:root{
  --bg:#f6f7fb; --card:#ffffff; --text:#1c1f2b; --muted:#6b7280;
  --line:#e5e7eb; --accent:#4f46e5; --accent-soft:#eef2ff;
  --danger:#dc2626; --warn:#d97706; --ok:#059669;
  --radius:14px; --shadow:0 6px 24px rgba(20,20,45,.08);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#12141c; --card:#1a1d27; --text:#e8eaf2; --muted:#9aa1b4;
    --line:#282c3a; --accent:#7c83ff; --accent-soft:#232744;
    --shadow:0 6px 24px rgba(0,0,0,.35);
  }
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);
  font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Arial,sans-serif}
.hidden{display:none !important}
button{font:inherit;cursor:pointer;border-radius:10px;border:1px solid transparent;padding:8px 12px}
button.primary{background:var(--accent);color:#fff}
button.ghost{background:transparent;color:var(--text);border-color:var(--line)}
button.icon{background:transparent;border:none;font-size:20px;color:var(--text);padding:4px 10px}
button.small{padding:2px 10px}
button.danger,.danger{color:var(--danger)}
.muted{color:var(--muted);margin:2px 0}
.error{color:var(--danger);min-height:18px;margin:4px 0 0}
.spacer{flex:1}

.login{min-height:100dvh;display:grid;place-items:center;padding:20px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;
  display:flex;flex-direction:column;gap:10px;width:min(420px,100%)}
.card.wide{width:min(560px,100%);max-height:92dvh;overflow:auto}
.card h1{margin:0;font-size:22px}
input,textarea,select{font:inherit;color:var(--text);background:var(--bg);
  border:1px solid var(--line);border-radius:10px;padding:9px 11px;width:100%}
label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
label.check{flex-direction:row;align-items:center;gap:6px;white-space:nowrap;padding-top:18px}
label.check input{width:auto}
.row{display:flex;gap:10px;flex-wrap:wrap}
.grow{flex:1;min-width:130px}

.topbar{display:flex;align-items:center;gap:12px;justify-content:space-between;
  padding:10px 16px;background:var(--card);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:5;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:8px}
.brand strong{font-size:17px}
#menuBtn{display:none}
.monthnav{display:flex;align-items:center;gap:6px}
.monthnav span{min-width:130px;text-align:center;font-weight:600;text-transform:capitalize}
.actions{display:flex;gap:8px;align-items:center}

.layout{display:grid;grid-template-columns:1fr 380px;gap:16px;padding:16px;align-items:start}
.calendar{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:12px}
.weekdays{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;color:var(--muted);font-size:12px;padding:0 2px 6px}
.weekdays div{text-align:center}
.grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.day{min-height:96px;border:1px solid var(--line);border-radius:10px;padding:6px;background:transparent;
  display:flex;flex-direction:column;gap:3px;text-align:left;overflow:hidden}
.day:hover{border-color:var(--accent)}
.day.other{opacity:.42}
.day.today{border-color:var(--accent);background:var(--accent-soft)}
.day.selected{outline:2px solid var(--accent)}
.day .num{font-weight:600;font-size:13px}
.pill{font-size:11px;border-radius:6px;padding:2px 5px;background:var(--accent-soft);color:var(--text);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pill.p1{background:#fef3c7;color:#7c4a03}
.pill.p2{background:#fee2e2;color:#991b1b}
.pill.done{opacity:.5;text-decoration:line-through}
.pill.overdue{background:#fee2e2;color:#991b1b}
.more{font-size:11px;color:var(--muted)}
.day .cnt{display:none}

.side{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;
  display:flex;flex-direction:column;gap:14px;position:sticky;top:70px;max-height:calc(100dvh - 90px);overflow:auto}
.side-head{display:flex;align-items:center;justify-content:space-between}
.side h2{margin:0;font-size:17px;text-transform:capitalize}
.side h3{margin:0 0 6px;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.block{display:flex;flex-direction:column}
.item{display:flex;gap:9px;align-items:flex-start;padding:8px;border-radius:10px}
.item:hover{background:var(--bg)}
.item .cb{margin-top:2px;width:18px;height:18px;flex:none;cursor:pointer}
.item .body{flex:1;min-width:0;cursor:pointer}
.item .t{font-weight:500;word-break:break-word}
.item .meta{font-size:12px;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap}
.item.done .t{text-decoration:line-through;color:var(--muted)}
.item .dot{width:8px;height:8px;border-radius:50%;flex:none;margin-top:6px;background:var(--accent)}
.item .dot.p1{background:var(--warn)} .item .dot.p2{background:var(--danger)}
.empty{color:var(--muted);font-size:13px;padding:6px 8px}

.modal{position:fixed;inset:0;background:rgba(10,12,20,.55);display:grid;place-items:center;padding:16px;z-index:20}
.modal-actions{display:flex;gap:8px;align-items:center;margin-top:6px}
.reminders{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.chip{flex-direction:row;align-items:center;gap:5px;border:1px solid var(--line);border-radius:999px;
  padding:5px 10px;font-size:12px;color:var(--text)}
.chip input{width:auto}
.setting{display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:10px 0;border-bottom:1px solid var(--line)}

.alarm-toggle{padding-top:6px;color:var(--text);font-size:14px}
.item .fire{flex:none;margin-top:2px}
.alarm-screen{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:20px;
  background:rgba(120,10,10,.92);animation:alarmPulse 1.1s ease-in-out infinite alternate}
@keyframes alarmPulse{from{background:rgba(120,10,10,.88)}to{background:rgba(190,25,25,.95)}}
.alarm-box{background:var(--card);border-radius:20px;box-shadow:var(--shadow);padding:28px;
  width:min(460px,100%);text-align:center;display:flex;flex-direction:column;gap:10px}
.alarm-icon{font-size:56px;line-height:1}
.alarm-box h2{margin:0;font-size:22px;word-break:break-word}
.alarm-actions{display:flex;flex-direction:column;gap:8px;margin-top:8px}
.alarm-actions button{padding:12px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--card);
  border:1px solid var(--line);box-shadow:var(--shadow);border-radius:10px;padding:10px 16px;z-index:40}

@media (max-width:900px){
  .layout{grid-template-columns:1fr;padding:10px;gap:10px}
  .side{position:static;max-height:none}
  .day{min-height:64px}
  .day .pill{display:none}
  .day .cnt{display:block;font-size:11px;color:var(--muted)}
  .monthnav span{min-width:110px;font-size:14px}
  .topbar{padding:8px 10px}
}