*{box-sizing:border-box}
:root{
  --blue:#0b5bd3;
  --dark:#0a3f96;
  --bg:#f4f7fb;
  --card:#fff;
  --border:#dfe7f2;
  --text:#172033;
  --muted:#6f7b8f;
}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;
  background:var(--bg);
  color:var(--text);
}
a{text-decoration:none;color:inherit}

.layout{min-height:100vh}

.sidebar{
  position:fixed;
  left:0;
  top:0;
  bottom:0;
  width:280px;
  background:linear-gradient(180deg,var(--dark),#072f72);
  color:white;
  padding:30px 20px;
  overflow-y:auto;
  z-index:10;
}

.brand{
  font-weight:800;
  font-size:19px;
  margin-bottom:34px;
  line-height:1.3;
}
.brand small{
  display:block;
  font-weight:400;
  opacity:.72;
  margin-top:5px;
  font-size:13px;
}

.nav{
  display:flex;
  flex-direction:column;
  gap:7px;
}
.nav a{
  display:block;
  padding:13px 15px;
  border-radius:12px;
  opacity:.88;
  font-weight:650;
}
.nav a:hover,.nav a.active{
  background:rgba(255,255,255,.14);
  opacity:1;
}

.main{
  margin-left:280px;
  padding:40px 52px 70px;
  width:calc(100% - 280px);
  max-width:1700px;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:24px;
  margin-bottom:32px;
}
.topbar h1{
  margin:0 0 6px;
  font-size:31px;
}
.userbox{
  background:#fff;
  border:1px solid var(--border);
  padding:12px 16px;
  border-radius:14px;
  min-width:180px;
}

.grid{display:grid;gap:24px}
.stats{
  grid-template-columns:repeat(2,minmax(0,1fr));
  margin-bottom:30px;
}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:28px;
  box-shadow:0 10px 28px rgba(20,50,90,.06);
}

.stat .label{
  font-size:13px;
  color:var(--muted);
}
.stat .value{
  font-size:34px;
  font-weight:850;
  margin-top:10px;
}

.table-wrap{
  width:100%;
  overflow-x:auto;
}
.table{
  width:100%;
  border-collapse:collapse;
  min-width:900px;
}
.table th,.table td{
  text-align:left;
  padding:18px 14px;
  border-bottom:1px solid var(--border);
  vertical-align:middle;
}
.table th{
  font-size:12px;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.04em;
}
.table tr:last-child td{border-bottom:0}

.badge{
  display:inline-block;
  padding:6px 10px;
  border-radius:999px;
  background:#eaf8f1;
  color:#178a57;
  font-size:12px;
  font-weight:700;
  white-space:nowrap;
}

.btn{
  display:inline-block;
  border:0;
  border-radius:10px;
  padding:11px 15px;
  background:var(--blue);
  color:#fff;
  font-weight:700;
  cursor:pointer;
}
.btn.secondary{
  background:#eaf2ff;
  color:var(--blue);
}

.form-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px 24px;
}
label{
  display:block;
  margin:0 0 7px;
  font-weight:650;
}
input,select{
  width:100%;
  padding:12px 13px;
  border:1px solid #cfd9e7;
  border-radius:10px;
  font:inherit;
  background:#fff;
}

.login-wrap{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:32px;
}
.login-card{
  width:min(500px,100%);
  background:#fff;
  border:1px solid var(--border);
  border-radius:22px;
  padding:34px;
  box-shadow:0 18px 50px rgba(20,50,90,.1);
}
.login-card label{margin:18px 0 7px}

.alert{
  padding:13px 15px;
  border-radius:11px;
  margin:16px 0;
  background:#fff2f2;
  color:#a52b36;
}
.muted{color:var(--muted)}

.section-gap{margin-top:28px}

@media(max-width:1100px){
  .main{padding:32px 30px 55px}
  .stats{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}

@media(max-width:760px){
  .sidebar{
    position:relative;
    width:100%;
    height:auto;
  }
  .nav{
    flex-direction:row;
    overflow-x:auto;
    padding-bottom:4px;
  }
  .nav a{white-space:nowrap}
  .main{
    margin-left:0;
    width:100%;
    padding:24px 18px 44px;
  }
  .topbar{
    flex-direction:column;
    align-items:stretch;
  }
  .userbox{width:100%}
  .card{padding:22px}
}