/* Info KetuaMahjong | Original, lightweight stylesheet. No external libraries. */
:root{color-scheme:dark;--bg:#101215;--surface:#191c20;--surface2:#202328;--line:#33363b;--text:#f4f1e9;--muted:#b1b4bb;--gold:#e8bb66;--gold-light:#f9dca0;--burgundy:#77352b;--radius:16px;--width:1220px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--gold);text-underline-offset:4px}a:hover{color:var(--gold-light)}button,input{font:inherit}img,svg{max-width:100%}img{height:auto}p,h1,h2,h3,figure{margin-top:0}p{margin-bottom:1em}h1,h2,h3{line-height:1.18;letter-spacing:-.035em}h2{font-size:30px}h3{font-size:20px}strong{color:var(--text)}.wrap{width:min(var(--width),calc(100% - 64px));margin-inline:auto}.muted{color:var(--muted)}.eyebrow{font-size:11px;font-weight:750;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}.skip{position:fixed;z-index:100;top:8px;left:12px;padding:10px 16px;background:var(--gold);color:#17120c;transform:translateY(-150%)}.skip:focus{transform:none}:focus-visible{outline:3px solid var(--gold);outline-offset:5px;border-radius:3px}
.topbar{border-bottom:1px solid var(--line);background:#15171a}.topbar-inner{min-height:85px;display:flex;align-items:center;justify-content:space-between;gap:24px}.wordmark{display:flex;align-items:center;gap:13px;color:var(--text);text-decoration:none}.wordmark:hover{color:var(--text)}.mark{width:43px;height:43px;flex:none}.wordmark-name{display:block;font-size:20px;font-weight:760;letter-spacing:-.6px;line-height:1.25}.wordmark-name b{color:var(--gold);font-weight:760}.wordmark-caption{display:block;font-size:10px;letter-spacing:.2em;font-weight:600;color:var(--muted);margin-top:4px}.topnav{display:flex;gap:28px;align-items:center;font-size:13px;font-weight:600}.topnav a{text-decoration:none;color:var(--muted)}.topnav a:hover{color:var(--text)}.topnav .nav-button{padding:10px 17px;border:1px solid #625133;border-radius:8px;color:var(--gold)}.external{font-size:16px;margin-left:5px;line-height:1}
.page-intro{padding:30px 0 0;background:radial-gradient(ellipse at 85% 0,rgba(121,83,35,.12),transparent 60%)}.breadcrumbs{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:11px;color:var(--muted);margin-bottom:27px}.breadcrumbs a{color:var(--muted);text-decoration:none}.intro-row{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;padding-bottom:27px}.title-wrap{max-width:865px}.title-wrap .eyebrow{display:block;margin-bottom:10px}h1{font-size:clamp(30px,3.1vw,44px);font-weight:750;max-width:890px;margin-bottom:13px}h1 em{font-style:normal;color:var(--gold)}.intro-copy{color:var(--muted);font-size:15px;max-width:710px;margin:0;line-height:1.7}.edition{flex:none;border-left:1px solid var(--line);padding-left:23px;margin-bottom:2px;font-size:11px;color:var(--muted)}.edition strong{display:block;font-size:12px;margin-top:5px}.section-nav{display:flex;gap:30px;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px;white-space:nowrap;overflow-x:auto;scrollbar-width:thin}.section-nav a{padding:17px 0;text-decoration:none;color:var(--muted);flex:none;border-bottom:2px solid transparent}.section-nav a:first-child{border-bottom-color:var(--gold);color:var(--gold)}.section-nav a:hover{color:var(--text)}
.page-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:30px;padding-block:30px 64px}.main-column{min-width:0}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.visual-panel{padding:12px;margin:0 0 24px}.visual-stage{position:relative;isolation:isolate;aspect-ratio:1;overflow:hidden;border-radius:10px;background:radial-gradient(ellipse at 50% 25%,#653629 0,#281c1c 50%,#15171b 100%);border:1px solid #6b4c2b}.visual-underlay{position:absolute;inset:0;z-index:-1;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:30px;text-align:center;pointer-events:none}.visual-underlay .monogram{font:600 86px/1 Georgia,serif;color:var(--gold);letter-spacing:-6px;border:1px solid #ad804b;border-radius:20px;padding:35px 25px;box-shadow:inset 0 0 0 6px #2d211b;margin-bottom:24px}.visual-underlay strong{font-size:23px}.visual-underlay span{font-size:11px;letter-spacing:.15em;color:#c8ad88;margin-top:10px}.hero-image{display:block;width:100%;height:100%;object-fit:contain;color:#f3d18b;font-size:12px}.visual-panel figcaption{display:flex;gap:12px;justify-content:space-between;align-items:center;padding:14px 6px 3px;color:var(--muted);font-size:11px;line-height:1.6}.visual-panel figcaption span{max-width:520px}.visual-panel figcaption a{flex:none;text-decoration:none}.content-block{padding:32px;margin-top:24px}.section-heading{display:flex;gap:12px;align-items:center;margin-bottom:16px}.section-number{font-size:11px;font-weight:750;color:var(--gold);border:1px solid #675132;border-radius:6px;width:31px;height:31px;display:grid;place-items:center;flex:none}.section-heading h2{margin:0;font-size:27px}.prose{font-size:15px;color:#c5c7cd;line-height:1.85}.prose p:last-child{margin-bottom:0}.lead{font-size:17px;color:#e2e1dd;line-height:1.75}.context-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}.context-strip span{display:block;font-size:10px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}.context-strip strong{font-size:13px}.domain-list{margin:25px 0}.domain-item{padding:17px 0;border-bottom:1px solid var(--line)}.domain-item:first-child{border-top:1px solid var(--line)}.domain-item h3{font-size:16px;letter-spacing:-.015em;margin:0 0 6px;overflow-wrap:anywhere}.domain-item p{margin:0;color:var(--muted);font-size:14px}.domain-item .type{display:block;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:5px}.steps{list-style:none;counter-reset:step;padding:0;margin:25px 0 0}.steps li{counter-increment:step;position:relative;padding:0 0 22px 43px}.steps li:last-child{padding-bottom:0}.steps li:before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--gold);font-size:12px;font-weight:700;border-top:1px solid #80613c;width:26px;padding-top:6px}.steps h3{font-size:17px;margin-bottom:6px;letter-spacing:-.015em}.steps p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}.note{padding:17px 18px;border:1px solid #675239;border-left:3px solid var(--gold);border-radius:0 8px 8px 0;background:#27221c;color:#e5d6bd;font-size:13px;line-height:1.85;margin-top:24px}.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}.security-card{background:#141619;border:1px solid var(--line);border-radius:10px;padding:20px}.security-card .mini-label{font-size:10px;letter-spacing:.12em;color:var(--gold);display:block;margin-bottom:9px}.security-card h3{font-size:17px;margin-bottom:9px}.security-card p{margin:0;font-size:13px;color:var(--muted);line-height:1.8}.faq-intro{font-size:14px;color:var(--muted);margin-bottom:22px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{position:relative;list-style:none;padding:20px 36px 20px 0;cursor:pointer;font-size:15px;font-weight:650;line-height:1.6}summary::-webkit-details-marker{display:none}summary:after{content:'+';position:absolute;right:2px;top:18px;font-size:24px;font-weight:400;color:var(--gold)}details[open] summary:after{content:'\2212'}details[open] summary{color:var(--gold)}.answer{padding:0 30px 20px 0;color:#bfc2c9;font-size:14px;line-height:1.85}.answer p{margin:0}.editorial{background:transparent}.editorial .prose{font-size:14px}.editorial h3{font-size:16px;margin:22px 0 10px}
.sidebar{display:grid;gap:18px;position:sticky;top:24px}.access-panel{padding:26px;border-top:3px solid var(--gold);background:linear-gradient(150deg,#262421,var(--surface) 55%)}.access-label{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:10px;letter-spacing:.13em;color:var(--gold);margin-bottom:18px}.info-pill{border:1px solid #4e4c45;border-radius:30px;padding:3px 9px;color:#cecbc4;font-size:9px;letter-spacing:.06em}.access-panel h2{font-size:27px;margin-bottom:12px}.access-panel>p{font-size:13px;line-height:1.8;color:var(--muted);margin-bottom:20px}.link-card{margin:0 0 12px;padding:12px 13px;background:#101215;border:1px solid var(--line);border-radius:8px}.link-card span{display:block;color:var(--muted);font-size:10px}.link-card strong{font-size:13px;word-break:break-word}.button{min-height:49px;padding:13px 18px;display:flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;border:1px solid var(--gold);font-size:13px;font-weight:750;line-height:1.5;text-decoration:none;text-align:center}.button-primary{background:var(--gold);color:#21180b}.button-primary:hover{background:var(--gold-light);color:#21180b}.button-secondary{background:transparent;color:var(--gold);margin-top:10px;border-color:#695237}.button-secondary:hover{background:#30271c}.external-note{font-size:11px!important;margin:16px 0 0!important;line-height:1.7!important}.info-panel{padding:22px 25px}.info-panel h3{font-size:14px;margin-bottom:17px}.facts{margin:0;font-size:12px}.facts>div{display:flex;justify-content:space-between;gap:15px;padding:10px 0;border-bottom:1px solid var(--line)}.facts>div:first-child{padding-top:0}.facts>div:last-child{border:0;padding-bottom:0}.facts dt{color:var(--muted)}.facts dd{margin:0;text-align:right;color:var(--text)}.toc{list-style:none;padding:0;margin:0}.toc li+li{margin-top:12px}.toc a{display:flex;gap:13px;text-decoration:none;color:#c5c7ce;font-size:12px;line-height:1.5}.toc a:hover{color:var(--gold)}.toc span{color:var(--gold);font-size:10px;margin-top:2px}.sidebar-footnote{font-size:11px;color:var(--muted);padding:0 7px;line-height:1.8;margin:0}.sidebar-footnote strong{color:#d1c3ad;font-weight:600}.bottom-banner{margin-top:24px;padding:25px 30px;display:flex;justify-content:space-between;align-items:center;gap:20px;border:1px solid #5c4a30;border-radius:14px;background:linear-gradient(100deg,#282219,#191b1e)}.bottom-banner h3{font-size:18px;margin-bottom:6px}.bottom-banner p{font-size:12px;color:var(--muted);margin:0}.bottom-banner a{font-size:12px;white-space:nowrap;text-decoration:none}
.footer{border-top:1px solid var(--line);background:#15171a;padding:30px 0}.footer-inner{display:flex;justify-content:space-between;gap:30px;align-items:center}.footer .wordmark-name{font-size:16px}.footer .mark{width:31px;height:31px}.footer-copy{font-size:11px;color:var(--muted);text-align:right;line-height:1.8}.footer-copy p{margin:0}.footer-copy a{text-decoration:none;color:var(--muted)}.small-links{display:flex;justify-content:flex-end;gap:20px;margin-bottom:6px}
@media(min-width:1500px){.wrap{width:min(var(--width),calc(100% - 96px))}}@media(max-width:1050px){.wrap{width:calc(100% - 40px)}.page-grid{grid-template-columns:minmax(0,1fr) 305px;gap:22px}.topnav{gap:18px}.edition{display:none}.content-block{padding:26px}.access-panel{padding:23px}.access-panel h2{font-size:24px}.context-strip{gap:8px}.context-strip strong{font-size:12px}.security-grid{grid-template-columns:1fr}}
@media(max-width:800px){.wrap{width:calc(100% - 32px)}.topbar-inner{min-height:76px;gap:12px}.wordmark-name{font-size:18px}.wordmark-caption{font-size:9px;letter-spacing:.15em}.mark{width:38px;height:38px}.topnav{gap:12px}.topnav a:not(.nav-button){display:none}.topnav .nav-button{font-size:11px;padding:8px 10px}.page-intro{padding-top:22px}.breadcrumbs{margin-bottom:22px;font-size:10px;gap:7px}.intro-row{padding-bottom:24px}h1{font-size:34px;line-height:1.15}.intro-copy{font-size:14px}.section-nav{gap:24px;font-size:12px}.section-nav a{padding:14px 0}.page-grid{grid-template-columns:1fr;padding-top:22px;gap:22px}.sidebar{position:static;grid-row:1;grid-template-columns:1fr}.access-panel{padding:22px}.access-label{margin-bottom:10px}.access-panel h2{font-size:23px;margin-bottom:7px}.access-panel>p{margin-bottom:15px}.link-card{display:none}.access-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.button-secondary{margin-top:0}.external-note{margin-top:12px!important;font-size:10px!important}.sidebar .info-panel,.sidebar-footnote{display:none}.visual-panel{margin-bottom:22px}.content-block{padding:26px;margin-top:22px}.section-heading h2{font-size:25px}.security-grid{grid-template-columns:1fr 1fr}.bottom-banner{padding:24px}.footer-inner{align-items:flex-start}.footer-copy{font-size:10px}.small-links{gap:13px}}
@media(max-width:480px){.wrap{width:calc(100% - 28px)}.topbar-inner{min-height:74px}.wordmark{gap:9px}.wordmark-name{font-size:16px}.wordmark-caption{font-size:8px;letter-spacing:.13em}.mark{width:34px;height:34px}.topnav .nav-button{font-size:10px;padding:7px 9px}.topnav .external{display:none}h1{font-size:30px;letter-spacing:-.04em}.title-wrap .eyebrow{font-size:10px}.intro-copy{font-size:13px}.section-nav{gap:22px}.page-grid{padding-bottom:40px}.access-panel{padding:20px}.button{font-size:11px;padding:12px 8px;min-height:46px}.access-panel h2{font-size:22px}.visual-panel{padding:8px}.visual-panel figcaption{font-size:10px;display:block;padding:11px 5px 5px}.visual-panel figcaption a{display:inline-block;margin-top:6px}.content-block{padding:23px 20px}.section-heading{gap:10px}.section-heading h2{font-size:23px}.section-number{width:27px;height:27px;font-size:10px}.lead{font-size:16px}.prose{font-size:14px}.context-strip{grid-template-columns:1fr;gap:12px}.context-strip>div{display:flex;align-items:center;justify-content:space-between;gap:14px}.context-strip span{margin:0}.security-grid{grid-template-columns:1fr}.domain-item h3{font-size:15px}.domain-item p{font-size:13px}summary{font-size:14px;padding-block:18px}.answer{font-size:13px;padding-right:10px}.bottom-banner{display:block;padding:22px}.bottom-banner a{display:inline-block;margin-top:14px}.footer-inner{display:block}.footer-copy{text-align:left;margin-top:20px}.small-links{justify-content:flex-start}.visual-underlay .monogram{font-size:65px;padding:22px 18px}.visual-underlay strong{font-size:20px}.visual-underlay span{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{body{background:white;color:#111}.topbar,.section-nav,.sidebar,.footer,.bottom-banner,.visual-panel{display:none}.wrap{width:100%}.page-grid{display:block;padding:0}.content-block{background:white;color:#111;border-color:#ddd;break-inside:avoid}.prose,.prose strong,.answer,.muted,.steps p,.domain-item p,.security-card p{color:#222}.security-card,.note{background:white;color:#111}a{color:#222}.intro-copy{color:#333}}

/* Editorial revision: allow longer explanations without changing the design. */
.prose h3{font-size:19px;line-height:1.4;margin:26px 0 10px}.editorial .prose h3{font-size:16px}.security-card strong{overflow-wrap:anywhere}.prose a,.answer a{overflow-wrap:anywhere}