body{margin:0;background:linear-gradient(0deg,rgba(15,23,42,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(15,23,42,.05) 1px,transparent 1px),#e2e8f0;background-size:14px 14px,14px 14px,auto;color:#111827;font-family:Courier New,Lucida Console,Monaco,monospace;min-width:320px;min-height:100vh}#root{min-height:100vh}.page{margin:0 auto;max-width:1120px;padding:40px 18px 64px}.page-header h1,.detail-header h1{margin:0;font-size:34px;letter-spacing:1px}.hero{padding:24px;border:3px solid #0f172a;border-radius:4px;box-shadow:6px 6px #0f172a;background:linear-gradient(0deg,rgba(15,23,42,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(15,23,42,.12) 1px,transparent 1px),linear-gradient(135deg,#fde047,#fb7185);background-size:8px 8px,8px 8px,cover}.page-header p{margin:12px 0 0;color:#0f172a;font-weight:600}.game-grid{margin-top:24px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}.game-card-preview{border:3px solid #0f172a;border-radius:4px;padding:18px;background:#fff;box-shadow:5px 5px #0f172a}.game-id{margin:0;font-size:12px;color:#475569}.game-card-preview h2{margin:10px 0 0;font-size:21px}.game-card-preview p{margin-top:10px;line-height:1.7;color:#334155}.enter-button,.back-button,.game-actions button,.mode-button{border:3px solid #0f172a;border-radius:4px;font-size:14px;font-weight:700;box-shadow:3px 3px #0f172a;cursor:pointer}.enter-button{margin-top:16px;background:#22c55e;color:#0f172a;padding:9px 14px}.detail-header{display:grid;gap:8px}.detail-header p{margin:0;color:#475569;font-weight:600}.back-button{justify-self:start;background:#60a5fa;color:#0f172a;padding:8px 12px}.problem-card{margin-top:22px;border:3px solid #0f172a;border-radius:4px;padding:18px;background:#fff;box-shadow:5px 5px #0f172a}.detail-card h2{margin:0;font-size:21px}.problem-card p{margin:14px 0 0;line-height:1.75}.problem-card h3{margin:18px 0 8px;font-size:16px}.problem-meta{margin:0;padding:12px;border:2px dashed #475569;border-radius:4px;background:#f8fafc;white-space:pre-wrap;line-height:1.6}.game-card{position:relative;overflow:hidden;margin-top:24px;border:3px solid #0f172a;border-radius:4px;padding:18px;background:linear-gradient(0deg,rgba(15,23,42,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(15,23,42,.06) 1px,transparent 1px),#fff;background-size:10px 10px,10px 10px,auto;box-shadow:6px 6px #0f172a}.reward-layer{position:absolute;inset:0;pointer-events:none;z-index:9}.reward-pixel{position:absolute;left:50%;top:52%;width:10px;height:10px;border:2px solid #0f172a;border-radius:2px;background:var(--color);opacity:0;animation:reward-fly .9s steps(6) forwards;animation-delay:var(--delay)}.reward-badge{position:absolute;left:50%;top:43%;transform:translate(-50%,-50%);border:3px solid #0f172a;border-radius:4px;padding:8px 12px;background:linear-gradient(135deg,#22c55e,#86efac);color:#0f172a;font-weight:900;letter-spacing:1px;box-shadow:4px 4px #0f172a;animation:reward-badge-pop .96s steps(5) forwards}@keyframes reward-fly{0%{opacity:1;transform:translate(-50%,-50%) scale(1)}to{opacity:0;transform:translate(calc(-50% + var(--tx)),calc(-50% + var(--ty))) scale(.25)}}@keyframes reward-badge-pop{0%{opacity:0;transform:translate(-50%,-50%) scale(.5)}20%{opacity:1;transform:translate(-50%,-50%) scale(1.15)}80%{opacity:1;transform:translate(-50%,-50%) scale(1)}to{opacity:0;transform:translate(-50%,-70%) scale(1)}}.game-card h3{margin:0;font-size:24px}.game-card>p{margin:8px 0 0;font-weight:600;color:#334155}.pixel-hud{margin-top:14px;display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}.hud-item{border:2px solid #0f172a;border-radius:4px;padding:8px 10px;background:#fef08a}.hud-item span{display:block;font-size:12px;color:#475569}.hud-item strong{display:block;margin-top:3px;font-size:16px}.shape-board{margin-top:16px;overflow-x:auto}.shape-rect{position:relative;width:494px;height:234px;border:3px solid #0f172a;border-radius:4px;background:linear-gradient(0deg,rgba(2,132,199,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(2,132,199,.14) 1px,transparent 1px),linear-gradient(135deg,#bbf7d0,#67e8f9);background-size:16px 16px,16px 16px,cover;overflow:hidden}.shape-rect-label{position:absolute;font-weight:700;color:#0f172a;font-size:13px;padding:2px 6px;background:#fffc;border:2px solid #0f172a;border-radius:4px}.shape-length{left:50%;top:8px;transform:translate(-50%)}.shape-width{right:8px;top:50%;transform:translateY(-50%)}.shape-square{position:absolute;border:3px solid #2563eb;background:#3b82f640;transition:width .18s steps(6),height .18s steps(6),left .18s steps(6),top .18s steps(6)}.shape-square.invalid{border-color:#dc2626;background:#f871714d}.shape-square-label{position:absolute;padding:2px 6px;border:2px solid #0f172a;border-radius:4px;background:#fff;color:#0f172a;font-size:12px;font-weight:700}.shape-square-label.top{left:50%;top:4px;transform:translate(-50%)}.shape-square-label.right{right:4px;top:50%;transform:translateY(-50%)}.explore-panel{margin-top:16px;border:3px solid #0f172a;border-radius:4px;padding:12px;background:#f8fafc}.explore-panel h4,.game-form h4{margin:0;font-size:16px}.explore-panel p{margin:8px 0 0;color:#334155}.mode-buttons{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}.mode-button{background:#e2e8f0;color:#0f172a;padding:8px 10px}.mode-button.active{background:#f43f5e;color:#fff}.range-label{display:grid;gap:8px;margin-top:12px;font-weight:700}.range-label input{width:100%}.fit-status{margin-top:10px;font-weight:700}.fit-status.ok{color:#166534}.fit-status.fail{color:#b91c1c}.game-form{margin-top:18px;display:grid;gap:12px;border:3px solid #0f172a;border-radius:4px;padding:12px;background:#fff}.game-form label{display:grid;gap:6px;font-weight:700}.game-form input{border:2px solid #334155;border-radius:4px;padding:10px 12px;font-size:16px;background:#f8fafc}.game-actions{display:flex;flex-wrap:wrap;gap:10px}.game-actions button{padding:9px 12px;background:#fde047;color:#0f172a}.game-actions button[type=submit]{background:#60a5fa}.hint{margin-top:12px;color:#0f766e;font-weight:700}.hint-icon{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;margin-right:6px;border:2px solid #0f172a;border-radius:4px;background:linear-gradient(135deg,#f43f5e,#fb7185);box-shadow:2px 2px #0f172a;animation:hint-pop 1.1s steps(2) infinite}.hint-icon-svg{color:#fff}@keyframes hint-pop{0%{transform:translateY(0)}50%{transform:translateY(-2px)}to{transform:translateY(0)}}.feedback{margin-top:12px;font-weight:700}.feedback.success{color:#166534}.attempts{margin-top:6px;color:#475569;font-weight:700}.p1002-card .game-actions button[type=submit]{background:#22c55e}.p1002-options{margin-top:12px;display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px}.p1002-option{text-align:left;border:3px solid #0f172a;border-radius:4px;box-shadow:3px 3px #0f172a;background:#e2e8f0;color:#0f172a;padding:8px 10px;cursor:pointer}.p1002-option span{display:block;font-weight:700}.p1002-option strong{display:block;margin-top:4px;font-size:12px;color:#334155}.p1002-option.active{background:#f97316;color:#fff}.p1002-option.active strong{color:#ffffffeb}.p1002-board{margin-top:12px;border:3px solid #0f172a;border-radius:4px;background:#f8fafc;padding:10px;overflow-x:auto}.p1002-grid{display:grid;gap:2px;width:max-content}.p1002-cell{width:14px;height:14px;border:1px solid #0f172a;background:#38bdf8}@media(max-width:700px){.page-header h1,.detail-header h1{font-size:28px}.shape-rect{width:418px;height:198px}}