@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.static{position:static}.inline{display:inline}.table{display:table}}:root{color:#302c29;font-synthesis:none;--ink:#302c29;--muted:#716962;--paper:#fffdf8;--sand:#ece2d3;--line:#d9cebe;--accent:#e15832;--accent-dark:#b93e20;--green:#53755b;--shadow:0 24px 70px #4c3a2a1f;background:#f7f2e9;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 15% 12%,#fffaf0 0,#0000 30%),#f7f2e9;min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}a{color:inherit}.app-shell{flex-direction:column;width:min(1180px,100% - 40px);min-height:100vh;margin:0 auto;display:flex}.site-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:96px;display:flex}.brand{align-items:center;gap:12px;text-decoration:none;display:inline-flex}.brand-mark{color:#fff;background:var(--ink);border-radius:13px;place-items:center;width:48px;height:48px;font-family:Georgia,serif;font-weight:800;display:grid}.brand strong,.brand small{display:block}.brand strong{letter-spacing:.04em;font-size:18px}.brand small{color:var(--muted);margin-top:2px;font-size:11px}.text-button,footer button{color:var(--muted);background:0 0;border:0;border-bottom:1px solid;padding:3px 0;font-size:13px}main{flex:1}.hero{grid-template-columns:1fr 1.1fr;align-items:end;gap:64px;padding:58px 0 48px;display:grid}.eyebrow{color:var(--accent);letter-spacing:.18em;text-transform:uppercase;margin:0 0 10px;font-size:11px;font-weight:800}h1{letter-spacing:-.04em;max-width:600px;margin:0;font-family:Georgia,Songti SC,serif;font-size:clamp(46px,6vw,76px);font-weight:500;line-height:.98}h1 em{color:var(--accent);font-weight:500}.steps{border-top:1px solid var(--line);grid-template-columns:repeat(3,1fr);gap:0;margin:0;padding:0;list-style:none;display:grid}.steps li{padding:18px 20px 0 0}.steps li+li{border-left:1px solid var(--line);padding-left:20px}.steps span{color:var(--accent);font-family:Georgia,serif;font-size:13px;font-style:italic}.steps p{color:var(--muted);margin:8px 0 0;font-size:12px;line-height:1.5}.steps strong{color:var(--ink);font-size:14px;display:block}.workspace{background:var(--paper);box-shadow:var(--shadow);border:1px solid #d9cebecc;border-radius:28px;grid-template-columns:minmax(0,1.05fr) minmax(340px,.95fr);display:grid;overflow:visible}.board-section{border-right:1px solid var(--line);min-width:0;padding:clamp(24px,4vw,48px)}.section-heading{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.section-heading h2,.dialog h2{margin:0;font-family:Georgia,Songti SC,serif;font-size:28px;font-weight:500}.status-dot{background:#b8afa5;border-radius:99px;width:9px;height:9px;box-shadow:0 0 0 7px #eee9e1}.status-dot.confirmed,.status-dot.recommended{background:var(--green);box-shadow:0 0 0 7px #e2ebe3}.status-dot.solving{background:var(--accent);animation:1.2s infinite pulse;box-shadow:0 0 0 7px #fae5de}.board{background:#b7a995;border-radius:18px;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(7px,1.2vw,12px);padding:clamp(8px,1.4vw,14px);display:grid;position:relative}.cell-wrap{aspect-ratio:1;min-width:0;position:relative}.tile-input,.spawn-cell{text-align:center;letter-spacing:-.04em;border:0;border-radius:11px;outline:none;width:100%;min-width:0;height:100%;font-size:clamp(20px,3.2vw,36px);font-weight:800;transition:box-shadow .15s,transform .15s}.tile-input:focus{box-shadow:inset 0 0 0 4px var(--accent),0 7px 16px #302c291f;transform:translateY(-1px)}.tile-input[aria-invalid=true]{box-shadow:inset 0 0 0 3px #b32c23}.tile-empty{color:var(--ink);background:#ffffff42}.tile-2{color:#544c45;background:#eee6d9}.tile-4{color:#544c45;background:#e9d8b8}.tile-mid{color:#fff9ef;background:#df8c55}.tile-high{color:#fffaf3;background:#da6040}.tile-peak{color:#fff4d7;background:#403631;font-size:clamp(15px,2.5vw,29px)}.spawn-cell{color:#fff;background:#fff3;border:2px dashed #ffffff94;place-items:center;display:grid}.spawn-cell:hover,.cell-wrap.selected .spawn-cell{background:#ffffff5c;border-style:solid}.spawn-cell span{font-size:25px}.spawn-picker{z-index:10;background:var(--ink);border-radius:10px;gap:6px;padding:6px;display:flex;position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%);box-shadow:0 8px 25px #0000003d}.spawn-picker:after{content:"";border:6px solid #0000;border-top-color:var(--ink);position:absolute;top:100%;left:50%;transform:translate(-50%)}.spawn-picker button{background:#eee6d9;border:0;border-radius:6px;width:43px;height:38px;font-weight:800}.spawn-picker button+button{background:#e9d8b8}.cell-error{z-index:8;color:#fff;text-align:center;background:#7c231c;border-radius:4px;padding:3px;font-size:8px;line-height:1.15;position:absolute;top:calc(100% + 2px);left:2px;right:2px}.board-note{color:var(--muted);text-align:center;margin:14px 0 0;font-size:11px}.control-panel{flex-direction:column;min-width:0;padding:clamp(24px,4vw,48px);display:flex}.panel-status{min-height:72px}.panel-status>p{margin:10px 0 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19px;padding:24px}.recommendation.active{background:var(--ink);color:#fff}.recommendation.active .eyebrow{color:#f9a17e}.recommendation-value{align-items:center;gap:22px;display:flex}.recommendation-value span{color:#ff805a;font-family:Georgia,serif;font-size:68px;line-height:1}.recommendation-value strong{font-family:Georgia,Songti SC,serif;font-size:28px;font-weight:500}.recommendation-empty{color:#9d9489;align-items:center;gap:18px;display:flex}.recommendation-empty>span{font-family:Georgia,serif;font-size:54px}.recommendation-empty p{margin:0;font-size:13px}.thinking{color:var(--muted);align-items:center;gap:6px;margin-top:26px;font-size:13px;display:flex}.thinking i{background:var(--accent);border-radius:50%;width:7px;height:7px;animation:1s infinite alternate bounce}.thinking i:nth-child(2){animation-delay:.2s}.thinking i:nth-child(3){animation-delay:.4s}.thinking span{margin-left:7px}.direction-grid{grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:16px;display:grid}.direction-grid button{border:1px solid var(--line);background:var(--paper);color:var(--muted);border-radius:10px;flex-direction:column;align-items:center;gap:2px;padding:10px 5px;display:flex}.direction-grid button:disabled{opacity:.38}.direction-grid button.recommended{border-color:var(--accent);color:var(--accent);opacity:1;background:#fff2ed}.direction-grid span{font-size:22px}.direction-grid small{font-size:9px}.button{border:0;border-radius:11px;padding:14px 18px;font-weight:800}.button.primary{background:var(--accent);color:#fff;width:100%;box-shadow:0 8px 18px #e1583238}.button.primary:hover:not(:disabled){background:var(--accent-dark)}.button.primary:disabled{box-shadow:none;background:#d2c8bc}.button.execute{text-align:left;justify-content:space-between;align-items:center;display:flex}.button.secondary{border:1px solid var(--line);color:var(--ink);background:0 0}.button.danger{background:var(--accent);color:#fff}.spawn-actions{align-items:center;gap:12px;margin-top:10px;display:flex}.inline-action{color:var(--accent-dark);background:0 0;border:0;border-bottom:1px solid;padding:1px 0;font-size:12px}.utility-actions{border-top:1px solid var(--line);justify-content:space-between;gap:8px;margin-top:auto;padding-top:24px;display:flex}.utility-actions button{color:var(--muted);text-underline-offset:3px;background:0 0;border:0;padding:0;font-size:11px;text-decoration:underline}.utility-actions button:disabled{opacity:.35}footer{color:var(--muted);justify-content:space-between;gap:20px;padding:28px 0 34px;font-size:11px;display:flex}footer p{margin:0}.dialog-backdrop{z-index:100;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#251f1c8f;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.dialog{background:var(--paper);border-radius:20px;width:min(440px,100%);padding:30px;position:relative;box-shadow:0 30px 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var(--line)}.control-panel{min-height:540px}}@media(max-width:560px){.app-shell{width:min(100% - 24px,1180px)}.site-header{height:76px}.brand small{display:none}.text-button{font-size:11px}.hero{padding:34px 2px 30px}.hero h1{font-size:44px}.steps{grid-template-columns:1fr}.steps li,.steps li+li{border-left:0;border-bottom:1px solid var(--line);grid-template-columns:32px 1fr;padding:10px 0;display:grid}.steps p{margin:0}.workspace{border-radius:20px}.board-section,.control-panel{padding:22px 16px}.board{border-radius:14px;gap:7px;padding:8px}.tile-input,.spawn-cell{border-radius:8px;font-size:clamp(18px,7vw,30px)}.cell-error{font-size:7px}.recommendation{min-height:140px}.utility-actions{flex-wrap:wrap}footer{align-items:flex-start}}.resync-dialog{width:min(520px,100%)}.resync-grid{background:#b7a995;border-radius:14px;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:20px;padding:10px;display:grid}.resync-grid input{aspect-ratio:1;text-align:center;background:#eee6d9;border:0;border-radius:8px;width:100%;min-width:0;font-size:clamp(16px,5vw,25px);font-weight:800}.resync-grid input:focus{outline:3px solid var(--accent)}