:root{color-scheme:dark;--bg: #121213;--panel: #1b1b1d;--panel-2: #222326;--text: #f8f8f8;--muted: #a0a4ab;--border: #3a3a3c;--tile: #121213;--tile-border: #565758;--green: #6aaa64;--yellow: #c9b458;--grey: #3a3a3c;--button-text: #ffffff;--shadow: rgba(0,0,0,.28);--row-gap: 6px;--tile-size: min(4.6vw, 54px);--tile-gap: 6px;--board-content-width: calc((5 * var(--tile-size)) + (4 * var(--tile-gap)) + 24px);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;background:var(--bg);color:var(--text);overflow:hidden}button{font:inherit}.app-shell{width:100%;max-width:100%;height:100vh;margin:0 auto;padding:16px;display:grid;grid-template-columns:160px minmax(0,1fr) 280px;gap:18px;align-items:stretch;overflow:hidden}.sidebar,.board-panel,.presence-panel,.modal-card,.boot-card{background:var(--panel);border:1px solid var(--border);border-radius:18px;box-shadow:0 12px 30px var(--shadow)}.left-rail{min-height:0;overflow:visible}.left-rail-panel{height:100%;overflow-y:auto;overflow-x:visible;padding:12px}.sidebar{padding:18px;display:flex;flex-direction:column;gap:14px;min-height:0;overflow-y:auto;overflow-x:hidden}.board-panel,.presence-panel{padding:18px}.sidebar-actions{display:flex;justify-content:flex-start;align-items:center;gap:12px;flex-wrap:wrap}.board-stage{display:grid;place-items:center;min-width:0;min-height:0}.board-stage-inner{width:max-content;max-width:none;display:grid;align-content:start;justify-items:center;overflow:visible;will-change:transform}.board-scale-wrap{width:100%;display:grid;justify-items:center;overflow:visible}.board-hint-area{width:var(--board-content-width);max-width:100%;margin-top:10px}h1{margin:0;font-size:2rem;letter-spacing:.08em;font-weight:800}h2,h3{margin:0 0 8px}.meta{color:var(--muted);font-size:.95rem}.tag{color:var(--muted);line-height:1.4;font-size:.95rem}.presence-debug{color:var(--muted);font-size:.75rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;line-height:1.35}.legend{display:grid;gap:8px;font-size:.92rem;color:var(--muted)}.legend-row{display:flex;gap:10px;align-items:flex-start}.legend-row span:last-child{flex:1}.legend-tile{width:20px;height:20px;border-radius:4px;border:2px solid rgba(255,255,255,.08);flex:0 0 auto;margin-top:2px}.title-bar{display:flex;align-items:center;justify-content:space-between;position:relative;width:var(--board-content-width);max-width:100%}.title-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.title-line-left{justify-content:flex-start}.day-number{color:var(--text);font-size:1.32rem;letter-spacing:.04em;font-style:normal;font-weight:400;opacity:.9}.board-title-bar{margin-bottom:10px}.board-wrap{width:100%;height:100%;max-width:100%;position:relative;overflow:hidden}.board-swaps-card{display:inline-flex;flex-direction:column;justify-content:center;align-items:center;min-width:96px;background:var(--panel-2);border:1px solid var(--border);border-radius:12px;padding:8px 10px;box-shadow:inset 0 0 0 1px transparent}.board-swaps-inline{min-width:auto;padding:6px 10px}.board-swaps-card.good{background:color-mix(in srgb,var(--green) 16%,var(--panel-2));border-color:color-mix(in srgb,var(--green) 55%,var(--border));box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--green) 25%,transparent)}.board-swaps-card.mid{background:color-mix(in srgb,var(--yellow) 16%,var(--panel-2));border-color:color-mix(in srgb,var(--yellow) 55%,var(--border));box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--yellow) 25%,transparent)}.board-swaps-card.bad{background:color-mix(in srgb,#e05d5d 16%,var(--panel-2));border-color:color-mix(in srgb,#e05d5d 55%,var(--border));box-shadow:inset 0 0 0 1px color-mix(in srgb,#e05d5d 25%,transparent)}.swap-icon{font-size:1.05em;line-height:1;opacity:.95;display:block}.board-swaps-value{font-size:1.25rem;font-weight:900;line-height:1;display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:1.5rem}.presence-panel-inline{padding:0;background:transparent;border:0;box-shadow:none}.panel-right{width:280px;max-height:100%}.secondary-btn{border-radius:12px;padding:10px 14px;font-weight:800;border:2px solid var(--border);background:var(--panel-2);color:var(--text);cursor:pointer}.status-banner{border-radius:14px;padding:12px 14px;font-weight:600;background:#ffffff0f;text-align:center}.status-banner.success{background:#3ba55c2e;color:#b6f2c8}.board-grid,.rows{display:grid;gap:var(--row-gap);justify-content:start;width:var(--board-content-width);max-width:100%;position:relative}.row{background:var(--panel-2);border:1px solid var(--border);border-radius:16px;padding:9px 10px;display:inline-grid;width:fit-content;max-width:100%}.row.solved{border-color:#6aaa646b;background:color-mix(in srgb,var(--green) 14%,var(--panel));box-shadow:inset 0 0 0 1px #6aaa6429}.tiles{display:grid;grid-template-columns:repeat(5,var(--tile-size));gap:var(--tile-gap)}.tile{width:var(--tile-size);height:var(--tile-size);border-radius:8px;border:2px solid var(--tile-border);background:var(--tile);color:var(--text);display:grid;place-items:center;font-size:clamp(1rem,1.8vw,1.65rem);font-weight:800;text-transform:uppercase;user-select:none;touch-action:none;position:relative;transition:transform .12s ease,box-shadow .12s ease,opacity .12s ease;-webkit-user-select:none;aspect-ratio:1 / 1}.tile-letter{pointer-events:none}.tile.green{background:var(--green);border-color:var(--green);color:#fff}.tile.yellow{background:var(--yellow);border-color:var(--yellow);color:#fff}.tile.grey{background:var(--grey);border-color:var(--grey);color:#fff}.tile.selected{box-shadow:0 0 0 3px #ffffff2e;transform:scale(1.04);z-index:2}.tile.drag-source{opacity:.28;transform:scale(.98)}.tile.drop-target{box-shadow:0 0 0 3px #ffffff3d,0 0 20px #ffffff1f;transform:scale(1.06);z-index:2}.tile.solved{box-shadow:inset 0 0 0 2px #ffffff1f}.tile.green.solved{box-shadow:none}.drag-ghost{position:fixed;width:var(--tile-size);height:var(--tile-size);border-radius:8px;border:2px solid rgba(255,255,255,.22);color:#fff;display:grid;place-items:center;font-size:clamp(1rem,1.8vw,1.65rem);font-weight:800;text-transform:uppercase;pointer-events:none;z-index:9999;transform:translate(-50%,-50%) scale(1.08);box-shadow:0 16px 30px #00000059}.drag-ghost.green{background:var(--green);border-color:var(--green)}.drag-ghost.yellow{background:var(--yellow);border-color:var(--yellow)}.drag-ghost.grey{background:var(--grey);border-color:var(--grey)}.presence-list{display:grid;gap:10px;margin-bottom:0}.presence-item{padding:8px;border-radius:14px;background:#ffffff0a;min-width:0;position:relative}.presence-main{display:grid;justify-items:center;gap:8px}.presence-topline{display:flex;align-items:center;gap:8px}.presence-avatar{width:34px;height:34px;border-radius:999px;object-fit:cover;flex:0 0 auto}.presence-avatar-placeholder{display:grid;place-items:center;background:var(--panel-2);border:1px solid var(--border);color:var(--text);font-size:.9rem;font-weight:800}.presence-swap-inline{font-size:.78rem;font-weight:800;color:var(--text);background:var(--panel-2);border:1px solid var(--border);border-radius:999px;padding:4px 7px;white-space:nowrap}.presence-tooltip-overlay{position:fixed;transform:translateY(-50%);background:#111112fa;color:#fff;padding:8px 10px;border-radius:10px;border:1px solid rgba(255,255,255,.08);box-shadow:0 12px 30px #00000059;white-space:nowrap;pointer-events:none;z-index:99999;font-size:.86rem;font-weight:700}.presence-mini-grid{display:grid;gap:3px}.presence-mini-row{display:grid;grid-template-columns:repeat(5,13px);gap:3px}.presence-mini-tile{width:13px;height:13px;border-radius:3px;background:var(--grey);position:relative;display:inline-grid;place-items:center}.presence-mini-tile.green{background:var(--green)}.presence-mini-tile.yellow{background:var(--yellow)}.presence-mini-tile.grey{background:var(--grey)}.presence-mini-overlay{color:#fffffffa;font-size:7px;line-height:1;font-weight:900;letter-spacing:-.2px;transform:translateY(-.1px);pointer-events:none}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#0009}.modal-card{width:min(560px,calc(100vw - 32px));padding:24px}.rules-hidden{display:none}.boot-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.boot-card{width:min(720px,100%);padding:24px}.boot-log,.boot-inline{display:grid;gap:8px;margin-top:12px}.boot-line,.boot-inline-line{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9rem;color:var(--muted);word-break:break-word}.boot-inline{margin-top:18px}@media (max-width: 1200px){.app-shell{grid-template-columns:150px minmax(0,1fr) 260px;gap:14px}.panel-right{width:260px}:root{--tile-size: min(5.2vw, 52px)}}@media (max-width: 920px){body{overflow:auto}.app-shell{height:auto;width:100%;max-width:100%;padding:18px 12px 12px;grid-template-columns:minmax(0,1fr);grid-template-areas:"left" "board" "right";overflow:visible;align-items:start}.left-rail{grid-area:left;width:100%;min-width:0}.board-stage{grid-area:board;width:100%;min-width:0}.sidebar{grid-area:right;width:100%}.board-stage-inner,.board-wrap,.board-scale-wrap,.board-grid,.rows,.title-bar,.board-hint-area{width:100%;max-width:100%}.board-stage-inner{transform:none!important;justify-items:stretch}.left-rail-panel,.panel-right{height:auto;max-height:none;overflow:visible}.left-rail-panel{padding:0;background:transparent;border:0;box-shadow:none;width:100%}.presence-list{display:flex;width:100%;gap:10px;overflow-x:auto;overflow-y:hidden;padding:2px 2px 6px;scroll-snap-type:x proximity}.presence-item{min-width:148px;flex:0 0 auto;scroll-snap-align:start}.presence-main{grid-template-columns:auto 1fr;justify-items:stretch;align-items:center;gap:10px}.presence-topline{display:grid;justify-items:center;gap:8px;align-content:center}.presence-mini-grid{align-self:center}:root{--tile-size: min( calc((100vw - 72px)/5) , 58px);--board-content-width: 100%}}@media (max-width: 560px){.app-shell{padding:20px 10px 12px;gap:12px}:root{--tile-size: min( calc((100vw - 56px)/5) , 54px);--board-content-width: 100%}.sidebar,.board-panel,.presence-panel{width:100%;border-radius:16px}h1{font-size:1.8rem;text-align:left}.rows{display:flex;flex-direction:column;width:100%;align-items:stretch}.row{display:block;width:100%;max-width:none;padding:6px 8px;border-radius:14px}.tiles{display:grid;justify-content:stretch;grid-template-columns:repeat(5,minmax(0,1fr));width:100%}.tile{width:100%;height:auto;aspect-ratio:1 / 1;min-height:0;border-radius:7px}.title-bar,.board-hint-area{width:100%}}