*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--navy:#080f0a;--deep:#0b1410;--card:#0f1a12;--card2:#0c1610;--border:#1a3022;--accent:#5fd46b;--accent2:#2f9c49;--gold:#f4c542;--text:#e6f0e9;--muted:#72907f;--muted2:#4d6758;--danger:#ff4d6d}
html{scroll-behavior:smooth;background:var(--navy)}
body{background:var(--navy);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.7;overflow-x:hidden}
body::before{content:'';position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");pointer-events:none;z-index:0;opacity:.4}
@media(max-width:768px){body::before{display:none}}
a{color:var(--accent);text-decoration:none} a:hover{color:#83df8b}
.seo-nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px;padding:0 40px;background:rgba(8,15,10,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.logo{font-family:"Bebas Neue",sans-serif;font-size:1.7rem;letter-spacing:2px;color:var(--text)} .logo span{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.nav-link{font-size:.84rem;color:var(--muted);font-weight:700}.nav-link:hover{color:var(--accent)}
.wrap{width:min(980px,calc(100% - 36px));margin:0 auto;position:relative;z-index:1}
.masthead{padding:82px 0 28px;max-width:860px}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.7rem;font-weight:900;letter-spacing:1.5px;text-transform:uppercase;color:var(--gold);border:1px solid rgba(244,197,66,.3);background:rgba(244,197,66,.07);padding:6px 12px;border-radius:999px;margin-bottom:18px}
h1{font-family:"DM Serif Display",serif;font-size:clamp(2.3rem,5.3vw,3.6rem);line-height:1.11;letter-spacing:-.018em;color:var(--text);margin-bottom:16px}.dek{font-size:1.04rem;color:#aac4b6;line-height:1.75;max-width:820px}
.crumbs{margin-top:13px;font-size:.76rem;color:var(--muted)}.meta-line{margin-top:11px;color:var(--muted);font-size:.72rem;font-weight:800;letter-spacing:.03em}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(270px,.7fr);gap:16px;margin:16px 0 20px}.hero-panel,.stats-panel{background:linear-gradient(145deg,rgba(15,26,18,.97),rgba(10,20,14,.93));border:1px solid var(--border);border-radius:16px;box-shadow:0 16px 40px rgba(0,0,0,.18)}
.hero-panel{padding:22px}.hero-panel p{color:#c7d8ce}.stats-panel{padding:14px;display:grid;gap:9px;align-content:center}.stat{padding:13px 14px;border:1px solid var(--border);border-radius:13px;background:rgba(255,255,255,.018)}.stat-value{font-weight:900;font-size:1.45rem;color:var(--text)}.stat-label{margin-top:3px;color:var(--muted);font-size:.78rem}
.note{margin:18px 0 26px;padding:16px 18px;border:1px solid rgba(244,197,66,.28);background:rgba(244,197,66,.05);border-radius:12px;color:#c7d8ce;font-size:.9rem}.note b{color:var(--gold)}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 30px}.toc a{padding:7px 10px;border:1px solid var(--border);border-radius:999px;background:var(--card2);font-size:.73rem;font-weight:800;color:var(--muted)}.toc a:hover{border-color:rgba(95,212,107,.35);color:var(--text)}
article{padding-bottom:18px} h2{font-family:"Bebas Neue",sans-serif;letter-spacing:.5px;font-size:1.65rem;color:var(--text);margin:48px 0 14px} h3{font-size:1.04rem;color:var(--text);margin:24px 0 8px}
article p{color:#c7d8ce;font-size:.98rem;line-height:1.78;margin:0 0 16px;max-width:850px}article ul,article ol{margin:0 0 18px 22px;color:#c7d8ce;font-size:.94rem}article li{margin-bottom:8px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;margin:16px 0 26px}.card{background:var(--card);border:1px solid var(--border);border-radius:13px;padding:15px}.card h3{margin:0 0 7px}.card p{margin:0;font-size:.88rem;color:#aac4b6}.card .tag{display:inline-block;margin-bottom:7px;color:var(--accent);font-size:.66rem;font-weight:900;letter-spacing:.13em;text-transform:uppercase}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:13px;background:var(--card);margin:16px 0 26px}.table-wrap table{width:100%;border-collapse:collapse;min-width:620px}.table-wrap th,.table-wrap td{padding:11px 12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top;font-size:.84rem}.table-wrap th{color:var(--accent);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;background:rgba(95,212,107,.04)}.table-wrap td{color:#c7d8ce}.table-wrap tr:last-child td{border-bottom:none}
.formula{padding:17px 18px;border:1px solid var(--border);border-radius:13px;background:var(--card);margin:16px 0 24px}.formula-label{font-size:.67rem;font-weight:900;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:8px}.formula-line{font-family:"DM Sans",sans-serif;font-size:1rem;color:var(--text);overflow-wrap:anywhere}.formula-sub{margin-top:7px;color:var(--muted);font-size:.8rem}
.example{border-left:3px solid var(--accent);background:rgba(95,212,107,.05);padding:16px 18px;margin:16px 0 25px;border-radius:0 12px 12px 0;color:#c7d8ce}.example b{color:var(--text)}
.callout{padding:16px 18px;background:rgba(95,212,107,.04);border:1px solid rgba(95,212,107,.16);border-radius:13px;margin:16px 0 24px}.callout strong{color:var(--accent)}
.source-note{margin:38px 0 50px;padding:16px 18px;border:1px solid var(--border);border-radius:10px;background:var(--card2);font-size:.78rem;color:var(--muted);line-height:1.66}.source-note b{color:var(--text)}.source-note a{color:var(--accent)}
.faq-item{padding:15px 0;border-bottom:1px solid var(--border)}.faq-item:last-child{border-bottom:none}.faq-q{font-weight:800;color:var(--text);margin-bottom:6px}.faq-a{color:#aac4b6;font-size:.91rem;line-height:1.65}
.checklist{display:grid;gap:9px;margin:15px 0 25px}.check-row{display:flex;gap:11px;align-items:flex-start;padding:12px 13px;background:var(--card);border:1px solid var(--border);border-radius:11px}.check-row input{margin-top:4px;accent-color:var(--accent);width:17px;height:17px}.check-row label{color:#c7d8ce;font-size:.88rem;line-height:1.55;cursor:pointer}.progress-box{position:sticky;top:82px;z-index:20;margin:0 0 17px;padding:10px 12px;background:rgba(11,20,16,.9);backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:12px}.progress-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:.72rem;margin-bottom:7px}.progress-track{height:7px;border-radius:999px;background:#102018;overflow:hidden}.progress-bar{height:100%;width:0;background:var(--accent);transition:width .18s ease}
footer{border-top:1px solid var(--border);margin-top:22px;padding:34px 0 54px;color:var(--muted);font-size:.8rem}.foot-links{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:13px}
@media(max-width:820px){.hero-grid{grid-template-columns:1fr}.stats-panel{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:640px){.seo-nav{padding:0 18px}.nav-links{gap:11px}.wrap{width:min(100% - 28px,980px)}.masthead{padding-top:62px}.grid{grid-template-columns:1fr}.stats-panel{grid-template-columns:1fr 1fr}.table-wrap table{min-width:560px}}