path.a { fill: var(--app-accent); opacity: .12; }
.spark circle { fill: var(--app-accent); }

/* ===== sections ===== */
.section { padding-block: clamp(64px, 8vw, 112px); }
.section-alt { background: var(--paper-2); border-block: 1px solid var(--rule-soft); }
.section-head { display: flex; flex-direction: column; gap: 14px; max-width: 46rem; margin-bottom: clamp(36px, 5vw, 56px); }
.section-head .sub { color: var(--ink-2); font-size: 1.1rem; max-width: 40em; }

/* proof */
.proof { background: var(--ink); color: var(--paper); }
.proof-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: center; padding-block: 40px; }
.proof-lead { font-size: 1.08rem; color: color-mix(in srgb, var(--paper) 82%, var(--ink)); }
.proof-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin: 0; }
.proof-stats div { display: flex; flex-direction: column-reverse; justify-content: flex-end; gap: 6px; padding: 4px 16px; min-width: 0; border-left: 1px solid color-mix(in srgb, var(--paper) 22%, transparent); }
.proof-stats dt { font-size: var(--s-micro); text-transform: uppercase; letter-spacing: .1em; color: color-mix(in srgb, var(--paper) 62%, var(--ink)); font-family: var(--f-mono); }
.proof-stats dd { margin: 0; font: 800 clamp(1.5rem, 1.1rem + 1.1vw, 2rem)/1 var(--f-display); letter-spacing: -.02em; }
@media (max-width: 900px) {
  .proof-grid { grid-template-columns: minmax(0, 1fr); }
  .proof-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 22px; }
  .proof-stats div:nth-child(odd) { border-left: 0; padding-left: 0; }
}

/* modes */
.modes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-bottom: 36px; }
.mode { background: var(--card); border: 1px solid var(--rule); border-radius: 14px; padding: clamp(22px, 3vw, 32px); display: flex; flex-direction: column; gap: 14px; }
.mode > p { color: var(--ink-2); }
.mode-tag { align-self: flex-start; font: 500 var(--s-micro)/1 var(--f-mono); text-transform: uppercase; letter-spacing: .1em; padding: 6px 10px; border-radius: 6px; }
.tag-std { background: var(--ink); color: var(--paper); }
.tag-qbo { background: var(--ledger); color: var(--ledger-ink); }
@media (max-width: 800px) { .modes { grid-template-columns: minmax(0, 1fr); } }

.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.ticks li { position: relative; padding-left: 26px; }
.ticks li::before {
  content: ""; position: absolute; left: 2px; top: .42em;
  width: 12px; height: 7px; border-left: 2px solid var(--ledger); border-bottom: 2px solid var(--ledger);
  transform: rotate(-45deg);
}

.table-scroll { overflow-x: auto; border: 1px solid var(--rule); border-radius: 14px; background: var(--card); }
.compare { width: 100%; border-collapse: collapse; min-width: 620px; font-size: .97rem; }
.compare th, .compare td { text-align: left; padding: 14px 18px; border-top: 1px solid var(--rule-soft); vertical-align: top; }
.compare thead th { border-top: 0; font: 500 var(--s-micro)/1.3 var(--f-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-2); background: var(--paper-2); }
.compare tbody th { font-weight: 600; width: 36%; }
.compare td { color: var(--ink-2); }
.compare td.y { color: var(--ink); }
.compare td.y::before { content: "✓ "; color: var(--ledger); font-weight: 700; }
.compare td.n { color: var(--ink-2); font-style: italic; }

/* feature tour */
.feature {
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(28px, 4vw, 56px); align-items: center;
  padding-block: clamp(32px, 4vw, 52px);
  border-top: 1px solid var(--rule);
}
.feature:first-of-type { border-top: 0; padding-top: 0; }
.feature-copy { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.feature-copy > p { color: var(--ink-2); }
.feature-shot { margin: 0; min-width: 0; }
.mode-chip { align-self: flex-start; font: 500 11px/1 var(--f-mono); text-transform: uppercase; letter-spacing: .1em; padding: 5px 9px; border-radius: 5px; border: 1px solid var(--rule); color: var(--ink-2); background: var(--card); }
.mode-chip.qbo { background: var(--ledger); color: var(--ledger-ink); border-color: var(--ledger); }
.mode-chip.std { background: var(--ink); color: var(--paper); border-color: var(--ink); }
@media (max-width: 900px) {
  .feature { grid-template-columns: minmax(0, 1fr); }
}

/* flow */
.flow { list-style: none; margin: 0 0 40px; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; counter-reset: none; }
.flow li { position: relative; padding: 24px 22px 0 0; border-top: 2px solid var(--ledger); display: flex; flex-direction: column; gap: 10px; }
.flow li p { color: var(--ink-2); font-size: .98rem; }
.flow .step { position: absolute; top: -15px; left: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--ledger); color: var(--ledger-ink); display: grid; place-items: center; font: 600 .85rem/1 var(--f-mono); }
.flow h3 { font-size: 1.12rem; }
@media (max-width: 900px) {
  .flow { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .flow li { border-top: 0; border-left: 2px solid var(--ledger); padding: 0 0 28px 30px; }
  .flow li:last-child { padding-bottom: 0; }
  .flow .step { top: 0; left: -15px; }
}
.flow-notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.flow-notes > div { padding: 22px; border: 1px solid var(--rule); border-radius: 12px; background: var(--card); display: flex; flex-direction: column; gap: 8px; }
.flow-notes h3 { font-size: 1.05rem; }
.flow-notes p { color: var(--ink-2); font-size: .97rem; }
@media (max-width: 900px) { .flow-notes { grid-template-columns: minmax(0, 1fr); } }

/* details */
.details { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.detail { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 22px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.detail > p { color: var(--ink-2); font-size: .97rem; }
.detail h3 { font-size: 1.08rem; }
.detail-wide { grid-column: span 2; }
@media (max-width: 900px) {
  .details { grid-template-columns: minmax(0, 1fr); }
  .detail-wide { grid-column: auto; }
}
kbd { font-family: var(--f-mono); font-size: .85em; border: 1px solid var(--rule); border-bottom-width: 2px; border-radius: 4px; padding: 0 5px; background: var(--paper); }
.palette { background: var(--app-card); color: var(--app-ink); border: 1px solid var(--app-rule); border-radius: 10px; box-shadow: var(--shadow); overflow: hidden; font-size: 13px; }
.palette .dim { color: var(--app-dim); }
.pal-in { display: flex; justify-content: space-between; gap: 10px; padding: 11px 14px; border-bottom: 1px solid var(--app-rule); font-size: 11.5px; }
.pal-q { font-size: 14px; color: var(--app-ink); }
.pal-q::after { content: ""; display: inline-block; width: 1.5px; height: 1em; background: var(--app-accent); vertical-align: -2px; margin-left: 2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .pal-q::after { animation: none; } }
.pal-r { display: grid; grid-template-columns: 70px auto minmax(0, 1fr) auto; gap: 10px; padding: 9px 14px; border-top: 1px solid var(--app-rule); align-items: baseline; }
.pal-r:nth-child(2) { background: var(--app-head); }
.pal-r span:nth-child(3) { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--app-dim); }
.pal-k { font: 500 10px/1 var(--f-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--app-accent); }
@media (max-width: 520px) {
  .pal-r { grid-template-columns: auto minmax(0, 1fr); }
  .pal-r .pal-k, .pal-r .m { display: none; }
}
.note { background: var(--paper-2); border: 1px solid var(--rule); border-radius: 10px; padding: 10px 12px; display: flex; flex-direction: column; gap: 3px; font-size: .92rem; }
.note small { font-family: var(--f-mono); font-size: 11px; color: var(--ink-2); }
.sched { list-style: none; margin: 0; padding: 0; display: grid; }
.sched li { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 10px; padding: 7px 0; border-top: 1px solid var(--rule-soft); font-size: .95rem; }
.sched li:first-child { border-top: 0; }
.sched .m { font-size: .8rem; color: var(--ledger); padding-top: 2px; }

/* security */
.sec-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.sec-grid .section-head { margin-bottom: 0; }
.sec-list { list-style: none; margin: 0; padding: 0; display: grid; }
.sec-list li { padding: 16px 0; border-top: 1px solid var(--rule); color: var(--ink-2); }
.sec-list li:first-child { border-top: 0; padding-top: 0; }
.sec-list b { color: var(--ink); font-weight: 600; }
@media (max-width: 900px) { .sec-grid { grid-template-columns: minmax(0, 1fr); } }

/* who */
.fit-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 32px; align-items: start; }
.fit { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; }
.fit li { padding: 14px 0 14px 26px; border-top: 1px solid var(--rule); position: relative; }
.fit li::before { content: "→"; position: absolute; left: 0; color: var(--ledger); font-family: var(--f-mono); }
@media (max-width: 900px) {
  .fit-grid { grid-template-columns: minmax(0, 1fr); }
  .fit { grid-template-columns: minmax(0, 1fr); }
}

/* faq */
.faq-wrap { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 32px; align-items: start; }
.faq details { border-top: 1px solid var(--rule); }
.faq details:last-child { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 36px 18px 0; position: relative; font: 600 1.08rem/1.35 var(--f-body); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font: 400 1.5rem/1 var(--f-mono); color: var(--ledger); }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 0 20px; color: var(--ink-2); max-width: 40em; }
@media (max-width: 900px) { .faq-wrap { grid-template-columns: minmax(0, 1fr); } }

/* demo */
.demo { background: var(--ledger-soft); border-top: 1px solid var(--rule); }
.demo-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.demo-copy { display: flex; flex-direction: column; gap: 16px; }
.demo-copy > p:not(.eyebrow) { color: var(--ink-2); font-size: 1.1rem; }
.form { background: var(--card); border: 1px solid var(--rule); border-radius: 14px; padding: clamp(20px, 3vw, 30px); display: flex; flex-direction: column; gap: 16px; box-shadow: var(--shadow); }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field label { font-weight: 600; font-size: .92rem; }
.opt { font-weight: 400; color: var(--ink-2); font-size: .85rem; }
.field input, .field select, .field textarea {
  font: 400 16px/1.4 var(--f-body);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 11px 12px;
  min-height: 46px;
  width: 100%;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--ledger); outline-offset: 0; border-color: var(--ledger); }
.field.invalid input, .field.invalid select { border-color: var(--bad); }
.field .err { font-size: .82rem; color: var(--bad); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { font-size: .95rem; min-height: 1.4em; }
.form-msg.ok { color: var(--ledger); font-weight: 600; }
.form-msg.bad { color: var(--bad); }
@media (max-width: 900px) { .demo-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 480px) { .field-row { grid-template-columns: minmax(0, 1fr); } }

/* footer */
.footer { border-top: 1px solid var(--rule); padding-block: 36px calc(36px + env(safe-area-inset-bottom, 0px)); }
.footer-in { display: flex; flex-direction: column; gap: 10px; font-size: var(--s-small); }

@media (max-width: 520px) {
  .doc { padding: 12px; }
  .doc-t th, .doc-t td { padding: 6px; white-space: normal; }
  .doc-t td:first-child { min-width: 7em; }
}

/* ===== multi-page additions ===== */
.nav .is-current { color: var(--ink); font-weight: 600; font-size: .95rem; position: relative; }
.nav .is-current::after { content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px; background: var(--ledger); border-radius: 2px; }
.nav .nav-try { color: var(--ledger); font-weight: 600; }
.btn.is-current { cursor: default; opacity: .55; }
span.brand { cursor: default; }
@media (max-width: 880px) {
  .nav .is-current { padding: 12px 0; border-bottom: 1px solid var(--rule-soft); font-size: 1.05rem; }
  .nav .is-current::after { left: -12px; right: auto; top: 14px; bottom: 14px; width: 3px; height: auto; }
}
.h-page { font-size: var(--s-1); font-weight: 800; }
.text-link { color: var(--ledger); font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.text-link::after { content: "→"; font-family: var(--f-mono); transition: transform .15s ease; }
.text-link:hover::after { transform: translateX(3px); }
.mode-links { display: flex; flex-wrap: wrap; gap: 12px 28px; margin-top: 24px; }

.page-hero { padding-block: clamp(48px, 6vw, 88px); border-bottom: 1px solid var(--rule); background: repeating-linear-gradient(180deg, transparent 0 31px, var(--rule-soft) 31px 32px); }
.page-hero .section-head { margin-bottom: 0; }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(28px, 4vw, 56px); align-items: center; }
.page-hero-copy { display: flex; flex-direction: column; gap: 20px; min-width: 0; }
@media (max-width: 900px) { .page-hero-grid { grid-template-columns: minmax(0, 1fr); } }

.preview-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.preview { display: flex; flex-direction: column; gap: 10px; padding: 22px; border: 1px solid var(--rule); border-radius: 12px; background: var(--card); text-decoration: none; color: var(--ink); transition: border-color .15s ease, transform .15s ease; }
.preview:hover { border-color: var(--ledger); transform: translateY(-2px); }
.preview h3 { font-size: 1.1rem; }
.preview p { color: var(--ink-2); font-size: .97rem; flex: 1; }
@media (max-width: 900px) { .preview-grid { grid-template-columns: minmax(0, 1fr); } }
@media (prefers-reduced-motion: reduce) { .preview, .text-link::after { transition: none; } .preview:hover { transform: none; } }

.cta-band { background: var(--ledger-soft); border-top: 1px solid var(--rule); }
.cta-band-in { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.cta-band-in > div:first-child { display: flex; flex-direction: column; gap: 10px; max-width: 38rem; }
.cta-band-in p { color: var(--ink-2); font-size: 1.08rem; }

.std-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.std-block { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.std-block .ticks { font-size: .97rem; }
@media (max-width: 1050px) { .std-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .std-grid { grid-template-columns: minmax(0, 1fr); } }
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(28px, 5vw, 64px); }
.split .section-head { margin-bottom: 0; }
@media (max-width: 900px) { .split { grid-template-columns: minmax(0, 1fr); } }

.conn { list-style: none; margin: 0; padding: 0; background: var(--app-card); border: 1px solid var(--app-rule); border-radius: 8px; }
.conn li { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 11px 12px; border-top: 1px solid var(--app-rule); }
.conn li:first-child { border-top: 0; }
.conn-name { display: flex; flex-direction: column; min-width: 0; }
.conn-name small { color: var(--app-dim); font-size: 11.5px; }

.who-cols { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; }
.who-cols > div { padding: 4px 22px 4px 0; display: flex; flex-direction: column; gap: 8px; }
.who-cols > div + div { padding-left: 22px; border-left: 1px solid var(--rule); }
.who-cols h3 { font-size: 1.08rem; }
.who-cols p { color: var(--ink-2); font-size: .97rem; }
@media (max-width: 900px) {
  .who-cols { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .who-cols > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); padding-top: 20px; }
}

.sec-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.sec-cards > div { padding: 22px; border: 1px solid var(--rule); border-radius: 12px; background: var(--card); display: flex; flex-direction: column; gap: 8px; }
.sec-cards h3 { font-size: 1.08rem; }
.sec-cards p { color: var(--ink-2); font-size: .97rem; }
@media (max-width: 900px) { .sec-cards { grid-template-columns: minmax(0, 1fr); } }
.compare.roles { min-width: 0; }
.compare.roles tbody th { width: 30%; }

.footer-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 6px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer-nav a { color: var(--ink-2); text-decoration: none; }
.footer-nav a:hover { color: var(--ink); }
.footer-nav .is-current { color: var(--ink); font-weight: 600; }