:root{--ink:#17352f;--green:#176b55;--green-2:#225c4d;--mint:#e9f5ef;--cream:#fbf7ee;--paper:#fff;--coral:#e6634d;--gold:#e8b84a;--text:#24342f;--muted:#66766f;--line:#d9e4de;--shadow:0 20px 60px rgba(18,52,45,.12);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;min-width:320px;line-height:1.65;background:var(--paper)}
a{color:inherit;text-underline-offset:3px}
img{max-width:100%;height:auto}
button,input{font:inherit}
.skip-link{position:fixed;z-index:1000;left:1rem;top:-5rem;background:#fff;color:#000;padding:.75rem 1rem;border-radius:.5rem}.skip-link:focus{top:1rem}
.utility{min-height:34px;background:#0e2a24;color:#cfe1db;display:flex;align-items:center;justify-content:space-between;padding:5px max(4vw,24px);font-size:.72rem;letter-spacing:.03em}.utility a{color:#fff;font-weight:700}
.site-header{height:78px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:32px;padding:0 max(4vw,24px);position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(23,53,47,.1)}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:1.2rem;font-weight:700;white-space:nowrap}.brand b{color:var(--coral)}
.brand-mark{width:40px;height:46px;display:grid;place-items:center;background:var(--ink);color:#fff;border-radius:8px;box-shadow:inset 0 0 0 2px #fff,0 0 0 1px var(--ink);font-family:Georgia,serif;font-size:1.5rem;transform:rotate(-3deg)}
.desktop-nav{display:flex;justify-content:center;align-items:center;gap:clamp(16px,2.2vw,34px)}
.desktop-nav a,.language{text-decoration:none;font-size:.87rem;font-weight:700;color:#41534d}.desktop-nav a:hover,.language:hover{color:var(--coral)}
.header-actions{display:flex;align-items:center;gap:14px}.mobile-menu{display:none}
.download-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;border:0;border-radius:12px;background:var(--coral);color:#fff;text-decoration:none;text-transform:uppercase;letter-spacing:.05em;font-size:.84rem;font-weight:800;min-height:52px;padding:0 22px;box-shadow:0 10px 24px rgba(230,99,77,.25);transition:transform .2s ease,background .2s ease}.download-button:hover{transform:translateY(-2px);background:#d94f39}.download-button--small{min-height:42px;padding:0 16px;font-size:.72rem}
.home-hero{min-height:650px;padding:clamp(64px,8vw,114px) max(5vw,32px);display:grid;grid-template-columns:minmax(0,1.05fr) minmax(380px,.95fr);align-items:center;gap:clamp(30px,7vw,100px);overflow:hidden;background:radial-gradient(circle at 78% 25%,rgba(232,184,74,.13),transparent 21%),linear-gradient(145deg,#f9f4e9 0%,#fff 54%,#e9f5ef 100%);position:relative}
.home-hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(23,53,47,.12) 1px,transparent 1px);background-size:24px 24px;mask-image:linear-gradient(90deg,transparent,black 82%,transparent);pointer-events:none}
.hero-copy{position:relative;z-index:2;max-width:720px}.eyebrow,.kicker{display:block;color:var(--green);font-size:.73rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;margin-bottom:16px}
h1,h2,h3{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);line-height:1.12;letter-spacing:-.035em;margin:0}
.hero-copy h1{font-size:clamp(2.8rem,5.7vw,5.5rem);max-width:800px}.hero-copy>p{font-size:clamp(1.04rem,1.5vw,1.28rem);color:#53645e;max-width:650px;margin:26px 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button{display:inline-flex;min-height:54px;padding:0 24px;border-radius:12px;align-items:center;justify-content:center;gap:18px;text-decoration:none;font-weight:800;font-size:.9rem}.button--primary{background:var(--ink);color:#fff}.button--primary:hover{background:var(--green)}.button--download{background:var(--coral);color:#fff}.button--light{background:#fff;color:var(--ink)}
.hero-disclosure{font-size:.73rem!important;color:#75837e!important;max-width:600px!important;margin:16px 0 0!important}
.card-scene{position:relative;z-index:2;width:min(100%,570px);aspect-ratio:1.05;border-radius:50%;background:radial-gradient(circle at 43% 38%,#247a63,#16493c 70%);box-shadow:0 0 0 18px rgba(23,53,47,.06),0 40px 80px rgba(23,53,47,.22);display:grid;place-items:center;transform:rotate(-3deg)}
.card-scene:after{content:"";position:absolute;inset:12%;border:1px dashed rgba(255,255,255,.22);border-radius:50%}
.playing-card{position:absolute;left:50%;top:48%;width:128px;height:184px;background:#fff;border-radius:14px;padding:13px 15px;color:#d64840;font-family:Georgia,serif;box-shadow:0 16px 35px rgba(0,0,0,.25);display:flex;flex-direction:column;font-size:2.1rem;line-height:1}.playing-card i{font-style:normal}.playing-card.black{color:#17231f}.card-one{transform:translate(-180px,-82px) rotate(-17deg)}.card-two{transform:translate(-96px,-108px) rotate(-5deg)}.card-three{transform:translate(-6px,-101px) rotate(8deg)}.card-four{transform:translate(75px,-68px) rotate(19deg);opacity:.85}.scene-label{position:absolute;bottom:18%;left:50%;transform:translateX(-50%);background:#fff;color:var(--ink);border-radius:100px;padding:10px 18px;font-size:.7rem;font-weight:800;letter-spacing:.12em;white-space:nowrap;box-shadow:0 8px 24px rgba(0,0,0,.18)}.scene-label b{color:var(--green)}
.proof-strip{background:var(--ink);color:#fff;display:grid;grid-template-columns:repeat(4,1fr);padding:0 max(5vw,32px)}.proof-strip span{min-height:84px;display:flex;gap:13px;align-items:center;justify-content:center;border-right:1px solid rgba(255,255,255,.12);font-size:.82rem;font-weight:600}.proof-strip span:last-child{border:0}.proof-strip b{color:var(--gold);font-size:.7rem}
.section{padding:clamp(70px,8vw,110px) max(5vw,32px)}.section--cream{background:var(--cream)}.section.compact{padding-top:45px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:40px;margin-bottom:42px}.section-head h2,.rule-demo h2,.calculator-promo h2{font-size:clamp(2rem,3.5vw,3.4rem);max-width:720px}.section-head>p{max-width:520px;color:var(--muted);margin:0}
.lesson-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.lesson-card{min-height:360px;border:1px solid var(--line);border-radius:18px;padding:28px;background:#fff;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease}.lesson-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.pill{align-self:flex-start;border:1px solid #bcd4ca;color:var(--green);padding:5px 10px;border-radius:100px;font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.lesson-card h3{font-size:1.28rem;margin:23px 0 15px}.lesson-card h3 a{text-decoration:none}.lesson-card p{font-size:.9rem;color:var(--muted);margin:0}.lesson-card footer{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;font-size:.73rem}.lesson-card footer a{font-weight:800;color:var(--green);text-decoration:none}
.rule-demo{margin:0 max(5vw,32px) clamp(70px,8vw,110px);border-radius:24px;background:var(--mint);padding:clamp(35px,6vw,75px);display:grid;grid-template-columns:.8fr 1.2fr;align-items:center;gap:60px}.rule-demo p{color:#50635c}.rule-demo a{color:var(--green);font-weight:800}.hand-example{display:grid;gap:10px}.hand-example>div{display:grid;grid-template-columns:90px repeat(4,minmax(48px,1fr));gap:8px;align-items:center}.hand-example b{display:grid;place-items:center;height:76px;background:#fff;border-radius:9px;color:#cf4239;font-family:Georgia,serif;font-size:1.25rem;box-shadow:0 5px 16px rgba(23,53,47,.08)}.hand-tag{font-size:.66rem;font-weight:800;letter-spacing:.08em;color:#596b65}.hand-tag.valid{color:var(--green)}
.download-panel{margin:0 max(5vw,32px) clamp(70px,8vw,110px);background:linear-gradient(110deg,#102d27,#1f594a);border-radius:22px;padding:28px 34px;display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;color:#fff;box-shadow:var(--shadow)}.app-icon{width:72px;height:82px;border-radius:14px;background:linear-gradient(145deg,#8f2078,#432064);display:grid;place-items:center;position:relative;border:2px solid rgba(255,255,255,.7);box-shadow:0 8px 24px rgba(0,0,0,.24);font-family:Georgia,serif;font-size:2.2rem;font-weight:800}.app-icon i{position:absolute;font-size:.85rem;color:var(--gold);font-style:normal;right:10px;bottom:9px}.download-copy{display:flex;flex-direction:column}.download-copy .kicker{color:var(--gold);margin:0 0 4px}.download-copy strong{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:1.3rem}.download-copy small{color:#c7d8d2}.download-disclosure{grid-column:2/4;color:#a8beb7;font-size:.72rem;margin:0}.download-panel .download-button{min-width:190px}
.format-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.format-card{position:relative;min-height:315px;padding:34px;border-radius:18px;background:#fff;border:1px solid #ece3d1;overflow:hidden}.format-card>span{position:absolute;right:22px;top:10px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:5rem;font-weight:800;color:#f0eadf}.format-card h3{font-size:1.5rem;position:relative;margin:55px 0 18px}.format-card h3 a{text-decoration:none}.format-card p{color:var(--muted);font-size:.9rem}.format-card>a{position:absolute;left:34px;bottom:30px;color:var(--green);font-size:.82rem;font-weight:800;text-decoration:none}
.calculator-promo{margin:clamp(70px,8vw,110px) max(5vw,32px);border-radius:24px;padding:clamp(38px,6vw,72px);background:var(--ink);color:#fff;display:grid;grid-template-columns:1fr auto;align-items:center;gap:50px}.calculator-promo .eyebrow{color:var(--gold)}.calculator-promo h2{color:#fff}.calculator-promo p{color:#c3d5cf;max-width:650px}.score-badge{width:230px;height:230px;border:1px solid rgba(255,255,255,.2);border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(circle,#225c4d,#17352f)}.score-badge span{font-family:Georgia,serif;font-size:.85rem}.score-badge strong{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:4.6rem;line-height:1;color:var(--gold)}.score-badge small{letter-spacing:.14em;font-weight:800}
.faq-section{max-width:1050px;margin:auto}.faq-section details,.article-faq details{border-top:1px solid var(--line);padding:20px 0}.faq-section details:last-child,.article-faq details:last-child{border-bottom:1px solid var(--line)}.faq-section details summary,.article-faq details summary{cursor:pointer;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-weight:700;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:20px}.faq-section details summary:after,.article-faq details summary:after{content:"+";color:var(--coral);font-size:1.3rem}.faq-section details[open] summary:after,.article-faq details[open] summary:after{content:"−"}.faq-section details p,.article-faq details p{color:var(--muted)}
.page-hero{padding:70px max(5vw,32px) 75px;background:linear-gradient(140deg,var(--cream),#fff);border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(2.6rem,5vw,5rem);max-width:950px}.page-hero>p{max-width:760px;font-size:1.15rem;color:var(--muted);margin:22px 0 0}.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-size:.72rem;color:#71807a;margin-bottom:40px}.breadcrumbs a{color:var(--green)}
.boundary-note{margin:42px auto 0;max-width:900px;background:var(--mint);border-left:4px solid var(--green);padding:24px 28px}.boundary-note p{margin:6px 0 0}
.article-shell{padding-bottom:50px}.article-header{padding:60px max(12vw,32px) 55px;background:linear-gradient(140deg,var(--cream),#fff);border-bottom:1px solid var(--line)}.article-header h1{font-size:clamp(2.5rem,5vw,4.8rem);max-width:1000px}.article-header .dek{font-size:1.18rem;color:var(--muted);max-width:800px;margin:24px 0}.byline{display:flex;align-items:center;gap:12px;margin-top:28px}.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;font-size:.72rem;font-weight:800}.byline>span:last-child{display:flex;flex-direction:column}.byline strong{font-size:.86rem;color:var(--ink)}.byline small{font-size:.72rem;color:var(--muted)}
.article-layout{display:grid;grid-template-columns:240px minmax(0,760px);justify-content:center;gap:65px;padding:60px max(5vw,32px)}.toc{position:sticky;top:130px;align-self:start;border-left:2px solid var(--line);padding-left:22px;font-size:.78rem}.toc strong{color:var(--ink)}.toc ol{padding-left:17px;margin:13px 0}.toc li{margin:9px 0}.toc a{color:var(--muted);text-decoration:none}.toc a:hover{color:var(--green)}
.prose{font-size:1rem}.prose .lead{font-size:1.2rem;color:#465953;margin:0 0 42px}.prose section{margin:0 0 45px}.prose h2{font-size:clamp(1.65rem,2.6vw,2.25rem);margin-bottom:16px}.prose p{color:#455751}.prose a{color:var(--green);font-weight:700}.caveat{margin:50px 0;background:var(--mint);border-radius:14px;padding:24px 28px}.caveat strong{color:var(--ink)}.caveat p{margin:6px 0 0}.article-faq{margin-top:55px}.article-faq h2,.sources h2{margin-bottom:20px}.sources{border-top:1px solid var(--line);padding-top:38px}.sources ul{padding-left:20px}.sources li{margin:7px 0}.mini-hand{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;background:var(--ink);padding:18px;border-radius:12px}.mini-hand span{background:#fff;border-radius:8px;padding:14px;text-align:center;font-family:Georgia,serif;color:#cf4239;font-weight:700}
.related{background:var(--cream)}.related .lesson-grid{grid-template-columns:repeat(3,1fr)}
.score-tool{background:var(--cream);border:1px solid #eadfca;border-radius:18px;padding:26px;margin:30px 0 48px}.tool-title h2{margin-top:5px}.score-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:25px 0}.score-row{display:grid;grid-template-columns:42px 1fr 36px 28px 36px;gap:6px;align-items:center;background:#fff;border:1px solid var(--line);padding:8px;border-radius:10px}.mini-card{display:grid;place-items:center;width:38px;height:45px;background:#fff;border:1px solid #d5ddd9;border-radius:5px;font-family:Georgia,serif;font-weight:700;color:#1f2e29}.mini-card.red{color:#d64840}.score-row button{border:0;border-radius:7px;background:var(--mint);color:var(--green);font-weight:800;height:34px;cursor:pointer}.score-row output{text-align:center;font-weight:800}.score-total{display:grid;grid-template-columns:1fr auto;align-items:center;gap:10px;background:var(--ink);color:#fff;padding:20px;border-radius:12px}.score-total>strong,.score-total>b{font-size:2rem;color:var(--gold)}.score-total label{font-size:.78rem;color:#c8d8d3}.score-total button{justify-self:end;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35);border-radius:8px;padding:7px 12px;cursor:pointer}.tool-note{font-size:.75rem!important;margin:14px 0 0;color:var(--muted)!important}
.policy-prose{max-width:800px;margin:auto}.page-record{margin-top:50px;border-top:1px solid var(--line)}.page-record div{display:grid;grid-template-columns:180px 1fr;padding:14px 0;border-bottom:1px solid var(--line)}.page-record dt{font-weight:700;color:var(--ink)}.page-record dd{margin:0;color:var(--muted)}.not-found{min-height:55vh}.not-found .button{margin-top:20px}
.site-footer{background:#0e2a24;color:#b8cdc6;padding:60px max(5vw,32px) 105px}.footer-main{display:grid;grid-template-columns:1fr 1fr;gap:40px}.brand--footer{color:#fff}.footer-main>div p{max-width:480px;font-size:.84rem}.footer-main nav{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.footer-main nav a{color:#d9e6e2;font-size:.82rem}.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;margin:38px 0 0;font-size:.72rem}.mobile-download{display:none}

@media (max-width:1100px){.desktop-nav{display:none}.site-header{grid-template-columns:auto 1fr auto}.header-actions{justify-self:end}.mobile-menu{display:block;position:relative}.mobile-menu summary{list-style:none;font-weight:800;color:var(--ink);cursor:pointer}.mobile-menu nav{position:absolute;right:0;top:38px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;width:230px;box-shadow:var(--shadow);display:grid}.mobile-menu nav a{text-decoration:none;padding:10px;border-radius:7px}.mobile-menu nav a:hover{background:var(--mint)}.home-hero{grid-template-columns:1fr .8fr}.lesson-grid{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:200px minmax(0,700px);gap:35px}}
@media (max-width:820px){.utility{justify-content:center}.utility a{display:none}.site-header{height:68px;padding:0 18px;gap:14px}.header-actions .language{display:none}.download-button--small{display:none}.brand{font-size:1rem}.brand-mark{width:34px;height:40px}.home-hero{min-height:auto;grid-template-columns:1fr;padding:60px 22px 70px}.hero-copy h1{font-size:clamp(2.55rem,13vw,4.2rem)}.card-scene{width:min(92vw,500px);margin:20px auto 0}.proof-strip{grid-template-columns:repeat(2,1fr);padding:0 18px}.proof-strip span{justify-content:flex-start;padding-left:14px;border-bottom:1px solid rgba(255,255,255,.12)}.section{padding:65px 22px}.section-head{display:block}.section-head>p{margin-top:18px}.rule-demo{margin:0 22px 65px;grid-template-columns:1fr;padding:34px 22px;gap:30px}.download-panel{margin:0 22px 65px;grid-template-columns:auto 1fr;padding:24px}.download-panel .download-button{grid-column:1/3;width:100%}.download-disclosure{grid-column:1/3}.format-grid{grid-template-columns:1fr}.calculator-promo{margin:65px 22px;grid-template-columns:1fr;padding:38px 24px}.score-badge{width:190px;height:190px;margin:auto}.page-hero{padding:50px 22px}.article-header{padding:45px 22px}.article-layout{display:block;padding:38px 22px}.toc{position:relative;top:auto;margin-bottom:40px}.related .lesson-grid{grid-template-columns:1fr}.footer-main{grid-template-columns:1fr}.mobile-download{position:fixed;z-index:80;display:flex;bottom:0;left:0;right:0;align-items:center;justify-content:space-between;gap:10px;background:#fff;border-top:1px solid var(--line);padding:10px max(12px,env(safe-area-inset-right)) max(10px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));box-shadow:0 -8px 24px rgba(18,52,45,.12)}.mobile-download div{display:flex;flex-direction:column;line-height:1.25}.mobile-download strong{font-size:.78rem;color:var(--ink)}.mobile-download span{font-size:.64rem;color:var(--muted)}.mobile-download a{background:var(--coral);color:#fff;text-decoration:none;border-radius:8px;padding:10px 14px;font-size:.72rem;font-weight:800}.site-footer{padding-bottom:120px}}
@media (max-width:560px){.hero-actions{display:grid}.button{width:100%}.playing-card{width:84px;height:126px;font-size:1.4rem;padding:10px}.card-one{transform:translate(-122px,-53px) rotate(-17deg)}.card-two{transform:translate(-65px,-70px) rotate(-5deg)}.card-three{transform:translate(-4px,-66px) rotate(8deg)}.card-four{transform:translate(52px,-46px) rotate(19deg)}.scene-label{bottom:14%;font-size:.58rem}.proof-strip{grid-template-columns:1fr}.proof-strip span{min-height:58px}.lesson-grid{grid-template-columns:1fr}.lesson-card{min-height:310px}.rule-demo{margin-left:12px;margin-right:12px}.hand-example>div{grid-template-columns:70px repeat(4,minmax(35px,1fr));gap:5px}.hand-example b{height:55px;font-size:.94rem}.download-panel{margin-left:12px;margin-right:12px}.download-panel .app-icon{width:58px;height:66px}.download-copy strong{font-size:1rem}.download-copy small{font-size:.65rem}.score-grid{grid-template-columns:1fr}.mini-hand{grid-template-columns:1fr}.page-record div{grid-template-columns:1fr}.footer-main nav{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.lesson-card,.download-button{transition:none}}