:root{--font-round: ui-rounded, "SF Pro Rounded", "Nunito", "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SFMono-Regular", "Cascadia Code", Consolas, monospace;--bg: #f2f2f7;--bg-deep: #e9e9f0;--bg-glow: rgba(255, 255, 255, .9);--surface: #ffffff;--surface-2: #f7f7fa;--surface-3: #efeff4;--surface-glass: rgba(255, 255, 255, .72);--sheet: #ffffff;--overlay: rgba(17, 17, 20, .34);--ink: #111114;--ink-2: rgba(60, 60, 67, .64);--ink-3: rgba(60, 60, 67, .4);--ink-invert: #ffffff;--line: rgba(60, 60, 67, .12);--line-strong: rgba(60, 60, 67, .24);--accent: #0a84ff;--accent-strong: #0060df;--accent-contrast: #ffffff;--accent-soft: color-mix(in srgb, var(--accent) 13%, transparent);--accent-ghost: color-mix(in srgb, var(--accent) 7%, transparent);--accent-ink: color-mix(in srgb, var(--accent) 82%, #000 18%);--pink: #f2295b;--green: #1e9e4a;--success: #1e9e4a;--orange: #e86a00;--red: #e0342b;--danger: #e0342b;--purple: #8b44d8;--teal: #0b8fa3;--warning: #c47a00;--success-soft: color-mix(in srgb, var(--success) 13%, transparent);--danger-soft: color-mix(in srgb, var(--danger) 12%, transparent);--warning-soft: color-mix(in srgb, var(--warning) 14%, transparent);--pink-soft: color-mix(in srgb, var(--pink) 12%, transparent);--purple-soft: color-mix(in srgb, var(--purple) 12%, transparent);--board-bg: #e7e7ee;--board-cell: #ffffff;--board-given: #f4f4f8;--board-rule: #c7c7d6;--cage-rule: #8a8aa3;--thermo-rule: #b98a70;--board-box-gap: 8px;--board-cell-gap: 3px;--given-ink: #26262b;--entry-ink: var(--accent-ink);--peer-bg: var(--accent-ghost);--same-bg: color-mix(in srgb, var(--accent) 34%, var(--surface));--same-ring: var(--accent-strong);--candidate-bg: color-mix(in srgb, var(--accent) 20%, var(--surface));--mark-hit-bg: var(--ink);--mark-hit-ink: var(--surface);--selected-bg: var(--accent);--selected-ink: #ffffff;--conflict-bg: color-mix(in srgb, var(--danger) 18%, var(--surface));--hint-bg: color-mix(in srgb, var(--warning) 20%, var(--surface));--hint-unit-bg: color-mix(in srgb, var(--warning) 10%, var(--surface));--complete-bg: color-mix(in srgb, var(--success) 18%, var(--surface));--radius-xs: 8px;--radius-sm: 12px;--radius-md: 18px;--radius-lg: 24px;--radius-xl: 32px;--radius-pill: 999px;--shadow-card: 0 10px 30px rgba(17, 17, 20, .07), 0 1px 2px rgba(17, 17, 20, .04);--shadow-soft: 0 4px 16px rgba(17, 17, 20, .06);--shadow-float: 0 18px 50px rgba(17, 17, 20, .18);--shadow-accent: 0 10px 24px color-mix(in srgb, var(--accent) 32%, transparent);--tab-height: 56px;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--shell-gutter: calc(var(--tab-height) + var(--safe-bottom) + 26px);--maxw: 1180px;--screen-w: 1080px;--ease-spring: cubic-bezier(.22, 1.2, .36, 1);--ease-out: cubic-bezier(.2, .8, .2, 1)}[data-theme=dark]{--bg: #000000;--bg-deep: #0b0b0f;--bg-glow: rgba(40, 40, 48, .35);--surface: #1c1c1e;--surface-2: #242427;--surface-3: #2c2c2e;--surface-glass: rgba(28, 28, 30, .72);--sheet: #1c1c1e;--overlay: rgba(0, 0, 0, .62);--ink: #ffffff;--ink-2: rgba(235, 235, 245, .62);--ink-3: rgba(235, 235, 245, .38);--ink-invert: #111114;--line: rgba(235, 235, 245, .13);--line-strong: rgba(235, 235, 245, .26);--accent-ink: color-mix(in srgb, var(--accent) 74%, #fff 26%);--board-bg: #0c0c10;--board-cell: #1d1d20;--board-given: #26262a;--board-rule: #3c3c48;--cage-rule: #6a6a80;--thermo-rule: #c69b82;--given-ink: #f5f5fa;--peer-bg: color-mix(in srgb, var(--accent) 15%, #1d1d20);--same-bg: color-mix(in srgb, var(--accent) 42%, #1d1d20);--same-ring: var(--accent);--candidate-bg: color-mix(in srgb, var(--accent) 30%, #1d1d20);--mark-hit-bg: #ffffff;--mark-hit-ink: #111114;--conflict-bg: color-mix(in srgb, var(--danger) 30%, #1d1d20);--hint-bg: color-mix(in srgb, var(--warning) 30%, #1d1d20);--hint-unit-bg: color-mix(in srgb, var(--warning) 15%, #1d1d20);--complete-bg: color-mix(in srgb, var(--success) 28%, #1d1d20);--shadow-card: 0 14px 34px rgba(0, 0, 0, .42), 0 1px 0 rgba(255, 255, 255, .03) inset;--shadow-soft: 0 4px 16px rgba(0, 0, 0, .32);--shadow-float: 0 24px 60px rgba(0, 0, 0, .66);--shadow-accent: 0 12px 28px color-mix(in srgb, var(--accent) 22%, transparent)}[data-accent=blue]{--accent: #0a84ff;--accent-strong: #0060df}[data-theme=dark][data-accent=blue]{--accent: #3d9bff;--accent-strong: #0a84ff}[data-accent=pink]{--accent: #f2295b;--accent-strong: #cc1244}[data-accent=green]{--accent: #1e9e4a;--accent-strong: #157a38}[data-accent=orange]{--accent: #e8680a;--accent-strong: #c45200}[data-accent=purple]{--accent: #8b44d8;--accent-strong: #6d2bb8}[data-accent=teal]{--accent: #0b8fa3;--accent-strong: #077588}[data-theme=dark][data-accent=pink]{--accent: #ff4f7b;--accent-strong: #f2295b}[data-theme=dark][data-accent=green]{--accent: #3ecf6b;--accent-strong: #1e9e4a}[data-theme=dark][data-accent=orange]{--accent: #ff9f3d;--accent-strong: #e8680a}[data-theme=dark][data-accent=purple]{--accent: #b47bff;--accent-strong: #8b44d8}[data-theme=dark][data-accent=teal]{--accent: #38c6d9;--accent-strong: #0b8fa3}[data-contrast=high]{--ink-2: rgba(60, 60, 67, .82);--ink-3: rgba(60, 60, 67, .58);--line: rgba(60, 60, 67, .34);--line-strong: rgba(60, 60, 67, .55);--board-bg: #d5d5dd;--board-given: #eeeeF3;--board-rule: #a7a7ba;--cage-rule: #5f5f75;--thermo-rule: #8a5b40}[data-theme=dark][data-contrast=high]{--ink-2: rgba(255, 255, 255, .86);--ink-3: rgba(255, 255, 255, .6);--line: rgba(255, 255, 255, .34);--line-strong: rgba(255, 255, 255, .55);--board-bg: #242429;--board-given: #303036;--board-rule: #5c5c6b;--cage-rule: #8b8ba3;--thermo-rule: #d8a98b}[data-cvd=deuteranopia],[data-cvd=protanopia]{--success: #0072b2;--danger: #d55e00;--red: #d55e00;--green: #0072b2;--warning: #a86f00}[data-cvd=tritanopia]{--success: #009e73;--danger: #b34d86;--red: #b34d86;--green: #009e73;--warning: #a86f00}[data-reduced-motion=true] *,[data-reduced-motion=true] *:before,[data-reduced-motion=true] *:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}@media(prefers-reduced-motion:reduce){:root:not([data-reduced-motion=false]) *,:root:not([data-reduced-motion=false]) *:before,:root:not([data-reduced-motion=false]) *:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}*,*:before,*:after{box-sizing:border-box}html{font-size:16px;background:var(--bg);color-scheme:light;scrollbar-gutter:stable;-webkit-text-size-adjust:100%;text-size-adjust:100%}html[data-theme=dark]{color-scheme:dark}html[data-large-text=true]{font-size:18px}body{margin:0;min-height:100dvh;font-family:var(--font-round);font-size:1rem;line-height:1.45;color:var(--ink);background:radial-gradient(900px 640px at 88% -8%,var(--accent-ghost),transparent 62%),radial-gradient(760px 540px at -12% 12%,color-mix(in srgb,var(--pink) 5%,transparent),transparent 60%),var(--bg);background-attachment:fixed;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;overscroll-behavior-y:none}#root{min-height:100dvh}h1,h2,h3,h4,p,figure{margin:0}h1,h2,h3{font-weight:800;letter-spacing:-.025em;text-wrap:balance}h1{font-size:clamp(1.85rem,4.2vw,2.7rem);line-height:1.04}h2{font-size:clamp(1.18rem,2.4vw,1.45rem);line-height:1.16}h3{font-size:1.05rem}p{line-height:1.55}button{font:inherit;color:inherit;background:none;border:0;margin:0;padding:0;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}button:disabled{cursor:not-allowed}input,textarea,select{font:inherit;color:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img,svg{display:block}::selection{background:var(--accent);color:var(--accent-contrast)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}:focus:not(:focus-visible){outline:none}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.tabular{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}.app-shell{position:relative;min-height:100dvh;isolation:isolate;overflow-x:clip}.app-shell.has-tabs{padding-bottom:var(--shell-gutter)}.route-stage{transform-origin:50% 22%;animation:route-swoop .42s var(--ease-spring)}.route-stage.is-forward{animation-name:route-slide-forward}.route-stage.is-back{animation-name:route-slide-back}.route-stage.is-none{animation:none}@keyframes route-swoop{0%{opacity:0;transform:translate3d(0,16px,0) scale(.975)}62%{opacity:1;transform:translate3d(0,-2px,0) scale(1.004)}to{opacity:1;transform:translateZ(0) scale(1)}}@keyframes route-slide-forward{0%{opacity:0;transform:translate3d(30px,6px,0) scale(.985)}to{opacity:1;transform:translateZ(0) scale(1)}}@keyframes route-slide-back{0%{opacity:0;transform:translate3d(-30px,6px,0) scale(.985)}to{opacity:1;transform:translateZ(0) scale(1)}}.tab-bar{position:fixed;z-index:40;left:50%;bottom:calc(8px + var(--safe-bottom));transform:translate(-50%);width:min(calc(100% - 20px),560px);height:var(--tab-height);display:grid;grid-template-columns:repeat(5,1fr);align-items:stretch;padding:5px;border-radius:24px;border:1px solid var(--line);background:var(--surface-glass);box-shadow:var(--shadow-float);backdrop-filter:blur(22px) saturate(160%);-webkit-backdrop-filter:blur(22px) saturate(160%)}.tab-item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;min-width:0;border-radius:18px;color:var(--ink-3);font-size:.66rem;font-weight:750;letter-spacing:.01em;transition:color .16s var(--ease-out),background .16s var(--ease-out),transform .16s var(--ease-out)}.tab-item:hover{color:var(--ink-2);background:color-mix(in srgb,var(--ink) 4%,transparent)}.tab-item.is-active{color:var(--accent);background:var(--accent-soft)}.tab-item.is-active .tab-icon{transform:translateY(-1px) scale(1.03)}.tab-icon{position:relative;display:grid;place-items:center;transition:transform .18s var(--ease-spring)}.tab-dot{position:absolute;top:-1px;right:-4px;width:7px;height:7px;border-radius:50%;background:var(--accent);border:1.5px solid var(--surface)}.tab-item.is-active .tab-dot{background:var(--accent-strong)}.app-banner{position:fixed;z-index:45;left:50%;bottom:calc(var(--tab-height) + var(--safe-bottom) + 18px);transform:translate(-50%);width:min(calc(100% - 28px),520px);display:flex;align-items:center;gap:10px;padding:10px 12px 10px 16px;border:1px solid var(--line);border-radius:18px;background:var(--surface-glass);box-shadow:var(--shadow-float);backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);font-size:.84rem;font-weight:700;animation:rise-in .42s var(--ease-spring) both}.app-banner>span{flex:1;min-width:0}.app-banner>button:not(.app-banner-close){flex:none;padding:7px 12px;border-radius:999px;background:var(--accent);color:var(--accent-contrast);font-size:.76rem;font-weight:800;box-shadow:0 4px 12px color-mix(in srgb,var(--accent) 28%,transparent)}.app-banner>button:not(.app-banner-close):active{transform:scale(.96)}.app-banner-close{display:grid;place-items:center;width:26px;height:26px;flex:none;border-radius:50%;color:var(--ink-3);background:color-mix(in srgb,var(--ink) 6%,transparent)}.empty-screen,.error-screen{position:relative;min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:32px;text-align:center;overflow:hidden}.empty-screen h1,.error-screen h1{font-size:clamp(1.7rem,5vw,2.4rem)}.empty-screen p,.error-screen p{max-width:36ch;color:var(--ink-2)}.empty-mark,.error-mark{display:grid;place-items:center;width:76px;height:76px;border-radius:26px;background:var(--accent-soft);color:var(--accent);font-size:2.4rem;font-weight:900;animation:bob 3s ease-in-out infinite}.error-mark{background:var(--danger-soft);color:var(--danger)}.error-screen small{margin-top:18px;color:var(--ink-3);font-weight:700}.error-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:6px}.error-bubbles{position:absolute;inset:0;pointer-events:none}.error-bubbles span{position:absolute;width:240px;height:240px;border-radius:50%;background:var(--accent-ghost);filter:blur(4px);animation:drift 9s ease-in-out infinite}.error-bubbles span:nth-child(1){top:10%;left:8%}.error-bubbles span:nth-child(2){bottom:4%;right:10%;width:320px;height:320px;animation-delay:-3s}.error-bubbles span:nth-child(3){top:40%;right:32%;width:90px;height:90px;animation-delay:-6s}.generation-overlay{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:24px;background:var(--overlay);backdrop-filter:blur(18px) saturate(130%);-webkit-backdrop-filter:blur(18px) saturate(130%);animation:fade-in .22s ease both}.generation-card{width:min(100%,360px);display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:30px 26px 22px;border-radius:32px;background:var(--sheet);box-shadow:var(--shadow-float);animation:pop-in .38s var(--ease-spring) both}.generation-card h2{font-size:1.3rem}.generation-card p{color:var(--ink-2);font-size:.86rem;font-weight:700}.generation-card .text-button{margin-top:6px}.generation-orbit{position:relative;width:96px;height:96px;display:grid;place-items:center;margin-bottom:6px;border-radius:50%;background:var(--accent-ghost)}.generation-orbit:before{content:"";position:absolute;inset:2px;border-radius:50%;border:2px dashed color-mix(in srgb,var(--accent) 32%,transparent);animation:spin 9s linear infinite}.generation-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;width:52px;height:52px;padding:5px;border-radius:14px;background:var(--surface);box-shadow:var(--shadow-soft)}.generation-grid span{border-radius:3px;background:color-mix(in srgb,var(--ink) 8%,transparent)}.generation-grid span.is-lit{background:var(--accent);animation:cell-glow 1.4s ease-in-out infinite alternate}.generation-grid span:nth-child(2n).is-lit{animation-delay:.35s}.orbit-dot{position:absolute;top:0;left:50%;width:12px;height:12px;margin-left:-6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);transform-origin:6px 48px;animation:orbit 2.6s linear infinite}.generation-bars{display:flex;gap:5px;margin-top:4px}.generation-bars span{width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.35;animation:dots 1.1s ease-in-out infinite}.generation-bars span:nth-child(2){animation-delay:.16s}.generation-bars span:nth-child(3){animation-delay:.32s}.bubble-backdrop{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}.blob{position:absolute;border-radius:50%;filter:blur(1px);opacity:.5;animation:drift 16s ease-in-out infinite}.blob-1{top:-8vmax;right:-6vmax;width:34vmax;height:34vmax;background:radial-gradient(circle at 30% 30%,var(--accent-soft),transparent 68%)}.blob-2{top:24%;left:-14vmax;width:30vmax;height:30vmax;background:radial-gradient(circle at 60% 40%,var(--pink-soft),transparent 68%);animation-delay:-5s}.blob-3{bottom:-16vmax;right:12%;width:40vmax;height:40vmax;background:radial-gradient(circle at 50% 50%,var(--accent-ghost),transparent 65%);animation-delay:-9s}.blob-4{bottom:18%;left:24%;width:12vmax;height:12vmax;background:radial-gradient(circle at 50% 50%,var(--purple-soft),transparent 70%);animation-delay:-3s}.blob-5{top:8%;left:38%;width:8vmax;height:8vmax;background:radial-gradient(circle at 50% 50%,var(--accent-soft),transparent 72%);animation-delay:-12s}.bubble-ring{position:absolute;border-radius:50%;border:1.5px solid color-mix(in srgb,var(--accent) 12%,transparent)}.bubble-ring-1{top:12%;right:12%;width:14vmax;height:14vmax}.bubble-ring-2{bottom:9%;left:8%;width:20vmax;height:20vmax;border-color:color-mix(in srgb,var(--ink) 7%,transparent)}.bubble-backdrop.is-dense .blob{opacity:.72}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes rise-in{0%{opacity:0;transform:translate(-50%,14px)}to{opacity:1;transform:translate(-50%)}}@keyframes pop-in{0%{opacity:0;transform:scale(.92) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}@keyframes drift{0%,to{transform:translateZ(0) scale(1)}50%{transform:translate3d(2%,-2.5%,0) scale(1.04)}}@keyframes bob{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes orbit{to{transform:rotate(360deg)}}@keyframes cell-glow{0%{opacity:.45}to{opacity:1}}@keyframes dots{0%,to{opacity:.28;transform:translateY(0)}50%{opacity:1;transform:translateY(-3px)}}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-5px)}40%{transform:translate(5px)}60%{transform:translate(-3px)}80%{transform:translate(3px)}}@media(max-width:480px){.app-banner{font-size:.8rem;border-radius:16px}.tab-bar{width:calc(100% - 12px);border-radius:22px}.tab-item{font-size:.62rem}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:42px;padding:.62rem 1.05rem;border-radius:14px;border:1px solid transparent;font-size:.88rem;font-weight:800;letter-spacing:-.01em;line-height:1.1;white-space:nowrap;transition:transform .14s var(--ease-spring),background .16s var(--ease-out),color .16s var(--ease-out),box-shadow .16s var(--ease-out),opacity .16s var(--ease-out)}.btn:active:not(:disabled){transform:scale(.97)}.btn:disabled{opacity:.42}.btn-primary{background:var(--accent);color:var(--accent-contrast);box-shadow:var(--shadow-accent)}.btn-primary:hover:not(:disabled){background:var(--accent-strong)}.btn-tinted{background:var(--accent-soft);color:var(--accent-ink)}.btn-tinted:hover:not(:disabled){background:color-mix(in srgb,var(--accent) 18%,transparent)}.btn-plain{background:transparent;color:var(--ink-2)}.btn-plain:hover:not(:disabled){background:color-mix(in srgb,var(--ink) 5%,transparent);color:var(--ink)}.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink);box-shadow:var(--shadow-soft)}.btn-ghost:hover:not(:disabled){border-color:var(--line-strong)}.btn-glass{background:var(--surface-glass);border-color:var(--line);color:var(--ink);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}.btn-danger{background:var(--danger);color:#fff;box-shadow:0 8px 20px color-mix(in srgb,var(--danger) 28%,transparent)}.btn-danger:hover:not(:disabled){background:color-mix(in srgb,var(--danger) 84%,#000)}.btn-sm{min-height:34px;padding:.42rem .75rem;font-size:.78rem;border-radius:11px}.btn-lg{min-height:54px;padding:.82rem 1.35rem;font-size:1rem;border-radius:17px}.btn-lg svg{width:21px;height:21px}.btn-full{width:100%}.icon-btn{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:14px;color:var(--ink-2);background:var(--surface-glass);border:1px solid transparent;transition:background .16s var(--ease-out),color .16s var(--ease-out),transform .14s var(--ease-spring)}.icon-btn:hover:not(:disabled){color:var(--ink);background:var(--surface);border-color:var(--line)}.icon-btn:active:not(:disabled){transform:scale(.94)}.icon-btn.is-active{color:var(--accent);background:var(--accent-soft)}.icon-btn:disabled{opacity:.35}.text-button{display:inline-flex;align-items:center;gap:5px;padding:4px;color:var(--accent);font-size:.82rem;font-weight:800;border-radius:6px}.text-button:hover{text-decoration:underline}.segmented{position:relative;display:grid;grid-template-columns:repeat(var(--seg-count),minmax(0,1fr));padding:4px;border-radius:14px;background:var(--surface-3);isolation:isolate}.segmented-thumb{position:absolute;z-index:0;top:4px;bottom:4px;left:4px;width:calc((100% - 8px) / var(--seg-count));border-radius:11px;background:var(--surface);box-shadow:0 2px 7px #1111141a,0 0 0 .5px var(--line);transform:translate(calc(var(--seg-index) * 100%));transition:transform .26s var(--ease-spring)}[data-theme=dark] .segmented-thumb{background:var(--surface-2);box-shadow:0 2px 8px #0006,0 0 0 .5px var(--line)}.segmented-item{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:5px;min-width:0;min-height:34px;padding:.42rem .4rem;border-radius:11px;color:var(--ink-2);font-size:.78rem;font-weight:750;line-height:1.15;white-space:nowrap;transition:color .16s var(--ease-out)}.segmented-item.is-active{color:var(--ink)}.segmented-item:hover:not(.is-active){color:var(--ink-2)}.segmented-item:disabled,.segmented-item.is-disabled{color:var(--ink-3);opacity:.45;cursor:not-allowed}.segmented-compact .segmented-item{min-height:30px;padding:.34rem .5rem;font-size:.74rem}.segmented-wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(88px,1fr));gap:4px}.segmented-wrap .segmented-thumb{display:none}.segmented-wrap .segmented-item{padding-inline:.4rem}.segmented-wrap .segmented-item.is-active{background:var(--surface);box-shadow:0 2px 7px #1111141a,0 0 0 .5px var(--line)}[data-theme=dark] .segmented-wrap .segmented-item.is-active{background:var(--surface-2);box-shadow:0 2px 8px #0006,0 0 0 .5px var(--line)}.switch-row,.setting-row{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}.switch-row:last-child,.setting-row:last-child{border-bottom:0}.setting-row.is-stacked{align-items:flex-start;flex-direction:column}.switch-copy,.setting-copy{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}.setting-copy{min-width:8.5rem}.setting-control{margin-left:auto}.switch-label,.setting-label{display:flex;align-items:center;gap:8px;font-size:.92rem;font-weight:700;color:var(--ink)}.switch-label svg,.setting-label svg{color:var(--ink-3);flex:none}.switch-description,.setting-description{font-size:.76rem;line-height:1.4;color:var(--ink-3)}.setting-control{flex:none;display:flex;align-items:center;justify-content:flex-end;max-width:62%}.switch-row.is-disabled{opacity:.5}.switch{position:relative;flex:none;width:49px;height:30px;border-radius:999px;background:var(--line-strong);transition:background .2s var(--ease-out)}.switch.is-on{background:var(--success)}.switch-knob{position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:#fff;box-shadow:0 2px 6px #0003;transition:transform .22s var(--ease-spring)}.switch.is-on .switch-knob{transform:translate(19px)}.select{appearance:none;-webkit-appearance:none;min-height:36px;padding:.38rem 2rem .38rem .7rem;border-radius:10px;border:1px solid var(--line);background:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%) calc(100% - 14px) 50% / 5px 5px no-repeat,linear-gradient(135deg,var(--ink-3) 50%,transparent 50%) calc(100% - 9px) 50% / 5px 5px no-repeat,var(--surface);color:var(--ink);font-size:.8rem;font-weight:700}.range{width:150px;accent-color:var(--accent)}.sheet-overlay{position:fixed;inset:0;z-index:90;display:flex;align-items:flex-end;justify-content:center;padding:18px}.sheet-scrim{position:absolute;inset:0;background:var(--overlay);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);animation:fade-in .2s ease both}.sheet{position:relative;z-index:1;display:flex;flex-direction:column;width:min(100%,540px);max-height:min(90dvh,820px);padding:10px 22px calc(18px + var(--safe-bottom));border-radius:28px;background:var(--sheet);box-shadow:var(--shadow-float);animation:sheet-up .36s var(--ease-spring) both}.sheet-sm{width:min(100%,420px)}.sheet-lg{width:min(100%,720px)}.sheet-grabber{width:38px;height:5px;margin:0 auto 12px;border-radius:999px;background:var(--line-strong)}.sheet-header{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding-bottom:12px}.sheet-title{font-size:1.28rem;line-height:1.12}.sheet-subtitle{margin-top:4px;font-size:.8rem;color:var(--ink-2)}.sheet-close{flex:none;width:34px;height:34px;border-radius:50%;background:var(--surface-3)}.sheet-body{overflow-y:auto;overscroll-behavior:contain;padding:2px 2px 6px;scrollbar-width:thin}.sheet-footer{padding-top:14px}.sheet-overlay.is-celebration .sheet{background:radial-gradient(420px 240px at 50% -20%,var(--accent-soft),transparent 70%),var(--sheet)}@keyframes sheet-up{0%{opacity:0;transform:translateY(32px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@media(min-width:720px){.sheet-overlay{align-items:center}.sheet-grabber{display:none}.sheet{padding-top:22px;border-radius:30px}}.star-row{display:inline-flex;align-items:center;gap:5px;color:#f5a623}.star-row .star.is-empty{color:var(--line-strong)}.star-row.is-animated .star{animation:star-pop .56s var(--ease-spring) both}.star-row.is-animated .star:nth-child(2){animation-delay:.11s}.star-row.is-animated .star:nth-child(3){animation-delay:.22s}.star-inline{display:inline-flex;gap:2px;color:#f5a623}@keyframes star-pop{0%{opacity:0;transform:scale(.4) rotate(-18deg)}to{opacity:1;transform:scale(1) rotate(0)}}.progress-ring{position:relative;display:inline-grid;place-items:center;flex:none}.progress-ring svg{position:absolute;inset:0}.progress-ring svg circle{transition:stroke-dashoffset .5s var(--ease-out)}.progress-ring-label{position:relative;z-index:1;font-size:.66rem;font-weight:800;color:var(--ink-2)}.ring-percent{font-size:.65rem;font-weight:800;color:var(--ink-2)}.pill{display:inline-flex;align-items:center;gap:4px;min-height:23px;padding:.18rem .58rem;border-radius:999px;font-size:.66rem;font-weight:800;letter-spacing:.01em;line-height:1;white-space:nowrap}.pill-neutral{background:var(--surface-3);color:var(--ink-2)}.pill-accent{background:var(--accent-soft);color:var(--accent-ink)}.pill-green{background:var(--success-soft);color:var(--success)}.pill-orange{background:var(--warning-soft);color:var(--warning)}.pill-red{background:var(--danger-soft);color:var(--danger)}.pill-purple{background:var(--purple-soft);color:var(--purple)}.toast-viewport{position:fixed;z-index:120;top:calc(14px + var(--safe-top));left:50%;transform:translate(-50%);width:min(calc(100% - 24px),380px);display:flex;flex-direction:column;gap:8px;pointer-events:none}.toast{display:flex;align-items:center;gap:10px;padding:11px 15px;border-radius:16px;border:1px solid var(--line);background:var(--surface-glass);box-shadow:var(--shadow-float);backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);font-size:.82rem;font-weight:750;color:var(--ink);animation:toast-in .36s var(--ease-spring) both}.toast-spark{flex:none;width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px var(--accent-soft)}.toast-success .toast-spark{background:var(--success);box-shadow:0 0 0 5px var(--success-soft)}.toast-achievement{border-color:color-mix(in srgb,#f5a623 42%,var(--line))}.toast-achievement .toast-spark{background:#f5a623;box-shadow:0 0 0 5px #f5a62329}@keyframes toast-in{0%{opacity:0;transform:translateY(-12px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.board{position:relative;display:grid;grid-template-columns:repeat(var(--box-cols),minmax(0,1fr));gap:var(--board-box-gap);width:100%;aspect-ratio:1;padding:var(--board-box-gap);border-radius:clamp(14px,3vw,26px);background:var(--board-rule);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--ink) 4%,transparent),inset 0 2px 8px #1111140d;container-type:inline-size;user-select:none;-webkit-user-select:none;touch-action:none;transition:filter .22s var(--ease-out),opacity .22s var(--ease-out);--box-w: calc((100cqw - (var(--box-cols) - 1) * var(--board-box-gap)) / var(--box-cols));--cell-w: calc((var(--box-w) - (var(--cell-cols) - 1) * var(--board-cell-gap)) / var(--cell-cols));--box-pitch: calc(var(--box-w) + var(--board-box-gap));--cell-pitch: calc(var(--cell-w) + var(--board-cell-gap));--thermo-w: max(2px, calc(var(--cell-w) * .07));--cage-wall-w: 1.5px}[data-theme=dark] .board{box-shadow:inset 0 0 0 1px #ffffff0a}.board.is-dimmed{filter:blur(7px) saturate(.7);opacity:.6;pointer-events:none}.board-box{display:grid;grid-template-columns:repeat(var(--cell-cols),minmax(0,1fr));gap:var(--board-cell-gap);min-width:0;border-radius:clamp(6px,2cqw,14px);background:var(--board-bg)}.cell{position:relative;display:grid;place-items:center;aspect-ratio:1;min-width:0;padding:0;border-radius:clamp(4px,1.4cqw,10px);background:var(--board-cell);color:var(--given-ink);font-family:var(--font-round);font-size:calc(100cqw / var(--board-size) * .44);font-weight:700;line-height:1;overflow:hidden;transition:background .12s var(--ease-out),color .12s var(--ease-out),box-shadow .12s var(--ease-out),transform .12s var(--ease-spring)}.cell.is-given{background:var(--board-given);font-weight:800}.board:where(.variant-diagonal) .cell:where(.is-diagonal){background:color-mix(in srgb,var(--accent) 10%,var(--board-cell))}.board:where(.variant-diagonal) .cell:where(.is-given.is-diagonal){background:color-mix(in srgb,var(--accent) 12%,var(--board-given))}.board:where(.variant-windoku) .cell:where(.is-window){background:color-mix(in srgb,var(--accent) 8%,var(--board-cell))}.board:where(.variant-windoku) .cell:where(.is-given.is-window){background:color-mix(in srgb,var(--accent) 10%,var(--board-given))}[data-contrast=high] .board:where(.variant-diagonal) .cell:where(.is-diagonal){background:color-mix(in srgb,var(--accent) 20%,var(--board-cell))}[data-contrast=high] .board:where(.variant-diagonal) .cell:where(.is-given.is-diagonal){background:color-mix(in srgb,var(--accent) 22%,var(--board-given))}[data-contrast=high] .board:where(.variant-windoku) .cell:where(.is-window){background:color-mix(in srgb,var(--accent) 16%,var(--board-cell))}[data-contrast=high] .board:where(.variant-windoku) .cell:where(.is-given.is-window){background:color-mix(in srgb,var(--accent) 18%,var(--board-given))}.board-windows{position:absolute;inset:0;z-index:3;pointer-events:none}.board-window{position:absolute;box-sizing:border-box;width:var(--box-w);height:var(--box-w);left:calc(var(--board-box-gap) + var(--w-box-x) * var(--box-pitch) + var(--w-cell-x) * var(--cell-pitch));top:calc(var(--board-box-gap) + var(--w-box-y) * var(--box-pitch) + var(--w-cell-y) * var(--cell-pitch));border:1px solid color-mix(in srgb,var(--accent) 26%,transparent);border-radius:clamp(4px,1.4cqw,10px)}[data-contrast=high] .board-window{border-width:2px;border-color:color-mix(in srgb,var(--accent) 58%,transparent)}.board-cages{position:absolute;inset:0;z-index:3;pointer-events:none}.cage-wall{position:absolute;display:block;background:color-mix(in srgb,var(--cage-rule) 64%,transparent);border-radius:0}[data-contrast=high] .cage-wall{background:var(--cage-rule)}.cage-sum{position:absolute;top:2%;left:7%;z-index:2;color:color-mix(in srgb,var(--ink-2) 82%,transparent);font-size:calc(100cqw / var(--board-size) * .18);font-weight:750;line-height:1.1;letter-spacing:-.01em;pointer-events:none}.cell-thermo{position:absolute;inset:0;z-index:0;width:100%;height:100%;pointer-events:none}.thermo-line{fill:none;stroke:var(--thermo-rule);stroke-width:7;stroke-linecap:butt;stroke-linejoin:round}.thermo-bulb{fill:color-mix(in srgb,var(--thermo-rule) 48%,transparent);stroke:none}.board-thermo-links{position:absolute;inset:0;z-index:3;pointer-events:none}.thermo-link{position:absolute;display:block;border-radius:0;background:var(--thermo-rule)}.board.variant-killer .corner-marks{inset:26% 6% 5%}.board.variant-killer .center-marks{padding:24% 8% 5%}.cell.is-entry{color:var(--entry-ink);font-weight:750}.cell.is-peer{background:var(--peer-bg)}.cell.is-same{background:var(--same-bg);box-shadow:inset 0 0 0 2px var(--same-ring);font-weight:850}.cell.is-candidate{background:var(--candidate-bg);box-shadow:inset 0 0 0 1.5px color-mix(in srgb,var(--accent) 42%,transparent)}.cell.is-hint-unit{background:var(--hint-unit-bg)}.cell.is-hint{background:var(--hint-bg);box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--warning) 55%,transparent)}.cell.is-conflict{background:var(--conflict-bg);color:var(--danger)}.cell.is-complete{animation:complete-cell .7s var(--ease-out) both}.cell.is-selected{z-index:2;background:var(--selected-bg);color:var(--selected-ink);box-shadow:0 4px 14px color-mix(in srgb,var(--accent) 40%,transparent);animation:select-pop .18s var(--ease-spring)}.cell.is-selected.is-conflict{background:var(--danger);color:#fff}.cell.is-selected .corner-marks,.cell.is-selected .center-marks{color:#ffffffeb}.cell.has-color:not(.is-selected){background:color-mix(in srgb,var(--cell-color) 22%,var(--board-cell))}.cell:active{transform:scale(.97)}.cell-value{position:relative;z-index:1;display:block;animation:digit-in .16s var(--ease-spring) both}.cell.is-selected .cell-value{color:var(--selected-ink)}.conflict-badge{position:absolute;top:10%;right:10%;width:clamp(3px,1cqw,6px);height:clamp(3px,1cqw,6px);border-radius:50%;background:var(--danger)}.cell.is-selected .conflict-badge{background:#fff}.corner-marks{position:absolute;inset:6%;display:grid;grid-template-columns:repeat(var(--mark-cols),minmax(0,1fr));align-content:start;justify-items:center;gap:1% 2%;color:var(--ink-2);font-size:calc(100cqw / var(--board-size) * .175);line-height:1.1;font-weight:750;pointer-events:none}.corner-marks .mark-slot{display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:1}.center-marks{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:0 5%;padding:8%;color:var(--ink-2);font-size:calc(100cqw / var(--board-size) * .21);font-weight:750;line-height:1.05;pointer-events:none}.center-marks .mark{display:block}.corner-marks .mark-slot.is-mark-hit,.center-marks .mark.is-mark-hit{background:var(--mark-hit-bg);color:var(--mark-hit-ink);border-radius:4px;font-weight:900;box-shadow:0 0 0 1px var(--mark-hit-bg)}.center-marks .mark.is-mark-hit{padding:0 .12em}.large-marks .corner-marks{color:var(--ink);font-weight:800}[data-digit-style=emoji] .cell-value{font-size:calc(100cqw / var(--board-size) * .36)}[data-digit-style=emoji] .center-marks,[data-digit-style=emoji] .corner-marks{font-size:calc(100cqw / var(--board-size) * .16)}.board-spec{--board-box-gap: 8px}@keyframes digit-in{0%{opacity:0;transform:scale(.55)}to{opacity:1;transform:scale(1)}}@keyframes select-pop{0%{transform:scale(.94)}to{transform:scale(1)}}@keyframes complete-cell{0%{background:var(--board-cell);transform:scale(1)}35%{background:var(--complete-bg);transform:scale(1.06)}to{background:var(--complete-bg);transform:scale(1)}}.number-pad{display:grid;grid-template-columns:repeat(var(--pad-count),minmax(0,1fr));gap:clamp(3px,.7vw,8px);width:100%}.pad-key{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:0;min-height:clamp(44px,7.2vh,60px);padding:4px 2px;border-radius:clamp(9px,1.6vw,14px);border:1px solid var(--line);background:var(--surface);color:var(--ink);box-shadow:0 2px 5px #1111140d;transition:transform .11s var(--ease-spring),background .12s var(--ease-out),opacity .12s}.pad-key:hover:not(:disabled){background:var(--surface-2)}.pad-key:active:not(:disabled){transform:scale(.94);background:var(--accent-soft)}.pad-key.is-finished{color:color-mix(in srgb,var(--success) 70%,var(--ink));background:var(--success-soft);box-shadow:inset 0 0 0 1.5px color-mix(in srgb,var(--success) 45%,transparent);animation:pad-finish .42s var(--ease-spring)}.pad-key.is-finished:hover:not(:disabled),.pad-key.is-finished:active:not(:disabled){background:var(--success-soft)}.pad-key.is-finished .pad-count{color:color-mix(in srgb,var(--success) 70%,var(--ink))}@keyframes pad-finish{0%{transform:scale(.92)}55%{transform:scale(1.05)}to{transform:scale(1)}}.pad-digit{font-size:clamp(1rem,2.2vw,1.35rem);font-weight:800;line-height:1.05}.pad-count{display:flex;align-items:center;justify-content:center;min-height:12px;font-size:.56rem;font-weight:750;color:var(--ink-3);font-variant-numeric:tabular-nums}.number-pad.is-colors .pad-key{min-height:clamp(40px,6.5vh,54px)}.color-dot{width:55%;max-width:26px;aspect-ratio:1;border-radius:50%;background:var(--cell-color);box-shadow:inset 0 0 0 1px #00000014}.share-preview-card{padding:16px;border-radius:22px;background:radial-gradient(220px 190px at 100% 0,var(--accent-soft),transparent 70%),var(--surface-2);border:1px solid var(--line)}.share-preview-head,.share-preview-foot{display:flex;align-items:center;justify-content:space-between;gap:10px}.share-logo{font-size:1rem;font-weight:900;letter-spacing:-.03em}.share-tier,.share-preview-foot{font-size:.7rem;font-weight:750;color:var(--ink-2)}.share-preview-foot{padding-top:10px}.share-mini{display:grid;grid-template-columns:repeat(var(--mini-size, 9),minmax(0,1fr));gap:2px;margin:12px 0 4px;padding:7px;border-radius:12px;background:var(--board-bg)}.share-mini-cell{display:grid;place-items:center;aspect-ratio:1;border-radius:2.5px;background:var(--board-cell);color:var(--given-ink);font-size:clamp(.35rem,1.2vw,.62rem);font-weight:800;line-height:1}.share-mini-cell.box-top{box-shadow:inset 0 2px color-mix(in srgb,var(--ink) 22%,transparent)}.share-mini-cell.box-left{box-shadow:inset 2px 0 color-mix(in srgb,var(--ink) 22%,transparent)}.share-mini-cell.box-top.box-left{box-shadow:inset 0 2px color-mix(in srgb,var(--ink) 22%,transparent),inset 2px 0 color-mix(in srgb,var(--ink) 22%,transparent)}.share-mini-cell{position:relative}.share-mini-cell.has-sum{padding-top:18%}.share-mini-sum{position:absolute;top:1px;left:2px;color:var(--ink-2);font-size:clamp(.3rem,1vw,.5rem);font-weight:800;line-height:1}.share-mini-thermo{position:absolute;inset:0;z-index:0;width:100%;height:100%;pointer-events:none}.share-mini-value{position:relative;z-index:1}.share-mini-cell.cage-right:after{content:"";position:absolute;top:-1.5px;bottom:-1.5px;right:-1.5px;width:1.5px;background:color-mix(in srgb,var(--cage-rule) 64%,transparent)}.share-mini-cell.cage-down:before{content:"";position:absolute;left:-1.5px;right:-1.5px;bottom:-1.5px;height:1.5px;background:color-mix(in srgb,var(--cage-rule) 64%,transparent)}.share-code-block{margin-top:14px;padding:11px 13px;border-radius:14px;background:var(--surface-3)}.share-code-label{display:block;font-size:.64rem;font-weight:800;text-transform:uppercase;letter-spacing:.07em;color:var(--ink-3)}.share-code{display:block;margin-top:4px;font-family:var(--font-mono);font-size:.72rem;line-height:1.45;word-break:break-all;color:var(--ink-2)}.share-actions{display:flex;flex-direction:column;gap:9px;margin-top:14px}.share-actions-row{display:grid;grid-template-columns:1fr 1fr;gap:9px}.share-note,.pause-note{display:flex;align-items:flex-start;gap:6px;margin-top:12px;font-size:.72rem;line-height:1.45;color:var(--ink-3)}.share-note svg,.pause-note svg{flex:none;margin-top:1px}.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.confirm-body{color:var(--ink-2);font-size:.9rem}.confirm-note{margin-top:8px;color:var(--ink-3);font-size:.82rem}.confirm-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:18px}.confirm-actions .btn{flex:1}.card-head h2{font-size:1.02rem}@media(max-width:560px){.board{--board-box-gap: 7px;--board-cell-gap: 2.5px}.setting-control{max-width:58%}.switch-row,.setting-row{gap:10px;padding:12px 0}.sheet{padding-left:18px;padding-right:18px}}.screen-header{position:relative;z-index:1;width:min(100%,var(--screen-w, 1080px));margin:0 auto;padding:clamp(18px,4vw,38px) clamp(16px,4vw,34px) 10px;display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.screen-header>div:first-child{min-width:0}.screen-header h1{margin-top:4px}.screen-header p:not(.screen-eyebrow){margin-top:7px;max-width:58ch;color:var(--ink-2);font-size:.88rem;line-height:1.5}.screen-eyebrow{font-size:.66rem;font-weight:850;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}.header-link{display:inline-flex;align-items:center;gap:6px;margin-bottom:10px;color:var(--ink-2);font-size:.8rem;font-weight:750;border-radius:8px}.header-link:hover{color:var(--accent);text-decoration:none}.empty-note{width:min(100%,460px);margin:34px auto;padding:24px;text-align:center;color:var(--ink-3);font-size:.84rem;border-radius:18px;background:var(--surface);border:1px dashed var(--line-strong)}.empty-note.is-heading{color:var(--ink-2);font-size:1rem;font-weight:700}.accent-blue{--card-accent: #0a84ff;--card-soft: color-mix(in srgb, #0a84ff 13%, transparent)}.accent-pink{--card-accent: #f2295b;--card-soft: color-mix(in srgb, #f2295b 13%, transparent)}.accent-green{--card-accent: #1e9e4a;--card-soft: color-mix(in srgb, #1e9e4a 13%, transparent)}.accent-orange{--card-accent: #e8680a;--card-soft: color-mix(in srgb, #e8680a 13%, transparent)}.accent-purple{--card-accent: #8b44d8;--card-soft: color-mix(in srgb, #8b44d8 13%, transparent)}.accent-teal{--card-accent: #0b8fa3;--card-soft: color-mix(in srgb, #0b8fa3 13%, transparent)}.home-screen{position:relative;display:flex;flex-direction:column;min-height:calc(100dvh - var(--shell-gutter))}.home-header{flex:none;align-items:flex-start}.about-mark,.welcome-mark,.home-mark{display:grid;place-items:center;width:52px;height:52px;flex:none;border-radius:18px;background:radial-gradient(90% 90% at 28% 18%,rgba(255,255,255,.4),transparent 60%),var(--accent);box-shadow:var(--shadow-accent),inset 0 1px #ffffff52}.home-mark{align-self:center;margin:0}.home-title{display:flex;align-items:center;gap:12px;min-width:0}.brand-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:3px;width:26px;height:26px}.brand-grid>span{border-radius:3px;background:#ffffff3d;box-shadow:inset 0 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#ffffff47}.play-card-copy{display:flex;flex-direction:column;flex:1;min-width:0}.play-card-copy strong{font-size:clamp(1.25rem,3vw,1.5rem);font-weight:850;letter-spacing:-.03em;line-height:1.05}.play-card-copy span{margin-top:4px;font-size:.78rem;font-weight:650;color:#ffffffd6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.play-card-arrow{display:grid;place-items:center;width:38px;height:38px;flex:none;border-radius:50%;background:#ffffff29}.continue-card{position:relative;display:flex;align-items:center;gap:14px;width:100%;padding:14px 16px;border-radius:22px;border:1px solid color-mix(in srgb,var(--accent) 16%,var(--line));background:radial-gradient(160px 120px at 100% 0,var(--accent-soft),transparent 70%),var(--surface);box-shadow:var(--shadow-card);text-align:left;transition:transform .18s var(--ease-spring),box-shadow .18s var(--ease-out);animation:rise .46s var(--ease-spring) 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.segmented-item{min-height:40px}.mode-segmented{margin-bottom:0}.mode-option{display:inline-flex;align-items:center;gap:5px}.play-setup{display:grid;grid-template-columns:minmax(0,1fr);gap:8px;margin-bottom:0}.tier-picker{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin-bottom:0}.tier-card{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:5px;padding:10px 11px;border-radius:13px;border:1px solid var(--line);background:var(--surface-2);text-align:left;transition:border-color .16s var(--ease-out),background .16s var(--ease-out),transform .16s var(--ease-spring)}.tier-card:hover{border-color:var(--line-strong)}.tier-card.is-active{border-color:color-mix(in srgb,var(--accent) 48%,transparent);background:var(--accent-soft);transform:translateY(-1px)}.tier-dots{display:flex;gap:2.5px}.tier-dots span{width:5px;height:5px;border-radius:50%;background:var(--line-strong)}.tier-dots span.is-on{background:var(--accent)}.tier-name{font-size:.8rem;font-weight:800}.daily-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin:4px 0 14px}.daily-strip-item{display:flex;align-items:center;gap:8px;padding:10px;border-radius:13px;background:var(--surface-2);color:var(--accent)}.daily-strip-item>span{display:flex;flex-direction:column;min-width:0}.daily-strip-item strong{font-size:.8rem;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.daily-strip-item small{font-size:.6rem;color:var(--ink-3)}.home-start{margin-top:2px}@media(min-width:900px){.home-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:stretch}.home-hero.is-solo .play-card{grid-column:1 / -1}}.home-footer{display:flex;align-items:center;justify-content:center;gap:5px;width:min(100%,var(--screen-w, 1080px));margin:0 auto;padding:24px clamp(16px,4vw,34px) 8px;color:var(--ink-3);font-size:.66rem;font-weight:650}.home-footer a{color:var(--ink-3)}.home-footer a:hover{color:var(--accent)}.confetti-canvas{position:fixed;inset:0;z-index:60;display:block;width:100%;height:100%;pointer-events:none}@keyframes rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.daily-screen,.packs-screen,.learn-screen,.stats-screen,.settings-screen,.about-screen,.import-screen{position:relative;min-height:calc(100dvh - var(--shell-gutter))}.daily-main,.packs-list,.learn-list,.stats-main,.settings-main,.about-main,.import-main{position:relative;z-index:1;width:min(100%,var(--screen-w, 1080px));margin:0 auto;padding:10px clamp(16px,4vw,34px) 34px;display:flex;flex-direction:column;gap:14px}.daily-hero{padding:20px;border-radius:28px;background:radial-gradient(240px 200px at 100% 0,var(--accent-soft),transparent 70%),var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card)}.daily-hero-top{display:flex;flex-wrap:wrap;gap:6px}.daily-hero h2{margin-top:12px;font-size:clamp(1.4rem,4vw,1.9rem)}.daily-hero>p{margin-top:4px;color:var(--ink-2);font-size:.82rem}.daily-result-row{display:flex;align-items:center;gap:12px;margin:10px 0 2px;font-size:.74rem;font-weight:750;color:var(--ink-2)}.daily-hero .btn{margin-top:16px}.daily-reset{display:flex;align-items:center;justify-content:center;gap:5px;margin-top:10px;color:var(--ink-3);font-size:.68rem;font-weight:650}.daily-streak-card{display:flex;align-items:center;gap:15px;padding:17px 19px;border-radius:22px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-soft)}.streak-flame{display:flex;align-items:center;gap:7px;color:var(--orange)}.streak-flame strong{font-size:1.9rem;line-height:1;letter-spacing:-.04em;color:var(--ink)}.streak-copy{display:flex;flex-direction:column;flex:1}.streak-copy span,.streak-best span{font-size:.76rem;font-weight:750;color:var(--ink-2)}.streak-copy small{font-size:.66rem;color:var(--ink-3)}.streak-best{display:flex;flex-direction:column;align-items:flex-end;padding-left:16px;border-left:1px solid var(--line)}.streak-best strong{font-size:1.2rem}.daily-calendar{padding:18px;border-radius:24px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-soft)}.calendar-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:13px}.calendar-head h2{font-size:1rem}.calendar-head span{font-size:.72rem;font-weight:700;color:var(--ink-3)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.calendar-weekday{display:grid;place-items:center;height:24px;font-size:.6rem;font-weight:800;color:var(--ink-3);text-transform:uppercase}.calendar-nav{display:flex;align-items:center;gap:4px}.calendar-nav-button{display:grid;place-items:center;width:26px;height:26px;padding:0;border:0;border-radius:50%;background:var(--surface-2);color:var(--ink-2);cursor:pointer;transition:background .14s var(--ease-out),color .14s var(--ease-out)}.calendar-nav-button:not(:disabled):hover{background:var(--accent-soft);color:var(--accent)}.calendar-nav-button:disabled{opacity:.32;cursor:default}.calendar-slot{display:grid}.calendar-day{display:grid;place-items:center;position:relative;width:100%;aspect-ratio:1;max-height:46px;padding:0;border:0;border-radius:10px;background:var(--surface-2);color:var(--ink-2);font-family:inherit;font-size:.72rem;font-weight:750;font-variant-numeric:tabular-nums;cursor:pointer;transition:background .14s var(--ease-out),color .14s var(--ease-out)}.calendar-day:not(:disabled):hover{background:var(--accent-ghost);color:var(--accent)}.calendar-day:disabled{cursor:default}.calendar-day.is-blank{background:transparent}.calendar-day.is-future,.calendar-day.is-unavailable{opacity:.32}.calendar-day.is-solved{background:var(--accent-soft);color:var(--accent)}.calendar-day.is-in-progress{color:var(--accent);font-weight:850;box-shadow:inset 0 0 0 1.5px var(--accent-soft)}.calendar-dot{position:absolute;bottom:5px;left:50%;width:5px;height:5px;border-radius:50%;background:currentColor;transform:translate(-50%)}.calendar-day.is-today{box-shadow:inset 0 0 0 2px var(--accent);color:var(--accent);font-weight:850}.calendar-day.is-today.is-solved{background:var(--accent);color:var(--accent-contrast)}.calendar-note{margin-top:11px;font-size:.68rem;color:var(--ink-3);text-align:center}.calendar-legend{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:6px;font-size:.68rem;color:var(--ink-3)}.calendar-legend .calendar-dot{position:static;transform:none;color:var(--accent)}.calendar-archive-note{margin-top:8px;font-size:.68rem;color:var(--ink-3);text-align:center}.daily-learn-link{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:19px;border:1px solid var(--line);background:var(--surface);text-align:left;box-shadow:var(--shadow-soft)}.daily-learn-link>span{display:flex;flex-direction:column;flex:1}.daily-learn-link>svg:first-child{color:var(--accent)}.daily-learn-link strong{font-size:.84rem}.packs-stars{display:flex;align-items:center;gap:5px;padding:8px 12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:#f5a623;font-size:.72rem;white-space:nowrap}.packs-stars strong{color:var(--ink);font-size:.9rem}.packs-stars span{color:var(--ink-3)}.packs-list{gap:12px}.pack-card{position:relative;display:grid;grid-template-columns:82px minmax(0,1fr) auto;align-items:center;gap:16px;width:100%;padding:16px;border-radius:24px;border:1px solid var(--line);background:radial-gradient(220px 160px at 100% -20%,var(--card-soft, var(--accent-soft)),transparent 72%),var(--surface);box-shadow:var(--shadow-card);text-align:left;transition:transform .18s var(--ease-spring),box-shadow .18s var(--ease-out),border-color .18s}.pack-card:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--card-accent, var(--accent)) 30%,var(--line));box-shadow:var(--shadow-float)}.pack-card.is-locked{filter:saturate(.55);opacity:.72}.pack-card.is-locked:hover{transform:none}.pack-art{position:relative;display:grid;place-items:center;width:82px;height:96px;border-radius:20px;background:radial-gradient(80% 80% at 30% 20%,rgba(255,255,255,.26),transparent 65%),var(--card-accent, var(--accent));box-shadow:0 10px 22px var(--card-soft, var(--accent-soft));overflow:hidden}.pack-art:after{content:"";position:absolute;right:-14px;bottom:-18px;width:64px;height:64px;border-radius:50%;border:10px solid rgba(255,255,255,.14)}.pack-art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;width:46px;height:46px}.pack-art-grid span{border-radius:3px;background:#ffffff38}.pack-art-grid span.is-lit{background:#ffffffeb}.pack-complete{position:absolute;right:7px;bottom:7px;display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:#fff;color:var(--card-accent, var(--accent))}.pack-copy{display:flex;flex-direction:column;min-width:0}.pack-kicker{font-size:.58rem;font-weight:850;letter-spacing:.1em;text-transform:uppercase;color:var(--card-accent, var(--accent))}.pack-title{margin-top:1px;font-size:1.18rem;font-weight:850;letter-spacing:-.03em}.pack-description{margin-top:2px;font-size:.72rem;line-height:1.4;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.pack-meta{display:flex;align-items:center;gap:10px;margin-top:8px;font-size:.62rem;color:var(--ink-3)}.pack-stars-inline{display:inline-flex;align-items:center;gap:3px;color:#f5a623;font-weight:750}.pack-progress{display:block;height:4px;margin-top:6px;border-radius:99px;background:var(--surface-3);overflow:hidden}.pack-progress>span{display:block;height:100%;border-radius:inherit;background:var(--card-accent, var(--accent));transition:width .5s var(--ease-out)}.pack-action{display:flex;align-items:center;justify-content:flex-end;color:var(--ink-3);min-width:66px}.pack-lock{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:.54rem;font-weight:750;color:var(--ink-3);text-align:center}.packs-footer{display:flex;align-items:center;justify-content:center;gap:5px;padding:8px 16px 28px;color:var(--ink-3);font-size:.66rem}.packs-footer svg{color:var(--pink)}.pack-detail-screen{position:relative;min-height:calc(100dvh - var(--shell-gutter))}.pack-detail-header{position:relative;z-index:1;width:min(100%,880px);margin:0 auto;display:flex;align-items:flex-start;gap:14px;padding:calc(18px + var(--safe-top)) clamp(16px,4vw,34px) 12px}.pack-detail-copy{flex:1;min-width:0;padding-top:2px}.pack-detail-copy h1{margin-top:2px;font-size:clamp(1.7rem,4.5vw,2.35rem)}.pack-detail-copy>p:not(.screen-eyebrow){margin-top:5px;color:var(--ink-2);font-size:.8rem}.pack-detail-pills{display:flex;flex-wrap:wrap;gap:5px;margin-top:9px}.pack-detail-header .progress-ring{margin-top:3px}.pack-puzzle-list{position:relative;z-index:1;width:min(100%,880px);margin:0 auto;padding:8px clamp(16px,4vw,34px) 34px;display:flex;flex-direction:column;gap:8px}.pack-puzzle-row{display:grid;grid-template-columns:42px minmax(0,1fr) auto auto;align-items:center;gap:12px;width:100%;padding:13px 14px;border-radius:18px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-soft);text-align:left;transition:transform .15s var(--ease-spring),border-color .15s}.pack-puzzle-row:hover{transform:translate(2px);border-color:color-mix(in srgb,var(--card-accent, var(--accent)) 30%,var(--line))}.pack-puzzle-row.is-solved{background:linear-gradient(90deg,var(--card-soft, var(--accent-soft)),transparent 42%),var(--surface)}.puzzle-number{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:var(--surface-2);color:var(--card-accent, var(--accent));font-size:.78rem;font-weight:850;font-variant-numeric:tabular-nums}.pack-puzzle-row.is-solved .puzzle-number{background:var(--card-soft, var(--accent-soft))}.puzzle-copy{display:flex;flex-direction:column;min-width:0}.puzzle-copy strong{font-size:.86rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.puzzle-copy small{font-size:.65rem;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.puzzle-progress{display:flex;flex-direction:column;align-items:flex-end;gap:2px}.puzzle-progress small{font-size:.6rem;color:var(--ink-3);font-variant-numeric:tabular-nums}.puzzle-chevron{color:var(--ink-3)}.pack-author{margin-top:14px;text-align:center;color:var(--ink-3);font-size:.66rem}.locked-pack{width:min(calc(100% - 32px),460px);margin:30px auto;display:flex;flex-direction:column;align-items:center;text-align:center;gap:9px;padding:30px 24px;border-radius:26px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card)}.locked-icon{display:grid;place-items:center;width:64px;height:64px;border-radius:22px;background:var(--surface-3);color:var(--ink-3)}.locked-pack h2{font-size:1.2rem}.locked-pack p{font-size:.82rem;color:var(--ink-2)}.locked-progress{display:flex;align-items:center;gap:4px;font-weight:850;color:#f5a623!important}.learn-progress{flex:none;padding-top:4px}.learn-list{gap:10px}.learn-summary{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:2px}.learn-card{position:relative;display:flex;align-items:flex-start;gap:13px;width:100%;padding:15px;border-radius:21px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-soft);text-align:left;transition:transform .16s var(--ease-spring),border-color .16s}.learn-card:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--card-accent, var(--accent)) 34%,var(--line))}.learn-card.is-done{background:linear-gradient(100deg,var(--card-soft, var(--accent-soft)),transparent 46%),var(--surface)}.learn-icon{display:grid;place-items:center;width:46px;height:46px;flex:none;border-radius:15px;background:var(--card-soft, var(--accent-soft));color:var(--card-accent, var(--accent))}.learn-copy{display:flex;flex-direction:column;min-width:0;flex:1}.learn-kicker{font-size:.58rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase;color:var(--card-accent, var(--accent))}.learn-copy strong{margin-top:1px;font-size:.98rem;font-weight:850;letter-spacing:-.02em}.learn-copy small{margin-top:3px;font-size:.72rem;line-height:1.42;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.learn-tags{display:flex;align-items:center;flex-wrap:wrap;gap:7px;margin-top:8px}.learn-done{display:inline-flex;align-items:center;gap:3px;color:var(--success);font-size:.62rem;font-weight:800}.learn-chevron{flex:none;margin-top:12px;color:var(--ink-3)}.lesson-screen{position:relative;min-height:calc(100dvh - var(--shell-gutter))}.lesson-top{position:relative;z-index:1;width:min(100%,var(--screen-w, 1080px));margin:0 auto;display:flex;align-items:center;gap:10px;padding:calc(12px + var(--safe-top)) clamp(16px,4vw,34px) 4px}.lesson-progress-text{flex:1;font-size:.7rem;font-weight:800;color:var(--ink-3);letter-spacing:.04em}.lesson-status{display:inline-flex;align-items:center;gap:4px;color:var(--ink-3);font-size:.66rem;font-weight:800}.lesson-status.is-done{color:var(--success)}.lesson-main{position:relative;z-index:1;width:min(100%,var(--screen-w, 1080px));margin:0 auto;padding:12px clamp(16px,4vw,34px) 36px;display:flex;flex-direction:column;gap:18px}.lesson-body,.lesson-aside{display:flex;flex-direction:column;gap:18px;min-width:0}.lesson-hero{display:flex;gap:15px;align-items:flex-start;padding:20px;border-radius:26px;background:radial-gradient(200px 140px at 100% 0,var(--card-soft, var(--accent-soft)),transparent 72%),var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card)}.lesson-hero-icon{display:grid;place-items:center;width:62px;height:62px;flex:none;border-radius:21px;background:var(--card-accent, var(--accent));color:#fff;box-shadow:0 8px 20px var(--card-soft, var(--accent-soft))}.lesson-hero h1{margin-top:3px;font-size:clamp(1.55rem,5vw,2.15rem)}.lesson-hero p:not(.screen-eyebrow){margin-top:7px;color:var(--ink-2);font-size:.86rem;line-height:1.55}.lesson-block{padding:19px;border-radius:23px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-soft)}.lesson-block>h2{display:flex;align-items:center;gap:8px;font-size:1rem;margin-bottom:14px}.section-number{display:grid;place-items:center;width:24px;height:24px;border-radius:8px;background:var(--card-soft, var(--accent-soft));color:var(--card-accent, var(--accent));font-size:.68rem;font-weight:850}.lesson-steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:13px}.lesson-steps li{display:flex;align-items:flex-start;gap:11px;font-size:.84rem;line-height:1.5;color:var(--ink-2)}.lesson-step-number{display:grid;place-items:center;width:24px;height:24px;flex:none;border-radius:50%;border:1.5px solid color-mix(in srgb,var(--card-accent, var(--accent)) 38%,transparent);color:var(--card-accent, var(--accent));font-size:.65rem;font-weight:850}.lesson-tip{display:flex;align-items:flex-start;gap:11px;padding:15px 17px;border-radius:19px;border:1px solid color-mix(in srgb,var(--warning) 22%,var(--line));background:var(--warning-soft);color:var(--warning)}.lesson-tip svg{flex:none;margin-top:1px}.lesson-tip strong{display:block;font-size:.76rem;margin-bottom:2px}.lesson-tip p{color:var(--ink-2);font-size:.78rem;line-height:1.5}.lesson-practice{display:flex;align-items:center;gap:18px;padding:20px;border-radius:25px;background:radial-gradient(180px 150px at 90% 0,var(--card-soft, var(--accent-soft)),transparent 70%),var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card)}.lesson-practice-copy{flex:1;min-width:0}.lesson-practice-copy h2{margin-top:2px;font-size:1.15rem}.lesson-practice-copy p:not(.screen-eyebrow){margin-top:3px;color:var(--ink-2);font-size:.78rem}.lesson-practice-copy 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var(--line);box-shadow:var(--shadow-soft)}.game-chart{display:flex;align-items:flex-end;justify-content:space-between;gap:8px;height:180px;margin-top:16px;padding-top:12px}.chart-column{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:6px;flex:1;height:100%;min-width:0}.chart-bar-track{position:relative;display:flex;align-items:flex-end;justify-content:center;width:100%;flex:1;min-height:0}.chart-bar{position:relative;width:min(100%,34px);min-height:8px;border-radius:9px 9px 5px 5px;display:flex;align-items:flex-start;justify-content:center;transition:height .5s var(--ease-out)}.chart-bar.is-won{background:linear-gradient(180deg,var(--accent),color-mix(in srgb,var(--accent) 55%,transparent))}.chart-bar.is-lost{background:linear-gradient(180deg,var(--line-strong),color-mix(in srgb,var(--line-strong) 60%,transparent))}.chart-bar span{position:absolute;top:-16px;font-size:.54rem;font-weight:800;color:var(--ink-3);white-space:nowrap}.chart-column 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var(--line);background:var(--surface-2);opacity:.58}.achievement.is-unlocked{opacity:1;background:radial-gradient(80px 60px at 100% 0,rgba(245,166,35,.12),transparent 70%),var(--surface)}.achievement-icon{display:grid;place-items:center;width:32px;height:32px;flex:none;border-radius:10px;background:var(--surface-3);color:var(--ink-3)}.achievement.is-unlocked .achievement-icon{background:#f5a62324;color:#d78d00}.achievement-copy{display:flex;flex-direction:column;min-width:0}.achievement-copy strong{font-size:.7rem;font-weight:800}.achievement-copy small{margin-top:1px;font-size:.6rem;line-height:1.35;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.achievement-date{margin-top:3px;font-size:.54rem;font-weight:700;color:#b57a00}.recent-list{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column}.recent-list li{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid 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var(--line);box-shadow:var(--shadow-soft)}.streak-card>div:not(.progress-ring){display:flex;flex-direction:column}.streak-card span{font-size:.62rem;color:var(--ink-3);font-weight:700}.streak-card strong{font-size:1.5rem;line-height:1.1;letter-spacing:-.03em}.streak-card .progress-ring{color:var(--warning)}.settings-version{flex:none;padding:6px 10px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:.62rem;font-weight:750;color:var(--ink-3);white-space:nowrap}.settings-card{padding:18px;border-radius:23px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-soft)}.settings-card>h2{display:flex;align-items:center;gap:7px;margin-bottom:9px;font-size:.95rem}.settings-card>h2 svg{color:var(--accent)}.settings-note{display:flex;align-items:flex-start;gap:6px;margin-top:10px;color:var(--ink-3);font-size:.68rem;line-height:1.45}.settings-note 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h2{display:flex;align-items:center;gap:7px;margin-bottom:9px;font-size:.95rem}.about-card h2 svg{color:var(--accent)}.about-card p{color:var(--ink-2);font-size:.8rem;line-height:1.55}.about-card p+p{margin-top:8px}.about-muted{color:var(--ink-3)!important;font-size:.72rem!important}.author-card{display:flex;gap:15px;align-items:flex-start;background:radial-gradient(200px 140px at 100% 0,var(--accent-soft),transparent 70%),var(--surface)}.author-avatar{display:grid;place-items:center;width:58px;height:58px;flex:none;border-radius:20px;background:var(--accent);color:var(--accent-contrast);font-size:1.5rem;font-weight:900;box-shadow:var(--shadow-accent)}.author-copy{min-width:0}.author-copy h2{margin-bottom:2px;font-size:1.35rem}.author-link{display:inline-flex;align-items:center;gap:5px;margin-top:8px;padding:6px 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small{margin-top:5px;color:var(--ink-3);font-size:.62rem}.about-actions{display:flex;gap:9px;justify-content:center;flex-wrap:wrap}.import-side{display:flex;flex-direction:column;gap:14px;min-width:0}.import-card,.import-preview-card,.import-help{padding:18px;border-radius:23px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-soft)}.import-card h2,.import-preview-card h2,.import-help h2{display:flex;align-items:center;gap:6px;font-size:.95rem}.import-textarea{width:100%;min-height:112px;margin-top:11px;padding:13px;border-radius:15px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);font-family:var(--font-mono);font-size:.76rem;line-height:1.5;resize:vertical;transition:border-color .16s,box-shadow .16s}.import-textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.import-textarea::placeholder{color:var(--ink-3)}.import-actions{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin-top:9px}.import-actions .text-button{margin-left:auto}.import-status{display:flex;align-items:center;gap:7px;margin-top:10px;padding:9px 11px;border-radius:11px;font-size:.72rem;font-weight:700}.import-status.is-busy{color:var(--ink-2);background:var(--surface-2)}.import-status.is-error{color:var(--danger);background:var(--danger-soft)}.spinner{width:13px;height:13px;border-radius:50%;border:2px solid var(--line-strong);border-top-color:var(--accent);animation:spin .8s linear infinite}.import-pills{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:5px}.import-board-preview{width:min(100%,330px);margin:14px auto 10px}.import-meta{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin:4px 2px 13px;font-size:.66rem;color:var(--ink-3)}.import-meta strong{color:var(--ink)}.import-help h2{margin-bottom:7px}.import-help p{font-size:.78rem;color:var(--ink-2)}.import-help-note{margin-top:7px;font-size:.7rem!important;color:var(--ink-3)!important}.onboarding-screen{position:relative;min-height:100dvh;display:grid;grid-template-rows:auto 1fr auto;padding:calc(14px + var(--safe-top)) clamp(16px,5vw,32px) calc(16px + var(--safe-bottom));overflow:hidden}.onboarding-bubbles{position:absolute;inset:0;pointer-events:none}.onboarding-bubbles span{position:absolute;border-radius:50%;background:radial-gradient(circle at 35% 30%,var(--accent-soft),transparent 68%);animation:drift 13s ease-in-out infinite}.onboarding-bubbles span:nth-child(1){width:46vmax;height:46vmax;top:-14vmax;right:-12vmax}.onboarding-bubbles span:nth-child(2){width:30vmax;height:30vmax;bottom:-8vmax;left:-8vmax;background:radial-gradient(circle at 60% 40%,var(--pink-soft),transparent 70%);animation-delay:-5s}.onboarding-bubbles span:nth-child(3){width:12vmax;height:12vmax;top:34%;left:6%;background:var(--accent-ghost);animation-delay:-8s}.onboarding-bubbles span:nth-child(4){width:7vmax;height:7vmax;bottom:22%;right:9%;background:var(--purple-soft);animation-delay:-3s}.onboarding-top{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:12px;width:min(100%,720px);margin:0 auto}.onboarding-progress{display:flex;align-items:center;gap:5px}.onboarding-progress span{width:18px;height:4px;border-radius:99px;background:var(--line-strong);transition:background .22s,width .22s}.onboarding-progress span.is-on{width:24px;background:var(--accent)}.onboarding-skip{color:var(--ink-3);font-size:.72rem}.onboarding-main{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;min-height:0;padding:12px 0}.onboarding-step{width:min(100%,560px);display:flex;flex-direction:column;align-items:center;text-align:center;animation:step-in .42s var(--ease-spring) both}.onboarding-step>h1{margin-top:5px;font-size:clamp(1.9rem,6vw,2.7rem)}.onboarding-lead{max-width:42ch;margin-top:8px;color:var(--ink-2);font-size:.9rem;line-height:1.55}.welcome-step{gap:4px}.welcome-mark{width:88px;height:88px;margin-bottom:12px;border-radius:29px;animation:bob 4s ease-in-out infinite}.welcome-mark .brand-grid{width:42px;height:42px;gap:4px}.welcome-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin-top:14px}.welcome-credit{margin-top:28px;color:var(--ink-3);font-size:.68rem;font-weight:650}.language-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:min(100%,440px);margin-top:24px}.language-card{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:18px;border-radius:21px;border:1px solid var(--line);background:var(--surface);text-align:left;box-shadow:var(--shadow-soft);transition:border-color .16s,transform .16s var(--ease-spring),background .16s}.language-card:hover{transform:translateY(-2px)}.language-card.is-active{border-color:var(--accent);background:radial-gradient(120px 90px at 100% 0,var(--accent-soft),transparent 70%),var(--surface);box-shadow:0 0 0 3px var(--accent-soft),var(--shadow-soft)}.language-code{font-size:.62rem;font-weight:900;letter-spacing:.1em;color:var(--accent)}.language-name{font-size:1rem;font-weight:850}.language-sample{font-size:.68rem;color:var(--ink-3)}.language-card svg{position:absolute;top:14px;right:14px;color:var(--accent)}.onboarding-footnote{max-width:46ch;margin-top:18px;color:var(--ink-3);font-size:.68rem;line-height:1.45}.tutorial-board{width:min(100%,290px);margin-top:18px;padding:8px;border-radius:27px;background:var(--surface);box-shadow:var(--shadow-card)}.tutorial-board.is-wrong{animation:shake .38s ease}.tutorial-board.is-done{box-shadow:0 0 0 3px var(--success-soft),var(--shadow-card)}.tutorial-hint{display:flex;align-items:center;justify-content:center;gap:5px;margin-top:11px;font-size:.7rem;font-weight:700;color:var(--ink-2)}.tutorial-hint svg{color:var(--accent)}.tutorial-pad{width:min(100%,290px);margin-top:8px}.tutorial-caption{margin-top:7px;font-size:.68rem;color:var(--ink-3)}.marks-demo{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;width:min(100%,240px);margin-top:22px;padding:9px;border-radius:22px;background:var(--board-bg)}.marks-demo>span{display:flex;flex-wrap:wrap;align-content:flex-start;gap:2px;aspect-ratio:1;padding:5px;border-radius:8px;background:var(--board-cell);color:var(--ink-3)}.marks-demo>span.is-focus{background:var(--selected-bg);color:#fff;box-shadow:0 4px 12px var(--accent-soft)}.marks-demo small{width:30%;font-size:.6rem;font-weight:750;line-height:1.2}.mode-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:5px;margin-top:18px}.tool-demo{display:flex;gap:8px;margin-top:24px}.tool-demo-item{display:flex;flex-direction:column;align-items:center;gap:5px;width:78px;padding:13px 8px;border-radius:17px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-soft);color:var(--ink-2)}.tool-demo-item.is-accent{background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 24%,transparent);color:var(--accent);transform:translateY(-4px)}.tool-demo-item small{font-size:.58rem;font-weight:750}.onboarding-callout{display:flex;align-items:flex-start;gap:8px;width:min(100%,410px);margin-top:20px;padding:12px 14px;border-radius:15px;background:var(--warning-soft);color:var(--warning);text-align:left}.onboarding-callout p{color:var(--ink-2);font-size:.74rem}.privacy-points{display:flex;flex-direction:column;gap:8px;width:min(100%,420px);margin-top:22px;text-align:left}.privacy-points span{display:flex;align-items:center;gap:9px;padding:11px 13px;border-radius:13px;background:var(--surface);border:1px solid var(--line);font-size:.74rem;color:var(--ink-2)}.privacy-points svg{flex:none;color:var(--accent)}.sound-choice{width:min(100%,420px);margin-top:18px}.sound-choice>p{margin-bottom:7px;font-size:.72rem;font-weight:750;color:var(--ink-2)}.sound-choice>div{display:grid;grid-template-columns:1fr 1fr;gap:8px}.sound-option{display:flex;align-items:center;justify-content:center;gap:6px;padding:12px;border-radius:14px;border:1px solid var(--line);background:var(--surface);font-size:.74rem;font-weight:750;color:var(--ink-2);transition:border-color .16s,background .16s}.sound-option.is-active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-ink)}.onboarding-footer{position:relative;z-index:1;width:min(100%,720px);margin:0 auto;display:flex;flex-direction:column;gap:6px}.onboarding-footer-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.onboarding-step-label{text-align:center;color:var(--ink-3);font-size:.62rem;font-weight:700}@keyframes step-in{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.game-screen{position:relative;min-height:100dvh;width:min(100%,1180px);margin:0 auto;padding:calc(10px + var(--safe-top)) clamp(10px,2.5vw,26px) 24px;display:flex;flex-direction:column;gap:10px}.game-top{position:relative;z-index:6;display:grid;grid-template-columns:44px minmax(0,1fr) 44px;align-items:center;gap:8px}.status-pill{justify-self:center;display:inline-flex;align-items:center;gap:9px;min-height:38px;max-width:100%;padding:4px 11px;border-radius:999px;border:1px solid var(--line);background:var(--surface-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--shadow-soft);font-size:.76rem;font-weight:750;transition:border-color .16s}.status-pill:hover,.status-pill.is-open{border-color:var(--line-strong)}.status-item{display:inline-flex;align-items:center;gap:4px;white-space:nowrap}.status-item svg{color:var(--ink-3)}.status-time{color:var(--ink);font-variant-numeric:tabular-nums}.status-divider{width:1px;height:15px;background:var(--line)}.status-item.has-mistakes{color:var(--danger)}.status-item.has-mistakes svg{color:var(--danger)}.status-dots{color:var(--ink-3)}.status-panel{position:absolute;z-index:7;top:54px;left:50%;transform:translate(-50%);width:min(calc(100% - 32px),330px);padding:12px 14px;border-radius:17px;background:var(--sheet);border:1px solid var(--line);box-shadow:var(--shadow-float);animation:pop-in .22s var(--ease-spring) both}.status-panel-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:5px 0;font-size:.72rem;color:var(--ink-2)}.status-panel-row strong{color:var(--ink);font-size:.76rem}.status-panel-note{margin-top:5px;padding-top:8px;border-top:1px solid var(--line);font-size:.66rem;color:var(--ink-3)}.game-layout{flex:1;display:grid;grid-template-columns:minmax(0,1fr);gap:12px;align-content:start}.game-board-wrap{width:min(100%,640px);margin:0 auto}.game-subline{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 4px 0;font-size:.62rem;font-weight:700;color:var(--ink-3)}.game-subline-note{white-space:nowrap}.game-controls{display:flex;flex-direction:column;gap:8px;width:min(100%,640px);margin:0 auto}.input-segmented{border-radius:13px}.tool-row{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px}.tool-row.has-check{grid-template-columns:repeat(6,minmax(0,1fr))}.tool-button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:0;min-height:47px;padding:4px 2px;border-radius:11px;color:var(--ink-2);transition:background .14s,color .14s,transform .12s var(--ease-spring)}.tool-button span{font-size:.54rem;font-weight:750;line-height:1.1;white-space:nowrap}.tool-button:hover:not(:disabled){background:var(--surface);color:var(--ink)}.tool-button:active:not(:disabled){transform:scale(.94)}.tool-button:disabled{opacity:.32}.tool-button.is-highlighted{color:var(--warning);background:var(--warning-soft)}.game-note{display:flex;align-items:center;justify-content:center;gap:5px;padding:2px 0;color:var(--ink-3);font-size:.62rem;font-weight:650;text-align:center}.pause-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}.pause-stats>div{display:flex;flex-direction:column;align-items:center;gap:1px;padding:11px 6px;border-radius:13px;background:var(--surface-2)}.pause-stats span{font-size:.6rem;color:var(--ink-3);font-weight:700}.pause-stats strong{font-size:1.1rem;letter-spacing:-.02em}.pause-actions{display:flex;flex-direction:column;gap:9px}.pause-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.pause-grid .btn{width:100%}.pause-actions .pause-note{justify-content:center;text-align:center}.confirm-panel p{color:var(--ink-2);font-size:.88rem;line-height:1.5}.hint-plan-meta{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:9px}.hint-message{display:flex;align-items:flex-start;gap:8px;padding:11px 13px;border-radius:13px;background:var(--accent-ghost);color:var(--ink-2);font-size:.78rem;line-height:1.45}.hint-message svg{flex:none;color:var(--accent)}.hint-message.is-warning{background:var(--danger-soft);color:var(--ink-2)}.hint-message.is-warning svg{color:var(--danger)}.hint-banner{display:flex;align-items:flex-start;gap:8px;width:min(100%,640px);margin:0 auto 10px;padding:10px 10px 10px 13px;border-radius:14px;background:var(--accent-ghost);color:var(--ink-2);font-size:.78rem;line-height:1.45;animation:fade-in .2s ease both}.hint-banner>svg{flex:none;margin-top:1px;color:var(--accent)}.hint-banner>span{flex:1;min-width:0}.hint-banner.is-warning{background:var(--danger-soft)}.hint-banner.is-warning>svg{color:var(--danger)}.hint-banner-close{flex:none;width:26px;height:26px;margin:-3px -1px 0 0;border-radius:50%;color:var(--ink-3)}.hint-banner-close:hover{background:var(--surface);color:var(--ink)}.hint-options{display:flex;flex-direction:column;gap:6px;margin:11px 0}.hint-option{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:13px;border:1px solid var(--line);background:var(--surface);text-align:left;transition:border-color .14s,background .14s}.hint-option:hover{border-color:var(--line-strong);background:var(--surface-2)}.hint-step{display:grid;place-items:center;width:26px;height:26px;flex:none;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-size:.64rem;font-weight:850}.hint-option>span:last-child{display:flex;flex-direction:column;min-width:0}.hint-option strong{font-size:.76rem;font-weight:800}.hint-option small{margin-top:1px;font-size:.64rem;color:var(--ink-3)}.hint-count{margin:6px 0 12px;font-size:.62rem;color:var(--ink-3)}.cell-menu{display:flex;flex-direction:column;gap:13px}.cell-menu-preview{display:grid;place-items:center;min-height:64px;padding:10px;border-radius:15px;background:var(--surface-2)}.cell-menu-value{font-size:2rem;font-weight:850;color:var(--accent)}.cell-menu-empty{font-size:.76rem;color:var(--ink-3);text-align:center}.color-palette{display:flex;justify-content:space-between;gap:5px}.color-swatch{width:27px;height:27px;border-radius:50%;background:var(--cell-color);box-shadow:inset 0 0 0 1px #00000014}.color-swatch.is-selected{box-shadow:0 0 0 2px var(--surface),0 0 0 4px var(--cell-color)}.cell-menu-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px}.win-panel{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding-top:4px}.win-stars{font-size:.76rem;font-weight:750;color:var(--ink-2)}.win-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;width:100%;margin:8px 0 2px}.win-stats>div{display:flex;flex-direction:column;align-items:center;padding:10px 5px;border-radius:12px;background:var(--surface-2)}.win-stats span{font-size:.58rem;color:var(--ink-3);font-weight:700}.win-stats strong{font-size:1rem;letter-spacing:-.02em}.win-actions{display:flex;flex-direction:column;gap:8px;width:100%;margin-top:5px}.win-credit{margin-top:4px;font-size:.62rem;color:var(--ink-3)}.lose-bubbles{display:flex;gap:5px;margin-bottom:4px}.lose-bubbles span{width:13px;height:13px;border-radius:50%;background:var(--danger-soft);border:2px solid var(--danger);opacity:.7}@media(min-width:760px){.achievement-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.pack-card{grid-template-columns:96px minmax(0,1fr) auto;padding:18px 20px}.pack-art{width:96px;height:112px}.pack-title{font-size:1.38rem}}@media(min-width:940px){.game-screen{padding-top:18px;gap:12px}.game-layout{grid-template-columns:minmax(0,1fr) minmax(310px,360px);gap:clamp(24px,4vw,54px);align-items:start;padding-top:6px}.game-board-wrap{max-width:min(620px,calc(100dvh - 168px));width:100%;margin-left:auto;margin-right:auto}.game-controls{width:100%;padding-top:4px}.tool-row{grid-template-columns:repeat(6,minmax(0,1fr));gap:2px}.tool-button{min-height:56px}.tool-button span{font-size:.58rem}.game-note{justify-content:flex-start}[data-handed=left] .game-layout{direction:rtl}[data-handed=left] .game-layout>*{direction:ltr}}@media(min-width:900px){.daily-main{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.04fr);gap:16px;align-items:start}.daily-hero{grid-column:1;grid-row:1}.daily-streak-card{grid-column:1;grid-row:2}.daily-learn-link{grid-column:1;grid-row:3}.daily-calendar{grid-column:2;grid-row:1 / span 3}.packs-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;align-items:stretch}.packs-list .pack-card{height:100%}.learn-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:start}.learn-summary{grid-column:1 / -1}.stats-main{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:14px;align-items:start}.stat-tiles{grid-column:1 / -1;grid-row:1;grid-template-columns:repeat(6,minmax(0,1fr))}.stats-chart-card{grid-column:1;grid-row:2 / span 2;align-self:stretch;display:flex;flex-direction:column}.stats-chart-card .game-chart{flex:1;height:auto;min-height:200px}.stats-tier-difficulty{grid-column:2;grid-row:2}.stats-tier-variant{grid-column:2;grid-row:3}.achievement-card{grid-column:1 / -1;grid-row:4}.achievement-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.recent-card{grid-column:1;grid-row:5}.streak-card{grid-column:2;grid-row:5}.settings-main{display:block;columns:2;column-gap:14px}.settings-main .settings-card{break-inside:avoid;margin-bottom:14px}.about-main{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:12px;align-items:start}.author-card,.about-credit-block,.about-actions{grid-column:1 / -1}.import-main{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:14px;align-items:start}.import-main>.import-card{grid-column:1;grid-row:1}.import-side{grid-column:2;grid-row:1}.lesson-main{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:16px 18px;align-items:start}.lesson-hero{grid-column:1 / -1}.lesson-hero>div{min-width:0}.lesson-hero p:not(.screen-eyebrow){max-width:64ch}.lesson-body{grid-column:1;grid-row:2}.lesson-aside{grid-column:2;grid-row:2;gap:14px}.lesson-nav{grid-column:1 / -1;grid-row:3}.lesson-practice{flex-direction:column;align-items:stretch;gap:14px}.lesson-actions{justify-content:flex-start}}@media(min-width:1080px){.packs-list{grid-template-columns:repeat(3,minmax(0,1fr))}.packs-list .pack-card{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr) auto;align-items:start;gap:12px}.packs-list .pack-art{width:100%;height:104px}.packs-list .pack-action{justify-self:end}.achievement-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:600px){.home-mark{width:46px;height:46px;border-radius:15px}.brand-grid{width:23px;height:23px}.play-card-icon{width:46px;height:46px}.tier-picker{grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}.tier-card{padding:8px 9px}.tier-name{font-size:.72rem}.mode-section{padding:13px;border-radius:22px}.daily-strip{gap:5px}.daily-strip-item{flex-direction:column;align-items:flex-start;gap:4px;padding:9px}.screen-header{flex-wrap:wrap;gap:10px}.screen-header h1{font-size:1.8rem}.packs-stars{padding:6px 10px}.pack-card{grid-template-columns:64px minmax(0,1fr);gap:12px;padding:13px;border-radius:20px}.pack-art{width:64px;height:82px;border-radius:16px}.pack-art-grid{width:36px;height:36px}.pack-action{display:none}.pack-description{-webkit-line-clamp:2}.pack-title{font-size:1.05rem}.pack-detail-header{gap:9px}.pack-detail-header .progress-ring{display:none}.pack-puzzle-row{grid-template-columns:38px minmax(0,1fr) auto;gap:9px;padding:11px}.puzzle-number{width:38px;height:38px;border-radius:11px}.puzzle-chevron{display:none}.learn-card{gap:10px;padding:12px}.learn-icon{width:40px;height:40px;border-radius:13px}.learn-copy small{-webkit-line-clamp:2}.lesson-hero{flex-direction:column;padding:17px}.lesson-hero-icon{width:52px;height:52px;border-radius:17px}.lesson-practice{flex-direction:column;align-items:stretch;padding:17px}.lesson-practice .btn{width:100%}.lesson-nav{grid-template-columns:1fr}.stat-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.achievement-grid{grid-template-columns:1fr}.tier-stat-row{grid-template-columns:78px minmax(0,1fr)}.tier-stat-value{grid-column:2;justify-self:end;margin-top:-6px}.streak-card{gap:14px;flex-wrap:wrap}.settings-card{padding:15px;border-radius:20px}.setting-row{flex-wrap:wrap}.setting-control{max-width:100%}.accent-swatches{gap:8px}.author-card{flex-direction:column}.onboarding-step>h1{font-size:1.85rem}.onboarding-lead{font-size:.84rem}.tool-demo-item{width:62px;padding:11px 5px}.game-screen{padding-left:9px;padding-right:9px}.tool-button span{font-size:.5rem}}@media(max-width:380px){.tier-picker{grid-template-columns:repeat(2,minmax(0,1fr))}.daily-strip{grid-template-columns:1fr}.daily-strip-item{flex-direction:row;align-items:center}.segmented-item{font-size:.7rem}.mode-option svg{display:none}}