:root {
    --bg: #0e0f11;
    --surface: #16181c;
    --surface2: #1e2026;
    --border: #2a2d35;
    --border2: #353840;
    --blue: #3b82f6;
    --blue-dim: #1d4ed8;
    --blue-glow: rgba(59,130,246,0.15);
    --green: #22c55e;
    --green-dim: #166534;
    --green-glow: rgba(34,197,94,0.12);
    --amber: #f59e0b;
    --amber-dim: #92400e;
    --red: #ef4444;
    --red-dim: #991b1b;
    --purple: #a855f7;
    --purple-dim: #6b21a8;
    --cyan: #06b6d4;
    --text: #e8eaf0;
    --text2: #9ba3b2;
    --text3: #5c6470;
    --mono: 'IBM Plex Mono', monospace;
    --sans: 'Inter', sans-serif;
    --display: 'Syne', sans-serif;
  }

  [data-theme="light"] {
    --bg: #ffffff;
    --surface: #f8f9fa;
    --surface2: #e9ecef;
    --border: #dee2e6;
    --border2: #ced4da;
    --blue: #0d6efd;
    --blue-dim: #0a58ca;
    --blue-glow: rgba(13,110,253,0.1);
    --green: #198754;
    --green-dim: #146c43;
    --green-glow: rgba(25,135,84,0.1);
    --amber: #fd7e14;
    --amber-dim: #ca6510;
    --red: #dc3545;
    --red-dim: #b02a37;
    --purple: #6f42c1;
    --purple-dim: #59359a;
    --cyan: #0dcaf0;
    --text: #212529;
    --text2: #495057;
    --text3: #6c757d;
  }

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

  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
  }

  /* ── NAV ── */
  .nav {
    position: sticky; top: 0; z-index: 100;
    background: var(--bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 40px;
    display: flex; align-items: center; gap: 0;
    height: 52px;
  }
  .nav-logo {
    font-family: var(--display);
    font-weight: 800;
    font-size: 16px;
    color: var(--blue);
    letter-spacing: 0.04em;
    margin-right: 32px;
    white-space: nowrap;
  }
  .nav-logo span { color: var(--text3); font-weight: 400; }
  .nav-tabs { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; flex: 1; }
  .nav-tabs::-webkit-scrollbar { display: none; }
  .nav-tab {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text3);
    cursor: pointer;
    border: none;
    background: transparent;
    white-space: nowrap;
    transition: all 0.15s;
    font-family: var(--sans);
  }
  .nav-tab:hover { color: var(--text); background: var(--surface); }
  .nav-tab.active { color: var(--blue); background: var(--blue-glow); }
  
  .theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.2s;
    margin-left: 12px;
    flex-shrink: 0;
  }
  .theme-toggle:hover {
    background: var(--surface2);
    border-color: var(--border2);
  }

  /* ── LAYOUT ── */
  .page { display: none; padding: 40px; max-width: 1400px; margin: 0 auto; }
  .page.active { display: block; }

  /* ── SECTION HEADER ── */
  .section-label {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text3);
    margin-bottom: 12px;
  }
  .section-label::before {
    content: '';
    display: block; width: 20px; height: 1px;
    background: var(--border2);
  }
  .page-title {
    font-family: var(--display);
    font-size: 28px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 6px;
    letter-spacing: -0.02em;
  }
  .page-subtitle {
    color: var(--text2);
    font-size: 14px;
    margin-bottom: 40px;
  }

  /* ── SETUP CARDS ── */
  .setup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
  }
  .setup-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
  }
  .setup-card-header {
    padding: 16px 20px;
    background: var(--surface2);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .setup-icon {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
  }
  .setup-title {
    font-family: var(--display);
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
  }
  .setup-body {
    padding: 20px;
  }
  .setup-step {
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
  }
  .setup-step:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
  }
  .step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    background: var(--blue-glow);
    color: var(--blue);
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 600;
    margin-right: 8px;
  }
  .step-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
  }
  .step-desc {
    font-size: 12px;
    color: var(--text2);
    line-height: 1.6;
    margin-left: 28px;
  }
  .code-block {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--cyan);
    overflow-x: auto;
    margin: 8px 0 8px 28px;
  }
  .code-line {
    margin: 2px 0;
  }
  .code-comment {
    color: var(--text3);
  }

  /* ── ACCORDION ── */
  .accordion {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
  }
  .accordion-header {
    padding: 14px 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
    transition: background 0.2s;
  }
  .accordion-header:hover {
    background: var(--surface2);
  }
  .accordion-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .accordion-icon {
    font-size: 12px;
    color: var(--text3);
    transition: transform 0.2s;
  }
  .accordion.open .accordion-icon {
    transform: rotate(90deg);
  }
  .accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .accordion.open .accordion-body {
    max-height: 2000px;
  }
  .accordion-content {
    padding: 0 18px 18px 18px;
    font-size: 12px;
    color: var(--text2);
    line-height: 1.6;
  }

  /* ── INTEGRATION MAP ── */
  .integration-diagram {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 32px;
  }
  .integration-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
  }
  .integration-row:last-child {
    margin-bottom: 0;
  }
  .integration-box {
    flex: 1;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .integration-arrow {
    font-size: 18px;
    color: var(--text3);
    flex-shrink: 0;
  }
  .box-icon {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    flex-shrink: 0;
  }

  /* ── API ENDPOINT TABLE ── */
  .api-table {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 24px;
  }
  .api-table-header {
    display: grid;
    grid-template-columns: 120px 1fr 100px;
    padding: 10px 16px;
    background: var(--surface2);
    border-bottom: 1px solid var(--border);
  }
  .api-table-header-cell {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .api-table-row {
    display: grid;
    grid-template-columns: 120px 1fr 100px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
  }
  .api-table-row:last-child {
    border-bottom: none;
  }
  .api-method {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    width: fit-content;
  }
  .method-get {
    background: var(--blue-glow);
    color: var(--blue);
    border: 1px solid rgba(59,130,246,0.3);
  }
  .method-post {
    background: var(--green-glow);
    color: var(--green);
    border: 1px solid rgba(34,197,94,0.25);
  }
  .api-endpoint {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text);
  }
  .api-description {
    font-size: 11px;
    color: var(--text2);
    margin-top: 4px;
  }

  /* ── PREVIOUS STYLES (flows, emails, etc) ── */
  .flow-title {
    font-family: var(--display);
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 20px;
    display: flex; align-items: center; gap: 10px;
  }
  .flow-badge {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.08em;
  }
  .badge-blue { background: var(--blue-glow); color: var(--blue); border: 1px solid rgba(59,130,246,0.3); }
  .badge-green { background: var(--green-glow); color: var(--green); border: 1px solid rgba(34,197,94,0.25); }
  .badge-amber { background: rgba(245,158,11,0.1); color: var(--amber); border: 1px solid rgba(245,158,11,0.25); }
  .badge-red { background: rgba(239,68,68,0.1); color: var(--red); border: 1px solid rgba(239,68,68,0.25); }
  .badge-purple { background: rgba(168,85,247,0.1); color: var(--purple); border: 1px solid rgba(168,85,247,0.25); }
  .badge-cyan { background: rgba(6,182,212,0.1); color: var(--cyan); border: 1px solid rgba(6,182,212,0.25); }

  /* ── STEPS FLOW ── */
  .steps-flow {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
  }
  .step-row {
    display: flex;
    align-items: stretch;
    gap: 0;
  }
  .step-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 44px;
    flex-shrink: 0;
  }
  .step-num {
    width: 28px; height: 28px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 600;
    flex-shrink: 0;
    margin-top: 14px;
  }
  .step-line {
    width: 1px;
    flex: 1;
    min-height: 16px;
  }
  .step-card {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 18px;
    margin: 4px 0;
    transition: border-color 0.2s;
    position: relative;
  }
  .step-card:hover { border-color: var(--border2); }
  .step-card-title {
    font-weight: 600;
    font-size: 13px;
    color: var(--text);
    margin-bottom: 4px;
  }
  .step-card-desc {
    font-size: 12px;
    color: var(--text2);
    line-height: 1.5;
  }
  .step-card-meta {
    margin-top: 8px;
    display: flex; gap: 8px; flex-wrap: wrap;
  }
  .meta-tag {
    font-family: var(--mono);
    font-size: 10px;
    padding: 2px 7px;
    border-radius: 4px;
    background: var(--surface2);
    color: var(--text3);
    border: 1px solid var(--border);
  }

  /* Colors for step nums */
  .color-blue .step-num { background: var(--blue-glow); color: var(--blue); border: 1px solid rgba(59,130,246,0.3); }
  .color-blue .step-line { background: linear-gradient(to bottom, rgba(59,130,246,0.4), transparent); }
  .color-green .step-num { background: var(--green-glow); color: var(--green); border: 1px solid rgba(34,197,94,0.25); }
  .color-green .step-line { background: linear-gradient(to bottom, rgba(34,197,94,0.3), transparent); }
  .color-amber .step-num { background: rgba(245,158,11,0.1); color: var(--amber); border: 1px solid rgba(245,158,11,0.25); }
  .color-amber .step-line { background: linear-gradient(to bottom, rgba(245,158,11,0.3), transparent); }
  .color-purple .step-num { background: rgba(168,85,247,0.1); color: var(--purple); border: 1px solid rgba(168,85,247,0.25); }
  .color-purple .step-line { background: linear-gradient(to bottom, rgba(168,85,247,0.3), transparent); }
  .color-cyan .step-num { background: rgba(6,182,212,0.1); color: var(--cyan); border: 1px solid rgba(6,182,212,0.25); }
  .color-cyan .step-line { background: linear-gradient(to bottom, rgba(6,182,212,0.3), transparent); }

  /* branch */
  .branch-row {
    display: flex; gap: 12px; margin: 4px 0 4px 44px;
  }
  .branch-card {
    flex: 1;
    border-radius: 8px;
    padding: 12px 14px;
    font-size: 12px;
    border: 1px dashed;
  }
  .branch-yes { background: var(--green-glow); border-color: rgba(34,197,94,0.3); }
  .branch-no { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.3); }
  .branch-maybe { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); }
  .branch-label {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
  }
  .branch-yes .branch-label { color: var(--green); }
  .branch-no .branch-label { color: var(--red); }
  .branch-maybe .branch-label { color: var(--amber); }
  .branch-text { color: var(--text2); }

  /* ── EMAIL SEQUENCE CARDS ── */
  .email-sequence { display: flex; flex-direction: column; gap: 0; }
  .email-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 0;
    position: relative;
  }
  .email-connector {
    display: flex; justify-content: center; height: 20px;
    position: relative;
  }
  .email-connector::before {
    content: '';
    position: absolute;
    left: 50%; top: 0;
    width: 1px; height: 100%;
    background: var(--border2);
  }
  .email-connector-arrow {
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--surface2);
    border: 1px solid var(--border2);
    display: flex; align-items: center; justify-content: center;
    font-size: 8px; color: var(--text3);
    z-index: 1;
  }
  .email-header {
    padding: 12px 16px;
    display: flex; align-items: center; gap: 12px;
    border-bottom: 1px solid var(--border);
  }
  .email-day {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--text3);
    white-space: nowrap;
  }
  .email-subject {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    flex: 1;
  }
  .email-body {
    padding: 12px 16px;
    font-size: 12px;
    color: var(--text2);
    line-height: 1.6;
  }
  .email-cta {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 8px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--blue);
    background: var(--blue-glow);
    border: 1px solid rgba(59,130,246,0.25);
    padding: 3px 10px;
    border-radius: 4px;
  }
  .if-no-reply {
    margin-left: 44px;
    padding: 6px 12px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 4px;
  }

  /* ── TOOL ARCHITECTURE ── */
  .tool-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
  }
  .tool-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    transition: border-color 0.2s;
  }
  .tool-card:hover { border-color: var(--border2); }
  .tool-card-header {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 14px;
  }
  .tool-icon {
    width: 36px; height: 36px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 700;
  }
  .tool-name {
    font-family: var(--display);
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
  }
  .tool-role {
    font-size: 11px;
    color: var(--text3);
    font-family: var(--mono);
  }
  .tool-uses { display: flex; flex-direction: column; gap: 6px; }
  .tool-use-item {
    display: flex; align-items: flex-start; gap: 8px;
    font-size: 12px; color: var(--text2);
  }
  .tool-use-item::before {
    content: '→';
    color: var(--text3);
    font-size: 11px;
    margin-top: 1px;
    flex-shrink: 0;
  }

  /* ── TERRITORY SPLIT ── */
  .territory-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .rep-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
  }
  .rep-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 12px;
  }
  .rep-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--display);
    font-size: 14px;
    font-weight: 800;
  }
  .rep-name {
    font-family: var(--display);
    font-size: 15px;
    font-weight: 700;
  }
  .rep-region {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 0.08em;
  }
  .rep-body { padding: 16px 20px; }
  .rep-section-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
    margin-top: 14px;
  }
  .rep-section-label:first-child { margin-top: 0; }
  .region-tag {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 12px;
    color: var(--text2);
    padding: 4px 10px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    margin: 2px;
  }
  .kpi-row {
    display: flex; justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
  }
  .kpi-row:last-child { border-bottom: none; }
  .kpi-label { color: var(--text2); }
  .kpi-val { color: var(--text); font-weight: 600; font-family: var(--mono); font-size: 11px; }

  /* ── INFRA DIAGRAM ── */
  .infra-row {
    display: flex; align-items: stretch; gap: 12px;
    margin-bottom: 12px;
  }
  .infra-label-col {
    width: 100px;
    display: flex; align-items: center;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-align: right;
    justify-content: flex-end;
  }
  .infra-arrow {
    width: 24px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text3);
    font-size: 14px;
    flex-shrink: 0;
  }
  .infra-items { display: flex; gap: 8px; flex-wrap: wrap; flex: 1; align-items: center; }
  .infra-item {
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid;
    display: flex; align-items: center; gap: 6px;
  }
  .infra-item .dot {
    width: 6px; height: 6px;
    border-radius: 50%;
  }

  /* ── TIMELINE ── */
  .timeline { position: relative; margin-left: 16px; }
  .timeline-item {
    display: flex; gap: 16px; padding-bottom: 20px;
    position: relative;
  }
  .timeline-item::before {
    content: '';
    position: absolute;
    left: -16px; top: 8px;
    width: 1px;
    height: 100%;
    background: var(--border);
  }
  .timeline-item:last-child::before { display: none; }
  .timeline-dot {
    position: absolute;
    left: -20px; top: 6px;
    width: 8px; height: 8px;
    border-radius: 50%;
    border: 2px solid var(--bg);
    flex-shrink: 0;
  }
  .timeline-day {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    white-space: nowrap;
    padding-top: 2px;
    width: 60px;
    flex-shrink: 0;
  }
  .timeline-content { flex: 1; }
  .timeline-title { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 2px; }
  .timeline-desc { font-size: 12px; color: var(--text2); }

  /* ── GRID LAYOUTS ── */
  .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 32px; }
  .three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 32px; }

  /* ── CALLOUT BOX ── */
  .callout {
    border-radius: 10px;
    padding: 16px 20px;
    margin-bottom: 24px;
    display: flex; gap: 14px;
  }
  .callout-blue { background: var(--blue-glow); border: 1px solid rgba(59,130,246,0.25); }
  .callout-green { background: var(--green-glow); border: 1px solid rgba(34,197,94,0.25); }
  .callout-amber { background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.2); }
  .callout-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
  .callout-text { font-size: 13px; color: var(--text2); line-height: 1.6; }
  .callout-text strong { color: var(--text); }

  /* ── DIVIDER ── */
  .divider {
    height: 1px;
    background: var(--border);
    margin: 32px 0;
  }

  /* ── ICP TRIGGER TIERS ── */
  .tier-grid { display: flex; flex-direction: column; gap: 8px; }
  .tier-card {
    display: flex; gap: 16px; align-items: stretch;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
  }
  .tier-icon {
    width: 52px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    padding: 14px;
  }
  .tier-content { padding: 12px 16px 12px 0; flex: 1; }
  .tier-title { font-weight: 600; font-size: 13px; color: var(--text); margin-bottom: 4px; }
  .tier-signals { font-size: 12px; color: var(--text2); }
  .tier-badge {
    align-self: center;
    margin-right: 14px;
    font-family: var(--mono);
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .tier1-bg { background: rgba(239,68,68,0.08); }
  .tier1-icon { background: rgba(239,68,68,0.1); }
  .tier1-badge { background: rgba(239,68,68,0.15); color: var(--red); border: 1px solid rgba(239,68,68,0.3); }
  .tier2-bg { background: rgba(245,158,11,0.05); }
  .tier2-icon { background: rgba(245,158,11,0.1); }
  .tier2-badge { background: rgba(245,158,11,0.12); color: var(--amber); border: 1px solid rgba(245,158,11,0.3); }
  .tier3-bg { background: var(--surface); }
  .tier3-icon { background: rgba(99,102,241,0.1); }
  .tier3-badge { background: rgba(99,102,241,0.12); color: #818cf8; border: 1px solid rgba(99,102,241,0.3); }

  /* scrollbar */
  ::-webkit-scrollbar { width: 6px; height: 6px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

  @media (max-width: 768px) {
    .page { padding: 20px; }
    .two-col, .three-col, .tool-grid, .territory-grid, .setup-grid { grid-template-columns: 1fr; }
    .nav { padding: 0 16px; }
  }



  :root {
    --bg: #0e0f11;
    --surface: #16181c;
    --surface2: #1e2026;
    --border: #2a2d35;
    --border2: #353840;
    --blue: #3b82f6;
    --blue-dim: #1d4ed8;
    --blue-glow: rgba(59,130,246,0.15);
    --green: #22c55e;
    --green-dim: #166534;
    --green-glow: rgba(34,197,94,0.12);
    --amber: #f59e0b;
    --amber-dim: #92400e;
    --red: #ef4444;
    --red-dim: #991b1b;
    --purple: #a855f7;
    --purple-dim: #6b21a8;
    --cyan: #06b6d4;
    --text: #e8eaf0;
    --text2: #9ba3b2;
    --text3: #5c6470;
    --mono: 'IBM Plex Mono', monospace;
    --sans: 'Inter', sans-serif;
    --display: 'Syne', sans-serif;
  }

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

  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
  }

  /* ── NAV ── */
  .nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(14,15,17,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 40px;
    display: flex; align-items: center; gap: 0;
    height: 52px;
  }
  .nav-logo {
    font-family: var(--display);
    font-weight: 800;
    font-size: 16px;
    color: var(--blue);
    letter-spacing: 0.04em;
    margin-right: 32px;
    white-space: nowrap;
  }
  .nav-logo span { color: var(--text3); font-weight: 400; }
  .nav-tabs { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
  .nav-tabs::-webkit-scrollbar { display: none; }
  .nav-tab {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text3);
    cursor: pointer;
    border: none;
    background: transparent;
    white-space: nowrap;
    transition: all 0.15s;
    font-family: var(--sans);
  }
  .nav-tab:hover { color: var(--text); background: var(--surface); }
  .nav-tab.active { color: var(--blue); background: var(--blue-glow); }

  /* ── LAYOUT ── */
  .page { display: none; padding: 40px; max-width: 1200px; margin: 0 auto; }
  .page.active { display: block; }

  /* ── SECTION HEADER ── */
  .section-label {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text3);
    margin-bottom: 12px;
  }
  .section-label::before {
    content: '';
    display: block; width: 20px; height: 1px;
    background: var(--border2);
  }
  .page-title {
    font-family: var(--display);
    font-size: 28px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 6px;
    letter-spacing: -0.02em;
  }
  .page-subtitle {
    color: var(--text2);
    font-size: 14px;
    margin-bottom: 40px;
  }

  /* ── FLOW DIAGRAMS ── */
  .flow-title {
    font-family: var(--display);
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 20px;
    display: flex; align-items: center; gap: 10px;
  }
  .flow-badge {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.08em;
  }
  .badge-blue { background: var(--blue-glow); color: var(--blue); border: 1px solid rgba(59,130,246,0.3); }
  .badge-green { background: var(--green-glow); color: var(--green); border: 1px solid rgba(34,197,94,0.25); }
  .badge-amber { background: rgba(245,158,11,0.1); color: var(--amber); border: 1px solid rgba(245,158,11,0.25); }
  .badge-red { background: rgba(239,68,68,0.1); color: var(--red); border: 1px solid rgba(239,68,68,0.25); }
  .badge-purple { background: rgba(168,85,247,0.1); color: var(--purple); border: 1px solid rgba(168,85,247,0.25); }
  .badge-cyan { background: rgba(6,182,212,0.1); color: var(--cyan); border: 1px solid rgba(6,182,212,0.25); }

  /* ── STEPS FLOW ── */
  .steps-flow {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
  }
  .step-row {
    display: flex;
    align-items: stretch;
    gap: 0;
  }
  .step-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 44px;
    flex-shrink: 0;
  }
  .step-num {
    width: 28px; height: 28px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 600;
    flex-shrink: 0;
    margin-top: 14px;
  }
  .step-line {
    width: 1px;
    flex: 1;
    min-height: 16px;
  }
  .step-card {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 18px;
    margin: 4px 0;
    transition: border-color 0.2s;
    position: relative;
  }
  .step-card:hover { border-color: var(--border2); }
  .step-card-title {
    font-weight: 600;
    font-size: 13px;
    color: var(--text);
    margin-bottom: 4px;
  }
  .step-card-desc {
    font-size: 12px;
    color: var(--text2);
    line-height: 1.5;
  }
  .step-card-meta {
    margin-top: 8px;
    display: flex; gap: 8px; flex-wrap: wrap;
  }
  .meta-tag {
    font-family: var(--mono);
    font-size: 10px;
    padding: 2px 7px;
    border-radius: 4px;
    background: var(--surface2);
    color: var(--text3);
    border: 1px solid var(--border);
  }

  /* Colors for step nums */
  .color-blue .step-num { background: var(--blue-glow); color: var(--blue); border: 1px solid rgba(59,130,246,0.3); }
  .color-blue .step-line { background: linear-gradient(to bottom, rgba(59,130,246,0.4), transparent); }
  .color-green .step-num { background: var(--green-glow); color: var(--green); border: 1px solid rgba(34,197,94,0.25); }
  .color-green .step-line { background: linear-gradient(to bottom, rgba(34,197,94,0.3), transparent); }
  .color-amber .step-num { background: rgba(245,158,11,0.1); color: var(--amber); border: 1px solid rgba(245,158,11,0.25); }
  .color-amber .step-line { background: linear-gradient(to bottom, rgba(245,158,11,0.3), transparent); }
  .color-purple .step-num { background: rgba(168,85,247,0.1); color: var(--purple); border: 1px solid rgba(168,85,247,0.25); }
  .color-purple .step-line { background: linear-gradient(to bottom, rgba(168,85,247,0.3), transparent); }
  .color-cyan .step-num { background: rgba(6,182,212,0.1); color: var(--cyan); border: 1px solid rgba(6,182,212,0.25); }
  .color-cyan .step-line { background: linear-gradient(to bottom, rgba(6,182,212,0.3), transparent); }

  /* branch */
  .branch-row {
    display: flex; gap: 12px; margin: 4px 0 4px 44px;
  }
  .branch-card {
    flex: 1;
    border-radius: 8px;
    padding: 12px 14px;
    font-size: 12px;
    border: 1px dashed;
  }
  .branch-yes { background: var(--green-glow); border-color: rgba(34,197,94,0.3); }
  .branch-no { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.3); }
  .branch-maybe { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); }
  .branch-label {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
  }
  .branch-yes .branch-label { color: var(--green); }
  .branch-no .branch-label { color: var(--red); }
  .branch-maybe .branch-label { color: var(--amber); }
  .branch-text { color: var(--text2); }

  /* ── EMAIL SEQUENCE CARDS ── */
  .email-sequence { display: flex; flex-direction: column; gap: 0; }
  .email-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 0;
    position: relative;
  }
  .email-connector {
    display: flex; justify-content: center; height: 20px;
    position: relative;
  }
  .email-connector::before {
    content: '';
    position: absolute;
    left: 50%; top: 0;
    width: 1px; height: 100%;
    background: var(--border2);
  }
  .email-connector-arrow {
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--surface2);
    border: 1px solid var(--border2);
    display: flex; align-items: center; justify-content: center;
    font-size: 8px; color: var(--text3);
    z-index: 1;
  }
  .email-header {
    padding: 12px 16px;
    display: flex; align-items: center; gap: 12px;
    border-bottom: 1px solid var(--border);
  }
  .email-day {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--text3);
    white-space: nowrap;
  }
  .email-subject {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    flex: 1;
  }
  .email-body {
    padding: 12px 16px;
    font-size: 12px;
    color: var(--text2);
    line-height: 1.6;
  }
  .email-cta {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 8px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--blue);
    background: var(--blue-glow);
    border: 1px solid rgba(59,130,246,0.25);
    padding: 3px 10px;
    border-radius: 4px;
  }
  .if-no-reply {
    margin-left: 44px;
    padding: 6px 12px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 4px;
  }

  /* ── TOOL ARCHITECTURE ── */
  .tool-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
  }
  .tool-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    transition: border-color 0.2s;
  }
  .tool-card:hover { border-color: var(--border2); }
  .tool-card-header {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 14px;
  }
  .tool-icon {
    width: 36px; height: 36px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 700;
  }
  .tool-name {
    font-family: var(--display);
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
  }
  .tool-role {
    font-size: 11px;
    color: var(--text3);
    font-family: var(--mono);
  }
  .tool-uses { display: flex; flex-direction: column; gap: 6px; }
  .tool-use-item {
    display: flex; align-items: flex-start; gap: 8px;
    font-size: 12px; color: var(--text2);
  }
  .tool-use-item::before {
    content: '→';
    color: var(--text3);
    font-size: 11px;
    margin-top: 1px;
    flex-shrink: 0;
  }

  /* ── TERRITORY SPLIT ── */
  .territory-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .rep-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
  }
  .rep-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 12px;
  }
  .rep-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--display);
    font-size: 14px;
    font-weight: 800;
  }
  .rep-name {
    font-family: var(--display);
    font-size: 15px;
    font-weight: 700;
  }
  .rep-region {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 0.08em;
  }
  .rep-body { padding: 16px 20px; }
  .rep-section-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
    margin-top: 14px;
  }
  .rep-section-label:first-child { margin-top: 0; }
  .region-tag {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 12px;
    color: var(--text2);
    padding: 4px 10px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    margin: 2px;
  }
  .kpi-row {
    display: flex; justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
  }
  .kpi-row:last-child { border-bottom: none; }
  .kpi-label { color: var(--text2); }
  .kpi-val { color: var(--text); font-weight: 600; font-family: var(--mono); font-size: 11px; }

  /* ── INFRA DIAGRAM ── */
  .infra-row {
    display: flex; align-items: stretch; gap: 12px;
    margin-bottom: 12px;
  }
  .infra-label-col {
    width: 100px;
    display: flex; align-items: center;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-align: right;
    justify-content: flex-end;
  }
  .infra-arrow {
    width: 24px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text3);
    font-size: 14px;
    flex-shrink: 0;
  }
  .infra-items { display: flex; gap: 8px; flex-wrap: wrap; flex: 1; align-items: center; }
  .infra-item {
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid;
    display: flex; align-items: center; gap: 6px;
  }
  .infra-item .dot {
    width: 6px; height: 6px;
    border-radius: 50%;
  }

  /* ── TIMELINE ── */
  .timeline { position: relative; margin-left: 16px; }
  .timeline-item {
    display: flex; gap: 16px; padding-bottom: 20px;
    position: relative;
  }
  .timeline-item::before {
    content: '';
    position: absolute;
    left: -16px; top: 8px;
    width: 1px;
    height: 100%;
    background: var(--border);
  }
  .timeline-item:last-child::before { display: none; }
  .timeline-dot {
    position: absolute;
    left: -20px; top: 6px;
    width: 8px; height: 8px;
    border-radius: 50%;
    border: 2px solid var(--bg);
    flex-shrink: 0;
  }
  .timeline-day {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    white-space: nowrap;
    padding-top: 2px;
    width: 60px;
    flex-shrink: 0;
  }
  .timeline-content { flex: 1; }
  .timeline-title { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 2px; }
  .timeline-desc { font-size: 12px; color: var(--text2); }

  /* ── GRID LAYOUTS ── */
  .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 32px; }
  .three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 32px; }

  /* ── CALLOUT BOX ── */
  .callout {
    border-radius: 10px;
    padding: 16px 20px;
    margin-bottom: 24px;
    display: flex; gap: 14px;
  }
  .callout-blue { background: var(--blue-glow); border: 1px solid rgba(59,130,246,0.25); }
  .callout-green { background: var(--green-glow); border: 1px solid rgba(34,197,94,0.25); }
  .callout-amber { background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.2); }
  .callout-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
  .callout-text { font-size: 13px; color: var(--text2); line-height: 1.6; }
  .callout-text strong { color: var(--text); }

  /* ── DIVIDER ── */
  .divider {
    height: 1px;
    background: var(--border);
    margin: 32px 0;
  }

  /* ── ICP TRIGGER TIERS ── */
  .tier-grid { display: flex; flex-direction: column; gap: 8px; }
  .tier-card {
    display: flex; gap: 16px; align-items: stretch;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
  }
  .tier-icon {
    width: 52px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    padding: 14px;
  }
  .tier-content { padding: 12px 16px 12px 0; flex: 1; }
  .tier-title { font-weight: 600; font-size: 13px; color: var(--text); margin-bottom: 4px; }
  .tier-signals { font-size: 12px; color: var(--text2); }
  .tier-badge {
    align-self: center;
    margin-right: 14px;
    font-family: var(--mono);
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .tier1-bg { background: rgba(239,68,68,0.08); }
  .tier1-icon { background: rgba(239,68,68,0.1); }
  .tier1-badge { background: rgba(239,68,68,0.15); color: var(--red); border: 1px solid rgba(239,68,68,0.3); }
  .tier2-bg { background: rgba(245,158,11,0.05); }
  .tier2-icon { background: rgba(245,158,11,0.1); }
  .tier2-badge { background: rgba(245,158,11,0.12); color: var(--amber); border: 1px solid rgba(245,158,11,0.3); }
  .tier3-bg { background: var(--surface); }
  .tier3-icon { background: rgba(99,102,241,0.1); }
  .tier3-badge { background: rgba(99,102,241,0.12); color: #818cf8; border: 1px solid rgba(99,102,241,0.3); }

  /* scrollbar */
  ::-webkit-scrollbar { width: 6px; height: 6px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

  @media (max-width: 768px) {
    .page { padding: 20px; }
    .two-col, .three-col, .tool-grid, .territory-grid { grid-template-columns: 1fr; }
    .nav { padding: 0 16px; }
  }