:root{
  --bg:#f6f7fb;
  --panel:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e5e7eb;
  --accent:#2563eb;
  --accent2:#7c3aed;
  --danger:#dc2626;
  --shadow: 0 10px 30px rgba(15,23,42,.08);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;
  background: radial-gradient(1200px 600px at 20% 10%, rgba(37,99,235,.16), transparent 60%),
              radial-gradient(900px 500px at 80% 0%, rgba(124,58,237,.14), transparent 55%),
              var(--bg);
  color:var(--text);
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.muted{color:var(--muted)}
body, input, textarea, select{font-weight:400}

.app{display:flex; min-height:100vh}
.sidebar{
  width:260px;
  padding:18px 16px;
  background:linear-gradient(180deg,#ffffff, #fbfbff);
  border-right:1px solid var(--border);
  position:sticky;
  top:0;
  height:100vh;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.brand{display:flex; gap:10px; align-items:center; padding:10px 10px}
.logo{
  width:40px; height:40px; border-radius:12px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff; font-weight:900;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 10px 25px rgba(37,99,235,.25);
}
.brand-name{font-weight:900; letter-spacing:.2px}
.brand-sub{font-size:12px; color:var(--muted); margin-top:2px}
.nav{display:flex; flex-direction:column; gap:6px; padding:0 6px}
.nav-item{
  display:flex; align-items:center; gap:10px;
  padding:10px 10px;
  border-radius:12px;
  border:1px solid transparent;
  color:var(--text);
  font-weight:600;
}
.nav-item:hover{
  background:rgba(37,99,235,.06);
  border-color:rgba(37,99,235,.18);
  text-decoration:none;
}
.nav-item.active{
  background:linear-gradient(135deg, rgba(37,99,235,.14), rgba(124,58,237,.12));
  border-color:rgba(37,99,235,.25);
}
.nav-item.danger{color:var(--danger)}
.sidebar-footer{margin-top:auto; padding:0 6px}

.main{flex:1; min-width:0}
.main-top{
  position:sticky; top:0; z-index:2;
  padding:18px 24px;
  background:rgba(246,247,251,.75);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}
.title{font-size:18px; font-weight:900}
.subtitle{font-size:13px; margin-top:4px}
.wrap{max-width:1200px; margin:0 auto; padding:18px 24px}

.card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px;
  box-shadow: var(--shadow);
}
.grid{display:grid; grid-template-columns: 1fr; gap:14px}
@media(min-width:900px){ .grid.two{grid-template-columns: 1fr 1fr} }

table{width:100%; border-collapse:collapse}
th,td{padding:10px 8px; border-bottom:1px solid var(--border); vertical-align:top}
th{color:var(--muted); font-weight:700; text-align:left; font-size:12px; text-transform:uppercase; letter-spacing:.06em}
.row{display:flex; gap:10px; flex-wrap:wrap}

.btn{
  display:inline-block; padding:10px 12px; border-radius:12px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff; font-weight:700; border:0; cursor:pointer;
  box-shadow: 0 10px 20px rgba(37,99,235,.18);
}
.btn.secondary{background:#fff; color:var(--text); border:1px solid var(--border); box-shadow:none}
.btn.danger{background:#fff; color:var(--danger); border:1px solid rgba(220,38,38,.25); box-shadow:none}

input,textarea,select{
  width:100%; padding:10px 10px; border-radius:12px; border:1px solid var(--border);
  background:#fff; color:var(--text);
  outline:none;
}
input:focus,textarea:focus,select:focus{
  border-color:rgba(37,99,235,.45);
  box-shadow: 0 0 0 4px rgba(37,99,235,.10);
}
textarea{min-height:90px}
label{display:block; margin:10px 0 6px; color:var(--muted); font-size:13px; font-weight:700}
.flash{padding:10px 12px; border-radius:12px; border:1px solid rgba(37,99,235,.25); background:rgba(37,99,235,.08)}
.flash.err{background:rgba(220,38,38,.08); border-color:rgba(220,38,38,.25)}
.kpi{display:flex; gap:10px; flex-wrap:wrap}
.kpi .box{padding:10px 12px; border-radius:14px; border:1px solid var(--border); background:rgba(255,255,255,.8)}
.badge{display:inline-block; padding:3px 8px; border-radius:999px; border:1px solid var(--border); color:var(--muted); font-size:12px; background:#fff}

.pill{
  display:inline-flex;
  align-items:center;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--text);
  font-weight:600;
  text-decoration:none;
}
.pill:hover{
  text-decoration:none;
  border-color:rgba(37,99,235,.35);
  background:rgba(37,99,235,.05);
}