:root{
  --brand:#0f5bd8; --brand-d:#0b47ab; --brand-50:#eaf1fd;
  --bg:#f3f5f9; --card:#fff; --text:#1b2433; --muted:#667085; --line:#e4e8ef;
  --green:#12a150; --green-50:#e7f6ee; --red:#d92d20; --red-50:#fdecea; --amber:#dc8a00; --amber-50:#fff5e0;
  --urgent:#d92d20; --high:#ef6c00; --normal:#0f5bd8; --low:#8a94a6;
  --r:14px; --shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);
  --nav-h:62px; --top-h:56px;
  --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--brand)}
.boot{display:grid;place-items:center;height:100vh}
.spinner{width:30px;height:30px;border:3px solid var(--brand-50);border-top-color:var(--brand);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- auth ---------- */
.auth{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:24px 18px;max-width:420px;margin:auto}
.auth .logo{width:56px;height:56px;margin-bottom:14px}
.auth h1{font-size:22px;margin:0 0 4px}
.auth p.sub{color:var(--muted);margin:0 0 22px}
.auth .card{padding:20px}
.auth .links{display:flex;justify-content:space-between;margin-top:16px;font-size:14px}
.linkbtn{background:none;border:0;color:var(--brand);padding:6px 0;cursor:pointer;font-weight:500}

/* ---------- shell ---------- */
.top{position:sticky;top:0;z-index:20;height:var(--top-h);background:var(--brand);color:#fff;display:flex;align-items:center;padding:0 8px 0 16px;gap:8px}
.top h1{font-size:18px;margin:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600}
.top .iconbtn{color:#fff}
.iconbtn{position:relative;background:none;border:0;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;cursor:pointer}
.iconbtn:active{background:rgba(255,255,255,.15)}
.badge{position:absolute;top:5px;right:4px;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:#ff3b30;color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center;border:2px solid var(--brand)}
main{padding:14px 14px calc(var(--nav-h) + 90px + var(--safe-b));max-width:760px;margin:auto}
.nav{position:fixed;bottom:0;left:0;right:0;z-index:20;height:calc(var(--nav-h) + var(--safe-b));padding-bottom:var(--safe-b);background:#fff;border-top:1px solid var(--line);display:flex}
.nav a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;text-decoration:none;color:var(--muted);font-size:11.5px;font-weight:500;position:relative}
.nav a.on{color:var(--brand)}
.nav a .badge{top:4px;right:calc(50% - 22px);border-color:#fff}
.fab{position:fixed;right:18px;bottom:calc(var(--nav-h) + 18px + var(--safe-b));z-index:21;width:58px;height:58px;border-radius:18px;background:var(--brand);color:#fff;border:0;box-shadow:0 6px 16px rgba(15,91,216,.35);display:grid;place-items:center;cursor:pointer}
.fab:active{background:var(--brand-d)}
svg.i{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* ---------- building blocks ---------- */
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow)}
.pad{padding:16px}
.section-title{font-size:13px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin:18px 4px 8px}
label.f{display:block;font-size:13px;font-weight:600;color:#344054;margin:14px 0 6px}
.input,select.input,textarea.input{width:100%;padding:12px 13px;border:1px solid #cfd6e1;border-radius:10px;background:#fff;outline:none}
.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-50)}
textarea.input{min-height:84px;resize:vertical}
.otp-input{font-size:28px;letter-spacing:12px;text-align:center;font-weight:700;padding:12px 6px}
.btn{text-decoration:none;white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:10px;border:1px solid transparent;background:var(--brand);color:#fff;font-weight:600;cursor:pointer;min-height:46px}
.btn:active{background:var(--brand-d)}
.btn[disabled]{opacity:.55;pointer-events:none}
.btn.block{width:100%}
.btn.ghost{background:#fff;color:var(--text);border-color:#cfd6e1}
.btn.ghost:active{background:#f2f4f7}
.btn.green{background:var(--green)} .btn.red{background:var(--red)}
.btn.sm{min-height:34px;padding:6px 12px;font-size:13.5px;border-radius:8px}
.row{display:flex;gap:10px;align-items:center}
.row.wrap{flex-wrap:wrap}
.grow{flex:1;min-width:0}
.muted{color:var(--muted)} .small{font-size:13px}
.err{color:var(--red);font-size:13.5px;margin-top:10px;min-height:1em}
.hint{font-size:12.5px;color:var(--muted);margin-top:6px}
.empty{text-align:center;color:var(--muted);padding:48px 16px}
.empty svg{width:44px;height:44px;stroke:#b8c1d1;margin-bottom:8px}

/* segmented tabs / chips */
.seg{display:flex;background:#e6eaf1;border-radius:10px;padding:3px;gap:2px;overflow-x:auto;scrollbar-width:none}
.seg button{flex:1;border:0;background:none;padding:8px 10px;border-radius:8px;font-size:13.5px;font-weight:600;color:#475467;cursor:pointer;white-space:nowrap}
.seg button.on{background:#fff;color:var(--text);box-shadow:var(--shadow)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid #cfd6e1;background:#fff;border-radius:20px;padding:7px 13px;font-size:13.5px;cursor:pointer;user-select:none}
.chip.on{background:var(--brand-50);border-color:var(--brand);color:var(--brand);font-weight:600}
.pill{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;font-weight:700;padding:3px 8px;border-radius:20px;text-transform:uppercase;letter-spacing:.03em}
.pill.urgent{background:var(--red-50);color:var(--urgent)} .pill.high{background:#fff0e3;color:var(--high)}
.pill.normal{background:var(--brand-50);color:var(--normal)} .pill.low{background:#f0f2f5;color:var(--low)}
.pill.ok{background:var(--green-50);color:var(--green)} .pill.late{background:var(--red-50);color:var(--red)}
.pill.warn{background:var(--amber-50);color:var(--amber)} .pill.admin{background:#f1e9ff;color:#6b3fd1}
.pill.grey{background:#f0f2f5;color:#667085}

/* task cards */
.tasks{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.task{display:block;padding:14px 14px 12px 16px;position:relative;overflow:hidden;text-decoration:none;color:inherit;cursor:pointer}
.task::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--normal)}
.task.p-urgent::before{background:var(--urgent)} .task.p-high::before{background:var(--high)} .task.p-low::before{background:var(--low)}
.task.closed{opacity:.8} .task.closed::before{background:var(--green)}
.task.unseen{background:linear-gradient(90deg,#f3f7ff,#fff 60%)}
.task .t{font-weight:600;font-size:15.5px;line-height:1.3;margin:0 0 6px;word-break:break-word}
.task .meta{display:flex;flex-wrap:wrap;gap:6px 12px;font-size:12.5px;color:var(--muted);align-items:center}
.task .meta span{display:inline-flex;align-items:center;gap:4px}
.task .meta svg.i{width:14px;height:14px}
.task .foot{display:flex;align-items:center;gap:8px;margin-top:10px}
.due{font-weight:600;font-size:12.5px}
.due.over{color:var(--red)} .due.soon{color:var(--amber)} .due.ok{color:var(--green)}
.ticks{color:#98a2b3;font-size:12px;font-weight:700;letter-spacing:-2px}
.ticks.seen{color:#1a9bef}
.closebtn{margin-left:auto;background:var(--green);color:#fff;border:0;border-radius:8px;padding:7px 14px;font-weight:700;font-size:13px;display:inline-flex;align-items:center;gap:5px;cursor:pointer}
.closebtn svg.i{width:15px;height:15px;stroke-width:3}
.newdot{width:8px;height:8px;border-radius:50%;background:var(--brand);display:inline-block}

/* detail */
.detail h2{font-size:19px;margin:6px 0 10px;line-height:1.3;word-break:break-word}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 14px;font-size:14px;margin-top:10px}
.kv dt{color:var(--muted)} .kv dd{margin:0;font-weight:500}
.desc{white-space:pre-wrap;background:#f8fafc;border-radius:10px;padding:12px;margin-top:12px;font-size:14.5px;word-break:break-word}
.timeline{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.ev{display:flex;gap:10px}
.ev .dot{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;flex:none;background:#eef1f6;color:#667085}
.ev .dot svg.i{width:16px;height:16px}
.ev.remark .dot{background:var(--brand-50);color:var(--brand)} .ev.closed .dot{background:var(--green-50);color:var(--green)}
.ev.reopened .dot{background:var(--amber-50);color:var(--amber)}
.ev .bubble{flex:1;min-width:0}
.ev .who{font-size:13px;font-weight:600}
.ev .when{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.ev .txt{margin-top:3px;white-space:pre-wrap;font-size:14.5px;word-break:break-word}
.ev.remark .txt,.ev.closed .txt:not(:empty){background:#f4f7fc;border-radius:4px 12px 12px 12px;padding:8px 11px;display:inline-block;max-width:100%}
.replybar{position:fixed;left:0;right:0;bottom:calc(var(--nav-h) + var(--safe-b));z-index:19;background:#fff;border-top:1px solid var(--line);padding:8px 10px;display:flex;gap:8px;align-items:flex-end}
.replybar textarea{flex:1;border:1px solid #cfd6e1;border-radius:20px;padding:10px 14px;min-height:42px;max-height:120px;resize:none;outline:none}
.replybar .send{width:44px;height:44px;border-radius:50%;border:0;background:var(--brand);color:#fff;display:grid;place-items:center;cursor:pointer;flex:none}

/* dashboard */
.kpis{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(min-width:600px){.kpis{grid-template-columns:repeat(4,1fr)}}
.kpi{padding:14px}
.kpi .n{font-size:26px;font-weight:700;line-height:1.1}
.kpi .l{font-size:12.5px;color:var(--muted);margin-top:2px}
.kpi.red .n{color:var(--red)} .kpi.green .n{color:var(--green)}
.ptable{width:100%;border-collapse:collapse;font-size:13.5px}
.ptable th{font-size:11.5px;text-transform:uppercase;color:var(--muted);font-weight:600;text-align:right;padding:10px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
.ptable th:first-child,.ptable td:first-child{text-align:left}
.ptable td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
.ptable tr:last-child td{border-bottom:0}
.ptable td.nm{white-space:normal;font-weight:600}
.bar{height:6px;background:#eef1f6;border-radius:3px;overflow:hidden;margin-top:4px;min-width:60px}
.bar i{display:block;height:100%;border-radius:3px}
.scroll-x{overflow-x:auto}

/* team */
.member{display:flex;gap:12px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);cursor:pointer}
.member:last-child{border-bottom:0}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--brand-50);color:var(--brand);display:grid;place-items:center;font-weight:700;flex:none;font-size:14px}
.member.off{opacity:.5}
.member .nm{font-weight:600}
.member .sub{font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dotline{display:inline-flex;align-items:center;gap:5px}
.dotline::before{content:"";width:7px;height:7px;border-radius:50%;background:#c4cad4}
.dotline.on::before{background:var(--green)}
table.preview{width:100%;border-collapse:collapse;font-size:13px}
table.preview td,table.preview th{padding:7px 6px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
table.preview tr.bad td{background:var(--red-50)}

/* alerts */
.alert-item{display:flex;gap:12px;padding:13px 14px;border-bottom:1px solid var(--line);cursor:pointer}
.alert-item:last-child{border-bottom:0}
.alert-item.unread{background:#f5f8ff}
.alert-item .ic{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;flex:none}
.alert-item .ic svg.i{width:18px;height:18px}
.k-task_assigned .ic,.k-task_reopened .ic{background:var(--brand-50);color:var(--brand)}
.k-reply .ic,.k-task_closed .ic{background:var(--green-50);color:var(--green)}
.k-followup .ic,.k-due_soon .ic{background:var(--amber-50);color:var(--amber)}
.k-sla_breach .ic{background:var(--red-50);color:var(--red)}
.alert-item .tt{font-weight:600;font-size:14px;word-break:break-word}
.alert-item .bd{font-size:13px;color:var(--muted);word-break:break-word}
.alert-item .tm{font-size:11.5px;color:#98a2b3;margin-top:2px}

/* modal (bottom sheet) */
.backdrop{position:fixed;inset:0;background:rgba(16,24,40,.45);z-index:50;display:flex;align-items:flex-end;justify-content:center;animation:fade .15s}
.sheet{background:#fff;width:100%;max-width:560px;border-radius:18px 18px 0 0;padding:8px 18px calc(18px + var(--safe-b));max-height:92vh;overflow-y:auto;animation:up .2s ease-out}
@media(min-width:600px){.backdrop{align-items:center}.sheet{border-radius:18px}}
.sheet .grab{width:38px;height:4px;background:#d0d5dd;border-radius:2px;margin:4px auto 12px}
.sheet h3{margin:0 0 4px;font-size:18px}
.sheet .actions{display:flex;gap:10px;margin-top:18px}
.sheet .actions .btn{flex:1}
@keyframes fade{from{opacity:0}} @keyframes up{from{transform:translateY(40px);opacity:.5}}

.toast{position:fixed;left:50%;top:calc(var(--top-h) + 10px);transform:translateX(-50%) translateY(-12px);background:#1d2939;color:#fff;padding:11px 18px;border-radius:10px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:100;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.banner{background:var(--amber-50);color:#7a4a00;border-radius:10px;padding:10px 12px;font-size:13.5px;margin-bottom:12px;display:flex;gap:8px;align-items:flex-start}
.searchbox{position:relative;margin-top:10px}
.searchbox input{padding-left:38px}
.searchbox svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:18px;height:18px;stroke:#98a2b3}