/* Gram cu Gram · site v2. Tokens follow landing/public/home.css (paper, gold, gold-hi, hairlines). */
:root {
  --bg: #060605; --bg2: #0a0a08; --paper: #f2efe6; --white: #fffdf6;
  --muted: rgba(242, 239, 230, .6); --dim: rgba(242, 239, 230, .32); --faint: rgba(242, 239, 230, .12); --line: rgba(242, 239, 230, .09);
  --gold: #e7ba50; --gold-hi: #f7de92; --gold-deep: #b8892a; --glow: rgba(231, 186, 80, .28);
  --display: 'Manrope', system-ui, sans-serif; --mono: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, monospace;
  --pad: clamp(20px, 5vw, 72px); --sec: clamp(96px, 14vw, 180px);
  --ease: cubic-bezier(.22, 1, .36, 1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { background: var(--bg); color: var(--paper); -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
body { font: 400 17px/1.6 var(--display); background: radial-gradient(1200px 800px at 80% -10%, rgba(231, 186, 80, .07), transparent 60%), radial-gradient(900px 700px at -10% 30%, rgba(231, 186, 80, .03), transparent 60%), var(--bg); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
em { font-style: italic; font-weight: inherit; color: var(--gold-hi); text-shadow: 0 0 .6em var(--glow); }
::selection { background: var(--gold); color: #1a1406; }

/* film grain + progress */
.grain-overlay { position: fixed; inset: -50%; z-index: 60; pointer-events: none; opacity: .045; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>"); animation: grain 1s steps(6) infinite; }
@keyframes grain { 0% { transform: translate(0, 0) } 20% { transform: translate(-3%, 2%) } 40% { transform: translate(2%, -4%) } 60% { transform: translate(-4%, -1%) } 80% { transform: translate(3%, 3%) } 100% { transform: translate(0, 0) } }
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 70; }
.progress span { display: block; height: 100%; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--gold-deep), var(--gold-hi)); box-shadow: 0 0 12px var(--gold); }

/* the 3D canvas sits behind everything */
#gold { position: fixed; inset: 0; width: 100vw; height: 100svh; z-index: 0; pointer-events: none; transition: opacity .6s var(--ease); will-change: transform; -webkit-mask-image: linear-gradient(to bottom, #000 86%, transparent); mask-image: linear-gradient(to bottom, #000 86%, transparent); }
.gold-fallback { display: none; position: fixed; right: 4vw; top: 16vh; width: min(520px, 42vw); z-index: 0; pointer-events: none; }
.no-webgl #gold { display: none; }
.no-webgl .gold-fallback { display: block; }
main, .foot, .nav { position: relative; z-index: 2; }

/* nav */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px var(--pad); transition: background .4s, backdrop-filter .4s, padding .4s; }
.nav.solid { background: rgba(6, 6, 5, .78); backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%); border-bottom: 1px solid var(--line); padding-block: 12px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 30px; width: auto; }
.brand .word { height: 17px; }
.links { display: flex; gap: clamp(16px, 2.4vw, 34px); font: 500 11px/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.links a { position: relative; padding: 6px 0; transition: color .3s; }
.links a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--gold); transform: scaleX(0); transform-origin: 0 50%; transition: transform .4s var(--ease); }
.links a:hover, .links a.on { color: var(--paper); }
.links a:hover::after, .links a.on::after { transform: scaleX(1); }
.nav-right { display: flex; align-items: center; gap: 18px; font: 500 11px/1 var(--mono); letter-spacing: .16em; }
.lang { display: flex; gap: 8px; color: var(--dim); }
.lang button { color: var(--dim); letter-spacing: inherit; font: inherit; }
.lang button.on { color: var(--gold-hi); }

/* type */
.kicker { display: flex; align-items: center; gap: 12px; font: 500 11px/1.4 var(--mono); letter-spacing: .22em; text-transform: uppercase; color: var(--muted); }
.kicker i { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 10px var(--gold); flex: none; }
.kicker.center { justify-content: center; }
.display { font-weight: 200; font-size: clamp(46px, 7.4vw, 120px); line-height: .98; letter-spacing: -.055em; color: var(--white); text-wrap: balance; }
.display.huge { font-size: clamp(52px, 9.5vw, 168px); }
.lede { font-size: clamp(17px, 1.35vw, 20px); line-height: 1.6; color: var(--muted); max-width: 34em; font-weight: 300; }
.split .w { display: inline-block; overflow: hidden; vertical-align: top; padding: 0 .1em .08em 0; margin: 0 -.1em -.08em 0; } /* room for italic overhang */
.split .w > span { display: inline-block; will-change: transform; }
.split.landed .w { overflow: visible; } /* let the gold glow breathe once the words have landed */

.sec-head { display: grid; gap: 28px; margin-bottom: clamp(48px, 7vw, 96px); }
.sec-head.center { text-align: center; justify-items: center; }
section { padding: var(--sec) var(--pad); }

/* buttons + stores */
.cta { display: inline-flex; align-items: center; gap: 16px; padding: 18px 26px; border: 1px solid rgba(231, 186, 80, .55); background: rgba(231, 186, 80, .08); font: 500 12px/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--gold-hi); position: relative; overflow: hidden; transition: color .4s, border-color .4s; }
.cta::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, var(--gold-deep), var(--gold), var(--gold-hi)); transform: translateY(101%); transition: transform .5s var(--ease); z-index: -1; }
.cta:hover { color: #1a1406; border-color: var(--gold); }
.cta:hover::before { transform: none; }
.cta b { font-weight: 400; transition: transform .4s var(--ease); }
.cta:hover b { transform: translateY(3px); }
.stores { display: flex; gap: 10px; flex-wrap: wrap; }
.stores.center { justify-content: center; }
.store { display: grid; gap: 2px; padding: 11px 18px; border: 1px solid var(--line); font: 500 15px/1.2 var(--display); color: var(--paper); background: rgba(255, 255, 255, .02); }
.store small { font: 500 9px/1 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }

/* 01 hero */
.hero { min-height: 100svh; display: grid; align-content: center; position: relative; padding-top: 140px; padding-bottom: 150px; }
.hero-copy { max-width: 760px; display: grid; gap: 30px; position: relative; z-index: 2; }
.hero .display { font-size: clamp(56px, 8.4vw, 138px); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; margin-top: 10px; }
.hud { position: absolute; right: var(--pad); bottom: 110px; width: 280px; padding: 18px 20px; border: 1px solid var(--line); background: rgba(8, 8, 7, .6); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-family: var(--mono); z-index: 2; }
.hud-row { display: flex; justify-content: space-between; font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.hud-sim { color: var(--gold); }
.hud-val { margin: 10px 0 12px; font-size: 40px; font-weight: 300; letter-spacing: -.02em; color: var(--gold-hi); text-shadow: 0 0 22px var(--glow); font-variant-numeric: tabular-nums; }
.hud-val small { font-size: 16px; color: var(--muted); }
.hud-bar { height: 2px; background: var(--line); }
.hud-bar span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--gold-deep), var(--gold-hi)); box-shadow: 0 0 10px var(--gold); transition: width .3s; }
.hud-scale { margin-top: 4px; color: rgba(231, 186, 80, .6); }
.hud-foot { margin-top: 10px; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.band { position: absolute; left: 0; right: 0; bottom: 36px; border-block: 1px solid var(--line); overflow: hidden; padding: 12px 0; mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.band-track { display: flex; gap: 48px; white-space: nowrap; width: max-content; font: 400 11px/1 var(--mono); letter-spacing: .16em; color: rgba(231, 186, 80, .55); animation: band 60s linear infinite; }
.band-track b { color: var(--gold-hi); font-weight: 400; }
@keyframes band { to { transform: translateX(-50%); } }
.scroll-cue { position: absolute; left: 50%; bottom: 96px; width: 1px; height: 46px; background: var(--line); overflow: hidden; }
.scroll-cue span { position: absolute; left: 0; width: 1px; height: 40%; background: var(--gold); animation: cue 2s var(--ease) infinite; }
@keyframes cue { from { top: -40%; } to { top: 100%; } }

/* 02 mechanism */
.mech { padding: 0; height: 330vh; position: relative; }
.mech-pin { position: sticky; top: 0; height: 100svh; display: grid; grid-template-columns: minmax(300px, 1fr) minmax(320px, 400px) 1.05fr; align-items: center; gap: clamp(24px, 4vw, 64px); padding: 110px var(--pad) 60px; }
.mech-copy { display: grid; gap: 34px; }
.steps { list-style: none; display: grid; gap: 6px; }
.step { display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 16px 0; border-top: 1px solid var(--line); opacity: .28; transition: opacity .5s var(--ease); }
.step .n { font: 500 11px/2.2 var(--mono); letter-spacing: .18em; color: var(--gold); }
.step h3 { font-weight: 300; font-size: clamp(22px, 2vw, 30px); letter-spacing: -.03em; line-height: 1.15; color: var(--white); }
.step p { color: var(--muted); font-size: 15px; font-weight: 300; max-height: 0; overflow: hidden; transition: max-height .6s var(--ease), margin .6s var(--ease); }
.step.on { opacity: 1; }
.step.on p { max-height: 5em; margin-top: 8px; }
.receipt { position: relative; padding: 26px 26px 22px; border: 1px solid var(--line); background: linear-gradient(180deg, rgba(24, 21, 14, .92), rgba(14, 12, 8, .92)); box-shadow: 0 40px 120px rgba(0, 0, 0, .6); font-family: var(--mono); }
.receipt::before { content: ''; position: absolute; inset: -1px; border: 1px solid transparent; background: linear-gradient(140deg, rgba(247, 222, 146, .5), transparent 40%, transparent 70%, rgba(231, 186, 80, .35)) border-box; -webkit-mask: linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; }
.r-head { display: flex; justify-content: space-between; font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--dim); }
.r-amount { margin-top: 18px; font-size: clamp(44px, 4vw, 60px); font-weight: 300; letter-spacing: -.03em; color: var(--white); font-variant-numeric: tabular-nums; }
.r-amount small { font-size: 16px; margin-left: 8px; color: var(--muted); letter-spacing: .1em; }
.r-merchant { font-size: 11px; letter-spacing: .14em; color: var(--dim); text-transform: uppercase; }
.r-rules { display: grid; gap: 8px; margin: 22px 0 18px; }
.r-rule { display: grid; grid-template-columns: 34px 1fr auto; padding: 10px 12px; border: 1px solid var(--line); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); transition: all .5s var(--ease); }
.r-rule.on { border-color: var(--gold); color: var(--gold-hi); background: rgba(231, 186, 80, .08); box-shadow: 0 0 30px rgba(231, 186, 80, .12); }
.r-price { display: flex; justify-content: space-between; align-items: baseline; padding: 12px 0; border-block: 1px solid var(--line); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); opacity: .3; transition: opacity .5s; }
.r-price b { color: var(--paper); font-weight: 400; font-size: 15px; letter-spacing: .04em; }
.r-price small { font-size: 10px; color: var(--dim); }
.r-price.on { opacity: 1; }
.r-gold { display: flex; align-items: center; gap: 16px; margin-top: 18px; opacity: .3; transition: opacity .5s; }
.r-gold img { width: 58px; height: 58px; object-fit: cover; border-radius: 10px; mix-blend-mode: screen; filter: drop-shadow(0 0 14px rgba(231, 186, 80, .6)); }
.r-gold b { font-size: 38px; font-weight: 300; color: var(--gold-hi); text-shadow: 0 0 20px var(--glow); font-variant-numeric: tabular-nums; }
.r-gold small { color: var(--muted); font-size: 14px; }
.r-gold span { display: block; font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--dim); }
.r-gold.on { opacity: 1; }
.receipt.flash { animation: flash 1s var(--ease); }
@keyframes flash { 30% { box-shadow: 0 0 0 1px var(--gold), 0 0 90px rgba(231, 186, 80, .45), 0 40px 120px rgba(0, 0, 0, .6); } }

/* 03 interlude */
.interlude { text-align: center; display: grid; justify-items: center; gap: 34px; padding-bottom: 60px; background: linear-gradient(180deg, transparent, var(--bg) 18%); }
.interlude-art { width: min(1100px, 100%); margin-top: 20px; filter: saturate(1.1) brightness(1.05); mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent); }

/* 04 calculator */
.calc, .family, .physical, .trust, .faq { background: var(--bg); }
.calc-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(28px, 5vw, 80px); align-items: start; }
.calc-in { display: grid; gap: 36px; }
.field { display: grid; gap: 16px; }
.field > span { display: flex; justify-content: space-between; align-items: baseline; font: 500 11px/1.3 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.field > span b { font: 300 30px/1 var(--display); letter-spacing: -.02em; color: var(--white); text-transform: none; font-variant-numeric: tabular-nums; }
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 30px; background: transparent; cursor: pointer; --p: 50%; }
input[type=range]::-webkit-slider-runnable-track { height: 2px; background: linear-gradient(90deg, var(--gold) var(--p), var(--line) var(--p)); }
input[type=range]::-moz-range-track { height: 2px; background: linear-gradient(90deg, var(--gold) var(--p), var(--line) var(--p)); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; margin-top: -10px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #fff6d8, var(--gold) 45%, var(--gold-deep)); box-shadow: 0 0 0 6px rgba(231, 186, 80, .12), 0 0 20px rgba(231, 186, 80, .5); transition: box-shadow .3s; }
input[type=range]::-moz-range-thumb { width: 22px; height: 22px; border: 0; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #fff6d8, var(--gold) 45%, var(--gold-deep)); box-shadow: 0 0 0 6px rgba(231, 186, 80, .12), 0 0 20px rgba(231, 186, 80, .5); }
input[type=range]:active::-webkit-slider-thumb { box-shadow: 0 0 0 10px rgba(231, 186, 80, .18), 0 0 30px rgba(231, 186, 80, .7); }
input[type=range]:focus-visible { outline: 1px dashed var(--gold); outline-offset: 6px; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.seg button { display: grid; gap: 4px; padding: 16px 14px; text-align: left; border-left: 1px solid var(--line); transition: background .4s, color .4s; color: var(--muted); }
.seg button:first-child { border-left: 0; }
.seg button b { font: 400 18px/1 var(--display); color: var(--paper); letter-spacing: -.01em; }
.seg button small { font: 500 9px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.seg button.on { background: rgba(231, 186, 80, .1); box-shadow: inset 0 0 0 1px var(--gold); }
.seg button.on b { color: var(--gold-hi); }
.fine { font: 400 11px/1.6 var(--mono); letter-spacing: .04em; color: var(--dim); max-width: 46em; }
.calc-out { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.calc-out > * { background: var(--bg); padding: clamp(22px, 2.6vw, 34px); }
.big { display: grid; gap: 14px; }
.big small { font: 500 10px/1.3 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.big b { font-weight: 200; font-size: clamp(46px, 5vw, 78px); letter-spacing: -.05em; line-height: 1; color: var(--white); font-variant-numeric: tabular-nums; }
.big b i { font-style: normal; font-size: .36em; letter-spacing: 0; color: var(--muted); }
.big.gold b { color: var(--gold-hi); text-shadow: 0 0 30px var(--glow); }
.ingot-meter { grid-column: 1 / -1; display: grid; gap: 18px; }
.im-head, .im-foot { display: flex; justify-content: space-between; align-items: baseline; font: 500 10px/1.3 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.im-head b, .im-foot b { font: 300 26px/1 var(--display); letter-spacing: -.02em; text-transform: none; color: var(--paper); }
.im-bars { display: grid; grid-template-columns: repeat(12, 1fr); gap: 6px; height: 120px; align-items: end; }
.im-bars .mo { position: relative; height: 100%; display: flex; align-items: flex-end; border-bottom: 1px solid var(--line); }
.im-bars .mo span { display: block; width: 100%; background: linear-gradient(180deg, var(--gold-hi), var(--gold) 45%, var(--gold-deep)); box-shadow: 0 0 16px rgba(231, 186, 80, .3); transition: height .7s var(--ease); border-radius: 2px 2px 0 0; }
.im-bars .mo.bar-done::after { content: '2 g'; position: absolute; top: -18px; left: 50%; transform: translateX(-50%); font: 500 9px/1 var(--mono); letter-spacing: .1em; color: var(--gold-hi); }
.im-bars .mo small { position: absolute; bottom: -20px; left: 0; right: 0; text-align: center; font: 500 9px/1 var(--mono); color: var(--dim); }
.im-bars .line2g { position: absolute; }

/* 05 family */
.fam-grid { display: grid; grid-template-columns: 1.25fr .9fr; gap: clamp(28px, 5vw, 80px); align-items: start; }
.fam-table { border: 1px solid var(--line); background: rgba(20, 18, 12, .6); }
.ft-head { display: flex; justify-content: space-between; padding: 18px 26px; border-bottom: 1px solid var(--line); font: 500 10px/1.3 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.ft-head b { color: var(--gold); font-weight: 500; }
.ft-row { display: grid; grid-template-columns: 52px 1fr minmax(120px, 1.1fr) 70px; align-items: center; gap: 18px; padding: 22px 26px; border-bottom: 1px solid var(--line); }
.av { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; border: 1px solid rgba(231, 186, 80, .5); font-size: 20px; color: var(--gold-hi); font-weight: 300; }
.who { display: grid; gap: 4px; justify-items: start; }
.who b { font-weight: 400; font-size: 22px; letter-spacing: -.02em; color: var(--white); }
.who small { font: 500 10px/1.3 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--dim); }
.pct { font: 300 28px/1 var(--display); text-align: right; color: var(--gold-hi); font-variant-numeric: tabular-nums; }
.lock { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; padding: 6px 10px; border: 1px solid var(--line); font: 500 9px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--dim); transition: all .4s var(--ease); }
.lock svg { width: 11px; height: 13px; fill: currentColor; }
.lock svg .shackle { fill: none; stroke: currentColor; stroke-width: 1.4; transition: transform .4s var(--ease); transform-origin: 9px 6px; transform: rotate(35deg) translateY(-1px); }
.lock.on { color: var(--gold-hi); border-color: rgba(231, 186, 80, .6); background: rgba(231, 186, 80, .08); }
.lock.on svg .shackle { transform: none; }
.rest-bar { height: 2px; background: var(--line); }
.rest-bar span { display: block; height: 100%; background: var(--paper); opacity: .6; transition: width .3s; }
.ft-split { display: flex; height: 6px; }
.ft-split span { transition: flex-grow .4s var(--ease); }
.ft-split [data-seg="0"] { background: var(--gold-hi); } .ft-split [data-seg="1"] { background: var(--gold); } .ft-split [data-seg="2"] { background: rgba(242, 239, 230, .25); }
.fam-side { display: grid; gap: 34px; }
.portal { border: 1px solid rgba(231, 186, 80, .35); background: radial-gradient(420px 220px at 80% 0%, rgba(231, 186, 80, .14), transparent 70%), rgba(20, 18, 12, .7); }
.portal-head { padding: 14px 20px; border-bottom: 1px solid var(--line); font: 500 10px/1.3 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--gold); }
.portal-body { padding: 26px 20px 24px; display: grid; gap: 10px; }
.portal-body small { color: var(--muted); font-size: 14px; }
.portal-body b { font-weight: 200; font-size: 64px; letter-spacing: -.05em; line-height: 1; color: var(--gold-hi); text-shadow: 0 0 30px var(--glow); font-variant-numeric: tabular-nums; }
.portal-note { font: 500 10px/1.4 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.ticks { list-style: none; display: grid; gap: 16px; }
.ticks li { position: relative; padding-left: 28px; color: var(--muted); font-weight: 300; }
.ticks li::before { content: ''; position: absolute; left: 0; top: .72em; width: 14px; height: 1px; background: var(--gold); }

/* 06 physical */
.chain { display: flex; justify-content: center; align-items: center; margin: 0 auto clamp(56px, 8vw, 110px); max-width: 1100px; }
.node { flex: none; width: clamp(96px, 11vw, 150px); aspect-ratio: 1; border-radius: 50%; display: grid; place-content: center; text-align: center; gap: 6px; border: 1px solid rgba(231, 186, 80, .2); background: radial-gradient(circle, rgba(40, 32, 14, .9), rgba(12, 11, 8, .9)); transition: all .6s var(--ease); }
.node small { font: 500 9px/1 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.node b { font-weight: 400; font-size: clamp(15px, 1.6vw, 22px); color: var(--paper); }
.node.lit { border-color: rgba(231, 186, 80, .8); box-shadow: 0 0 50px rgba(231, 186, 80, .25), inset 0 0 30px rgba(231, 186, 80, .1); }
.node.lit b { color: var(--gold-hi); }
.chain .link { flex: 1; height: 1px; background: var(--line); position: relative; overflow: hidden; min-width: 12px; }
.chain .link i { position: absolute; inset: 0; background: linear-gradient(90deg, var(--gold-deep), var(--gold-hi)); transform: scaleX(0); transform-origin: 0 50%; transition: transform .6s var(--ease); }
.chain .link.lit i { transform: none; }
.bars { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(14px, 2vw, 28px); max-width: 1200px; margin: 0 auto; perspective: 1200px; }
.barcard { border: 1px solid var(--line); background: rgba(20, 18, 12, .7); transition: transform .5s var(--ease), border-color .5s; transform-style: preserve-3d; }
.barcard .ph { position: relative; overflow: hidden; }
.barcard .ph img { width: 100%; transition: transform .8s var(--ease); }
.barcard .sheen { position: absolute; inset: 0; background: linear-gradient(110deg, transparent 35%, rgba(255, 240, 200, .22) 48%, transparent 60%); transform: translateX(-120%); transition: transform 1.2s var(--ease); }
.barcard:hover { border-color: rgba(231, 186, 80, .55); }
.barcard:hover .sheen { transform: translateX(120%); }
.barcard:hover .ph img { transform: scale(1.04); }
.barcard figcaption { display: flex; justify-content: space-between; align-items: baseline; padding: 18px 22px; }
.barcard figcaption b { font-weight: 200; font-size: 44px; letter-spacing: -.04em; color: var(--white); }
.barcard figcaption span { font: 500 10px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); text-align: right; }
.specs { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1200px; margin: clamp(40px, 6vw, 80px) auto 0; border-top: 1px solid var(--line); }
.specs > div { padding: 22px 0; display: grid; gap: 8px; }
.specs small { font: 500 10px/1.3 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.specs b { font-weight: 300; font-size: clamp(18px, 1.6vw, 24px); color: var(--paper); letter-spacing: -.01em; }

/* 07 trust */
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.trust-grid article { padding: 34px 28px 10px 0; display: grid; gap: 14px; align-content: start; border-right: 1px solid var(--line); padding-left: 28px; }
.trust-grid article:first-child { padding-left: 0; }
.trust-grid article:last-child { border-right: 0; }
.ix { font: 500 11px/1 var(--mono); letter-spacing: .2em; color: var(--gold); }
.trust-grid h3 { font-weight: 300; font-size: 24px; letter-spacing: -.03em; line-height: 1.15; color: var(--white); }
.trust-grid p { color: var(--muted); font-weight: 300; font-size: 15px; }

/* 08 faq */
.faq-list { border-top: 1px solid var(--line); max-width: 1100px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 28px 0; font-weight: 300; font-size: clamp(20px, 2.2vw, 30px); letter-spacing: -.03em; color: var(--white); transition: color .3s; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: ''; flex: none; width: 14px; height: 14px; background: linear-gradient(var(--gold), var(--gold)) center/100% 1px no-repeat, linear-gradient(var(--gold), var(--gold)) center/1px 100% no-repeat; transition: transform .4s var(--ease); }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list summary:hover { color: var(--gold-hi); }
.faq-list details p { padding: 0 0 30px; max-width: 46em; color: var(--muted); font-weight: 300; font-size: 17px; }

/* 09 finale */
.finale { min-height: 100svh; display: grid; align-content: start; justify-items: center; gap: 30px; text-align: center; padding-top: clamp(96px, 11vw, 150px); background: linear-gradient(180deg, var(--bg), transparent 30%); }
.finale .display { max-width: 20ch; font-size: clamp(40px, 5.6vw, 92px); }
.finale .display em { display: block; margin-top: .12em; }

/* footer */
.foot { padding: 60px var(--pad) 40px; border-top: 1px solid var(--line); background: var(--bg); display: grid; gap: 34px; }
.foot-top { display: flex; justify-content: space-between; gap: 30px; align-items: center; flex-wrap: wrap; }
.foot-top p { color: var(--dim); max-width: 34em; font-size: 14px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 14px 30px; font: 500 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.foot-links a:hover { color: var(--gold-hi); }
.legal { font: 400 11px/1.6 var(--mono); color: var(--dim); letter-spacing: .04em; }

/* reveal (JS sets .in) */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* menu button + full-screen menu (below 1100px) */
.menu-btn { display: none; width: 38px; height: 38px; position: relative; border: 1px solid var(--line); }
.menu-btn i { position: absolute; left: 10px; right: 10px; height: 1px; background: var(--paper); transition: transform .4s var(--ease), top .4s var(--ease); }
.menu-btn i:first-child { top: 15px; } .menu-btn i:last-child { top: 22px; }
.nav.open .menu-btn i:first-child { top: 18px; transform: rotate(45deg); }
.nav.open .menu-btn i:last-child { top: 18px; transform: rotate(-45deg); }

/* responsive */
@media (max-width: 1100px) {
  .menu-btn { display: block; }
  .links { position: fixed; inset: 0; z-index: -1; display: flex; flex-direction: column; justify-content: center; gap: 6px; padding: 90px var(--pad) 40px; background: rgba(6, 6, 5, .97); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); opacity: 0; visibility: hidden; transition: opacity .45s var(--ease), visibility .45s; font: 200 clamp(34px, 9vw, 56px)/1.1 var(--display); letter-spacing: -.04em; text-transform: none; color: var(--paper); }
  .links a { padding: 10px 0; border-bottom: 1px solid var(--line); transform: translateY(14px); transition: transform .6s var(--ease), color .3s; }
  .links a::after { display: none; }
  .links a.on { color: var(--gold-hi); }
  .nav.open .links { opacity: 1; visibility: visible; }
  .nav.open .links a { transform: none; }
  .nav.open { background: transparent; backdrop-filter: none; border-color: transparent; }
  .mech-pin { grid-template-columns: 1fr 1fr; grid-template-rows: auto 1fr; align-content: start; padding-top: 100px; }
  .mech-copy { grid-column: 1 / -1; }
  .receipt { grid-column: 1; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid article:nth-child(2) { border-right: 0; }
  .trust-grid article:nth-child(3) { padding-left: 0; }
  .trust-grid article { border-bottom: 1px solid var(--line); padding-bottom: 30px; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav { padding-block: 14px; }
  .hero { align-content: start; padding-top: 120px; padding-bottom: 60vh; }
  .hud { left: var(--pad); right: var(--pad); width: auto; bottom: 88px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; }
  .hud-row { flex-direction: column; gap: 4px; }
  .hud-val { margin: 0; font-size: 26px; }
  .hud-bar, .hud-foot { display: none; }
  .nav-right { gap: 12px; }
  .brand .word { height: 14px; }
  .brand img { height: 26px; }
  .scroll-cue { display: none; }
  .mech { height: 360vh; }
  .mech-pin { grid-template-columns: 1fr; gap: 18px; padding-top: 86px; }
  .step:not(.on) { display: none; }
  .step { border-top: 0; padding: 0; }
  .receipt { padding: 18px; }
  .r-amount { font-size: 38px; margin-top: 10px; }
  .r-rules { margin: 12px 0 10px; gap: 5px; }
  .r-rule { padding: 7px 10px; }
  .r-gold b { font-size: 28px; }
  .calc-grid, .fam-grid { grid-template-columns: 1fr; }
  .seg button { padding: 12px 10px; }
  .ft-row { grid-template-columns: 44px 1fr 60px; }
  .ft-row input, .ft-row .rest-bar { grid-column: 1 / -1; grid-row: 2; }
  .av { width: 44px; height: 44px; }
  .chain { transform: scale(.9); }
  .chain .node b { font-size: 12px; }
  .bars { grid-template-columns: 1fr; max-width: 420px; }
  .specs { grid-template-columns: 1fr 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-grid article { border-right: 0; padding-left: 0; }
  .finale { min-height: 100svh; padding-top: 90px; }
}
@media (prefers-reduced-motion: reduce) {
  .grain-overlay, .band-track, .scroll-cue span { animation: none; }
  .reveal { opacity: 1; transform: none; }
}