:root {
  --bg: #f0f6ff;
  --white: #ffffff;
  --text: #0f1c35;
  --muted: #5a6e8c;
  --faint: #97afc8;
  --blue: #2563eb;
  --blue-light: #eff6ff;
  --blue-border: #bfdbfe;
  --blue-dark: #1d4ed8;
  --table-head: #4a90d9;
  --ok: #15803d;
  --err: #b91c1c;
  --bd: #d6e8ff;
  --radius: 12px;
  --t: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ── Password gate ── */
.gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(150deg, #1d4ed8 0%, #2563eb 45%, #0ea5e9 100%);
}

.gc {
  width: 100%;
  max-width: 420px;
  background: var(--white);
  border-radius: 18px;
  padding: 32px 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18);
}

.gc h1 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.gc .sub {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.gc label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
}

.gc input[type=password] {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--bd);
  border-radius: 9px;
  font-size: 0.95rem;
  outline: none;
}

.gc input[type=password]:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.ge {
  min-height: 1.2em;
  color: var(--err);
  font-size: 0.85rem;
  margin-top: 8px;
}

.ga {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

/* ── App shell ── */
.topbar {
  background: linear-gradient(150deg, #1d4ed8 0%, #2563eb 100%);
  color: #fff;
  padding: 20px 24px;
}

.topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.topbar h1 {
  font-size: 1.15rem;
  font-weight: 800;
}

.topbar p {
  font-size: 0.82rem;
  opacity: 0.85;
  margin-top: 4px;
}

.top-actions {
  display: flex;
  gap: 8px;
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.panel {
  background: var(--white);
  border: 1.5px solid var(--bd);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 2px 12px rgba(37, 99, 235, 0.06);
}

.panel h2 {
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
}

/* ── Terminal table ── */
.term-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
}

.term-search {
  flex: 1;
  min-width: 180px;
  padding: 8px 12px;
  border: 1px solid var(--bd);
  border-radius: 8px;
  font-size: 0.875rem;
}

.term-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--bd);
  border-radius: 8px;
}

.term-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.term-table thead th {
  background: var(--table-head);
  color: #fff;
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}

.term-table tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid #eef4ff;
  vertical-align: middle;
}

.term-table tbody tr {
  cursor: pointer;
  transition: background var(--t);
}

.term-table tbody tr:hover {
  background: var(--blue-light);
}

.term-table tbody tr.selected {
  background: #dbeafe;
}

.term-table tbody tr.selected td:first-child {
  box-shadow: inset 3px 0 0 var(--blue);
}

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--muted);
}

.status-dot::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #94a3b8;
}

.status-dot.online::before {
  background: var(--blue);
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--muted);
}

.page-btn {
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--bd);
  border-radius: 6px;
  background: var(--white);
  cursor: pointer;
  font-size: 0.82rem;
}

.page-btn:hover:not(:disabled) {
  border-color: var(--blue);
  color: var(--blue);
}

.page-btn.active {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.page-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.selected-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 8px 12px;
  background: var(--blue-light);
  border: 1px solid var(--blue-border);
  border-radius: 8px;
  font-size: 0.85rem;
}

.selected-badge strong {
  color: var(--blue);
}

/* ── Tabs ── */
.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tab {
  padding: 8px 16px;
  border: 1.5px solid var(--bd);
  border-radius: 999px;
  background: var(--white);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  transition: all var(--t);
}

.tab.active {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.tab-pane { display: none; }
.tab-pane.active { display: block; }

label.field-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
}

input[type=text],
input[type=number],
textarea,
input[type=file] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--bd);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
}

textarea {
  min-height: 160px;
  resize: vertical;
  line-height: 1.6;
}

.field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
  margin-top: 12px;
}

.field-row .field {
  flex: 1;
  min-width: 140px;
}

.field-row .field.narrow {
  flex: 0 0 120px;
}

.preview-img {
  max-width: 100%;
  max-height: 220px;
  border-radius: 8px;
  border: 1px solid var(--bd);
  margin-top: 10px;
  display: none;
}

.preview-img.visible {
  display: block;
}

.hint {
  font-size: 0.78rem;
  color: var(--faint);
  margin-top: 8px;
  line-height: 1.55;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border: none;
  border-radius: 9px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: opacity var(--t), transform var(--t);
}

.btn:hover { opacity: 0.92; }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-p {
  background: var(--blue);
  color: #fff;
}

.btn-s {
  background: #e4e4e7;
  color: var(--text);
}

.btn-g {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-lg {
  padding: 12px 20px;
  font-size: 0.95rem;
}

.print-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.log-box {
  margin-top: 14px;
  padding: 12px;
  background: #fafafa;
  border: 1px solid var(--bd);
  border-radius: 8px;
  font-size: 0.8rem;
  word-break: break-all;
  white-space: pre-wrap;
  display: none;
}

.log-box.visible { display: block; }
.log-box.ok { color: var(--ok); background: #f0fdf4; border-color: #bbf7d0; }
.log-box.err { color: var(--err); background: #fef2f2; border-color: #fecaca; }

canvas { display: none; }

@media (max-width: 640px) {
  .topbar { padding: 16px; }
  .wrap { padding: 16px 12px 48px; }
  .panel { padding: 16px; }
  .term-table thead th:nth-child(2),
  .term-table tbody td:nth-child(2) { display: none; }
}