:root{
  --bg:#F3F4FA;
  --bg-grad:radial-gradient(1200px 500px at 10% -10%,#E7E4FF 0%,transparent 60%),radial-gradient(900px 400px at 100% 0%,#DDF6F2 0%,transparent 55%);
  --surface:#FFFFFF; --surface-2:#F6F6FC; --ink:#171A2B; --muted:#5E6478; --line:#E3E5F0; --line-strong:#CBCFE0;
  --primary:#5B4CF5; --primary-2:#8B5CF6; --primary-soft:#ECE9FF;
  --m:#0E8F86; --m-soft:#D7F5F0; --m-ink:#0B6E67;      /* Muhammad: teal */
  --n:#D9377E; --n-soft:#FDE2EE; --n-ink:#A8265F;      /* Nely: rose */
  --pending:#B7791F; --pending-soft:#FFF1D6;
  --progress:#2563EB; --progress-soft:#DCEBFF;
  --done:#1E8E4B; --done-soft:#DCF5E6;
  --over:#D23F3F; --over-soft:#FFE1E1;
  --shadow:0 1px 2px rgba(23,26,43,.05),0 8px 24px -12px rgba(23,26,43,.18);
  --radius:16px;
  --font:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0F1120;
    --bg-grad:radial-gradient(1200px 500px at 10% -10%,#2A2460 0%,transparent 60%),radial-gradient(900px 400px at 100% 0%,#0E3B3A 0%,transparent 55%);
    --surface:#181B2E; --surface-2:#1F2338; --ink:#EEF0FA; --muted:#A0A6BF; --line:#2A2F47; --line-strong:#3B4160;
    --primary:#8B7CFF; --primary-2:#A78BFA; --primary-soft:#2A2750;
    --m:#2DD4BF; --m-soft:#0F3A38; --m-ink:#9FF0E6;
    --n:#F472B6; --n-soft:#4A1A33; --n-ink:#FBC6E0;
    --pending:#F2B84B; --pending-soft:#3A2E12;
    --progress:#60A5FA; --progress-soft:#162B4D;
    --done:#4ADE80; --done-soft:#12301F;
    --over:#F87171; --over-soft:#3D1616;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -12px rgba(0,0,0,.6);
    color-scheme:dark;
  }
}

*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0}
body{font-family:var(--font);background:var(--bg);background-image:var(--bg-grad);background-attachment:fixed;color:var(--ink);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
body.modal-open{overflow:hidden}
h1,h2,h3{margin:0;line-height:1.2}
button{font:inherit;color:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.app{max-width:1120px;margin:0 auto;padding:28px 20px 64px}
.top{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.brand{display:flex;align-items:center;gap:14px}
.brand h1{font-size:26px;font-weight:800;letter-spacing:-.02em}
.brand p{margin:2px 0 0;color:var(--muted);font-size:14px}
.logo{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;font-weight:800;font-size:20px;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 8px 20px -8px var(--primary);flex:0 0 auto}
.top-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.me{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--muted);padding:8px 12px;background:var(--surface);border:1px solid var(--line);border-radius:999px;font-size:14px}

.btn{border:1px solid transparent;border-radius:12px;padding:10px 16px;font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;transition:transform .08s,box-shadow .15s,background .15s,filter .15s}
.btn:active{transform:translateY(1px)}
.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 22px -10px var(--primary)}
.btn.primary:hover{filter:brightness(1.06)}
.btn.ghost{background:var(--surface);border-color:var(--line-strong)}
.btn.ghost:hover{background:var(--surface-2)}
.btn.success{background:var(--done-soft);color:var(--done)}
.btn.danger{background:transparent;color:var(--over)}
.btn.danger:hover{background:var(--over-soft)}
.btn.small{padding:7px 12px;font-size:13px;border-radius:10px}

.summary{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-bottom:20px}
.card{text-align:left;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;background:var(--surface);box-shadow:var(--shadow);display:flex;flex-direction:column;gap:2px;min-width:0;transition:transform .12s,box-shadow .12s}
.card:hover{transform:translateY(-2px)}
.card.active{outline:2px solid var(--primary);outline-offset:1px}
.card .num{font-size:30px;font-weight:800;letter-spacing:-.03em;line-height:1.1;font-variant-numeric:tabular-nums}
.card .label{color:var(--muted);font-weight:600;font-size:13px}
.card.total{background:linear-gradient(135deg,var(--primary-soft),var(--surface) 70%)} .card.total .num{color:var(--primary)}
.card.pending{background:linear-gradient(135deg,var(--pending-soft),var(--surface) 70%)} .card.pending .num{color:var(--pending)}
.card.progress{background:linear-gradient(135deg,var(--progress-soft),var(--surface) 70%)} .card.progress .num{color:var(--progress)}
.card.done{background:linear-gradient(135deg,var(--done-soft),var(--surface) 70%)} .card.done .num{color:var(--done)}
.card.over{background:linear-gradient(135deg,var(--over-soft),var(--surface) 70%)} .card.over .num{color:var(--over)}

.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:7px 13px;font-weight:600;font-size:13px;color:var(--muted)}
.chip:hover{border-color:var(--line-strong);color:var(--ink)}
.chip.active{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chip.muhammad.active{background:var(--m);border-color:var(--m);color:#fff}
.chip.nely.active{background:var(--n);border-color:var(--n);color:#fff}
.chip.overdue.active{background:var(--over);border-color:var(--over);color:#fff}
.tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.tools input,.tools select,.body input,.body select,.body textarea{background:var(--surface);border:1px solid var(--line-strong);border-radius:12px;padding:9px 12px;font-size:14px;outline:none;min-width:0}
.tools input{width:240px}
.tools input:focus,.body input:focus,.body textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);outline:none}
.count{color:var(--muted);font-size:13px;font-weight:600;margin-bottom:10px}

.list{display:flex;flex-direction:column;gap:10px}
.task{display:flex;justify-content:space-between;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--line-strong);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow);cursor:pointer;transition:transform .1s,box-shadow .15s}
.task:hover{transform:translateY(-1px);box-shadow:0 14px 30px -16px rgba(23,26,43,.3)}
.task.a-muhammad{border-left-color:var(--m)} .task.a-nely{border-left-color:var(--n)}
.task.is-overdue{box-shadow:var(--shadow),inset 0 0 0 1px var(--over)}
.task.completed{opacity:.72} .task.completed h3{text-decoration:line-through;color:var(--muted)}
.task-main{min-width:0;flex:1}
.task-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:2px}
.task h3{font-size:16px;font-weight:700;overflow-wrap:anywhere}
.desc{margin:2px 0 8px;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;white-space:pre-line;overflow-wrap:anywhere}
.meta{display:flex;align-items:center;gap:8px 14px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.meta svg{vertical-align:-2px;margin-right:4px}
.created{margin-left:auto}
.task-actions{flex:0 0 auto}

.pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:700;line-height:1.5;white-space:nowrap}
.dot{width:8px;height:8px;border-radius:50%;background:currentColor;display:inline-block}
.p-muhammad{background:var(--m-soft);color:var(--m-ink)} .p-nely{background:var(--n-soft);color:var(--n-ink)}
.s-pending{background:var(--pending-soft);color:var(--pending)} .s-in_progress{background:var(--progress-soft);color:var(--progress)} .s-completed{background:var(--done-soft);color:var(--done)}
.due{font-weight:600} .d-overdue{color:var(--over);font-weight:800} .d-today{color:var(--over);font-weight:700} .d-soon{color:var(--pending)} .d-later,.d-none,.d-done{color:var(--muted);font-weight:500}
.notes{color:var(--primary);font-weight:600}

.empty{text-align:center;padding:48px 20px;background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--radius);color:var(--muted)}
.empty h3{color:var(--ink);margin-bottom:6px}

/* modal */
.modal{position:fixed;inset:0;background:rgba(15,17,32,.45);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:50}
.sheet{background:var(--surface);border-radius:20px;width:100%;max-width:560px;max-height:calc(100vh - 40px);display:flex;flex-direction:column;box-shadow:0 30px 80px -20px rgba(0,0,0,.45);overflow:hidden}
.sheet.wide{max-width:920px}
.sheet header{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--line)}
.sheet header h2{font-size:18px;font-weight:800}
.x{border:0;background:var(--surface-2);width:34px;height:34px;border-radius:10px;font-size:20px;line-height:1;flex:0 0 auto}
.sheet .body{padding:18px 20px;overflow:auto;display:flex;flex-direction:column;gap:14px}
.sheet .body.two{flex-direction:row;gap:24px;align-items:flex-start}
.sheet .body.two .col{flex:1;min-width:0;display:flex;flex-direction:column;gap:14px}
.sheet footer{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid var(--line);background:var(--surface-2)}
.body label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:700;color:var(--muted)}
.body textarea{resize:vertical;min-height:44px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.req{color:var(--over)}
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg-btn{border:1px solid var(--line-strong);background:var(--surface);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700;color:var(--muted);display:inline-flex;align-items:center;gap:6px}
.seg-btn.active.p-muhammad{background:var(--m-soft);color:var(--m-ink);border-color:var(--m)}
.seg-btn.active.p-nely{background:var(--n-soft);color:var(--n-ink);border-color:var(--n)}
.seg-btn.active.s-pending{background:var(--pending-soft);color:var(--pending);border-color:var(--pending)}
.seg-btn.active.s-in_progress{background:var(--progress-soft);color:var(--progress);border-color:var(--progress)}
.seg-btn.active.s-completed{background:var(--done-soft);color:var(--done);border-color:var(--done)}
.form-actions{display:flex;justify-content:space-between;gap:10px;align-items:center}
.fine{font-size:12.5px;color:var(--muted);margin:0}
.notes-col h3{font-size:15px;font-weight:800;display:flex;gap:8px;align-items:center}
.notes-col .count{background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:1px 8px;font-size:12px;margin:0}
.notes-list{display:flex;flex-direction:column;gap:12px;max-height:46vh;overflow:auto;padding-right:4px}
.note{display:flex;gap:10px;align-items:flex-start}
.note p{margin:2px 0 0;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}
.note-head{display:flex;gap:8px;align-items:baseline;font-size:12.5px} .note-head b{font-size:13px} .note-head time{color:var(--muted)}
.avatar{flex:0 0 30px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-weight:800;font-size:13px}
#noteForm{display:flex;flex-direction:column;gap:8px;align-items:flex-end}
#noteForm textarea{width:100%}

/* login */
.login{min-height:100vh;display:grid;place-items:center;padding:20px}
.login-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:28px;width:100%;max-width:400px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow)}
.login-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:700;color:var(--muted)}
.login-card input,.login-card select{background:var(--surface);border:1px solid var(--line-strong);border-radius:12px;padding:10px 12px;font-size:15px}
.error{color:var(--over);font-weight:600;font-size:13px;margin:0}

.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;font-weight:600;font-size:14px;opacity:0;pointer-events:none;transition:.2s;z-index:60;max-width:calc(100vw - 32px)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.ok{background:var(--done);color:#fff}
.toast.error{background:var(--over);color:#fff}

@media (max-width:860px){.summary{grid-template-columns:repeat(3,minmax(0,1fr))}.sheet .body.two{flex-direction:column}}
@media (max-width:600px){
  .app{padding:18px 14px 56px}
  .summary{grid-template-columns:repeat(2,minmax(0,1fr))} .card .num{font-size:24px}
  .task{flex-direction:column;align-items:stretch} .task-actions{display:flex;justify-content:flex-end}
  .created{margin-left:0}
  .tools{width:100%} .tools input{flex:1;width:auto} 
  .row{grid-template-columns:1fr}
  .modal{padding:0;align-items:flex-end} .sheet{border-radius:20px 20px 0 0;max-height:94vh}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}