:root {
  --tblr-font-sans-serif: "IBM Plex Sans", ui-sans-serif, system-ui,
    -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --dm-font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
    Consolas, "Liberation Mono", monospace;

  /* Palette (light) */
  --dm-bg-0: #f4f6fb;
  --dm-bg-1: #ffffff;
  --dm-ink: rgba(12, 16, 24, 0.92);
  --dm-muted: rgba(12, 16, 24, 0.58);
  --dm-line: rgba(12, 16, 24, 0.12);
  --dm-accent: #0ea5e9;
  --dm-accent-2: #f59e0b;

  /* Surfaces */
  --dm-surface: rgba(255, 255, 255, 0.86);
  --dm-surface-2: rgba(255, 255, 255, 0.96);
  --dm-border: rgba(12, 16, 24, 0.12);
  --dm-shadow: 0 24px 55px rgba(15, 23, 42, 0.14);
  --dm-shadow-inset: 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
  --dm-focus: rgba(14, 165, 233, 0.22);
}

.dm-mono,
code,
pre {
  font-family: var(--dm-font-mono);
}

.dm-secret {
  word-break: break-all;
}

body {
  color: var(--dm-ink);
  background: radial-gradient(
      1100px 680px at 14% -10%,
      rgba(14, 165, 233, 0.14),
      transparent 62%
    ),
    radial-gradient(
      900px 520px at 112% 8%,
      rgba(245, 158, 11, 0.14),
      transparent 58%
    ),
    linear-gradient(180deg, var(--dm-bg-1) 0%, var(--dm-bg-0) 100%);
}

.dm-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(
      to right,
      rgba(12, 16, 24, 0.04) 1px,
      transparent 1px
    ),
    linear-gradient(
      to bottom,
      rgba(12, 16, 24, 0.035) 1px,
      transparent 1px
    );
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 18% 0%, black 0%, transparent 64%);
  opacity: 0.7;
}

.dm-navbar {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--dm-border);
}

.dm-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.dm-mark {
  width: 14px;
  height: 14px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--dm-accent), var(--dm-accent-2));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.7) inset,
    0 0 0 8px rgba(14, 165, 233, 0.08);
}

.dm-title {
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}

.dm-badge {
  border: 1px solid var(--dm-border);
}

.dm-pretitle {
  color: var(--dm-muted);
}

.dm-pagetitle {
  line-height: 1.15;
}

.dm-subline {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.dm-dot {
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: rgba(12, 16, 24, 0.25);
}

.dm-page .card,
.dm-login-page .card {
  background: var(--dm-surface);
  border: 1px solid var(--dm-border);
  box-shadow: var(--dm-shadow), var(--dm-shadow-inset);
}

.dm-node-card {
  position: relative;
  overflow: hidden;
}

.dm-node-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      850px 230px at 35% 0%,
      rgba(14, 165, 233, 0.12),
      transparent 55%
    ),
    radial-gradient(
      650px 220px at 100% 10%,
      rgba(245, 158, 11, 0.1),
      transparent 60%
    );
  opacity: 0;
  transition: opacity 220ms ease;
  pointer-events: none;
}

.dm-node-card:hover::before {
  opacity: 1;
}

.dm-node-card--offline {
  opacity: 0.9;
  filter: saturate(0.8);
}

.dm-kv {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 6px 12px;
  font-size: 0.875rem;
}

.dm-kv .k {
  color: var(--dm-muted);
}

.dm-kv .v {
  color: rgba(12, 16, 24, 0.88);
}

.dm-pre {
  font-family: var(--dm-font-mono);
  font-size: 12px;
  line-height: 1.5;
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid var(--dm-border);
  border-radius: 10px;
  padding: 12px;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}

.dm-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 2px 4px;
  border-top: 1px solid var(--dm-border);
}

/* --- Unified overlays (modal / dropdown / popover) --- */

.modal-backdrop {
  --bs-backdrop-bg: #0b1220;
  --bs-backdrop-opacity: 0.48;
}

.modal-content,
.dropdown-menu {
  background: var(--dm-surface-2);
  border: 1px solid var(--dm-border);
  box-shadow: var(--dm-shadow), var(--dm-shadow-inset);
  color: var(--dm-ink);
}

.modal-header,
.modal-footer {
  border-color: var(--dm-border);
}

.modal-title {
  letter-spacing: 0.02em;
}

.btn-close {
  filter: none;
  opacity: 0.6;
}

.btn-close:hover {
  opacity: 1;
}

.form-control,
.form-select {
  background: rgba(15, 23, 42, 0.03);
  border-color: var(--dm-border);
  color: var(--dm-ink);
}

.form-control::placeholder {
  color: rgba(12, 16, 24, 0.42);
}

.form-control:focus,
.form-select:focus {
  border-color: rgba(14, 165, 233, 0.55);
  box-shadow: 0 0 0 0.25rem var(--dm-focus);
}

.btn {
  border-color: var(--dm-border);
}

.btn:focus-visible {
  box-shadow: 0 0 0 0.25rem var(--dm-focus);
}

.btn-primary {
  background: linear-gradient(
      180deg,
      rgba(14, 165, 233, 0.18),
      rgba(14, 165, 233, 0.08)
    ),
    rgba(255, 255, 255, 0.92);
  border-color: rgba(14, 165, 233, 0.42);
  color: rgba(12, 16, 24, 0.92);
}

.btn-primary:hover {
  background: linear-gradient(
      180deg,
      rgba(14, 165, 233, 0.24),
      rgba(14, 165, 233, 0.1)
    ),
    rgba(255, 255, 255, 0.96);
  border-color: rgba(14, 165, 233, 0.58);
}

.alert {
  background: rgba(15, 23, 42, 0.03);
  border: 1px solid var(--dm-border);
  color: var(--dm-ink);
}

.alert-danger {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.28);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.32);
}

.alert-info {
  background: rgba(14, 165, 233, 0.1);
  border-color: rgba(14, 165, 233, 0.28);
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.28);
}

@media (prefers-reduced-motion: reduce) {
  .dm-node-card::before {
    transition: none;
  }
}