:root {
  --bg: #0b1020;
  --card: #121a36;
  --text: #ffffff;
  --accent: #1a4dff;
}

.light {
  --bg: #f4f6fc;
  --card: #ffffff;
  --text: #000000;
  --accent: #1a4dff;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.hidden {
  display: none;
}

header {
  background: var(--accent);
  padding: 16px;
  text-align: center;
}

.top-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.login {
  max-width: 300px;
  margin: 100px auto;
  background: var(--card);
  padding: 20px;
  border-radius: 10px;
  text-align: center;
}

main {
  max-width: 800px;
  margin: auto;
  padding: 20px;
}

.form-section, .notice {
  background: var(--card);
  padding: 14px;
  border-radius: 10px;
  margin-bottom: 12px;
}

input, textarea, select, button {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 6px;
  border: none;
}

button {
  background: var(--accent);
  color: white;
  cursor: pointer;
}

.notice small {
  opacity: 0.7;
}

.important {
  border-left: 5px solid gold;
}