:root{color-scheme:dark;--bg:#08111b;--panel:#112130;--line:#263d50;--text:#e5eff7;--muted:#a0b5c8;--accent:#71d9ed}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.85 system-ui,'Malgun Gothic',sans-serif}a{color:var(--accent);text-underline-offset:4px}a:hover{color:#fff}header{height:72px;position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 4vw;background:#091522f2;border-bottom:1px solid var(--line)}header nav{display:flex;gap:22px;flex-wrap:wrap}.brand{text-decoration:none;letter-spacing:1px;font-weight:800;white-space:nowrap}.brand span{color:var(--text);font-weight:500;letter-spacing:0;margin-left:8px}.layout{display:grid;grid-template-columns:240px minmax(0,960px);gap:46px;max-width:1320px;margin:0 auto;padding:36px 28px 80px}aside{position:sticky;top:104px;align-self:start;max-height:calc(100vh - 120px);overflow:auto}aside label{font-weight:700;font-size:13px}input{display:block;background:#0b1b2a;color:var(--text);width:100%;border:1px solid var(--line);padding:11px;border-radius:8px;font:inherit;margin:8px 0 18px}aside nav{display:flex;flex-direction:column;gap:5px}aside nav a{padding:5px 9px;color:var(--muted);font-size:13px;text-decoration:none;border-left:2px solid transparent}aside nav a:hover,aside nav a.active{color:var(--accent);border-color:var(--accent);background:#102a3b}.hero{padding:20px 0 36px;border-bottom:1px solid var(--line)}.hero h1{font-size:clamp(36px,4.2vw,58px);line-height:1.3;letter-spacing:-1.6px;margin:20px 0}.hero p:not(.eyebrow){color:var(--muted);max-width:650px;font-size:17px}.eyebrow{color:var(--accent);font-size:11px;font-weight:800;letter-spacing:2px}.hero small{color:var(--muted)}.hero-links{display:flex;gap:12px;flex-wrap:wrap;margin:25px 0}button,.button{display:inline-block;padding:10px 16px;border:1px solid var(--line);border-radius:8px;background:#0d2031;color:var(--text);text-decoration:none;font:inherit;cursor:pointer}.primary{background:#16576c;border-color:#3d95aa}#printGuide{font-size:12px;width:100%;margin-top:20px}.guide-section{padding:40px 0;border-bottom:1px solid var(--line);scroll-margin-top:8px}h2{font-size:27px;line-height:1.5;letter-spacing:-.5px;margin:5px 0 22px}h3{font-size:17px;margin:8px 0}.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.steps article,.download-card{padding:20px;background:var(--panel);border:1px solid var(--line);border-radius:12px}.steps b{color:var(--accent);font-size:26px}.steps p{color:var(--muted);font-size:13px}.note{padding:17px 20px;background:#102334;border-left:3px solid var(--accent);border-radius:0 8px 8px 0;color:#bed0df}li{margin-bottom:10px}strong{color:#fff}code{padding:2px 5px;background:#112736;border-radius:4px;font-size:13px;overflow-wrap:anywhere}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:13px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--accent);white-space:nowrap}.formula{padding:20px;border:1px solid var(--line);border-radius:8px;background:var(--panel);text-align:center}.density-example{display:flex;gap:15px;align-items:center;font-size:12px;color:var(--muted);padding:20px;background:var(--panel);border-radius:8px}.density-example i{height:14px;flex:1;background:linear-gradient(90deg,#143746,#38adbe,#ffdc58);border-radius:10px}details{border-top:1px solid var(--line);padding:17px 0}summary{font-weight:700;cursor:pointer;color:#cde4f4}details p{color:var(--muted)}.download-card{display:flex;gap:25px;align-items:center;justify-content:space-between;margin:22px 0}.download-card p{margin:5px 0;color:var(--muted);font-size:13px}.download-card a{white-space:nowrap}.pill{display:inline-block;border:1px solid #33788c;border-radius:20px;padding:1px 10px;color:var(--accent);font-size:11px}footer{color:var(--muted);font-size:12px;padding:30px 0}[hidden]{display:none!important}@media(max-width:1000px){.layout{grid-template-columns:200px minmax(0,1fr);gap:25px}.steps{grid-template-columns:1fr}.download-card{align-items:flex-start;flex-direction:column}}@media(max-width:720px){header{height:auto;min-height:72px;position:relative;align-items:flex-start;flex-direction:column;padding:16px 20px;gap:8px}header nav{gap:16px;font-size:12px}.layout{display:block;padding:15px 18px 40px}aside{position:static;max-height:none;padding:5px 0 20px;border-bottom:1px solid var(--line)}aside nav{display:grid;grid-template-columns:1fr 1fr;gap:0}#printGuide{max-width:220px}h2{font-size:23px}.hero h1{font-size:37px}.guide-section{padding:30px 0}.density-example{gap:8px}th,td{min-width:100px}}@media print{body{background:#fff;color:#111;font-size:11pt}header,aside,.hero-links,#downloadHash{display:none}.layout{display:block;max-width:none;padding:0}h1,h2,h3,strong{color:#000}.hero h1{font-size:28pt}.hero p:not(.eyebrow),.note,details p,.steps p,.download-card p,footer{color:#333}.guide-section{break-inside:avoid-page;padding:15px 0}.note,.steps article,.download-card,.formula{background:#f4f6f8;border-color:#ccc}.steps{grid-template-columns:repeat(3,1fr)}a{color:#075b75}details{display:block}details>*{display:block!important}th,td{border-color:#ccc}.button{display:none}}
