:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#18221f;background:#f4f0e9;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,select{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled,select:disabled{cursor:wait;opacity:.68}.app-shell{position:relative;--theme-bg: #f4f0e9;--theme-text: #18221f;--theme-muted: #46675f;--theme-surface: #fffdf8;--theme-surface-soft: #fffdf8;--theme-border: #b9c7bd;--theme-accent: #18221f;--theme-card-mix: 90%;min-height:100vh;display:grid;place-items:center;padding:24px;overflow-x:hidden;overflow-y:auto;transition:color .22s ease}.background-fade{position:absolute;inset:0;z-index:0;pointer-events:none;animation:fade-background .42s ease forwards}.game{position:relative;z-index:1}@keyframes fade-background{0%{opacity:1}to{opacity:0}}.font-system{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.font-serif{font-family:Georgia,Times New Roman,serif}.font-mono{font-family:Cascadia Code,SFMono-Regular,Consolas,monospace}.font-rounded{font-family:Trebuchet MS,Arial Rounded MT Bold,ui-sans-serif,system-ui,sans-serif}.font-custom{font-family:var(--custom-font-family, "Smesh Custom"),Inter,ui-sans-serif,system-ui,sans-serif}.bg-linen{background:linear-gradient(120deg,rgba(52,135,121,.18),transparent 36%),linear-gradient(300deg,rgba(214,80,94,.14),transparent 34%),#f4f0e9}.bg-mint{background:linear-gradient(120deg,rgba(89,174,110,.22),transparent 36%),linear-gradient(300deg,rgba(55,147,180,.16),transparent 34%),#f7fff9}.bg-ink{color:#f8fff9;background:linear-gradient(120deg,rgba(52,135,121,.18),transparent 36%),linear-gradient(300deg,rgba(246,183,60,.13),transparent 34%),#17211f}.bg-custom{background:linear-gradient(120deg,rgba(52,135,121,.14),transparent 34%),linear-gradient(300deg,rgba(214,80,94,.1),transparent 32%),var(--custom-bg-image),var(--custom-bg-color);background-position:center;background-size:auto,auto,cover,auto}.game{width:min(1120px,100%)}.loading-screen{position:relative;z-index:1;display:grid;width:min(560px,100%);min-height:min(620px,calc(100dvh - 48px));place-items:center}.loading-card{display:grid;justify-items:center;gap:18px;width:min(420px,100%);border:1px solid color-mix(in srgb,var(--theme-border),transparent 16%);border-radius:8px;background:color-mix(in srgb,var(--theme-surface) var(--theme-card-mix),transparent);padding:clamp(24px,6vw,38px);text-align:center;box-shadow:0 18px 46px #18221f21;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.loading-card h1{font-size:clamp(1.8rem,6vw,2.6rem)}.loading-board{display:grid;grid-template-columns:repeat(3,34px);gap:5px;margin-top:4px}.loading-board span{aspect-ratio:1;border:1px solid var(--theme-border);border-radius:6px;background:var(--theme-surface-soft);opacity:.72;animation:loading-tile 1.1s ease-in-out infinite}.loading-board span.filled{background:var(--theme-accent)}.loading-board span:nth-child(2n){animation-delay:90ms}.loading-board span:nth-child(3n){animation-delay:.18s}@keyframes loading-tile{50%{transform:translateY(-3px);opacity:1}}.topbar{display:grid;grid-template-columns:minmax(300px,680px) minmax(250px,320px);align-items:stretch;gap:22px;margin-bottom:18px}.header-card{display:grid;align-content:center;min-height:100%;border:1px solid color-mix(in srgb,var(--theme-border),transparent 16%);border-radius:8px;background:color-mix(in srgb,var(--theme-surface) var(--theme-card-mix),transparent);padding:clamp(18px,2.2vw,26px);box-shadow:0 18px 46px #18221f21;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.eyebrow{margin:0 0 4px;color:var(--theme-muted);font-size:.82rem;font-weight:800;letter-spacing:0;text-transform:uppercase}h1{max-width:720px;margin:0;color:var(--theme-text);font-size:clamp(2rem,3vw,3rem);line-height:.98;letter-spacing:0;overflow-wrap:anywhere}.tool-row{display:flex;gap:10px}.actions{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center;width:100%}.spinner{width:26px;aspect-ratio:1;border:3px solid rgba(24,34,31,.18);border-top-color:#348779;border-radius:50%;animation:spin .7s linear infinite}.actions>.spinner{grid-column:1 / -1;justify-self:end}@keyframes spin{to{transform:rotate(360deg)}}select,.actions>button,.tool-row button,.choice-grid button{min-height:44px;border:1px solid var(--theme-border);border-radius:8px;background:var(--theme-surface-soft);color:var(--theme-text);padding:0 14px;font-weight:800;box-shadow:0 1px #18221f14}.actions>button,.tool-row button,.choice-grid button.active{background:var(--theme-accent);color:var(--theme-surface-soft)}.tool-row button.active{background:#348779;color:#fffdf8;box-shadow:inset 0 0 0 2px #fffdf847}.mode-tabs{display:grid;grid-column:1 / -1;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px;min-height:44px;width:100%;border-radius:8px;background:color-mix(in srgb,var(--theme-surface) 72%,transparent);padding:3px;box-shadow:inset 0 0 0 1px #18221f24}.actions select{width:100%;min-width:0}.mode-tab{min-height:38px;border:0;border-radius:6px;background:transparent;color:var(--theme-muted);padding:0 16px;font-weight:900;box-shadow:none;transition:background .14s ease,color .14s ease,transform .14s ease,box-shadow .14s ease}.mode-tab:hover{background:#3487791a;color:var(--theme-text)}.mode-tab.active{background:var(--theme-accent);color:var(--theme-surface-soft);box-shadow:0 1px 3px #18221f2e;transform:none}.mode-tab:focus-visible{outline:3px solid rgba(52,135,121,.34);outline-offset:2px}.layout{display:grid;grid-template-columns:minmax(300px,680px) minmax(250px,320px);align-items:start;gap:22px}.board-wrap{width:100%}.board{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));grid-template-rows:repeat(9,minmax(0,1fr));aspect-ratio:1;width:100%;border:4px solid #18221f;background:#18221f;gap:1px;box-shadow:0 18px 46px #18221f2b;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.board>button{position:relative;display:grid;place-items:center;min-width:0;min-height:0;border:0;background:#fffdf8;color:#18221f;padding:12%;transition:background .14s ease,box-shadow .14s ease,transform .14s ease}.board>button:nth-child(3n):not(:nth-child(9n)){border-right:3px solid #18221f}.board>button:nth-child(n+19):nth-child(-n+27),.board>button:nth-child(n+46):nth-child(-n+54){border-bottom:3px solid #18221f}.board>button:hover,.board>button.selected{z-index:2;background:#e6f2ea;box-shadow:inset 0 0 0 4px #348779}.board>button.drag-target,.board>button.drop-target:focus-visible{z-index:2;background:#e6f2ea;box-shadow:inset 0 0 0 4px #348779}.board>button.related{background:#edf5f2}.board>button.fixed{background:linear-gradient(135deg,rgba(24,34,31,.08),transparent 42%),#e8e1d4;box-shadow:inset 0 0 0 2px #18221f14}.board>button.user-filled{background:#fffdf8;box-shadow:inset 0 0 0 2px #34877929}.board>button.matching{z-index:2;background:#fff3cf;box-shadow:inset 0 0 0 4px #d7a42f}.board>button.fixed.matching{background:linear-gradient(135deg,rgba(215,164,47,.2),transparent 46%),#f2e6c7}.board>button.movable{cursor:grab}.board>button.movable:active{cursor:grabbing}.board>button.wrong{background:#ffe1df;box-shadow:inset 0 0 0 3px #cf4454}.board>button.fixed.wrong{background:linear-gradient(135deg,rgba(24,34,31,.08),transparent 42%),#e8e1d4;box-shadow:inset 0 0 0 3px #18221f}.board>button.empty:after{content:"";width:14%;aspect-ratio:1;border-radius:50%;background:#18221f21}.board>button.has-pencil:after{display:none}.pencil-marks{position:absolute;inset:8%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:repeat(3,minmax(0,1fr));align-items:center;justify-items:center;gap:2px;opacity:.82;pointer-events:none}.pencil-mark{aspect-ratio:1;width:82%;min-width:0}.symbol-icon,.text-symbol,.board img,.palette img,.custom-preview img,.pencil-mark img{width:100%;height:100%}.symbol-icon{fill:none;stroke:var(--icon-color, currentColor);stroke-linecap:round;stroke-linejoin:round;stroke-width:2}.user-filled .symbol-icon{stroke-width:2.1}.text-symbol{display:grid;place-items:center;color:var(--icon-color, currentColor);font-size:clamp(1.5rem,6vw,3.4rem);font-weight:900;line-height:1}.palette .text-symbol{font-size:2.6rem}.pencil-mark .text-symbol{font-size:1rem}img{display:block;object-fit:contain}.panel{display:grid;gap:16px}.mobile-palette,.mobile-tool-row{display:none}.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}.stats>div{min-height:82px;border:1px solid var(--theme-border);border-radius:8px;background:color-mix(in srgb,var(--theme-surface) var(--theme-card-mix),transparent);color:var(--theme-text);display:grid;align-content:center;padding:14px}.stats strong{font-size:1.7rem}.stats span{color:var(--theme-muted);font-weight:700}.palette{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.palette.compact{grid-template-columns:repeat(9,minmax(38px,1fr));gap:6px}.palette.compact button{min-width:0;padding:18%}.palette button{aspect-ratio:1;border:1px solid var(--theme-border);border-radius:8px;background:color-mix(in srgb,var(--theme-surface-soft) 92%,transparent);padding:20%;transition:border-color .14s ease,box-shadow .14s ease,transform .14s ease}.palette button[draggable=true]{cursor:grab}.palette button[draggable=true]:active{cursor:grabbing}.palette button:hover,.palette button.active{border-color:var(--theme-accent);box-shadow:0 0 0 4px #3487792e;transform:translateY(-1px)}.drag-preview{position:fixed;top:0;left:0;z-index:9999;display:grid;place-items:center;width:60px;height:60px;border:2px solid #18221f;border-radius:8px;background:#fffdf8;padding:10px;opacity:.92;pointer-events:none;transform:translate(-200vw,-200vh);box-shadow:0 8px 24px #18221f38}.drag-preview svg,.drag-preview img{width:100%;height:100%;object-fit:contain}.drag-preview-canvas{position:fixed;top:0;left:0;z-index:9999;pointer-events:none;transform:translate(-200vw,-200vh)}.message{min-height:56px;margin:0;border-left:4px solid #348779;background:color-mix(in srgb,var(--theme-surface) 76%,transparent);padding:14px 16px;color:var(--theme-text);font-weight:800}.message.win{border-color:#d6505e;color:var(--theme-text)}.code-panel{display:grid;border:1px solid var(--theme-border);border-radius:8px;background:color-mix(in srgb,var(--theme-surface) 72%,transparent);overflow:hidden}.code-panel-toggle{display:flex;align-items:center;justify-content:space-between;min-height:46px;border:0;background:transparent;color:var(--theme-text);padding:0 12px;font:inherit;font-weight:900}.code-panel-toggle span:last-child,.code-help{color:var(--theme-muted);font-size:.82rem;font-weight:800}.code-panel.open .code-panel-toggle{border-bottom:1px solid #d7ded7}.code-panel-body{display:grid;gap:10px;padding:12px;animation:reveal-control .16s ease both}.code-preview,.code-panel textarea{width:100%;min-width:0;border:1px solid var(--theme-border);border-radius:8px;background:var(--theme-surface-soft);color:var(--theme-text);font-family:Cascadia Code,SFMono-Regular,Consolas,monospace;font-size:.78rem;font-weight:800}.code-preview{min-height:38px;overflow:hidden;padding:0 10px;text-overflow:ellipsis}.code-panel textarea{min-height:58px;resize:vertical;padding:9px 10px}.code-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.code-actions button,.load-code-button{min-height:44px;border:1px solid var(--theme-border);border-radius:8px;background:var(--theme-accent);color:var(--theme-surface-soft);padding:0 14px;font:inherit;font-weight:800;box-shadow:0 1px #18221f14}.code-actions button:disabled,.load-code-button:disabled{opacity:.62}.load-code-button{width:100%}.settings-panel{display:grid;gap:16px}.settings-section{display:grid;align-content:start;gap:12px;min-height:auto;border:1px solid var(--theme-border);border-radius:8px;background:color-mix(in srgb,var(--theme-surface) var(--theme-card-mix),transparent);color:var(--theme-text);padding:16px}.settings-section h2{margin:0;font-size:1.05rem}.settings-note{margin:0;color:var(--theme-muted);font-weight:800}.preset-list{display:grid;gap:8px}.preset-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:8px;border:1px solid var(--theme-border);border-radius:8px;background:color-mix(in srgb,var(--theme-surface-soft) 82%,transparent);padding:8px}.preset-row>div{display:grid;gap:2px;min-width:0}.preset-row strong,.preset-row span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preset-row span{color:var(--theme-muted);font-size:.82rem;font-weight:800}.preset-row button{min-height:38px;border:1px solid var(--theme-border);border-radius:8px;background:var(--theme-surface-soft);color:var(--theme-text);padding:0 10px;font:inherit;font-weight:800}.preset-row button:first-of-type{background:var(--theme-accent);color:var(--theme-surface-soft)}.choice-grid{display:grid;gap:10px}.choice-grid button{display:flex;align-items:center;justify-content:flex-start;gap:10px}.upload-button,.file-action,.icon-button{min-height:44px;border:1px solid var(--theme-border);border-radius:8px;background:var(--theme-surface-soft);color:var(--theme-text);padding:0 14px;font:inherit;font-weight:800;box-shadow:0 1px #18221f14;cursor:pointer}.upload-button{display:grid;place-items:center;width:100%;border-style:dashed;color:var(--theme-muted)}.upload-button input{position:absolute;inline-size:1px;block-size:1px;opacity:0;pointer-events:none}.settings-file-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.settings-file-actions .upload-button{min-width:0}.settings-drop.drag-target{border-color:#348779;background:#e6f2ea;color:#18221f;box-shadow:inset 0 0 0 3px #34877938}.swatch{width:24px;aspect-ratio:1;border:1px solid rgba(24,34,31,.2);border-radius:50%;background:var(--swatch)}.custom-background-controls{display:grid;gap:10px;transform-origin:top}.custom-background-controls>*{animation:reveal-control .18s ease both}.custom-background-controls>*:nth-child(2){animation-delay:40ms}.custom-background-controls>*:nth-child(3){animation-delay:70ms}@keyframes reveal-control{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.color-picker{display:grid;gap:10px}.color-wheel{position:relative;width:min(220px,100%);aspect-ratio:1;justify-self:center;border:1px solid #b9c7bd;border-radius:50%;background:radial-gradient(circle,#fff 0 8%,#ffffffd1 18%,#fff0 64%),conic-gradient(#f43f5e,#f59e0b,#facc15,#22c55e,#06b6d4,#3b82f6,#8b5cf6,#ec4899,#f43f5e);box-shadow:inset 0 0 0 8px #fffdf86b,0 8px 22px #18221f1f;cursor:crosshair}.color-wheel:after{content:"";position:absolute;inset:18%;border-radius:50%;background:#fffdf82e;pointer-events:none}.color-wheel-handle{position:absolute;z-index:1;width:18px;aspect-ratio:1;border:3px solid #fffdf8;border-radius:50%;background:var(--custom-bg-color);box-shadow:0 0 0 2px #18221f,0 4px 10px #18221f3d;transform:translate(-50%,-50%);pointer-events:none}.lightness-control{gap:8px}.lightness-control input[type=range]{width:100%;min-height:28px;appearance:none;border:1px solid #b9c7bd;border-radius:999px;padding:0;cursor:pointer}.lightness-control input[type=range]::-webkit-slider-thumb{appearance:none;width:22px;aspect-ratio:1;border:3px solid #fffdf8;border-radius:50%;background:var(--custom-bg-color);box-shadow:0 0 0 2px #18221f,0 3px 8px #18221f38}.lightness-control input[type=range]::-moz-range-thumb{width:18px;height:18px;border:3px solid #fffdf8;border-radius:50%;background:var(--custom-bg-color);box-shadow:0 0 0 2px #18221f,0 3px 8px #18221f38}.color-swatches{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}.color-swatches button{position:relative;aspect-ratio:1;min-height:0;border:1px solid #b9c7bd;border-radius:8px;background:linear-gradient(135deg,rgba(255,255,255,.34),transparent 46%),var(--color);box-shadow:0 1px #18221f14}.color-swatches button:hover,.color-swatches button.active{border-color:#18221f;box-shadow:0 0 0 4px #34877929}.color-swatches button.active:after{content:"";position:absolute;inset:9px;border:2px solid #18221f;border-radius:50%}label{display:grid;gap:6px;color:var(--theme-muted);font-weight:800}input{min-height:44px;border:1px solid var(--theme-border);border-radius:8px;background:var(--theme-surface-soft);color:var(--theme-text);padding:0 12px;font:inherit;font-weight:700}input::placeholder,textarea::placeholder{color:color-mix(in srgb,var(--theme-muted) 72%,transparent)}.modal-backdrop{position:fixed;inset:0;z-index:10;display:grid;place-items:center;padding:20px;background:#18221f61}.modal{width:min(680px,100%);max-height:min(760px,calc(100vh - 40px));overflow:auto;border:1px solid #b9c7bd;border-radius:8px;background:#fffdf8;color:#18221f;box-shadow:0 24px 80px #18221f42}.modal-header{position:sticky;top:0;z-index:1;display:flex;align-items:start;justify-content:space-between;gap:16px;border-bottom:1px solid #d7ded7;background:#fffdf8f5;padding:18px}.modal-header h2{margin:0;font-size:1.4rem}.progress-backdrop{background:#18221f3d}.progress-modal{display:grid;gap:12px;width:min(360px,100%);padding:18px;overflow:hidden}.progress-copy{display:flex;align-items:center;justify-content:space-between;gap:14px}.progress-copy strong,.progress-copy span{font-weight:900}.progress-copy span{color:#5b6965}.progress-track{height:10px;overflow:hidden;border-radius:999px;background:#e8e1d4}.progress-track span{display:block;height:100%;border-radius:inherit;background:#348779;transition:width .18s ease}.icon-button{display:grid;place-items:center;width:44px;padding:0;background:#18221f;color:#fffdf8}.custom-upload-list{display:grid;gap:10px;padding:18px}.custom-upload-row{display:grid;grid-template-columns:64px 1fr auto;align-items:center;gap:12px;border:1px solid #c8d1c8;border-radius:8px;background:#f4f0e973;padding:10px;transition:background .14s ease,border-color .14s ease,box-shadow .14s ease}.custom-upload-row.drag-target{border-color:#348779;background:#e6f2ea;box-shadow:0 0 0 4px #34877929}.custom-preview{display:grid;place-items:center;aspect-ratio:1;border:1px solid #d7ded7;border-radius:8px;background:#fffdf8;padding:14%}.custom-upload-copy{display:grid;gap:2px;min-width:0}.custom-upload-copy span{overflow:hidden;color:#5b6965;font-weight:700;text-overflow:ellipsis;white-space:nowrap}.custom-upload-copy small{color:#6d7a76;font-weight:800}.file-action{display:grid;place-items:center;color:#fffdf8;background:#18221f}.file-action input{position:absolute;inline-size:1px;block-size:1px;opacity:0;pointer-events:none}.result-modal{width:min(480px,100%)}.result-body{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:18px}.result-stat{min-height:112px;display:grid;align-content:center;gap:4px;border:1px solid #c8d1c8;border-radius:8px;background:#f4f0e985;padding:16px}.result-stat strong{font-size:2rem;line-height:1}.result-stat span{color:#5b6965;font-weight:800}.result-actions{display:flex;flex-wrap:wrap;justify-content:end;gap:10px;border-top:1px solid #d7ded7;padding:18px}.result-actions button{min-height:44px;border:1px solid #b9c7bd;border-radius:8px;background:#fffdf8;color:#18221f;padding:0 14px;font:inherit;font-weight:800}.result-actions button:last-child{background:#18221f;color:#fffdf8}@media(max-width:860px){.app-shell{padding:18px;place-items:start center}.topbar,.layout,.settings-panel{grid-template-columns:1fr}.topbar{display:grid;align-items:start;gap:14px}.actions{width:100%}.panel{grid-template-columns:1fr}}@media(max-width:520px){.app-shell{padding:12px}h1{font-size:2rem}.header-card{padding:16px}.mobile-palette{position:sticky;top:8px;z-index:6;display:grid;gap:8px;margin:0 0 14px;border:1px solid var(--theme-border);border-radius:8px;background:color-mix(in srgb,var(--theme-surface) 88%,transparent);padding:8px;box-shadow:0 12px 32px #18221f24;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.mobile-tool-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.mobile-tool-row button{min-width:0;min-height:38px;border:1px solid var(--theme-border);border-radius:8px;background:var(--theme-surface-soft);color:var(--theme-text);padding:0 8px;font-weight:800;box-shadow:0 1px #18221f14}.mobile-tool-row button.active{background:#348779;color:#fffdf8;box-shadow:inset 0 0 0 2px #fffdf847}.panel>.palette{display:none}.panel>.tool-row{display:none}.actions{grid-template-columns:1fr auto;gap:8px}.mode-tab{padding:0 10px}.stats,.result-body,.settings-file-actions,.preset-row{grid-template-columns:1fr}.preset-row button{width:100%}.palette{gap:8px}.palette.compact{grid-template-columns:repeat(9,minmax(30px,1fr));gap:4px}.palette button{padding:18%}.palette.compact button{padding:16%}.palette.compact .text-symbol{font-size:1.2rem}.tool-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.tool-row button{min-width:0;padding:0 8px}.modal-backdrop{align-items:start;padding:12px;overflow-y:auto}.modal{max-height:calc(100dvh - 24px)}.modal-header{padding:14px}.custom-upload-list{padding:12px}.custom-upload-row{grid-template-columns:56px minmax(0,1fr)}.custom-upload-row .file-action{grid-column:1 / -1}.result-actions{display:grid;grid-template-columns:1fr}.result-actions button{width:100%}.board{border-width:3px}.board>button:nth-child(3n):not(:nth-child(9n)){border-right-width:2px}.board>button:nth-child(n+19):nth-child(-n+27),.board>button:nth-child(n+46):nth-child(-n+54){border-bottom-width:2px}}