:root{--font-sans:'Inter',-apple-system,sans-serif;--radius:12px;--transition:0.2s ease}
[data-theme="dark"]{--bg:#0F0F1A;--bg2:#1A1A2E;--bg-card:rgba(26,26,46,0.95);--bg-input:rgba(99,102,241,0.05);--border:rgba(99,102,241,0.12);--text:#E8E4F0;--text2:#A0A0C0;--text3:#6060A0;--q1:#EF4444;--q2:#F59E0B;--q3:#3B82F6;--q4:#6B7280}
*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);min-height:100vh}
.app{max-width:900px;margin:0 auto}
.header{padding:16px 24px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.header h1{font-size:1rem;font-weight:700;background:linear-gradient(135deg,#EF4444,#F59E0B,#3B82F6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.header-actions{display:flex;gap:8px}
.header-actions input{padding:8px 12px;background:var(--bg-input);color:var(--text);border:1px solid var(--border);border-radius:8px;font-size:.82rem;outline:none;width:200px;font-family:var(--font-sans)}
.btn{font-family:var(--font-sans);font-size:.82rem;font-weight:500;padding:8px 16px;border-radius:8px;border:none;cursor:pointer;transition:all var(--transition)}
.btn-primary{background:linear-gradient(135deg,#6366F1,#8B5CF6);color:#fff}.btn-primary:hover{transform:translateY(-1px)}
.matrix{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:20px}
.quadrant{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;min-height:200px}
.q1{border-top:3px solid var(--q1)}.q2{border-top:3px solid var(--q2)}.q3{border-top:3px solid var(--q3)}.q4{border-top:3px solid var(--q4)}
.q-header{margin-bottom:12px}.q-header h2{font-size:.85rem;font-weight:700;margin-bottom:2px}.q-header p{font-size:.7rem;color:var(--text3)}
.task-item{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;padding:8px 10px;margin-bottom:6px;font-size:.8rem;display:flex;align-items:center;gap:8px;animation:fadeIn .2s}
.task-item.done{text-decoration:line-through;opacity:.5}
.task-item input[type="checkbox"]{accent-color:#6366F1}
.task-item .task-text{flex:1}
.task-item .task-move{font-size:.68rem;padding:2px 6px;border:1px solid var(--border);border-radius:4px;background:none;color:var(--text3);cursor:pointer}
.task-item .task-move:hover{border-color:#6366F1;color:#6366F1}
.task-item .task-del{font-size:.68rem;padding:2px 6px;border:none;background:none;color:var(--text3);cursor:pointer}
.task-item .task-del:hover{color:#EF4444}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@media(max-width:600px){.matrix{grid-template-columns:1fr}.header{flex-direction:column;align-items:stretch}.header-actions input{width:100%}}