:root {
  color-scheme: dark;
  --bg: #0d1015;
  --panel: #151922;
  --panel-2: #1b202b;
  --line: #2a3140;
  --text: #e6e9ee;
  --muted: #8e97a6;
  --blue: #4c8dff;
  --green: #36c98f;
  --amber: #f0b44c;
  --red: #ff6b6b;
  --purple: #a78bfa;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  background: radial-gradient(1200px 500px at 20% -10%, #1a2336 0%, var(--bg) 55%);
  color: var(--text);
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

button, input, select { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--red); margin: 10px 0 0; white-space: pre-wrap; }
.warn { color: var(--amber); font-size: 12px; margin: 8px 0; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(380px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .45);
}

.login-card h1 { margin: 0 0 4px; font-size: 24px; letter-spacing: .5px; }
.login-card > .muted { margin: 0 0 22px; }

label { display: block; color: var(--muted); font-size: 12px; }

input, select {
  width: 100%;
  margin-top: 6px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #0f131b;
  color: var(--text);
  outline: none;
}

input:focus, select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(76, 141, 255, .16); }

.login-card label + input { margin-bottom: 14px; }

button {
  border: 0;
  border-radius: 9px;
  padding: 9px 15px;
  background: var(--blue);
  color: #fff;
  font-weight: 600;
  transition: filter .15s, transform .15s;
}

button:hover { filter: brightness(1.08); }
button:active { transform: scale(.98); }
button:disabled { opacity: .55; cursor: default; }
button.secondary { background: var(--panel-2); color: var(--text); border: 1px solid var(--line); }
button.danger { background: #3a1c22; color: #ff9c9c; border: 1px solid #61303a; }
button.warn-btn { background: #3a301c; color: #ffd48a; border: 1px solid #615030; }

.login-card button[type="submit"] { width: 100%; margin-top: 4px; padding: 11px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(13, 16, 21, .82);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar h1 { margin: 0; font-size: 19px; letter-spacing: .4px; }
.topbar p { margin: 2px 0 0; }

.layout {
  max-width: 1440px;
  margin: 0 auto;
  padding: 22px 28px 48px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
}

.stat .num { font-size: 26px; font-weight: 700; line-height: 1.2; }
.stat .label { color: var(--muted); font-size: 12px; margin-top: 3px; }
.stat.active .num { color: var(--green); }
.stat.unused .num { color: var(--blue); }
.stat.expired .num { color: var(--amber); }
.stat.suspended .num { color: var(--purple); }
.stat.revoked .num { color: var(--red); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  margin-bottom: 16px;
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-head h2 { margin: 0; font-size: 16px; }
.panel-head p { margin: 0; }

.form-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.form-row label { min-width: 120px; }
.form-row label.grow { flex: 1 1 240px; }
.form-row button { margin-bottom: 1px; }

.generate-result {
  border: 1px solid #39445a;
  background: #111722;
  border-radius: 12px;
  padding: 14px;
  margin-top: 4px;
}

.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

.result-head > div { display: flex; gap: 8px; }

#generatedKeys {
  margin: 0;
  padding: 12px;
  max-height: 320px;
  overflow: auto;
  border-radius: 9px;
  background: #0b0f16;
  border: 1px solid var(--line);
  color: #cfe0ff;
  font: 13px/1.7 ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
  white-space: pre-wrap;
  word-break: break-all;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
}

table { width: 100%; border-collapse: collapse; min-width: 1080px; }

th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
  white-space: nowrap;
}

th {
  background: #121722;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  position: sticky;
  top: 0;
}

tbody tr:hover { background: #191f2b; }
tbody tr:last-child td { border-bottom: 0; }

td.note-cell {
  max-width: 190px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.actions-col { min-width: 250px; }
td.actions { display: flex; gap: 5px; flex-wrap: wrap; }
td.actions button { padding: 5px 9px; font-size: 12px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid transparent;
}

.badge.active { color: #8ef0c5; background: rgba(54, 201, 143, .13); border-color: rgba(54, 201, 143, .28); }
.badge.unused { color: #9dc1ff; background: rgba(76, 141, 255, .13); border-color: rgba(76, 141, 255, .28); }
.badge.expired { color: #ffd28a; background: rgba(240, 180, 76, .13); border-color: rgba(240, 180, 76, .28); }
.badge.suspended { color: #c9b8ff; background: rgba(167, 139, 250, .13); border-color: rgba(167, 139, 250, .28); }
.badge.revoked { color: #ff9c9c; background: rgba(255, 107, 107, .13); border-color: rgba(255, 107, 107, .28); }

.reason {
  display: block;
  max-width: 190px;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--muted);
  font-size: 11px;
}

.mono { font-family: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace; }
.device { color: #b9c6da; font-size: 12px; }

.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 12px;
}

.logs {
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0f131b;
  padding: 10px 12px;
}

.log-line {
  padding: 6px 0;
  border-bottom: 1px dashed #242c3a;
  color: #b9c3d2;
  font-size: 12px;
  display: flex;
  gap: 10px;
}

.log-line:last-child { border-bottom: 0; }
.log-line .time { color: var(--muted); flex: none; }
.log-line .action { color: #9dc1ff; flex: none; min-width: 64px; }

.foot {
  text-align: center;
  color: #606a79;
  font-size: 11px;
  padding: 18px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  z-index: 100;
  max-width: min(560px, 88vw);
  padding: 11px 18px;
  border-radius: 10px;
  background: #202736;
  border: 1px solid #39445a;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .45);
  color: var(--text);
  font-size: 13px;
}

.toast.error { border-color: #61303a; color: #ffb4b4; }

@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(3, 1fr); }
  .topbar, .layout { padding-left: 16px; padding-right: 16px; }
  .panel-head { display: block; }
  .panel-head p { margin-top: 4px; }
}

@media (max-width: 560px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .form-row label, .form-row label.grow { flex: 1 1 100%; min-width: 0; }
  .form-row button { flex: 1 1 100%; }
  .result-head { display: block; }
  .result-head > div { margin-top: 8px; }
}