:root{--bg:#07170f;--bg2:#0b2219;--card:#0f2b20;--line:#1f4a37;--txt:#e8f5ee;--mut:#9cbfae;--acc:#7ef0a4;--acc2:#d6ffe3}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--txt);line-height:1.6}
a{color:var(--acc)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;background:var(--acc);color:#000;padding:8px;z-index:9}
header.nav{position:sticky;top:0;z-index:5;background:rgba(7,23,15,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;gap:10px;align-items:center;font-weight:700;color:var(--txt);text-decoration:none}
.nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}.nav ul a{color:var(--mut);text-decoration:none;font-size:.95rem}.nav ul a:hover{color:var(--txt)}
@media(max-width:820px){.nav ul{display:none}}
.btn{display:inline-block;padding:12px 20px;border-radius:10px;font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;font-size:1rem}
.btn.primary{background:var(--acc);color:#05200f}.btn.primary:hover{background:var(--acc2)}
.btn.ghost{border-color:var(--line);color:var(--txt);background:transparent}.btn.ghost:hover{border-color:var(--acc)}
.hero{position:relative;overflow:hidden;padding:96px 0 80px;border-bottom:1px solid var(--line)}
.hero .pitch{position:absolute;inset:0;width:100%;height:100%;opacity:.18;pointer-events:none}
.hero h1{font-size:clamp(2.2rem,5vw,3.8rem);line-height:1.08;letter-spacing:-.02em;margin:16px 0;max-width:820px}
.hero p.lead{font-size:1.2rem;color:var(--mut);max-width:640px}
.pill{display:inline-block;font-size:.8rem;border:1px solid var(--line);border-radius:999px;padding:4px 12px;color:var(--acc)}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
section{padding:80px 0;border-bottom:1px solid var(--line)}section:nth-of-type(even){background:var(--bg2)}
h2{font-size:clamp(1.6rem,3vw,2.3rem);letter-spacing:-.01em;margin:0 0 8px}.sub{color:var(--mut);margin:0 0 36px;max-width:680px}
.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}.card h3{margin:0 0 6px;font-size:1.1rem}.card p{margin:0;color:var(--mut)}
.step{font-family:ui-monospace,monospace;color:var(--acc);font-size:.85rem}
table{width:100%;border-collapse:collapse;background:var(--card);border-radius:14px;overflow:hidden}
th,td{padding:14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{color:var(--acc2);font-weight:600}td{color:var(--mut)}td:first-child{color:var(--txt)}
.tbl{overflow-x:auto}.note{font-size:.85rem;color:var(--mut);margin-top:12px}
.ph{aspect-ratio:16/9;display:grid;place-items:center;border:1px dashed var(--line);border-radius:14px;background:var(--card);color:var(--mut);text-align:center;padding:20px}
.road .card ul{margin:8px 0 0;padding-left:18px;color:var(--mut)}.tag{font-size:.75rem;color:#05200f;background:var(--acc);border-radius:6px;padding:2px 8px;font-weight:700}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:10px}summary{cursor:pointer;font-weight:600}details p{color:var(--mut);margin:10px 0 0}
form.wait{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}form.wait input{flex:1;min-width:220px;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--txt);font-size:1rem}
.msg{min-height:1.5em;color:var(--acc);margin-top:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
footer{padding:36px 0;color:var(--mut);font-size:.9rem}footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.micro{font-size:.85rem;color:var(--mut);margin-top:12px}.btn.sm{padding:8px 14px;font-size:.9rem}
.board{display:grid;gap:16px;max-width:520px;margin:0 auto}
#pitch{width:100%;height:auto;border-radius:14px;border:1px solid var(--line);touch-action:none;user-select:none}
.pl{cursor:grab}.pl:focus{outline:none}.pl:focus circle{stroke:#fff;stroke-width:5}
.controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px}
.chip{background:var(--card);color:var(--txt);border:1px solid var(--line);border-radius:999px;padding:8px 16px;cursor:pointer;font:inherit}
.chip:hover{border-color:var(--acc)}.chip.on{background:var(--acc);color:#05200f;border-color:var(--acc);font-weight:600}
.tog{display:flex;gap:6px;align-items:center;color:var(--mut);margin-left:auto}.tog em{font-size:.8rem}
.result{border-color:var(--acc)}.result ul{margin:8px 0 0;padding-left:18px;color:var(--mut)}.result h3{color:var(--acc2)}
.calc{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin-bottom:16px}
.calc label{display:grid;gap:6px;color:var(--mut);font-size:.9rem}.calc input{padding:10px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--txt);font-size:1rem}
#calcOut strong{color:var(--acc);font-size:1.4rem}
.hp{position:absolute;left:-9999px}
.steps{display:flex;gap:16px;flex-wrap:wrap;font-size:.85rem;color:var(--mut);margin-bottom:20px;position:relative;padding-bottom:12px}.steps .done{color:var(--acc)}
.bar{position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--line);border-radius:4px}.bar i{display:block;height:100%;width:0;background:var(--acc);border-radius:4px;transition:width .4s}
.share{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:24px;color:var(--mut)}
.success{background:var(--card);border:1px solid var(--acc);border-radius:12px;padding:20px;margin-top:20px}
.final{text-align:center}.final h2{margin-bottom:20px}
.sticky{display:none}
@media(max-width:820px){.sticky{display:block;position:fixed;left:12px;right:12px;bottom:12px;z-index:9;text-align:center;box-shadow:0 8px 30px rgba(0,0,0,.5)}body{padding-bottom:72px}.sticky.hide{display:none}}
[hidden]{display:none!important}
/* v3 polish */
body{font-size:1rem}@media(min-width:1280px){body{font-size:1.0625rem}.wrap{max-width:1200px}}
h2{font-weight:750}.sub{font-size:1.05rem}
section{padding:72px 0}@media(max-width:600px){section{padding:56px 0}.wrap{padding:0 18px}.hero{padding:64px 0 56px}.hero p.lead{font-size:1.08rem}}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center}.btn.sm{min-height:44px}
.chip{min-height:44px}.tog{min-height:44px}.tog input{width:22px;height:22px}
.card{transition:border-color .2s,transform .2s}.card:hover{border-color:#2e6b50}
.btn.primary{box-shadow:0 0 0 0 rgba(126,240,164,.4),0 6px 24px rgba(126,240,164,.18)}
.hero h1{font-weight:800}.hero h1 span{color:var(--acc)}
@media(max-width:600px){.cta .btn{width:100%}form.wait{flex-direction:column}form.wait .btn{width:100%}.tog{margin-left:0}.calc{grid-template-columns:1fr 1fr}}
@media(max-width:380px){.calc{grid-template-columns:1fr}}
summary{min-height:44px;display:flex;align-items:center}
.msg.err{color:#ffb4a8}
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}.card,.bar i{transition:none}}
section,[id]{scroll-margin-top:76px}
.calc label,.calc input,form.wait input{min-width:0;width:100%}form.wait input{flex:1 1 220px}html,body{overflow-x:clip}
@media(max-width:600px){form.wait input{flex:none;min-height:52px}}