:root{--bg:#f8fafb;--surface:#fff;--ink:#142035;--muted:#64748b;--line:#e3e9ed;--teal:#008c91;--teal-dark:#00686d;--tint:#eaf8f7;--pink:#b72b80;--purple:#704ac0;--radius:12px;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg);font-size:15px;line-height:1.55}
*{box-sizing:border-box}body{margin:0}a{color:var(--teal-dark);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button,a,input,summary,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.6;cursor:wait}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #19b8b0;outline-offset:3px}button{border:0}h1,h2,h3,p{margin-top:0}h1{font-size:34px;letter-spacing:-1.2px;line-height:1.15;margin-bottom:12px}h2{font-size:18px;letter-spacing:-.35px;margin-bottom:8px}h3{font-size:14px;margin-bottom:4px}p{color:var(--muted)}.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}.header{background:#ffffffed;border-bottom:1px solid var(--line);position:relative;z-index:10}.header-inner{max-width:1240px;margin:auto;min-height:86px;display:flex;align-items:center;gap:32px;padding:0 28px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:19px;font-weight:800;white-space:nowrap;line-height:1.15}.brand:hover{text-decoration:none}.brand-mark{background:var(--teal);color:white;display:grid;place-items:center;width:36px;height:36px;border-radius:9px;font-size:36px;line-height:1}.brand-light{font-weight:400}.brand small{display:block;font-size:8px;font-weight:600;letter-spacing:2.2px;color:var(--muted);margin-top:7px}.desktop-nav{display:flex;align-items:center;gap:25px;font-size:13px;flex:1}.desktop-nav>a{color:var(--muted);padding:31px 0;border-bottom:2px solid transparent}.desktop-nav>a.active{color:var(--teal-dark);border-color:var(--teal);font-weight:700}.prototype-label{font-size:9px;letter-spacing:1.4px;color:var(--muted);white-space:nowrap}.more{position:relative}.more summary{list-style:none;cursor:pointer;color:var(--muted)}.more summary::-webkit-details-marker{display:none}.more summary span{margin-left:8px}.more>div{position:absolute;right:0;top:32px;width:190px;background:white;box-shadow:0 12px 35px #14203515;border:1px solid var(--line);padding:8px;border-radius:10px}.more a{display:block;padding:10px;border-radius:6px}.more a:hover{background:var(--tint)}.menu-button,.bottom-nav{display:none}.mobile-menu{padding:12px 24px;border-top:1px solid var(--line)}.mobile-menu a{display:block;padding:12px}.mobile-menu[hidden]{display:none}main{max-width:1184px;margin:auto;padding:48px 28px 60px;min-height:calc(100vh - 250px)}.eyebrow{font-size:10px;color:var(--teal-dark);letter-spacing:2px;font-weight:700;text-transform:uppercase;display:flex;align-items:center;gap:9px;margin-bottom:18px}.eyebrow:before{content:'';width:6px;height:6px;background:var(--teal);border-radius:50%}.page-heading{margin-bottom:32px}.page-heading p{max-width:660px;margin-bottom:0}.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:60px;padding:30px 0 46px;align-items:center}.hero h1{font-size:clamp(40px,4.5vw,58px);letter-spacing:-2.3px;max-width:550px}.hero h1 em{font-style:normal;color:var(--teal)}.hero p{max-width:450px;font-size:16px}.home-form{display:flex;gap:10px;margin-top:28px}.home-form input{min-width:0}.hero-art{padding:36px 30px;border:1px solid var(--line);background:linear-gradient(150deg,#eef9f7,#fff 75%);border-radius:18px;position:relative;text-align:center}.hero-art .digits{justify-content:center;margin:32px 0 22px}.hero-art .digits span{font-size:31px;width:46px;height:66px;box-shadow:0 5px 0 #ddeeea;background:white}.hero-art h3{font-size:15px}.hero-art p{font-size:12px;margin:0}.art-note{font-size:10px;letter-spacing:2px;color:var(--teal-dark)}.section-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.section-heading p{font-size:12px;margin:0}.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.tool-card{display:block;color:var(--ink);padding:22px;background:white;border:1px solid var(--line);border-radius:var(--radius);transition:transform .18s,border-color .18s}.tool-card:hover{transform:translateY(-3px);border-color:#70bfb9;text-decoration:none}.tool-card p{font-size:12px;margin:8px 0 15px}.tool-card .arrow{color:var(--teal);font-size:12px}.icon-box{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;font-size:24px;margin-bottom:20px;background:var(--tint);color:var(--teal-dark)}.tool-card:nth-child(3n+2) .icon-box{background:#f2edfc;color:var(--purple)}.tool-card:nth-child(3n) .icon-box{background:#fff3e4;color:#a66a12}.workspace{display:grid;grid-template-columns:340px minmax(0,1fr);gap:24px;align-items:start}.panel{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 2px 4px #14203502}.panel p{font-size:13px;margin-bottom:22px}.panel+.panel{margin-top:20px}.panel-label{font-size:10px;font-weight:700;letter-spacing:1.3px;color:var(--muted);text-transform:uppercase}.field{display:block;margin:20px 0 8px;font-size:12px;font-weight:700}.field:first-child{margin-top:0}input,textarea,select{width:100%;border:1px solid #cfd8df;border-radius:7px;background:#fff;color:var(--ink);padding:12px 14px}input.numeric{font:600 23px var(--mono);letter-spacing:1px}input::placeholder,textarea::placeholder{color:#8995a5;font-size:14px;font-weight:400;letter-spacing:0}textarea{resize:vertical;min-height:175px;font-family:var(--mono);font-size:13px}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 20px;min-height:44px;border-radius:7px;font-weight:600;font-size:13px}.primary{background:var(--teal);color:white}.primary:hover{background:var(--teal-dark);text-decoration:none}.secondary{background:white;border:1px solid var(--line);color:var(--ink)}.secondary:hover{background:var(--bg);text-decoration:none}.full{width:100%;margin-top:14px}.hint{font-size:11px;color:var(--muted);margin:8px 0 0}.error{color:#b42318;font-size:12px;min-height:18px;margin:8px 0}.examples{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}.example{padding:5px 8px;border:1px solid var(--line);background:var(--bg);border-radius:5px;color:var(--muted);font-family:var(--mono);font-size:11px}.sub-divider{border-top:1px solid var(--line);margin-top:26px;padding-top:22px}.big-number{font-family:var(--mono);font-weight:700;font-size:clamp(35px,4vw,56px);letter-spacing:-1px;margin:12px 0 14px;overflow-wrap:anywhere;line-height:1.2}.result-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.chip{display:inline-flex;align-items:center;gap:5px;border-radius:6px;padding:5px 9px;font-size:11px;font-weight:600;background:var(--tint);color:var(--teal-dark);border:1px solid transparent}.chip.pink{background:#fceaf5;color:var(--pink)}.chip.purple{background:#f1eafb;color:var(--purple)}.chips{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:24px}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0}.stat{border:1px solid var(--line);border-radius:8px;padding:14px;min-width:0}.stat small{display:block;font-size:10px;color:var(--muted);margin-bottom:6px}.stat strong{font:600 20px var(--mono);overflow-wrap:anywhere}.callout{background:#eef8f7;border:1px solid #d9efeb;border-radius:7px;padding:14px 16px;font-size:12px;color:#34615d;line-height:1.7}.callout.warning{background:#fff8e9;border-color:#f5e2b8;color:#805d22}.result-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px}.digits{display:flex;gap:6px;margin:16px 0;flex-wrap:wrap}.digits span{display:grid;place-items:center;width:38px;height:43px;background:var(--tint);border:1px solid #cce8e5;border-radius:6px;font:600 19px var(--mono)}.digits span:nth-child(2n){background:#f2ecfb;border-color:#e5d9f7}.detail-table{width:100%;border-collapse:collapse;font-size:12px;margin-top:15px}.detail-table th,.detail-table td{padding:13px 8px;border-bottom:1px solid var(--line);text-align:left}.detail-table th{font-weight:400;color:var(--muted)}.detail-table td{font-family:var(--mono)}.roll-box{text-align:center;background:linear-gradient(140deg,#eef9f7,#f8fafb);padding:40px 16px;border:1px solid #d1e7e4;border-radius:10px;margin:22px 0}.roll-box .big-number{font-size:48px}.history-row{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);font-size:12px}.history-row>a{font:700 19px var(--mono);color:var(--ink)}.history-row time{margin-left:auto;font-size:10px;color:var(--muted)}.empty{padding:42px 12px;text-align:center;color:var(--muted);font-size:13px}.badge-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,1fr);gap:24px}.filters{display:flex;gap:8px;margin:17px 0 23px;flex-wrap:wrap}.filter{border:1px solid var(--line);background:white;border-radius:20px;padding:7px 15px;font-size:12px;color:var(--muted)}.filter.active{background:var(--teal);color:white;border-color:var(--teal)}.badge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.badge-card{text-align:left;background:white;border:1px solid var(--line);border-radius:9px;padding:18px;min-height:150px;color:var(--ink)}.badge-card.selected{border-color:var(--teal);background:#f4fbfa}.badge-card p{font-size:11px;margin:8px 0 0}.badge-card .icon-box{margin-bottom:12px}.badge-detail .icon-box{width:56px;height:56px;font-size:30px}.badge-detail h2{font-size:24px}.badge-detail dl{font-size:12px}.badge-detail dt{color:var(--muted);margin-top:20px}.badge-detail dd{margin:5px 0}.probability{font:700 62px var(--mono);color:var(--teal);letter-spacing:-3px;margin:24px 0 5px}.meter{height:8px;background:#e9efef;border-radius:20px;margin:22px 0;overflow:hidden}.meter>span{display:block;height:100%;background:var(--teal)}.formula{padding:18px;background:var(--bg);border:1px solid var(--line);border-radius:8px;font-family:var(--mono);font-size:15px;margin:20px 0}.near-compare{display:grid;grid-template-columns:1fr 35px 1fr;align-items:center;gap:10px;margin:22px 0}.near-compare>div{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:20px 12px}.near-compare strong{font:700 clamp(21px,3vw,32px) var(--mono);display:block}.near-compare small{color:var(--muted);font-size:10px}.near-compare>span{text-align:center;color:var(--teal);font-size:24px}.text-link{background:none;color:var(--teal-dark);font-size:12px;padding:4px}.status-line{display:flex;align-items:center;gap:12px;font-size:11px;color:var(--muted);margin-top:25px}.status-line:before{content:'';width:6px;height:6px;background:var(--teal);border-radius:50%}footer{border-top:1px solid var(--line);max-width:1128px;margin:0 auto;padding:25px 0 30px;font-size:10px;color:var(--muted)}footer p{margin:8px 0}.footer-brand{font-size:12px;color:var(--ink)}.footer-brand span{color:#b5c2ce;margin:0 8px}#toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;border-radius:8px;padding:12px 22px;font-size:13px;z-index:30;display:none;max-width:90vw}#toast.show{display:block}.skip{position:fixed;top:-100px;left:10px;background:white;padding:12px;z-index:50}.skip:focus{top:10px}.check-label{display:flex;align-items:center;gap:8px;font-size:12px;margin:13px 0}.check-label input{width:auto;accent-color:var(--teal)}.fade-in{animation:appear .22s ease-out}@keyframes appear{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
@media(max-width:1100px){.header-inner{gap:23px}.desktop-nav{gap:17px}.prototype-label{display:none}.workspace{grid-template-columns:300px minmax(0,1fr)}.tool-grid{grid-template-columns:repeat(3,1fr)}.hero{gap:30px}.hero-art{padding:25px 15px}.hero-art .digits span{width:35px;font-size:26px}.badge-grid{grid-template-columns:repeat(2,1fr)}footer{margin:0 28px}}
@media(max-width:800px){.header-inner{min-height:72px}.desktop-nav{display:none}.menu-button{display:inline-flex;margin-left:auto;padding:8px 14px;font-size:20px}.workspace{grid-template-columns:260px minmax(0,1fr);gap:16px}.panel{padding:20px}.stat-grid{grid-template-columns:repeat(2,1fr)}.hero{grid-template-columns:1fr 1fr}.hero h1{font-size:42px}.home-form{flex-direction:column}.badge-layout{grid-template-columns:1fr 1fr;gap:16px}.badge-grid{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(2,1fr)}.probability{font-size:48px}.near-compare{grid-template-columns:1fr}.near-compare>span{transform:rotate(90deg)}}
@media(max-width:600px){.header-inner{padding:0 20px;min-height:70px}.brand{font-size:18px}.brand small{font-size:7px}main{padding:30px 20px 40px;min-height:70vh}.hero{display:block;padding:5px 0 32px}.hero h1{font-size:42px;letter-spacing:-1.6px}.hero p{font-size:14px}.hero-art{display:none}.home-form{flex-direction:row;gap:8px}.home-form input{font-size:20px}.home-form button{padding:10px 17px}.section-heading{align-items:flex-start}.section-heading p{display:none}.tool-grid{gap:12px}.tool-card{padding:18px 14px}.tool-card h3{font-size:13px}.tool-card p{font-size:11px}.tool-card .icon-box{margin-bottom:15px}.workspace,.badge-layout{grid-template-columns:1fr;gap:20px}.panel{padding:21px}.page-heading{margin-bottom:24px}h1{font-size:29px}.page-heading p{font-size:13px}.stat-grid{grid-template-columns:repeat(2,1fr)}.big-number{font-size:42px}.badge-grid{grid-template-columns:repeat(2,1fr)}.badge-card{padding:15px}.near-compare{grid-template-columns:1fr 22px 1fr;gap:7px}.near-compare>span{transform:none}.near-compare strong{font-size:23px}.near-compare>div{padding:18px 10px}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;background:#fffffff5;backdrop-filter:blur(10px);border-top:1px solid var(--line);z-index:15;justify-content:space-around;padding:8px 10px max(10px,env(safe-area-inset-bottom))}.bottom-nav a{display:flex;flex-direction:column;align-items:center;min-width:75px;font-size:10px;color:var(--muted)}.bottom-nav a span{font-size:22px;line-height:1.2}.bottom-nav a.active{color:var(--teal);font-weight:700}footer{margin:0 20px;padding-bottom:100px}#toast{bottom:85px}.result-actions>*{flex:1}.status-line{font-size:10px}.error{margin-bottom:0}.hero .eyebrow{font-size:9px}.probability{font-size:58px}}
.workspace>.panel{margin-top:0}.primary{white-space:nowrap}.error:empty{min-height:0;margin:0}.panel p.error:empty{margin:0}.panel .sub-divider .hint{margin-bottom:0}
@media(min-width:801px){.menu-button{display:none}}
@media(max-width:600px){.workspace>aside.panel>p{margin-bottom:14px}.workspace>aside.panel .sub-divider{margin-top:18px;padding-top:15px}.workspace>aside.panel .field{margin-top:12px}.panel{box-shadow:none}}
/* Reference refinement: quiet game canvas, compact chrome, outlined badges. */
main:focus{outline:none}.hero h1 br{display:block!important}
:root{--bg:#fafafa;--ink:#111827;--muted:#6b7280;--line:#e2e5ea;--teal:#171717;--teal-dark:#111827;--tint:#f6f7f9;--pink:#d92873;--purple:#7960a5;--radius:7px;font-size:14px}
.header{background:var(--bg);border-bottom:0}.header-inner{max-width:none;min-height:58px;padding:0 24px;gap:32px}.brand{font-size:18px;letter-spacing:1px}.brand-mark,.brand small{display:none}.brand-light{font-size:13px;letter-spacing:0}.desktop-nav{font-size:11px;gap:23px}.desktop-nav>a{padding:18px 0;border:0}.desktop-nav>a.active{text-decoration:underline;text-underline-offset:5px}.prototype-label{font-size:8px;letter-spacing:1px}
main{max-width:980px;padding-top:60px}.hero{display:flex;flex-direction:column;gap:42px;padding:35px 0 58px;text-align:center}.hero>div:first-child{width:100%;max-width:420px}.hero .eyebrow{justify-content:center;letter-spacing:1.5px;font-size:9px;color:var(--muted)}.eyebrow:before{display:none}.hero h1{font-family:var(--mono);font-size:36px;line-height:1.2;letter-spacing:-1.5px;margin:24px 0 18px}.hero h1 br{display:none}.hero h1 em{color:var(--ink)}.hero p{font-size:14px;line-height:1.7;margin-bottom:22px}.home-form{margin-top:26px;gap:8px}.home-form input{text-align:center;font-size:25px}.hero .examples{justify-content:center}.hero-art{width:350px;max-width:100%;border-radius:7px;background:#fff;padding:22px 24px 24px}.art-note{font-size:10px;letter-spacing:.7px;color:var(--muted);font-weight:700}.hero-art .digits{margin:28px 0 24px;gap:0;padding:20px 9px;border:2px solid #f7acd7;border-radius:10px;width:max-content;max-width:100%;margin-left:auto;margin-right:auto;background:linear-gradient(135deg,#fff0f7,#f4f0ff 55%,#e7faff);box-shadow:0 0 30px #f8c5e34d}.hero-art .digits span{width:35px;height:43px;font-size:33px;background:none;border:0;box-shadow:none}.hero-art h3{font-family:var(--mono);font-size:12px;font-weight:400;letter-spacing:.2px}.hero-art p{font-size:11px;margin:0}.section-heading{border-bottom:1px solid var(--line);padding-bottom:12px}.section-heading h2{font-size:14px}.tool-grid{gap:0;grid-template-columns:repeat(4,1fr)}.tool-card{border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent!important;padding:22px 16px}.tool-card:hover{transform:none;background:#f3f4f6!important}.tool-card p{line-height:1.6}.icon-box,.tool-card:nth-child(3n+2) .icon-box,.tool-card:nth-child(3n) .icon-box{background:none;color:#687080;border-radius:0;width:28px;height:28px;font-size:23px;margin-bottom:12px}.tool-card .arrow{color:#6b7280;font-size:11px}.primary{background:#171717;border:1px solid #171717;border-radius:5px}.primary:hover{background:#353535}.secondary,input,textarea,select{border-radius:5px}.page-heading{text-align:center;margin:0 auto 36px}.page-heading .eyebrow{justify-content:center;color:var(--muted);font-size:9px}.page-heading p{margin-left:auto;margin-right:auto;font-size:13px}h1{font-size:29px;letter-spacing:-.8px}.workspace{grid-template-columns:290px minmax(0,1fr);gap:22px}.panel{padding:24px;box-shadow:none}.panel h2{font-size:16px}.chip{border-radius:20px;padding:3px 8px;font-size:10px;background:#fafafa;border-color:#dce0e7;font-weight:400;color:#536073}.chip.pink{background:#fff5fa;border-color:#f5add3;color:#d92873}.chip.purple{background:#fbf8ff;border-color:#d8cbed;color:#7960a5}.big-number{font-size:52px;text-align:center;margin:25px 0}.chips{justify-content:center}.stat{border:0;border-radius:0;text-align:center;border-right:1px solid var(--line);padding:10px}.stat:last-child{border-right:0}.stat small{text-transform:uppercase;font-size:9px;letter-spacing:.6px}.stat strong{font-size:21px}.callout{background:#fafafa;border-color:#eceef1;color:#636b78;font-size:12px}.roll-box{background:linear-gradient(135deg,#fff2f8,#f5f1ff 55%,#ecfbff);border-color:#f2bcdb;border-radius:8px}.badge-card.selected{background:#fff8fc;border-color:#edacd0}.badge-detail .icon-box{margin:0 auto 22px}.badge-detail>.result-top{justify-content:center;gap:16px}.badge-detail>p{text-align:center}.filter.active{background:#171717;border-color:#171717}.probability{color:var(--ink)}.meter>span{background:#171717}.digits span{background:#f9f5fc;border-color:#eadcec}.digits span:nth-child(2n){background:#f1f8fb;border-color:#dcebf0}.status-line:before{background:#9ca3af}.text-link{color:#64748b}footer{text-align:center;max-width:924px;border:0;padding-top:44px}.bottom-nav a.active{color:#111827}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline-color:#7d94b6}
@media(max-width:900px){.tool-grid{grid-template-columns:repeat(2,1fr)}.workspace{grid-template-columns:260px minmax(0,1fr)}}
@media(max-width:800px){.header-inner{min-height:56px}.menu-button{font-size:16px;padding:5px 10px;min-height:34px}.home-form{flex-direction:row}.hero{padding-top:16px}.hero h1{font-size:34px}}
@media(max-width:600px){.header-inner{padding:0 16px;gap:12px}.brand{font-size:16px}main{padding:38px 18px 32px}.hero{gap:34px;padding:8px 0 42px}.hero h1{font-size:30px;margin-top:18px}.hero p{font-size:13px}.hero-art{display:block;width:320px}.hero-art .digits span{width:33px}.hero .eyebrow{font-size:8px}.tool-card{padding:20px 12px}.workspace{grid-template-columns:1fr}.panel{padding:21px}.page-heading{margin-bottom:28px}.stat-grid{grid-template-columns:repeat(3,1fr);gap:0}.stat strong{font-size:18px}.stat small{font-size:8px}.big-number{font-size:43px}.bottom-nav{background:#fffffff5}.hero .home-form button{padding:10px 16px}.badge-detail .result-top{flex-wrap:wrap}footer{padding-top:30px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}