:root{
  --bg:#f4f5f9; --surface:#ffffff; --border:#e5e7eb;
  --text:#111827; --muted:#6b7280;
  --primary:#0f172a; --primary2:#1e293b; --accent:#2563eb; --accent-light:#eff6ff;
  --success:#16a34a; --warning:#d97706; --danger:#dc2626;
  --radius:12px; --shadow:0 1px 2px rgba(0,0,0,.05),0 1px 3px rgba(0,0,0,.06);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
#app{min-height:100vh;display:flex;flex-direction:column}
button,input,select,textarea{font-family:inherit;font-size:14px}
a{color:inherit}

/* ---------- Login ---------- */
.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at top,#1e293b,#0f172a 60%);padding:16px}
.login-card{background:var(--surface);border-radius:16px;padding:36px 32px;width:100%;max-width:380px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.login-card h1{font-size:20px;margin:0 0 4px}
.login-card p.sub{color:var(--muted);margin:0 0 24px;font-size:13px}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.brand-badge{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#2563eb,#0f172a);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
.brand-name{font-weight:700;font-size:16px}
.login-logo{display:flex;justify-content:center;margin-bottom:6px}
.login-logo img{height:84px;width:auto}
.sidebar-logo{height:30px;width:auto;flex-shrink:0}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px;font-weight:600}
.field input,.field select,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:#fff;outline:none;transition:border .15s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;border-radius:8px;border:1px solid transparent;font-weight:600;cursor:pointer;font-size:13.5px;transition:.15s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#1d4ed8}
.btn-dark{background:var(--primary);color:#fff}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{background:#f3f4f6}
.btn-danger{background:#fee2e2;color:var(--danger)}
.btn-block{width:100%}
.error-box{background:#fef2f2;color:var(--danger);border:1px solid #fecaca;padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:14px}
.demo-hint{margin-top:18px;font-size:12px;color:var(--muted);background:#f9fafb;border-radius:8px;padding:10px 12px;line-height:1.6}

/* ---------- Shell layout ---------- */
.shell{display:flex;flex:1;min-height:100vh}
.sidebar{width:220px;background:#000000;color:#e5e7eb;display:flex;flex-direction:column;flex-shrink:0}
.sidebar .brand{padding:18px 16px;border-bottom:1px solid rgba(255,255,255,.08);margin:0}
.sidebar .brand-name{color:#fff}
.nav{flex:1;padding:12px 8px;display:flex;flex-direction:column;gap:2px}
.nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;color:#cbd5e1;text-decoration:none;font-size:13.5px;font-weight:500}
.nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav a.active{background:var(--accent);color:#fff}
.nav-icon{width:18px;text-align:center}
.nav-external{margin-left:auto;font-size:11px;color:#94a3b8}
.sidebar-footer{padding:12px;border-top:1px solid rgba(255,255,255,.08)}
.user-chip{display:flex;align-items:center;gap:8px;font-size:12.5px;color:#e5e7eb;margin-bottom:8px}
.avatar{width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;flex-shrink:0}
.role-badge{font-size:10px;text-transform:uppercase;letter-spacing:.03em;background:rgba(255,255,255,.1);padding:2px 6px;border-radius:4px;margin-left:auto}

.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.topbar h2{margin:0;font-size:17px}
.content{flex:1;padding:20px 24px;overflow:auto}
.hamburger{display:none;background:none;border:none;font-size:20px;cursor:pointer;color:var(--text)}

/* ---------- Cards / grid ---------- */
.grid{display:grid;gap:16px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.kpi-card .label{font-size:12px;color:var(--muted);font-weight:600;margin-bottom:6px;text-transform:uppercase;letter-spacing:.02em}
.kpi-card .value{font-size:22px;font-weight:700}
.kpi-card .sub{font-size:12px;color:var(--muted);margin-top:4px}
.section-title{font-size:14px;font-weight:700;margin:24px 0 12px}
.section-title:first-child{margin-top:0}

/* ---------- Bar chart (hand-rolled, no lib) ---------- */
.bars{display:flex;align-items:flex-end;gap:10px;height:160px;padding-top:10px}
.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px}
.bar{width:100%;max-width:40px;border-radius:6px 6px 0 0;background:linear-gradient(180deg,#3b82f6,#1d4ed8);min-height:2px}
.bar-label{font-size:10.5px;color:var(--muted);text-align:center;line-height:1.3}
.bar-value{font-size:10.5px;font-weight:700}

.funnel{display:flex;flex-direction:column;gap:8px}
.funnel-row{display:flex;align-items:center;gap:10px;font-size:12.5px}
.funnel-label{width:110px;flex-shrink:0;color:var(--muted)}
.funnel-track{flex:1;background:#f1f5f9;border-radius:6px;height:20px;overflow:hidden}
.funnel-fill{height:100%;background:var(--accent);border-radius:6px;display:flex;align-items:center;padding-left:8px;color:#fff;font-weight:600;font-size:11px;white-space:nowrap;min-width:2px}
.funnel-count{width:40px;text-align:right;font-weight:600}

/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}
th{background:#f9fafb;color:var(--muted);font-weight:600;font-size:11.5px;text-transform:uppercase;letter-spacing:.02em;position:sticky;top:0}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:#f9fafb}
.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;background:#eef2ff;color:#4338ca}
.tag-hot{background:#fef2f2;color:#dc2626}
.tag-new{background:#ecfdf5;color:#059669}

.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.toolbar input[type=search],.toolbar input[type=text]{flex:1;min-width:180px;padding:9px 12px;border:1px solid var(--border);border-radius:8px}
.spacer{flex:1}

/* ---------- Kanban ---------- */
.kanban{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px;align-items:flex-start}
.kcol{background:#eef1f6;border-radius:10px;min-width:230px;max-width:230px;flex-shrink:0;display:flex;flex-direction:column;max-height:calc(100vh - 220px)}
.kcol-head{padding:10px 12px;font-size:12.5px;font-weight:700;display:flex;justify-content:space-between;align-items:center;color:var(--primary2)}
.kcol-count{background:rgba(0,0,0,.08);border-radius:999px;padding:1px 7px;font-size:11px}
.kcol-body{padding:6px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;flex:1}
.kcard{background:#fff;border-radius:8px;padding:10px;box-shadow:var(--shadow);cursor:grab;border:1px solid var(--border)}
.kcard.dragging{opacity:.4}
.kcol-body.drag-over{background:#dbeafe}
.kcard-title{font-size:12.5px;font-weight:700;margin-bottom:4px}
.kcard-meta{font-size:11px;color:var(--muted);display:flex;justify-content:space-between}
.kcard-value{font-weight:700;color:var(--accent);font-size:12px;margin-top:6px}

/* ---------- Forms / modal ---------- */
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}
.modal{background:#fff;border-radius:14px;padding:22px;width:100%;max-width:440px;max-height:90vh;overflow:auto}
.modal h3{margin:0 0 16px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.fab{position:fixed;bottom:20px;right:20px;display:none}

.empty-state{text-align:center;color:var(--muted);padding:40px 20px;font-size:13px}
.pill-row{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.pill{padding:6px 12px;border-radius:999px;border:1px solid var(--border);background:#fff;font-size:12.5px;cursor:pointer;font-weight:600;color:var(--muted)}
.pill.active{background:var(--primary);color:#fff;border-color:var(--primary)}

.task-item{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid var(--border)}
.task-item:last-child{border-bottom:none}
.task-item.done .task-title{text-decoration:line-through;color:var(--muted)}
.task-title{font-weight:600;font-size:13px}
.task-meta{font-size:11.5px;color:var(--muted);margin-top:2px}
.badge-type{font-size:10px;background:#f1f5f9;padding:2px 6px;border-radius:4px;margin-right:6px;font-weight:700;color:#475569}
.task-actions{display:flex;gap:4px;flex-shrink:0}
.icon-btn{border:1px solid var(--border);background:#fff;border-radius:6px;width:26px;height:26px;cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center;padding:0}
.icon-btn:hover{background:#f3f4f6}

.act-item{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid var(--border);font-size:12.5px}
.act-item:last-child{border-bottom:none}
.act-icon{width:26px;height:26px;border-radius:50%;background:var(--accent-light);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:12px;flex-shrink:0}

.activity-list-preview{max-height:180px;overflow:auto;border:1px solid var(--border);border-radius:8px;padding:0 10px}
.modal.modal-lg{max-width:640px}
.act-item-lg{display:flex;gap:12px;align-items:flex-start;padding:12px 4px;border-bottom:1px solid var(--border);font-size:13.5px}
.act-item-lg:last-child{border-bottom:none}
.act-item-lg .act-icon{width:32px;height:32px;font-size:14px}
.act-content{line-height:1.5}

.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--primary);color:#fff;padding:10px 18px;border-radius:8px;font-size:13px;z-index:100;box-shadow:var(--shadow)}

/* ---------- Responsive / mobile ---------- */
@media (max-width: 860px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;bottom:0;z-index:40;transform:translateX(-100%);transition:transform .2s;box-shadow:0 0 30px rgba(0,0,0,.3)}
  .sidebar.open{transform:translateX(0)}
  .hamburger{display:block}
  .content{padding:14px}
  .topbar{padding:12px 14px}
  th,td{padding:8px 10px}
}
@media (max-width: 520px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .kcol{min-width:200px;max-width:200px}
}

/* ---------- Sidebar overlay (mobile) ---------- */
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:35}
.sidebar-overlay.show{display:block}
.sidebar-close{display:none;background:none;border:none;color:#fff;font-size:18px;cursor:pointer;padding:4px 8px}
@media (max-width: 860px){
  .sidebar-close{display:block}
  .sidebar .brand{display:flex;justify-content:space-between;align-items:center}
}

/* ---------- Period picker ---------- */
.period-picker{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.period-picker select,.period-picker input{padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:#fff}

/* ---------- Progress bar (KPI %) ---------- */
.progress-block{margin-bottom:14px}
.progress-head{display:flex;justify-content:space-between;font-size:12px;margin-bottom:6px}
.progress-head b{font-size:13px}
.progress-track{background:#f1f5f9;border-radius:999px;height:10px;overflow:hidden}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#2563eb,#1d4ed8)}
.progress-fill.over{background:linear-gradient(90deg,#16a34a,#15803d)}
.progress-fill.low{background:linear-gradient(90deg,#f59e0b,#d97706)}

/* ---------- Team cards (CEO dashboard) ---------- */
.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.team-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.team-card h4{margin:0 0 10px;font-size:14px;display:flex;justify-content:space-between;align-items:center}
.team-card .region{font-size:11px;color:var(--muted);font-weight:500}
.team-card.company{border:1.5px solid var(--accent);background:linear-gradient(180deg,#fff,var(--accent-light))}

.status-breakdown{display:flex;flex-direction:column;gap:8px}
.status-row{display:flex;align-items:center;gap:10px;font-size:12.5px}
.status-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.status-name{width:130px;flex-shrink:0;color:var(--muted)}
.status-track{flex:1;background:#f1f5f9;border-radius:6px;height:16px;overflow:hidden}
.status-fill{height:100%;border-radius:6px}
.status-count{width:30px;text-align:right;font-weight:700}

/* ---------- Team indicator ---------- */
.team-indicator{margin:0 12px 10px;padding:8px 10px;background:rgba(37,99,235,.18);border:1px solid rgba(37,99,235,.35);border-radius:8px;color:#dbeafe;font-size:11.5px}
.team-indicator b{color:#fff}
.topbar-team-badge{background:var(--accent-light);color:var(--accent);font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px}

/* ---------- Co-owner / chia sẻ khách hàng ---------- */
.coowner-chip{display:inline-flex;align-items:center;gap:6px;background:#f1f5f9;border-radius:999px;padding:4px 6px 4px 10px;font-size:12px;margin:2px}
.coowner-chip.primary{background:var(--accent-light);color:var(--accent);font-weight:600}

/* ---------- Lịch (Calendar) ---------- */
.calendar-nav{display:flex;align-items:center;gap:8px}
.calendar-month-label{font-weight:700;font-size:15px;min-width:110px;text-align:center}
.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.calendar-grid-head{margin-bottom:6px}
.calendar-headcell{text-align:center;font-size:11.5px;color:var(--muted);font-weight:700;padding:4px 0}
.calendar-cell{border:1px solid var(--border);border-radius:8px;padding:6px;min-height:88px;cursor:pointer;background:#fff;transition:.15s;display:flex;flex-direction:column;gap:4px}
.calendar-cell:hover{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.calendar-cell.muted{background:#fafafa;color:#c7ccd4}
.calendar-cell.muted .calendar-daynum{color:#c7ccd4}
.calendar-cell.today{border-color:var(--accent);background:var(--accent-light)}
.calendar-daynum{font-size:12.5px;font-weight:700;color:var(--text)}
.cal-item-list{display:flex;flex-direction:column;gap:2px;overflow:hidden}
.cal-item{font-size:10.5px;padding:1px 4px;border-left:3px solid #64748b;background:#f8fafc;border-radius:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cal-item.done{opacity:.45;text-decoration:line-through}
.cal-dot{display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:3px}
.cal-more{font-size:10px;color:var(--muted);margin-top:auto}
@media (max-width:720px){
  .calendar-cell{min-height:56px;padding:4px}
  .cal-item{display:none}
  .calendar-daynum{font-size:11.5px}
}
.coowner-chip button{border:none;background:rgba(0,0,0,.08);border-radius:50%;width:16px;height:16px;line-height:16px;text-align:center;cursor:pointer;font-size:10px;padding:0}

/* ---------- Tổng hoạt động (CEO Dashboard) ---------- */
.act-totals-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:14px}
.act-total-card{text-align:center;padding:10px 6px}
.act-total-label{font-size:12px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.03em}
.act-total-value{font-size:30px;font-weight:800;color:var(--text);margin:4px 0}
.act-total-change{font-size:12.5px;font-weight:700}
.act-total-change.up{color:var(--success)}
.act-total-change.down{color:var(--danger)}

/* ---------- Leaderboard hoạt động (CEO Dashboard) ---------- */
.lb-legend{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:14px;font-size:12px;color:var(--muted)}
.lb-legend span{display:inline-flex;align-items:center;gap:5px}
.lb-legend i{width:9px;height:9px;border-radius:2px;display:inline-block}
.lb-list{display:flex;flex-direction:column;gap:10px}
.lb-row{display:flex;align-items:center;gap:10px}
.lb-name{width:130px;flex-shrink:0;font-size:12.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb-track-wrap{flex:1;background:#f8fafc;border-radius:5px;height:18px}
.lb-track{display:flex;height:100%;border-radius:5px;overflow:hidden;min-width:2px}
.lb-seg{height:100%}
.lb-total{width:34px;text-align:right;font-weight:700;font-size:12.5px;flex-shrink:0}
@media (max-width:720px){
  .lb-name{width:90px;font-size:11.5px}
}

/* ---------- AI Trợ lý ---------- */
.ai-chat-card{display:flex;flex-direction:column;height:min(560px,70vh)}
.ai-messages{flex:1;overflow-y:auto;padding:4px 2px;display:flex;flex-direction:column;gap:10px}
.ai-msg{display:flex}
.ai-msg.user{justify-content:flex-end}
.ai-msg.assistant{justify-content:flex-start}
.ai-bubble{max-width:78%;padding:10px 14px;border-radius:12px;font-size:13.5px;line-height:1.55}
.ai-bubble.user{background:var(--accent);color:#fff;border-bottom-right-radius:3px}
.ai-bubble.assistant{background:#f1f5f9;color:var(--text);border-bottom-left-radius:3px}
.ai-bubble p{margin:0 0 6px}
.ai-bubble p:last-child{margin-bottom:0}
.ai-bubble ul{margin:0 0 6px;padding-left:18px}
.ai-bubble li{margin-bottom:2px}
.ai-input-row{display:flex;gap:8px;margin-top:12px;flex-shrink:0}
.ai-input-row input{flex:1;padding:10px 12px;border:1px solid var(--border);border-radius:8px}
.ai-advice-box{font-size:13.5px;line-height:1.6;min-height:60px}
.ai-advice-box p{margin:0 0 8px}
.ai-advice-box ul{margin:0 0 8px;padding-left:18px}

.poster-thumbs{display:flex;flex-wrap:wrap;gap:8px;margin:-4px 0 14px}
.poster-thumb{position:relative;width:64px;height:64px;border-radius:8px;overflow:hidden;border:1px solid var(--border)}
.poster-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.poster-thumb-remove{position:absolute;top:2px;right:2px;width:18px;height:18px;border-radius:50%;border:none;background:rgba(0,0,0,.65);color:#fff;font-size:10px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}

.poster-slot{border:1px dashed var(--border);border-radius:10px;padding:10px;margin-bottom:12px}
.poster-slot-label{font-size:12.5px;font-weight:600;margin-bottom:8px}
.poster-slot-label .req{color:var(--danger);font-weight:700;margin-left:2px}
.poster-slot-label .opt{color:var(--muted);font-weight:400;font-size:11px;margin-left:4px}
.poster-slot-hint{font-size:11px;color:var(--muted);margin-top:6px}
.poster-slot-preview{position:relative;width:100%;height:110px;border-radius:8px;overflow:hidden;background:var(--bg);display:flex;align-items:center;justify-content:center;margin-bottom:8px}
.poster-slot-preview img{width:100%;height:100%;object-fit:cover;display:block}
.poster-slot-preview .empty{font-size:11px;color:var(--muted);padding:0 10px;text-align:center}
.poster-slot-remove{position:absolute;top:4px;right:4px;width:20px;height:20px;border-radius:50%;border:none;background:rgba(0,0,0,.65);color:#fff;font-size:11px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}
.poster-qr-note{font-size:11px;color:var(--accent);background:var(--accent-light);border-radius:8px;padding:8px 10px;margin-top:-2px;margin-bottom:12px}