:root {
  --container-width: 980px;
}

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  margin: 0;
  background: #f6f7fb;
  color: #111;
}

header {
  background: #0f172a;
  color: white;
  padding: 14px 0;
}

.container {
  width: min(var(--container-width), calc(100% - 32px));
  margin: 0 auto;
}

a { color: #1d4ed8; text-decoration: none; }
a:hover { text-decoration: underline; }

.card {
  background: white;
  border-radius: 10px;
  padding: 16px;
  box-shadow: 0 1px 2px rgba(0,0,0,.06);
  margin: 14px 0;
}

.grid {
  display: grid;
  gap: 12px;
}

.grid.two {
  grid-template-columns: 1fr 1fr;
}

label { display: block; font-weight: 600; margin: 10px 0 6px; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="date"], textarea, select {
  width: 100%;
  padding: 10px;
  border: 1px solid #d0d5dd;
  border-radius: 8px;
  box-sizing: border-box;
  background: white;
}

textarea { min-height: 110px; }

.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid #0f172a;
  background: #0f172a;
  color: white;
  cursor: pointer;
}

.btn.secondary {
  background: white;
  color: #0f172a;
}

.btn.danger {
  background: #b91c1c;
  border-color: #b91c1c;
}

.hint { color: #475467; font-size: 0.92rem; }
.error { color: #b91c1c; }
.success { color: #15803d; }

table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  text-align: left;
  padding: 10px;
  border-bottom: 1px solid #e5e7eb;
  vertical-align: top;
}

nav a { color: white; margin-right: 12px; }
nav a:hover { text-decoration: underline; }

footer {
  padding: 22px 0;
  color: #667085;
  font-size: 0.9rem;
}