:root{--ink:#183d42;--muted:#617378;--paper:#fffdf7;--bg:#f2eee4;--line:#dcded2;--gold:#c38a48;--soft:#e8eeea;--red:#a33738;--green:#246d53;--shadow:0 18px 55px #183d420b;font-family:Segoe UI,system-ui,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,select,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--gold);outline-offset:3px}a{color:inherit}button{touch-action:manipulation}.skip{position:absolute;left:12px;top:-70px;padding:12px;background:var(--ink);color:white;z-index:9}.skip:focus{top:8px}.topbar{max-width:1280px;margin:auto;padding:27px 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#e3e2d6;border-radius:17px;box-shadow:var(--shadow);overflow:hidden}.paper-body{padding:34px}.eyebrow{font-size:10px;text-transform:uppercase;letter-spacing:.18em;color:var(--gold);font-weight:700;margin:0 0 12px}h1,h2,h3{font-family:Georgia,Cambria,serif;font-weight:400;letter-spacing:-.035em}h1{font-size:clamp(30px,3.1vw,45px);line-height:1.12;margin:0 0 14px}h2{font-size:29px;line-height:1.2;margin:0 0 13px}h3{font-size:22px;margin:0 0 10px}p{line-height:1.7}.lead{font-size:14px;color:var(--muted);max-width:650px;margin:0 0 24px}.primary,.secondary,.text-button{border:1px solid var(--ink);border-radius:7px;padding:12px 18px;min-height:44px;font-weight:600;font-size:12px;background:var(--ink);color:white;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}.secondary{background:transparent;color:var(--ink);border-color:#cbd2c9}.text-button{background:none;color:var(--muted);border-color:transparent;padding:8px}.primary:hover{background:#245158}.secondary:hover{background:var(--soft)}.button-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.hero-scene{height:215px;position:relative;background:#183d42;overflow:hidden}.hero-scene svg{width:100%;height:100%;display:block}.scene-caption{position:absolute;bottom:17px;left:27px;font-size:10px;letter-spacing:.18em;color:#f2ead6;text-transform:uppercase}.intro-copy{padding:30px 35px}.intro-copy .lead{margin-bottom:15px}.intro-details{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:24px 0;border-block:1px solid var(--line);padding:20px 0}.intro-details strong{font-size:12px;display:block;margin-bottom:5px}.intro-details p{font-size:12px;color:var(--muted);line-height:1.6;margin:0}.intro-note{font-size:11px;color:var(--muted);margin:17px 0 0}.game-header{padding:28px 32px 21px;border-bottom:1px solid var(--line)}.game-header .lead{margin:0;font-size:13px}.game-header h1{font-size:32px}.game-layout{display:grid;grid-template-columns:minmax(280px,1fr) minmax(165px,.55fr);gap:25px;padding:28px 30px}.board-area{min-width:0}.sudoku{display:grid;grid-template-columns:repeat(9,1fr);border:2px solid var(--ink);width:100%;max-width:430px;aspect-ratio:1;margin-inline:auto;overflow:hidden;border-radius:3px;background:white}.cell{border:0;border-right:1px solid #c8d5d1;border-bottom:1px solid #c8d5d1;display:grid;place-items:center;background:#fffefa;min-width:0;padding:0;position:relative;color:#286b78;font-size:clamp(16px,2vw,24px);font-weight:500;font-variant-numeric:tabular-nums}.cell:nth-child(9n){border-right:0}.cell:nth-child(n+73){border-bottom:0}.cell:nth-child(9n+3),.cell:nth-child(9n+6){border-right:2px solid var(--ink)}.cell:nth-child(n+19):nth-child(-n+27),.cell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid var(--ink)}.cell.given{color:var(--ink);font-weight:650;background:#f3f4ed}.cell.peer{background:#edf2ed}.cell.same{background:#e4eeea}.cell.center::after{content:'';position:absolute;inset:2px;border:1px solid var(--gold);pointer-events:none}.cell.selected{background:#cee1dc;box-shadow:inset 0 0 0 2px var(--ink);z-index:1}.cell.wrong{color:var(--red);background:#fce8e3}.board-tools{max-width:430px;margin:17px auto 0}.number-pad{display:grid;grid-template-columns:repeat(9,1fr);gap:4px}.number-pad button{min-height:43px;min-width:0;border:1px solid #c9d3c9;background:#edf1e8;border-radius:5px;font-size:17px;color:var(--ink)}.number-pad button:hover{background:#dce9e2}.edit-tools{display:flex;gap:6px;justify-content:space-between;margin-top:10px}.edit-tools button{padding:9px 7px;font-size:11px;min-height:40px}.board-caption{font-size:10px;line-height:1.6;color:var(--muted);margin:10px 0 0}.guide{font-size:12px;line-height:1.65;color:var(--muted);display:flex;flex-direction:column;align-items:stretch;gap:12px}.guide .eyebrow{margin:0}.guide p{margin:0}.guide strong{color:var(--ink)}.hintbox{padding:15px 0;border-block:1px solid var(--line)}details summary{cursor:pointer;color:var(--ink);font-size:12px;font-weight:600;padding:8px 0}details p{margin:9px 0 0}.feedback{font-size:12px;line-height:1.6;margin-top:14px;padding:12px 14px;border-left:3px solid var(--gold);background:#f4f0e3;color:var(--ink)}.feedback:empty{display:none}.feedback.success{border-color:var(--green);background:#e9f3e9}.feedback.error{border-color:var(--red);background:#faedE7}.game-footer{border-top:1px solid var(--line);padding:18px 30px;display:flex;align-items:center;justify-content:space-between;gap:12px}.game-footer p{font-size:11px;color:var(--muted);margin:0}.puzzle-content{padding:25px 30px}.clues{margin:0;padding-left:24px;font-size:12px;line-height:1.6;display:grid;gap:8px;color:var(--muted)}.clues li{padding-left:4px}.clues li::marker{color:var(--gold);font-weight:700}.logic-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:25px}.clue-panel{padding:17px 20px;background:#f2f2e8;border:1px solid #e3e4d7;border-radius:8px}.clue-panel h3{font-size:20px}.logic-clues{grid-template-columns:1fr 1fr;column-gap:25px}.logic-form{display:grid;gap:12px}.logic-person{padding:15px 17px;border:1px solid var(--line);border-radius:9px;background:#fffefa}.person-label{font-weight:650;font-size:13px;display:block;margin-bottom:12px}.logic-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}label .field-label{display:block;font-size:10px;color:var(--muted);margin-bottom:6px}select{width:100%;min-height:42px;border:1px solid #c8d2c8;border-radius:6px;color:var(--ink);background:#fffef8;font-size:12px;padding:8px 6px}select.invalid{border:2px solid var(--red);background:#fff0e9}.deduction-question{margin-top:18px;padding:17px;border:1px dashed #bfc9bc;border-radius:8px;font-size:12px;line-height:1.65}.spatial-layout{display:grid;grid-template-columns:minmax(240px,1fr) minmax(170px,.7fr);gap:25px}.spatial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;align-self:start}.slot{border:1px solid #c8d2c8;border-radius:9px;min-height:116px;background:#f5f4e9;position:relative;padding:25px 6px 8px;text-align:center}.slot-number{position:absolute;left:10px;top:8px;font-size:10px;color:var(--muted)}.slot.locked{background:#e8efdf}.slot.invalid{border:2px solid var(--red)}.slot svg{width:31px;height:31px;stroke:var(--ink);fill:none;stroke-width:1.5;display:block;margin:0 auto 8px}.slot select{font-size:10px;min-height:35px;padding:5px 2px;border-color:#d8dcd0}.slot .object-name{font-size:11px;font-weight:600;display:block;margin-top:8px}.spatial-help{font-size:10px;color:var(--muted);line-height:1.6;margin:11px 0 0}.passport-page{padding:32px}.passport-card{border:1px solid #a8b9a7;border-radius:13px;padding:26px;max-width:570px;background:repeating-linear-gradient(130deg,transparent,transparent 15px,#183d4203 15px,#183d4203 16px)}.passport-top{display:flex;align-items:center;justify-content:space-between;gap:15px}.passport-top span{font-size:11px;letter-spacing:.08em;text-transform:uppercase}.stamp{font-family:Georgia,serif;font-size:22px;color:var(--gold);border:2px solid;border-radius:50%;width:70px;height:70px;display:grid;place-items:center;transform:rotate(-12deg)}.passport-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:23px}.passport-fields input{width:100%;max-width:100px;font-family:Georgia,serif;font-size:30px;text-align:center;min-height:64px;border:0;border-bottom:1px solid #8fa494;background:#fffdf7;color:var(--ink);border-radius:5px 5px 0 0}.passport-fields .field-label{font-size:11px}.journal{margin-top:28px}.journal label{font-family:Georgia,serif;font-size:23px}.journal p{font-size:12px;color:var(--muted);margin:9px 0}.journal textarea{width:100%;min-height:140px;padding:13px 15px;resize:vertical;border:1px solid #ccd2c5;border-radius:7px;line-height:1.8;background:#fffef9;color:var(--ink);font-size:13px}.completion{margin-top:20px;border-top:1px solid var(--line);padding-top:19px}.completion h3{color:var(--green)}.completion p{font-size:13px;color:var(--muted)}footer{max-width:1280px;margin:0 auto;display:flex;justify-content:space-between;gap:20px;padding:20px 40px;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}footer span span{padding:0 5px;color:var(--gold)}dialog{border:1px solid var(--line);border-radius:15px;max-width:430px;background:var(--paper);color:var(--ink);padding:28px;box-shadow:var(--shadow)}dialog::backdrop{background:#152e3370}dialog p{font-size:13px;color:var(--muted)}[hidden]{display:none!important}.muted{color:var(--muted)}
@media(max-width:1000px){.layout{padding:25px;gap:22px;grid-template-columns:180px minmax(0,1fr)}.topbar{padding-inline:25px}.game-layout{grid-template-columns:1fr;padding:23px}.guide{display:grid;grid-template-columns:1fr 1fr;font-size:12px}.guide .hintbox{border:0;padding:0}.game-footer{padding:17px 23px}.spatial-layout{grid-template-columns:1fr}.spatial-grid{max-width:430px;margin:auto;width:100%}.journey-banner{padding-inline:25px}}
@media(max-width:700px){.topbar{padding:19px 17px}.wordmark{font-size:17px;gap:9px}.wordmark small{font-size:9px}.snowmark{font-size:34px}.sample-label{display:none}.top-actions{gap:0}.journey-banner{padding:10px 17px;font-size:10px}.layout{display:block;padding:17px 12px 35px}.sidebar{padding-top:0}.route-heading,.route-meter,.passport-mini{display:none}nav{display:flex;gap:5px;overflow-x:auto;padding:0 0 16px;scrollbar-width:thin}.step{width:auto;flex:none;font-size:10px;padding:6px 8px;gap:6px}.step .step-index{width:23px;height:23px;font-size:10px}.step .step-title{max-width:80px}.paper{border-radius:12px}.game-header{padding:22px 20px 17px}.game-header h1{font-size:29px}.intro-copy{padding:24px 22px}.hero-scene{height:180px}.intro-details{gap:15px}.intro-details p{font-size:11px}.game-layout{padding:20px 17px;gap:22px}.guide{grid-template-columns:1fr}.guide>.hintbox{display:none}.number-pad{gap:4px}.number-pad button{min-height:44px}.edit-tools{gap:3px}.edit-tools button{font-size:10px;padding:8px 4px}.game-footer{padding:15px 17px;align-items:center}.game-footer p{max-width:160px;font-size:10px}.game-footer .primary{padding:11px 13px;font-size:11px}.puzzle-content,.passport-page{padding:20px 17px}.logic-clues{grid-template-columns:1fr}.logic-person{padding:14px 12px}.logic-fields{grid-template-columns:1fr}.logic-fields label{display:grid;grid-template-columns:65px 1fr;align-items:center}.logic-fields label .field-label{margin:0;font-size:11px}select{font-size:13px}.slot{min-height:112px}.passport-card{padding:20px 17px}.passport-fields{gap:10px}.passport-fields .field-label{font-size:10px}.passport-fields input{min-height:56px;font-size:26px}footer{padding:18px 17px;font-size:9px;flex-direction:column;gap:7px}.primary,.secondary{font-size:11px}.lead{font-size:13px}}
.hero-scene{height:clamp(200px,26vw,310px)}.hero-scene img{width:100%;height:100%;object-fit:cover;object-position:65% 48%;display:block}.hero-scene::after{content:'';position:absolute;inset:55% 0 0;background:linear-gradient(transparent,#102f39b3);pointer-events:none}.scene-caption{z-index:1}#install-app{font-size:11px;min-height:36px;padding:8px 12px}@media(max-width:700px){.hero-scene{height:200px}.top-actions{gap:7px}#install-app{font-size:10px;padding:7px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.eyebrow{color:#8a5a1f}
.save-summary{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:8px}.save-summary .secondary{padding:5px 10px;min-height:36px}.save-summary #save-status{font-weight:400;color:var(--muted)}#save-choice-error:empty{display:none}