:root{--ink:#102220;--ink2:#173b37;--paper:#f3f7f5;--paper2:#e4efec;--card:#fff;--teal:#0f8a7e;--teal2:#0b6b61;--gold:#e7b53e;--wa:#25d366;--muted:#5d716d;--line:rgba(16,34,32,.14);--shadow:0 18px 48px rgba(16,34,32,.12);--display:'Space Grotesk',system-ui,sans-serif;--body:'Hanken Grotesk',system-ui,sans-serif}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);line-height:1.55;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.wrap{width:min(1140px,calc(100% - 36px));margin:auto}.topbar{background:var(--ink);color:#c8d7d4;font-size:12px}.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding:8px 0;flex-wrap:wrap}.topbar a{color:#fff}.nav{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:rgba(243,247,245,.94);backdrop-filter:blur(12px)}.nav .wrap{height:64px;display:flex;align-items:center;justify-content:space-between;gap:14px}.brand{font-family:var(--display);font-size:21px;font-weight:700;line-height:1;white-space:nowrap}.brand b{color:var(--teal)}.brand small{display:block;margin-top:4px;color:var(--muted);font:500 9px/1 var(--body);letter-spacing:.15em;text-transform:uppercase}.nav-links{display:none;align-items:center;gap:16px}.nav-links a{color:var(--muted);font-size:13px}.nav-links a:hover,.nav-links a.on{color:var(--ink)}.nav-cta{display:none;padding:10px 16px;border-radius:999px;background:var(--wa);color:#062a17;font-size:13px;font-weight:700}.burger{display:flex;flex-direction:column;gap:5px;padding:8px;border:0;background:none}.burger span{width:24px;height:2px;background:var(--ink)}.mobile{display:none;border-bottom:1px solid var(--line);background:var(--paper)}.mobile.open{display:block}.mobile a{display:block;padding:12px 18px;border-top:1px solid var(--line)}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#edf5f2 0%,#dcebe7 100%)}.hero::after{content:"";position:absolute;right:-120px;top:-160px;width:440px;height:440px;border:70px solid rgba(15,138,126,.08);border-radius:50%}.hero .wrap{position:relative;z-index:1;display:grid;gap:34px;padding:58px 0 64px}.eyebrow,.section-eye{display:flex;align-items:center;gap:10px;color:var(--teal2);font-size:11px;font-weight:800;letter-spacing:.18em;text-transform:uppercase}.eyebrow::before,.section-eye::before{content:"";width:28px;height:2px;background:var(--teal)}h1,h2,h3{font-family:var(--display);letter-spacing:-.025em}.hero h1{max-width:720px;margin:16px 0 0;font-size:clamp(38px,7vw,68px);line-height:.98}.hero h1 em{color:var(--teal);font-style:normal}.hero-copy{max-width:650px;margin:20px 0 0;color:var(--muted);font-size:clamp(16px,2vw,19px)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 20px;border:1px solid transparent;border-radius:11px;font:700 14px var(--body);cursor:pointer;transition:.2s}.btn-primary{background:var(--teal);color:#fff}.btn-primary:hover{background:var(--teal2);transform:translateY(-2px)}.btn-outline{border-color:var(--line);background:rgba(255,255,255,.7)}.hero-sheet{align-self:center;position:relative;min-height:270px}.mini-sheet{position:absolute;width:220px;height:150px;padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--card);box-shadow:var(--shadow)}.mini-sheet:first-child{left:8%;top:60px;transform:rotate(-7deg)}.mini-sheet:last-child{right:4%;top:20px;transform:rotate(6deg)}.mini-spread{display:grid;grid-template-columns:1fr 1fr;height:100%;border:2px solid var(--ink);border-radius:8px;overflow:hidden}.mini-spread span{display:grid;place-items:center;font:700 36px var(--display)}.mini-spread span+span{border-left:2px dotted var(--teal)}
.crumb{border-bottom:1px solid var(--line);background:#fff}.crumb .wrap{display:flex;gap:8px;padding:12px 0;color:var(--muted);font-size:13px}.crumb b{color:var(--ink)}main{padding:48px 0 80px}.calculator-grid{display:grid;gap:28px;align-items:start}.panel{border:1px solid var(--line);border-radius:20px;background:var(--card);box-shadow:0 8px 28px rgba(16,34,32,.07)}.controls{padding:24px}.controls h2,.results-head h2{margin:0;font-size:28px}.muted{color:var(--muted)}.field-label{display:block;margin:22px 0 7px;font-size:13px;font-weight:800}.input-row{display:flex;gap:10px}.number-input{min-width:0;width:100%;padding:13px 14px;border:2px solid var(--line);border-radius:11px;background:#fbfdfc;color:var(--ink);font:700 19px var(--body)}.number-input:focus,.name-input:focus,.btn:focus-visible,.preset:focus-visible,.toggle input:focus-visible,.faq summary:focus-visible{outline:3px solid rgba(15,138,126,.28);outline-offset:3px;border-color:var(--teal)}.error{margin:12px 0 0;padding:10px 12px;border:1px solid #efb2ae;border-radius:10px;background:#fff0ef;color:#9c2720;font-size:13px;font-weight:700}.preset-title{margin:20px 0 8px;font-size:13px;font-weight:800}.presets{display:flex;flex-wrap:wrap;gap:7px}.preset{padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:var(--paper);color:var(--ink);font:700 12px var(--body);cursor:pointer}.preset:hover{border-color:var(--teal);color:var(--teal2)}.toggle{display:flex;gap:10px;margin-top:20px;padding:13px;border:1px solid var(--line);border-radius:12px;background:var(--paper)}.toggle input{width:18px;height:18px;margin-top:2px;accent-color:var(--teal)}.toggle b,.toggle span{display:block}.toggle span{color:var(--muted);font-size:12px}.reset{width:100%;margin-top:14px}.name-panel{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}.name-panel h3{margin:0}.name-fields{max-height:390px;margin-top:12px;padding-right:5px;overflow:auto}.name-label{display:block;margin-bottom:10px;color:var(--muted);font-size:12px;font-weight:700}.name-input{display:block;width:100%;margin-top:4px;padding:9px 10px;border:1px solid var(--line);border-radius:8px;font:500 14px var(--body)}[hidden]{display:none!important}
.results{min-width:0}.results-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}.summary{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}.summary-card{padding:15px;border:1px solid var(--line);border-radius:13px;background:var(--card);text-align:center}.summary-card b{display:block;color:var(--teal2);font:700 25px/1 var(--display)}.summary-card span{display:block;margin-top:6px;color:var(--muted);font-size:11px}.actions{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.actions .btn{min-height:40px;padding:9px 13px;border-color:var(--line);background:var(--card)}.actions .btn:last-child{background:var(--ink);color:#fff}.sequence-box{padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--ink);color:#fff}.sequence-box h3{margin:0 0 10px;font-size:18px}.sequence-box pre{margin:0;overflow:auto;color:#d9eee9;font:700 14px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap}.reading{margin:18px 0;padding:15px;border:1px solid var(--line);border-radius:13px;background:var(--paper)}.reading b{display:block;font-size:12px}.reading p{max-height:90px;margin:5px 0 0;overflow:auto;color:var(--muted);font-size:13px}.sheet-grid{display:grid;gap:14px;margin-top:20px}.sheet-card{overflow:hidden;border:1px solid var(--line);border-radius:16px;background:var(--card);box-shadow:0 7px 20px rgba(16,34,32,.06)}.sheet-head{display:flex;align-items:center;justify-content:space-between;padding:13px 15px;background:var(--paper2)}.sheet-head h3{margin:0;font-size:17px}.sheet-type{padding:4px 8px;border-radius:999px;background:#cce8e2;color:var(--teal2);font-size:10px;font-weight:800}.side{padding:14px;border-top:1px solid var(--line)}.side h4{margin:0 0 8px;color:var(--teal2);font-size:11px;letter-spacing:.1em;text-transform:uppercase}.spread{display:grid;grid-template-columns:1fr 1fr;overflow:hidden;border:2px solid #9baca8;border-radius:10px;background:#f8fbfa;text-align:center}.page-box{min-width:0;min-height:100px;padding:14px 8px}.page-box+.page-box{border-left:2px dotted var(--teal)}.page-position{display:block;color:var(--muted);font-size:10px;font-weight:700}.page-number{display:block;margin-top:4px;font:700 32px/1 var(--display)}.page-name{display:block;margin-top:7px;overflow-wrap:anywhere;color:var(--teal2);font-size:11px;font-weight:700}.empty{padding:50px 20px;text-align:center}.warning{margin-top:32px;padding:20px 22px;border:1px solid #e8c778;border-left:5px solid var(--gold);border-radius:14px;background:#fff9e8}.warning h2{margin:0;font-size:20px}.warning p{margin:6px 0 0}
.guide{padding:72px 0;background:#fff}.guide h2{max-width:720px;margin:10px 0 0;font-size:clamp(30px,5vw,44px)}.guide-grid{display:grid;gap:18px;margin-top:34px}.guide-card{padding:22px;border:1px solid var(--line);border-radius:16px;background:var(--paper)}.guide-card h3{margin:0;font-size:20px}.guide-card p{margin:9px 0 0;color:var(--muted)}.guide-card code{color:var(--teal2);font-weight:800}.notes{margin-top:26px;padding:24px;border-radius:18px;background:var(--ink);color:#fff}.notes h3{margin:0}.notes ul{display:grid;gap:7px;margin:14px 0 0;padding-left:20px;color:#d1dfdc}.faq{padding:72px 0}.faq h2{margin:10px 0 28px;font-size:36px}.faq details{border-bottom:1px solid var(--line);background:#fff}.faq details:first-of-type{border-top:1px solid var(--line)}.faq summary{padding:18px 4px;cursor:pointer;font:700 17px var(--display)}.faq details p{max-width:820px;margin:0;padding:0 4px 20px;color:var(--muted)}.cta{padding:54px 0;background:var(--teal2);color:#fff}.cta .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}.cta h2{margin:0;font-size:32px}.cta p{margin:7px 0 0;color:#d6eae6}.cta .btn{background:var(--wa);color:#062a17}.foot{padding:50px 0 0;background:var(--ink);color:#b7c8c5}.foot-grid{display:grid;gap:26px}.foot h4{margin:0 0 10px;color:var(--gold);font-size:11px;letter-spacing:.13em;text-transform:uppercase}.foot a,.foot span{display:block;padding:4px 0;font-size:14px}.foot .brand{color:#fff}.foot-bar{margin-top:38px;padding:18px 0;border-top:1px solid rgba(255,255,255,.12);font-size:12px}.status{position:fixed;z-index:100;right:18px;bottom:18px;max-width:320px;padding:12px 15px;border-radius:10px;background:var(--ink);color:#fff;box-shadow:var(--shadow);font-size:13px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:620px){.nav-cta{display:inline-flex}.hero .wrap{grid-template-columns:1.25fr .75fr}.guide-grid{grid-template-columns:repeat(2,1fr)}.sheet-grid{grid-template-columns:repeat(2,1fr)}.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
@media(min-width:920px){.nav-links{display:flex}.burger{display:none}.calculator-grid{grid-template-columns:360px minmax(0,1fr)}.controls{position:sticky;top:86px}.guide-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:619px){.hero-sheet{display:none}.hero .wrap{padding:44px 0}.input-row{flex-direction:column}.input-row .btn{width:100%}.summary{gap:6px}.summary-card{padding:12px 6px}.actions .btn{flex:1 1 45%}.results-head{display:block}.sheet-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{.topbar,.nav,.mobile,.hero,.crumb,.controls,.actions,.warning,.guide,.faq,.cta,.foot,.status{display:none!important}body,main{background:#fff!important}.wrap{width:100%}.calculator-grid{display:block}.results{display:block!important}.sheet-card{break-inside:avoid;box-shadow:none}.sheet-grid{grid-template-columns:repeat(2,1fr)}.sequence-box{background:#fff;color:#000;border:2px solid #000}.sequence-box pre{color:#000}}