/* ORZENO — Design 2 "Apex": trading-terminal HUD.
   Tokens: primitive -> semantic -> component. Component rules use tokens only. */

@property --ga {
  syntax: '<number>';
  inherits: true;
  initial-value: 0;
}

:root {
  /* primitive — client's official ORZENO tokens */
  --p-midnight: #08111f;
  --p-navy: #102039;
  --p-elevated: #152b43;
  --p-blue: #3a8dff;
  --p-blue-cta: #1f69d0;
  --p-cyan: #2ed3e6;
  --p-frost: #f3f7fd;
  --p-amber: #f2b24c;
  /* primitive — derived */
  --p-blue-hi: #7db6ff;
  --p-muted: #a9b8ce;
  --p-dim: #8fa1ba;
  --p-ink: #050b15;
  --p-white: #ffffff;

  /* semantic */
  --bg: var(--p-midnight);
  --bg-panel: var(--p-ink);
  --surface: var(--p-navy);
  --surface-hi: var(--p-elevated);
  --text: var(--p-frost);
  --muted: var(--p-muted);
  --dim: var(--p-dim);
  --accent: var(--p-cyan);
  --accent-2: var(--p-blue-hi);
  --warn: var(--p-amber);
  --line: rgb(243 247 253 / 0.1);
  --line-hi: rgb(243 247 253 / 0.2);
  --line-accent: rgb(46 211 230 / 0.45);
  --grid: rgb(58 141 255 / 0.11);
  --focus: var(--p-cyan);

  --f-display: 'Chakra Petch', 'Inter', system-ui, sans-serif;
  --f-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;

  --gutter: clamp(18px, 4vw, 44px);
  --sec-y: clamp(72px, 8vw, 124px);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur: 220ms;
  --header-h: 68px;
  --mono-s: 0.6875rem;

  /* component */
  --btn-h: 52px;
  --btn-bg: var(--p-blue-cta);
  --btn-fg: var(--p-white);
  --hud-cut: 16px;
  --hud-line: var(--line-hi);
  --hud-bg: var(--surface);
  --hud-bracket: var(--accent);
  --chip-fg: var(--accent);
  --chip-line: var(--line-accent);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 18px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
button:disabled { cursor: not-allowed; }
svg { display: block; }
em { font-style: normal; }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
::selection { background: var(--accent); color: var(--p-midnight); }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.i { width: 1.15em; height: 1.15em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.i--flip { transform: rotate(180deg); }
.shell { width: min(1320px, 100%); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: 12px; top: -80px; z-index: 200; padding: 12px 18px; background: var(--accent); color: var(--p-midnight); font-weight: 600; }
.skip:focus { top: 12px; }
.led { display: inline-block; width: 7px; height: 7px; margin-right: 9px; background: var(--accent); box-shadow: 0 0 10px var(--accent); vertical-align: middle; animation: blink 2.2s ease-in-out infinite; }
@keyframes blink { 50% { opacity: 0.35; } }

/* shared mono text */
.util, .eyebrow, .label, .tag, .chip, .tlink, .foot-note, .num, .term-bar, .term-tabs, .term-foot, .surface-fig figcaption, .term-chart figcaption,
.panel-bar, .panel-foot, .box-bar, .tour-hint, .ticker, .bullets, .also, .reviewed, .footer-col h2, .footer-bottom, .switch, .pause, .mobile-note, .marks {
  font-family: var(--f-mono);
  font-size: var(--mono-s);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* HUD frame: chamfered corners + corner brackets + cursor glow */
.hud { position: relative; isolation: isolate; transition: --ga 300ms var(--ease); }
.hud::before, .hud::after {
  content: '';
  position: absolute;
  z-index: -1;
  clip-path: polygon(var(--hud-cut) 0, 100% 0, 100% calc(100% - var(--hud-cut)), calc(100% - var(--hud-cut)) 100%, 0 100%, 0 var(--hud-cut));
  pointer-events: none;
}
.hud::before { inset: 0; background: var(--hud-line); transition: background-color var(--dur) var(--ease); }
.hud::after {
  inset: 1px;
  background:
    radial-gradient(380px circle at var(--mx, 50%) var(--my, 0%), rgb(46 211 230 / var(--ga)), transparent 62%),
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) right 9px top 9px / 16px 2px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) right 9px top 9px / 2px 16px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) left 9px bottom 9px / 16px 2px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) left 9px bottom 9px / 2px 16px no-repeat,
    var(--hud-bg);
}
.glow:hover { --ga: 0.16; --hud-line: var(--line-accent); }

/* utility strip */
.util { border-bottom: 1px solid var(--line); background: var(--bg-panel); color: var(--muted); }
.util-in { display: flex; justify-content: space-between; align-items: center; gap: 6px 24px; flex-wrap: wrap; padding-block: 8px; }
.util-r { display: flex; align-items: center; gap: 6px 22px; flex-wrap: wrap; }
.util a { display: inline-flex; align-items: center; gap: 8px; min-height: 28px; padding: 0 10px; border: 1px solid var(--line-accent); color: var(--accent); }
.util a:hover { background: var(--accent); color: var(--p-midnight); }

/* header */
.header { position: sticky; top: 0; z-index: 100; background: rgb(8 17 31 / 0.86); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.header-in { display: flex; align-items: center; gap: 26px; height: var(--header-h); }
.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo-mark { width: 30px; height: 30px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linejoin: round; transition: transform 500ms var(--ease); }
.logo:hover .logo-mark { transform: rotate(90deg); }
.logo strong { font-family: var(--f-display); font-size: 1.2rem; font-weight: 700; letter-spacing: 0.26em; }
.nav { display: flex; gap: 2px; margin-inline: auto; }
.nav a { position: relative; padding: 10px 12px; font-size: 0.86rem; font-weight: 500; color: var(--muted); transition: color var(--dur) var(--ease); }
.nav a::after { content: ''; position: absolute; left: 12px; right: 12px; bottom: 4px; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: 0 50%; transition: transform 300ms var(--ease); }
.nav a:hover, .nav a.is-active { color: var(--text); }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.menu-btn { display: none; place-items: center; width: 46px; height: 46px; margin-left: auto; border: 1px solid var(--line-hi); }
.menu-btn .i { width: 22px; height: 22px; }
.menu-btn .i--close, .menu-btn[aria-expanded='true'] .i--open { display: none; }
.menu-btn[aria-expanded='true'] .i--close { display: block; }
.mobile-panel { padding: 4px var(--gutter) 24px; border-top: 1px solid var(--line); background: var(--bg); max-height: calc(100dvh - var(--header-h)); overflow-y: auto; }
.mobile-panel li a { display: flex; align-items: baseline; gap: 16px; min-height: 52px; padding: 13px 0; border-bottom: 1px solid var(--line); font-family: var(--f-display); font-size: 1.2rem; font-weight: 600; }
.mobile-panel li span { font-family: var(--f-mono); font-size: var(--mono-s); color: var(--accent); }
.mobile-panel .btn { width: 100%; margin-top: 20px; }
.mobile-note { margin-top: 16px; color: var(--muted); line-height: 1.7; }

/* buttons, links, chips */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: var(--btn-h); padding: 0 24px;
  font-family: var(--f-display); font-size: 0.95rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; white-space: nowrap;
  cursor: pointer;
  transition: transform var(--dur) var(--ease), filter var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.btn .i, .tlink .i { transition: transform var(--dur) var(--ease); }
.btn:hover .i, .tlink:hover .i { transform: translateX(4px); }
.btn:active { transform: scale(0.97); }
.btn--sm { min-height: 44px; padding: 0 18px; font-size: 0.82rem; }
.btn--primary { background: var(--btn-bg); color: var(--btn-fg); clip-path: polygon(11px 0, 100% 0, 100% calc(100% - 11px), calc(100% - 11px) 100%, 0 100%, 0 11px); }
.btn--primary:hover { filter: drop-shadow(0 0 14px rgb(58 141 255 / 0.85)); transform: translateY(-2px); }
.btn--primary:focus-visible { outline: none; box-shadow: inset 0 0 0 2px var(--p-white), inset 0 0 0 4px var(--p-midnight); }
.btn--ghost { border: 1px solid var(--line-hi); color: var(--text); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.tlink { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--accent); border-bottom: 1px solid transparent; transition: border-color var(--dur) var(--ease); }
.tlink:hover { border-color: var(--accent); }
.chip { display: inline-flex; align-items: center; min-height: 24px; padding: 0 9px; border: 1px solid var(--chip-line); color: var(--chip-fg); white-space: nowrap; letter-spacing: 0.1em; }
.chip--soft { --chip-line: var(--line-hi); --chip-fg: var(--muted); }
.tag { color: var(--accent); }
.foot-note { margin-top: 24px; color: var(--dim); line-height: 1.8; letter-spacing: 0.1em; }

/* type */
h1, h2, h3 { font-family: var(--f-display); font-weight: 700; }
h1 { font-size: clamp(2.6rem, 4.6vw, 4.4rem); line-height: 1; letter-spacing: -0.01em; }
h1 span { display: block; }
.is-cyan { color: var(--accent); text-shadow: 0 0 40px rgb(46 211 230 / 0.45); }
h2 { font-size: clamp(1.9rem, 3.5vw, 3.1rem); line-height: 1.08; letter-spacing: -0.005em; text-wrap: balance; }
h2 em { display: block; color: var(--accent); }
h3 { font-size: 1.45rem; line-height: 1.2; }
.lead { margin-top: 18px; color: var(--muted); max-width: 52ch; }

/* hero */
.hero { position: relative; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; pointer-events: none; overflow: hidden;
  background:
    radial-gradient(46% 60% at 82% 28%, rgb(58 141 255 / 0.2), transparent 70%),
    radial-gradient(36% 44% at 6% 4%, rgb(46 211 230 / 0.12), transparent 70%),
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 44px 44px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 44px 44px;
}
.scan { position: absolute; left: 0; right: 0; top: 0; height: 140px; background: linear-gradient(180deg, transparent, rgb(46 211 230 / 0.06) 70%, rgb(46 211 230 / 0.28) 99%, transparent); transform: translateY(-140px); animation: scan 9s linear infinite; }
@keyframes scan { to { transform: translateY(1200px); } }
.hero-in { position: relative; display: grid; grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr); gap: clamp(28px, 4vw, 60px); align-items: center; padding-block: clamp(40px, 5.4vw, 80px); }
.eyebrow { display: inline-flex; align-items: center; margin-bottom: 22px; padding: 7px 14px; border: 1px solid var(--line-accent); color: var(--accent); }
.js .hero-copy > * { animation: rise 800ms var(--ease) both; }
.js .hero-copy > :nth-child(2) { animation-delay: 80ms; }
.js .hero-copy > :nth-child(3) { animation-delay: 160ms; }
.js .hero-copy > :nth-child(n + 4) { animation-delay: 240ms; }
.js .term { animation: rise 900ms var(--ease) 200ms both; }
@keyframes rise { from { opacity: 0; transform: translateY(22px); } }
.hero-body { margin-top: 24px; font-size: clamp(1rem, 1.25vw, 1.15rem); color: var(--muted); max-width: 46ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.marks { display: grid; gap: 10px; margin-top: 30px; color: var(--muted); }
.marks li { display: flex; align-items: center; gap: 10px; }
.marks .i, .checks .i { color: var(--accent); }

/* concept terminal */
.term { --hud-bg: var(--p-navy); --hud-cut: 20px; box-shadow: 0 50px 100px -50px rgb(58 141 255 / 0.55); }
.term-bar, .panel-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px 16px; flex-wrap: wrap; padding: 13px 18px 13px 26px; border-bottom: 1px solid var(--line); color: var(--muted); }
.term-path { margin-right: auto; }
.dots { display: flex; gap: 6px; }
.dots i { width: 9px; height: 9px; background: var(--line-hi); }
.dots i:first-child { background: var(--accent); }
.term-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.term-tabs button { display: flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 6px 10px; border-right: 1px solid var(--line); color: var(--muted); letter-spacing: 0.08em; transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.term-tabs button:last-child { border-right: 0; }
.term-tabs button span { color: var(--dim); }
.term-tabs button:hover { color: var(--text); }
.term-tabs button[aria-selected='true'] { background: var(--surface-hi); color: var(--text); }
.term-tabs button[aria-selected='true'] span { color: var(--accent); }
.term-progress { height: 2px; background: var(--line); }
.term-progress i { display: block; height: 100%; background: var(--accent); box-shadow: 0 0 12px var(--accent); transform: scaleX(0); transform-origin: 0 50%; }
.js .term-progress i { animation: fill 6.5s linear forwards; }
.term:hover .term-progress i, .term:focus-within .term-progress i { animation-play-state: paused; }
@keyframes fill { to { transform: scaleX(1); } }
.surface { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); gap: 22px; align-items: center; min-height: 236px; padding: 24px 22px 20px; }
.surface[hidden] { display: none; }
.js .surface:not([hidden]) { animation: swap 480ms var(--ease); }
@keyframes swap { from { opacity: 0; transform: translateX(14px); } }
.surface h2 { margin-top: 10px; font-size: clamp(1.45rem, 2.2vw, 2rem); }
.surface-copy > p:last-child { margin-top: 12px; font-size: 0.95rem; color: var(--muted); }
.surface-fig { display: grid; gap: 10px; padding: 14px; border: 1px solid var(--line); background: var(--bg-panel); }
.surface-fig figcaption, .term-chart figcaption { color: var(--dim); letter-spacing: 0.08em; line-height: 1.7; }
.mini--brief { display: grid; gap: 12px; }
.mini--brief p { display: grid; gap: 5px; }
.mini--brief b, .mini--rules b { font-family: var(--f-mono); font-size: var(--mono-s); font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.mini--brief i { height: 5px; background: var(--line-hi); }
.mini--brief i.s { width: 62%; background: var(--line); }
.mini--rules { display: grid; justify-items: start; }
.mini--rules b { padding: 5px 10px; border: 1px solid var(--line-accent); }
.mini--rules b.stop { border-style: dashed; color: var(--accent-2); border-color: var(--accent-2); }
.mini--rules span { width: 1px; height: 14px; margin-left: 18px; background: var(--line-accent); }
.mini--depth { display: grid; gap: 5px; }
.mini--depth i, .depth i { height: 8px; background: var(--p-blue); opacity: 0.75; }
.mini--depth u ~ i, .depth .b { background: var(--accent); }
.mini--depth u, .depth u { display: flex; align-items: center; gap: 10px; font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; color: var(--muted); }
.mini--depth u::after, .depth u::after { content: ''; flex: 1; height: 1px; background: var(--line-hi); }
.d1, .w1 { width: 38%; }
.d2, .w2 { width: 60%; }
.d3, .w3 { width: 78%; }
.d4, .w4 { width: 94%; }
.term-chart { display: grid; gap: 8px; margin: 0 22px; }
.term-chart svg { width: 100%; height: 112px; border: 1px solid var(--line); background: var(--bg-panel); }
.c-grid { stroke: var(--line); fill: none; }
.c-wick { stroke: var(--line-hi); fill: none; vector-effect: non-scaling-stroke; }
.c-body rect { fill: var(--accent); opacity: 0.85; transform-box: fill-box; transform-origin: 50% 50%; animation: tick 2.6s ease-in-out infinite alternate; }
.c-body rect.dn { fill: var(--p-blue); }
.c-body rect:nth-child(3n) { animation-delay: -0.9s; }
.c-body rect:nth-child(4n + 1) { animation-delay: -1.7s; animation-duration: 3.4s; }
.c-body rect:nth-child(5n + 2) { animation-delay: -0.4s; animation-duration: 2.1s; }
@keyframes tick { to { transform: scaleY(0.5); } }
.c-line { fill: none; stroke: var(--p-frost); stroke-width: 1.4; vector-effect: non-scaling-stroke; stroke-dasharray: 1; animation: draw 7s var(--ease) infinite; }
@keyframes draw { from { stroke-dashoffset: 1; } 55%, 100% { stroke-dashoffset: 0; } }
.term-foot { display: flex; justify-content: space-between; align-items: center; gap: 10px 16px; flex-wrap: wrap; padding: 14px 30px 16px 22px; color: var(--dim); }
.pause { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border: 1px solid var(--line-hi); color: var(--text); letter-spacing: 0.1em; transition: border-color var(--dur) var(--ease); }
.pause:hover { border-color: var(--accent); }
.pause[aria-pressed='true'] .led { background: transparent; box-shadow: inset 0 0 0 1px var(--accent); animation: none; }

/* ticker */
.ticker { position: relative; border-block: 1px solid var(--line); background: var(--bg-panel); overflow: hidden; }
.ticker-track { display: flex; width: max-content; padding-block: 15px; color: var(--muted); animation: marquee 40s linear infinite; }
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker span { display: inline-flex; align-items: center; padding-left: 34px; white-space: nowrap; }
.ticker span::after { content: ''; width: 6px; height: 6px; margin-left: 34px; background: var(--accent); transform: rotate(45deg); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* sections */
.sec { position: relative; padding-block: var(--sec-y); }
.sec--panel { background: var(--bg-panel); border-block: 1px solid var(--line); }
.head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.6fr); gap: 20px 56px; align-items: end; margin-bottom: clamp(32px, 4vw, 54px); }
.label { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; color: var(--muted); }
.label span { padding: 2px 8px; background: var(--accent); color: var(--p-midnight); font-weight: 700; }
.aside { color: var(--muted); max-width: 46ch; justify-self: end; }
.aside .tlink { margin-top: 8px; }

/* flagship trio */
.trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card { display: flex; flex-direction: column; padding: 28px 26px 22px; --hud-bg: var(--p-navy); transition: transform 320ms var(--ease), --ga 300ms var(--ease); }
.card:hover { transform: translateY(-6px); }
.card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 26px; }
.ico { display: grid; place-items: center; width: 52px; height: 52px; border: 1px solid var(--line-accent); background: rgb(46 211 230 / 0.08); color: var(--accent); }
.ico .i { width: 24px; height: 24px; }
.num { font-size: 0.8rem; color: var(--dim); }
.card h3 { margin-top: 10px; font-size: clamp(1.4rem, 2vw, 1.75rem); }
.card > p:not(.tag) { margin-top: 12px; color: var(--muted); }
.bullets { display: grid; margin: 20px 0 14px; border-top: 1px solid var(--line); color: var(--text); letter-spacing: 0.08em; }
.bullets li { display: flex; align-items: center; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.bullets li::before { content: ''; width: 6px; height: 6px; flex: none; background: var(--accent); }
.card .tlink { margin-top: auto; align-self: flex-start; }
.also { display: grid; grid-template-columns: minmax(0, 0.9fr) repeat(4, minmax(0, 1fr)); margin-top: 18px; border: 1px solid var(--line); color: var(--muted); }
.also p { display: flex; align-items: center; padding: 14px 18px; }
.also a { display: flex; align-items: center; gap: 10px; min-height: 56px; padding: 12px 16px; border-left: 1px solid var(--line); font-family: var(--f-body); font-size: 0.95rem; letter-spacing: 0; text-transform: none; color: var(--text); transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.also a:hover { background: var(--surface); color: var(--accent); }
.also .i { color: var(--accent); }
.also .go { margin-left: auto; color: var(--dim); }

/* platform tour */
.tour { display: grid; grid-template-columns: minmax(0, 0.36fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 44px); align-items: start; }
.tour-tabs { display: grid; border-top: 1px solid var(--line); }
.tour-tabs button { display: flex; align-items: flex-start; gap: 16px; width: 100%; min-height: 76px; padding: 18px 14px; border-bottom: 1px solid var(--line); border-left: 2px solid transparent; text-align: left; color: var(--muted); transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.tour-tabs .n { padding-top: 5px; font-family: var(--f-mono); font-size: var(--mono-s); color: var(--dim); }
.tour-tabs .t { display: grid; gap: 4px; }
.tour-tabs b { font-family: var(--f-display); font-size: 1.25rem; font-weight: 600; line-height: 1.2; }
.tour-tabs small { font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.1em; text-transform: uppercase; }
.tour-tabs button:hover { color: var(--text); background: rgb(243 247 253 / 0.03); }
.tour-tabs button[aria-selected='true'] { border-left-color: var(--accent); background: linear-gradient(90deg, rgb(46 211 230 / 0.12), transparent 85%); color: var(--text); }
.tour-tabs button[aria-selected='true'] .n { color: var(--accent); }
.tour-hint { display: flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--dim); letter-spacing: 0.08em; line-height: 1.7; }
kbd { display: inline-grid; place-items: center; min-width: 26px; height: 26px; border: 1px solid var(--line-hi); font-family: var(--f-mono); font-size: 0.75rem; color: var(--muted); }
.panel { --hud-bg: var(--p-navy); --hud-cut: 20px; }
.panel[hidden] { display: none; }
.js .panel:not([hidden]) { animation: swap 480ms var(--ease); }
.tour-panels .panel + .panel { margin-top: 18px; }
.js .tour-panels .panel + .panel { margin-top: 0; }
.panel-body { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 20px; padding: 22px; }
.box { border: 1px solid var(--line); background: var(--bg-panel); }
.box-bar { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; padding: 12px 16px; border-bottom: 1px solid var(--line); color: var(--text); }
.brief div, .order div { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 14px; align-items: baseline; padding: 15px 16px; border-bottom: 1px solid var(--line); }
.brief div:last-child { border-bottom: 0; }
.brief dt, .order dt, .facts dt, .steps span { font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.brief dd, .order dd { font-size: 0.95rem; }
.side { display: grid; gap: 16px; align-content: start; }
.steps { position: relative; display: grid; gap: 18px; padding-left: 22px; }
.steps::before { content: ''; position: absolute; left: 3px; top: 8px; bottom: 8px; width: 1px; background: var(--line-accent); }
.steps li { position: relative; display: grid; gap: 2px; }
.steps li::before { content: ''; position: absolute; left: -22px; top: 6px; width: 7px; height: 7px; background: var(--accent); }
.steps b { font-family: var(--f-display); font-size: 1.1rem; font-weight: 600; }
.steps p, .facts dd { font-size: 0.9rem; color: var(--muted); }
.warn { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-left: 2px solid var(--warn); background: rgb(242 178 76 / 0.08); font-size: 0.88rem; line-height: 1.55; color: var(--text); }
.warn .i { margin-top: 2px; color: var(--warn); }
.flow { display: grid; padding: 18px 16px; }
.flow li { position: relative; display: grid; grid-template-columns: 84px minmax(0, 1fr); gap: 12px; align-items: baseline; padding: 13px 14px; border: 1px solid var(--line-accent); background: rgb(46 211 230 / 0.05); font-size: 0.95rem; }
.flow li + li { margin-top: 24px; }
.flow li + li::before { content: ''; position: absolute; left: 30px; top: -25px; width: 1px; height: 24px; background: var(--line-accent); }
.flow li + li::after { content: ''; position: absolute; left: 27px; top: -9px; width: 7px; height: 7px; border-right: 1px solid var(--accent); border-bottom: 1px solid var(--accent); transform: rotate(45deg); }
.flow b { font-family: var(--f-mono); font-size: var(--mono-s); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.flow .stop { border-style: dashed; border-color: var(--accent-2); background: rgb(125 182 255 / 0.05); }
.flow .stop b { color: var(--accent-2); }
.ctls { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 0 16px 18px; }
.ctl { display: inline-flex; align-items: center; min-height: 34px; padding: 0 12px; border: 1px dashed var(--line-hi); font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.ctls em, .order-cta em { font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.1em; text-transform: uppercase; color: var(--dim); }
.ctls em { margin-left: auto; }
.facts { display: grid; border: 1px solid var(--line); }
.facts div { display: grid; gap: 2px; padding: 13px 16px; border-bottom: 1px solid var(--line); }
.facts div:last-child { border-bottom: 0; }
.order div { grid-template-columns: 112px minmax(0, 1fr); align-items: center; padding-block: 12px; }
.seg { display: inline-grid; grid-template-columns: 1fr 1fr; width: max-content; border: 1px solid var(--line-hi); }
.seg span { padding: 5px 16px; font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.seg .on { background: var(--surface-hi); color: var(--accent); }
.order-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 16px; }
.order-cta button { min-height: 44px; padding: 0 18px; border: 1px dashed var(--line-hi); font-family: var(--f-display); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--dim); }
.depth { display: grid; gap: 6px; padding: 16px; }
.depth i { height: 10px; }
.panel-foot { display: flex; justify-content: space-between; gap: 8px 16px; flex-wrap: wrap; padding: 13px 30px 15px 22px; border-top: 1px solid var(--line); color: var(--dim); letter-spacing: 0.08em; }
.notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 24px; margin-top: 24px; }
.notes li { padding-top: 16px; border-top: 1px solid var(--line-accent); }
.notes b { font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.notes p { margin-top: 6px; font-size: 0.92rem; color: var(--muted); }

/* why */
.quad { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.mod { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 24px; padding: 30px 28px; --hud-bg: var(--p-navy); transition: transform 320ms var(--ease), --ga 300ms var(--ease); }
.mod:hover { transform: translateY(-4px); }
.mod .num { grid-row: span 2; font-family: var(--f-display); font-size: 3rem; font-weight: 700; line-height: 1; letter-spacing: 0; color: transparent; -webkit-text-stroke: 1px var(--line-accent); }
.mod p { color: var(--muted); }

/* ecosystem */
.matrix-wrap { --hud-bg: var(--p-navy); --hud-cut: 20px; }
.matrix-wrap .panel-bar { letter-spacing: 0.1em; }
.matrix { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border-bottom: 1px solid var(--line); }
.matrix li { position: relative; display: grid; align-content: start; gap: 6px; min-height: 150px; padding: 20px; background: var(--p-navy); transition: background-color var(--dur) var(--ease); }
.matrix li:hover { background: var(--surface-hi); }
.matrix .i { width: 26px; height: 26px; margin-bottom: 10px; color: var(--accent-2); }
.matrix .n { position: absolute; right: 16px; top: 16px; font-family: var(--f-mono); font-size: var(--mono-s); color: var(--dim); }
.matrix b { font-family: var(--f-display); font-size: 1.15rem; font-weight: 600; line-height: 1.2; }
.matrix small { font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.matrix .is-flag { box-shadow: inset 0 2px 0 var(--accent); }
.matrix .is-flag .i, .matrix .is-flag small { color: var(--accent); }
.matrix .is-core { place-content: center; justify-items: center; text-align: center; background: linear-gradient(135deg, rgb(31 105 208 / 0.45), rgb(46 211 230 / 0.12)); }
.matrix .is-core:hover { background: linear-gradient(135deg, rgb(31 105 208 / 0.55), rgb(46 211 230 / 0.18)); }
.matrix .is-core .i { width: 34px; height: 34px; color: var(--text); animation: spin 18s linear infinite; }
.matrix .is-core b { letter-spacing: 0.24em; }
.matrix .is-core small { color: var(--text); }
@keyframes spin { to { transform: rotate(360deg); } }
.matrix-note { padding: 16px 30px 18px 22px; font-size: 0.9rem; color: var(--muted); }
.matrix-note span { display: block; margin-top: 8px; font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.08em; text-transform: uppercase; color: var(--dim); }
.table-wrap { margin-top: 26px; }
.index th, .index td { padding: 16px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: baseline; }
.index thead th { font-family: var(--f-mono); font-size: var(--mono-s); font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dim); }
.index td:first-child { width: 64px; font-family: var(--f-mono); font-size: var(--mono-s); color: var(--accent); }
.index tbody th { font-family: var(--f-display); font-size: 1.2rem; font-weight: 600; white-space: nowrap; }
.index td:last-child { color: var(--muted); }
.index tbody tr { transition: background-color var(--dur) var(--ease); }
.index tbody tr:hover { background: rgb(46 211 230 / 0.05); }
.pos { display: inline-flex; align-items: center; min-height: 24px; padding: 0 9px; border: 1px solid var(--line-hi); font-family: var(--f-mono); font-size: var(--mono-s); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.pos--flag { border-color: var(--line-accent); color: var(--accent); }

/* how it works: pipeline */
.pipe { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 22px; padding-top: 42px; }
.pipe::before { content: ''; position: absolute; left: 0; right: 0; top: 8px; height: 2px; background: linear-gradient(90deg, var(--accent), var(--p-blue)); opacity: 0.5; }
.pipe::after { content: ''; position: absolute; top: 3px; left: 0; width: 46px; height: 12px; background: radial-gradient(closest-side, var(--p-frost), var(--accent) 45%, transparent); filter: blur(1px); animation: pulse-x 5.5s linear infinite; }
@keyframes pulse-x { from { left: -46px; opacity: 1; } 92% { opacity: 1; } to { left: 100%; opacity: 0; } }
.pipe li { position: relative; padding: 0 4px 0 0; }
.node { position: absolute; left: 0; top: -41px; width: 16px; height: 16px; border: 2px solid var(--accent); background: var(--bg); transform: rotate(45deg); box-shadow: 0 0 16px rgb(46 211 230 / 0.6); }
.pipe h3 { margin-top: 10px; font-size: clamp(1.3rem, 1.9vw, 1.6rem); }
.pipe li > p:last-child { margin-top: 12px; font-size: 0.95rem; color: var(--muted); }

/* traders & creators */
.duo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.side-card { padding: 32px 28px; --hud-bg: var(--p-navy); }
.side-card--b { --hud-bracket: var(--accent-2); }
.side-card--b .tag, .side-card--b .checks .i { color: var(--accent-2); }
.side-card h3 { margin-top: 10px; font-size: clamp(1.5rem, 2.4vw, 2rem); }
.side-card > p:not(.tag) { margin-top: 12px; color: var(--muted); }
.checks { display: grid; margin-top: 22px; border-top: 1px solid var(--line); }
.checks li { display: flex; gap: 12px; align-items: flex-start; padding: 13px 0; border-bottom: 1px solid var(--line); }
.checks .i { margin-top: 4px; }
.absent { margin-top: 18px; padding: 24px 26px; border: 1px dashed var(--line-hi); }
.absent h3 { font-size: 1.2rem; }
.absent p { margin-top: 8px; color: var(--muted); max-width: 96ch; }

/* faq */
.faq { display: grid; grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.reviewed { margin-top: 22px; color: var(--dim); }
.faq-list { display: grid; gap: 10px; }
.faq-list details { border: 1px solid var(--line); background: var(--surface); transition: border-color var(--dur) var(--ease); }
.faq-list details[open], .faq-list details:hover { border-color: var(--line-accent); }
.faq-list summary { display: flex; align-items: center; gap: 16px; min-height: 64px; padding: 14px 18px; font-family: var(--f-display); font-size: 1.1rem; font-weight: 600; line-height: 1.3; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { font-family: var(--f-mono); font-size: var(--mono-s); font-weight: 500; color: var(--accent); }
.faq-list summary .i { margin-left: auto; width: 20px; height: 20px; color: var(--accent); transition: transform var(--dur) var(--ease); }
.faq-list details[open] summary .i { transform: rotate(45deg); }
.faq-list details p { padding: 0 18px 20px 56px; color: var(--muted); }

/* final call */
.begin { position: relative; padding-block: clamp(56px, 7vw, 104px); overflow: hidden; }
.begin .shell { position: relative; }
.begin-in { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr); gap: 28px 56px; align-items: center; padding: clamp(28px, 5vw, 64px); --hud-bg: var(--p-elevated); --hud-cut: 28px; --hud-line: var(--line-accent); }
.begin h2 { font-size: clamp(2.2rem, 4.6vw, 4rem); }
.begin-side { display: grid; gap: 12px; }
.begin-side .foot-note { margin-top: 6px; }

/* footer */
.footer { padding: clamp(48px, 6vw, 76px) 0 104px; border-top: 1px solid var(--line); background: var(--bg-panel); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 0.7fr)); gap: 32px; }
.footer-brand p { margin-top: 16px; font-size: 0.92rem; color: var(--muted); max-width: 44ch; }
.footer-col { display: grid; align-content: start; gap: 2px; }
.footer-col h2 { margin-bottom: 8px; font-weight: 500; color: var(--accent); }
.footer-col a { display: flex; align-items: center; min-height: 40px; font-size: 0.92rem; color: var(--muted); transition: color var(--dur) var(--ease); }
.footer-col a:hover { color: var(--text); }
.legal { margin-top: 36px; padding: 18px 20px; border-left: 2px solid var(--warn); background: rgb(242 178 76 / 0.06); font-size: 0.86rem; line-height: 1.7; color: var(--muted); }
.footer-bottom { display: flex; justify-content: space-between; gap: 8px 28px; flex-wrap: wrap; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--dim); letter-spacing: 0.08em; line-height: 1.8; }

/* design switcher */
.switch { position: fixed; right: 16px; bottom: 16px; z-index: 90; display: inline-flex; align-items: center; gap: 12px; min-height: 46px; padding: 0 16px; border: 1px solid var(--line-accent); background: rgb(8 17 31 / 0.95); color: var(--muted); letter-spacing: 0.1em; box-shadow: 0 16px 40px -12px rgb(0 0 0 / 0.8); transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease); }
.switch b { font-weight: 700; color: var(--accent); }
.switch .i { color: var(--accent); }
.switch:hover { border-color: var(--accent); transform: translateY(-2px); }

/* reveal */
.js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity 700ms var(--ease) var(--d, 0ms), transform 700ms var(--ease) var(--d, 0ms), --ga 300ms var(--ease); }
.js [data-reveal].is-in { opacity: 1; transform: none; }
.js .card[data-reveal].is-in:hover { transform: translateY(-6px); transition-delay: 0ms; transition-duration: 320ms; }
.js .mod[data-reveal].is-in:hover { transform: translateY(-4px); transition-delay: 0ms; transition-duration: 320ms; }

/* motion paused by the visitor */
.is-paused *, .is-paused *::before, .is-paused *::after { animation-play-state: paused !important; }

/* responsive */
@media (max-width: 1180px) {
  .nav, .header-cta { display: none; }
  .menu-btn { display: grid; }
}
@media (max-width: 1100px) {
  .hero-in { grid-template-columns: minmax(0, 1fr); }
  h1 { font-size: clamp(2.4rem, 8vw, 4.6rem); }
  .hero-body { max-width: 60ch; }
  .marks { grid-template-columns: repeat(3, auto); justify-content: start; gap: 10px 26px; }
  .pipe { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px 22px; padding-top: 0; }
  .pipe::before, .pipe::after { display: none; }
  .node { position: static; display: block; margin-bottom: 16px; }
  .also { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .also p { grid-column: 1 / -1; border-bottom: 1px solid var(--line); }
  .also a:nth-of-type(odd) { border-left: 0; }
  .also a:nth-of-type(-n + 2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 900px) {
  .head, .tour, .panel-body, .duo, .faq, .begin-in { grid-template-columns: minmax(0, 1fr); }
  .aside { justify-self: start; }
  .trio { grid-template-columns: minmax(0, 1fr); }
  .matrix { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .matrix .is-core { grid-column: 1 / -1; min-height: 110px; order: -1; }
  .tour-hint { display: none; }
  .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
  .marks { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  :root { --hud-cut: 12px; }
  h1 { font-size: min(10vw, 3rem); }
  .util-in > span:first-child { display: none; }
  .util-in, .util-r { justify-content: center; }
  .hero-actions .btn, .begin-side .btn { width: 100%; }
  .surface { grid-template-columns: minmax(0, 1fr); min-height: 0; padding: 20px 16px 16px; }
  .term-tabs button { flex-direction: column; gap: 2px; min-height: 60px; padding: 6px 4px; letter-spacing: 0.02em; line-height: 1.3; text-align: center; }
  .term-chart { margin: 0 16px; }
  .term-chart svg { height: 86px; }
  .term-bar, .panel-bar { padding-left: 20px; }
  .panel-body { padding: 16px; }
  .brief div, .order div { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .flow li { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .ctls em { margin-left: 0; flex-basis: 100%; }
  .notes, .quad, .pipe { grid-template-columns: minmax(0, 1fr); }
  .notes { gap: 18px; }
  .mod { padding: 24px 20px; gap: 6px 16px; }
  .mod .num { font-size: 2.2rem; }
  .also { grid-template-columns: minmax(0, 1fr); }
  .also a { border-left: 0; border-bottom: 1px solid var(--line); }
  .also a:last-child { border-bottom: 0; }
  .matrix li { min-height: 128px; padding: 16px 14px; }
  .index thead { display: none; }
  .index tr { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 6px 10px; padding: 16px 0; border-bottom: 1px solid var(--line); }
  .index th, .index td { padding: 0; border: 0; }
  .index td:first-child { width: auto; padding-top: 6px; }
  .index tbody th { white-space: normal; }
  .index td:nth-child(n + 3) { grid-column: 2; }
  .side-card { padding: 26px 20px; }
  .absent { padding: 20px 18px; }
  .faq-list details p { padding-left: 18px; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .switch { right: 10px; bottom: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .term-progress, .scan, .pipe::after { display: none; }
  .c-line { stroke-dashoffset: 0; }
}