:root{font-family:Avenir Next,Segoe UI,sans-serif;color:#152238;background:radial-gradient(circle at top left,#f8fafc,#e7eef8 72%);line-height:1.4;--panel-bg: rgba(255, 255, 255, .95);--panel-border: #a8b9d3;--text-main: #152238;--text-muted: #3f5578;--accent: #1f6feb;--hint-bg: #eef3fb;--hint-border: #8ca1c4;--hint-text: #0f2d57;--cell-bg: #ffffff;--cell-border: #7291be;--cell-filled: #0f172a;--cell-empty-bg: #fff4f0;--cell-empty-text: #b42318}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--text-main)}#root{min-height:100vh}.app-layout{max-width:960px;margin:0 auto;padding:24px;display:grid;gap:18px}.menu{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.menu-item{text-align:left;border:1px solid #9db1d0;background:#f8fbff;color:#14213a;border-radius:12px;padding:12px;cursor:pointer;transition:transform .12s ease,border-color .12s ease}.menu-item:hover{transform:translateY(-2px);border-color:var(--accent)}.menu-item.active{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.menu-item small{display:block;margin-top:6px;color:#36507c}.game-panel{border:1px solid var(--panel-border);border-radius:14px;background:var(--panel-bg);padding:16px}.game-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.game-card{display:block;padding:16px;border-radius:14px;border:1px solid #9db1d0;background:#f8fbff;text-decoration:none;color:#14213a;transition:transform .12s ease,border-color .12s ease}.game-card:hover{transform:translateY(-2px);border-color:var(--accent)}.game-card h2{margin:0 0 6px;font-size:1.2rem}.game-card p{margin:0;color:var(--text-muted)}.back-link{color:var(--accent);text-underline-offset:3px}.coop-card{border:1px solid var(--panel-border);border-radius:14px;background:var(--panel-bg);padding:16px;display:grid;gap:14px}.coop-card.solved{animation:winGlow 1.8s ease-in-out infinite alternate}.coop-actions{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.coop-form{display:grid;gap:10px}.coop-label{font-weight:600}.coop-input{background:#fff;border:1px solid #8fa7cb;border-radius:8px;color:#10203f;padding:9px 10px}.coop-error{margin:0;color:#b02222}.coop-actions-row{display:flex;gap:10px;flex-wrap:wrap}.coop-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.coop-meta p{margin:0}.coop-toolbar{display:flex;gap:10px;flex-wrap:wrap}.coop-grid-layout{--cell-size: 46px;--hint-font-size: .92rem;display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto 1fr;gap:8px;width:fit-content}.coop-zoom-instructions{color:var(--text-muted);font-size:.92rem}.coop-zoom-shell{position:relative;width:min(100%,1100px);min-height:360px;height:min(72vh,780px);resize:both;overflow:auto;border:1px dashed var(--panel-border);border-radius:10px;padding:6px;background:#ffffff59}.coop-zoom-content{width:fit-content}.coop-corner{min-width:96px}.coop-column-hints{display:grid;grid-auto-flow:column;grid-auto-columns:var(--cell-size);align-items:end;gap:4px}.coop-row-hints{display:grid;grid-auto-rows:var(--cell-size);gap:4px}.coop-hint{min-height:var(--cell-size, 46px);min-width:var(--cell-size, 46px);display:flex;align-items:center;justify-content:center;text-align:center;padding:4px;border-radius:8px;border:1px solid var(--hint-border);background:var(--hint-bg);color:var(--hint-text);font-size:var(--hint-font-size);font-weight:700;font-variant-numeric:tabular-nums}.coop-hint-column{display:flex;flex-direction:column;justify-content:flex-end;gap:1px;line-height:1;font-size:calc(var(--hint-font-size) * .92)}.coop-hint-row{min-width:96px;display:flex;justify-content:flex-end;align-items:center;gap:4px;padding-right:8px;white-space:nowrap;background:transparent}.coop-hint-row span{min-width:.9em;text-align:center}.coop-board{display:grid;gap:4px}.coop-cell{width:var(--cell-size, 46px);height:var(--cell-size, 46px);border-radius:8px;border:1px solid var(--cell-border);background:var(--cell-bg);color:var(--cell-empty-text);font-weight:700;cursor:pointer}.coop-cell.filled{background:var(--cell-filled);border-color:var(--cell-filled);color:#fff}.coop-cell.empty{background:var(--cell-empty-bg);color:var(--cell-empty-text)}.coop-cell.error{border:2px solid #ff5f5f;box-shadow:0 0 0 2px #ff5f5f47}.coop-status{margin:0}.coop-status.solved{color:#107337;font-weight:700;font-size:clamp(1.2rem,2.2vw,1.7rem);line-height:1.25;animation:winPulse 1.1s ease-in-out infinite}.coop-status.warning{color:#b54708;font-weight:700}.coop-win-celebration{display:flex;gap:10px;justify-content:center;align-items:flex-end;min-height:28px}.coop-win-celebration span{width:10px;height:10px;border-radius:50%;background:var(--accent);animation:winBounce .7s ease-in-out infinite}.coop-win-celebration span:nth-child(2){animation-delay:.12s}.coop-win-celebration span:nth-child(3){animation-delay:.24s}@keyframes winPulse{0%{transform:scale(1)}50%{transform:scale(1.03)}to{transform:scale(1)}}@keyframes winBounce{0%,to{transform:translateY(0);opacity:.8}50%{transform:translateY(-8px);opacity:1}}@keyframes winGlow{0%{box-shadow:0 0 #2376ff14}to{box-shadow:0 0 26px #2376ff42}}.game-shell{display:grid;gap:12px;margin-top:12px}.game-status{margin:0}.board{display:grid;grid-template-columns:repeat(3,minmax(52px,90px));gap:8px}.cell{aspect-ratio:1 / 1;border-radius:10px;border:1px solid #5a678f;background:#202a44;color:#f8fbff;font-size:1.2rem;font-weight:700;cursor:pointer}.reset{width:fit-content;padding:8px 12px;border-radius:8px;border:1px solid var(--accent);background:#f5f9ff;color:#12306b;cursor:pointer}@media(prefers-color-scheme:dark){:root{color:#e8f0ff;background:radial-gradient(circle at top left,#162033,#0b1220 72%);--panel-bg: rgba(19, 30, 49, .94);--panel-border: #5d759f;--text-main: #e8f0ff;--text-muted: #c2d2ee;--accent: #6ea8ff;--hint-bg: #223455;--hint-border: #7f99c5;--hint-text: #f4f8ff;--cell-bg: #edf3ff;--cell-border: #9fb6df;--cell-filled: #060b14;--cell-empty-bg: #ffe3dc;--cell-empty-text: #7f1111}.menu-item,.game-card{background:#1b2b47;color:#edf3ff;border-color:#6f89b8}.menu-item small,.game-card p{color:#c6d5f2}.coop-input{background:#10203a;color:#edf3ff;border-color:#8ba6d5}.coop-zoom-shell{background:#080d1861}.coop-cell.error{border-color:#ff8b8b;box-shadow:0 0 0 2px #ff8b8b4d}.coop-status.warning{color:#ffd08a}.coop-status.solved{color:#9df3bb}}@media(max-width:640px){.app-layout{padding:14px}.board{grid-template-columns:repeat(3,minmax(64px,1fr))}.coop-zoom-shell{min-height:320px;height:62vh}}