:root {
      --bg: #050508;
      --surface: #0d0d14;
      --border: #1a1a2e;
      --cyan: #00ffcc;
      --purple: #7b61ff;
      --blue: #3b82f6;
      --amber: #f59e0b;
      --green: #22c55e;
      --red: #ef4444;
      --grey: #2a2a3a;
      --text: #e2e8f0;
      --muted: #64748b;
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--text);
      background:
        radial-gradient(1200px 700px at 80% -10%, rgba(59, 130, 246, 0.09), transparent 55%),
        radial-gradient(900px 500px at 2% 30%, rgba(123, 97, 255, 0.08), transparent 55%),
        radial-gradient(800px 450px at 85% 85%, rgba(0, 255, 204, 0.07), transparent 55%),
        var(--bg);
      font-family: "Syne", sans-serif;
      overflow-x: hidden;
    }

    body::after {
      content: "";
      pointer-events: none;
      position: fixed;
      inset: 0;
      z-index: 50;
      opacity: 0.07;
      background: repeating-linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.65) 0,
        rgba(255, 255, 255, 0.65) 1px,
        transparent 1px,
        transparent 4px
      );
    }

    .app {
      width: 100%;
      margin: 0;
      border: 1px solid var(--border);
      background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.005));
      box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
      backdrop-filter: blur(4px);
    }

    .topbar {
      min-height: 52px;
      padding: 10px 12px;
      background: var(--surface);
      border-bottom: 1px solid var(--border);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      flex-wrap: wrap;
    }

    .peer-group, .counter-group {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .peer-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 20px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.03);
      font-family: "Space Mono", monospace;
      font-size: 10px;
      color: var(--muted);
      padding: 5px 10px;
      letter-spacing: 0.3px;
      transition: border-color 0.35s ease, box-shadow 0.35s ease;
    }

    .peer-pill.self {
      border-color: rgba(0,255,204,0.75);
      color: #cffef4;
      box-shadow: 0 0 14px rgba(0,255,204,0.18);
    }

    .dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      display: inline-block;
      background: var(--grey);
    }

    .dot.online, .dot.syncing {
      animation: dotPulse 2s ease-in-out infinite;
    }

    .dot.online { background: var(--green); }
    .dot.syncing { background: var(--amber); }

    .badge {
      border: 1px solid transparent;
      border-radius: 12px;
      padding: 3px 9px;
      font-family: "Space Mono", monospace;
      font-size: 10px;
      text-transform: uppercase;
      letter-spacing: 0.35px;
      white-space: nowrap;
    }

    .badge.pq {
      border-color: rgba(123,97,255,0.52);
      color: #baaaff;
      background: rgba(123,97,255,0.12);
    }

    .badge.live {
      border-color: rgba(0,255,204,0.55);
      color: #aefcea;
      background: rgba(0,255,204,0.12);
      animation: breathe 2s ease-in-out infinite;
    }

    .badge.live.warn {
      border-color: rgba(239,68,68,0.5);
      color: #ffc0c0;
      background: rgba(239,68,68,0.14);
      animation: none;
    }

    .icon-btn {
      border: 1px solid var(--border);
      border-radius: 10px;
      background: rgba(255,255,255,0.03);
      color: var(--text);
      width: 30px;
      height: 30px;
      cursor: pointer;
      font-size: 14px;
      line-height: 1;
      transition: all 0.25s ease;
    }

    .icon-btn:hover {
      border-color: rgba(0,255,204,0.5);
      box-shadow: 0 0 12px rgba(0,255,204,0.18);
    }

    .warn-banner {
      display: none;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-bottom: 1px solid rgba(239,68,68,0.45);
      color: #ffc9c9;
      background: rgba(239,68,68,0.12);
      font-family: "Space Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.25px;
    }

    .warn-banner.show {
      display: flex;
    }

    .conn-strip {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 8px;
      padding: 7px 12px;
      border-bottom: 1px solid var(--border);
      background: rgba(9, 11, 18, 0.95);
    }

    .conn-item {
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 6px 8px;
      background: rgba(255,255,255,0.02);
      min-height: 42px;
    }

    .conn-item .k {
      display: block;
      font-family: "Space Mono", monospace;
      font-size: 8px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.8px;
    }

    .conn-item .v {
      display: block;
      margin-top: 2px;
      font-family: "Space Mono", monospace;
      font-size: 11px;
      color: #d6e8ff;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .settings-panel {
      display: none;
      border-bottom: 1px solid var(--border);
      background: rgba(13,13,20,0.97);
      padding: 10px 12px;
    }

    .settings-panel.open {
      display: block;
    }

    .settings-grid {
      display: grid;
      grid-template-columns: 1fr 1fr auto auto;
      gap: 8px;
      align-items: end;
    }

    .field label {
      display: block;
      margin-bottom: 4px;
      font-family: "Space Mono", monospace;
      font-size: 9px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .field input, .field select {
      width: 100%;
      height: 34px;
      border-radius: 8px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.03);
      color: var(--text);
      padding: 0 10px;
      font-family: "Space Mono", monospace;
      font-size: 11px;
    }

    .btn {
      height: 34px;
      border-radius: 8px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.05);
      color: var(--text);
      padding: 0 11px;
      cursor: pointer;
      font-family: "Space Mono", monospace;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.6px;
    }

    .btn.primary {
      border-color: rgba(0,255,204,0.5);
      color: #b9fff2;
      background: rgba(0,255,204,0.12);
    }


    .debug {
      margin-top: 8px;
      border-top: 1px solid var(--border);
      padding-top: 7px;
    }

    .debug summary {
      cursor: pointer;
      font-family: "Space Mono", monospace;
      font-size: 10px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.8px;
    }

    .debug-grid {
      margin-top: 8px;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 6px;
    }

    .debug-card {
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 6px;
      background: rgba(255,255,255,0.02);
    }

    .debug-card .k {
      font-family: "Space Mono", monospace;
      font-size: 8px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.8px;
    }

    .debug-card .v {
      margin-top: 2px;
      font-family: "Space Mono", monospace;
      font-size: 12px;
      color: #cde2ff;
    }

    .counter {
      min-width: 74px;
      padding: 4px 6px;
      border-left: 1px solid var(--border);
    }

    .counter-label {
      display: block;
      font-family: "Space Mono", monospace;
      font-size: 8px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.9px;
    }

    .counter-value {
      display: block;
      font-family: "Space Mono", monospace;
      font-size: 13px;
      font-weight: 700;
      margin-top: 2px;
      color: #b7c6db;
    }

    .counter-value.slot { color: var(--cyan); }

    .main {
      display: grid;
      grid-template-columns: 290px 1fr 350px;
      gap: 0;
      min-height: 640px;
      border-bottom: 1px solid var(--border);
    }

    .panel {
      background: rgba(13,13,20,0.78);
      border-right: 1px solid var(--border);
      padding: 16px 14px;
      position: relative;
    }

    .panel:last-child { border-right: 0; }

    .panel h2 {
      margin: 0 0 10px;
      font-size: 14px;
      letter-spacing: 0.7px;
      font-weight: 700;
      text-transform: uppercase;
    }

    .panel-sub {
      margin: 0;
      font-size: 11px;
      color: var(--muted);
      letter-spacing: 0.5px;
      text-transform: uppercase;
      font-family: "Space Mono", monospace;
    }

    .slot-head {
      margin: 14px 0 10px;
      font-family: "Space Mono", monospace;
      font-size: 33px;
      color: var(--cyan);
      letter-spacing: 0.8px;
      text-shadow: 0 0 12px rgba(0,255,204,0.3);
    }

    .phase-list {
      margin-top: 14px;
      display: grid;
      gap: 8px;
      position: relative;
    }

    .phase-item {
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 8px 10px;
      background: rgba(255,255,255,0.014);
      transition: all 0.35s ease;
    }

    .phase-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.35px;
    }

    .phase-name {
      font-family: "Space Mono", monospace;
      color: #95a9c7;
      font-size: 12px;
    }

    .phase-desc {
      margin-top: 4px;
      font-size: 10px;
      color: var(--muted);
      line-height: 1.3;
    }

    .phase-progress {
      margin-top: 6px;
      height: 5px;
      border-radius: 999px;
      background: rgba(255,255,255,0.06);
      overflow: hidden;
    }

    .phase-progress > span {
      display: block;
      height: 100%;
      width: 0%;
      background: linear-gradient(90deg, rgba(0,255,204,0.2), var(--cyan));
      transition: width 0.1s linear;
    }

    .phase-item.active {
      border-color: rgba(0,255,204,0.45);
      box-shadow: 0 0 16px rgba(0,255,204,0.14);
      background: rgba(0,255,204,0.05);
    }

    .phase-item.active .phase-name,
    .phase-item.active .phase-icon {
      color: var(--cyan);
      text-shadow: 0 0 10px rgba(0,255,204,0.28);
    }

    .phase-item.done {
      border-color: rgba(34,197,94,0.3);
      background: rgba(34,197,94,0.07);
      opacity: 0.86;
    }

    .phase-item.done .phase-name,
    .phase-item.done .phase-icon {
      color: var(--green);
    }

    .phase-item.pending {
      opacity: 0.58;
      filter: saturate(0.65);
    }

    .slot-foot {
      margin-top: 14px;
      border-top: 1px solid var(--border);
      padding-top: 10px;
      font-family: "Space Mono", monospace;
      font-size: 12px;
      color: #a5b6cf;
      line-height: 1.45;
    }

    .slot-foot .countdown {
      font-size: 18px;
      color: #d0fff5;
      text-shadow: 0 0 8px rgba(0,255,204,0.25);
      display: block;
      margin-bottom: 3px;
    }

    .canvas-panel {
      display: flex;
      flex-direction: column;
      gap: 8px;
      padding: 14px;
      background: rgba(13,13,20,0.64);
      border-right: 1px solid var(--border);
    }

    .canvas-title {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 8px;
      margin-bottom: 6px;
    }

    .canvas-title h2 {
      margin: 0;
      font-size: 14px;
      text-transform: uppercase;
      letter-spacing: 0.7px;
    }

    .canvas-title span {
      font-family: "Space Mono", monospace;
      color: var(--muted);
      font-size: 10px;
      text-transform: uppercase;
      letter-spacing: 0.8px;
    }

    .canvas-wrap {
      position: relative;
      border: 1px solid var(--border);
      border-radius: 12px;
      overflow: hidden;
      background: linear-gradient(180deg, rgba(0,0,0,0.18), rgba(255,255,255,0.01));
    }

    canvas {
      width: 100%;
      height: 100%;
      display: block;
    }

    #chainCanvas { height: 520px; }
    #validatorCanvas { height: 420px; }

    .net-stats {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 6px;
      margin-top: 8px;
    }

    .net-stat {
      border: 1px solid var(--border);
      border-radius: 9px;
      padding: 8px 7px;
      background: rgba(255,255,255,0.02);
    }

    .net-stat span {
      display: block;
      font-family: "Space Mono", monospace;
    }

    .net-stat .k {
      font-size: 9px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.7px;
    }

    .net-stat .v {
      font-size: 14px;
      color: #cee8ff;
      margin-top: 3px;
    }

    .bottom {
      background: rgba(5,5,8,0.9);
      border-top: 1px solid var(--border);
      padding: 12px;
      display: grid;
      grid-template-columns: 220px 220px 1fr 300px;
      gap: 10px;
      align-items: stretch;
    }

    .cp-box {
      border-radius: 10px;
      padding: 10px;
      background: rgba(255,255,255,0.02);
      min-height: 112px;
    }

    .cp-box .label {
      font-family: "Space Mono", monospace;
      font-size: 9px;
      letter-spacing: 1px;
      text-transform: uppercase;
    }

    .cp-box .slot {
      font-family: "Space Mono", monospace;
      font-size: 28px;
      margin-top: 3px;
      font-weight: 700;
    }

    .cp-box .hash {
      font-family: "Space Mono", monospace;
      font-size: 10px;
      color: #8a9cb6;
      margin-top: 5px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .cp-box.justified {
      border: 1px solid rgba(245,158,11,0.4);
      background: rgba(245,158,11,0.05);
    }

    .cp-box.justified .label,
    .cp-box.justified .slot { color: var(--amber); }

    .cp-box.finalized {
      border: 1px solid rgba(34,197,94,0.44);
      background: rgba(34,197,94,0.05);
    }

    .cp-box.finalized .label,
    .cp-box.finalized .slot { color: var(--green); }

    .gap {
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 10px;
      background: rgba(255,255,255,0.02);
    }

    .gap .title {
      font-family: "Space Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.5px;
      color: #9bb0d0;
    }

    .gap-bar {
      margin-top: 8px;
      height: 6px;
      border-radius: 999px;
      overflow: hidden;
      background: rgba(255,255,255,0.08);
    }

    .gap-fill {
      height: 100%;
      width: 0%;
      transition: width 0.8s ease, background-color 0.4s ease;
      background: var(--green);
      box-shadow: 0 0 12px rgba(34,197,94,0.5);
    }

    .gap .helper {
      margin-top: 8px;
      color: var(--muted);
      font-size: 11px;
      letter-spacing: 0.2px;
    }

    .chip-wrap {
      margin-top: 10px;
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
    }

    .chip {
      min-width: 30px;
      height: 30px;
      border-radius: 9px;
      border: 1px solid rgba(34,197,94,0.35);
      background: rgba(34,197,94,0.08);
      color: #6ef3a0;
      font-family: "Space Mono", monospace;
      font-size: 11px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .bottom-metrics {
      border-left: 1px solid var(--border);
      padding-left: 10px;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 7px;
      align-content: start;
    }

    .bottom-metric {
      border: 1px solid var(--border);
      border-radius: 9px;
      padding: 8px;
      background: rgba(255,255,255,0.02);
    }

    .bottom-metric .v {
      font-family: "Space Mono", monospace;
      font-size: 16px;
      color: #d3e7ff;
      font-weight: 700;
    }

    .bottom-metric .k {
      margin-top: 2px;
      font-family: "Space Mono", monospace;
      font-size: 8px;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--muted);
    }

    @keyframes dotPulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.58; transform: scale(1.1); }
    }

    @keyframes breathe {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.62; }
    }

    @media (max-width: 1300px) {
      .settings-grid {
        grid-template-columns: 1fr;
      }

      .conn-strip {
        grid-template-columns: 1fr 1fr;
      }

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

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

      .panel,
      .canvas-panel {
        border-right: 0;
        border-bottom: 1px solid var(--border);
      }

      #chainCanvas { height: 420px; }
      #validatorCanvas { height: 360px; }

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

      .bottom-metrics { border-left: 0; padding-left: 0; }
    }