:root {
  --bg: #071019;
  --panel: #26334a;
  --panel-strong: #344a68;
  --line: #111827;
  --text: #f7fbff;
  --muted: #b9c7da;
  --gold: #ffe58b;
  --blue: #8bd7ff;
  --danger: #ff7a90;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  background:
    linear-gradient(180deg, rgba(7, 16, 25, 0.35), rgba(7, 16, 25, 0.88)),
    url("assets/battle/battle-background.png") center / cover fixed no-repeat,
    var(--bg);
}

.admin-shell {
  width: min(960px, calc(100% - 28px));
  margin: 0 auto;
  padding: 28px 0;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  text-shadow: 3px 3px 0 var(--line);
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.admin-card {
  border: 4px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  box-shadow: 6px 6px 0 rgba(8, 13, 23, 0.75);
}

.admin-card.wide {
  grid-column: 1 / -1;
}

.admin-field {
  display: grid;
  gap: 8px;
  margin-top: 14px;
  color: var(--muted);
  font-weight: 900;
}

.admin-field input {
  width: 100%;
  border: 3px solid var(--line);
  border-radius: 4px;
  padding: 10px 12px;
  color: var(--text);
  background: #111827;
  font: inherit;
  font-weight: 900;
}

.admin-button {
  display: inline-grid;
  place-items: center;
  min-height: 42px;
  margin-top: 14px;
  border: 3px solid var(--line);
  border-radius: 4px;
  padding: 8px 14px;
  color: #111827;
  background: linear-gradient(180deg, #d9f4ff 0 50%, var(--blue) 50% 100%);
  box-shadow: 4px 4px 0 var(--line);
  font: inherit;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

.admin-button:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--line);
}

.admin-button.ghost {
  margin-top: 0;
}

.admin-button.danger {
  background: linear-gradient(180deg, #ffd1dc 0 50%, var(--danger) 50% 100%);
}

.tool-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.admin-note,
.admin-message {
  margin: 12px 0 0;
  color: var(--muted);
  font-weight: 800;
  line-height: 1.5;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.status-grid span {
  border: 3px solid var(--line);
  border-radius: 4px;
  padding: 10px;
  background: #111827;
  color: var(--muted);
  font-weight: 900;
}

.status-grid b {
  display: block;
  margin-top: 4px;
  color: var(--gold);
  font-size: 20px;
}

@media (max-width: 720px) {
  .admin-header,
  .admin-grid {
    grid-template-columns: 1fr;
  }

  .admin-header {
    display: grid;
  }

  .status-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}