:root{--gj-bg: #0f1420;--gj-surface: #1a2130;--gj-surface-2: #232c3d;--gj-text: #eef2f9;--gj-text-dim: #9aa6bd;--gj-accent: #4d8dff;--gj-accent-ink: #ffffff;--gj-border: #2c3648;--gj-radius: 14px;--gj-gap: 12px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--gj-bg);color:var(--gj-text);font-family:system-ui,-apple-system,Apple SD Gothic Neo,Malgun Gothic,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior:none}.gj-shell{display:flex;flex-direction:column;height:100dvh;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}.gj-shell__header,.gj-shell__footer{flex:0 0 auto;padding:var(--gj-gap)}.gj-shell__body{flex:1 1 auto;min-height:0;position:relative}.gj-btn{-webkit-appearance:none;appearance:none;border:1px solid var(--gj-border);background:var(--gj-surface-2);color:var(--gj-text);border-radius:var(--gj-radius);padding:12px 18px;font-size:15px;font-weight:600;cursor:pointer;touch-action:manipulation}.gj-btn--primary{background:var(--gj-accent);border-color:var(--gj-accent);color:var(--gj-accent-ink)}.gj-btn:disabled{opacity:.5;cursor:default}.gj-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:rgba(8,11,18,.72);padding:20px;z-index:10}.gj-overlay__sheet{width:100%;max-width:340px;background:var(--gj-surface);border:1px solid var(--gj-border);border-radius:20px;padding:24px 20px;text-align:center}.gj-overlay__title{font-size:22px;font-weight:800}.gj-overlay__desc{margin-top:8px;color:var(--gj-text-dim);font-size:14px;line-height:1.5}.gj-overlay__actions{margin-top:20px;display:flex;flex-direction:column;gap:8px}.ttt-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.ttt-title{font-size:18px;font-weight:800}.ttt-modes{display:flex;gap:6px}.ttt-mode{padding:8px 12px;font-size:13px}.ttt-mode.is-on{background:var(--gj-accent);border-color:var(--gj-accent);color:var(--gj-accent-ink)}.ttt-stage{height:100%;display:grid;place-items:center;padding:16px}.ttt-board{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:8px;width:min(100%,60vh,380px);aspect-ratio:1}.ttt-cell{-webkit-appearance:none;appearance:none;border:1px solid var(--gj-border);background:var(--gj-surface);color:var(--gj-text);border-radius:var(--gj-radius);font-size:clamp(32px,12vw,56px);font-weight:800;cursor:pointer;touch-action:manipulation;transition:background .12s ease;min-width:0;min-height:0;padding:0;line-height:1;display:grid;place-items:center}.ttt-cell:disabled{cursor:default}.ttt-cell:not(:disabled):hover{background:var(--gj-surface-2)}.ttt-cell.is-win{background:var(--gj-accent);border-color:var(--gj-accent);color:var(--gj-accent-ink)}.ttt-status{text-align:center;color:var(--gj-text-dim);font-size:14px;font-weight:600}.ttt-footer{display:flex;flex-direction:column;gap:4px;text-align:center}.ttt-rule{color:var(--gj-text-dim);font-size:12px;opacity:.75}.ttt-cell.is-vanishing{opacity:.38;border-style:dashed;border-color:var(--gj-accent)}.ttt-center{height:100%;display:grid;place-items:center;padding:16px}.ttt-card{width:min(100%,22rem);display:flex;flex-direction:column;gap:10px;padding:20px;background:var(--gj-surface);border:1px solid var(--gj-border);border-radius:20px;text-align:center}.ttt-card__title{margin:0;font-size:20px}.ttt-card__lead{margin:0;color:var(--gj-text-dim);font-size:13px;line-height:1.5}.ttt-field{display:flex;flex-direction:column;gap:4px;text-align:left;font-size:13px;color:var(--gj-text-dim)}.ttt-field input,.ttt-join input{padding:11px 12px;border-radius:10px;border:1px solid var(--gj-border);background:#121826;color:var(--gj-text);font-size:16px;width:100%;box-sizing:border-box}.ttt-field input:focus,.ttt-join input:focus{outline:2px solid var(--gj-accent);outline-offset:1px}.ttt-error{margin:0;color:#ff7b7b;font-size:13px}.ttt-ghost{background:transparent;color:var(--gj-text-dim)}.ttt-btn--sm{padding:7px 12px;font-size:13px}.ttt-code{font-size:clamp(2rem,12vw,2.75rem);font-weight:800;letter-spacing:.2em;font-variant-numeric:tabular-nums}.ttt-lobby{height:100%;overflow-y:auto;display:flex;flex-direction:column;gap:10px;padding:8px 16px 24px;max-width:26rem;margin:0 auto;width:100%;box-sizing:border-box}.ttt-lobby__head{display:flex;align-items:center;justify-content:space-between;gap:12px}.ttt-lobby__name{font-size:16px;font-weight:700}.ttt-lobby__rating{color:var(--gj-text-dim);font-size:13px}.ttt-join{display:flex;gap:6px}.ttt-join input{flex:1;text-transform:uppercase;letter-spacing:.15em}.ttt-notice{margin:0;padding:9px 12px;border-radius:10px;background:rgba(77,141,255,.12);color:var(--gj-accent);font-size:13px}.ttt-rank__title{margin-top:6px;font-size:13px;font-weight:700;color:var(--gj-text-dim)}.ttt-rank__empty{margin:0;color:var(--gj-text-dim);font-size:13px}.ttt-rank{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:4px}.ttt-rank__row{display:grid;grid-template-columns:1.75rem 1fr auto auto;gap:8px;align-items:center;padding:8px 10px;background:var(--gj-surface);border-radius:8px;font-size:13px}.ttt-rank__no{color:var(--gj-text-dim);text-align:center}.ttt-rank__name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ttt-rank__score{font-weight:700;font-variant-numeric:tabular-nums}.ttt-rank__wl{color:var(--gj-text-dim);font-size:.85em}.ttt-vs{margin-left:8px;font-weight:400;font-size:.72em;color:var(--gj-text-dim)}.ttt-delta{margin-top:6px;font-weight:700;color:var(--gj-accent)}.ttt-toast{position:absolute;left:50%;transform:translate(-50%);top:10px;z-index:5;max-width:min(90%,26rem);padding:8px 14px;border-radius:999px;background:rgba(8,11,18,.92);border:1px solid var(--gj-border);font-size:13px;text-align:center;pointer-events:none}