:root{
  --bg:#f6f7fb;--panel:#ffffff;--panel2:#f2f4f8;--text:#111827;--muted:#6b7280;
  --border:#e5e7eb;--accent:#111827;--accentText:#ffffff;--danger:#b42318;--warn:#b54708;
  --success:#067647;--radius:16px;
}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
button,input,select,textarea{font:inherit}button{cursor:pointer}
.hidden{display:none!important}.muted{color:var(--muted)}.tiny{font-size:12px}.full{width:100%}
.row{display:flex;align-items:center;gap:10px}.wrap{flex-wrap:wrap}.stack{display:grid;gap:14px}
.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px}
.auth-card{width:min(480px,100%);background:var(--panel);border:1px solid var(--border);border-radius:24px;padding:28px}
.brand-mark{width:52px;height:52px;border-radius:16px;background:var(--accent);color:white;display:grid;place-items:center;font-weight:800;margin-bottom:18px}
.brand-mark.small{width:38px;height:38px;border-radius:12px;margin:0}
h1,h2,h3,p{margin-top:0}.auth-card h1{margin-bottom:8px}
label{display:grid;gap:7px;font-size:14px;font-weight:600}
input,select,textarea{width:100%;border:1px solid var(--border);background:#fff;border-radius:12px;padding:11px 12px;color:var(--text);outline:none}
input:focus,select:focus,textarea:focus{border-color:#9ca3af;box-shadow:0 0 0 3px rgba(17,24,39,.06)}
.btn{border:1px solid var(--border);border-radius:12px;padding:10px 14px;background:white;color:var(--text);font-weight:700}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accentText)}
.btn.secondary{background:#eef2ff}.btn.ghost{background:transparent}
.btn.danger{color:var(--danger)}.btn.success{color:var(--success)}
.demo-box{margin-top:22px;padding-top:18px;border-top:1px solid var(--border);font-size:14px}
.app{min-height:100vh;display:grid;grid-template-columns:260px 1fr}
.sidebar{background:var(--panel);border-right:1px solid var(--border);padding:18px;display:flex;flex-direction:column;justify-content:space-between;gap:24px;position:sticky;top:0;height:100vh}
.logo-row{display:flex;align-items:center;gap:10px}.nav{display:grid;gap:6px;margin-top:28px}.nav-btn{text-align:left;border:0;background:transparent;padding:11px 12px;border-radius:12px;color:var(--muted);font-weight:700}
.nav-btn.active{background:var(--panel2);color:var(--text)}
.user-card{padding:12px;border-radius:14px;background:var(--panel2);margin-bottom:10px}
.main{min-width:0;padding:26px}.topbar{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px}
.topbar h2{margin-bottom:4px}.view{min-width:0}
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:20px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.kpi .label{font-size:13px;color:var(--muted)}.kpi .value{font-size:28px;font-weight:800;margin-top:6px}
.grid-2{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.section-title{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.section-title h3{margin:0}
.task-list{display:grid;gap:10px}.task-card{border:1px solid var(--border);border-radius:14px;padding:14px;background:#fff}
.task-card-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.task-card h4{margin:0 0 4px}.meta{font-size:13px;color:var(--muted)}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;background:var(--panel2);font-size:12px;font-weight:800}
.badge.overdue{color:var(--danger);background:#fff1f0}.badge.review{color:#7a2e0e;background:#fff7ed}.badge.done{color:var(--success);background:#ecfdf3}
.progress{height:8px;background:var(--panel2);border-radius:999px;overflow:hidden;margin-top:12px}.progress>span{display:block;height:100%;background:var(--accent)}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:14px;background:white}table{width:100%;border-collapse:collapse;min-width:760px}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--border);font-size:14px}th{font-size:12px;color:var(--muted);background:#fafafa}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}.toolbar input,.toolbar select{width:auto;min-width:160px}
dialog{border:0;border-radius:22px;padding:0;max-width:none;background:transparent}dialog::backdrop{background:rgba(17,24,39,.45)}
.modal-card{width:min(680px,calc(100vw - 24px));background:white;border-radius:22px;padding:20px;border:1px solid var(--border)}.modal-card.wide{width:min(900px,calc(100vw - 24px))}
.modal-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:18px}.modal-head h3{margin-bottom:4px}.icon-btn{border:0;background:var(--panel2);width:38px;height:38px;border-radius:12px;font-size:24px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.span-2{grid-column:span 2}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.detail-panel{border:1px solid var(--border);border-radius:14px;padding:14px}.timeline{display:grid;gap:10px}.timeline-item{padding-left:14px;border-left:2px solid var(--border);font-size:14px}.timeline-item strong{display:block}
textarea{resize:vertical}.empty{padding:28px;text-align:center;color:var(--muted);border:1px dashed var(--border);border-radius:14px;background:white}
.toast{position:fixed;right:18px;bottom:18px;background:#111827;color:#fff;padding:12px 14px;border-radius:12px;opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s;z-index:20}.toast.show{opacity:1;transform:translateY(0)}
.stat-row{display:grid;grid-template-columns:repeat(6,minmax(90px,1fr));gap:10px}.mini-stat{padding:12px;background:var(--panel2);border-radius:12px}.mini-stat b{display:block;font-size:20px}
.notice{padding:12px 14px;border:1px solid var(--border);border-radius:12px;background:#fffbeb;color:#7a5200;margin-bottom:14px}
@media(max-width:980px){.app{grid-template-columns:1fr}.sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--border)}.nav{display:flex;overflow:auto;margin-top:16px}.sidebar-footer{display:flex;gap:10px;align-items:center}.sidebar-footer .user-card{margin:0;flex:1}.main{padding:18px}.kpi-grid{grid-template-columns:repeat(2,1fr)}.grid-2,.grid-3,.detail-grid{grid-template-columns:1fr}.stat-row{grid-template-columns:repeat(3,1fr)}}
@media(max-width:620px){.auth-card{padding:20px}.topbar{align-items:stretch;flex-direction:column}.kpi-grid{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}.toolbar input,.toolbar select{width:100%}.main{padding:14px}.task-card-top{flex-direction:column}.modal-actions{flex-direction:column-reverse}.modal-actions .btn{width:100%}.stat-row{grid-template-columns:repeat(2,1fr)}}