@import"https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700;800;900&display=swap";:root{color-scheme:light;--step--2: clamp(.7378rem, .8051rem + -.0747vw, .7901rem);--step--1: clamp(.8854rem, .8899rem + -.005vw, .8889rem);--step-0: clamp(1rem, .9821rem + .0893vw, 1.0625rem);--step-1: clamp(1.125rem, 1.0821rem + .2143vw, 1.275rem);--step-2: clamp(1.2656rem, 1.1901rem + .3777vw, 1.53rem);--space-3xs: clamp(.25rem, .2455rem + .0223vw, .2656rem);--space-2xs: clamp(.5rem, .4911rem + .0446vw, .5313rem);--space-xs: clamp(.75rem, .7366rem + .067vw, .7969rem);--space-s: clamp(1rem, .9821rem + .0893vw, 1.0625rem);--space-m: clamp(1.5rem, 1.4732rem + .1339vw, 1.5938rem);--space-l: clamp(2rem, 1.9643rem + .1786vw, 2.125rem);--space-xl: clamp(3rem, 2.9464rem + .2679vw, 3.1875rem);--space-2xl: clamp(4rem, 3.9286rem + .3571vw, 4.25rem);--space-3xs-2xs: clamp(.25rem, .1696rem + .4018vw, .5313rem);--space-2xs-xs: clamp(.5rem, .4152rem + .4241vw, .7969rem);--space-xs-s: clamp(.75rem, .6607rem + .4464vw, 1.0625rem);--space-s-m: clamp(1rem, .8304rem + .8482vw, 1.5938rem);--space-m-l: clamp(1.5rem, 1.3214rem + .8929vw, 2.125rem);--space-l-xl: clamp(2rem, 1.6607rem + 1.6964vw, 3.1875rem);--space-s-l: clamp(1rem, .6786rem + 1.6071vw, 2.125rem);--space-xs-m: clamp(.75rem, .5089rem + 1.2054vw, 1.5938rem);--grid-max-width: 110rem;--grid-gutter: var(--space-2xs-xs);--grid-columns: 12;--ink: #17201d;--muted: #5f6a65;--canvas: #d7ddd8;--surface: #eef1eb;--paper: #f7f7f0;--rail: #cbd2cc;--rail-strong: #99a49e;--line: #b7c0ba;--line-strong: #727d77;--accent: #277955;--accent-strong: #155b3b;--accent-soft: #dcebe0;--info: #3f6f7c;--emphasis: #c4aa45;--danger: #b85a3d;--success: #277955;--focus-ring: rgb(39 121 85 / 34%);--shadow: 0 14px 44px rgb(23 32 29 / 14%);--road: var(--rail);--road-dark: var(--rail-strong);--accent-dark: var(--accent-strong);--warning: var(--danger);--green: var(--success);--blue: var(--info);--yellow: var(--emphasis);--scroll-thumb: #718078;--scroll-thumb-hover: #49645a;--text-caption: var(--step--2);--text-label: var(--step--1);--text-body: var(--step-0);--text-title: var(--step-1);--text-count: var(--step-2);--gap-shell: var(--space-2xs);--gap-control: var(--space-3xs-2xs);--pad-shell-block: var(--space-2xs);--pad-control-inline: var(--space-xs);--pad-cell: var(--space-2xs);--size-control: clamp(2rem, 1.9643rem + .1786vw, 2.125rem);--size-header-row: clamp(2.375rem, 2.3393rem + .1786vw, 2.5rem);--size-table-cell: clamp(4.875rem, 4.7679rem + .5357vw, 5.25rem);--size-tile: clamp(3.375rem, 3.2679rem + .5357vw, 3.75rem);--radius: 8px;font-family:Geist,Geist Sans,PingFang SC,Microsoft YaHei,Segoe UI,sans-serif}*{box-sizing:border-box;scrollbar-width:none}*::-webkit-scrollbar{display:none}html{min-width:320px;height:100%;background:var(--canvas)}body{font-size:var(--text-body);min-height:100dvh;margin:0;overflow:hidden;color:var(--ink);background:linear-gradient(90deg,rgb(23 32 29 / 8%) 1px,transparent 1px),linear-gradient(180deg,rgb(23 32 29 / 6%) 1px,transparent 1px),linear-gradient(90deg,transparent 0 48%,rgb(196 170 69 / 10%) 48% 52%,transparent 52%),var(--canvas);background-size:var(--space-l) var(--space-l),var(--space-l) var(--space-l),10rem 10rem,auto}button{font:inherit}.site-shell{display:flex;width:min(var(--grid-max-width),calc(100% - (var(--grid-gutter) * 2)));height:100dvh;min-height:0;flex-direction:column;gap:var(--gap-shell);margin:0 auto;padding:var(--pad-shell-block) 0}.app-hero{display:flex;flex:0 0 auto;align-items:center;justify-content:space-between;gap:var(--space-s);min-height:var(--size-control)}.hero-copy{min-width:0}.board-kicker{margin:0;color:var(--accent-dark);font-size:var(--text-caption);font-weight:900;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}h1{margin:0;overflow:hidden;color:var(--ink);font-size:var(--text-title);font-weight:850;letter-spacing:0;line-height:1.05;text-overflow:ellipsis;white-space:nowrap}.hero-actions{display:flex;min-width:0;flex:0 0 auto;align-items:center;justify-content:flex-end;gap:var(--gap-control)}.hero-stats{display:flex;flex:0 0 auto;flex-wrap:wrap;justify-content:flex-end;gap:var(--space-3xs-2xs)}.hero-stats span{display:inline-flex;align-items:baseline;gap:var(--space-3xs);min-height:calc(var(--size-control) - var(--space-3xs-2xs));padding:var(--space-3xs) var(--space-2xs);border:1px solid var(--line);border-radius:var(--radius);background:#f4f6f1b8;color:var(--muted);font-size:var(--text-caption)}.hero-stats strong{color:var(--ink);font-size:var(--text-body)}.github-link{display:inline-flex;width:var(--size-control);min-width:var(--size-control);height:var(--size-control);align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius);background:#f4f6f1b8;color:var(--ink);transition:transform .16s ease,border-color .16s ease,background .16s ease}.language-switcher{display:inline-grid;min-height:var(--size-control);grid-template-columns:1fr 1fr;padding:2px;border:1px solid var(--line);border-radius:var(--radius);background:#f4f6f1b8}.language-option{min-width:clamp(2.75rem,2.6786rem + .3571vw,3rem);min-height:calc(var(--size-control) - var(--space-3xs-2xs));padding:0 var(--space-2xs);border:0;border-radius:calc(var(--radius) - 2px);background:transparent;color:var(--muted);cursor:pointer;font-size:var(--text-caption);font-weight:900;letter-spacing:0;line-height:1;transition:background .16s ease,color .16s ease,transform .16s ease}.language-option:hover{color:var(--ink)}.language-option[data-active=true]{background:var(--accent-dark);color:var(--paper);box-shadow:0 6px 12px #17201d1f}.language-option:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px}.github-link:hover{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-1px)}.github-link:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px}.github-icon{width:18px;height:18px;fill:currentColor}.puzzle-board{display:flex;min-height:0;flex:1 1 auto;flex-direction:column;overflow:hidden;border:1px solid var(--line-strong);border-radius:var(--radius);background:linear-gradient(135deg,rgb(63 111 124 / 12%),transparent 32%),linear-gradient(180deg,#f7f7f0f5,#eef1ebf0);box-shadow:var(--shadow)}.board-toolbar{display:flex;flex:0 0 auto;align-items:center;justify-content:space-between;gap:var(--space-xs);min-height:clamp(2.75rem,2.6786rem + .3571vw,3rem);padding:var(--space-3xs-2xs) var(--space-2xs);border-bottom:1px solid var(--line)}.progress-copy{display:flex;align-items:baseline;gap:var(--space-3xs);margin:0;color:var(--muted);font-size:var(--text-label)}.progress-copy strong{color:var(--ink);font-size:var(--text-count);line-height:1}.toolbar-actions{display:flex;align-items:center;gap:var(--gap-control)}.quiet-button,.solid-button,.selected-strip button,.mobile-table-bar button,.mobile-view-toggle{min-height:var(--size-control);padding:0 var(--pad-control-inline);border-radius:var(--radius);cursor:pointer;transition:transform .16s ease,border-color .16s ease,background .16s ease}.icon-button{display:inline-flex;min-width:var(--size-control);width:var(--size-control);align-items:center;justify-content:center;padding:0}.back-button{min-width:var(--size-control);width:var(--size-control);padding:0}.button-icon{width:17px;height:17px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.9}.quiet-button,.selected-strip button,.mobile-table-bar button,.mobile-view-toggle{border:1px solid var(--line);background:transparent;color:var(--ink)}.solid-button{border:1px solid var(--accent-dark);background:linear-gradient(135deg,rgb(216 184 50 / 22%),transparent 38%),var(--accent-dark);color:var(--paper)}.quiet-button:hover,.solid-button:hover,.selected-strip button:hover,.mobile-table-bar button:hover,.mobile-view-toggle:hover{transform:translateY(-1px)}.quiet-button:focus-visible,.solid-button:focus-visible,.selected-strip button:focus-visible,.mobile-table-bar button:focus-visible,.mobile-view-toggle:focus-visible,.answer-tile:focus-visible,.cell-slot:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px}.play-surface{display:grid;min-height:0;flex:1 1 auto;grid-template-columns:minmax(0,1fr) minmax(clamp(18rem,16.8571rem + 5.7143vw,22rem),clamp(20rem,18.8571rem + 5.7143vw,24rem))}.selected-strip,.selected-strip[hidden],.mobile-table-bar,.mobile-view-toggle{display:none}.table-zone{display:flex;min-width:0;min-height:0;flex-direction:column;border-right:1px solid var(--line)}.table-scroll{flex:1 1 auto;min-height:0;overflow:auto}.runtime-table{border-collapse:collapse;table-layout:fixed;width:max-content}.runtime-table th,.runtime-table td{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.runtime-table tbody tr:nth-child(odd){--row-bg: rgb(239 242 237 / 78%);--row-filled-bg: rgb(220 235 224 / 62%)}.runtime-table tbody tr:nth-child(2n){--row-bg: rgb(232 237 233 / 78%);--row-filled-bg: rgb(213 229 219 / 62%)}.runtime-table thead th{position:sticky;top:0;z-index:3;height:var(--size-header-row);padding:0 calc(var(--space-xs) + 10px) 0 var(--space-2xs);overflow:hidden;background:#e6eae4f7;color:var(--ink);font-size:var(--text-caption);font-weight:900;letter-spacing:.05em;text-align:left;text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap}.column-header-label{display:block;overflow:hidden;text-overflow:ellipsis}.column-resize-handle{position:absolute;top:0;right:-5px;z-index:8;display:flex;width:12px;height:100%;align-items:center;justify-content:center;cursor:col-resize;touch-action:none}.column-resize-handle:after{display:block;width:2px;height:min(58%,22px);border-radius:999px;background:#5f6a6557;content:"";transition:background .15s ease,transform .15s ease}.column-resize-handle:hover:after,.column-resize-handle:focus-visible:after,.column-resize-handle[data-resizing=true]:after{background:var(--accent);transform:scaleY(1.18)}.column-resize-handle:focus-visible{outline:3px solid var(--focus-ring);outline-offset:-3px}.puzzle-cell{position:relative;height:var(--size-table-cell);padding:0;background:var(--row-bg, rgb(244 246 241 / 58%));transition:background .14s ease,box-shadow .14s ease}.puzzle-cell[data-over=true]{background:#27795521;box-shadow:inset 0 0 0 2px var(--accent)}.puzzle-cell[data-rejected=true]{background:#b85a3d1f;box-shadow:inset 0 0 0 2px var(--warning)}.puzzle-cell[data-filled=true]{background:var(--row-filled-bg, rgb(39 121 85 / 9%))}.puzzle-cell:has(.remove-tile-button){box-shadow:inset 0 0 0 2px var(--accent)}.runtime-table thead th:first-child{left:0;z-index:5;box-shadow:1px 0 0 var(--line)}.runtime-table tbody .puzzle-cell:first-child{position:sticky;left:0;z-index:2;box-shadow:1px 0 0 var(--line)}.cell-slot{display:flex;width:100%;height:var(--size-table-cell);align-items:center;justify-content:center;border:0;background:transparent;color:inherit;cursor:pointer;text-align:left}.cell-slot:disabled{cursor:default}.remove-tile-button{position:absolute;top:var(--space-3xs-2xs);right:var(--space-3xs-2xs);z-index:6;min-height:clamp(1.4375rem,1.4196rem + .0893vw,1.5rem);padding:0 var(--space-2xs);border:1px solid rgb(23 32 29 / 20%);border-radius:999px;background:#f4f6f1f0;color:var(--warning);cursor:pointer;font-size:var(--text-caption);font-weight:850;line-height:1;box-shadow:0 8px 22px #17201d29;transition:transform .16s ease,border-color .16s ease,background .16s ease}.remove-tile-button:hover{border-color:var(--warning);background:#fff3ef;transform:translateY(-1px)}.blank-lines{display:grid;width:min(76%,156px);gap:var(--space-3xs-2xs);opacity:.92}.blank-lines span{display:block;height:var(--space-2xs);border-radius:999px;background:linear-gradient(90deg,#737f7857,#737f783b);box-shadow:inset 0 1px #f4f6f16b}.blank-lines span:last-child{width:62%;opacity:.82}.filled-value{display:block;width:100%;max-height:var(--size-table-cell);overflow:auto;padding:var(--pad-cell);color:var(--ink);font-size:var(--text-caption);font-weight:650;line-height:1.34;overflow-wrap:anywhere}.status-line{display:flex;min-height:var(--size-control);flex:0 0 auto;align-items:center;padding:var(--space-3xs-2xs) var(--space-2xs);border-top:1px solid var(--line);color:var(--muted);font-size:var(--text-caption);font-weight:750}.warning-message{color:var(--warning)}.complete-message{color:var(--green)}.tile-tray{display:flex;min-width:0;min-height:0;flex-direction:column;background:linear-gradient(180deg,rgb(23 32 29 / 5%),transparent 90px),#dbe1dcc7}.tray-header{display:flex;flex:0 0 auto;align-items:center;justify-content:space-between;gap:var(--space-2xs);min-height:var(--size-header-row);padding:0 var(--space-2xs);border-bottom:1px solid var(--line)}.tray-header h2{margin:0;font-size:var(--text-caption);font-weight:900;letter-spacing:.08em;text-transform:uppercase}.tray-actions{display:flex;align-items:center;gap:var(--gap-control)}.tile-grid{display:grid;min-height:0;grid-template-columns:1fr;gap:var(--space-3xs-2xs);overflow:auto;padding:var(--space-2xs);overscroll-behavior:contain;scroll-padding-block:var(--space-2xs);scroll-snap-type:y mandatory}.answer-tile{display:flex;width:100%;min-height:var(--size-tile);max-height:clamp(4.75rem,4.3929rem + 1.7857vw,6rem);align-items:flex-start;padding:var(--space-2xs);border:1px solid rgb(23 32 29 / 20%);border-radius:var(--radius);background:var(--paper);color:var(--ink);cursor:grab;overflow:hidden;text-align:left;touch-action:pan-y;scroll-margin-block:var(--space-2xs);scroll-snap-align:start;user-select:none;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;box-shadow:0 6px 14px #17201d14;transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease,background .16s ease}.answer-tile:hover,.answer-tile[data-selected=true]{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 10px 22px #17201d1f;transform:translateY(-1px)}.answer-tile:active{cursor:grabbing}.answer-tile[data-dragging=true]{opacity:.28}.overlay-tile{width:100%;height:100%;max-height:none;cursor:grabbing;touch-action:none;box-shadow:0 22px 60px #17201d3d}.tile-value{display:-webkit-box;max-width:100%;overflow:hidden;color:var(--ink);font-size:var(--text-label);font-weight:700;line-height:1.36;text-overflow:ellipsis;word-break:break-word;overflow-wrap:anywhere;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2}.overlay-tile .tile-value{-webkit-line-clamp:4;line-clamp:4}@media(max-width:1050px){.play-surface{grid-template-columns:1fr}.table-zone{border-right:0;border-bottom:1px solid var(--line)}.tile-tray{order:-1;max-height:clamp(14.5rem,13.7857rem + 3.5714vw,17rem);border-bottom:1px solid var(--line)}.tile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:700px){:root{--text-title: var(--step-0);--size-control: 2rem;--size-header-row: 2.375rem;--size-table-cell: 4.875rem;--size-tile: 3.375rem}body{overflow:hidden}.site-shell{width:min(100% - (var(--space-3xs-2xs) * 2),42.5rem);gap:var(--space-3xs-2xs);padding:var(--space-3xs-2xs) 0}.app-hero{min-height:1.5rem}.hero-stats{display:none}.language-switcher{min-height:var(--size-control)}.language-option{min-width:42px;min-height:26px;padding:0 var(--space-3xs-2xs)}.board-toolbar{min-height:42px;padding:var(--space-3xs) var(--space-3xs-2xs)}.board-kicker{display:none}.progress-copy{font-size:var(--text-caption)}.progress-copy strong{font-size:var(--text-title)}.quiet-button,.solid-button,.selected-strip button,.mobile-table-bar button,.mobile-view-toggle{min-height:var(--size-control);padding:0 10px;font-size:var(--text-label)}.play-surface{display:flex;flex-direction:column}.selected-strip:not([hidden]){display:none}.play-surface[data-placement-mode=placing] .selected-strip:not([hidden]){display:flex;flex:0 0 auto;align-items:center;gap:var(--space-2xs);min-height:44px;padding:var(--space-3xs-2xs);border-bottom:1px solid var(--line);background:#dcecdfe5}.selected-strip span{color:var(--accent-dark);font-size:var(--text-caption);font-weight:900;letter-spacing:.08em;text-transform:uppercase}.selected-strip strong{min-width:0;flex:1;overflow:hidden;color:var(--ink);font-size:var(--text-caption);line-height:1.25;text-overflow:ellipsis;white-space:nowrap}.mobile-table-bar:not([hidden]){display:block;flex:0 0 auto;min-height:0;padding:0;border:0;background:transparent}.mobile-table-bar span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.mobile-view-toggle{display:inline-flex}.mobile-view-toggle,.mobile-table-bar .back-button{position:fixed;top:50%;right:-20px;z-index:40;width:52px;min-width:52px;min-height:50px;align-items:center;justify-content:center;padding:0 19px 0 7px;border:1px solid rgb(23 32 29 / 20%);border-right:0;border-radius:999px 0 0 999px;background:#f4f6f1eb;color:var(--accent-dark);font-size:var(--text-caption);font-weight:850;box-shadow:0 12px 30px #17201d2e;transform:translateY(-50%);backdrop-filter:blur(8px)}.icon-button,.mobile-view-toggle.icon-button{min-width:var(--size-control);width:var(--size-control);padding:0}.back-button,.mobile-view-toggle.icon-button{min-width:52px;width:52px;padding:0 19px 0 7px}.mobile-view-toggle:hover,.mobile-table-bar .back-button:hover{transform:translateY(-50%) translate(-4px)}.button-icon{width:16px;height:16px}.play-surface[data-mobile-view=tiles] .table-zone,.play-surface[data-mobile-view=table] .tile-tray{display:none}.play-surface[data-mobile-view=table] .table-zone,.play-surface[data-mobile-view=tiles] .tile-tray{display:flex}.table-zone,.tile-tray{flex:1 1 auto;min-height:0;max-height:none;border-right:0}.runtime-table thead th{height:var(--size-header-row)}.puzzle-cell,.cell-slot{height:var(--size-table-cell)}.filled-value{max-height:var(--size-table-cell)}.remove-tile-button{top:5px;right:5px;min-height:23px;padding:0 7px}.status-line{min-height:var(--size-control)}.tray-header{min-height:var(--size-header-row);padding:0 var(--space-2xs)}.tile-grid{grid-template-columns:1fr;gap:var(--space-3xs-2xs);padding:var(--space-2xs)}.answer-tile{min-height:var(--size-tile);max-height:4.75rem;padding:var(--space-2xs)}.tile-value{line-height:1.28;-webkit-line-clamp:2;line-clamp:2}.overlay-tile .tile-value{-webkit-line-clamp:4;line-clamp:4}}