:root {
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: #fff;
  color: #111;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.5;
}
body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 2rem 1rem;
}
main {
  width: 100%;
  max-width: 28rem;
}
h1 {
  font-size: 1.4rem;
  font-weight: 650;
  margin: 0 0 1rem;
}
form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
label { font-size: 0.95rem; }
input[type="password"],
input[type="text"] {
  width: 100%;
  padding: 0.7rem 0.75rem;
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  border: 1px solid #ccc;
  border-radius: 8px;
  background: #fff;
}
button, .btn {
  appearance: none;
  border: 0;
  background: #111;
  color: #fff;
  padding: 0.7rem 1rem;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}
button:hover, .btn:hover { background: #333; }
.error {
  color: #8a1f1f;
  background: #fdecec;
  border: 1px solid #f3c4c4;
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  margin: 0 0 1rem;
}
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 2rem;
}
th, td {
  text-align: left;
  padding: 0.55rem 0.4rem;
  border-bottom: 1px solid #e6e6e6;
  word-break: break-word;
}
th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: #555; }
h2 { font-size: 1.1rem; margin: 0 0 0.75rem; }
ol.history { padding-left: 1.2rem; margin: 0; }
ol.history li { margin: 0 0 0.7rem; }
.time { display: block; color: #555; font-size: 0.85rem; }
.panel { max-width: 40rem; }