:root {
  --bg: #f4f6f2;
  --card-bg: #ffffff;
  --text: #1a1a1a;
  --accent: #2e7d32;
  --accent-dark: #1b5e20;
  --border: #d0d5cc;
  --danger: #c62828;
  font-size: 20px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 24px 16px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 24px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  text-align: center;
}

h1 {
  font-size: 1.6rem;
  margin: 0 0 8px;
  color: var(--accent-dark);
}

.subtitle {
  font-size: 1.1rem;
  color: #555;
  margin-bottom: 24px;
}

label {
  display: block;
  font-size: 1.1rem;
  font-weight: bold;
  margin: 20px 0 8px;
  text-align: left;
}

select, input[type="date"], input[type="number"], input[type="password"], input[type="text"] {
  width: 100%;
  font-size: 1.4rem;
  padding: 14px;
  border: 2px solid var(--border);
  border-radius: 10px;
  text-align: center;
}

button {
  width: 100%;
  font-size: 1.4rem;
  font-weight: bold;
  padding: 18px;
  margin-top: 28px;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

button:active { background: var(--accent-dark); }

button.secondary {
  background: transparent;
  color: var(--accent-dark);
  border: 2px solid var(--accent);
  margin-top: 12px;
}

.message {
  margin-top: 16px;
  font-size: 1.1rem;
  min-height: 1.4em;
}

.message.error { color: var(--danger); font-weight: bold; }
.message.success { color: var(--accent-dark); font-weight: bold; }

.dept-name {
  font-size: 2rem;
  font-weight: bold;
  color: var(--accent-dark);
  margin: 8px 0 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 1rem;
}

th, td {
  border-bottom: 1px solid var(--border);
  padding: 10px 6px;
  text-align: right;
}

th:first-child, td:first-child { text-align: left; }

tfoot td {
  font-weight: bold;
  font-size: 1.15rem;
  border-top: 2px solid var(--accent);
}

.wide-card { max-width: 900px; }

.toolbar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 16px;
}

.toolbar select, .toolbar input {
  width: auto;
  font-size: 1.1rem;
  padding: 10px;
}

.logout-link {
  display: inline-block;
  margin-top: 20px;
  font-size: 1rem;
  color: #777;
  text-decoration: underline;
  cursor: pointer;
}