:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #6b7280;
  --line: #d8dee8;
  --accent: #0f8b8d;
  --accent-dark: #0b6f71;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  width: min(960px, 100%);
  margin: 0 auto;
  padding: 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.topbar p {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 18px;
}

button {
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  font-weight: 800;
  cursor: pointer;
}

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

#refreshBtn {
  width: 44px;
  font-size: 22px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.stats article,
.rules,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.stats article {
  padding: 14px;
}

.stats span,
label span,
small {
  color: var(--muted);
}

.stats strong {
  display: block;
  margin-top: 4px;
  font-size: 24px;
}

.rules {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  padding: 12px;
  margin-bottom: 14px;
}

.rules div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.rules span {
  color: var(--muted);
}

.panel {
  padding: 14px;
  margin-bottom: 14px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-title span {
  color: var(--muted);
  font-size: 13px;
}

.form {
  display: grid;
  gap: 10px;
}

label {
  display: grid;
  gap: 6px;
}

input {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  font: inherit;
}

.list {
  display: grid;
  gap: 8px;
}

.item,
.empty,
.notice {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfd;
}

.item {
  display: grid;
  gap: 6px;
  overflow-wrap: anywhere;
}

.item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.item-row span {
  color: var(--muted);
  font-size: 13px;
}

a {
  color: var(--accent-dark);
}

@media (max-width: 640px) {
  .stats,
  .rules {
    grid-template-columns: 1fr;
  }
}