:root {
  --bg0: #0f1a17;
  --ink: #e8f2ee;
  --muted: #9bb5ab;
  --line: rgba(232, 242, 238, 0.12);
  --accent: #3ecf8e;
  --accent-2: #f0b429;
  --danger: #ff6b6b;
  --off: #5a6e66;
  --panel: rgba(18, 34, 30, 0.82);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --font: "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg0);
}

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 500px at 10% -10%, rgba(62, 207, 142, 0.22), transparent 60%),
    radial-gradient(700px 420px at 90% 0%, rgba(240, 180, 41, 0.14), transparent 55%),
    linear-gradient(160deg, #0c1513 0%, #14241f 45%, #0f1a17 100%);
}

.app {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.25rem 0 3rem;
  display: grid;
  gap: 1.1rem;
}

.header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  animation: rise 0.5s ease both;
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 600;
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.sub {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  word-break: break-all;
}

.header-right {
  display: grid;
  gap: 0.45rem;
  justify-items: end;
}

.status-pill {
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.85rem;
  font-weight: 500;
}

.status-pill[data-state="connected"] {
  color: var(--accent);
  border-color: rgba(62, 207, 142, 0.35);
  background: rgba(62, 207, 142, 0.1);
}

.status-pill[data-state="connecting"],
.status-pill[data-state="reconnecting"] {
  color: var(--accent-2);
  border-color: rgba(240, 180, 41, 0.35);
  background: rgba(240, 180, 41, 0.1);
}

.status-pill[data-state="error"] {
  color: var(--danger);
  border-color: rgba(255, 107, 107, 0.35);
  background: rgba(255, 107, 107, 0.1);
}

.last-update {
  color: var(--muted);
  font-size: 0.8rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem 1.3rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  animation: rise 0.55s ease both;
}

h2 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 600;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.95rem;
}

.section-head code {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent-2);
}

details summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: "展开";
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 500;
}

details[open] summary::after {
  content: "收起";
}

details summary + * {
  margin-top: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem 1rem;
}

.span-2 {
  grid-column: span 2;
}

label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.28);
  color: var(--ink);
  padding: 0.7rem 0.85rem;
  outline: none;
}

textarea {
  resize: vertical;
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.45;
}

input:focus,
textarea:focus {
  border-color: rgba(62, 207, 142, 0.55);
  box-shadow: 0 0 0 3px rgba(62, 207, 142, 0.15);
}

.topics {
  margin-top: 1rem;
  display: grid;
  gap: 0.55rem;
}

.topics div {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  padding: 0.65rem 0.8rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed var(--line);
}

.topics span {
  color: var(--muted);
  font-size: 0.8rem;
  min-width: 2.5rem;
}

.topics code {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  word-break: break-all;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

button {
  border: 0;
  border-radius: 12px;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.primary {
  background: linear-gradient(135deg, #3ecf8e, #2aa86f);
  color: #062015;
}

button.ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
  border: 1px solid var(--line);
}

.status-text {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  animation: rise 0.55s ease both;
}

.kpi {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
}

.kpi-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.kpi-value {
  margin: 0.35rem 0 0;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.kpi-value small {
  margin-left: 0.2rem;
  font-size: 0.95rem;
  color: var(--muted);
  font-weight: 500;
}

.kpi-value.text {
  font-size: 1.15rem;
  font-weight: 600;
}

.io-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
}

.io-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.7rem 0.8rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.2);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.io-item.on {
  border-color: rgba(62, 207, 142, 0.35);
  background: rgba(62, 207, 142, 0.1);
}

.io-item .name {
  font-size: 0.88rem;
  font-weight: 500;
}

.io-item .dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--off);
  flex-shrink: 0;
}

.io-item.on .dot {
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(62, 207, 142, 0.18);
}

.io-item .state {
  font-size: 0.75rem;
  color: var(--muted);
  font-family: var(--mono);
}

.io-item.on .state {
  color: var(--accent);
}

.port-table-wrap {
  overflow-x: auto;
}

.port-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.port-table th,
.port-table td {
  text-align: left;
  padding: 0.7rem 0.6rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}

.port-table th {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.8rem;
}

.port-table td {
  font-family: var(--mono);
  font-size: 0.85rem;
}

.empty-cell {
  text-align: center !important;
  color: var(--muted);
  font-family: var(--font) !important;
  padding: 1.4rem 0.6rem !important;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}

.meta-list {
  margin: 0.85rem 0 0;
  display: grid;
  gap: 0.65rem;
}

.meta-list > div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
}

.meta-list dt {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.meta-list dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.88rem;
  word-break: break-all;
}

.publish .primary {
  margin-top: 0.85rem;
}

.messages summary span {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.85rem;
}

.log {
  display: grid;
  gap: 0.7rem;
  max-height: 36vh;
  overflow: auto;
  margin-bottom: 0.85rem;
}

.empty {
  color: var(--muted);
  padding: 1rem 0.25rem;
  text-align: center;
}

.item {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.85rem 0.95rem;
  background: rgba(0, 0, 0, 0.22);
}

.item-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  align-items: center;
  margin-bottom: 0.55rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.badge {
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
}

.badge.up {
  color: #7ee0b0;
  background: rgba(62, 207, 142, 0.12);
}

.badge.down {
  color: #ffd27a;
  background: rgba(240, 180, 41, 0.12);
}

.item pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.45;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 900px) {
  .kpi-row {
    grid-template-columns: 1fr 1fr;
  }

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

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

@media (max-width: 640px) {
  .header {
    flex-direction: column;
  }

  .header-right {
    justify-items: start;
  }

  .grid,
  .kpi-row,
  .io-grid {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: span 1;
  }

  .meta-list > div {
    grid-template-columns: 1fr;
  }
}