:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1f2430;
  --text: #e8ecf1;
  --muted: #9aa4b2;
  --primary: #4f8cff;
  --primary-hover: #3a74e0;
  --danger: #ef5350;
  --success: #26a69a;
  --border: #2a3140;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ── Layout ── */
.shell {
  max-width: 1600px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.main-content {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ── Header ── */
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding: 0;
  border: none;
}

.stamp { display: none; }
.title-wrap h1 br { display: none; }

h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.2px;
  margin: 0;
}

.subtitle {
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
}

h2 {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
}

.muted {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.dim { color: var(--muted); }
.small { font-size: 12px; }
.expire-warn { color: #ffb74d; font-weight: 600; }

/* ── Stats cards ── */
.panel.stats {
  margin-bottom: 16px;
  background: transparent;
  border: none;
  padding: 0;
}

.panel.stats .panel-head {
  margin-bottom: 10px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}

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

.stat b {
  font-size: 24px;
  font-weight: 700;
  margin-top: 4px;
  display: block;
  line-height: 1.2;
}

.span-two { grid-column: span 1; }

/* ── Panels (no card wrapper) ── */
.panel {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-head {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 0;
}

/* ── Two-column: generate + registry ── */
.grid-two {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

@media (min-width: 900px) {
  .grid-two {
    grid-template-columns: 300px 1fr;
    gap: 16px;
  }
}

/* Generate panel */
.grid-two > .panel:first-child {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

/* ── Forms ── */
.form-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
}

input, textarea {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #11151d;
  color: var(--text);
  font-size: 14px;
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s;
}

input:focus, textarea:focus {
  border-color: var(--primary);
}

textarea {
  min-height: 72px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}

/* ── Buttons ── */
.btn {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  transition: opacity 0.15s, background 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  white-space: nowrap;
}

.btn:hover { opacity: 0.88; }
.btn:active { opacity: 0.75; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
  background: var(--primary);
  border-color: #2f6ff0;
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--muted);
}
.btn-ghost:hover { color: var(--text); }

/* Table action buttons */
.btn-edit {
  font-size: 12px;
  padding: 4px 8px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-danger {
  font-size: 12px;
  padding: 4px 8px;
  background: var(--danger);
  border-color: #d63f3b;
  color: #fff;
}

.btn-ok {
  font-size: 12px;
  padding: 4px 8px;
  background: var(--success);
  border-color: #1e887e;
  color: #fff;
}

.btn-delete {
  font-size: 12px;
  padding: 4px 8px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
}
.btn-delete:hover { color: var(--danger); border-color: var(--danger); }

/* ── Table ── */
.table-wrap {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 1000px;
}

th, td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 600;
  background: #141821;
}

td { color: var(--text); }

tr:last-child td { border-bottom: none; }
tr:hover td { background: #151a24; }

/* ── Toolbar ── */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.toolbar input {
  width: 260px;
  max-width: 70vw;
}

.pager {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.pager .btn {
  padding: 6px 10px;
  font-size: 12px;
  min-width: 36px;
}

/* ── Badges ── */
.badge {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  border: none;
  display: inline-block;
}

.badge-ok { color: #4fd98a; background: rgba(79, 217, 138, 0.1); }
.badge-danger { color: #ff8080; background: rgba(255, 128, 128, 0.1); }
.badge-warn { color: #ffb74d; background: rgba(255, 183, 77, 0.1); }

/* ── Message ── */
.msg { font-size: 13px; color: var(--success); font-weight: 500; }
.msg.error { color: var(--danger); }
.msg.ok { color: var(--success); }

/* ── Login ── */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-card {
  width: min(400px, 92vw);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 32px 32px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
}

.login-card h2 {
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 6px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.login-form input {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
}

.login-form .btn {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  background: var(--primary);
  border-color: #2f6ff0;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
}
.login-form .btn:hover { background: var(--primary-hover); }

/* ── Modal ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.6);
  z-index: 999;
}

.modal-backdrop.open { display: flex; }

.modal {
  width: min(420px, 92vw);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-header h2 { margin: 0; font-size: 16px; }

.modal-close {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
  transition: color 0.15s;
}
.modal-close:hover { color: var(--text); }

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
}
.checkbox-row input {
  width: auto;
  margin: 0;
  cursor: pointer;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .shell { padding: 12px; }

  .top {
    flex-direction: column;
    align-items: flex-start;
  }

  h1 { font-size: 18px; }

  .stat-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .stat { padding: 10px; }
  .stat b { font-size: 20px; }

  .grid-two { grid-template-columns: 1fr; }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar input {
    width: 100%;
    max-width: 100%;
  }

  .pager {
    justify-content: center;
    flex-wrap: wrap;
  }

  th, td { padding: 6px 4px; font-size: 11px; }

  .btn { padding: 6px 10px; font-size: 12px; }

  .modal { width: min(360px, 94vw); padding: 14px; }
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }

  .form-grid { gap: 10px; }

  .login-card { padding: 28px 20px 24px; }
}

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }