@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@300;400;500&display=swap');

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

  :root {
    --bg: #0a0c0f;
    --surface: #111317;
    --surface2: #181b20;
    --border: #22262d;
    --border-bright: #2e3440;
    --text: #e8eaf0;
    --text-muted: #9ea8ba;
    --text-dim: #768195;
    --accent: #00d4a0;
    --accent-dim: rgba(0, 212, 160, 0.12);
    --accent-glow: rgba(0, 212, 160, 0.08);
    --amber: #f0a020;
    --amber-dim: rgba(240, 160, 32, 0.12);
    --blue: #4da8ff;
    --blue-dim: rgba(77, 168, 255, 0.12);
    --red: #ff5a5a;
    --red-dim: rgba(255, 90, 90, 0.12);
    --mono: 'IBM Plex Mono', monospace;
    --sans: 'IBM Plex Sans', sans-serif;
  }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-size: 15px;
    line-height: 1.6;
    min-height: 100vh;
  }

  /* Grid lines background */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(var(--border) 1px, transparent 1px),
      linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.25;
    pointer-events: none;
    z-index: 0;
  }

  .wrap {
    position: relative;
    z-index: 1;
    max-width: 880px;
    margin: 0 auto;
    padding: 48px 24px 80px;
  }

  /* Header */
  header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 48px;
    gap: 18px;
  }

  .logo-mark {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .logo-asset-wrap {
    width: 42px;
    height: 42px;
    border: 1px solid rgba(0, 212, 160, 0.34);
    border-radius: 6px;
    overflow: hidden;
    background: #211d1f;
    display: grid;
    place-items: center;
    flex-shrink: 0;
  }

  .logo-asset {
    width: 42px;
    height: 42px;
    object-fit: cover;
    object-position: center;
    display: block;
    filter: contrast(1.1);
  }

  .logo-text {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    letter-spacing: 0.08em;
  }

  .logo-sub {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    margin-top: 1px;
  }

  .badge {
    font-family: var(--mono);
    font-size: 10px;
    padding: 4px 10px;
    border: 1px solid var(--border-bright);
    color: var(--text-muted);
    letter-spacing: 0.08em;
    border-radius: 3px;
    margin-top: 2px;
  }

  .badge.live {
    border-color: var(--accent);
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .header-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
  }

  .header-link {
    font-family: var(--mono);
    font-size: 10px;
    padding: 5px 10px;
    border: 1px solid var(--border-bright);
    color: var(--text-muted);
    text-decoration: none;
    letter-spacing: 0.08em;
    border-radius: 3px;
    margin-top: 2px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s;
  }

  .header-link:hover {
    color: var(--accent);
    border-color: rgba(0, 212, 160, 0.55);
    background: var(--accent-glow);
  }

  .star-link {
    color: var(--amber);
    border-color: rgba(240, 160, 32, 0.4);
  }

  .star-link:hover {
    color: var(--amber);
    border-color: var(--amber);
    background: var(--amber-dim);
  }

  .star-icon {
    font-size: 13px;
    line-height: 1;
  }

  .pulse {
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }

  /* Hero */
  .hero {
    position: relative;
    margin-bottom: 40px;
    min-height: 170px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 28px;
  }

  .hero-copy {
    position: relative;
    z-index: 1;
  }

  .hero h1 {
    font-size: 36px;
    font-weight: 300;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 12px;
  }

  .hero h1 em {
    font-style: normal;
    color: var(--accent);
    font-weight: 500;
  }

  .hero p {
    font-size: 14px;
    color: var(--text-muted);
    max-width: 560px;
    line-height: 1.7;
  }

  .hero-logo-wrap {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    opacity: 0.22;
    flex-shrink: 0;
    pointer-events: none;
    mix-blend-mode: screen;
    transform: translateY(-18px);
  }

  .hero-logo {
    width: 560px;
    height: 560px;
    object-fit: cover;
    object-position: 50% 66%;
    transform: translate(-190px, -210px);
    filter: saturate(1.25) contrast(1.1);
  }

  /* Init banner */
  .init-bar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px 18px;
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
  }

  .init-bar-left {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-muted);
  }

  .init-icon {
    font-size: 16px;
    color: var(--amber);
  }

  .init-bar.ready .init-icon { color: var(--accent); }
  .init-bar.ready { border-color: rgba(0, 212, 160, 0.2); }

  /* Steps */
  .steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .step {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.2s;
  }

  .step.active { border-color: var(--border-bright); }
  .step.done { border-color: rgba(0, 212, 160, 0.25); }

  .step-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    cursor: pointer;
    user-select: none;
  }

  .step-num {
    width: 26px; height: 26px;
    border: 1px solid var(--border-bright);
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    flex-shrink: 0;
    transition: all 0.2s;
  }

  .step.active .step-num {
    border-color: var(--accent);
    color: var(--accent);
  }

  .step.done .step-num {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
  }

  .step-title {
    flex: 1;
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.02em;
  }

  .step-role {
    font-family: var(--mono);
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 3px;
    letter-spacing: 0.06em;
  }

  .role-recipient { background: var(--blue-dim); color: var(--blue); }
  .role-sender { background: var(--amber-dim); color: var(--amber); }
  .role-both { background: var(--accent-dim); color: var(--accent); }

  .step-chevron {
    color: var(--text-dim);
    font-size: 12px;
    transition: transform 0.2s;
  }

  .step.active .step-chevron { transform: rotate(180deg); color: var(--text-muted); }

  .step-body {
    display: none;
    border-top: 1px solid var(--border);
    padding: 20px;
  }

  .step.active .step-body { display: block; }

  /* Code display */
  .code-block {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 14px 16px;
    font-family: var(--mono);
    font-size: 11.5px;
    color: #8fa0b8;
    margin-bottom: 14px;
    line-height: 1.7;
    overflow-x: auto;
    white-space: pre;
  }

  .code-block .kw { color: #c792ea; }
  .code-block .fn { color: #82aaff; }
  .code-block .str { color: #c3e88d; }
  .code-block .cm { color: #546578; font-style: italic; }
  .code-block .ct { color: var(--accent); }

  /* Outputs */
  .output-grid {
    display: grid;
    gap: 10px;
    margin-top: 14px;
  }

  .output-field {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 5px;
    overflow: hidden;
  }

  .output-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-muted);
    padding: 6px 12px;
    border-bottom: 1px solid var(--border);
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .output-label .copy-btn {
    font-size: 10px;
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-family: var(--mono);
    padding: 0;
    letter-spacing: 0.06em;
    transition: color 0.15s;
  }

  .output-label .copy-btn:hover { color: var(--accent); }

  .output-value {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text);
    padding: 10px 12px;
    word-break: break-all;
    line-height: 1.6;
    min-height: 38px;
  }

  .output-value.secret {
    color: var(--text-dim);
    font-style: italic;
  }

  .output-value.empty {
    color: var(--text-dim);
    font-style: italic;
  }

  .output-value.accent { color: var(--accent); }
  .output-value.blue { color: var(--blue); }
  .output-value.amber { color: var(--amber); }

  /* Inputs */
  .input-field {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 5px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text);
    padding: 10px 12px;
    width: 100%;
    resize: vertical;
    margin-bottom: 10px;
    min-height: 60px;
    transition: border-color 0.2s;
  }

  .input-field:focus {
    outline: none;
    border-color: var(--border-bright);
  }

  /* Buttons */
  .btn {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    padding: 10px 18px;
    border-radius: 4px;
    border: 1px solid;
    cursor: pointer;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .btn-primary {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
  }

  .btn-primary:hover {
    background: rgba(0, 212, 160, 0.2);
  }

  .btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
  }

  .btn-amber {
    background: var(--amber-dim);
    border-color: var(--amber);
    color: var(--amber);
  }

  .btn-amber:hover { background: rgba(240, 160, 32, 0.2); }
  .btn-amber:disabled { opacity: 0.4; cursor: not-allowed; }

  .btn-blue {
    background: var(--blue-dim);
    border-color: var(--blue);
    color: var(--blue);
  }

  .btn-blue:hover { background: rgba(77, 168, 255, 0.2); }
  .btn-blue:disabled { opacity: 0.4; cursor: not-allowed; }

  /* Result banner */
  .result-banner {
    border-radius: 5px;
    padding: 12px 16px;
    font-family: var(--mono);
    font-size: 11px;
    margin-top: 12px;
    display: none;
    align-items: center;
    gap: 10px;
    line-height: 1.5;
  }

  .result-banner.success {
    display: flex;
    background: var(--accent-dim);
    border: 1px solid rgba(0, 212, 160, 0.3);
    color: var(--accent);
  }

  .result-banner.error {
    display: flex;
    background: var(--red-dim);
    border: 1px solid rgba(255, 90, 90, 0.3);
    color: var(--red);
    word-break: break-all;
  }

  .result-banner.info {
    display: flex;
    background: var(--blue-dim);
    border: 1px solid rgba(77, 168, 255, 0.3);
    color: var(--blue);
  }

  /* Description */
  .desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.7;
  }

  .desc code {
    font-family: var(--mono);
    font-size: 11px;
    background: var(--surface2);
    color: var(--text);
    padding: 1px 5px;
    border-radius: 3px;
  }

  .divider {
    height: 1px;
    background: var(--border);
    margin: 16px 0;
  }

  /* Flow diagram */
  .flow {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 32px;
    overflow-x: auto;
    padding: 2px 0;
  }

  .flow-node {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 8px 14px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    white-space: nowrap;
    flex-shrink: 0;
    transition: all 0.3s;
  }

  .flow-node.done {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
  }

  .flow-arrow {
    flex-shrink: 0;
    color: var(--text-dim);
    font-size: 14px;
    padding: 0 4px;
  }

  .flow-node.done + .flow-arrow { color: var(--accent); }

  /* Loading spinner */
  .spinner {
    width: 12px; height: 12px;
    border: 1.5px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
  }

  @keyframes spin { to { transform: rotate(360deg); } }

  /* Scan result card */
  .scan-result {
    display: none;
    margin-top: 12px;
  }

  .scan-result.visible { display: block; }

  .scan-match {
    padding: 16px;
    background: var(--accent-dim);
    border: 1px solid rgba(0, 212, 160, 0.3);
    border-radius: 6px;
  }

  .scan-match h4 {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.08em;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .check { font-size: 14px; }

  .test-panel {
    margin: 16px 0;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
  }

  .test-panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
  }

  .test-panel-title {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--amber);
    letter-spacing: 0.08em;
    margin-bottom: 4px;
  }

  .test-panel-copy {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
  }

  .test-panel-copy code {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text);
    background: var(--surface2);
    padding: 1px 5px;
    border-radius: 3px;
  }

  .check-row {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text);
    line-height: 1.45;
    margin-top: 8px;
  }

  .check-row input {
    margin-top: 2px;
    accent-color: var(--accent);
  }

  .check-row small {
    display: block;
    color: var(--text-dim);
    font-size: 10px;
    margin-top: 2px;
  }

  .check-row-inline {
    margin-top: 0;
    align-items: center;
  }

  .tamper-result {
    border-radius: 6px;
    padding: 14px 16px;
    font-family: var(--mono);
    font-size: 11px;
    line-height: 1.6;
    margin-top: 12px;
  }

  .tamper-result.error {
    border: 1px solid rgba(255, 90, 90, 0.35);
    background: var(--red-dim);
    color: var(--red);
  }

  .tamper-result-title {
    font-weight: 500;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
  }

  .tamper-result-details {
    color: var(--text);
    display: grid;
    gap: 3px;
  }

  .tamper-result p {
    margin-top: 10px;
    color: var(--text-muted);
  }

  .batch-panel {
    margin-top: 18px;
  }

  .batch-controls {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) auto auto;
    gap: 14px;
    align-items: end;
  }

  .range-control {
    display: grid;
    gap: 6px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 0.06em;
  }

  .range-control input {
    width: 100%;
    accent-color: var(--accent);
  }

  .range-control strong {
    color: var(--accent);
    font-size: 12px;
  }

  .batch-result {
    margin-top: 12px;
  }

  .batch-summary {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 10px;
  }

  .accent-text {
    color: var(--accent);
  }

  .batch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(10px, 1fr));
    gap: 5px;
  }

  .batch-cell {
    display: block;
    aspect-ratio: 1;
    border-radius: 2px;
    border: 1px solid transparent;
  }

  .batch-cell.match {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 8px rgba(0, 212, 160, 0.45);
  }

  .batch-cell.reject {
    background: rgba(255, 90, 90, 0.3);
    border-color: rgba(255, 90, 90, 0.4);
  }

  /* Footer */
  footer {
    margin-top: 64px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
  }

  footer p {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 0.06em;
  }

  footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s;
  }

  footer a:hover { color: var(--accent); }

  .tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: var(--mono);
    font-size: 9px;
    padding: 2px 7px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--text-dim);
    letter-spacing: 0.06em;
    margin-left: 6px;
    vertical-align: middle;
  }

  .tag.green { border-color: rgba(0, 212, 160, 0.3); color: var(--accent); }

  /* Tab nav */
  .tab-nav {
    display: flex;
    gap: 2px;
    margin-bottom: 28px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 4px;
  }

  .tab-btn {
    flex: 1;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    padding: 9px 16px;
    border-radius: 5px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }

  .tab-btn:hover { color: var(--text); background: var(--surface2); }

  .tab-btn.active {
    background: var(--surface2);
    color: var(--accent);
    border: 1px solid var(--border-bright);
  }

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

  /* Code editor */
  .editor-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
  }

  .editor-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    gap: 10px;
  }

  .editor-toolbar-left {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .snippet-select {
    font-family: var(--mono);
    font-size: 11px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    padding: 5px 10px;
    cursor: pointer;
    transition: border-color 0.15s;
  }

  .snippet-select:focus { outline: none; border-color: var(--border-bright); }

  .editor-toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .editor-area {
    position: relative;
  }

  #code-editor {
    width: 100%;
    min-height: 300px;
    background: var(--bg);
    border: none;
    color: #abb2bf;
    font-family: var(--mono);
    font-size: 12.5px;
    line-height: 1.75;
    padding: 16px 20px;
    resize: vertical;
    tab-size: 2;
    outline: none;
    display: block;
    border-top: 1px solid var(--border);
  }

  .run-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-top: 1px solid var(--border);
    background: var(--surface);
    gap: 10px;
  }

  .run-bar-hint {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 0.06em;
  }

  .run-bar-hint kbd {
    background: var(--surface2);
    border: 1px solid var(--border-bright);
    border-radius: 3px;
    padding: 1px 5px;
    font-family: var(--mono);
    font-size: 9px;
    color: var(--text-muted);
  }

  .output-console {
    border-top: 1px solid var(--border);
    background: var(--bg);
  }

  .console-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    border-bottom: 1px solid var(--border);
  }

  .console-title {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .console-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--text-dim);
  }

  .console-dot.running { background: var(--amber); animation: pulse 1s infinite; }
  .console-dot.success { background: var(--accent); }
  .console-dot.error { background: var(--red); }

  .console-clear {
    font-family: var(--mono);
    font-size: 10px;
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    letter-spacing: 0.06em;
    padding: 0;
    transition: color 0.15s;
  }

  .console-clear:hover { color: var(--text-muted); }

  .console-body {
    min-height: 160px;
    max-height: 380px;
    overflow-y: auto;
    padding: 12px 16px;
    font-family: var(--mono);
    font-size: 11.5px;
    line-height: 1.7;
  }

  .console-line {
    display: flex;
    gap: 10px;
    margin-bottom: 2px;
    word-break: break-all;
  }

  .console-line .prefix {
    color: var(--text-dim);
    flex-shrink: 0;
    user-select: none;
  }

  .console-line.log .msg { color: var(--text); }
  .console-line.info .msg { color: var(--blue); }
  .console-line.warn .msg { color: var(--amber); }
  .console-line.err .msg { color: var(--red); }
  .console-line.result .msg { color: var(--accent); }
  .console-line.system .msg { color: var(--text-dim); font-style: italic; }

  .console-empty {
    color: var(--text-dim);
    font-style: italic;
    font-family: var(--mono);
    font-size: 11px;
  }

  .is-hidden {
    display: none;
  }

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

  .grid-spaced {
    margin-top: 12px;
  }

  .field-full {
    grid-column: 1 / -1;
  }

  .text-small {
    font-size: 10px;
  }

  .desc-muted {
    margin-top: 0;
    font-size: 12px;
    color: var(--text-dim);
  }

  .field-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 4px;
    letter-spacing: 0.06em;
  }

  .textarea-compact {
    min-height: 36px;
  }

  .scan-keys-grid {
    margin-top: 10px;
    display: none;
  }

  .globals-card {
    margin-top: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px 18px;
  }

  .globals-title {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    margin-bottom: 10px;
  }

  .globals-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .global-pill {
    font-family: var(--mono);
    font-size: 10px;
    background: var(--accent-dim);
    border: 1px solid rgba(0, 212, 160, 0.2);
    color: var(--accent);
    padding: 3px 8px;
    border-radius: 3px;
  }

  .global-pill.constant {
    background: var(--blue-dim);
    border-color: rgba(77, 168, 255, 0.2);
    color: var(--blue);
  }

  .btn-compact {
    font-size: 10px;
    padding: 6px 14px;
  }

  .btn-muted {
    padding: 6px 12px;
    border-color: var(--border-bright);
    color: var(--text-muted);
  }

  .console-separator {
    border-top: 1px solid var(--border);
    margin: 8px 0;
  }

  .error-text {
    color: var(--red);
  }

  .badge.error {
    color: var(--red);
    border-color: var(--red);
  }

  /* Readability tuning */
  .hero p,
  .desc {
    font-size: 15px;
    line-height: 1.75;
  }

  .desc-muted,
  .test-panel-copy {
    font-size: 13px;
  }

  .init-bar-left {
    font-size: 13px;
  }

  .step-num {
    font-size: 12px;
  }

  .step-title {
    font-size: 14px;
  }

  .code-block {
    font-size: 12.5px;
    color: #b2c1d6;
  }

  .code-block .cm {
    color: #7f90a7;
  }

  #code-editor {
    color: #ccd5e2;
    font-size: 13.5px;
  }

  .output-value,
  .input-field,
  .btn,
  .console-body,
  .tamper-result {
    font-size: 12px;
  }

  .output-label,
  .output-label .copy-btn,
  .field-label,
  .step-role,
  .flow-node,
  .tab-btn,
  .snippet-select,
  .run-bar-hint,
  .run-bar-hint kbd,
  .console-title,
  .console-clear,
  .globals-title,
  .global-pill,
  .btn-compact,
  .header-link,
  .badge,
  .batch-summary,
  .test-panel-title,
  footer p,
  .tag,
  .text-small,
  .logo-sub {
    font-size: 11px;
  }

  /* Responsive */
  @media (max-width: 600px) {
    .hero h1 { font-size: 26px; }
    header { flex-direction: column; gap: 12px; }
    .header-actions { justify-content: flex-start; }
    .hero { min-height: 0; }
    .hero-logo-wrap { display: none; }
    .wrap { padding: 32px 16px 60px; }
    .tab-btn span.tab-label { display: none; }
    .batch-controls { grid-template-columns: 1fr; align-items: stretch; }
  }