:root{font-family:Inter,SF Pro Display,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:#dce8e9;background:#10191e;font-synthesis:none;font-weight:400;--mint:#8be1cb;--cyan:#8dcfe6;--muted:#74898f;--line:#2a3b41;--amber:#e7bc7b;--red:#ee8b74;color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;border:0;background:none;touch-action:manipulation}button:disabled{opacity:.3;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:3px}button{transition:background .15s,color .15s,box-shadow .15s}button:active:not(:disabled){filter:brightness(.87)}a{color:inherit;text-decoration:none}.icon{width:22px;height:22px;flex-shrink:0;display:inline-block;vertical-align:middle;pointer-events:none}button 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#defff0;outline-offset:-1px}.cell:focus-visible:before{z-index:0;border-color:#d0ffe7}.cell:after{z-index:2;pointer-events:none}.cell.just-revealed:after{content:"";position:absolute;z-index:2;inset:1.5px;border-radius:5px;border:1px solid #baffdf;background:linear-gradient(140deg,#bcffe029,transparent 65%);box-shadow:inset 0 0 7px #abffdc20;animation:crystal-reveal .19s var(--wave-delay, 0ms) ease-out both}.cell.finish-wave:after{content:"";position:absolute;z-index:3;inset:1px;border-radius:5px;border:1px solid #c9ffe7;background:#baffdc16;box-shadow:0 0 5px #bcffd522;animation:crystal-complete .32s var(--finish-delay, 0ms) ease-out both}.cell.chord-check:before{animation:crystal-check .2s ease-out}.unflag-ghost{color:#ffd18d;z-index:7}.unflag-ghost .icon{width:var(--glyph-icon-size, calc(var(--cell-size) * .52));height:var(--glyph-icon-size, calc(var(--cell-size) * .52))}.game-console[data-status=won] .field-shell,.game-console.is-won 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crystal-reveal{0%{opacity:1;transform:scale(.96)}30%{opacity:.9;transform:scale(1)}to{opacity:0;transform:scale(1)}}@keyframes crystal-complete{0%{opacity:0;transform:scale(.97)}28%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1)}}@keyframes crystal-check{0%{border-color:#e4d7a8}to{border-color:#4d647a}}@keyframes flag-edge-land{0%{border-color:#ffe7af;transform:translateY(1px) scale(.96)}45%{border-color:#ffdb9c;transform:none}to{border-color:#967e57}}@media(hover:hover)and 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1px)}:root[data-theme] #viewport[data-view=overview]:after{background:var(--theme-surface);border-color:var(--theme-border);color:var(--theme-muted);border-radius:var(--theme-button-radius)}:root[data-theme] .cell:before{border-color:var(--skin-border);background:linear-gradient(150deg,var(--theme-tile-light),var(--theme-tile) 80%);border-radius:var(--theme-skin-radius);box-shadow:inset 0 1px #ffffff30,inset 1px 0 #ffffff0d,0 3px color-mix(in srgb,var(--theme-bg) 85%,#000),0 4px 3px #0003}:root[data-theme] .cell.pressed:before{border-color:var(--theme-accent);background:color-mix(in srgb,var(--theme-tile-light) 80%,var(--theme-accent));transform:var(--theme-press);box-shadow:inset 0 2px 4px #0003,0 1px 0 var(--theme-bg)}:root[data-theme] .cell.revealed:before{background:var(--theme-reveal);border-color:color-mix(in srgb,var(--skin-border) 42%,var(--theme-reveal));box-shadow:inset 0 1px 3px #0002;transform:none;border-radius:var(--theme-skin-radius)}:root[data-theme] .cell.revealed.pressed:before{background:color-mix(in srgb,var(--theme-reveal) 82%,var(--theme-accent));border-color:var(--theme-accent)}:root[data-theme] .cell.revealed.chord-ready.pressed:before{background:color-mix(in srgb,var(--theme-reveal) 85%,var(--theme-accent));border-color:var(--theme-accent)}:root[data-theme] .cell.neighbor:not(.revealed):before{background:color-mix(in srgb,var(--theme-tile) 82%,var(--theme-flag));border-color:var(--theme-flag)}:root[data-theme] .cell.neighbor-ready:not(.revealed):before{background:color-mix(in srgb,var(--theme-tile) 82%,var(--theme-accent));border-color:var(--theme-accent)}:root[data-theme] .cell.flagged{color:var(--theme-flag)}:root[data-theme] .cell.flagged:before{background:linear-gradient(145deg,color-mix(in srgb,var(--theme-tile-light) 85%,var(--theme-flag)),var(--theme-tile));border-color:color-mix(in srgb,var(--theme-flag) 75%,var(--skin-border));box-shadow:inset 0 1px #ffffff25,0 3px 0 var(--theme-bg)}:root[data-theme] .cell.mine{color:var(--theme-danger)}:root[data-theme] .cell.mine:before{background:color-mix(in srgb,var(--theme-reveal) 80%,var(--theme-danger));border-color:color-mix(in srgb,var(--theme-danger) 65%,var(--skin-border));box-shadow:inset 0 1px #ffffff15}:root[data-theme] .cell.mine.detonated{color:var(--board-text,var(--theme-text))}:root[data-theme] .cell.wrong,:root[data-theme] .unflag-ghost{color:var(--theme-flag)}:root[data-theme] .cell .wrong-cross{color:var(--theme-danger)}:root[data-theme] .cell>.cell-glyph{font-family:var(--theme-number-font);font-weight:780;text-shadow:var(--number-shadow,0 1px 1px #0004);opacity:1;z-index:10}:root[data-theme] .cell.pressed>.cell-glyph{transform:translateY(calc(1px * var(--click-strength))) scale(calc(1 - .03 * var(--click-strength)))}:root[data-theme] .n1{color:var(--number-1)}:root[data-theme] .n2{color:var(--number-2)}:root[data-theme] .n3{color:var(--number-3)}:root[data-theme] .n4{color:var(--number-4)}:root[data-theme] .n5{color:var(--number-5)}:root[data-theme] .n6{color:var(--number-6)}:root[data-theme] .n7{color:var(--number-7)}:root[data-theme] .n8{color:var(--number-8)}:root[data-theme] .cell:focus-visible{outline-color:var(--theme-accent)}:root[data-theme] .cell:focus-visible:before{border-color:var(--theme-accent)}:root[data-theme] .cell.just-revealed:after,:root[data-theme] .cell.finish-wave:after{border-color:color-mix(in srgb,var(--theme-accent) 80%,transparent);background:linear-gradient(140deg,color-mix(in srgb,var(--theme-accent) 16%,transparent),transparent 70%);box-shadow:inset 0 0 calc(7px * var(--glow-strength)) color-mix(in srgb,var(--theme-accent) 20%,transparent);border-radius:var(--theme-skin-radius);z-index:2;pointer-events:none}:root[data-theme] .cell.just-revealed:after{animation-name:theme-reveal;animation-duration:calc(.19s / var(--ui-speed));animation-delay:var(--wave-delay,0ms)}:root[data-theme] .cell.finish-wave:after{animation-name:theme-complete;animation-duration:calc(.32s / var(--ui-speed));animation-delay:var(--finish-delay,0ms)}:root[data-theme] .game-console[data-status=won] .field-shell{border-color:var(--theme-accent);box-shadow:inset 0 3px 9px #0004,0 0 calc(14px * var(--glow-strength)) color-mix(in srgb,var(--theme-accent) 20%,transparent)}:root[data-theme] .game-console[data-status=lost] .field-shell{border-color:var(--theme-danger);box-shadow:inset 0 3px 9px #0004}:root[data-theme] .action-dock.game-controls{background:color-mix(in srgb,var(--theme-tile) 40%,var(--theme-surface));border-color:var(--theme-border)}:root[data-theme] .micro-guide.quick-tip{background:color-mix(in srgb,var(--theme-tile) 15%,var(--theme-surface))}:root[data-theme] .micro-guide>button,:root[data-theme] .session-strip b,:root[data-theme] .session-strip strong{color:var(--theme-text)}:root[data-theme] .session-strip #records-btn,:root[data-theme] .session-strip .text-button{color:var(--theme-accent)}:root[data-theme] .map-shell,:root[data-theme] #mini-map-button{background:var(--theme-surface);border-color:var(--theme-border)}:root[data-theme] #mini-map-button>span{color:var(--theme-text)}:root[data-theme] #pause-cover{background:var(--theme-surface);border-color:var(--theme-border);border-radius:var(--theme-button-radius);color:var(--theme-text)}:root[data-theme] .pause-symbol{color:var(--theme-accent);background:color-mix(in srgb,var(--theme-accent) 12%,var(--theme-surface));border-color:var(--theme-border);border-radius:var(--theme-button-radius)}:root[data-theme] #pause-cover h2,:root[data-theme] #modal,:root[data-theme] #modal-title{color:var(--theme-text)}:root[data-theme] #pause-cover p{color:var(--theme-muted)}:root[data-theme] #modal{background:var(--theme-surface);border-color:var(--theme-border);border-radius:var(--theme-radius);font-family:var(--theme-font);box-shadow:0 28px 100px #0006,inset 0 1px #ffffff19}:root[data-theme] #modal::backdrop{background:color-mix(in srgb,var(--theme-bg) 75%,transparent);backdrop-filter:blur(6px)}:root[data-theme] #modal .eyebrow{color:var(--theme-accent)}:root[data-theme] #modal .icon-button{color:var(--theme-text);background:transparent}:root[data-theme] .primary-button{background:color-mix(in srgb,var(--theme-accent) 25%,var(--theme-surface));color:var(--theme-text);border-color:var(--theme-accent);box-shadow:0 2px color-mix(in srgb,var(--theme-accent) 35%,var(--theme-bg)),inset 0 1px #ffffff24}:root[data-theme] .primary-button:hover{background:color-mix(in srgb,var(--theme-accent) 38%,var(--theme-surface))}:root[data-theme] .secondary-button,:root[data-theme] .effect-options button,:root[data-theme] .sound-preview button{background:color-mix(in srgb,var(--theme-tile) 30%,var(--theme-surface));color:var(--theme-text);border-color:var(--theme-border)}:root[data-theme] .secondary-button:hover,:root[data-theme] .sound-preview button:hover{border-color:var(--theme-accent);background:color-mix(in srgb,var(--theme-accent) 15%,var(--theme-surface))}:root[data-theme] .effect-options button[aria-pressed=true]{background:color-mix(in srgb,var(--theme-accent) 22%,var(--theme-surface));color:var(--theme-text);border-color:var(--theme-accent)}:root[data-theme] .modal-description,:root[data-theme] .note-box,:root[data-theme] .keyboard-help,:root[data-theme] .setting-row small,:root[data-theme] .haptic-row small,:root[data-theme] .settings-footer,:root[data-theme] .help-steps small,:root[data-theme] .result-description,:root[data-theme] .result-stats span,:root[data-theme] .seed-line,:root[data-theme] .custom-fields label,:root[data-theme] .custom-fields small{color:var(--theme-muted)}:root[data-theme] .note-box{background:color-mix(in srgb,var(--theme-bg) 25%,var(--theme-surface));border-color:var(--theme-border);border-radius:var(--theme-button-radius)}:root[data-theme] .help-steps>div>span{background:var(--theme-reveal);border-color:var(--theme-border);border-radius:var(--theme-button-radius)}:root[data-theme] .help-steps .demo-flag{color:var(--theme-flag)}:root[data-theme] .help-steps .demo-chord,:root[data-theme] .setting-row output,:root[data-theme] .seed-line code{color:var(--theme-accent)}:root[data-theme] .range,:root[data-theme] input[type=checkbox]{accent-color:var(--theme-accent)}:root[data-theme] input:not([type=range]):not([type=checkbox]),:root[data-theme] select,:root[data-theme] textarea{color:var(--theme-text);background:color-mix(in srgb,var(--theme-bg) 35%,var(--theme-surface));border-color:var(--theme-border);border-radius:var(--theme-button-radius)}:root[data-theme] .settings-footer,:root[data-theme] .sound-preview{border-color:var(--theme-border)}:root[data-theme] .haptic-row input:checked+.toggle{background:color-mix(in srgb,var(--theme-accent) 65%,var(--theme-surface))}:root[data-theme] .haptic-row input:checked+.toggle:before{background:var(--theme-text)}:root[data-theme] .result-emblem{color:var(--theme-accent);background:color-mix(in srgb,var(--theme-accent) 14%,var(--theme-surface));border-color:var(--theme-accent);border-radius:var(--theme-button-radius)}:root[data-theme] .result-emblem .icon{color:var(--theme-accent)}:root[data-theme] .result-emblem.loss{color:var(--theme-danger);background:color-mix(in srgb,var(--theme-danger) 15%,var(--theme-surface));border-color:var(--theme-danger)}:root[data-theme] .result-emblem.loss .icon{color:var(--theme-danger)}:root[data-theme] .result-stats strong,:root[data-theme] .record-row strong{color:var(--theme-text);font-family:var(--theme-number-font)}:root[data-theme] #custom-error{color:var(--theme-danger)}:root[data-theme] #toast{background:var(--theme-surface);color:var(--theme-text);border-color:var(--theme-accent);border-radius:var(--theme-button-radius)}@media(hover:hover){:root[data-theme] .cell:not(.revealed):not(.flagged):not(.mine):hover:before{border-color:var(--theme-accent);background:linear-gradient(145deg,color-mix(in srgb,var(--theme-tile-light) 90%,var(--theme-accent)),var(--theme-tile))}:root[data-theme] .cell.revealed:hover:before{border-color:var(--theme-accent)}:root[data-theme] .cell.flagged:hover:before{background:color-mix(in srgb,var(--theme-tile-light) 75%,var(--theme-flag));border-color:var(--theme-flag)}:root[data-theme] .cell.mine:hover:before{background:color-mix(in srgb,var(--theme-reveal) 70%,var(--theme-danger))}}:root[data-theme=neon] .ambient:before{background-position:center top;animation:neon-city 8s steps(8,end) infinite alternate}:root[data-theme=neon] .game-console{border-width:2px;box-shadow:5px 5px #5ff4ed29,-4px -3px #ff75d624}:root[data-theme=neon] .console-top,:root[data-theme=neon] #modal{background-image:repeating-linear-gradient(0deg,transparent 0 3px,#ff75d60a 3px 4px)}:root[data-theme=neon] .topbar .brand h1{letter-spacing:3px;text-shadow:2px 0 #ff75d680,-2px 0 #5ff4ed80}:root[data-theme=neon] .primary-button,:root[data-theme=neon] .new-button{box-shadow:3px 3px #5ff4ed44!important}:root[data-theme=arcade] .game-console{border-width:3px;box-shadow:6px 6px #060a16,inset 0 0 0 2px #ffe66d22}:root[data-theme=arcade] .ambient:before{image-rendering:pixelated;animation:arcade-stage 12s steps(6,end) infinite alternate}:root[data-theme=arcade] .topbar .brand h1,:root[data-theme=arcade] #modal-title{font-weight:900;letter-spacing:0;text-shadow:2px 2px #060a16}:root[data-theme=arcade] .console-top,:root[data-theme=arcade] .action-dock{border-top:2px solid var(--theme-border);border-bottom:2px solid var(--theme-border)}:root[data-theme=arcade] .primary-button,:root[data-theme=arcade] .new-button,:root[data-theme=arcade] .icon-button{border-width:2px;box-shadow:4px 4px #060a16!important}:root[data-theme=ocean] .ambient:before{background-size:max(100vw,100vh) auto;animation:abyssal-drift 24s ease-in-out infinite alternate}:root[data-theme=ocean] .game-console,:root[data-theme=ocean] #modal{border-top-width:3px;background-image:radial-gradient(ellipse at 50% 0%,#7ee3da0a,transparent 60%)}:root[data-theme=ocean] .console-top,:root[data-theme=ocean] .action-dock{background-image:repeating-linear-gradient(90deg,transparent 0 32px,#7ee3da08 32px 33px)}:root[data-theme=ocean] .topbar .brand h1,:root[data-theme=ocean] #modal-title{letter-spacing:3px}:root[data-theme=sakura] .ambient:before{background-position:center top;animation:sakura-breeze 28s ease-in-out infinite alternate}:root[data-theme=sakura] .game-console,:root[data-theme=sakura] #modal{border-width:1px;background-image:radial-gradient(ellipse at 100% 0%,#e9b9c51f,transparent 65%);box-shadow:0 16px 60px #79475d1c,0 3px #b887a030,inset 0 1px #fff}:root[data-theme=sakura] .console-top{border-bottom-style:dashed}:root[data-theme=sakura] .topbar .brand h1{font-weight:600;letter-spacing:3px}:root[data-theme=sakura] .action-dock,:root[data-theme=sakura] .micro-guide{background-image:radial-gradient(ellipse at 0% 100%,#e9b9c526,transparent 65%)}:root[data-theme=empire] .ambient:before{animation:sun-vault 30s ease-in-out infinite alternate}:root[data-theme=empire] .game-console,:root[data-theme=empire] #modal{border-width:3px;border-style:double;background-image:repeating-linear-gradient(90deg,transparent 0 22px,#f6d17b04 22px 23px);box-shadow:0 20px 60px #0004,inset 0 0 0 4px #f6d17b12}:root[data-theme=empire] .console-top,:root[data-theme=empire] .action-dock{border-top:3px double var(--theme-border);border-bottom:3px double var(--theme-border)}:root[data-theme=empire] .topbar .brand h1,:root[data-theme=empire] #modal-title{letter-spacing:4px}:root[data-theme=empire] .primary-button{border-width:3px;border-style:double}:root[data-theme=lava] .ambient:before{animation:volcanic-heat 15s ease-in-out infinite alternate}:root[data-theme=lava] .game-console,:root[data-theme=lava] #modal{background-image:linear-gradient(165deg,#ffffff04 25%,transparent 25%,transparent 75%,#ff8c6508 75%);border-width:2px;box-shadow:0 20px 65px #0005,inset 0 -3px #ffab7338}:root[data-theme=lava] .console-top,:root[data-theme=lava] .action-dock{background-image:linear-gradient(20deg,transparent 50%,#ffab7308 51%)}:root[data-theme=lava] .topbar .brand h1{font-weight:850;letter-spacing:1px}:root[data-theme=ice] .ambient:before{animation:polar-light 22s ease-in-out infinite alternate}:root[data-theme=ice] .game-console,:root[data-theme=ice] #modal{border-width:2px;border-color:#fff;background-image:linear-gradient(135deg,#ffffff75,transparent 40%,#b4dcec25);box-shadow:0 18px 55px #42799522,inset 0 1px #fff}:root[data-theme=ice] .console-top,:root[data-theme=ice] .action-dock{background-image:linear-gradient(155deg,#ffffff50,transparent 70%)}:root[data-theme=ice] .primary-button,:root[data-theme=ice] .icon-button{border-color:#7aaac1;box-shadow:inset 0 1px #fff,0 3px #7aaac14d!important}:root[data-theme=ink] .ambient:before{background-position:center top;animation:ink-landscape 36s ease-in-out infinite alternate}:root[data-theme=ink] .game-console,:root[data-theme=ink] #modal{border-color:#718078;background-image:repeating-linear-gradient(0deg,#77634a04 0 1px,transparent 1px 4px),repeating-linear-gradient(90deg,#77634a03 0 1px,transparent 1px 5px);box-shadow:0 8px 25px #293c3019,inset 0 0 0 4px #f9f4e5}:root[data-theme=ink] .console-top,:root[data-theme=ink] .action-dock{border-color:#718078;border-bottom-style:double;background-image:repeating-linear-gradient(0deg,#77634a04 0 1px,transparent 1px 4px)}:root[data-theme=ink] .topbar .brand h1{font-weight:600;letter-spacing:5px}:root[data-theme=ink] .primary-button{border-width:2px;border-color:#9e3c33;background:#a13d3217;box-shadow:1px 2px #9e3c3333!important}:root[data-theme=ink] .version-badge{background:#9e3c33;color:#fff4e4;border:0;writing-mode:vertical-rl;padding:4px 3px;line-height:1.1;margin-top:0}:root[data-theme=cosmos] .ambient:before{animation:cosmic-orbit 40s ease-in-out infinite alternate}:root[data-theme=cosmos] .game-console,:root[data-theme=cosmos] #modal{background-image:radial-gradient(ellipse at 100% 0%,#bb9dff12,transparent 55%),radial-gradient(ellipse at 0% 100%,#75d5eb0e,transparent 50%);box-shadow:0 20px 65px #07091f88,inset 0 1px #e3d7ff25}:root[data-theme=cosmos] .progress-track{height:4px;border-radius:8px}:root[data-theme=cosmos] .pulse-emblem{border-radius:50%;outline:1px solid #c5b2ff44;outline-offset:4px}:root[data-theme=candy] .ambient:before{animation:candy-cloud 24s ease-in-out infinite alternate}:root[data-theme=candy] .game-console,:root[data-theme=candy] #modal{border-width:3px;border-color:#fff;background-image:radial-gradient(ellipse at 100% 0%,#ffdbe955,transparent 55%);box-shadow:0 8px #bc84a233,0 18px 50px #98627d20,inset 0 2px #fff}:root[data-theme=candy] .console-top,:root[data-theme=candy] .action-dock{background-image:repeating-linear-gradient(45deg,#ffffff17 0 12px,transparent 12px 24px)}:root[data-theme=candy] .topbar .brand h1,:root[data-theme=candy] #modal-title{font-weight:850;letter-spacing:1px}:root[data-theme=candy] .primary-button,:root[data-theme=candy] .new-button,:root[data-theme=candy] .icon-button{border-width:2px;border-color:#fff;box-shadow:inset 0 2px #ffffffa0,0 4px #bc84a244!important}:root[data-theme=occult] .ambient:before{animation:ritual-orbit 50s linear infinite alternate}:root[data-theme=occult] .game-console,:root[data-theme=occult] #modal{border-width:2px;background-image:repeating-linear-gradient(60deg,transparent 0 29px,#d1a3ed04 29px 30px);box-shadow:0 20px 70px #09050f70,inset 0 0 0 4px #d1a3ed0d}:root[data-theme=occult] .console-top{border-bottom:3px double var(--theme-border)}:root[data-theme=occult] .action-dock{border-top:3px double var(--theme-border)}:root[data-theme=occult] .topbar .brand h1,:root[data-theme=occult] #modal-title{letter-spacing:4px;font-weight:550}:root[data-theme=occult] .primary-button{border-style:double;border-width:3px}:root[data-theme] .ambient:after{inset:-45px;opacity:calc(var(--background-strength) * .22);pointer-events:none;transform-origin:center;background-repeat:repeat}:root[data-theme=crystal] .ambient:after{background-image:linear-gradient(130deg,transparent 48.5%,#b9ffe638 49% 50%,transparent 50.5%);background-size:91px 129px;animation:ambient-crystal 21s ease-in-out infinite alternate}:root[data-theme=neon] .ambient:after{background-image:linear-gradient(90deg,transparent 48%,#5ff4ed4d 49% 50%,transparent 51%),linear-gradient(0deg,transparent 98%,#ff75d654 99%);background-size:160px 240px,80px 37px;animation:ambient-neon 10s linear infinite}:root[data-theme=arcade] .ambient:after{background-image:repeating-conic-gradient(#ffe66d66 0 25%,transparent 0 100%);background-size:103px 103px;opacity:calc(var(--background-strength) * .12);animation:ambient-pixel 16s steps(8,end) infinite}:root[data-theme=ocean] .ambient:after{background-image:radial-gradient(circle at 31px 37px,transparent 5px,#8de3d75c 5.5px 6.5px,transparent 7px),radial-gradient(circle at 19px 78px,transparent 2px,#a3f0e445 2.5px 3px,transparent 4px);background-size:157px 213px,113px 167px;animation:ambient-bubbles 28s linear infinite}:root[data-theme=sakura] .ambient:after{background-image:radial-gradient(ellipse 6px 3px at 19px 28px,#be648c8c 90%,transparent),radial-gradient(ellipse 4px 7px at 71px 57px,#d186a47c 85%,transparent);background-size:173px 223px,211px 193px;animation:ambient-petals 22s linear infinite}:root[data-theme=empire] .ambient:after{background-image:radial-gradient(circle at 23px 41px,#f6d17b80 1px,transparent 1.5px),radial-gradient(circle at 70px 90px,#f6d17b66 1.5px,transparent 2px);background-size:111px 131px,173px 157px;animation:ambient-sand 26s ease-in-out infinite alternate}:root[data-theme=lava] .ambient:after{background-image:radial-gradient(ellipse 1.5px 4px at 31px 47px,#ffad7480 90%,transparent),radial-gradient(ellipse 2px 5px at 71px 81px,#f2866399 90%,transparent);background-size:149px 203px,187px 233px;animation:ambient-embers 12s linear infinite}:root[data-theme=ice] .ambient:after{background-image:radial-gradient(circle at 21px 27px,#ffffffdd 1px,transparent 2px),radial-gradient(circle at 89px 67px,#ffffffdd 2px,transparent 2.6px);background-size:97px 137px,193px 179px;animation:ambient-snow 30s linear infinite}:root[data-theme=ink] .ambient:after{background-image:radial-gradient(ellipse at 8% 30%,#3c625b33,transparent 22%),radial-gradient(ellipse at 94% 75%,#3c625b22,transparent 20%);background-repeat:no-repeat;animation:ambient-mist 32s ease-in-out infinite alternate}:root[data-theme=cosmos] .ambient:after{background-image:radial-gradient(circle at 23px 31px,#e5d6ff99 1px,transparent 1.8px),radial-gradient(circle at 99px 67px,#a4e5ed99 1.5px,transparent 2px);background-size:127px 173px,181px 239px;animation:ambient-stars 38s ease-in-out infinite alternate}:root[data-theme=candy] .ambient:after{background-image:radial-gradient(circle at 31px 41px,transparent 9px,#b97ba455 10px 12px,transparent 13px),radial-gradient(circle at 51px 73px,#7fac9c55 4px,transparent 5px);background-size:197px 231px,137px 157px;animation:ambient-sweets 25s linear infinite}:root[data-theme=occult] .ambient:after{background-image:repeating-radial-gradient(circle at 80% 14%,transparent 0 46px,#c196de33 47px 48px,transparent 49px 91px);background-size:100% 100%;background-repeat:no-repeat;animation:ambient-runes 48s ease-in-out infinite alternate}@keyframes ambient-crystal{to{transform:translate(-14px,-22px);opacity:calc(var(--background-strength) * .32)}}@keyframes ambient-neon{to{transform:translateY(37px)}}@keyframes ambient-pixel{to{transform:translateY(103px)}}@keyframes ambient-bubbles{to{transform:translateY(-105px)}}@keyframes 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3px;--press-scale-x:.95;--press-scale-y:.93}:root[data-skin=ocean] .cell:not(.revealed):before{background-image:repeating-linear-gradient(90deg,transparent 0 6px,#9bddcf08 6px 7px),linear-gradient(160deg,var(--theme-tile-light),var(--theme-tile));border-bottom-width:3px;box-shadow:inset 0 2px 2px #b7f6e817,0 2px #031c28}:root[data-skin=ocean] .cell.just-revealed:after{animation-name:water-reveal;border-radius:40%;border-width:2px;background:transparent}:root[data-skin=sakura]{--theme-skin-radius:10px 4px 10px 4px;--press-scale-y:.96;--number-shadow:none}:root[data-skin=sakura] .cell:not(.revealed):before{border-color:#c393a8;background:radial-gradient(ellipse at 28% 10%,#ffffffaa,transparent 60%),linear-gradient(145deg,var(--theme-tile-light),var(--theme-tile));box-shadow:inset 0 1px #fff,0 3px #b889a056}:root[data-skin=sakura] .cell.revealed:before{box-shadow:none;border-style:dotted}:root[data-skin=sakura] .cell.just-revealed:after{animation-name:petal-reveal;border-radius:50% 10%;border-color:#ac4b7288;background:#dc97b018}:root[data-skin=empire]{--theme-skin-radius:1px;--press-scale-x:.95;--press-scale-y:.95}:root[data-skin=empire] .cell:not(.revealed):before{border-width:3px;border-style:double;background:repeating-linear-gradient(15deg,#ffffff05 0 2px,transparent 2px 7px),linear-gradient(145deg,var(--theme-tile-light),var(--theme-tile));box-shadow:inset 0 0 0 2px #1b17152d,0 3px #18120e}:root[data-skin=empire] .cell.just-revealed:after{animation-name:sand-reveal;border-width:3px;border-style:double}:root[data-skin=lava]{--theme-skin-radius:3px 9px 3px 7px;--press-scale-x:.93;--press-scale-y:.93;--press-rotation:-1deg}:root[data-skin=lava] .cell:not(.revealed):before{background:linear-gradient(132deg,transparent 47%,#ff977928 48% 50%,transparent 51%),linear-gradient(35deg,#ffffff0a 42%,transparent 43%),linear-gradient(155deg,var(--theme-tile-light),var(--theme-tile));box-shadow:inset 1px 1px #ffffff16,0 3px #140b10}:root[data-skin=lava] .cell.just-revealed:after{animation-name:lava-reveal;border-width:2px;border-radius:3px 9px 3px 7px}:root[data-skin=ice]{--theme-skin-radius:7px 2px 7px 2px;--press-offset-y:1px;--press-scale-x:.95;--press-scale-y:.95;--number-shadow:none}:root[data-skin=ice] .cell:not(.revealed):before{border-color:#92b9ce;background:linear-gradient(135deg,#ffffffa0 0 18%,transparent 20% 61%,#ffffff40 63% 65%,transparent 67%),linear-gradient(150deg,var(--theme-tile-light),var(--theme-tile));box-shadow:inset 1px 1px #fff,0 3px #81a9bd70}:root[data-skin=ice] .cell.revealed:before{border-color:#a6c5d5;box-shadow:inset 0 1px 2px #6f99af20}:root[data-skin=ice] .cell.just-revealed:after{animation-name:ice-reveal;border-width:1px;background:linear-gradient(45deg,transparent 48%,#84b9d566 49% 51%,transparent 52%)}:root[data-skin=ink]{--theme-skin-radius:1px;--press-offset-y:1px;--press-scale-x:.96;--press-scale-y:.96;--number-shadow:none}:root[data-skin=ink] .cell:not(.revealed):before{border-color:#929b8c;background:repeating-linear-gradient(0deg,#4b4a3c08 0 1px,transparent 1px 3px),repeating-linear-gradient(90deg,#4b4a3c04 0 1px,transparent 1px 5px),linear-gradient(145deg,var(--theme-tile-light),var(--theme-tile));box-shadow:inset 0 1px #ffffff80,1px 2px #68756540}:root[data-skin=ink] .cell.revealed:before{border-color:#a6ac9d;border-style:dotted;box-shadow:none}:root[data-skin=ink] .cell.just-revealed:after{animation-name:ink-reveal;border-color:#3c625b80;border-radius:45% 37% 50% 38%;background:#3864570a;box-shadow:none}:root[data-skin=cosmos]{--theme-skin-radius:12px;--press-offset-y:0px;--press-scale-x:.9;--press-scale-y:.9}:root[data-skin=cosmos] .cell:not(.revealed):before{background:radial-gradient(ellipse at 30% 20%,#bbaaff35,transparent 60%),linear-gradient(160deg,var(--theme-tile-light),var(--theme-tile));border-color:#8898bd;box-shadow:inset 0 1px #e5ddff55,0 3px #0a102c}:root[data-skin=cosmos] .cell.just-revealed:after{animation-name:orbit-reveal;border-radius:50%;background:transparent}:root[data-skin=candy]{--theme-skin-radius:12px;--press-offset-y:3px;--press-scale-x:1.02;--press-scale-y:.86;--number-shadow:none}:root[data-skin=candy] .cell:not(.revealed):before{border:2px solid #fff4fb;background:radial-gradient(ellipse at 30% 14%,#ffffffc0,transparent 55%),linear-gradient(145deg,var(--theme-tile-light),var(--theme-tile));box-shadow:inset 0 -3px #bc84a22e,0 3px #bc84a277}:root[data-skin=candy] .cell.revealed:before{border:1px solid #d9bdcf;box-shadow:none}:root[data-skin=candy] .cell.just-revealed:after{animation-name:jelly-reveal;border-radius:12px;background:#b64a7810}:root[data-skin=occult]{--theme-skin-radius:14px 14px 2px 2px;--press-offset-y:1px;--press-scale-x:.93;--press-scale-y:.93}:root[data-skin=occult] .cell:not(.revealed):before{border-width:2px;background:radial-gradient(ellipse at 50% 18%,#d1a3ed10,transparent 65%),linear-gradient(155deg,var(--theme-tile-light),var(--theme-tile));box-shadow:inset 0 0 0 2px #15101e55,0 3px #0e0916}:root[data-skin=occult] .cell.just-revealed:after{animation-name:sigil-reveal;border-style:double;border-width:3px;background:transparent}:root[data-theme] .cell.flagged:not(.revealed):before{border-color:color-mix(in srgb,var(--theme-flag) 72%,var(--skin-border));background:linear-gradient(145deg,color-mix(in srgb,var(--theme-tile) 93%,var(--theme-flag)),var(--theme-tile));box-shadow:inset 0 1px #ffffff25,0 3px 0 var(--theme-bg)}:root[data-theme] .cell.mine:not(.detonated):before{background:color-mix(in srgb,var(--theme-reveal) 83%,var(--theme-danger));border-color:color-mix(in srgb,var(--theme-danger) 65%,var(--skin-border));box-shadow:inset 0 1px #ffffff18}:root[data-theme] .cell.mine.detonated:before{background:color-mix(in srgb,var(--theme-danger) 45%,var(--theme-surface));border-color:var(--theme-danger);box-shadow:inset 0 0 0 2px color-mix(in 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2px}.theme-demo-board[data-preview-skin=ink]{--preview-radius:1px}.theme-demo-board[data-preview-skin=cosmos],.theme-demo-board[data-preview-skin=candy]{--preview-radius:12px}.theme-demo-board[data-preview-skin=occult]{--preview-radius:14px 14px 2px 2px}.theme-demo-board[data-preview-skin=neon] .theme-demo-cell:not(.open){background-image:repeating-linear-gradient(0deg,transparent 0 5px,#ff75d60c 5px 6px),linear-gradient(150deg,var(--demo-light),var(--demo-tile));box-shadow:inset 0 0 0 2px #080b1d55,0 2px #070a18}.theme-demo-board[data-preview-skin=arcade] .theme-demo-cell{border-width:2px;border-style:outset;border-radius:0;box-shadow:2px 2px #080c1a}.theme-demo-board[data-preview-skin=ocean] .theme-demo-cell:not(.open){border-bottom-width:3px;background-image:repeating-linear-gradient(90deg,transparent 0 6px,#9bddcf0b 6px 7px),linear-gradient(150deg,var(--demo-light),var(--demo-tile))}.theme-demo-board[data-preview-skin=sakura] .theme-demo-cell:not(.open){background-image:radial-gradient(ellipse at 28% 10%,#ffffffaa,transparent 60%),linear-gradient(150deg,var(--demo-light),var(--demo-tile))}.theme-demo-board[data-preview-skin=empire] .theme-demo-cell:not(.open){border-width:3px;border-style:double;background-image:repeating-linear-gradient(15deg,#ffffff08 0 2px,transparent 2px 7px),linear-gradient(150deg,var(--demo-light),var(--demo-tile))}.theme-demo-board[data-preview-skin=lava] .theme-demo-cell:not(.open){background-image:linear-gradient(132deg,transparent 47%,#ff977928 48% 50%,transparent 51%),linear-gradient(150deg,var(--demo-light),var(--demo-tile))}.theme-demo-board[data-preview-skin=ice] .theme-demo-cell:not(.open){background-image:linear-gradient(135deg,#ffffffa0 0 18%,transparent 20% 61%,#ffffff40 63% 65%,transparent 67%),linear-gradient(150deg,var(--demo-light),var(--demo-tile));box-shadow:inset 1px 1px #fff,0 3px #81a9bd70}.theme-demo-board[data-preview-skin=ink] 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#0e0916}.full-theme-preview[data-preview-theme]{color:var(--preview-text);background:var(--preview-surface);border-color:var(--preview-border)}.full-theme-preview[data-preview-theme] .preview-hud{color:var(--preview-text);border-color:var(--preview-border)}.full-theme-preview[data-preview-theme] button:not(.theme-demo-cell){color:var(--preview-text);background:color-mix(in srgb,var(--preview-accent) 18%,var(--preview-surface));border-color:var(--preview-border)}.full-theme-preview[data-preview-theme] .preview-world-number{color:var(--preview-text);background:color-mix(in srgb,var(--preview-surface) 94%,transparent);border:1px solid var(--preview-border);border-radius:3px;padding:4px 6px;opacity:1;text-shadow:none}:root[data-numbers=arcade] .cell>.cell-glyph{font-weight:900;text-shadow:1px 1px #0004;letter-spacing:-1px}:root[data-numbers=neon] .cell>.cell-glyph{font-weight:750;text-shadow:0 0 calc(3px * var(--glow-strength)) currentColor}:root[data-numbers=empire] .cell>.cell-glyph,:root[data-numbers=occult] .cell>.cell-glyph{font-weight:850}:root[data-numbers=ink] .cell>.cell-glyph{font-weight:900;text-shadow:none}:root[data-numbers=sakura] .cell>.cell-glyph,:root[data-numbers=candy] .cell>.cell-glyph,:root[data-numbers=ice] .cell>.cell-glyph{font-weight:850;text-shadow:none}:root[data-flag=neon] .cell.flag-pop:before{animation:flag-hologram calc(.29s / var(--ui-speed)) ease-out}:root[data-flag=arcade] .cell.flag-pop:before{animation:pixel-reveal calc(.22s / var(--ui-speed)) steps(3,end)}:root[data-flag=ocean] .cell.flag-pop:before{animation:water-reveal calc(.32s / var(--ui-speed)) ease-out}:root[data-flag=ink] .cell.flag-pop:before{animation:flag-seal calc(.26s / var(--ui-speed)) ease-out}:root[data-flag=ice] .cell.flag-pop:before{animation:flag-frost calc(.3s / var(--ui-speed)) ease-out}:root[data-flag=candy] .cell.flag-pop:before{animation:flag-jelly calc(.33s / var(--ui-speed)) ease-out}:root[data-flag=sakura] .cell.flag-pop:before{animation:petal-reveal calc(.3s / var(--ui-speed)) ease-out}:root[data-flag=empire] .cell.flag-pop:before{animation:sand-reveal calc(.29s / var(--ui-speed)) ease-out}:root[data-flag=lava] .cell.flag-pop:before{animation:lava-reveal calc(.26s / var(--ui-speed)) ease-out}:root[data-flag=cosmos] .cell.flag-pop:before{animation:orbit-reveal calc(.3s / var(--ui-speed)) ease-out}:root[data-flag=occult] .cell.flag-pop:before{animation:sigil-reveal calc(.31s / var(--ui-speed)) ease-out}.theme-art{background-color:var(--preview-bg,var(--theme-bg));background-position:center;background-size:cover;pointer-events:none}.theme-card[data-preview-theme]{--preview-radius:10px;color:var(--preview-text,var(--theme-text));background:var(--preview-surface,var(--theme-surface));border-color:var(--preview-border,var(--theme-border))}.theme-card[data-preview-theme] 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theme-reveal{0%{opacity:1;transform:scale(.93)}55%{opacity:.55;transform:scale(1)}to{opacity:0;transform:scale(1)}}@keyframes theme-complete{0%{opacity:0;transform:scale(.96)}30%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1)}}@keyframes neon-reveal{0%{opacity:1;clip-path:polygon(0 0,100% 0,100% 15%,0 15%)}65%{opacity:.8;clip-path:polygon(0 75%,100% 75%,100% 90%,0 90%)}to{opacity:0;clip-path:polygon(0 100%,100% 100%,100% 100%,0 100%)}}@keyframes pixel-reveal{0%{opacity:1;transform:scale(.75)}40%{opacity:1;transform:scale(1.05)}to{opacity:0;transform:scale(1)}}@keyframes water-reveal{0%{opacity:.8;transform:scale(.6)}to{opacity:0;transform:scale(1.2)}}@keyframes petal-reveal{0%{opacity:.9;transform:rotate(-8deg) scale(.78)}to{opacity:0;transform:rotate(12deg) scale(1.1)}}@keyframes sand-reveal{0%{opacity:1;transform:translateY(2px)}55%{opacity:.7}to{opacity:0;transform:translateY(-2px)}}@keyframes lava-reveal{0%{opacity:1;transform:scale(.9) 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