:root {
  --bg: #1A1A1A;
  --panel: #262626;
  --panel-hover: #2E2E2E;
  --well: #0F0F0F;
  --accent: #0ABAB5;
  --accent-hi: #5BD9D4;
  --warn: #E8B23A;
  --fg: #FFFFFF;
  --fg2: #D4D4D4;
  --muted: #A8A8A8;
  --dim: #6B6B6B;
  --line: rgba(255,255,255,0.12);
  --line-strong: rgba(255,255,255,0.16);
  --line-soft: rgba(255,255,255,0.08);
  --dotted: rgba(255,255,255,0.4);
  --ease: cubic-bezier(0.4,0,0.2,1);
  --display: 'Bebas Neue', sans-serif;
  --sans: 'DM Sans', sans-serif;
  --mono: 'DM Mono', monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: var(--sans); font-weight: 500; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hi); }
::selection { background: var(--accent); color: #000; }
button { font: inherit; }
h1, h2, h3, p { margin: 0; }

/* ---------- shell ---------- */
.shell { display: flex; min-height: 100vh; background: var(--bg); }

.sidebar { width: 248px; flex: none; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; border-right: 1px solid var(--line); background: var(--panel); }
.brand { height: 64px; display: flex; flex-direction: column; justify-content: center; gap: 3px; padding: 0 24px; border-bottom: 1px solid var(--line); color: var(--fg); }
.brand:hover { color: var(--fg); }
.brand-title { font-family: var(--display); font-size: 22px; letter-spacing: 0.04em; text-transform: uppercase; line-height: 1; }
.brand-sub { font-family: var(--mono); font-size: 9px; letter-spacing: 0.08em; color: var(--muted); }
.sidenav { flex: 1; overflow: auto; padding: 20px 12px 12px; display: flex; flex-direction: column; gap: 22px; }
.navgroup > div { display: flex; flex-direction: column; gap: 2px; }
.navhead { font-family: var(--mono); font-size: 16px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); padding: 0 12px 10px; }
.navhead-gap { padding-top: 25px; }
.navitem { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 999px; font-size: 14px; font-weight: 500; color: var(--fg); background: transparent; transition: all 120ms var(--ease); }
.navitem.app { padding: 8px 12px; }
.navitem:hover { color: var(--accent); }
.navitem.on { background: var(--fg); color: #000; }
.navitem.on:hover { color: var(--accent); }
.dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; flex: none; }
.legend { display: flex !important; flex-direction: row !important; gap: 14px !important; padding: 22px 12px 0; font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em; color: var(--dim); }
.legend span { display: flex; align-items: center; gap: 6px; }
.sidefoot { padding: 16px 24px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 10px; line-height: 1.6; color: var(--muted); letter-spacing: 0.04em; }

.mainwrap { flex: 1; min-width: 0; display: flex; flex-direction: column; background-color: var(--bg);
  background-image: linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px; background-position: -1px -1px; }

.topbar { position: sticky; top: 0; z-index: 10; height: 64px; display: flex; align-items: center; gap: 24px; padding: 0 40px; border-bottom: 1px solid var(--line); background: rgba(26,26,26,0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.menubtn { display: none; border: none; background: transparent; color: var(--fg); cursor: pointer; padding: 6px; margin-left: -6px; }
.crumb { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: var(--muted); text-transform: lowercase; flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track { display: flex; align-items: center; border: 1.5px dotted var(--dotted); border-radius: 999px; padding: 3px; gap: 2px; }
.track button { border: none; cursor: pointer; height: 28px; padding: 0 14px; border-radius: 999px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; transition: all 200ms var(--ease); background: transparent; color: var(--fg); }
.track button.on { background: var(--accent); color: #000; }

.main { flex: 1; padding: 0 40px 96px; max-width: 1240px; width: 100%; }
.footer { border-top: 1px solid var(--line); padding: 32px 40px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--muted); }

/* ---------- shared type ---------- */
.eyebrow { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); }
.eyebrow.warn { color: var(--warn); }
.eyebrow.muted { color: var(--muted); }
.label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.label.accent { color: var(--accent); }
.h-page { font-family: var(--display); font-weight: 400; font-size: clamp(64px, 8vw, 104px); line-height: 0.88; letter-spacing: 0.02em; text-transform: uppercase; }
.h-sec { font-family: var(--display); font-weight: 400; font-size: 56px; line-height: 0.94; letter-spacing: 0.02em; text-transform: uppercase; }
.h-sub { font-family: var(--display); font-weight: 400; font-size: 36px; line-height: 1; letter-spacing: 0.02em; text-transform: uppercase; }
.lede { font-size: 16px; line-height: 1.6; color: var(--fg2); }
.pagehead { display: flex; flex-direction: column; gap: 20px; max-width: 760px; }
.mono { font-family: var(--mono); }

.pill { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.1em; text-transform: uppercase; padding: 3px 7px; border-radius: 999px; border: 1px solid currentColor; display: inline-block; }
.pillrow { display: flex; }

.card { border: 1px solid var(--line-strong); border-radius: 24px; padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.card.fill { background: var(--panel); }
.card.top-accent { border-top: 3px solid var(--accent); }
.card.top-warn { border-top: 3px solid var(--warn); }
.card p { font-size: 14px; line-height: 1.6; color: var(--fg2); }
.well { font-family: var(--mono); font-size: 12px; padding: 10px 12px; background: var(--well); border: 1px solid var(--line); border-radius: 12px; }

/* 1px-gap tile grid */
.tiles { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 24px; overflow: hidden; }
.tiles > * { background: var(--panel); }
.rule-top { border-top: 1px solid var(--fg); }

.btn-primary { border: none; cursor: pointer; height: 48px; padding: 0 26px; border-radius: 999px; background: var(--accent); color: #000; font-family: var(--sans); font-size: 14px; font-weight: 500; display: inline-flex; align-items: center; gap: 10px; transition: all 200ms var(--ease); }
.btn-primary:hover { background: var(--accent-hi); color: #000; }
.btn-ghost { cursor: pointer; height: 32px; padding: 0 14px; border-radius: 999px; border: 1.5px dotted var(--dotted); background: transparent; color: var(--fg); font-family: var(--sans); font-size: 12px; display: inline-flex; align-items: center; gap: 8px; transition: all 200ms var(--ease); }
.btn-ghost:hover { background: var(--fg); color: #000; }
.btn-outline { align-self: flex-start; border: 1px solid var(--line-strong); cursor: pointer; height: 40px; padding: 0 18px; border-radius: 999px; background: transparent; color: var(--fg); font-family: var(--sans); font-size: 13px; display: inline-flex; align-items: center; gap: 8px; transition: all 200ms var(--ease); }
.btn-outline:hover { background: var(--fg); color: #000; }

/* ---------- home ---------- */
.hero { position: relative; padding: 21px 0 72px; border-bottom: 1px solid var(--line); overflow: hidden; }
.hero-inner { position: relative; max-width: 760px; display: flex; flex-direction: column; gap: 28px; }
.hero h1 { font-family: var(--display); font-weight: 400; font-size: clamp(96px, 13vw, 172px); line-height: 0.8; letter-spacing: 0.02em; text-transform: uppercase; text-wrap: balance; width: 909px; max-width: calc(100vw - 80px); }
.hero p { font-size: 18px; line-height: 1.6; color: var(--fg2); max-width: 620px; }

.why-sec { display: grid; grid-template-columns: minmax(0,5fr) minmax(0,7fr); gap: 48px; padding: 64px 0; border-bottom: 1px solid var(--line); }
.why-copy { display: flex; flex-direction: column; gap: 16px; }
.why-sec .tiles { grid-template-columns: repeat(2, minmax(0,1fr)); }
.why-tile { padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.why-tile .num { font-family: var(--display); font-size: 28px; color: var(--accent); }
.why-tile .t { font-size: 15px; font-weight: 500; }
.why-tile .d { font-size: 13px; color: var(--muted); line-height: 1.5; }

.block { padding: 64px 0; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 28px; }
.block.last { padding-bottom: 0; border-bottom: none; }
.block-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.block-head > div:first-child { display: flex; flex-direction: column; gap: 12px; }
.block-note { font-family: var(--mono); font-size: 11px; color: var(--muted); letter-spacing: 0.04em; max-width: 420px; line-height: 1.6; }

.views { border: 1px solid var(--line-strong); border-radius: 24px; overflow: hidden; background: var(--panel); }
.views-row { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.2fr) minmax(0,1.2fr); padding: 16px 20px; border-bottom: 1px solid var(--line-soft); align-items: center; gap: 16px; }
.views-row:last-child { border-bottom: none; }
.views-row.head { padding: 12px 20px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.views-row .what { font-size: 14px; color: var(--fg2); }
.views-row .v { font-family: var(--mono); font-size: 12px; display: flex; align-items: center; gap: 10px; }
.views-row .vflag { font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; padding: 2px 6px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--muted); }

.adoption { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.adopt { padding: 22px 24px; display: flex; flex-direction: column; gap: 12px; cursor: pointer; transition: background 200ms var(--ease); color: var(--fg); }
.adopt:hover { background: var(--panel-hover); color: var(--fg); }
.adopt-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.adopt-top .name { font-size: 16px; font-weight: 500; }
.adopt-top .tag { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; padding: 3px 8px; border-radius: 999px; border: 1px solid currentColor; white-space: nowrap; }
.adopt .note { font-size: 13px; line-height: 1.55; color: var(--muted); }
.adopt .conf { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--warn); }

/* ---------- app page ---------- */
.apphead { padding: 72px 0 48px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 48px; align-items: end; }
.apphead .pagehead { max-width: none; }
.apphead .lede { max-width: 680px; }
.status { gap: 12px; padding: 20px; }
.status-line { display: flex; align-items: center; gap: 10px; font-size: 14px; line-height: 1.4; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.status-upd { font-family: var(--mono); font-size: 10px; color: var(--muted); letter-spacing: 0.04em; line-height: 1.5; padding-top: 8px; border-top: 1px solid var(--line-soft); }

.settings { padding: 48px 0 0; display: flex; flex-direction: column; gap: 20px; }
.settings-head { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.keylegend { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--muted); display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.keylegend > span { display: flex; align-items: center; gap: 6px; }
.keylegend .k { padding: 2px 6px; border: 1px solid var(--line-strong); border-radius: 999px; }
.keylegend .k.warn { border-color: var(--warn); color: var(--warn); }
.step { display: grid; grid-template-columns: 48px 200px minmax(0,1fr); gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line-soft); align-items: start; }
.step .n { font-family: var(--display); font-size: 18px; color: var(--accent); line-height: 1.3; }
.step .s { font-size: 15px; font-weight: 500; line-height: 1.4; padding-top: 1px; }
.step .body { display: flex; flex-direction: column; gap: 10px; }
.step .v { font-family: var(--mono); font-size: 12.5px; line-height: 1.7; color: var(--fg2); }

.twocol { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 24px; padding: 48px 0 0; }
.stack { display: flex; flex-direction: column; gap: 24px; }
.gotchas { gap: 18px; }
.gotcha { display: grid; grid-template-columns: 20px minmax(0,1fr); gap: 12px; font-size: 14px; line-height: 1.55; color: var(--fg2); }
.gotcha .gn { font-family: var(--mono); font-size: 11px; color: var(--accent); padding-top: 3px; }
.verify-item { font-size: 14px; line-height: 1.55; color: var(--fg2); }
.sources { gap: 12px; }
.source { font-family: var(--mono); font-size: 11.5px; line-height: 1.6; color: var(--accent); word-break: break-all; }

/* ---------- pipeline ---------- */
.page { display: flex; flex-direction: column; padding: 72px 0 0; }
.gap-40 { gap: 40px; } .gap-48 { gap: 48px; } .gap-56 { gap: 56px; }

.forced { border: 1px solid var(--line-strong); border-radius: 24px; border-top: 3px solid var(--warn); padding: 24px 28px; display: grid; grid-template-columns: auto minmax(0,1fr); gap: 20px; align-items: center; }
.forced .label { color: var(--warn); letter-spacing: 0.12em; white-space: nowrap; }
.forced .why { font-size: 15px; line-height: 1.55; color: var(--fg2); }

.contract-wrap { display: flex; flex-direction: column; gap: 20px; }
.contract-wrap > div:first-child { display: flex; flex-direction: column; gap: 8px; }
.contract-sub { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; color: var(--muted); }
.contract { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.contract > div { padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.contract .val { font-family: var(--mono); font-size: 13px; color: var(--fg); line-height: 1.5; }
.contract .val.accent { color: var(--accent); word-break: break-all; }
.contract .note { font-size: 12px; color: var(--muted); line-height: 1.5; }

.sides { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 24px; align-items: start; }
.side { border: 1px solid var(--line-strong); border-radius: 24px; overflow: hidden; background: var(--panel); display: flex; flex-direction: column; }
.side-head { padding: 20px 24px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.side-head > div { display: flex; flex-direction: column; gap: 4px; }
.side-head .name { font-size: 20px; font-weight: 500; }
.side-step { display: grid; grid-template-columns: 150px minmax(0,1fr); gap: 16px; padding: 18px 24px; border-bottom: 1px solid var(--line-soft); }
.side-step:last-child { border-bottom: none; }
.side-step .s { font-size: 14px; font-weight: 500; line-height: 1.4; }
.side-step .body { display: flex; flex-direction: column; gap: 8px; }
.side-step .v { font-family: var(--mono); font-size: 12px; line-height: 1.65; color: var(--fg2); }

.delivery { border: 1px solid var(--line-strong); border-radius: 24px; border-top: 3px solid var(--accent); background: var(--panel); padding: 28px; display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.4fr); gap: 40px; align-items: start; }
.delivery > div { display: flex; flex-direction: column; gap: 12px; }
.delivery > div:last-child { gap: 10px; }
.delivery .head { font-size: 24px; font-weight: 500; line-height: 1.2; }
.delivery .body { font-size: 14px; line-height: 1.6; color: var(--fg2); }
.delivery .well { font-size: 12.5px; line-height: 1.7; color: var(--fg); padding: 14px 16px; }

.faqlinks { display: flex; flex-direction: column; gap: 16px; }
.faqlinks-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.faqlink { border: 1px solid var(--line-strong); border-radius: 24px; padding: 22px 24px; display: flex; flex-direction: column; gap: 8px; cursor: pointer; transition: border-color 200ms var(--ease); color: var(--fg); }
.faqlink:hover { border-color: var(--accent); color: var(--fg); }
.faqlink .q { font-size: 16px; font-weight: 500; line-height: 1.3; }
.faqlink .a { font-size: 13px; line-height: 1.55; color: var(--muted); }

/* ---------- crosswalk ---------- */
.xrow { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.2fr) minmax(0,1.3fr); gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line-soft); align-items: start; }
.xrow.head { padding: 12px 0; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.xrow .name { display: flex; flex-direction: column; gap: 8px; }
.xrow .name > span:first-child { font-family: var(--mono); font-size: 14px; font-weight: 500; color: var(--fg); }
.xrow .xflag { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--warn); }
.xrow .olds { display: flex; flex-wrap: wrap; gap: 6px; }
.xrow .old { font-family: var(--mono); font-size: 11px; padding: 4px 9px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--fg2); }
.xrow .use { font-size: 14px; line-height: 1.55; color: var(--fg2); }

/* ---------- configs ---------- */
.configs { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 24px; }
.config { gap: 16px; transition: border-color 200ms var(--ease); }
.config:hover { border-color: var(--accent); }
.config-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.config-top .tag { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; }
.config-top .rel { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--muted); text-align: right; }
.config .name { font-size: 22px; font-weight: 500; line-height: 1.2; }
.config .well { color: var(--accent); word-break: break-all; }
.config .use { font-size: 14px; line-height: 1.55; color: var(--fg2); flex: 1; }
.config .nodl { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--warn); }
.dlrow { display: grid; grid-template-columns: minmax(0,1.4fr) 180px minmax(0,1.4fr); gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--line-soft); align-items: center; }
.dlrow .asset { font-size: 14px; color: var(--fg); }
.dlrow .lic { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.dlrow .where { font-family: var(--mono); font-size: 12px; color: var(--accent); word-break: break-all; }

/* ---------- concepts ---------- */
.concepts { display: grid; grid-template-columns: 220px minmax(0,1fr); gap: 64px; align-items: start; }
.concept-toc { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 2px; }
.concept-toc a { display: flex; gap: 12px; padding: 8px 0; font-size: 13px; color: var(--muted); border-bottom: 1px solid var(--line-soft); }
.concept-toc a:hover { color: var(--accent); }
.concept-toc .cn { font-family: var(--mono); font-size: 10px; color: var(--accent); padding-top: 2px; }
.concept { display: grid; grid-template-columns: 80px minmax(0,1fr); gap: 24px; padding: 40px 0; border-top: 1px solid var(--line); scroll-margin-top: 64px; }
.concept .cn { font-family: var(--display); font-size: 40px; color: var(--accent); line-height: 1; }
.concept .cbody { display: flex; flex-direction: column; gap: 14px; max-width: 640px; }
.concept h3 { font-size: 24px; font-weight: 500; line-height: 1.2; }
.concept p { font-size: 16px; line-height: 1.65; color: var(--fg2); }

/* ---------- faq ---------- */
.faq { max-width: 900px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q { display: grid; grid-template-columns: 48px minmax(0,1fr) 40px; gap: 16px; padding: 24px 0; cursor: pointer; align-items: center; width: 100%; background: none; border: none; color: inherit; text-align: left; }
.faq-q .fn { font-family: var(--mono); font-size: 11px; color: var(--accent); }
.faq-q .q { font-size: 20px; font-weight: 400; line-height: 1.3; color: var(--fg); }
.faq-q .plus { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line-strong); display: flex; align-items: center; justify-content: center; transition: transform 200ms var(--ease); }
.faq-item.open .q { color: var(--accent); }
.faq-item.open .plus { transform: rotate(45deg); }
.faq-a { display: grid; grid-template-columns: 48px minmax(0,1fr) 40px; gap: 16px; padding: 0 0 28px; }
.faq-a p { font-size: 16px; line-height: 1.65; color: var(--fg2); }

/* ---------- cheat sheet ---------- */
.cheat { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 64px; padding: 72px 0 0; align-items: center; }
.cheat-copy { display: flex; flex-direction: column; gap: 24px; }
.cheat-copy .lede { max-width: 520px; }
.cheat-list { display: flex; flex-direction: column; gap: 10px; font-size: 14px; color: var(--fg2); line-height: 1.5; }
.cheat-list > div { display: flex; gap: 12px; }
.cheat-list > div::before, .verify-item::before { content: ''; flex: none; width: 12px; height: 1px; margin-top: 0.75em; background: currentColor; }
.cheat-list > div::before { background: var(--accent); }
.verify-item { display: flex; gap: 12px; }
.cheat-cta { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; padding-top: 8px; }
.cheat-ver { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: var(--muted); }
.paper-wrap { position: relative; display: flex; justify-content: center; }
.paper-wrap::before { content: ''; position: absolute; inset: 40px -20px -40px 40px; border: 1px solid rgba(10,186,181,0.45); pointer-events: none; }
.paper { position: relative; width: 100%; max-width: 440px; aspect-ratio: 8.5 / 11; background: #F4F4F4; color: #000; border-radius: 16px; padding: 28px; display: flex; flex-direction: column; gap: 14px; box-shadow: 0 12px 32px rgba(0,0,0,0.5); }
.paper-head { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px solid rgba(0,0,0,0.2); padding-bottom: 10px; }
.paper-head .t { font-family: var(--display); font-size: 16px; letter-spacing: 0.04em; text-transform: uppercase; }
.paper-head .v { font-family: var(--mono); font-size: 7px; letter-spacing: 0.08em; color: #3D3D3D; }
.paper-title { font-family: var(--display); font-size: 26px; line-height: 0.9; letter-spacing: 0.02em; text-transform: uppercase; }
.paper-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 6px; font-family: var(--mono); font-size: 6px; line-height: 1.5; color: #262626; }
.paper-grid > div { border-top: 1px solid #000; padding-top: 4px; }
.paper-rows { display: flex; flex-direction: column; gap: 5px; flex: 1; }
.paper-rows > div { display: grid; grid-template-columns: 70px 1fr; gap: 6px; font-family: var(--mono); font-size: 6px; color: #262626; border-bottom: 1px solid rgba(0,0,0,0.12); padding: 4px 0; }
.paper-foot { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 6px; color: #3D3D3D; border-top: 1px solid #000; padding-top: 8px; }
.paper-foot b { color: var(--accent); font-weight: 600; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .why-sec, .apphead, .cheat, .delivery { grid-template-columns: minmax(0,1fr); }
    .concepts { grid-template-columns: minmax(0,1fr); gap: 0; }
  .concept-toc { display: none; }
}
@media (max-width: 860px) {
  .sidebar { position: fixed; z-index: 30; left: 0; top: 0; transform: translateX(-100%); transition: transform 200ms var(--ease); }
  body.nav-open .sidebar { transform: none; }
  .scrim { position: fixed; inset: 0; z-index: 20; background: rgba(0,0,0,0.5); display: none; }
  body.nav-open .scrim { display: block; }
  .menubtn { display: inline-flex; }
  .topbar { padding: 0 16px; gap: 12px; }
  .main { padding: 0 16px 64px; }
  .footer { padding: 24px 16px; }
  .hero h1 { width: auto; max-width: 100%; font-size: clamp(56px, 17vw, 96px); }
  .h-sec { font-size: 44px; }
  .apphead, .page { padding-top: 40px; }
  .step { grid-template-columns: 32px minmax(0,1fr); gap: 8px 16px; }
  .step .body { grid-column: 2; }
  .views-row, .xrow, .dlrow { grid-template-columns: minmax(0,1fr); gap: 6px; }
  .views-row.head, .xrow.head { display: none; }
  .sides, .twocol, .configs, .adoption, .faqlinks-grid, .contract { grid-template-columns: minmax(0,1fr); }
  .side-step { grid-template-columns: minmax(0,1fr); gap: 6px; }
  .why-sec .tiles { grid-template-columns: minmax(0,1fr); }
  .forced { grid-template-columns: minmax(0,1fr); gap: 8px; }
  .faq-q, .faq-a { grid-template-columns: 32px minmax(0,1fr) 40px; }
  .faq-q .q { font-size: 17px; }
}
.btn-primary:disabled { cursor: default; }
.btn-primary:disabled:hover { background: var(--accent); }

.unverified { border: 1px solid var(--line-strong); border-radius: 24px; border-left: 3px solid var(--warn); padding: 18px 24px; display: grid; grid-template-columns: auto minmax(0,1fr); gap: 20px; align-items: center; }
.unverified .label { color: var(--warn); letter-spacing: 0.12em; white-space: nowrap; }
.unverified .why { font-size: 14px; line-height: 1.55; color: var(--fg2); }
@media (max-width: 860px) { .unverified { grid-template-columns: minmax(0,1fr); gap: 8px; } }

.related .related-links { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- quick start ---------- */
.qs-block { display: flex; flex-direction: column; gap: 20px; }
.qs-match { grid-template-columns: repeat(5, minmax(0,1fr)); }
.qs-match > div { padding: 22px; display: flex; flex-direction: column; gap: 10px; }
.qs-match .val { font-family: var(--mono); font-size: 13px; line-height: 1.5; color: var(--fg); word-break: break-word; }
.qs-match .val.accent { color: var(--accent); }
.qs-stages { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.qs-stage { border: 1px solid var(--line-strong); border-top: 3px solid var(--accent); border-radius: 24px; background: var(--panel); padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.qs-stage-head { display: flex; align-items: baseline; gap: 10px; padding-bottom: 4px; }
.qs-stage-head .num { font-family: var(--display); font-size: 22px; color: var(--accent); }
.qs-stage-head .lbl { font-family: var(--mono); font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; }
.qs-rule { font-size: 14px; line-height: 1.55; color: var(--fg2); padding-left: 14px; position: relative; }
.qs-rule::before { content: ''; position: absolute; left: 0; top: 0.72em; width: 6px; height: 1px; background: var(--accent); }
.qs-group { display: flex; flex-direction: column; gap: 10px; padding-top: 8px; }
.qs-row { display: grid; grid-template-columns: 190px minmax(0,1fr) auto; gap: 24px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line-soft); color: var(--fg); transition: background 160ms var(--ease); }
.qs-row:hover { color: var(--fg); background: rgba(255,255,255,0.02); }
.qs-app { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 500; }
.qs-set { font-size: 14.5px; line-height: 1.7; color: var(--fg2); }
.qs-go { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--dim); transition: color 160ms var(--ease); white-space: nowrap; }
.qs-row:hover .qs-go { color: var(--accent); }
.qs-cta { height: 48px; padding: 0 26px; font-size: 14px; }
@media (max-width: 1100px) {
  .qs-match { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .qs-stages { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 860px) {
  .qs-match, .qs-stages { grid-template-columns: minmax(0,1fr); }
  .qs-row { grid-template-columns: minmax(0,1fr); gap: 6px; }
  .qs-go { display: none; }
}

.qs-idea { border: 1px solid var(--line-strong); border-left: 3px solid var(--accent); border-radius: 24px; background: var(--panel); padding: 28px 32px; display: flex; flex-direction: column; gap: 12px; max-width: 900px; }
.qs-idea p { font-size: 19px; line-height: 1.6; color: var(--fg); }
.qs-idea .qs-note { font-size: 14px; color: var(--muted); }
.qs-head { display: flex; align-items: center; gap: 16px; }
.qs-step { width: 40px; height: 40px; flex: none; border-radius: 50%; background: var(--accent); color: #000; display: flex; align-items: center; justify-content: center; font-family: var(--display); font-size: 22px; padding-top: 2px; }
.qs-match .why-line { font-size: 13px; line-height: 1.5; color: var(--muted); }
.qs-stage-h { font-size: 18px; font-weight: 500; line-height: 1.3; color: var(--fg); }
.qs-when { font-size: 13px; line-height: 1.5; color: var(--muted); padding-bottom: 6px; border-bottom: 1px solid var(--line-soft); }
.qs-chip { font-family: var(--mono); font-size: 0.86em; padding: 1px 7px; border-radius: 6px; background: rgba(10,186,181,0.1); border: 1px solid rgba(10,186,181,0.25); color: var(--fg); white-space: nowrap; }
.qs-picker { display: flex; flex-direction: column; gap: 14px; padding: 4px 0 8px; }
.qs-pick-hint { font-size: 14px; color: var(--muted); display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.qs-pick-row { display: grid; grid-template-columns: 130px minmax(0,1fr); gap: 16px; align-items: center; }
.qs-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.qs-pick { cursor: pointer; height: 34px; padding: 0 16px; border-radius: 999px; border: 1.5px dotted var(--dotted); background: transparent; color: var(--fg); font-family: var(--sans); font-size: 13px; transition: all 160ms var(--ease); }
.qs-pick:hover { border-color: var(--fg); }
.qs-pick.on { background: var(--accent); border: 1.5px solid var(--accent); color: #000; }
.qs-clear { cursor: pointer; border: none; background: none; color: var(--accent); font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; padding: 0; }
@media (max-width: 860px) {
  .qs-idea { padding: 22px; }
  .qs-idea p { font-size: 17px; }
  .qs-pick-row { grid-template-columns: minmax(0,1fr); gap: 8px; }
}