@charset "UTF-8";
:root{--ink:#18343d;--muted:#53676c;--paper:#f5f8f6;--white:#fff;--line:#cedbd7;--coral:#f28c7c;--blue:#72bed5;--lilac:#b5a3e6;--lime:#c7dc7e;--gold:#f6c66c;--teal:#08737c;--radius:22px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:104px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:1rem;line-height:1.85;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}a{color:inherit;text-underline-offset:5px}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}img{display:block;max-width:100%;height:auto}button{color:inherit}button:disabled{cursor:default}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--teal);outline-offset:5px}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.45}h1,h2{letter-spacing:-.04em}h3{font-size:1.3rem}p{color:var(--muted)}[hidden]{display:none!important}.wrap{max-width:1240px;margin-inline:auto;padding-inline:48px}.section{padding-block:112px}.eyebrow{font-size:.8rem;font-weight:750;letter-spacing:.15em;color:var(--teal);margin-bottom:22px}.section-heading h2,h2{font-size:clamp(1.8rem,3.3vw,2.8rem);font-weight:750}.section-heading>p:last-child{margin-top:22px}.heading-row{display:flex;justify-content:space-between;gap:40px;align-items:end}.heading-row>p:last-child{margin:0 0 8px}.small-note,.image-caption{font-size:.875rem;line-height:1.7}.text-link{display:inline-flex;align-items:center;gap:18px;font-weight:650;text-decoration:none;padding-block:12px}.text-link:hover{text-decoration:underline}.button{display:inline-flex;align-items:center;justify-content:center;gap:28px;min-height:54px;padding:13px 25px;border-radius:9px;border:1px solid transparent;font-size:.95rem;font-weight:700;text-decoration:none;transition:transform .2s,background .2s}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--ink);color:white}.button-primary:hover{background:#24515a}.button-light{background:white;color:var(--ink)}.button-outline{background:transparent;border-color:var(--line)}.skip-link{position:fixed;top:8px;left:12px;z-index:30;padding:10px 18px;background:white;transform:translateY(-150%)}.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:20;background:rgba(245,248,246,.96);border-bottom:1px solid var(--line)}.header-inner{flex-wrap:wrap;max-width:1340px;padding:19px 48px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}.wordmark{display:inline-flex;align-items:center;gap:11px;font-size:1.65rem;font-weight:650;letter-spacing:-.055em;text-decoration:none;line-height:1}.wordmark img{width:34px;height:34px}.header-inner nav{flex-wrap:wrap;display:flex;align-items:center;gap:32px;font-size:.9rem;font-weight:600}.header-inner nav a{text-decoration:none;padding-block:8px}.header-inner nav a:hover{color:var(--teal)}.maker-link{font-size:.8rem;text-decoration:none;color:var(--muted);white-space:nowrap}.maker-link span{margin-left:12px}
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center;padding-top:56px;padding-bottom:64px;min-height:790px}.hero h1{font-size:clamp(2.05rem,4.15vw,3.6rem);font-weight:800;line-height:1.55;letter-spacing:-.055em}.hero h1 span{display:block;color:var(--teal)}.hero-description{margin-top:27px;font-size:1rem;line-height:2.1}.hero-actions{display:flex;gap:24px;align-items:center;margin-top:34px;flex-wrap:wrap}.hero-actions .text-link{font-size:.9rem;gap:12px}.release-line{display:flex;gap:15px;align-items:center;margin-top:42px;font-size:.85rem;color:var(--muted)}.release-label{background:#e1ebe7;padding:3px 10px;border-radius:4px;font-weight:650;color:var(--ink)}.hero-visual{border:1px solid #c6d9d3;border-radius:var(--radius);background:linear-gradient(130deg,#e6eeea,#d9e9e6);padding:22px 22px 16px}.visual-caption{display:flex;justify-content:space-between;gap:8px;font-size:.65rem;letter-spacing:.12em;font-weight:700;color:#4b676c;margin-bottom:20px}.screen-composition{display:flex;align-items:center;justify-content:center;gap:23px}.hero-screen{width:280px;border:1px solid #b6cfca;border-radius:18px;box-shadow:0 18px 36px #24453e1b}.color-rail{display:flex;flex-direction:column;gap:10px}.color-rail span{display:grid;place-items:center;width:48px;height:48px;border-radius:11px;color:var(--ink);font-size:1.6rem;font-weight:600;border-bottom:4px solid #18343d1c}.color-rail span:nth-child(1){background:var(--coral)}.color-rail span:nth-child(2){background:var(--blue)}.color-rail span:nth-child(3){background:var(--lilac)}.color-rail span:nth-child(4){background:var(--lime)}.color-rail span:nth-child(5){background:var(--gold)}.image-caption{text-align:center;margin-top:17px;font-size:.8rem}.intro-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.intro-strip .wrap{display:flex;align-items:center;justify-content:space-around;gap:20px;padding-block:25px}.intro-strip p{font-size:.875rem}.intro-strip strong{font-size:1.5rem;color:var(--ink);margin-right:10px;font-weight:700}.intro-strip .wrap>span{color:#a4b6b1}
.how-section{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px}.rule{display:flex;align-items:start;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}.rule:first-child{padding-top:0}.rule-number{font-size:.85rem;color:var(--teal);font-weight:700;padding-top:7px}.rule h3{font-size:1.15rem;margin-bottom:10px}.rule p{font-size:.94rem}.rule-glyph{width:42px;height:42px;flex:0 0 42px;border-radius:10px;display:grid;place-items:center;font-size:1.5rem;margin-top:3px}.coral{background:var(--coral)}.blue{background:var(--blue)}.lilac{background:var(--lilac)}
.chain-section{background:var(--ink);color:white;padding-block:78px}.chain-layout{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.chain-section .eyebrow{color:var(--blue)}.chain-section p{color:#c1d0d2;margin-top:20px}.chain-section .eyebrow{margin-top:0}.chain-section .small-note{margin-top:22px;color:#b2c4c8}.chain-demo{background:#23444c;border:1px solid #41616a;border-radius:var(--radius);padding:27px}.demo-status{display:flex;justify-content:space-between;gap:10px;font-size:.8rem;color:#c1d0d2}.demo-step{color:white;font-weight:700}.chain-demo .button{font-size:.875rem;width:100%}
.comfort-section{padding-block:85px;background:#e9efec;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.comfort-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;margin-top:48px}.feature-mark{display:block;font-size:.8rem;color:var(--teal);padding-bottom:16px;border-bottom:1px solid #b8cdc5;margin-bottom:22px}.comfort-grid h3{font-size:1.16rem;margin-bottom:16px}.comfort-grid p{font-size:.95rem}.release-section{text-align:center}.release-section>img{margin:0 auto 25px;border-radius:24px;width:88px;height:88px}.release-section .eyebrow{margin-bottom:16px}.release-section>p:not(.eyebrow){margin-top:22px}.store-links{display:flex;justify-content:center;gap:15px;flex-wrap:wrap;margin:32px 0 16px}.store-pending,.store-link{display:flex;flex-direction:column;min-width:180px;line-height:1.6;justify-content:center;padding:14px 22px;border:1px solid #b8cbc4;border-radius:9px;background:#edf2ef}.store-pending>span,.store-link>span{font-size:1.2rem;font-weight:650}.store-pending small,.store-link small{font-size:.8rem;color:var(--muted)}.store-link{text-decoration:none;background:var(--ink);color:white}.store-link small{color:#d1e0dc}.store-link:hover{background:#24515a}
.site-footer{background:var(--ink);padding:48px max(24px,calc((100vw - 1144px)/2)) 24px;color:white}.footer-top{display:flex;justify-content:space-between;align-items:start;gap:30px;padding-bottom:40px}.footer-brand{font-size:2rem}.footer-brand img{width:40px;height:40px}.footer-top p{font-size:.9rem;color:#b5c9cd;margin-top:15px}.footer-links{display:flex;gap:24px;flex-wrap:wrap;font-size:.875rem;padding-top:10px}.footer-links a{text-decoration:none}.footer-links a:hover{text-decoration:underline}.footer-bottom{border-top:1px solid #ffffff30;padding-top:22px;display:flex;justify-content:space-between;gap:20px;font-size:.75rem;color:#c0d0d2}.footer-bottom a{color:inherit}.site-footer a:focus-visible,.chain-section button:focus-visible{outline-color:var(--gold)}
.page-intro{padding-top:62px;padding-bottom:52px;border-bottom:1px solid var(--line)}.breadcrumbs{font-size:.8rem;color:var(--muted);margin-bottom:35px;display:flex;gap:12px;flex-wrap:wrap}.page-intro h1{font-size:clamp(2rem,4vw,3.2rem);font-weight:750}.page-intro .lead{max-width:720px;margin-top:24px}.document-meta{display:flex;flex-wrap:wrap;gap:12px 28px;font-size:.8rem;color:var(--muted);margin-top:25px}.document-layout{display:grid;grid-template-columns:230px 1fr;gap:72px;padding-top:56px;padding-bottom:100px}.document-nav{align-self:start;position:sticky;top:108px;font-size:.875rem}.document-nav p{font-weight:700;color:var(--ink);margin-bottom:14px}.document-nav ol{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}.document-nav li{border-bottom:1px solid var(--line)}.document-nav a{display:block;padding:10px 0;text-decoration:none}.document-nav a:hover{color:var(--teal)}.document-body{min-width:0;overflow-wrap:anywhere}.document-body section+section{margin-top:44px}.document-body h2{font-size:1.4rem;letter-spacing:0;margin-bottom:16px}.document-body h3{font-size:1.06rem;margin-top:20px;margin-bottom:10px}.document-body p+p{margin-top:13px}.document-body ul{padding-left:1.4em;color:var(--muted)}.document-body li+li{margin-top:10px}.document-body a{color:var(--teal);overflow-wrap:anywhere}.summary-box{padding:25px 28px;border:1px solid #a7c8bd;border-radius:16px;background:#e5f0eb;margin-bottom:42px}.summary-box h2{font-size:1.1rem;margin-bottom:12px}.summary-box ul{margin-bottom:0}.policy-table{width:100%;border-collapse:collapse;font-size:.94rem;line-height:1.8;margin:20px 0}.policy-table th,.policy-table td{text-align:left;vertical-align:top;padding:16px;border:1px solid var(--line)}.policy-table th{background:#e7eeea;color:var(--ink);width:27%}.policy-table td{color:var(--muted);background:#fff6}
.support-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;padding-top:60px;padding-bottom:90px}.support-heading{font-size:1.55rem;margin-bottom:22px}.faq{border-bottom:1px solid var(--line)}.faq:first-of-type{border-top:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:650;padding:21px 28px 21px 0;position:relative;list-style:none;line-height:1.8}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";position:absolute;right:3px;top:21px;font-size:1.3rem;color:var(--teal)}.faq[open] summary:after{content:"−"}.faq>div{padding:0 20px 23px 0;color:var(--muted);font-size:.95rem}.faq>div p+p{margin-top:12px}.faq ol{padding-left:1.3em}.contact-panel{align-self:start;padding:32px;background:white;border:1px solid var(--line);border-radius:20px}.contact-panel h2{font-size:1.5rem;margin-bottom:18px}.contact-panel .contact-email{display:block;color:var(--teal);font-size:clamp(1.05rem,1.7vw,1.25rem);font-weight:650;margin:22px 0;overflow-wrap:anywhere}.contact-panel .button{width:100%;margin-top:12px}.contact-panel .small-note{margin-top:18px}.contact-panel hr{border:0;border-top:1px solid var(--line);margin:25px 0}.contact-list{font-size:.9rem;color:var(--muted);padding-left:1.3em;line-height:2}.copy-status{min-height:1.8em;font-size:.85rem;color:var(--teal);margin-top:10px}.contact-panel label{display:block;font-size:.9rem;font-weight:650;margin:20px 0 7px}.contact-panel select{width:100%;min-height:48px;background:var(--paper);border:1px solid #a6b9b2;border-radius:6px;padding:9px;font-size:.95rem}.contact-panel a:not(.button){overflow-wrap:anywhere}.legal-callout{border-left:3px solid var(--teal);padding:12px 20px;background:#e8efeb;font-size:.9rem;margin-top:25px}
@media(min-width:1400px){.hero{gap:80px;min-height:840px}.hero-screen{width:300px}.hero h1{font-size:3.55rem}}
@media(max-width:1050px){.wrap{padding-inline:32px}.header-inner{padding-inline:32px}.hero{gap:28px;min-height:700px}.hero h1{font-size:clamp(2.05rem,4.3vw,2.9rem)}.hero-screen{width:240px}.hero-visual{padding-inline:14px}.color-rail span{width:36px;height:40px;font-size:1.3rem}.screen-composition{gap:13px}.visual-caption{font-size:.6rem;letter-spacing:.07em}.how-section{gap:40px}.mode-layout{gap:40px}.chain-layout{gap:35px}.comfort-grid{gap:28px}.document-layout{gap:40px;grid-template-columns:190px 1fr}.support-layout{gap:32px}.footer-top{flex-direction:column}}
@media(max-width:760px){html{scroll-padding-top:95px}.wrap{padding-inline:24px}.section{padding-block:70px}.header-inner{padding:14px 22px;gap:15px}.wordmark{font-size:1.4rem;gap:8px}.wordmark img{width:28px;height:28px}.header-inner nav{gap:18px;font-size:.8rem}.maker-link{display:none}.hero{grid-template-columns:1fr;gap:38px;padding-top:42px;padding-bottom:42px;min-height:0}.hero h1{font-size:clamp(2rem,7.4vw,3.2rem);line-height:1.55}.hero-copy{max-width:570px}.hero-description{font-size:.95rem;margin-top:20px}.hero-actions{margin-top:27px;gap:18px}.hero-actions .button{padding-inline:21px}.release-line{margin-top:24px}.hero-visual{max-width:480px;width:100%;justify-self:center;padding:20px 20px 16px}.visual-caption{font-size:.65rem}.hero-screen{width:245px}.screen-composition{gap:22px}.color-rail span{width:43px;height:46px;font-size:1.6rem}.intro-strip .wrap{padding-block:21px;gap:10px}.intro-strip strong{font-size:1.25rem;display:block;margin:0}.intro-strip p{text-align:center;font-size:.8rem}.how-section{grid-template-columns:1fr;gap:35px}.rule{gap:16px}.rule h3{font-size:1.05rem}.rule-glyph{flex-basis:36px;width:36px;height:36px}.chain-layout{grid-template-columns:1fr;gap:33px}.chain-section{padding-block:55px}.chain-demo{padding:23px}.demo-cell{aspect-ratio:1/1.05}.demo-description{min-height:3.8em}.heading-row{display:block}.heading-row>p:last-child{margin-top:18px}.mode-layout{grid-template-columns:1fr;gap:35px;margin-top:30px}.mode-options{gap:12px}.mode-card{padding:22px}.mode-preview{position:static;max-width:320px}.comfort-section{padding-block:60px}.comfort-grid{grid-template-columns:1fr;gap:28px;margin-top:33px}.feature-mark{padding-bottom:10px;margin-bottom:15px}.comfort-grid h3{margin-bottom:10px}.release-section h2{font-size:1.8rem}.store-links{gap:10px}.store-pending,.store-link{min-width:145px;padding:13px 17px}.store-pending>span{font-size:1.05rem}.site-footer{padding:38px 24px 24px}.footer-top{padding-bottom:30px}.footer-links{gap:16px 24px;font-size:.8rem}.footer-bottom{flex-direction:column;gap:12px}.page-intro{padding-block:35px}.page-intro h1{font-size:2rem}.page-intro .lead{font-size:.95rem}.breadcrumbs{margin-bottom:25px}.document-layout{grid-template-columns:1fr;gap:30px;padding-block:32px 65px}.document-nav{position:static}.document-nav ol{display:grid;grid-template-columns:1fr 1fr;column-gap:24px}.document-nav a{font-size:.8rem}.document-body h2{font-size:1.3rem}.document-body section+section{margin-top:35px}.policy-table th,.policy-table td{padding:11px;font-size:.875rem}.summary-box{padding:21px;margin-bottom:35px}.support-layout{grid-template-columns:1fr;gap:40px;padding-block:38px 65px}.contact-panel{padding:26px}.eyebrow{margin-bottom:16px}}
@media(max-width:370px){.wrap{padding-inline:19px}.header-inner{padding-inline:16px}.header-inner nav{gap:13px}.hero h1{font-size:1.83rem}.hero-actions{gap:12px}.hero-actions .text-link{font-size:.8rem;gap:6px}.hero-actions .button{padding:12px 16px;font-size:.875rem;gap:16px}.hero-screen{width:220px}.color-rail span{width:31px;height:36px;font-size:1.2rem}.screen-composition{gap:12px}.hero-visual{padding-inline:12px}.rule-glyph{display:none}.demo-status{font-size:.7rem}.demo-tiles{gap:7px}.chain-demo{padding:18px}.release-section h2{font-size:1.6rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.button:hover{transform:none}}
@media print{.site-header,.site-footer,.hero-actions,.document-nav,.button{display:none}.wrap{max-width:none;padding:0}.document-layout{display:block}.document-body{font-size:11pt}body{background:white;color:black}.document-body section{break-inside:avoid}.page-intro{padding:0 0 20px}.eyebrow{color:black}}


/* Decorative glyphs keep their size when text is enlarged. */
.color-rail span{font-size:26px}.rule-glyph{font-size:24px}
html{scroll-padding-top:calc(4rem + 44px)}

/* Approved icon and centered geometry, independent of font baselines. */
.wordmark img{width:44px;height:44px;object-fit:contain;border-radius:24%;flex:none}
.footer-brand img{width:48px;height:48px}.release-section>img{border-radius:24%}
.tile-symbol{display:block;width:24px;height:24px;flex:none;overflow:visible}
.color-rail>span,.rule-glyph,.mode-top>span[aria-hidden]{display:grid;place-items:center;line-height:1}
.tile-top .tile-symbol,.tile-under .tile-symbol,.empty-cell .tile-symbol{width:45%;height:45%;max-width:42px;max-height:42px}
.language-control{display:flex;align-items:center;gap:9px;font-size:.875rem;max-width:100%;color:var(--muted)}
.language-control select{min-height:44px;max-width:210px;min-width:0;border:1px solid var(--line);border-radius:8px;background:white;color:var(--ink);padding:7px 28px 7px 10px}
/* Pointer selection keeps the normal border; keyboard focus stays visible. */
.language-control select.pointer-focus:focus{outline:none}
.language-control>span{white-space:nowrap}.header-inner{gap:16px}.header-inner nav{gap:24px}
.screenshot-note{margin-top:8px;text-align:center}.hero-copy,.hero-visual,.rule>div,.mode-options,.mode-card,.contact-panel{min-width:0}
.hero h1{overflow-wrap:anywhere}.document-body,.contact-panel,.mode-card,.hero-copy{overflow-wrap:break-word}
html:lang(th) body{line-height:1.95}html:not(:lang(ja)):not(:lang(zh)):not(:lang(ko)) .hero h1{font-size:clamp(2rem,3.6vw,3.2rem);line-height:1.25;letter-spacing:-.025em}
@media(max-width:1000px){.maker-link{display:none}.language-control>span{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}}
@media(max-width:760px){.header-inner{display:grid;grid-template-columns:1fr auto;gap:8px 12px;padding:10px 20px}.header-inner nav{grid-row:2;grid-column:1/-1;justify-content:center;gap:24px;flex-wrap:wrap}.language-control{grid-column:2;grid-row:1}.language-control select{max-width:160px;font-size:.8rem}.wordmark img{width:36px;height:36px}.wordmark{font-size:1.35rem;gap:7px}html{scroll-padding-top:132px}.hero h1{overflow-wrap:normal}.hero-actions{gap:14px}.heading-row{overflow-wrap:break-word}}
@media(max-width:370px){.header-inner{padding-inline:16px}.language-control select{max-width:139px}.header-inner nav{gap:16px}.rule-glyph{display:grid;flex-basis:32px;width:32px;height:32px}.rule{gap:10px}.rule-glyph .tile-symbol{width:21px;height:21px}.color-rail .tile-symbol{width:21px;height:21px}}

/* September 2026: one puzzle, adjustable play conditions. */
.hero-kind{font-size:.92rem;color:var(--teal);font-weight:700;margin:0 0 15px}
.hero-copy>.eyebrow{margin-bottom:16px}
.strategy-section{padding-block:90px;border-bottom:1px solid var(--line)}
.strategy-heading{display:grid;grid-template-columns:1fr 1fr;gap:0 50px;align-items:end}
.strategy-heading .eyebrow{grid-column:1/-1}.strategy-heading>p:last-child{padding-bottom:8px}
.strategy-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:38px}
.strategy-card{min-width:0;padding:32px;border:1px solid var(--line);border-radius:18px;background:#fff9}
.strategy-label,.guidance-label{display:block;font-size:.72rem;font-weight:750;letter-spacing:.13em;color:var(--teal);margin-bottom:14px}
.strategy-card h3{font-size:1.28rem;margin-bottom:12px}.strategy-card>p{font-size:.94rem}
.multiplier-steps{display:flex;align-items:center;gap:15px;margin:28px 0 16px}
.multiplier-steps span{display:grid;place-items:center;flex:1;min-height:66px;border-radius:10px;background:#dcecf0;font-size:1.65rem;font-weight:750;line-height:1.2}
.combo-card .multiplier-steps span{background:#ebe5f6}.multiplier-steps i{font-style:normal;color:var(--muted)}
.strategy-card .multiplier-note{font-size:.78rem}.strategy-pause{margin-top:26px;text-align:center;font-size:.95rem;font-weight:600;color:var(--teal)}
.customize-section{position:relative}.legacy-anchor{position:absolute;top:0;scroll-margin-top:130px}
.customize-layout{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;margin-top:42px}
.condition-panel{padding:28px 32px;border:1px solid var(--line);border-radius:20px;background:#fff9;min-width:0}
.condition-intro{font-size:.92rem;margin-bottom:26px;color:var(--ink);font-weight:600}
#condition-controls{border:0;padding:0;margin:0;min-width:0}
.condition-row{border:0;padding:0 0 23px;margin:0 0 21px;min-width:0;border-bottom:1px solid var(--line)}
.condition-row:last-child{border-bottom:0;padding-bottom:0;margin-bottom:0}
.condition-row legend{display:flex;gap:12px;align-items:center;padding:0;margin-bottom:12px;max-width:100%;font-size:.94rem;font-weight:650}
.condition-number{font-size:.7rem;letter-spacing:.06em;color:var(--teal);font-weight:750}
.segmented{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.choice{position:relative;min-width:0;cursor:pointer}
.choice input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}
.choice>span{display:flex;justify-content:center;align-items:center;text-align:center;min-height:48px;height:100%;padding:9px 13px;border:1px solid var(--line);border-radius:9px;color:var(--muted);font-size:.9rem;line-height:1.5;transition:background .18s,border-color .18s}
.choice input:checked+span{color:#075c64;background:#e0eeea;border:2px solid var(--teal);padding:8px 12px;font-weight:750}
.choice input:hover+span{border-color:var(--teal)}.choice input:focus-visible+span{outline:3px solid var(--teal);outline-offset:4px}
.number-field{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:15px;font-size:.84rem}
.number-field input{max-width:120px;min-width:80px;width:40%;min-height:44px;padding:7px 12px;border:1px solid #9cafaa;border-radius:7px;background:white;color:var(--ink)}
.number-field input:user-invalid{border-color:#a83f33;outline-color:#a83f33}
.number-hint{margin-top:22px;font-size:.75rem}
.condition-preview{position:sticky;top:140px;background:#e2eeea;border:1px solid #c3d8d0;border-radius:20px;padding:30px 34px;min-width:0;text-align:center}
.condition-preview .eyebrow{margin-bottom:10px;font-size:.7rem}.condition-preview h3{font-size:1.14rem}
.condition-summary{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin:18px 0 26px;font-size:.75rem;min-height:58px;align-content:start}
.condition-summary span{padding:4px 10px;border-radius:5px;border:1px solid #bfcec8;background:#ffffff80;line-height:1.6}
.preview-board{display:grid;grid-template-columns:repeat(var(--board-size),minmax(0,1fr));gap:8px;max-width:352px;margin:0 auto 24px;aspect-ratio:1}
.preview-cell{position:relative;display:flex;align-items:center;justify-content:center;aspect-ratio:1;border-radius:10px;border:1px solid #18343d15;overflow:hidden;color:var(--ink);box-shadow:inset 0 -2px #18343d10;font-size:clamp(19px,2.4vw,32px);line-height:1;font-family:"Segoe UI Symbol","Arial Unicode MS",sans-serif}
.tile-0{background:var(--coral)}.tile-1{background:var(--blue)}.tile-2{background:var(--lime)}.tile-3{background:var(--lilac)}.tile-4{background:var(--gold)}
.tile-empty{background:#d2e1da;color:#5b7670;box-shadow:none}.tile-obstacle{background:#99ada9;color:#203d3d}
.preview-layer{position:absolute;bottom:0;left:0;right:0;height:17%;border-top:1px solid #18343d33;font-size:10px;display:grid;place-items:center;font-style:normal;line-height:1}
.condition-preview .small-note{font-size:.76rem;max-width:350px;margin:auto}.preview-legend{margin-top:16px;font-size:.66rem;color:#4c6861}
.condition-guidance{display:grid;grid-template-columns:1fr 1fr;gap:44px;margin-top:32px}
.condition-guidance>div:first-child{border-left:3px solid var(--teal);padding-left:23px}.condition-guidance p{font-size:.9rem}.condition-guidance .small-note{font-size:.8rem;margin-top:14px}.guidance-label{margin-bottom:8px}
@media(max-width:1050px){.customize-layout,.condition-guidance{gap:28px}.condition-panel,.condition-preview{padding:25px}.strategy-card{padding:26px}.multiplier-steps{gap:10px}}
@media(max-width:760px){.hero-kind{font-size:.84rem}.strategy-section{padding-block:60px}.strategy-heading{display:block}.strategy-heading>p:last-child{margin-top:18px}.strategy-grid{grid-template-columns:1fr;gap:16px;margin-top:28px}.strategy-card{padding:25px}.multiplier-steps{max-width:400px;margin-top:22px}.strategy-pause{text-align:left;font-size:.9rem}.customize-layout{grid-template-columns:1fr;gap:24px;margin-top:30px}.condition-panel{padding:24px}.condition-preview{position:static;padding:26px 24px}.condition-summary{min-height:0;margin-bottom:22px}.preview-board{max-width:340px}.preview-cell{font-size:28px}.condition-guidance{grid-template-columns:1fr;gap:24px}.condition-guidance p{font-size:.87rem}.condition-row{padding-bottom:20px;margin-bottom:20px}}
@media(max-width:370px){.condition-panel,.condition-preview{padding:20px}.choice>span{font-size:.83rem;padding-inline:8px}.choice input:checked+span{padding-inline:7px}.segmented{gap:8px}.preview-board{gap:6px}.preview-cell{border-radius:7px;font-size:23px}.preview-layer{font-size:8px}.strategy-card{padding:21px}.multiplier-steps span{font-size:1.4rem;min-height:56px}}
@media print{.condition-preview{position:static}.strategy-grid,.customize-layout{break-inside:avoid}}

/* Long translations and enlarged text must reflow without horizontal scrolling. */
body{overflow-wrap:anywhere}
.hero h1,.page-intro h1{overflow-wrap:anywhere;hyphens:auto}
.chain-layout>*,.support-layout>*,.strategy-heading>*,.condition-guidance>*{min-width:0}
.intro-strip p{flex:1;min-width:0;text-align:center}
.intro-strip .wrap>span,.color-rail{flex-shrink:0}
.hero-screen{min-width:0;object-fit:contain}
.visual-caption>span,.demo-status>span{min-width:0}
.release-line{flex-wrap:wrap}
.multiplier-steps span{min-width:0;font-size:clamp(20px,2.3vw,32px)}
.multiplier-steps i{font-size:16px}
.policy-table{table-layout:fixed}
@media(max-width:480px){
  .policy-table,.policy-table tbody,.policy-table tr,.policy-table th,.policy-table td{display:block;width:100%}
  .policy-table th{border-bottom:0}.policy-table tr+tr th{border-top:0}
}


/* The tutorial's row → L → zigzag chain, without changing the board layout. */
.chain-layout{grid-template-columns:.85fr 1.15fr;gap:70px}
.chain-copy{align-self:center}.chain-color-path{display:flex;align-items:center;gap:14px;margin-top:30px}
.chain-color-path>span{display:grid;place-items:center;width:46px;height:46px;border-radius:11px;color:var(--ink)}
.chain-color-path svg{width:25px;height:25px}.chain-color-path i{font-style:normal;color:#c1d0d2}
.chain-demo{padding:28px;min-width:0}
.chain-board-wrap{position:relative;max-width:360px;margin:24px auto 20px}
.chain-board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;aspect-ratio:1}
.chain-cell{position:relative;min-width:0;aspect-ratio:1;padding:0;border:1px solid #bad1d41c;border-radius:11px;background:#31545c;color:var(--ink);isolation:isolate;overflow:visible;cursor:default}
.chain-cell svg{display:block;width:38%;height:38%;max-width:33px;max-height:33px}
.chain-empty,.chain-face,.chain-under{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;border-radius:10px;pointer-events:none}
.chain-empty{color:#88a9af}.chain-empty svg{width:24%;height:24%}
.ink-coral{background:var(--coral)}.ink-blue{background:var(--blue)}.ink-lime{background:var(--lime)}
.chain-face{z-index:2;transform-origin:center;box-shadow:inset 0 -2px #18343d1f}
.chain-face.has-under{bottom:17%}.chain-under{top:78%;z-index:1;border-top:1px solid #18343d35;border-radius:0 0 10px 10px}
.chain-under svg{width:11px;height:11px}
.chain-target{outline:2px solid #f6c66c;outline-offset:3px}
.chain-target:not(:disabled){cursor:pointer}.chain-target:not(:disabled):hover{background:#40646a}
.chain-target:not(:disabled):focus-visible{outline:3px solid white;outline-offset:4px;box-shadow:0 0 0 7px var(--gold)}
.chain-target:disabled{outline-color:transparent}
.chain-demo[data-state="ready"] .chain-target{outline-color:var(--gold)}
.chain-cursor{position:absolute;inset:11px;display:flex;align-items:center;justify-content:center;gap:3px;color:var(--ink);background:var(--coral);border-radius:9px;pointer-events:none}
.chain-cursor svg{width:26px;height:26px}.chain-cursor>span{position:absolute;right:-4px;bottom:-4px;display:grid;place-items:center;border-radius:50%;width:22px;height:22px;font:bold 16px/1 sans-serif;background:var(--gold);border:2px solid #23444c}
.chain-cell.is-matched .chain-face{outline:2px solid #fff6d7;outline-offset:2px;box-shadow:0 0 18px #f6c66c36;z-index:4}
.chain-cell.is-placed .chain-face{animation:chain-place .24s ease-out both}
.chain-cell.is-clearing .chain-face{animation:chain-clear .36s ease-in both}
.chain-cell.is-revealed .chain-face{animation:chain-reveal .32s ease-out both;outline:2px solid #fff6d7;outline-offset:2px}
@keyframes chain-place{from{transform:scale(.72);opacity:.5}to{transform:scale(1);opacity:1}}
@keyframes chain-clear{0%{transform:scale(1);opacity:1}30%{transform:scale(1.04,.94)}100%{transform:scale(.6);opacity:0}}
@keyframes chain-reveal{from{transform:translateY(4px);opacity:.6}to{transform:translateY(0);opacity:1}}
.chain-progress{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}
.chain-progress>span{font-size:.72rem;line-height:1.5;color:#bed0d2;border:1px solid #58767e;padding:5px 10px;border-radius:6px;transition:background .2s,color .2s}
.chain-progress>i{font-style:normal;color:#91abb1;font-size:13px}
.chain-progress>span.is-current,.chain-progress>span.is-done{background:#dcebe7;color:var(--ink);border-color:#dcebe7;font-weight:700}
.chain-progress>span.is-current{background:var(--gold);border-color:var(--gold)}
.chain-captions{display:grid;margin:19px 0 20px}
.chain-section .chain-caption{grid-area:1/1;margin:0;font-size:.9rem;line-height:1.85;visibility:hidden}
.chain-caption[aria-hidden="false"]{visibility:visible}
.chain-actions{display:grid;gap:5px}.chain-reset{background:transparent;color:#c1d0d2;border:0;font-size:.8rem;min-height:40px;text-decoration:underline;text-underline-offset:4px;padding:6px}
.chain-reset:disabled{opacity:.55;text-decoration:none}.chain-actions .button[aria-disabled="true"]{cursor:default;background:#d4e1de;transform:none}
.chain-result{position:absolute;inset:0;display:grid;place-items:center;opacity:0;pointer-events:none;transition:opacity .25s}
.chain-result>span{background:#18343df5;color:var(--gold);border:1px solid #c6ad6c;border-radius:12px;padding:15px 22px;font-size:clamp(18px,2.2vw,26px);font-weight:750;text-align:center;box-shadow:0 8px 24px #102a3040}
.chain-demo[data-state="complete"] .chain-result{opacity:1}
.chain-demo[data-state="complete"] .chain-empty{opacity:.5}
@media(max-width:1050px){.chain-layout{gap:35px}.chain-demo{padding:24px}}
@media(max-width:760px){.chain-layout{grid-template-columns:minmax(0,1fr);gap:32px}.chain-demo{padding:24px}.chain-board-wrap{max-width:340px}.chain-color-path{margin-top:24px}.chain-copy .small-note{max-width:480px}}
@media(max-width:370px){.chain-demo{padding:18px}.chain-board{gap:7px}.chain-cell,.chain-face,.chain-empty{border-radius:8px}.chain-cursor{inset:8px;border-radius:7px}.chain-cursor svg{width:22px;height:22px}.chain-progress{gap:5px}.chain-progress>span{padding:5px 8px}.chain-under svg{width:9px;height:9px}}
@media(prefers-reduced-motion:reduce){.chain-cell.is-clearing .chain-face{opacity:.35}.chain-progress>span,.chain-result{transition:none}}

/* A pending tile belongs in NEXT. Keep the target cell visibly empty. */
.chain-cursor{inset:auto 4px 4px auto;width:23px;height:23px;border-radius:50%;background:var(--gold);border:1px solid #23444c}
.chain-cursor svg{width:16px;height:16px;max-width:none;max-height:none}
.chain-next{display:flex;align-items:center;justify-content:center;gap:9px;margin-top:19px;font-size:10px;letter-spacing:.09em;color:#c1d0d2}
.chain-next>span:last-child{display:grid;place-items:center;width:30px;height:30px;border-radius:7px;color:var(--ink)}
.chain-next svg{width:19px;height:19px}.chain-board-wrap{margin-top:17px}
.chain-demo:not([data-state="ready"]) .chain-next{visibility:hidden}

/* Score explanation follows the app's combo × chain order. */
.strategy-scoring{margin-top:24px;padding:22px 26px;background:#e9efec;border:1px solid var(--line);border-radius:12px;text-align:center}
.score-formula{font-size:.92rem;font-weight:700;color:var(--ink)}
.score-example,.score-total{margin-top:8px;font-size:.8rem}
.tile-obstacle{background:#98a29a}
.tile-obstacle>span{display:grid;place-items:center;width:100%;height:100%}
.obstacle-symbol{display:block;width:42%;height:42%;max-width:32px;max-height:32px}
@media(max-width:760px){.strategy-scoring{padding:20px;text-align:left}.score-formula{font-size:.87rem}}

/* Keep destinations readable under the translated, wrapping header. */
html{scroll-padding-top:var(--header-offset,132px)}
.document-nav,.condition-preview{top:var(--header-offset,140px)}
.legacy-anchor{scroll-margin-top:0}
.release-jump{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-weight:650;color:var(--teal);text-decoration:none}
.release-jump:hover{text-decoration:underline}
.release-line>[data-release-summary]{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.header-inner nav a[aria-current="page"]{color:var(--teal);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:8px}
.page-intro .intro-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
@media(max-width:760px){.document-nav,.condition-preview{position:static}}
@media print{.document-nav,.condition-preview{position:static}}

/* Localized Google Play badge keeps the supplied artwork and proportions. */
.play-badge-link{display:inline-flex;align-items:center;justify-content:center;flex:none;min-height:44px;border-radius:5px;text-decoration:none}
.play-badge{display:block;width:auto;height:54px;max-width:100%;object-fit:contain}
.store-links{align-items:center;gap:18px}
.store-links .play-badge{height:62px}
@media(max-width:370px){.hero-actions .play-badge{height:48px}.store-links .play-badge{height:54px}}