*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:Arial,sans-serif;
  background:#f5f7fb;
  color:#1e293b;
}

a{
  color:#2563eb;
  text-decoration:none;
}

.auth{
  min-height:100vh;
  display:grid;
  place-items:center;
  background:#f3f6fb;
}

.box,
.panel,
section{
  background:#ffffff;
  border:1px solid #dbe3ef;
  border-radius:14px;
  padding:22px;
  box-shadow:0 3px 12px rgba(15,23,42,.05);
}

.box{
  width:min(520px,92vw);
}

input{
  display:block;
  width:100%;
  padding:12px;
  margin:10px 0;
  background:#ffffff;
  color:#1e293b;
  border:1px solid #cbd5e1;
  border-radius:8px;
}

input:focus{
  border-color:#3b82f6;
  outline:none;
  box-shadow:0 0 0 3px rgba(59,130,246,.12);
}

button{
  background:#2563eb;
  color:white;
  border:0;
  border-radius:8px;
  padding:12px 18px;
  font-weight:bold;
  cursor:pointer;
}

button:hover{
  background:#1d4ed8;
}

.bad,
.good{
  padding:10px;
  border-radius:8px;
  margin:10px 0;
}

.bad{
  background:#fee2e2;
  color:#991b1b;
  border:1px solid #fecaca;
}

.good{
  background:#dcfce7;
  color:#166534;
  border:1px solid #bbf7d0;
}

header{
  height:62px;
  padding:0 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:#ffffff;
  border-bottom:1px solid #dbe3ef;
  box-shadow:0 1px 4px rgba(15,23,42,.04);
}

.layout{
  display:grid;
  grid-template-columns:210px 1fr;
  min-height:calc(100vh - 62px);
}

nav{
  background:#ffffff;
  padding:16px;
  border-right:1px solid #dbe3ef;
}

nav a{
  display:block;
  padding:10px;
  border-radius:8px;
  color:#475569;
}

nav a.on,
nav a:hover{
  background:#eaf1ff;
  color:#1d4ed8;
  font-weight:bold;
}

main{
  padding:24px;
}

.wide{
  max-width:1100px;
  margin:auto;
}

.cards{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:12px;
  margin:18px 0;
}

.cards section small{
  display:block;
  color:#64748b;
}

.cards strong{
  display:block;
  font-size:25px;
  margin-top:7px;
  color:#0f172a;
}

.panel{
  margin:14px 0;
}

h1,h2,h3{
  color:#0f172a;
}

p{
  color:#475569;
}

table{
  width:100%;
  border-collapse:collapse;
  background:#ffffff;
}

td,
th{
  padding:10px;
  border-bottom:1px solid #e2e8f0;
  text-align:left;
}

th{
  color:#475569;
  background:#f8fafc;
}

td{
  color:#334155;
}

@media(max-width:700px){
  .layout{
    grid-template-columns:1fr;
  }

  nav{
    display:none;
  }

  .cards{
    grid-template-columns:repeat(2,1fr);
  }
}