/* VECTRA AC website. Editorial paper layout with dark instrument panels. No gradients for decoration, one signal colour. */
:root {
  --paper: #f3f0e8;
  --paper-2: #ebe7dc;
  --card: #fbf9f4;
  --ink: #0a1428;
  --ink-2: #2b3652;
  --muted: #5b677f;
  --line: rgba(10, 20, 40, 0.13);
  --line-strong: rgba(10, 20, 40, 0.24);
  --green: #12b76a;
  --green-ink: #07663a;
  --signal: #2ee59d;
  --navy: #0e2a55;
  --amber: #b87a0a;
  --red: #c4283d;
  --d-bg: #070c18;
  --d-raised: #0b1324;
  --d-surface: #0f182b;
  --d-surface-2: #142038;
  --d-line: rgba(150, 175, 220, 0.12);
  --d-line-strong: rgba(150, 175, 220, 0.22);
  --d-text: #e8ecf4;
  --d-dim: #9aa6be;
  --d-faint: #66728b;
  --d-amber: #f2b84b;
  --d-red: #ff6070;
  --font-ui: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Instrument Serif", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --wrap: 1240px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 17px/1.6 var(--font-ui); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; cursor: pointer; }
::selection { background: var(--signal); color: var(--ink); }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 4px; }
.wrap { width: min(var(--wrap), 100% - 48px); margin-inline: auto; }
.mono { font-family: var(--font-mono); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--ink); color: var(--paper); padding: 10px 14px; border-radius: 6px; z-index: 100; }
.skip:focus { top: 12px; }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(243, 240, 232, 0.88); backdrop-filter: blur(12px); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.site-header.is-scrolled { border-bottom-color: var(--line); }
.nav { display: flex; align-items: center; gap: 36px; height: 72px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand img { width: 34px; height: 34px; object-fit: contain; }
.brand b { font: 600 15px/1 var(--font-ui); letter-spacing: 0.2em; }
.brand b i { font-style: normal; color: var(--green-ink); margin-left: 5px; }
.nav__links { display: flex; gap: 28px; margin-left: 12px; }
.nav__links a { position: relative; font-size: 15px; color: var(--ink-2); padding: 6px 0; }
.nav__links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform 0.25s var(--ease); }
.nav__links a:hover::after { transform: scaleX(1); }
.nav__mobile { display: none; }
.nav__cta { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.lang { display: flex; border: 1px solid var(--line-strong); border-radius: 6px; overflow: hidden; }
.lang button { border: 0; background: none; padding: 6px 9px; font: 500 12px/1 var(--font-mono); letter-spacing: 0.06em; color: var(--muted); }
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line-strong); border-radius: 8px; background: none; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 46px; padding: 0 22px; border-radius: 8px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); font-weight: 600; font-size: 15.5px; white-space: nowrap; transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.12s; }
.btn:hover { background: #17294d; }
.btn:active { transform: translateY(1px); }
.btn svg { width: 17px; height: 17px; transition: transform 0.25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: rgba(10, 20, 40, 0.06); }
.btn--sm { height: 38px; padding: 0 15px; font-size: 14.5px; }
.btn--signal { background: var(--signal); border-color: var(--signal); color: #03150d; }
.btn--signal:hover { background: #6af0bd; }
.btn--lg { height: 52px; padding: 0 26px; font-size: 16.5px; }

/* ---------- typography ---------- */
.eyebrow { font: 500 12px/1.2 var(--font-mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.eyebrow b { color: var(--green-ink); font-weight: 500; }
.h1 { font: 400 clamp(52px, 7.4vw, 108px)/0.98 var(--font-display); letter-spacing: -0.02em; }
.h1 em, .h2 em { font-style: italic; color: var(--green-ink); }
.h2 { font: 400 clamp(38px, 4.6vw, 64px)/1.02 var(--font-display); letter-spacing: -0.015em; }
.h3 { font: 400 28px/1.15 var(--font-display); }
.lead { font-size: clamp(18px, 1.6vw, 21px); line-height: 1.55; color: var(--ink-2); max-width: 58ch; }
.muted { color: var(--muted); }

/* ---------- hero ---------- */
.hero { padding: 76px 0 56px; position: relative; }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr); gap: 64px; align-items: center; }
.hero .eyebrow { margin-bottom: 26px; }
.hero .lead { margin-top: 30px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: 64px; border-top: 1px solid var(--line-strong); }
.facts li { padding: 18px 22px 0 0; }
.facts li + li { padding-left: 22px; border-left: 1px solid var(--line); }
.facts b { display: block; font: 500 14px/1.3 var(--font-ui); }
.facts span { display: block; margin-top: 6px; font-size: 14.5px; line-height: 1.45; color: var(--muted); }

/* ledger (hero card) and shared dark instrument styles */
.instrument { background: var(--d-bg); color: var(--d-text); border-radius: 14px; border: 1px solid #16213a; position: relative; box-shadow: 0 40px 80px -40px rgba(10, 20, 40, 0.55); }
.crop::before, .crop::after { content: ""; position: absolute; width: 14px; height: 14px; border: 1px solid var(--ink); pointer-events: none; }
.crop::before { top: -8px; left: -8px; border-right: 0; border-bottom: 0; }
.crop::after { bottom: -8px; right: -8px; border-left: 0; border-top: 0; }
.ledger__head, .sim__head { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid var(--d-line); font: 500 11.5px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--d-faint); }
.tagm { display: inline-flex; align-items: center; gap: 7px; padding: 4px 9px; border-radius: 99px; border: 1px solid var(--d-line-strong); font: 500 11px/1 var(--font-mono); letter-spacing: 0.1em; color: var(--d-dim); }
.tagm--shadow { color: var(--d-amber); border-color: rgba(242, 184, 75, 0.4); background: rgba(242, 184, 75, 0.09); }
.tagm--enforce { color: var(--signal); border-color: rgba(46, 229, 157, 0.4); background: rgba(46, 229, 157, 0.09); }
.gauge { padding: 22px 18px 6px; }
.gauge__row { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 14px; }
.gauge__score { font: 400 64px/0.9 var(--font-display); letter-spacing: -0.02em; }
.gauge__score small { font: 400 14px var(--font-mono); color: var(--d-faint); margin-left: 6px; letter-spacing: 0; }
.gauge__state { font: 500 13px/1 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; padding: 7px 11px; border-radius: 6px; background: var(--d-surface-2); color: var(--d-dim); }
.gauge__state[data-level="1"] { color: var(--d-amber); background: rgba(242, 184, 75, 0.12); }
.gauge__state[data-level="2"], .gauge__state[data-level="3"] { color: var(--d-red); background: rgba(255, 96, 112, 0.12); }
.bar { position: relative; height: 12px; border-radius: 99px; background: var(--d-surface-2); }
.bar__fill { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 99px; background: var(--signal); width: 0; transition: width 0.7s var(--ease), background 0.3s; }
.bar__fill[data-level="1"] { background: var(--d-amber); }
.bar__fill[data-level="2"], .bar__fill[data-level="3"] { background: var(--d-red); }
.bar__mark { position: absolute; top: -5px; bottom: -5px; width: 1px; background: var(--d-faint); }
.bar__mark span { position: absolute; top: 22px; left: 50%; transform: translateX(-50%); font: 400 10.5px/1 var(--font-mono); color: var(--d-faint); white-space: nowrap; }
.log { margin-top: 36px; padding: 6px 18px 4px; min-height: 238px; font: 400 12.5px/1.5 var(--font-mono); }
.log li { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--d-line); animation: rowin 0.5s var(--ease) both; }
.log li:last-child { border-bottom: 0; }
.log time { color: var(--d-faint); }
.log .w { color: var(--signal); }
.log .skip-note { color: var(--d-faint); }
.log .act { color: var(--d-amber); }
.log .act--bad { color: var(--d-red); }
@keyframes rowin { from { opacity: 0; transform: translateY(6px); } }
.ledger__foot { padding: 12px 18px 16px; font: 400 11px/1.4 var(--font-mono); color: var(--d-faint); border-top: 1px solid var(--d-line); }

/* ---------- sections ---------- */
.section { padding: 128px 0; position: relative; }
.section + .section { border-top: 1px solid var(--line); }
.sec-head { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; margin-bottom: 64px; align-items: start; }
.sec-head__no { font: 500 12px/1.2 var(--font-mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); padding-top: 14px; }
.sec-head__no b { display: block; font: 400 44px/1 var(--font-display); color: var(--ink); margin-bottom: 8px; letter-spacing: 0; }
.sec-head .lead { margin-top: 22px; }
.section--dark { background: var(--d-bg); color: var(--d-text); border-top: 0 !important; }
.section--dark .sec-head__no { color: var(--d-faint); }
.section--dark .sec-head__no b { color: var(--d-text); }
.section--dark .h2 em { color: var(--signal); }
.section--dark .lead, .section--dark .muted { color: var(--d-dim); }
.section--dark .eyebrow { color: var(--d-faint); }

/* principle flow */
.flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--card); overflow: hidden; }
.flow__step { position: relative; padding: 30px 26px 32px; }
.flow__step + .flow__step { border-left: 1px solid var(--line); }
.flow__step + .flow__step::before { content: ""; position: absolute; left: -7px; top: 36px; width: 13px; height: 13px; background: var(--card); border-top: 1px solid var(--line-strong); border-right: 1px solid var(--line-strong); transform: rotate(45deg); }
.flow__who { font: 500 11.5px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.flow__who.server { color: var(--green-ink); }
.flow__step h3 { font: 400 27px/1.1 var(--font-display); margin: 16px 0 10px; }
.flow__step p { font-size: 15.5px; line-height: 1.55; color: var(--ink-2); }
.flow__step svg { width: 30px; height: 30px; margin-top: 22px; color: var(--ink); }
.pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; margin-top: 64px; }
.pillars h4 { font: 600 16px/1.3 var(--font-ui); margin-bottom: 8px; }
.pillars p { font-size: 15.5px; line-height: 1.6; color: var(--ink-2); }
.pillars li { padding-top: 18px; border-top: 1px solid var(--ink); }

/* modules table */
.mods { border-top: 1px solid var(--ink); }
.mod { display: grid; grid-template-columns: 64px minmax(0, 1.1fr) minmax(0, 1.4fr) minmax(0, 1fr); gap: 32px; padding: 30px 12px; border-bottom: 1px solid var(--line-strong); align-items: start; transition: background 0.2s; }
.mod:hover { background: rgba(10, 20, 40, 0.035); }
.mod__no { font: 400 30px/1 var(--font-display); color: var(--muted); }
.mod h3 { font: 400 30px/1.1 var(--font-display); display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.mod p { font-size: 16px; line-height: 1.55; color: var(--ink-2); }
.mod small { display: block; font: 500 11px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.chip { display: inline-block; padding: 3px 8px; margin: 0 5px 6px 0; border: 1px solid var(--line-strong); border-radius: 5px; font: 400 12px/1.4 var(--font-mono); color: var(--ink-2); }
.beta { font: 500 10.5px/1 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; padding: 4px 7px; border-radius: 4px; background: rgba(184, 122, 10, 0.14); color: var(--amber); }
.honest { margin-top: 28px; padding: 18px 22px; border: 1px solid var(--line-strong); border-left: 3px solid var(--ink); border-radius: 6px; background: var(--card); font-size: 15.5px; color: var(--ink-2); max-width: 78ch; }

/* fairness */
.mech { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--ink); margin-bottom: 72px; }
.mech li { padding: 24px 22px 8px 0; }
.mech li + li { padding-left: 22px; border-left: 1px solid var(--line); }
.mech b { display: block; font: 500 12px/1 var(--font-mono); color: var(--green-ink); letter-spacing: 0.1em; margin-bottom: 14px; }
.mech h4 { font: 400 22px/1.15 var(--font-display); margin-bottom: 8px; }
.mech p { font-size: 15px; line-height: 1.5; color: var(--ink-2); }

/* simulator */
.sim { margin-top: 8px; }
.sim__body { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); }
.sim__controls { padding: 22px 22px 26px; border-right: 1px solid var(--d-line); display: flex; flex-direction: column; gap: 22px; }
.sim__label { font: 500 11px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--d-faint); margin-bottom: 10px; }
.sigs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.sig { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--d-line-strong); background: var(--d-surface); color: var(--d-text); text-align: left; font-size: 14px; line-height: 1.25; transition: border-color 0.15s, background 0.15s, transform 0.1s; }
.sig:hover { border-color: var(--signal); background: var(--d-surface-2); }
.sig:active { transform: translateY(1px); }
.sig i { font: 500 12px/1 var(--font-mono); font-style: normal; color: var(--signal); }
.sig--hard i { color: var(--d-red); }
.sim__row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.seg { display: inline-flex; padding: 3px; gap: 2px; border-radius: 9px; background: var(--d-raised); border: 1px solid var(--d-line-strong); }
.seg button { border: 0; background: none; color: var(--d-dim); padding: 7px 14px; border-radius: 6px; font-weight: 500; font-size: 14px; }
.seg button[aria-pressed="true"] { background: var(--d-surface-2); color: var(--d-text); box-shadow: inset 0 0 0 1px var(--d-line-strong); }
.seg button[data-mode="enforce"][aria-pressed="true"] { background: var(--signal); color: #03150d; box-shadow: none; }
.seg button[data-mode="shadow"][aria-pressed="true"] { background: rgba(242, 184, 75, 0.14); color: var(--d-amber); box-shadow: inset 0 0 0 1px rgba(242, 184, 75, 0.4); }
.range { display: flex; align-items: center; gap: 12px; width: 100%; }
.range input { flex: 1; accent-color: var(--signal); }
.range output { font: 500 13px/1 var(--font-mono); min-width: 74px; text-align: right; }
.check { display: flex; align-items: center; gap: 10px; font-size: 14.5px; color: var(--d-dim); cursor: pointer; }
.check input { accent-color: var(--signal); width: 16px; height: 16px; }
.sim__ghost { border: 1px solid var(--d-line-strong); background: none; color: var(--d-dim); padding: 8px 12px; border-radius: 7px; font-size: 14px; }
.sim__ghost:hover { color: var(--d-text); border-color: var(--d-dim); }
.sim__out { padding: 22px; display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.verdict { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 18px; border-radius: 10px; background: var(--d-surface); border: 1px solid var(--d-line-strong); }
.verdict__big { font: 400 38px/1 var(--font-display); }
.verdict[data-level="1"] .verdict__big { color: var(--d-amber); }
.verdict[data-level="2"] .verdict__big, .verdict[data-level="3"] .verdict__big { color: var(--d-red); }
.verdict p { font-size: 14px; line-height: 1.45; color: var(--d-dim); max-width: 34ch; text-align: right; }
.chart { width: 100%; height: auto; display: block; background: var(--d-raised); border: 1px solid var(--d-line); border-radius: 10px; }
.chart text { font: 400 10px var(--font-mono); fill: var(--d-faint); }
.sim__log { max-height: 170px; overflow: auto; font: 400 12.5px/1.5 var(--font-mono); border-top: 1px solid var(--d-line); }
.sim__log li { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--d-line); color: var(--d-dim); }
.sim__log li b { font-weight: 500; color: var(--d-text); }
.sim__log .ok { color: var(--signal); }
.sim__log .no { color: var(--d-faint); }
.sim__log .hit { color: var(--d-amber); }
.sim__log .bad { color: var(--d-red); }
.sim__note { padding: 14px 22px; border-top: 1px solid var(--d-line); font-size: 13.5px; color: var(--d-faint); }

/* panel mock */
.panel-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 72px; align-items: center; }
.feat { display: grid; gap: 0; border-top: 1px solid var(--d-line-strong); }
.feat li { padding: 22px 0; border-bottom: 1px solid var(--d-line); }
.feat b { display: block; font: 500 17px/1.3 var(--font-ui); margin-bottom: 6px; }
.feat p { font-size: 15.5px; line-height: 1.55; color: var(--d-dim); }
.panel-cta { margin-top: 34px; display: flex; gap: 12px; flex-wrap: wrap; }
.mock { overflow: hidden; font-size: 13px; }
.mock__bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; border-bottom: 1px solid var(--d-line); background: var(--d-raised); }
.mock__bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--d-surface-2); }
.mock__bar span { margin-left: 10px; font: 400 11.5px var(--font-mono); color: var(--d-faint); }
.mock__app { display: grid; grid-template-columns: 150px minmax(0, 1fr); min-height: 430px; }
.mock__rail { padding: 14px 10px; border-right: 1px solid var(--d-line); background: var(--d-raised); display: flex; flex-direction: column; gap: 3px; }
.mock__rail div { padding: 7px 9px; border-radius: 6px; color: var(--d-dim); font-size: 12.5px; }
.mock__rail div.on { background: var(--d-surface-2); color: var(--d-text); }
.mock__rail .lbl { font: 500 9.5px var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--d-faint); padding: 12px 9px 5px; }
.mock__main { padding: 18px; display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.mock__title { font: 400 28px/1 var(--font-display); }
.mock__title em { color: var(--signal); }
.mock__tabs { display: flex; gap: 14px; border-bottom: 1px solid var(--d-line); font-size: 12px; color: var(--d-dim); overflow: hidden; }
.mock__tabs span { padding: 7px 0; white-space: nowrap; }
.mock__tabs .on { color: var(--d-text); border-bottom: 2px solid var(--signal); }
.mock__set { display: flex; justify-content: space-between; align-items: center; padding: 11px 0; border-bottom: 1px solid var(--d-line); gap: 12px; }
.mock__set small { display: block; color: var(--d-faint); font-size: 11.5px; margin-top: 2px; }
.sw { width: 32px; height: 18px; border-radius: 99px; background: var(--signal); position: relative; flex: none; }
.sw::after { content: ""; position: absolute; top: 2px; right: 2px; width: 14px; height: 14px; border-radius: 50%; background: #03150d; }
.sw--off { background: var(--d-surface-2); border: 1px solid var(--d-line-strong); }
.sw--off::after { right: auto; left: 2px; background: #b8c3d9; }
.mock__code { margin-top: auto; padding: 12px 14px; border: 1px dashed var(--d-line-strong); border-radius: 8px; font: 400 11.5px/1.5 var(--font-mono); color: #cfe4ff; word-break: break-all; }
.mock__code b { color: var(--signal); font-weight: 500; }
.mock__draft { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border: 1px solid rgba(46, 229, 157, 0.35); border-radius: 8px; background: rgba(46, 229, 157, 0.06); font-size: 12px; color: var(--d-dim); }
.mock__draft b { color: var(--signal); font-weight: 500; }

/* setup */
.steps { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 72px; align-items: start; }
.steps ol { counter-reset: s; border-top: 1px solid var(--ink); }
.steps li { counter-increment: s; display: grid; grid-template-columns: 54px 1fr; gap: 6px; padding: 22px 0; border-bottom: 1px solid var(--line-strong); }
.steps li::before { content: "0" counter(s); font: 400 30px/1 var(--font-display); color: var(--muted); }
.steps b { display: block; font: 600 17px/1.3 var(--font-ui); margin-bottom: 4px; }
.steps p { font-size: 15.5px; line-height: 1.55; color: var(--ink-2); }
.codeblock { padding: 26px 28px; background: var(--d-bg); color: #cfe4ff; border-radius: 12px; font: 400 14px/1.8 var(--font-mono); position: relative; overflow-x: auto; }
.codeblock .c { color: var(--d-faint); }
.codeblock .k { color: var(--signal); }
.codeblock .s { color: #f2d7a0; }
.codeblock + p { margin-top: 14px; font-size: 14.5px; color: var(--muted); }

/* pricing */
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: stretch; }
.plan { display: flex; flex-direction: column; padding: 34px 30px 30px; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--card); position: relative; }
.plan--hl { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.plan__flag { position: absolute; top: -1px; right: -1px; background: var(--signal); color: #03150d; padding: 7px 12px; border-radius: 0 14px 0 10px; font: 600 12px/1 var(--font-ui); letter-spacing: 0.02em; }
.plan h3 { font: 400 32px/1.1 var(--font-display); }
.plan__for { margin-top: 10px; font-size: 15.5px; line-height: 1.5; color: var(--muted); min-height: 70px; }
.plan--hl .plan__for { color: #aeb8cf; }
.plan__term { margin: -14px 0 22px; font-size: 14.5px; color: var(--muted); }
.plan--hl .plan__term { color: #aeb8cf; }
.plan__price { margin: 18px 0 22px; font: 400 62px/1 var(--font-display); letter-spacing: -0.02em; }
.plan__price small { font: 400 15px var(--font-ui); letter-spacing: 0; color: var(--muted); margin-left: 6px; }
.plan--hl .plan__price small { color: #aeb8cf; }
.plan ul { display: grid; gap: 11px; margin-bottom: 30px; flex: 1; }
.plan li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; font-size: 15.5px; line-height: 1.45; }
.plan li svg { width: 17px; height: 17px; margin-top: 3px; color: var(--green-ink); }
.plan--hl li svg { color: var(--signal); }
.plan .btn { width: 100%; }
.plan--hl .btn { background: var(--signal); border-color: var(--signal); color: #03150d; }
.plan--hl .btn:hover { background: #6af0bd; }
.plan .btn--ghost { border-color: var(--ink); }
.pay-note { margin-top: 26px; font-size: 14.5px; color: var(--muted); }

/* faq */
.faq { border-top: 1px solid var(--ink); max-width: 920px; margin-left: auto; }
.faq details { border-bottom: 1px solid var(--line-strong); }
.faq summary { list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 26px 4px; cursor: pointer; font: 400 26px/1.2 var(--font-display); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: none; width: 14px; height: 14px; background: linear-gradient(var(--ink), var(--ink)) center / 100% 1.5px no-repeat, linear-gradient(var(--ink), var(--ink)) center / 1.5px 100% no-repeat; transition: transform 0.3s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 4px 28px; max-width: 70ch; color: var(--ink-2); font-size: 16.5px; }

/* cta + footer */
.cta { background: var(--ink); color: var(--paper); padding: 110px 0; text-align: center; }
.cta .h2 { max-width: 16ch; margin: 0 auto; }
.cta .h2 em { color: var(--signal); }
.cta p { margin: 22px auto 0; max-width: 52ch; color: #aeb8cf; }
.cta .btn { margin-top: 36px; }
.site-footer { background: var(--d-bg); color: var(--d-dim); padding: 64px 0 40px; font-size: 15px; }
.foot { display: grid; grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr)); gap: 40px; }
.foot .brand b { color: var(--d-text); }
.foot .brand b i { color: var(--signal); }
.foot p { margin-top: 16px; max-width: 34ch; line-height: 1.55; }
.foot h5 { margin: 0 0 14px; font: 500 11px/1 var(--font-mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--d-faint); }
.foot a { display: block; padding: 5px 0; color: var(--d-dim); }
.foot a:hover { color: var(--d-text); }
.legal { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--d-line); display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 13.5px; color: var(--d-faint); }

/* reveal */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } * { animation-duration: 0.01ms !important; } html { scroll-behavior: auto; } }

/* legal pages */
.doc { padding: 72px 0 120px; max-width: 760px; }
.doc h1 { font: 400 56px/1.05 var(--font-display); margin-bottom: 28px; }
.doc h2 { font: 400 28px/1.2 var(--font-display); margin: 40px 0 10px; }
.doc p, .doc li { color: var(--ink-2); }
.notice { padding: 16px 18px; border: 1px solid rgba(184, 122, 10, 0.5); background: rgba(184, 122, 10, 0.08); border-radius: 8px; margin-bottom: 30px; }

@media (max-width: 1100px) {
  .hero__grid, .panel-grid, .steps { grid-template-columns: 1fr; gap: 48px; }
  .sec-head { grid-template-columns: 1fr; gap: 18px; margin-bottom: 44px; }
  .sec-head__no b { display: inline; margin-right: 12px; font-size: 34px; }
  .mod { grid-template-columns: 44px minmax(0, 1fr); gap: 14px 20px; }
  .mod > :nth-child(3), .mod > :nth-child(4) { grid-column: 2; }
  .mech { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mech li { padding: 22px 18px 18px 0; border-left: 0 !important; padding-left: 0 !important; }
  .plans { grid-template-columns: 1fr; max-width: 520px; }
  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow__step:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .flow__step:nth-child(4) { border-top: 1px solid var(--line); }
  .flow__step:nth-child(3)::before { display: none; }
  .pillars { grid-template-columns: 1fr; gap: 28px; }
  .sim__body { grid-template-columns: 1fr; }
  .sim__controls { border-right: 0; border-bottom: 1px solid var(--d-line); }
  .foot { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav__links { display: none; }
  .menu-toggle { display: inline-grid; place-items: center; }
  .nav { gap: 12px; }
  .nav.is-open .nav__links { display: flex; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; gap: 0; padding: 12px 24px 24px; background: var(--paper); border-bottom: 1px solid var(--line); margin: 0; }
  .nav.is-open .nav__links a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 17px; }
  .nav__cta .btn--ghost { display: none; }
  .nav.is-open .nav__links .nav__mobile { display: block; font-weight: 600; color: var(--ink); }
  .section { padding: 84px 0; }
  .facts { grid-template-columns: 1fr; }
  .facts li, .facts li + li { padding: 16px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .mock__app { grid-template-columns: 1fr; }
  .mock__rail { display: none; }
  .mech { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .wrap { width: calc(100% - 32px); }
  .nav__cta .btn { display: none; }
  .brand b { letter-spacing: 0.14em; font-size: 14px; }
  .nav__cta { gap: 8px; }
  .hero { padding-top: 44px; }
  .sigs { grid-template-columns: 1fr; }
  .verdict { flex-direction: column; align-items: flex-start; }
  .verdict p { text-align: left; }
  .foot { grid-template-columns: 1fr; }
  .faq summary { font-size: 22px; }
  .gauge__score { font-size: 52px; }
}

.plan__old { font-size: 0.42em; color: var(--muted); margin-right: 12px; vertical-align: middle; text-decoration-thickness: 2px; }
.plan--hl .plan__old { color: #8a96ad; }