:root {
      color-scheme: dark;
      --bg: #0b1020;
      --sidebar: #0d1324;
      --card: #151b2f;
      --surface: #111827;
      --surface-2: #1a2338;
      --control-bg: #1d263a;
      --border: #2a3551;
      --border-soft: rgba(148, 163, 184, 0.18);
      --text: #e8edf8;
      --text-strong: #f8fafc;
      --muted: #94a3b8;
      --green: #22c55e;
      --red: #ef4444;
      --yellow: #f59e0b;
      --blue: #3b82f6;
      --danger: #dc2626;
      --accent: #4f8cff;
      --accent-soft: rgba(79, 140, 255, 0.14);
      --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
      --nav-hover: rgba(255, 255, 255, 0.05);
      --nav-section-bg: rgba(255, 255, 255, 0.032);
      --nav-section-bg-2: rgba(255, 255, 255, 0.012);
      --nav-section-border: rgba(148, 163, 184, 0.15);
      --nav-section-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 14px 32px rgba(0, 0, 0, 0.18);
      --table-row: rgba(255, 255, 255, 0.04);
    }
    :root[data-theme="light"] {
      color-scheme: light;
      --bg: #f5f7fb;
      --sidebar: #ffffff;
      --card: #ffffff;
      --surface: #f8fafc;
      --surface-2: #eef3f8;
      --control-bg: #f8fafc;
      --border: #d7deea;
      --border-soft: rgba(15, 23, 42, 0.10);
      --text: #172033;
      --text-strong: #0f172a;
      --muted: #64748b;
      --green: #16a34a;
      --red: #dc2626;
      --yellow: #d97706;
      --blue: #2563eb;
      --danger: #b91c1c;
      --accent: #2563eb;
      --accent-soft: rgba(37, 99, 235, 0.10);
      --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
      --nav-hover: rgba(15, 23, 42, 0.04);
      --nav-section-bg: rgba(255, 255, 255, 0.84);
      --nav-section-bg-2: rgba(248, 250, 252, 0.62);
      --nav-section-border: rgba(15, 23, 42, 0.09);
      --nav-section-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85), 0 14px 32px rgba(15, 23, 42, 0.06);
      --table-row: rgba(15, 23, 42, 0.04);
    }
    * { box-sizing: border-box; }
    html, body { height: 100%; }
    body {
      font-family: 'Pretendard', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      background: var(--bg);
      color: var(--text);
      margin: 0;
      line-height: 1.5;
    }

    /* ─── Layout ─── */
    .app { display: flex; min-height: 100vh; }
    .sidebar {
      width: 264px;
      background: var(--sidebar);
      border-right: 1px solid var(--border);
      padding: 18px 0;
      position: fixed;
      height: 100vh;
      overflow-y: auto;
      display: flex;
      flex-direction: column;
      z-index: 10;
    }
    .main {
      flex: 1;
      margin-left: 264px;
      padding: 24px 28px;
      max-width: calc(100% - 264px);
    }

    /* ─── Sidebar ─── */
    .brand {
      padding: 6px 20px 20px;
      border-bottom: 1px solid var(--border);
      margin-bottom: 8px;
    }
    .brand h1 {
      margin: 0;
      font-size: 16px;
      line-height: 1.35;
      color: var(--text-strong);
      letter-spacing: 0;
    }
    .brand .sub { font-size: 11px; color: var(--muted); margin-top: 4px; }
    .nav { flex: 1; padding: 10px 10px 14px; }
    .nav-section {
      margin: 10px 0 12px;
      padding: 10px 8px 8px;
      border: 1px solid var(--nav-section-border);
      border-radius: 16px;
      background:
        linear-gradient(145deg, var(--nav-section-bg), var(--nav-section-bg-2)),
        radial-gradient(circle at 20% 0%, rgba(79, 140, 255, 0.12), transparent 32%);
      box-shadow: var(--nav-section-shadow);
      backdrop-filter: blur(16px);
    }
    .nav-section:has(.nav-item.active) {
      border-color: rgba(79, 140, 255, 0.34);
      background:
        linear-gradient(145deg, rgba(79, 140, 255, 0.10), var(--nav-section-bg-2)),
        radial-gradient(circle at 18% 0%, rgba(79, 140, 255, 0.18), transparent 34%);
    }
    .nav-section-title {
      font-size: 10px;
      color: var(--muted);
      padding: 0 8px 8px;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      font-weight: 700;
    }
    .nav-item {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 9px 12px;
      border-radius: 10px;
      cursor: pointer;
      font-size: 14px;
      color: var(--muted);
      user-select: none;
      margin-bottom: 3px;
      border: 1px solid transparent;
      transition: background 0.15s, color 0.15s, border-color 0.15s;
    }
    .nav-item:hover { background: var(--nav-hover); color: var(--text-strong); }
    .nav-item.active {
      background: var(--accent-soft);
      color: var(--text-strong);
      font-weight: 600;
      border-color: rgba(79, 140, 255, 0.28);
    }
    .nav-item.active::before {
      content: '';
      width: 3px;
      align-self: stretch;
      border-radius: 999px;
      background: var(--accent);
      margin-left: -6px;
    }
    .nav-item .icon {
      width: 20px;
      height: 20px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: currentColor;
      flex: 0 0 20px;
    }
    .nav-item .icon svg { width: 17px; height: 17px; stroke-width: 1.9; }
    .user-bar {
      padding: 14px 20px;
      border-top: 1px solid var(--border);
      font-size: 12px;
    }
    .user-bar .email {
      color: var(--muted);
      word-break: break-all;
      margin-bottom: 8px;
    }
    .theme-switch {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 4px;
      padding: 4px;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 9px;
      margin: 10px 0;
    }
    .theme-option {
      padding: 6px 0;
      border-radius: 6px;
      border: none;
      background: transparent;
      color: var(--muted);
      font-size: 11px;
      font-weight: 700;
      cursor: pointer;
    }
    .theme-option.active {
      background: var(--accent-soft);
      color: var(--accent);
    }
    .user-bar button {
      font-size: 12px;
      padding: 6px 10px;
      width: 100%;
    }

    /* ─── Mobile ─── */
    .menu-toggle {
      display: none;
      position: fixed; top: 16px; left: 16px;
      z-index: 20;
      background: var(--card);
      color: var(--text);
      border: 1px solid var(--border);
      padding: 8px 12px;
      border-radius: 6px;
      cursor: pointer;
    }
    @media (max-width: 768px) {
      .sidebar { transform: translateX(-100%); transition: transform 0.25s; }
      .sidebar.open { transform: translateX(0); }
      .main { margin-left: 0; max-width: 100%; padding: 60px 16px 20px; }
      .topbar { align-items: flex-start; flex-direction: column; }
      .menu-toggle { display: block; }
    }

    /* ─── Cards ─── */
    .topbar {
      min-height: 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 18px;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border-soft);
    }
    .topbar-title {
      margin: 0;
      font-size: 20px;
      color: var(--text-strong);
      line-height: 1.25;
      letter-spacing: 0;
    }
    .topbar-subtitle {
      color: var(--muted);
      font-size: 12px;
      margin-top: 3px;
    }
    .topbar-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
    .sync-pill {
      border: 1px solid var(--border);
      background: var(--surface);
      color: var(--muted);
      border-radius: 999px;
      padding: 7px 10px;
      font-size: 12px;
      white-space: nowrap;
    }
    .sync-pill[data-tone="ok"] { color: var(--green); border-color: color-mix(in srgb, var(--green), transparent 65%); }
    .sync-pill[data-tone="warn"] { color: var(--yellow); border-color: color-mix(in srgb, var(--yellow), transparent 65%); }
    .sync-pill[data-tone="err"] { color: var(--red); border-color: color-mix(in srgb, var(--red), transparent 65%); }
    .page-title { font-size: 22px; margin: 0 0 16px; font-weight: 600; color: var(--text-strong); }
    .page > .page-title { display: none; }
    .page[data-page="customer-detail"] > .page-title { display: block; }
    .card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 20px;
      margin-bottom: 16px;
      box-shadow: var(--shadow);
    }
    .card h2 {
      margin: 0 0 14px;
      font-size: 13px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      font-weight: 600;
    }
    .crm-section-card {
      position: relative;
      overflow: hidden;
    }
    .crm-dashboard-section {
      border-color: color-mix(in srgb, var(--green), var(--border) 72%);
      background:
        linear-gradient(145deg, color-mix(in srgb, var(--card), var(--green) 3%), var(--card));
    }
    .crm-workspace-section {
      border-color: color-mix(in srgb, var(--accent), var(--border) 70%);
      background:
        linear-gradient(145deg, color-mix(in srgb, var(--card), var(--accent) 4%), var(--card));
    }
    .crm-section-header {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: flex-start;
      margin: -2px 0 16px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border-soft);
    }
    .crm-section-header h2,
    .crm-tabset-title {
      margin: 2px 0 0;
      color: var(--text-strong);
      font-size: 16px;
      font-weight: 800;
      letter-spacing: 0;
      text-transform: none;
    }
    .crm-section-header p,
    .crm-tabset-heading p {
      margin: 6px 0 0;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.5;
    }
    .crm-section-eyebrow {
      color: var(--muted);
      font-size: 10px;
      font-weight: 800;
      letter-spacing: 0.14em;
      text-transform: uppercase;
    }
    .row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
    .stat {
      flex: 1 1 140px;
      min-width: 140px;
      padding: 12px 14px;
      background: rgba(255,255,255,0.03);
      border-radius: 8px;
    }
    .stat-label { font-size: 11px; color: var(--muted); letter-spacing: 0.3px; }
    .stat-value { font-size: 20px; font-weight: 600; margin-top: 4px; }
    .status-dot {
      display: inline-block; width: 10px; height: 10px;
      border-radius: 50%; margin-right: 6px;
    }
    .green { background: var(--green); }
    .red   { background: var(--red); }
    .yellow { background: var(--yellow); }

    /* ─── Buttons ─── */
    button {
      background: var(--blue);
      color: white;
      border: none;
      padding: 11px 16px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: opacity 0.15s;
    }
    button:hover { opacity: 0.9; }
    button:disabled { opacity: 0.4; cursor: not-allowed; }
    button.danger { background: var(--danger); }
    button.warn { background: var(--yellow); color: #333; }
    button.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }
    .actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    input, select {
      color: var(--text);
      background: var(--control-bg);
      border: 1px solid var(--border);
      border-radius: 7px;
      outline: none;
    }
    input:focus, select:focus, button:focus-visible {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px var(--accent-soft);
    }
    .table-toolbar {
      display: grid;
      grid-template-columns: minmax(260px, 1fr) auto auto auto auto;
      gap: 8px;
      align-items: center;
      margin-bottom: 10px;
    }
    .table-toolbar input,
    .table-toolbar select {
      min-height: 42px;
      padding: 9px 12px;
      font-size: 13px;
    }
    .toolbar-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin-bottom: 14px;
      color: var(--muted);
      font-size: 12px;
    }
    .status-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 5px 9px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: var(--surface);
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
    }
    .status-chip[data-tone="ok"] { color: var(--green); border-color: color-mix(in srgb, var(--green), transparent 66%); }
    .status-chip[data-tone="warn"] { color: var(--yellow); border-color: color-mix(in srgb, var(--yellow), transparent 60%); }
    .status-chip[data-tone="err"] { color: var(--red); border-color: color-mix(in srgb, var(--red), transparent 58%); }
    .health-grid,
    .perf-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 10px;
    }
    .health-item,
    .perf-item {
      min-width: 0;
      padding: 12px;
      border: 1px solid var(--border-soft);
      border-radius: 10px;
      background: var(--surface);
    }
    .health-item[data-tone="ok"] { border-color: color-mix(in srgb, var(--green), transparent 65%); }
    .health-item[data-tone="warn"] { border-color: color-mix(in srgb, var(--yellow), transparent 58%); }
    .health-item[data-tone="err"] { border-color: color-mix(in srgb, var(--red), transparent 55%); }
    .health-name,
    .perf-name {
      color: var(--text-strong);
      font-size: 13px;
      font-weight: 700;
    }
    .health-meta,
    .perf-meta {
      margin-top: 5px;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.55;
    }
    .quick-filter-bar,
    .column-toggle-bar {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: wrap;
      margin: 0 0 10px;
    }
    .filter-chip,
    .column-chip {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      min-height: 30px;
      padding: 5px 9px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: var(--surface);
      color: var(--muted);
      font-size: 12px;
      cursor: pointer;
      user-select: none;
    }
    .filter-chip.active,
    .column-chip:has(input:checked) {
      color: var(--accent);
      border-color: color-mix(in srgb, var(--accent), transparent 55%);
      background: var(--accent-soft);
    }
    .column-chip input {
      width: 12px;
      height: 12px;
      accent-color: var(--accent);
    }
    .customers-table.hide-phone .col-phone,
    .customers-table.hide-segments .col-segments,
    .customers-table.hide-ltv .col-ltv,
    .customers-table.hide-order .col-order,
    .customers-table.hide-health .col-health {
      display: none;
    }

    /* ─── CRM ─── */
    .crm-dashboard-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
      gap: 16px;
      align-items: start;
    }
    .crm-summary-grid {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 10px;
      margin-bottom: 14px;
    }
    .crm-summary-card {
      min-width: 0;
      padding: 13px 14px;
      border: 1px solid var(--border-soft);
      border-radius: 12px;
      background:
        linear-gradient(145deg, color-mix(in srgb, var(--surface), var(--accent) 3%), var(--surface));
    }
    .crm-summary-card[data-tone="ok"] {
      border-color: color-mix(in srgb, var(--green), transparent 72%);
    }
    .crm-summary-card[data-tone="warn"] {
      border-color: color-mix(in srgb, var(--yellow), transparent 62%);
    }
    .crm-summary-card[data-tone="err"] {
      border-color: color-mix(in srgb, var(--red), transparent 58%);
    }
    .crm-summary-label {
      color: var(--muted);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.02em;
    }
    .crm-summary-value {
      margin-top: 6px;
      color: var(--text-strong);
      font-size: 21px;
      font-weight: 800;
      line-height: 1.15;
      font-variant-numeric: tabular-nums;
      overflow-wrap: anywhere;
    }
    .crm-summary-meta {
      margin-top: 6px;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.45;
      min-height: 16px;
    }
    .crm-dashboard-note {
      margin: -2px 0 14px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.55;
    }
    .crm-track-card {
      flex: 1 1 220px;
      min-width: 220px;
      padding: 14px;
      border: 1px solid var(--border-soft);
      border-radius: 12px;
      background:
        linear-gradient(145deg, color-mix(in srgb, var(--surface), var(--accent) 4%), var(--surface));
    }
    .crm-track-head {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .crm-track-icon {
      width: 36px;
      height: 36px;
      display: grid;
      place-items: center;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--card);
      color: var(--accent);
      font-size: 17px;
    }
    .crm-track-label {
      color: var(--text-strong);
      font-size: 14px;
      font-weight: 750;
    }
    .crm-track-meta {
      margin-top: 3px;
      color: var(--muted);
      font-size: 12px;
    }
    .crm-stage-meter {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(26px, 1fr));
      gap: 5px;
      margin-top: 12px;
    }
    .crm-stage-meter span {
      min-height: 22px;
      display: grid;
      place-items: center;
      border: 1px solid var(--border-soft);
      border-radius: 999px;
      color: var(--muted);
      font-size: 11px;
      font-variant-numeric: tabular-nums;
      background: var(--card);
    }
    .crm-stage-section {
      padding: 0 0 18px;
      margin-bottom: 18px;
      border-bottom: 1px solid var(--border-soft);
    }
    .crm-stage-section:last-child {
      padding-bottom: 0;
      margin-bottom: 0;
      border-bottom: 0;
    }
    .crm-section-head {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: center;
      margin-bottom: 10px;
      color: var(--text-strong);
      font-size: 14px;
    }
    .crm-section-head span {
      color: var(--muted);
      font-size: 12px;
    }
    .crm-stage-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 10px;
    }
    .crm-stage-card {
      min-width: 0;
      padding: 12px;
      border: 1px solid var(--border-soft);
      border-radius: 12px;
      background: var(--surface);
    }
    .crm-stage-title {
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
    }
    .crm-stage-count {
      margin: 4px 0 8px;
      color: var(--text-strong);
      font-size: 21px;
      font-weight: 800;
      font-variant-numeric: tabular-nums;
    }
    .crm-recommendation-stack,
    .crm-customer-list {
      display: grid;
      gap: 8px;
    }
    .crm-rec-card,
    .crm-customer-card {
      width: 100%;
      min-width: 0;
      text-align: left;
      border: 1px solid var(--border-soft);
      border-radius: 12px;
      background: var(--surface);
      color: var(--text);
    }
    .crm-rec-card {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px;
    }
    .crm-rec-card b,
    .crm-customer-main b {
      color: var(--text-strong);
      font-size: 13px;
    }
    .crm-rec-card span,
    .crm-customer-main span,
    .crm-customer-meta {
      color: var(--muted);
      font-size: 12px;
      line-height: 1.45;
    }
    .crm-customer-card {
      padding: 11px 12px;
    }
    .crm-customer-card:hover,
    .crm-rec-card:hover {
      opacity: 1;
      border-color: color-mix(in srgb, var(--accent), transparent 60%);
      background: color-mix(in srgb, var(--surface), var(--accent) 5%);
    }
    .crm-customer-main,
    .crm-customer-meta,
    .crm-profile-row {
      display: flex;
      flex-wrap: wrap;
      gap: 6px 10px;
      align-items: center;
      min-width: 0;
    }
    .crm-customer-meta,
    .crm-profile-row {
      margin-top: 6px;
    }
    .crm-tabset {
      display: grid;
      gap: 14px;
      margin-top: 4px;
      padding: 14px;
      min-width: 0;
      border: 1px solid color-mix(in srgb, var(--accent), var(--border) 72%);
      border-radius: 12px;
      background:
        linear-gradient(145deg, color-mix(in srgb, var(--surface), var(--accent) 4%), var(--surface));
    }
    .crm-tabset-heading {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: flex-start;
      min-width: 0;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-soft);
    }
    .crm-tab-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      padding: 4px;
      border: 1px solid var(--border-soft);
      border-radius: 999px;
      background: color-mix(in srgb, var(--card), var(--surface) 45%);
      width: fit-content;
      max-width: 100%;
    }
    .crm-tab {
      width: auto;
      min-height: 34px;
      padding: 7px 12px;
      border: 1px solid transparent;
      border-radius: 999px;
      background: transparent;
      color: var(--muted);
      font-size: 12px;
      font-weight: 750;
    }
    .crm-tab.active {
      border-color: color-mix(in srgb, var(--accent), transparent 25%);
      background: color-mix(in srgb, var(--accent), transparent 82%);
      color: var(--text-strong);
    }
    .crm-tab-panel {
      display: none;
      min-width: 0;
    }
    .crm-tab-panel.active {
      display: grid;
      gap: 14px;
      padding-top: 2px;
    }
    .crm-campaign-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
      gap: 10px;
      min-width: 0;
    }
    .crm-campaign-card {
      width: 100%;
      min-width: 0;
      padding: 13px;
      text-align: left;
      border: 1px solid var(--border-soft);
      border-radius: 12px;
      background: var(--surface);
      color: var(--text);
    }
    .crm-campaign-card:hover {
      border-color: color-mix(in srgb, var(--accent), transparent 50%);
      background: color-mix(in srgb, var(--surface), var(--accent) 5%);
    }
    .crm-campaign-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 10px;
      min-width: 0;
    }
    .crm-campaign-head b {
      display: block;
      color: var(--text-strong);
      font-size: 13px;
    }
    .crm-campaign-head span:not(.status-chip) {
      display: block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.4;
    }
    .crm-campaign-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 6px;
      margin-top: 12px;
    }
    .crm-campaign-metrics span {
      min-width: 0;
      padding: 7px 8px;
      border: 1px solid var(--border-soft);
      border-radius: 999px;
      color: var(--muted);
      font-size: 11px;
      text-align: center;
      background: var(--card);
    }
    .crm-campaign-metrics b {
      color: var(--text-strong);
      font-variant-numeric: tabular-nums;
    }
    .crm-compact-table {
      display: grid;
      gap: 6px;
      min-width: 0;
    }
    .crm-compact-row {
      display: grid;
      grid-template-columns: minmax(220px, 1fr) 100px 80px 100px;
      gap: 10px;
      align-items: center;
      width: 100%;
      padding: 10px 12px;
      border: 1px solid var(--border-soft);
      border-radius: 10px;
      background: var(--surface);
      color: var(--text);
      text-align: left;
    }
    .crm-compact-row b {
      display: block;
      color: var(--text-strong);
      font-size: 13px;
    }
    .crm-compact-row small {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.35;
    }
    .crm-profile-detail h2 {
      margin: 0 0 10px;
      color: var(--text-strong);
      font-size: 14px;
      text-transform: none;
      letter-spacing: 0;
    }
    @media (max-width: 900px) {
      .table-toolbar { grid-template-columns: 1fr; }
      .toolbar-meta { align-items: flex-start; flex-direction: column; }
      .crm-section-header,
      .crm-tabset-heading { flex-direction: column; }
      .crm-tab-list {
        width: 100%;
        border-radius: 12px;
      }
      .crm-dashboard-grid,
      .crm-summary-grid { grid-template-columns: 1fr; }
      .crm-compact-row { grid-template-columns: 1fr; }
      .crm-campaign-metrics { grid-template-columns: 1fr; }
    }
    @media (min-width: 901px) and (max-width: 1320px) {
      .crm-summary-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    }

    /* ─── Financial Analysis ─── */
    .finance-section-card {
      position: relative;
      overflow: hidden;
    }
    .finance-dashboard-section {
      border-color: color-mix(in srgb, var(--yellow), var(--border) 70%);
      background:
        linear-gradient(145deg, color-mix(in srgb, var(--card), var(--yellow) 4%), var(--card));
    }
    .finance-workspace-section {
      border-color: color-mix(in srgb, var(--accent), var(--border) 74%);
      background:
        linear-gradient(145deg, color-mix(in srgb, var(--card), var(--accent) 3%), var(--card));
    }
    .finance-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
      gap: 16px;
      align-items: start;
    }
    .finance-bars,
    .finance-list {
      display: grid;
      gap: 8px;
    }
    .finance-bar-row {
      display: grid;
      grid-template-columns: 74px minmax(120px, 1fr) minmax(160px, 0.38fr);
      gap: 10px;
      align-items: center;
      padding: 10px 12px;
      border: 1px solid var(--border-soft);
      border-radius: 10px;
      background: var(--surface);
    }
    .finance-bar-label {
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
      font-variant-numeric: tabular-nums;
    }
    .finance-bar-track {
      height: 10px;
      border-radius: 999px;
      background: color-mix(in srgb, var(--surface-2), transparent 15%);
      overflow: hidden;
    }
    .finance-bar-track span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--accent), var(--yellow));
    }
    .finance-bar-value {
      text-align: right;
      min-width: 0;
    }
    .finance-bar-value b,
    .finance-money {
      color: var(--text-strong);
      font-variant-numeric: tabular-nums;
    }
    .finance-bar-value small,
    .finance-muted {
      display: block;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.35;
    }
    .finance-list-row {
      display: grid;
      grid-template-columns: 28px minmax(0, 1fr) 110px 96px;
      gap: 10px;
      align-items: center;
      width: 100%;
      padding: 10px 12px;
      border: 1px solid var(--border-soft);
      border-radius: 10px;
      background: var(--surface);
      color: var(--text);
      text-align: left;
    }
    .finance-list-row:hover {
      border-color: color-mix(in srgb, var(--accent), transparent 50%);
      background: color-mix(in srgb, var(--surface), var(--accent) 5%);
      opacity: 1;
    }
    .finance-rank {
      width: 24px;
      height: 24px;
      display: grid;
      place-items: center;
      border-radius: 999px;
      background: var(--accent-soft);
      color: var(--accent);
      font-size: 11px;
      font-weight: 800;
    }
    .finance-list-row b {
      display: block;
      color: var(--text-strong);
      font-size: 13px;
    }
    .finance-list-row small {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.35;
      overflow-wrap: anywhere;
    }
    .finance-table td:first-child {
      max-width: 520px;
    }
    @media (max-width: 1100px) {
      .finance-grid,
      .finance-bar-row,
      .finance-list-row {
        grid-template-columns: 1fr;
      }
      .finance-bar-value {
        text-align: left;
      }
    }

    /* ─── Customer 360 ─── */
    .c360-shell { display: grid; gap: 16px; }
    .c360-hero {
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 20px;
      background:
        linear-gradient(145deg, color-mix(in srgb, var(--card), var(--accent) 5%), var(--card)),
        radial-gradient(circle at 8% 0%, rgba(79, 140, 255, 0.16), transparent 34%);
      box-shadow: var(--shadow);
    }
    .c360-hero-main {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 18px;
      align-items: start;
    }
    .c360-identity {
      display: flex;
      gap: 14px;
      min-width: 0;
    }
    .c360-avatar {
      width: 52px;
      height: 52px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      flex: 0 0 52px;
      color: white;
      background: linear-gradient(145deg, var(--accent), color-mix(in srgb, var(--accent), #111827 35%));
      font-size: 20px;
      font-weight: 800;
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.22), 0 14px 30px rgba(37,99,235,0.22);
    }
    .c360-name {
      margin: 0;
      color: var(--text-strong);
      font-size: 24px;
      line-height: 1.2;
      letter-spacing: 0;
    }
    .c360-meta {
      margin-top: 8px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px 14px;
      color: var(--muted);
      font-size: 12px;
    }
    .c360-segments {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 12px;
    }
    .c360-health {
      min-width: 170px;
      text-align: right;
      padding: 12px 14px;
      border: 1px solid var(--border-soft);
      border-radius: 12px;
      background: var(--surface);
    }
    .c360-health-value {
      font-size: 28px;
      line-height: 1;
      font-weight: 800;
      color: var(--text-strong);
    }
    .c360-health-label {
      margin-top: 6px;
      color: var(--muted);
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }
    .c360-kpis {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 10px;
      margin-top: 18px;
    }
    .c360-kpi {
      min-width: 0;
      border: 1px solid var(--border-soft);
      border-radius: 12px;
      padding: 12px 14px;
      background: var(--surface);
    }
    .c360-kpi-label {
      color: var(--muted);
      font-size: 11px;
      letter-spacing: 0.02em;
    }
    .c360-kpi-value {
      margin-top: 5px;
      color: var(--text-strong);
      font-size: 20px;
      font-weight: 750;
      font-variant-numeric: tabular-nums;
    }
    .c360-tabs {
      display: flex;
      gap: 6px;
      overflow-x: auto;
      padding: 6px;
      border: 1px solid var(--border);
      border-radius: 12px;
      background: var(--card);
    }
    .c360-tab {
      flex: 0 0 auto;
      min-height: 36px;
      padding: 8px 13px;
      border: 1px solid transparent;
      border-radius: 9px;
      background: transparent;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }
    .c360-tab:hover {
      background: var(--nav-hover);
      color: var(--text-strong);
      opacity: 1;
    }
    .c360-tab.active {
      background: var(--accent-soft);
      border-color: color-mix(in srgb, var(--accent), transparent 65%);
      color: var(--accent);
    }
    .c360-panel {
      display: none;
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 18px;
      background: var(--card);
      box-shadow: var(--shadow);
    }
    .c360-panel.active { display: block; }
    .c360-panel h2 {
      margin: 0 0 14px;
      color: var(--text-strong);
      font-size: 15px;
      letter-spacing: 0;
      text-transform: none;
    }
    .c360-panel-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(280px, 0.58fr);
      gap: 14px;
    }
    .info-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
    }
    .info-row {
      min-width: 0;
      padding: 12px;
      border: 1px solid var(--border-soft);
      border-radius: 10px;
      background: var(--surface);
    }
    .info-label {
      color: var(--muted);
      font-size: 11px;
      margin-bottom: 5px;
    }
    .info-value {
      color: var(--text-strong);
      font-size: 13px;
      word-break: break-word;
    }
    .data-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
    }
    .data-table th {
      padding: 9px 8px;
      text-align: left;
      color: var(--muted);
      font-size: 11px;
      font-weight: 700;
      border-bottom: 1px solid var(--border);
      white-space: nowrap;
    }
    .data-table td {
      padding: 10px 8px;
      border-bottom: 1px solid var(--table-row);
      vertical-align: top;
    }
    .timeline {
      display: grid;
      gap: 10px;
    }
    .timeline-item {
      display: grid;
      grid-template-columns: 110px minmax(0, 1fr);
      gap: 12px;
      padding: 12px;
      border: 1px solid var(--border-soft);
      border-radius: 10px;
      background: var(--surface);
    }
    .timeline-date {
      color: var(--muted);
      font-size: 12px;
      font-variant-numeric: tabular-nums;
    }
    .timeline-title {
      color: var(--text-strong);
      font-size: 13px;
      font-weight: 700;
    }
    .timeline-desc {
      margin-top: 3px;
      color: var(--muted);
      font-size: 12px;
    }
    .insight-list {
      display: grid;
      gap: 8px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .insight-list li {
      padding: 11px 12px;
      border: 1px solid var(--border-soft);
      border-radius: 10px;
      background: var(--surface);
      color: var(--text);
      font-size: 13px;
    }
    .learning-progress-layout {
      display: grid;
      gap: 14px;
      min-width: 0;
    }
    .learning-progress-summary {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 10px;
    }
    .learning-progress-stat,
    .learning-course-card {
      min-width: 0;
      border: 1px solid var(--border-soft);
      border-radius: 12px;
      background: var(--surface);
    }
    .learning-progress-stat {
      padding: 13px 14px;
    }
    .learning-progress-stat span,
    .learning-course-meta,
    .learning-step-type {
      color: var(--muted);
      font-size: 11px;
    }
    .learning-progress-stat b {
      display: block;
      margin-top: 6px;
      color: var(--text-strong);
      font-size: 20px;
      line-height: 1.2;
      font-variant-numeric: tabular-nums;
    }
    .learning-progress-stat small {
      display: block;
      margin-top: 5px;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.35;
    }
    .learning-progress-bar {
      height: 8px;
      margin-top: 10px;
      border-radius: 999px;
      background: color-mix(in srgb, var(--muted), transparent 84%);
      overflow: hidden;
    }
    .learning-progress-bar span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: var(--accent);
      transition: width 180ms ease;
    }
    .learning-progress-bar.good span { background: var(--green); }
    .learning-progress-bar.warn span { background: var(--yellow); }
    .learning-progress-bar.danger span { background: var(--red); }
    .learning-progress-bar.is-empty span { background: var(--muted); }
    .learning-course-list {
      display: grid;
      gap: 12px;
      min-width: 0;
    }
    .learning-course-card {
      padding: 14px;
    }
    .learning-course-head {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 12px;
      align-items: start;
    }
    .learning-course-head h3 {
      margin: 0 0 5px;
      color: var(--text-strong);
      font-size: 14px;
      line-height: 1.35;
      letter-spacing: 0;
    }
    .learning-course-score {
      min-width: 74px;
      padding: 8px 10px;
      border: 1px solid var(--border-soft);
      border-radius: 10px;
      color: var(--text-strong);
      text-align: center;
      font-size: 13px;
      font-weight: 800;
      font-variant-numeric: tabular-nums;
      background: var(--card);
    }
    .learning-course-score.good { color: var(--green); }
    .learning-course-score.warn { color: var(--yellow); }
    .learning-course-score.danger { color: var(--red); }
    .learning-course-metrics {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 8px;
      margin-top: 12px;
    }
    .learning-course-metrics span {
      min-width: 0;
      padding: 8px 10px;
      border: 1px solid var(--border-soft);
      border-radius: 9px;
      color: var(--muted);
      font-size: 11px;
      background: var(--card);
    }
    .learning-course-metrics b {
      color: var(--text-strong);
      font-variant-numeric: tabular-nums;
    }
    .learning-course-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px 12px;
      margin-top: 10px;
    }
    .learning-step-list {
      display: grid;
      gap: 6px;
      margin-top: 12px;
      max-height: 360px;
      overflow-y: auto;
      padding-right: 2px;
    }
    .learning-step-row {
      display: grid;
      grid-template-columns: 62px 48px minmax(0, 1fr);
      gap: 8px;
      align-items: center;
      padding: 8px 10px 8px calc(10px + var(--depth) * 16px);
      border: 1px solid var(--border-soft);
      border-radius: 9px;
      background: color-mix(in srgb, var(--card), var(--surface) 42%);
    }
    .learning-step-status {
      width: fit-content;
      padding: 4px 7px;
      border: 1px solid color-mix(in srgb, var(--muted), transparent 70%);
      border-radius: 999px;
      color: var(--muted);
      font-size: 10px;
      font-weight: 800;
    }
    .learning-step-status.done {
      border-color: color-mix(in srgb, var(--green), transparent 60%);
      color: var(--green);
      background: color-mix(in srgb, var(--green), transparent 88%);
    }
    .learning-step-title {
      min-width: 0;
      color: var(--text);
      font-size: 12px;
      line-height: 1.35;
      word-break: keep-all;
      overflow-wrap: anywhere;
    }
    .privacy-note,
    .empty-state {
      padding: 14px;
      border: 1px dashed var(--border);
      border-radius: 10px;
      background: color-mix(in srgb, var(--surface), transparent 14%);
      color: var(--muted);
      font-size: 12px;
    }
    .note-editor {
      display: grid;
      gap: 10px;
    }
    .note-editor textarea {
      width: 100%;
      min-height: 150px;
      resize: vertical;
      padding: 11px 12px;
      color: var(--text);
      background: var(--control-bg);
      border: 1px solid var(--border);
      border-radius: 9px;
      font: inherit;
    }
    .note-editor-row {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 8px;
    }
    .note-editor-row input,
    .note-editor-row select {
      min-height: 38px;
      padding: 8px 10px;
      font-size: 13px;
    }
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      border: 1px solid var(--border-soft);
      border-radius: 999px;
      background: var(--surface);
      color: var(--text);
    }
    @media (max-width: 1100px) {
      .c360-hero-main,
      .c360-panel-grid { grid-template-columns: 1fr; }
      .c360-health { text-align: left; }
      .c360-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .learning-progress-summary,
      .learning-course-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
    @media (max-width: 640px) {
      .c360-identity { flex-direction: column; }
      .c360-kpis,
      .info-grid,
      .note-editor-row,
      .learning-progress-summary,
      .learning-course-metrics,
      .learning-course-head,
      .learning-step-row { grid-template-columns: 1fr; }
      .timeline-item { grid-template-columns: 1fr; }
      .learning-step-row { padding-left: 10px; }
    }

    /* ─── Login ─── */
    #login-card {
      max-width: 420px;
      margin: 80px auto;
      text-align: center;
    }
    #login-btn {
      background: white; color: #333;
      padding: 12px 24px; font-size: 15px;
      display: inline-flex; align-items: center; gap: 10px;
      margin-top: 12px;
    }
    #login-error { color: var(--red); margin-top: 12px; font-size: 13px; }

    /* ─── Log ─── */
    #log, #log-full {
      font-family: 'SF Mono', Monaco, monospace;
      font-size: 12px;
      background: rgba(0,0,0,0.3);
      padding: 12px;
      border-radius: 6px;
      max-height: 260px;
      overflow-y: auto;
      white-space: pre-wrap;
      color: #c8d1e0;
    }
    #log-full { max-height: 520px; }

    .muted { color: var(--muted); font-size: 12px; }
    .page { display: none; }
    .page.active { display: block; }

    .warning-note {
      font-size: 12px;
      color: var(--muted);
      margin-top: 14px;
      padding-top: 12px;
      border-top: 1px solid var(--border);
    }

    /* ─── Sub-tabs (within a page) ─── */
    .subtabs {
      display: flex;
      gap: 6px;
      padding: 6px;
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 10px;
      margin-bottom: 16px;
      overflow-x: auto;
    }
    .subtab {
      padding: 8px 16px;
      border-radius: 7px;
      cursor: pointer;
      font-size: 13px;
      color: var(--muted);
      user-select: none;
      white-space: nowrap;
      transition: background 0.15s, color 0.15s;
    }
    .subtab:hover { color: var(--text); background: rgba(255,255,255,0.03); }
    .subtab.active {
      background: rgba(74,111,255,0.15);
      color: var(--text);
      font-weight: 600;
    }
    .subpage { display: none; }
    .subpage.active { display: block; }

    /* ─── Modal ─── */
    .modal-backdrop {
      display: none;
      position: fixed; inset: 0;
      background: rgba(0,0,0,0.6);
      z-index: 100;
      backdrop-filter: blur(3px);
    }
    .modal-backdrop.open { display: flex; align-items: center; justify-content: center; }
    .modal {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 14px;
      width: min(720px, 95vw);
      max-height: 85vh;
      display: flex; flex-direction: column;
      box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    }
    .modal-head {
      padding: 18px 22px;
      border-bottom: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .modal-head h3 {
      margin: 0;
      font-size: 18px;
    }
    .modal-close {
      background: transparent;
      border: none;
      color: var(--muted);
      font-size: 24px;
      cursor: pointer;
      padding: 0;
      width: 32px; height: 32px;
      line-height: 1;
    }
    .modal-close:hover { color: var(--text); }
    .modal-body {
      padding: 18px 22px;
      overflow-y: auto;
      flex: 1;
    }
    .clickable-stat {
      cursor: pointer;
      transition: background 0.15s, transform 0.1s;
    }
    .clickable-stat:hover {
      background: rgba(74,111,255,0.08);
      transform: translateY(-1px);
    }
    .clickable-stat::after {
      content: ' 🔍';
      font-size: 10px;
      opacity: 0.5;
    }