:root {
  --primary: #2b6cb0;
  --danger: #c53030;
  --bg: #f5f6f8;
  --border: #d9dde3;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", sans-serif;
  background: var(--bg);
  color: #1a202c;
}

.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
}

.container.wide {
  max-width: 960px;
}

h1, h2, h3 { line-height: 1.4; }

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
  margin-top: 12px;
}

input[type="text"], input[type="password"], input[type="number"],
input[type="date"], input[type="time"], select {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

button, .btn {
  display: inline-block;
  padding: 12px 18px;
  font-size: 16px;
  border-radius: 8px;
  border: none;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  margin-top: 12px;
  text-decoration: none;
  text-align: center;
}

button.secondary, .btn.secondary {
  background: #718096;
}

button.danger, .btn.danger {
  background: var(--danger);
}

.errorlist { color: var(--danger); padding-left: 18px; }

.messages { list-style: none; padding: 0; }
.messages li { padding: 10px; border-radius: 8px; margin-bottom: 8px; }
.messages li.success { background: #c6f6d5; }
.messages li.error { background: #fed7d7; }

table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 14px; }
th, td { border-bottom: 1px solid var(--border); padding: 8px; text-align: left; }

.muted { color: #718096; font-size: 14px; }

nav.admin-nav a { margin-right: 12px; }