:root{
  --bg:#f6f7f9; --bg-2:#eef1f5;
  --fg:#0f1a33; --fg-2:#41506c; --fg-mute:#6f7a92;
  --accent:#a97f2e; --accent-2:#c69a44;
  --hair:#e2e6ec; --hair-strong:#d6dbe4;
  --card:#ffffff; --card-hair:#e4e8ee;
  --shadow:0 1px 2px rgba(15,26,51,.05),0 10px 28px rgba(15,26,51,.06);
  --mid:#0b1e40; --mid-2:#0e2650; --mid-deep:#06122a;
  --serif:'Libre Baskerville',Georgia,serif;
  --sans:'Libre Franklin',-apple-system,system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --maxw:1140px;
}
.dark{
  --fg:#e9eefb; --fg-2:rgba(233,238,251,0.78); --fg-mute:rgba(233,238,251,0.60);
  --accent:#d9b874; --accent-2:#d9b874;
  --hair:rgba(233,238,251,0.10); --hair-strong:rgba(217,184,116,0.22);
  --card:#0e2650; --card-hair:rgba(217,184,116,0.20);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;line-height:1.5;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
::selection{background:var(--accent-2);color:#fff}

/* ── MOBILE-FIRST BASE ─────────────────────────────────────────────── */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px;width:100%}
.eyebrow{font-family:var(--mono);font-size:10.5px;font-weight:500;letter-spacing:0.22em;text-transform:uppercase}

/* Nav — hamburger by default */
.nav{position:absolute;top:0;left:0;right:0;z-index:40}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;max-width:var(--maxw);margin:0 auto;gap:12px}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);min-height:44px}
.brand svg{width:26px;height:26px;flex:none}
.brand-name{font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:0.02em}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;margin-right:-8px;background:none;border:0;color:var(--fg);cursor:pointer}
.nav-toggle svg{width:24px;height:24px;stroke:currentColor;stroke-width:1.8;fill:none}
.nav-links{position:absolute;top:100%;left:12px;right:12px;background:var(--mid-2);border:1px solid var(--hair-strong);border-radius:10px;box-shadow:0 20px 50px rgba(3,8,20,.4);flex-direction:column;padding:8px;gap:0;display:none}
.nav-links.open{display:flex}
.nav-links a{display:flex;align-items:center;min-height:48px;padding:0 14px;font-size:15px;font-weight:600;color:rgba(233,238,251,0.82);border-radius:6px;transition:background .15s}
.nav-links a:hover,.nav-links a:active{background:rgba(233,238,251,0.06);color:#fff}
.nav-cta{margin-top:6px;justify-content:center;color:#06122a!important;background:var(--accent-2);font-weight:700}
.nav-cta:hover{background:var(--accent)!important;color:#06122a!important}

/* Hero */
.hero{position:relative;overflow:hidden;padding:104px 0 64px;background:linear-gradient(180deg,#06122a 0%,#0b1e40 56%,#0f2a54 100%)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(140% 90% at 50% 0%,transparent 42%,rgba(3,8,20,0.55) 100%);pointer-events:none}
#guilloche{position:absolute;top:50%;left:50%;transform:translate(-50%,-52%);width:820px;height:820px;max-width:none;opacity:.42;pointer-events:none}
.hero-inner{position:relative;z-index:2;text-align:center}
.hero-eyebrow{color:var(--accent);margin-bottom:22px}
.hero h1{font-family:var(--serif);font-weight:700;font-size:clamp(31px,8.4vw,74px);line-height:1.06;letter-spacing:-0.015em;margin:0 auto;max-width:15ch;color:var(--fg)}
.hero h1 em{font-style:italic;color:var(--accent)}
.hero-sub{margin:20px auto 0;max-width:60ch;font-size:15px;line-height:1.6;color:var(--fg-2)}
.hero-ctas{display:flex;flex-direction:column;gap:10px;justify-content:center;margin-top:30px}
.btn-gold{display:inline-flex;align-items:center;justify-content:center;min-height:50px;font-size:15px;font-weight:700;color:#06122a;background:var(--accent-2);padding:0 26px;border-radius:3px;border:1px solid var(--accent-2);transition:transform .15s,background .2s}
.btn-gold:hover{background:var(--accent);transform:translateY(-1px)}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:50px;font-size:15px;font-weight:600;color:var(--fg);padding:0 24px;border-radius:3px;border:1px solid rgba(233,238,251,0.24);transition:border-color .2s}
.btn-ghost:hover{border-color:var(--accent)}
.ledger{position:relative;z-index:2;margin:44px auto 0;max-width:820px;display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--hair-strong)}
.ledger div{padding:18px 12px;text-align:center;border-bottom:1px solid var(--hair-strong)}
.ledger div:nth-child(odd){border-right:1px solid var(--hair-strong)}
.ledger .fig{font-family:var(--mono);font-size:19px;font-weight:600;color:var(--accent);letter-spacing:-0.01em}
.ledger .lab{font-size:10px;letter-spacing:0.1em;text-transform:uppercase;color:var(--fg-mute);margin-top:6px;font-weight:600}

/* Sections */
.sec{padding:64px 0;position:relative}
.sec-a{background:var(--bg)}
.sec-b{background:var(--bg-2)}
.sec-mid{background:var(--mid)}
.sec-head{max-width:var(--maxw);margin:0 auto 36px;padding:0 20px}
.sec-eyebrow{color:var(--accent);display:flex;align-items:center;gap:10px;margin-bottom:16px}
.sec-eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}
.sec-head h2{font-family:var(--serif);font-weight:700;font-size:clamp(24px,5.6vw,42px);line-height:1.15;letter-spacing:-0.01em;max-width:20ch;color:var(--fg)}
.sec-head p{margin-top:16px;max-width:62ch;font-size:15px;line-height:1.62;color:var(--fg-2)}

.split{display:grid;grid-template-columns:1fr;gap:28px;align-items:start}
.stat-line{font-family:var(--mono);font-size:13px;color:var(--fg-mute);padding:14px 0;border-bottom:1px solid var(--hair);display:flex;gap:14px;align-items:baseline}
.stat-line b{font-size:17px;color:var(--fg);font-weight:600;min-width:88px}
.answer{font-family:var(--serif);font-size:clamp(18px,4.6vw,25px);line-height:1.45;color:var(--fg)}
.answer em{font-style:italic;color:var(--accent)}

.instruments{display:grid;grid-template-columns:1fr;gap:0;border:1px solid var(--card-hair);border-radius:6px;overflow:hidden;background:var(--card);box-shadow:var(--shadow)}
.inst{padding:30px 24px;border-bottom:1px solid var(--card-hair);transition:background .25s}
.inst:last-child{border-bottom:none}
.inst:active{background:var(--bg)}
.inst-seal{width:40px;height:40px;margin-bottom:18px;color:var(--accent)}
.inst-tag{font-family:var(--mono);font-size:10.5px;letter-spacing:0.14em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}
.inst h3{font-family:var(--serif);font-size:22px;font-weight:700;margin-bottom:10px;color:var(--fg)}
.inst h3 sup{font-size:11px;color:var(--accent);top:-0.9em}
.inst p{font-size:14.5px;line-height:1.6;color:var(--fg-2)}
.inst ul{list-style:none;margin-top:16px}
.inst li{font-size:13px;color:var(--fg-mute);padding:8px 0 8px 18px;position:relative;border-top:1px solid var(--hair)}
.inst li::before{content:"";position:absolute;left:0;top:15px;width:5px;height:5px;background:var(--accent);border-radius:50%}

.steps{display:grid;grid-template-columns:1fr;gap:20px}
.step-n{font-family:var(--mono);font-size:12px;color:var(--accent);font-weight:600;letter-spacing:0.1em}
.step h4{font-family:var(--serif);font-size:18px;font-weight:700;margin:12px 0 8px;padding-top:14px;border-top:1px solid var(--hair-strong);color:var(--fg)}
.step p{font-size:14px;line-height:1.55;color:var(--fg-2)}

.moat-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--hair-strong);border:1px solid var(--hair-strong)}
.moat{background:var(--mid);padding:26px 22px}
.moat .fig{font-family:var(--serif);font-size:22px;color:var(--accent);font-weight:700;margin-bottom:9px}
.moat p{font-size:14px;line-height:1.6;color:var(--fg-2)}

.price-row{display:grid;grid-template-columns:1fr;gap:14px}
.price{border:1px solid var(--card-hair);border-radius:6px;padding:22px 20px;background:var(--card);box-shadow:var(--shadow)}
.price .k{font-family:var(--mono);font-size:10.5px;letter-spacing:0.12em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.price .v{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--fg)}
.price .d{font-size:13px;color:var(--fg-mute);margin-top:8px;line-height:1.5}

.cta-final{background:linear-gradient(180deg,#0b1e40 0%,#06122a 100%);text-align:center;position:relative;overflow:hidden}
.cta-final h2{font-family:var(--serif);font-size:clamp(26px,6.4vw,48px);font-weight:700;line-height:1.12;max-width:18ch;margin:0 auto 14px;letter-spacing:-0.01em;color:var(--fg)}
.cta-final p{color:var(--fg-2);max-width:52ch;margin:0 auto 28px;font-size:15px;line-height:1.6}
.signup{display:flex;flex-direction:column;gap:10px;max-width:480px;margin:0 auto}
.signup input{width:100%;font-family:var(--sans);font-size:16px;min-height:50px;padding:0 16px;border-radius:3px;border:1px solid rgba(233,238,251,0.24);background:rgba(233,238,251,0.06);color:var(--fg)}
.signup input::placeholder{color:var(--fg-mute)}
.signup input:focus{outline:none;border-color:var(--accent)}
.signup button{width:100%;font-family:var(--sans);font-size:15px;font-weight:700;min-height:50px;color:#06122a;background:var(--accent-2);border-radius:3px;border:none;cursor:pointer;transition:background .2s}
.signup button:hover{background:var(--accent)}
.signup-note{font-size:12px;color:var(--fg-mute);margin-top:14px}
.signup-ok{color:var(--accent);font-size:14.5px;font-family:var(--serif);font-style:italic;min-height:22px;margin-top:8px}
.proof{display:inline-flex;align-items:center;gap:10px;margin-top:30px;padding:11px 16px;border:1px solid var(--hair-strong);border-radius:3px;font-size:12.5px;color:var(--fg-2);text-align:left}
.proof b{color:var(--fg);font-weight:600}
.proof .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}

footer{background:var(--mid-deep);color:var(--fg-mute);border-top:1px solid var(--hair-strong);padding:36px 0}
.foot-inner{display:flex;flex-direction:column;align-items:flex-start;gap:16px;font-size:12.5px}
.foot-brand{display:flex;align-items:center;gap:10px;color:var(--fg)}
.foot-brand svg{width:20px;height:20px}
.foot-brand span{font-family:var(--serif);font-weight:700;font-size:15px}
.foot-links{display:flex;gap:22px;flex-wrap:wrap}
footer a{color:var(--fg-mute);transition:color .2s;min-height:32px;display:inline-flex;align-items:center}
footer a:hover{color:var(--accent)}

/* Demos */
.demo-frame{position:relative;width:100%;aspect-ratio:16/9;background:var(--mid);border:1px solid var(--card-hair);border-radius:8px;overflow:hidden;cursor:pointer;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center}
.demo-frame .play{width:58px;height:58px;border-radius:50%;border:1.5px solid var(--accent);display:flex;align-items:center;justify-content:center;transition:transform .2s,background .2s}
.demo-frame:active .play,.demo-frame:hover .play{transform:scale(1.06);background:rgba(217,184,116,0.12)}
.demo-frame .play svg{width:20px;height:20px;margin-left:3px;fill:var(--accent)}
.demo-frame .flabel{position:absolute;left:16px;bottom:14px;right:16px;color:#e9eefb}
.demo-frame .flabel .t{font-family:var(--serif);font-size:16px;font-weight:700}
.demo-frame .flabel .s{font-size:12px;color:rgba(233,238,251,0.66);margin-top:3px}
.demo-frame .badge{position:absolute;top:12px;right:12px;font-family:var(--mono);font-size:9.5px;letter-spacing:0.12em;text-transform:uppercase;color:var(--accent);border:1px solid var(--hair-strong);border-radius:2px;padding:4px 8px;background:rgba(6,18,42,0.5)}
.demo-frame iframe,.demo-frame video{position:absolute;inset:0;width:100%;height:100%;border:0}
.demo-grid{display:grid;grid-template-columns:1fr;gap:20px}
.demo-card h4{font-family:var(--serif);font-size:17px;font-weight:700;margin:15px 0 6px;color:var(--fg)}
.demo-card p{font-size:13.5px;line-height:1.55;color:var(--fg-2)}
.lightbox{position:fixed;inset:0;background:rgba(4,9,20,0.9);display:none;align-items:center;justify-content:center;z-index:100;padding:16px}
.lightbox.open{display:flex}
.lightbox-inner{width:min(1040px,96vw);aspect-ratio:16/9;background:#000;border-radius:8px;overflow:hidden;position:relative;box-shadow:0 30px 90px rgba(0,0,0,.5)}
.lightbox-inner iframe,.lightbox-inner video{width:100%;height:100%;border:0}
.lightbox-close{position:absolute;top:-42px;right:0;color:#e9eefb;font-size:30px;line-height:1;cursor:pointer;width:44px;height:44px;display:flex;align-items:center;justify-content:center}

.reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ── ≥ 620px : two-up grids, roomier ───────────────────────────────── */
@media(min-width:620px){
  .wrap{padding:0 28px}
  .sec-head{padding:0 28px}
  .hero-ctas{flex-direction:row}
  .signup{flex-direction:row}
  .signup input{flex:1}
  .signup button{width:auto;padding:0 24px}
  .ledger{grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--hair-strong)}
  .ledger div{border-bottom:none;border-right:1px solid var(--hair-strong)}
  .ledger div:last-child{border-right:none}
  .ledger div:nth-child(odd){border-right:1px solid var(--hair-strong)}
  .split{grid-template-columns:1fr 1fr;gap:48px}
  .steps{grid-template-columns:repeat(2,1fr);gap:24px}
  .price-row{grid-template-columns:repeat(2,1fr);gap:18px}
  .demo-grid{grid-template-columns:repeat(2,1fr)}
  .foot-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:24px}
}

/* ── ≥ 820px : desktop nav, three-up, full spacing ─────────────────── */
@media(min-width:820px){
  .nav-inner{padding:22px 28px}
  .nav-toggle{display:none}
  .nav-links{position:static;display:flex;flex-direction:row;align-items:center;gap:30px;background:none;border:0;box-shadow:none;padding:0;left:auto;right:auto}
  .nav-links a{min-height:auto;padding:0;font-size:13px;font-weight:500;color:var(--fg-mute);border-radius:0}
  .nav-links a:hover{background:none;color:var(--fg)}
  .nav-cta{margin-top:0;padding:9px 16px!important;border-radius:2px;font-size:12.5px}
  .hero{padding:150px 0 96px}
  #guilloche{width:1180px;height:1180px;opacity:.5;transform:translate(-50%,-54%)}
  .hero h1{font-size:clamp(48px,6.4vw,74px);line-height:1.04}
  .hero-sub{font-size:18px;line-height:1.62;margin-top:26px}
  .sec{padding:104px 0}
  .sec-head{margin-bottom:56px}
  .sec-head h2{font-size:clamp(34px,3.8vw,42px);line-height:1.12}
  .sec-head p{font-size:16px;margin-top:20px}
  .instruments{grid-template-columns:repeat(3,1fr)}
  .inst{border-right:1px solid var(--card-hair);border-bottom:none;padding:38px 34px}
  .inst:last-child{border-right:none}
  .steps{grid-template-columns:repeat(4,1fr);gap:26px}
  .price-row{grid-template-columns:repeat(4,1fr);gap:20px}
  .moat-grid{grid-template-columns:repeat(3,1fr)}
  .demo-grid{grid-template-columns:repeat(3,1fr);gap:22px}
}

/* Legal / doc pages */
.doc-hero{padding:118px 0 52px}
.doc-title{font-family:var(--serif);font-weight:700;font-size:clamp(30px,7vw,50px);line-height:1.06;letter-spacing:-0.015em;color:var(--fg);margin:0 auto}
.doc-wrap{max-width:740px}
.doc-h{font-family:var(--serif);font-weight:700;font-size:19px;color:var(--fg);margin:32px 0 12px}
.doc-h:first-child{margin-top:0}
.doc-p{font-size:15px;line-height:1.72;color:var(--fg-2);margin-bottom:14px}
.doc-p a{color:var(--accent)}
.pricing-cta{margin-top:18px}
@media(min-width:820px){.doc-hero{padding:150px 0 64px}}
.doc-lead{font-size:16px;line-height:1.7;color:var(--fg-2);margin-bottom:26px;padding-bottom:22px;border-bottom:1px solid var(--hair)}