:root{--bg:#f7f7f2;--ink:#17201f;--muted:#5a6663;--line:#d6dcd4;--accent:#1d4ed8;--wash:#edf1fb;--panel:#fff;--radius:12px;color-scheme:light;font-family:Inter,Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--ink);background:var(--bg)}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--accent)}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:5px}button{cursor:pointer}.skip{position:absolute;top:-100px;left:16px;padding:14px;background:var(--panel);z-index:100}.skip:focus{top:12px}.shell{width:min(1180px,calc(100% - 64px));margin:auto}.site-header{border-bottom:1px solid var(--line);background:var(--bg)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 0}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:700;font-size:15px;letter-spacing:-.02em}.brand img{width:44px;height:44px;object-fit:contain;border-radius:6px}.brand small{display:block;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.11em;font-weight:500;margin-top:4px}.topnav{display:flex;gap:25px;font-size:13px;align-items:center}.topnav a{text-decoration:none}.topnav a[aria-current=page]{color:var(--accent)}.external{border:1px solid var(--line);padding:10px 14px;border-radius:5px}.eyebrow{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11px;letter-spacing:.11em;text-transform:uppercase;color:var(--accent);display:flex;gap:8px;align-items:center}.dot{width:6px;height:6px;background:var(--accent);display:inline-block;border-radius:50%}.hero{padding:76px 0 60px}.hero-grid{display:grid;grid-template-columns:1.13fr 1fr;gap:74px;align-items:center}.hero h1{font-size:clamp(45px,5vw,68px);letter-spacing:-.065em;line-height:1.02;margin:24px 0}.hero h1 em{font-family:Georgia,serif;font-weight:400;letter-spacing:-.05em}.lead{font-size:18px;line-height:1.65;color:var(--muted);max-width:600px}.button{display:inline-flex;gap:14px;align-items:center;justify-content:center;padding:14px 19px;border:1px solid var(--ink);background:var(--ink);color:var(--bg);border-radius:5px;text-decoration:none;font-size:13px;font-weight:600}.button:hover{background:var(--accent);border-color:var(--accent);color:#fff}.button.secondary{background:transparent;color:var(--ink);border-color:var(--line)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.stamp{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:10px;letter-spacing:.03em;color:var(--muted);margin-top:25px}.diagram{margin:0;background:var(--wash);padding:25px;border:1px solid var(--line);border-radius:var(--radius);position:relative;overflow:hidden}.diagram-top{display:flex;justify-content:space-between;gap:15px;font:10px ui-monospace,monospace;color:var(--muted);letter-spacing:.07em;text-transform:uppercase}.diagram ol{padding:27px 0 16px;list-style:none;display:grid;gap:9px;margin:0}.diagram li{background:var(--panel);border:1px solid var(--line);padding:15px;display:grid;grid-template-columns:30px 1fr auto;align-items:center;gap:10px;border-radius:6px;font-size:12px}.diagram li span:first-child{color:var(--accent);font:12px ui-monospace,monospace}.diagram .chip{font:9px ui-monospace,monospace;color:var(--accent);border:1px solid var(--line);padding:5px 7px;border-radius:3px}.diagram figcaption{font-size:11px;line-height:1.6;color:var(--muted);border-top:1px solid var(--line);padding-top:15px}.topic-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0;font:11px ui-monospace,monospace;text-transform:uppercase;letter-spacing:.06em;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:var(--muted)}.section{padding:65px 0;border-bottom:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:flex-end;margin-bottom:30px}.section h2{font-size:clamp(28px,3vw,40px);line-height:1.15;letter-spacing:-.045em;margin:12px 0}.section-head p{max-width:410px;color:var(--muted);line-height:1.6;font-size:14px;margin:0}.guide-list{display:grid;grid-template-columns:1fr 1fr;gap:22px}.guide-card{border:1px solid var(--line);background:var(--panel);padding:30px;border-radius:var(--radius);display:flex;flex-direction:column;align-items:flex-start;min-height:275px}.guide-card .tag{font:10px ui-monospace,monospace;text-transform:uppercase;letter-spacing:.07em;color:var(--accent)}.guide-card h3{font-size:25px;line-height:1.2;letter-spacing:-.035em;margin:25px 0 13px;max-width:400px}.guide-card p{font-size:14px;line-height:1.65;color:var(--muted);margin:0 0 25px}.guide-card>a{font-size:12px;font-weight:600;margin-top:auto}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}.tool-intro p{font-size:15px;color:var(--muted);line-height:1.7}.tool-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px}.tool-panel fieldset{padding:0;margin:0;border:0}.tool-panel legend{font-size:14px;font-weight:700;margin-bottom:20px}.check-row{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px solid var(--line);font-size:13px;line-height:1.5}.check-row input{margin:3px 0 0;accent-color:var(--accent);width:17px;height:17px;flex-shrink:0}.result{margin-top:22px;background:var(--wash);padding:18px;border-left:3px solid var(--accent);font-size:13px;line-height:1.6}.result strong{display:block;margin-bottom:4px}.result p{margin:0}.result ul{padding-left:18px;margin:12px 0 0}.result li+li{margin-top:6px}.tool-note{font-size:11px;color:var(--muted);line-height:1.7;margin:20px 0 0}.select-label{display:block;font-weight:600;font-size:13px;margin:12px 0 8px}.tool-panel select{width:100%;padding:12px;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:5px;line-height:1.4}.about-band{display:grid;grid-template-columns:1fr 1fr;gap:65px;padding:55px 0}.about-band h2{font-size:28px;letter-spacing:-.035em;margin:0}.about-band p{font-size:14px;line-height:1.8;color:var(--muted);margin:0 0 15px}.site-footer{border-top:1px solid var(--line);padding:28px 0 35px}.footer-inner{display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted);line-height:1.7}.footer-inner nav{display:flex;gap:22px}.article-shell{width:min(830px,calc(100% - 64px));margin:auto;padding:50px 0 75px}.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:35px}.article-header{padding-bottom:32px;border-bottom:1px solid var(--line);margin-bottom:35px}.article-header h1{font-size:clamp(34px,4vw,54px);line-height:1.08;letter-spacing:-.05em;margin:20px 0}.article-meta{display:flex;gap:20px;flex-wrap:wrap;font-size:11px;color:var(--muted)}.facts{display:grid;grid-template-columns:1fr 1fr;gap:15px 30px;padding:22px;background:var(--wash);border:1px solid var(--line);border-radius:8px;margin:25px 0}.facts div{display:block}.facts dt{font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:7px}.facts dd{margin:0;font-size:13px;line-height:1.5}.article-body{font-size:16px;line-height:1.8}.article-body section{margin:36px 0}.article-body h2{font-size:27px;line-height:1.25;letter-spacing:-.03em;margin:0 0 17px}.article-body h3{font-size:19px;line-height:1.35;margin-top:25px}.article-body p{margin:0 0 18px}.article-body li{padding-left:5px;margin:8px 0}.article-body code{font-size:.85em;background:var(--wash);padding:2px 5px;overflow-wrap:anywhere}.article-body pre{background:var(--wash);border:1px solid var(--line);border-radius:6px;padding:20px;overflow:auto;font-size:12px;line-height:1.7}.article-body pre code{padding:0;background:none}.table-wrap{overflow:auto}.article-body table{width:100%;border-collapse:collapse;font-size:13px;line-height:1.6}.article-body caption{text-align:left;font-size:11px;color:var(--muted);padding-bottom:10px}.article-body th,.article-body td{text-align:left;padding:13px;border:1px solid var(--line);vertical-align:top}.article-body th{background:var(--wash)}.article-body aside{padding:20px 24px;border-left:3px solid var(--accent);background:var(--wash);font-size:14px;margin:25px 0}.article-body aside p:last-child{margin-bottom:0}.toc{font-size:12px;display:flex;gap:10px 20px;flex-wrap:wrap;padding:18px 0;border-block:1px solid var(--line)}.source-list{font-size:13px;color:var(--muted)}.article-body address{font-style:normal}.article-body details{padding:16px 0;border-bottom:1px solid var(--line)}.article-body summary{cursor:pointer;font-weight:600}.article-body details p{margin:15px 0 0}.not-found{text-align:center;padding:120px 0}.gambit{--bg:#101b19;--ink:#edf4ec;--muted:#a5b6af;--line:#31453e;--accent:#b1e8b8;--wash:#192b24;--panel:#14231e;color-scheme:dark}.gambit .hero h1{letter-spacing:-.06em}.gambit .hero h1 em{color:var(--accent)}.gambit .diagram{background:linear-gradient(135deg,#1c342a,#16271f)}.gambit .brand img{background:#fff}.gambit .button{color:#101b19}.gambit .button:hover{color:#101b19}.gambit .button.secondary{color:var(--ink)}.gambit .diagram li:nth-child(3){border-color:#b1e8b8}.gambit .result{border-left-color:#b1e8b8}.gambit .hero .eyebrow{color:#b1e8b8}.gambit .topic-strip{color:#bdcabe}.hide{display:none}
@media(max-width:850px){.hero-grid{gap:35px}.hero h1{font-size:48px}.topnav{gap:16px}.topnav .external{display:none}.hero{padding-top:52px}.hero-grid,.tool-grid{grid-template-columns:1fr}.diagram{max-width:600px}.section-head{display:block}.section-head p{margin-top:16px}.about-band{gap:30px}.hero-grid{gap:30px}}
@media(max-width:540px){.shell,.article-shell{width:calc(100% - 36px)}.header-inner{padding:17px 0;gap:12px}.brand{font-size:12px;gap:9px}.brand img{width:35px;height:35px}.brand small{font-size:8px}.topnav{gap:14px;font-size:11px}.topnav a:nth-child(2){display:none}.hero{padding:39px 0}.hero h1{font-size:43px}.lead{font-size:16px}.diagram{padding:18px}.diagram li{padding:13px 10px;grid-template-columns:22px 1fr auto;font-size:11px}.diagram .chip{font-size:8px;padding:4px}.section{padding:42px 0}.guide-list,.about-band{grid-template-columns:1fr}.guide-card{padding:23px;min-height:245px}.guide-card h3{font-size:24px}.section h2{font-size:31px}.tool-panel{padding:20px}.about-band{padding:40px 0;gap:20px}.footer-inner{display:block}.footer-inner nav{margin-top:16px}.article-shell{padding-top:30px}.article-body{font-size:15px}.article-header h1{font-size:36px}.facts{grid-template-columns:1fr}.topic-strip{font-size:9px;gap:10px}.button{font-size:12px;padding:13px 16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.topnav,.actions,.tool-panel{display:none}}
.worksheet{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:28px;margin:0 0 35px}.worksheet h2{font-size:25px;letter-spacing:-.03em}.worksheet>p{font-size:14px;line-height:1.7;color:var(--muted)}.record-fields{display:grid;grid-template-columns:1fr;gap:2px}.record-input,.record-output textarea{width:100%;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:5px;padding:12px;font-size:13px;line-height:1.6}.record-output{margin-top:23px}.record-output textarea{font:12px/1.65 ui-monospace,monospace;resize:vertical}.record-input:focus-visible,.record-output textarea:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media(max-width:540px){.worksheet{padding:20px}}