:root {
  color-scheme: dark;
  --bg: #07101f;
  --panel: #0d1b34;
  --panel-2: #102443;
  --text: #e7f4ff;
  --muted: #89a3bf;
  --accent: #22c7f4;
  --danger: #ff6b74;
  --border: rgba(58, 183, 230, 0.28);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 "Microsoft YaHei", system-ui, sans-serif;
}
h1, h2 { margin: 0 0 14px; }
h2 { font-size: 18px; }
form { display: grid; gap: 12px; }
label { display: grid; gap: 5px; color: var(--muted); }
input, textarea, button {
  font: inherit;
}
input:not([type="checkbox"]), textarea, select {
  width: 100%;
  padding: 9px 11px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: #071528;
  color: var(--text);
}
textarea { resize: vertical; }
fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}
fieldset label {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
  margin-right: 12px;
}
button {
  border: 0;
  border-radius: 7px;
  padding: 9px 14px;
  background: var(--accent);
  color: #03101b;
  font-weight: 700;
  cursor: pointer;
}
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 9px 14px;
  border-radius: 7px;
  background: var(--accent);
  color: #03101b;
  font-weight: 700;
  text-decoration: none;
}
.button-link.secondary {
  background: #173555;
  color: var(--text);
}
button.secondary {
  background: #173555;
  color: var(--text);
}
button.danger {
  background: var(--danger);
  color: #200407;
}
button.tiny { padding: 4px 8px; font-size: 12px; }
.login-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: min(420px, 100%);
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
}
.layout { display: grid; gap: 18px; padding: 18px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.panel {
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  background: #09172c;
  border-bottom: 1px solid var(--border);
}
.topbar form { display: block; }
.muted { color: var(--muted); margin-left: 10px; }
.notice, .warning-panel {
  background: #172b48;
}
.search-form {
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-form input {
  flex: 1;
}
.search-form button,
.search-form .button-link {
  flex: 0 0 auto;
}
.search-hint {
  margin: 10px 0 0;
}
.query-summary {
  margin: 12px 0 0;
  color: #9ceaff;
}
.announcement-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.announcement-form label:last-of-type,
.announcement-form textarea,
.announcement-form button {
  grid-column: 1 / -1;
}
.announcement-create {
  margin-top: 14px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #09172c;
}
.announcement-editor {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(137, 163, 191, 0.2);
}
.announcement-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
  color: var(--muted);
}
.inline-check {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  align-self: end;
  min-height: 38px;
  color: var(--text);
}
.inline-check input {
  width: auto;
}
.error {
  color: #ffb0b5;
  border: 1px solid rgba(255, 107, 116, 0.5);
}
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 980px; }
th, td {
  padding: 9px 8px;
  border-bottom: 1px solid rgba(137, 163, 191, 0.16);
  text-align: left;
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; }
.note-cell {
  max-width: 260px;
  white-space: normal;
  overflow-wrap: anywhere;
  color: #b9cce0;
}
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: #163e57;
  color: #9ceaff;
}
.device {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 5px;
}
.device form { display: block; }
.revoked { color: var(--danger); text-decoration: line-through; }
.actions { display: flex; gap: 6px; }
.actions form { display: block; }
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .announcement-form { grid-template-columns: 1fr; }
  .announcement-form label:last-of-type,
  .announcement-form textarea,
  .announcement-form button {
    grid-column: auto;
  }
}

.activation-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% 0%, rgba(34, 199, 244, 0.14), transparent 38%),
    var(--bg);
}

.activation-wrap {
  width: min(820px, calc(100% - 32px));
  margin: 36px auto;
  display: grid;
  gap: 18px;
}

.activation-hero {
  padding: 34px;
}

.activation-hero h1 {
  font-size: clamp(30px, 5vw, 48px);
  letter-spacing: 0.02em;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.lead {
  max-width: 650px;
  margin: 0;
  color: #bfd1e4;
  font-size: 15px;
}

.steps {
  margin: 0;
  padding-left: 24px;
}

.steps li {
  margin-bottom: 16px;
  padding-left: 8px;
}

.steps strong,
.steps span {
  display: block;
}

.steps strong {
  margin-bottom: 4px;
  color: var(--text);
  font-size: 15px;
}

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

.activation-note {
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.compact-panel p {
  margin: 0;
}