:root{
  --bg:#0f172a; --card:#1e293b; --card2:#273449;
  --txt:#e2e8f0; --muted:#94a3b8; --line:#334155;
  --accent:#22c55e; --accent2:#16a34a; --gold:#fbbf24; --red:#f87171;
}
*{box-sizing:border-box}
body{
  margin:0; font-family:"Segoe UI",system-ui,sans-serif;
  background:linear-gradient(160deg,#0f172a,#111c30); color:var(--txt);
  min-height:100vh;
}
#confetti{position:fixed;inset:0;pointer-events:none;z-index:50}

.topbar{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;
  padding:16px 24px;background:rgba(30,41,59,.7);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:10;backdrop-filter:blur(8px);
}
.brand{display:flex;align-items:center;gap:10px}
.brand h1{font-size:20px;margin:0}
.logo{font-size:24px}
.stats{display:flex;align-items:center;gap:22px}
.stat{text-align:center;min-width:48px}
.stat-big{font-size:22px;font-weight:700}
.stat-label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
.streak .stat-big{color:var(--gold)}
.xpwrap{min-width:160px}
.xpbar{height:10px;background:var(--card2);border-radius:6px;overflow:hidden;margin-bottom:4px}
.xpfill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--gold));
  transition:width .5s ease}

main{max-width:760px;margin:24px auto;padding:0 16px;display:flex;flex-direction:column;gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.card h2{margin:0 0 12px;font-size:17px}
.focus{border:1px solid var(--accent2);box-shadow:0 0 0 1px rgba(34,197,94,.15)}
.focus-head{display:flex;justify-content:space-between;align-items:baseline}
.today-progress{font-size:13px;color:var(--muted)}
.hint{font-size:12px;color:var(--muted);margin:2px 0 12px}
.muted{color:var(--muted);font-weight:400;font-size:13px}

.tasklist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.task{
  display:flex;align-items:center;gap:12px;background:var(--card2);
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;transition:.2s;
}
.task.done{opacity:.5}
.task.done .task-title{text-decoration:line-through}
.task.overdue{border-color:var(--red)}
.check{
  width:24px;height:24px;border-radius:50%;border:2px solid var(--muted);
  flex:0 0 auto;cursor:pointer;display:flex;align-items:center;justify-content:center;
  font-size:14px;color:transparent;transition:.15s;
}
.check:hover{border-color:var(--accent)}
.task.done .check{background:var(--accent);border-color:var(--accent);color:#fff}
.task-main{flex:1;min-width:0}
.task-title{font-weight:600;font-size:15px}
.task-meta{font-size:12px;color:var(--muted);margin-top:2px;display:flex;gap:10px;flex-wrap:wrap}
.badge{padding:1px 7px;border-radius:6px;font-size:11px}
.p1{background:rgba(34,197,94,.2);color:#86efac}
.p2{background:rgba(251,191,36,.2);color:#fcd34d}
.p3{background:rgba(248,113,113,.2);color:#fca5a5}
.due.late{color:var(--red)}
.task-actions{display:flex;gap:6px;flex:0 0 auto}
.iconbtn{background:none;border:1px solid var(--line);color:var(--muted);border-radius:7px;
  padding:4px 8px;cursor:pointer;font-size:12px;transition:.15s}
.iconbtn:hover{color:var(--txt);border-color:var(--muted)}
.iconbtn.del:hover{color:var(--red);border-color:var(--red)}

.addform{display:flex;flex-direction:column;gap:10px}
.addform input,.addform select{
  background:var(--card2);border:1px solid var(--line);color:var(--txt);
  border-radius:8px;padding:10px 12px;font-size:14px;
}
.addform .row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.addform .row select,.addform .row input[type=number]{flex:1;min-width:90px}
.addform .row input[type=date]{flex:1;min-width:130px}
.chk{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);cursor:pointer}
button.add{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:11px;
  font-size:15px;font-weight:600;cursor:pointer;transition:.15s}
button.add:hover{background:var(--accent2)}

.onething{width:100%;margin-top:12px;background:var(--card2);color:var(--gold);
  border:1px dashed var(--gold);border-radius:10px;padding:12px;font-size:15px;font-weight:600;
  cursor:pointer;transition:.15s}
.onething:hover{background:rgba(251,191,36,.1)}
.onething-box{margin-top:12px;padding:14px;border-radius:10px;background:rgba(251,191,36,.08);
  border:1px solid var(--gold);font-size:15px}
.onething-box b{color:var(--gold)}
.hidden{display:none}

.empty{color:var(--muted);font-size:14px;font-style:italic;padding:8px 0}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);
  background:var(--accent2);color:#fff;padding:12px 20px;border-radius:10px;font-weight:600;
  box-shadow:0 8px 24px rgba(0,0,0,.4);transition:.4s;z-index:60;opacity:0}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}