:root {
      --bg-gradient: radial-gradient(at 0% 0%, hsla(242, 100%, 90%, 1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, hsla(168, 100%, 88%, 1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, hsla(285, 100%, 91%, 1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, hsla(202, 100%, 88%, 1) 0px, transparent 50%);
      --bg-color: #f0f4fd;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-subtle: #475569;
      /* slate-600 instead of slate-500 for WCAG AA */
      --card-bg: rgba(255, 255, 255, 0.65);
      --card-border: rgba(255, 255, 255, 0.72);
      --card-shadow: 0 12px 40px rgba(31, 38, 135, 0.07);
      --input-bg: rgba(255, 255, 255, 0.55);
      --input-border: rgba(255, 255, 255, 0.8);
      --primary: #4f46e5;
      /* Indigo 600 for contrast >= 4.5:1 on #f0f4fd */
      --primary-hover: #3730a3;
      /* Indigo 800 for high-contrast active states */
      --primary-rgb: 79, 70, 229;
      --accent: #7c3aed;
      /* Purple 600 for contrast >= 4.5:1 */
      --success: #047857;
      /* Emerald 700 for high-contrast success state */
      --danger: #b91c1c;
      /* Red 700 for high-contrast error state */
      --nav-bg: rgba(255, 255, 255, 0.45);
      --nav-border: rgba(255, 255, 255, 0.6);
    }

    .dark {
      --bg-gradient: radial-gradient(at 0% 0%, hsla(242, 50%, 12%, 1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, hsla(168, 50%, 10%, 1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, hsla(285, 40%, 12%, 1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, hsla(202, 60%, 11%, 1) 0px, transparent 50%);
      --bg-color: #0b1329;
      --text-main: #f8fafc;
      --text-muted: #cbd5e1;
      --text-subtle: #94a3b8;
      --card-bg: rgba(15, 23, 42, 0.65);
      --card-border: rgba(255, 255, 255, 0.09);
      --card-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
      --input-bg: rgba(15, 23, 42, 0.5);
      --input-border: rgba(255, 255, 255, 0.08);
      --primary: #818cf8;
      --primary-hover: #6366f1;
      --primary-rgb: 129, 140, 248;
      --accent: #a78bfa;
      --success: #34d399;
      --danger: #f87171;
      --nav-bg: rgba(15, 23, 42, 0.52);
      --nav-border: rgba(255, 255, 255, 0.07);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
      background-color: var(--bg-color);
      background-image: var(--bg-gradient);
      background-attachment: fixed;
      color: var(--text-main);
      min-height: 100vh;
      overflow-x: hidden;
      transition: background-color 0.3s ease, color 0.3s ease;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    button,
    input {
      font: inherit;
    }

    ::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }

    ::-webkit-scrollbar-track {
      background: transparent;
    }

    ::-webkit-scrollbar-thumb {
      background: rgba(var(--primary-rgb), 0.25);
      border-radius: 99px;
    }

    ::-webkit-scrollbar-thumb:hover {
      background: rgba(var(--primary-rgb), 0.45);
    }

    /* ───── NAVBAR ───── */
    .bk-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 clamp(20px, 5vw, 60px);
      height: 68px;
      background: var(--nav-bg);
      border-bottom: 1px solid var(--nav-border);
      backdrop-filter: blur(24px) saturate(160%);
      -webkit-backdrop-filter: blur(24px) saturate(160%);
      transition: background 0.3s, border-color 0.3s;
    }

    .bk-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-family: Outfit, sans-serif;
      font-size: 16px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.3px;
    }

    .bk-logo-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 9px;
      display: grid;
      place-items: center;
      color: white;
      font-weight: 900;
      font-size: 15px;
      box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
    }

    .bk-logo strong {
      color: var(--primary);
    }

    nav.bk-links {
      display: flex;
      gap: 30px;
    }

    nav.bk-links a {
      color: var(--text-muted);
      font-size: 13px;
      font-weight: 600;
      transition: color 0.2s;
    }

    nav.bk-links a:hover {
      color: var(--text-main);
    }

    .bk-nav-right {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    /* Theme toggle */
    .theme-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      border-radius: 99px;
      color: var(--text-muted);
      font-size: 11px;
      font-weight: 800;
      cursor: pointer;
      transition: all 0.2s;
      min-height: 44px;
      /* WCAG 44x44px Touch Target */
      min-width: 44px;
      justify-content: center;
    }

    .theme-btn:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    .theme-icon-light {
      display: inline;
    }

    .theme-icon-dark {
      display: none;
    }

    .dark .theme-icon-light {
      display: none;
    }

    .dark .theme-icon-dark {
      display: inline;
    }

    .bk-auth-link {
      background: transparent;
      border: 0;
      color: var(--text-muted);
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      transition: color 0.2s;
    }

    .bk-auth-link:hover {
      color: var(--text-main);
    }

    .bk-btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 9px 20px;
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.85), rgba(139, 92, 246, 0.95));
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 99px;
      color: white;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 16px rgba(var(--primary-rgb), 0.25);
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .dark .bk-btn-primary {
      background: linear-gradient(135deg, rgba(129, 140, 248, 0.9), rgba(167, 139, 250, 0.95));
      color: #0b1329;
    }

    .bk-btn-primary:hover {
      transform: translateY(-1.5px);
      box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.4);
    }

    /* ───── HERO ───── */
    .bk-hero {
      width: min(100% - 48px, 1180px);
      margin: auto;
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: center;
      gap: 56px;
      padding: 50px 0 60px;
    }

    .bk-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 5px 14px;
      background: rgba(var(--primary-rgb), 0.1);
      border: 1px solid rgba(var(--primary-rgb), 0.2);
      border-radius: 99px;
      color: var(--primary);
      font-size: 10px;
      font-weight: 800;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      margin-bottom: 20px;
    }

    .bk-eyebrow::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--primary);
      animation: pulse-dot 1.8s ease-in-out infinite;
    }

    @keyframes pulse-dot {

      0%,
      100% {
        opacity: 1;
        transform: scale(1);
      }

      50% {
        opacity: 0.5;
        transform: scale(0.7);
      }
    }

    .bk-hero h1 {
      font-family: 'Space Grotesk', sans-serif;
      font-size: clamp(28px, 5vw, 58px);
      font-weight: 700;
      letter-spacing: -0.065em;
      line-height: 1.06;
      color: var(--text-main);
      margin-bottom: 20px;
    }

    .bk-hero h1 mark {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .bk-hero-sub {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.85;
      max-width: 440px;
      margin-bottom: 36px;
    }

    .bk-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .bk-btn-soft {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 9px 20px;
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      border-radius: 99px;
      color: var(--text-main);
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.25s;
    }

    .bk-btn-soft:hover {
      border-color: rgba(var(--primary-rgb), 0.4);
      background: rgba(var(--primary-rgb), 0.08);
      transform: translateY(-1.5px);
    }

    /* Floating mock dashboard */
    .bk-dashboard-wrap {
      position: relative;
    }

    .bk-dashboard {
      width: 100%;
      max-width: 720px;
      margin: 0 auto;
      box-sizing: border-box;
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 22px;
      box-shadow: var(--card-shadow);
      backdrop-filter: blur(24px) saturate(160%);
      -webkit-backdrop-filter: blur(24px) saturate(160%);
      overflow: hidden;
      transform: perspective(800px) rotateY(-4deg) rotateX(2deg);
      transition: transform 0.4s ease;
      animation: float-card 4s ease-in-out infinite alternate;
    }

    @keyframes float-card {
      from {
        transform: perspective(800px) rotateY(-4deg) rotateX(2deg) translateY(0);
      }

      to {
        transform: perspective(800px) rotateY(-4deg) rotateX(2deg) translateY(-10px);
      }
    }

    .bk-window-top {
      display: flex;
      align-items: center;
      gap: 7px;
      height: 44px;
      padding: 0 16px;
      border-bottom: 1px solid var(--card-border);
    }

    .bk-window-top i {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }

    .bk-window-top i:nth-child(1) {
      background: #f87171;
    }

    .bk-window-top i:nth-child(2) {
      background: #fbbf24;
    }

    .bk-window-top i:nth-child(3) {
      background: #34d399;
    }

    .bk-window-top b {
      margin-left: auto;
      width: 110px;
      height: 26px;
      border-radius: 99px;
      background: var(--input-bg);
    }

    .bk-window-body {
      display: grid;
      grid-template-columns: 140px 1fr;
    }

    .bk-window-aside {
      padding: 16px 12px;
      background: var(--input-bg);
      border-right: 1px solid var(--card-border);
      min-height: 460px;
    }

    .bk-aside-logo {
      display: flex;
      align-items: center;
      gap: 7px;
      font-family: Outfit, sans-serif;
      font-size: 11px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 22px;
    }

    .bk-aside-logo span {
      width: 22px;
      height: 22px;
      border-radius: 6px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      display: grid;
      place-items: center;
      color: white;
      font-size: 11px;
      font-weight: 900;
    }

    .bk-aside-nav p {
      margin: 0 0 4px;
      padding: 8px 10px;
      border-radius: 8px;
      font-size: 11px;
      font-weight: 600;
      color: var(--text-muted);
      transition: all 0.25s ease;
      cursor: pointer;
    }

    .bk-aside-nav p:hover:not(.active) {
      background: rgba(var(--primary-rgb), 0.08);
      color: var(--text-main);
    }

    .bk-aside-nav p.active {
      background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.85), rgba(139, 92, 246, 0.9));
      color: white;
    }

    .dark .bk-aside-nav p.active {
      color: #0b1329;
    }

    .bk-window-main {
      padding: 18px;
    }

    .bk-dash-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }

    .bk-dash-head h3 {
      font-size: 14px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.3px;
    }

    .bk-dash-head small {
      font-size: 10px;
      color: var(--text-muted);
      font-weight: 700;
    }

    .bk-dash-period {
      padding: 5px 10px;
      border-radius: 99px;
      background: var(--input-bg);
      border: 1px solid var(--card-border);
      font-size: 10px;
      color: var(--text-muted);
      font-weight: 700;
    }

    .bk-metrics-mini {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      margin-bottom: 12px;
    }

    .bk-metric-card {
      background: var(--input-bg);
      border: 1px solid var(--card-border);
      border-radius: 10px;
      padding: 10px;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      cursor: pointer;
    }

    .bk-metric-card:hover {
      transform: translateY(-3px);
      background: var(--card-bg);
      border-color: rgba(var(--primary-rgb), 0.38);
      box-shadow: 0 10px 24px rgba(var(--primary-rgb), 0.08);
    }

    .bk-metric-card small {
      display: block;
      font-size: 9px;
      font-weight: 800;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }

    .bk-metric-card strong {
      display: block;
      font-size: 16px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-top: 4px;
    }

    .bk-metric-card em {
      display: block;
      font-size: 9px;
      color: var(--success);
      font-style: normal;
      font-weight: 700;
      margin-top: 2px;
    }

    .bk-bars {
      display: flex;
      align-items: flex-end;
      gap: 6px;
      height: 80px;
      padding: 12px;
      border-radius: 10px;
      background: var(--input-bg);
      border: 1px solid var(--card-border);
    }

    .bk-bars span {
      flex: 1;
      border-radius: 4px 4px 2px 2px;
      background: linear-gradient(180deg, var(--accent), var(--primary));
      opacity: 0.8;
      transform-origin: bottom;
      animation: grow-bar 1.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
      transform: scaleY(0);
    }

    @keyframes grow-bar {
      to {
        transform: scaleY(1);
      }
    }

    .bk-health-row {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 10px;
    }

    .bk-ring {
      width: 54px;
      height: 54px;
      border: 8px solid var(--success);
      border-right-color: rgba(52, 211, 153, 0.15);
      border-radius: 50%;
      display: grid;
      place-items: center;
      font-size: 14px;
      font-weight: 800;
      color: var(--text-main);
      flex-shrink: 0;
    }

    .bk-health-text small {
      display: block;
      font-size: 9px;
      font-weight: 800;
      color: var(--text-muted);
      text-transform: uppercase;
    }

    .bk-health-text b {
      font-size: 12px;
      color: var(--text-main);
    }

    /* ── Enhanced Dashboard: Platform sidebar rows ── */
    .bk-aside-platforms {
      margin-top: 16px;
      padding-top: 14px;
      border-top: 1px solid var(--card-border);
    }

    .bk-aside-section-label {
      display: block;
      font-size: 9px;
      font-weight: 800;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-bottom: 8px;
    }

    .bk-platform-row {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 5px 8px;
      border-radius: 7px;
      margin-bottom: 3px;
      background: rgba(var(--primary-rgb), 0.03);
    }

    .bk-plat-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      flex-shrink: 0;
    }
    .bk-plat-dot.meta   { background: #1877f2; }
    .bk-plat-dot.tiktok { background: #000; border: 1px solid #69c9d0; }
    .bk-plat-dot.ga4    { background: #f9ab00; }

    .bk-plat-name {
      font-size: 10px;
      font-weight: 600;
      color: var(--text-main);
      flex: 1;
    }

    .bk-plat-status {
      font-size: 8px;
      font-weight: 800;
      padding: 2px 6px;
      border-radius: 99px;
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }
    .bk-plat-status.on {
      background: rgba(52, 211, 153, 0.18);
      color: #10b981;
    }

    /* ── 4 column metrics ── */
    .bk-metrics-4 {
      grid-template-columns: repeat(4, 1fr) !important;
      gap: 6px !important;
    }
    .bk-metrics-4 .bk-metric-card strong {
      font-size: 13px !important;
    }

    /* ── Chart wrapper ── */
    .bk-chart-wrap {
      margin-bottom: 10px;
    }

    .bk-chart-label-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 6px;
    }
    .bk-chart-label-row > span {
      font-size: 9px;
      font-weight: 700;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }
    .bk-chart-badge {
      font-size: 9px !important;
      font-weight: 700;
      color: var(--success) !important;
      background: rgba(52, 211, 153, 0.12);
      padding: 2px 7px;
      border-radius: 99px;
      text-transform: none !important;
      letter-spacing: 0 !important;
    }

    /* ── Dash bottom row: health + recent events ── */
    .bk-dash-bottom {
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 12px;
      align-items: start;
      margin-top: 10px;
    }

    .bk-health-row {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-top: 0;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }
    .bk-health-text {
      text-align: center;
    }

    /* ── Recent events list ── */
    .bk-recent-events {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .bk-event-row {
      display: flex;
      align-items: center;
      gap: 6px;
      background: var(--input-bg);
      border: 1px solid var(--card-border);
      border-radius: 7px;
      padding: 5px 8px;
    }

    .bk-event-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      flex-shrink: 0;
    }
    .bk-event-dot.purchase   { background: #6366f1; }
    .bk-event-dot.addtocart  { background: #f59e0b; }
    .bk-event-dot.pageview   { background: #10b981; }

    .bk-event-name {
      font-size: 9.5px;
      font-weight: 700;
      color: var(--text-main);
      flex: 1;
    }

    .bk-event-val {
      font-size: 9px;
      font-weight: 600;
      color: var(--text-muted);
    }

    .bk-event-plat {
      font-size: 8px;
      font-weight: 800;
      padding: 2px 6px;
      border-radius: 99px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .bk-event-plat.meta-tag   { background: rgba(24,119,242,0.14); color: #1877f2; }
    .bk-event-plat.tt-tag     { background: rgba(105,201,208,0.18); color: #069; }
    .bk-event-plat.ga4-tag    { background: rgba(249,171,0,0.18);   color: #c77b00; }


    .bk-section-wrap {
      width: min(100% - 48px, 1180px);
      margin: auto;
      padding: 45px 0;
    }

    .bk-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    .bk-kicker::before {
      content: '';
      width: 28px;
      height: 3px;
      border-radius: 3px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      flex-shrink: 0;
    }

    .bk-section-title {
      font-family: 'Space Grotesk', sans-serif;
      font-size: clamp(28px, 3.5vw, 42px);
      font-weight: 700;
      letter-spacing: -0.06em;
      line-height: 1.1;
      color: var(--text-main);
      max-width: 640px;
    }

    .bk-section-sub {
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.8;
      max-width: 520px;
      margin-top: 14px;
    }

    /* Section divider — a subtle gradient line between major sections */
    .bk-section-wrap + .bk-section-wrap::before {
      content: '';
      display: block;
      width: min(80%, 400px);
      height: 1px;
      margin: 0 auto 30px;
      background: linear-gradient(90deg, transparent, rgba(var(--primary-rgb), 0.18), var(--accent), rgba(var(--primary-rgb), 0.18), transparent);
    }

    /* Glass card */
    .bk-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 18px;
      backdrop-filter: blur(24px) saturate(160%);
      -webkit-backdrop-filter: blur(24px) saturate(160%);
      box-shadow: var(--card-shadow);
      transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s, box-shadow 0.3s;
    }

    .bk-card:hover {
      transform: translateY(-5px);
      border-color: rgba(var(--primary-rgb), 0.3);
      box-shadow: 0 16px 48px rgba(var(--primary-rgb), 0.15);
    }

    /* Features grid */
    .bk-feat-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 44px;
    }

    .bk-feat-card {
      padding: 32px 28px;
      position: relative;
      overflow: hidden;
      background: radial-gradient(circle at top right, rgba(var(--primary-rgb), 0.02), transparent 70%), var(--card-bg);
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s, box-shadow 0.3s, background 0.3s;
    }

    .bk-feat-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      border-radius: 18px 18px 0 0;
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .bk-feat-card:hover::before {
      opacity: 1;
    }

    .bk-feat-card:hover {
      transform: translateY(-6px);
      border-color: rgba(var(--primary-rgb), 0.45);
      box-shadow: 0 20px 48px rgba(var(--primary-rgb), 0.15);
      background: radial-gradient(circle at top right, rgba(var(--primary-rgb), 0.06), transparent 60%), var(--card-bg);
    }

    .bk-feat-icon {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.15), rgba(var(--primary-rgb), 0.06));
      border: 1px solid rgba(var(--primary-rgb), 0.2);
      display: grid;
      place-items: center;
      color: var(--primary);
      font-size: 18px;
      margin-bottom: 18px;
      position: relative;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .bk-feat-card:hover .bk-feat-icon {
      transform: scale(1.12);
      background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.25), rgba(var(--primary-rgb), 0.1));
      border-color: rgba(var(--primary-rgb), 0.45);
      box-shadow: 0 0 16px rgba(var(--primary-rgb), 0.2);
      color: var(--accent);
    }

    .bk-feat-icon::after {
      content: '';
      position: absolute;
      inset: -4px;
      border-radius: 18px;
      background: radial-gradient(circle, rgba(var(--primary-rgb), 0.1), transparent 70%);
      pointer-events: none;
    }

    .bk-feat-card h3 {
      font-family: Outfit, sans-serif;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .bk-feat-card p {
      color: var(--text-muted);
      font-size: 13px;
      line-height: 1.75;
    }

    .bk-feat-stat {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 22px;
    }

    .bk-feat-stat strong {
      font-size: 24px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .bk-sparkline {
      display: flex;
      align-items: flex-end;
      gap: 4px;
      height: 36px;
    }

    .bk-sparkline span {
      width: 6px;
      border-radius: 3px;
      background: linear-gradient(180deg, var(--accent), var(--primary));
      opacity: 0.7;
    }

    /* Budget / table section */
    .bk-two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }

    .bk-table-card {
      overflow: hidden;
      margin-top: 0;
    }

    .bk-table-head {
      padding: 16px 22px;
      border-bottom: 1px solid var(--card-border);
      background: rgba(var(--primary-rgb), 0.07);
      font-size: 13px;
      font-weight: 800;
      color: var(--text-main);
    }

    .bk-data-table {
      width: 100%;
      border-collapse: collapse;
    }

    .bk-data-table th {
      padding: 12px 22px;
      text-align: left;
      font-size: 10px;
      font-weight: 800;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.06em;
      border-bottom: 1px solid var(--card-border);
    }

    .bk-data-table td {
      padding: 14px 22px;
      font-size: 13px;
      border-bottom: 1px solid var(--card-border);
      color: var(--text-main);
    }

    .bk-data-table tr:last-child td {
      border-bottom: 0;
    }

    .bk-data-table tr:hover td {
      background: rgba(var(--primary-rgb), 0.04);
    }

    .bk-note-list {
      display: grid;
      gap: 14px;
    }

    .bk-note-card {
      display: flex;
      gap: 16px;
      align-items: flex-start;
      padding: 20px 20px 20px 24px;
      border-left: 3px solid transparent;
      border-image: linear-gradient(180deg, var(--primary), var(--accent)) 1;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .bk-note-card:hover {
      transform: translateX(4px);
      box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.08);
    }

    .bk-note-dot {
      width: 38px;
      height: 38px;
      flex-shrink: 0;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.15), rgba(var(--primary-rgb), 0.06));
      border: 1px solid rgba(var(--primary-rgb), 0.2);
      display: grid;
      place-items: center;
      color: var(--primary);
      font-weight: 800;
      font-size: 13px;
    }

    .bk-note-card h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 5px;
    }

    .bk-note-card p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* Integrations logo cloud */
    .bk-center {
      text-align: center;
    }

    .bk-logo-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      max-width: 680px;
      margin: 32px auto 0;
    }

    .bk-logo-chip {
      padding: 11px 20px;
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 99px;
      font-size: 12px;
      font-weight: 700;
      color: var(--text-muted);
      backdrop-filter: blur(12px);
      transition: all 0.2s;
    }

    .bk-logo-chip:hover {
      border-color: rgba(var(--primary-rgb), 0.4);
      color: var(--primary);
    }

    /* Tools grid */
    .bk-tools-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 44px;
    }

    /* Pricing */
    .bk-plan-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
      margin-top: 44px;
    }

    .bk-plan {
      padding: 24px;
    }

    .bk-plan h3 {
      font-family: Outfit, sans-serif;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

    .bk-plan-heading {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
    }

    .bk-plan-badge {
      padding: 4px 7px;
      border-radius: 99px;
      background: rgba(var(--primary-rgb), 0.14);
      color: var(--primary);
      font-size: 8px;
      font-weight: 800;
      letter-spacing: 0.05em;
      text-transform: uppercase;
    }

    .bk-plan-price {
      font-family: 'Space Grotesk', sans-serif;
      font-size: 38px;
      font-weight: 700;
      letter-spacing: -0.06em;
      color: var(--text-main);
      margin: 18px 0 4px;
    }

    .bk-plan-price-agency {
      font-size: 31px;
    }

    .bk-plan-price small {
      display: block;
      margin-bottom: 3px;
      color: var(--text-muted);
      font-family: Inter, sans-serif;
      font-size: 10px;
      font-weight: 800;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .bk-plan-price span {
      font-size: 12px;
      font-weight: 600;
      color: var(--text-muted);
      letter-spacing: 0;
    }

    .bk-plan-founder {
      margin-bottom: 5px;
      color: var(--primary);
      font-size: 10px;
      font-weight: 800;
      letter-spacing: 0.03em;
      text-transform: uppercase;
    }

    .bk-plan-founder s {
      margin-left: 3px;
      color: var(--text-subtle);
      font-weight: 700;
    }

    .bk-plan-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
      min-height: 58px;
    }

    .bk-plan-btn {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      padding: 11px;
      border-radius: 99px;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      margin-top: 22px;
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      color: var(--text-main);
      transition: all 0.25s;
    }

    .bk-plan-btn:hover {
      border-color: rgba(var(--primary-rgb), 0.4);
      background: rgba(var(--primary-rgb), 0.08);
    }

    .bk-plan.featured {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15), var(--card-shadow);
    }

    .bk-plan.featured .bk-plan-btn {
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.85), rgba(139, 92, 246, 0.95));
      border-color: rgba(255, 255, 255, 0.2);
      color: white;
    }

    .dark .bk-plan.featured .bk-plan-btn {
      background: linear-gradient(135deg, rgba(129, 140, 248, 0.9), rgba(167, 139, 250, 0.95));
      color: #0b1329;
    }

    .bk-plan.featured .bk-plan-btn:hover {
      box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.35);
    }

    .bk-plan ul {
      list-style: none;
      display: grid;
      gap: 10px;
      margin-top: 22px;
    }

    .bk-plan li {
      display: flex;
      gap: 10px;
      font-size: 12px;
      color: var(--text-muted);
    }

    .bk-plan li::before {
      content: "✓";
      width: 16px;
      height: 16px;
      flex-shrink: 0;
      border-radius: 50%;
      background: rgba(var(--primary-rgb), 0.15);
      color: var(--primary);
      font-size: 9px;
      font-weight: 900;
      display: grid;
      place-items: center;
      margin-top: 2px;
    }

    .bk-plan-limit-note {
      max-width: 820px;
      margin: 18px auto 0;
      color: var(--text-muted);
      font-size: 11px;
      line-height: 1.7;
    }

    /* Comparison table */
    .bk-comparison-table {
      overflow: hidden;
      margin-top: 44px;
    }

    .bk-comp-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 600px;
    }

    .bk-comp-table th {
      padding: 18px 22px;
      text-align: left;
      background: rgba(var(--primary-rgb), 0.08);
      color: var(--text-main);
      font-size: 13px;
      font-weight: 800;
      border-bottom: 1px solid var(--card-border);
    }

    .bk-comp-table td {
      padding: 16px 22px;
      font-size: 13px;
      color: var(--text-muted);
      border-bottom: 1px solid var(--card-border);
      line-height: 1.6;
    }

    .bk-comp-table tr:last-child td {
      border-bottom: 0;
    }

    .bk-comp-table td strong {
      color: var(--text-main);
    }

    /* Highlight the Buykori AdSync column */
    .bk-comp-table th.highlight-col {
      background: rgba(var(--primary-rgb), 0.12);
      position: relative;
    }

    .bk-comp-table td.highlight-col {
      background: rgba(var(--primary-rgb), 0.03);
      font-weight: 600;
      color: var(--text-main);
    }

    /* Row Hover */
    .bk-comp-table tr:hover td {
      background: rgba(var(--primary-rgb), 0.02);
    }
    
    .bk-comp-table tr:hover td.highlight-col {
      background: rgba(var(--primary-rgb), 0.06);
    }

    /* Recommended Badge */
    .badge-rec {
      display: inline-block;
      font-size: 9px;
      font-weight: 800;
      background: var(--primary);
      color: white;
      padding: 2px 6px;
      border-radius: 4px;
      margin-left: 8px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      vertical-align: middle;
    }
    
    .dark .badge-rec {
      background: var(--accent);
      color: #0b1329;
    }

    /* Area Titles & Icons */
    .area-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      color: var(--text-main);
    }

    .area-icon {
      color: var(--primary);
      opacity: 0.8;
      flex-shrink: 0;
    }

    /* Check & Cross Styles */
    .icon-text {
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }

    .icon-check {
      color: var(--success);
      font-weight: bold;
      font-size: 11px;
      flex-shrink: 0;
      display: inline-flex;
      justify-content: center;
      align-items: center;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: rgba(52, 211, 153, 0.15); /* light green background circle */
    }

    .icon-cross {
      color: var(--text-subtle);
      font-weight: bold;
      font-size: 10px;
      flex-shrink: 0;
      display: inline-flex;
      justify-content: center;
      align-items: center;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: rgba(148, 163, 184, 0.15); /* light gray background circle */
    }

    /* Testimonials */
    .bk-testi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 44px;
    }

    .bk-testi {
      padding: 28px;
    }

    .bk-stars {
      color: #f59e0b;
      font-size: 16px;
      letter-spacing: 2px;
      margin-bottom: 14px;
    }

    .bk-testi p {
      color: var(--text-muted);
      font-size: 13px;
      line-height: 1.8;
    }

    .bk-testi strong {
      display: block;
      color: var(--text-main);
      font-size: 13px;
      font-weight: 700;
      margin-top: 18px;
    }

    .bk-testi small {
      font-size: 11px;
      color: var(--text-subtle);
    }

    /* FAQ */
    .bk-faq-grid {
      display: grid;
      grid-template-columns: 1fr 1.5fr;
      gap: 56px;
    }

    .bk-faq-list {
      display: grid;
      gap: 10px;
    }

    .bk-faq-list details {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 14px;
      backdrop-filter: blur(16px);
      overflow: hidden;
      transition: border-color 0.2s;
    }

    .bk-faq-list details:hover {
      border-color: rgba(var(--primary-rgb), 0.3);
    }

    .bk-faq-list details[open] {
      border-color: rgba(var(--primary-rgb), 0.4);
    }

    .bk-faq-list summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 18px 20px;
      cursor: pointer;
      list-style: none;
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .bk-faq-list summary::-webkit-details-marker {
      display: none;
    }

    .bk-faq-list summary::after {
      content: "+";
      color: var(--primary);
      font-size: 20px;
      flex-shrink: 0;
    }

    .bk-faq-list details[open] summary::after {
      content: "−";
    }

    .bk-faq-list p {
      margin: 0;
      padding: 0 20px 18px;
      color: var(--text-muted);
      font-size: 13px;
      line-height: 1.75;
    }

    /* CTA */
    .bk-cta-section {
      width: min(100% - 48px, 1180px);
      margin: 0 auto 80px;
    }

    .bk-cta-card {
      padding: 72px 40px;
      text-align: center;
      background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.15), rgba(139, 92, 246, 0.12));
      border: 1px solid rgba(var(--primary-rgb), 0.25);
      border-radius: 24px;
      backdrop-filter: blur(24px);
    }

    .bk-cta-card h2 {
      font-family: 'Space Grotesk', sans-serif;
      font-size: clamp(28px, 3.5vw, 42px);
      font-weight: 700;
      letter-spacing: -0.06em;
      color: var(--text-main);
      max-width: 560px;
      margin: auto;
    }

    .bk-cta-card p {
      max-width: 480px;
      margin: 18px auto 0;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .bk-cta-card .bk-btn-primary {
      margin-top: 30px;
    }

    /* Footer */
    .bk-footer {
      border-top: 1px solid var(--card-border);
      padding: 36px clamp(20px, 5vw, 60px);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: var(--text-subtle);
      font-size: 12px;
    }

    .bk-footer-links {
      display: flex;
      gap: 20px;
      font-weight: 600;
    }

    .bk-footer-links a {
      transition: color 0.2s;
    }

    .bk-footer-links a:hover {
      color: var(--primary);
    }

    /* Hamburger Menu Toggle Button Style */
    .bk-menu-toggle {
      display: none;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      width: 44px;
      height: 44px;
      background: transparent;
      border: none;
      cursor: pointer;
      z-index: 101;
      padding: 0;
    }

    .bk-menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background-color: var(--text-main);
      border-radius: 2px;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .bk-menu-toggle.active span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .bk-menu-toggle.active span:nth-child(2) {
      opacity: 0;
    }

    .bk-menu-toggle.active span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* ───── RESPONSIVE & MOBILE-FIRST OPTIMIZATIONS ───── */

    /* Segment headings layout */
    .bk-section-header {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
    }

    .bk-mobile-actions {
      display: none;
    }

    @media (max-width: 1000px) {

      .bk-hero,
      .bk-two-col,
      .bk-faq-grid {
        grid-template-columns: 1fr;
      }

      .bk-feat-grid,
      .bk-tools-grid,
      .bk-testi-grid {
        grid-template-columns: 1fr 1fr;
      }

      .bk-dashboard {
        transform: none;
        animation: none;
      }

      /* Balance 3-column elements in 2-column layout */
      .bk-testi-grid .bk-card:last-child {
        grid-column: span 2;
      }
    }

    @media (max-width: 860px) {

      /* Mobile Menu Toggle visibility */
      .bk-menu-toggle {
        display: flex;
      }

      /* Hide desktop actions in header */
      .bk-nav-right .bk-auth-link,
      .bk-nav-right .bk-btn-primary {
        display: none !important;
      }

      /* Drawer mobile navigation */
      nav.bk-links {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        height: calc(100vh - 68px);
        background-color: var(--bg-color);
        background-image: var(--bg-gradient);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 40px 24px;
        gap: 8px;
        z-index: 999;
        transform: translateY(-150%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, visibility 0.3s;
        backdrop-filter: blur(12px) saturate(140%);
        -webkit-backdrop-filter: blur(12px) saturate(140%);
        border-bottom: 1px solid var(--nav-border);
        overflow-y: auto;
      }

      nav.bk-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
      }

      nav.bk-links a {
        font-size: 18px;
        width: 100%;
        text-align: center;
        padding: 14px 0;
        border-bottom: 1px solid rgba(var(--primary-rgb), 0.06);
        color: var(--text-main);
        transition: all 0.2s;
      }

      nav.bk-links a:last-of-type {
        border-bottom: none;
      }

      .bk-mobile-actions {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 16px;
        width: 100%;
        margin-top: 24px;
        padding-top: 24px;
        border-top: 1px solid var(--nav-border);
      }

      .bk-mobile-actions .bk-auth-link {
        color: var(--text-muted);
        font-size: 16px;
        font-weight: 700;
        padding: 12px;
        width: 100%;
        text-align: center;
        background: var(--input-bg);
        border: 1px solid var(--input-border);
        border-radius: 99px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
      }

      .bk-mobile-actions .bk-btn-primary {
        width: 100%;
        justify-content: center;
        min-height: 44px;
        display: flex;
      }

      /* Responsive plan cards horizontal slider */
      .bk-plan-grid {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        gap: 20px;
        padding: 24px 20px;
        margin: 24px -20px 0;
        -webkit-overflow-scrolling: touch;
        scroll-padding: 20px;
      }

      .bk-plan-grid::-webkit-scrollbar {
        height: 4px;
      }

      .bk-plan-grid .bk-plan {
        flex: 0 0 280px;
        scroll-snap-align: center;
      }
    }

    @media (max-width: 768px) {
      .bk-section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }

      .bk-footer {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 20px;
        padding: 40px 20px;
      }

      .bk-footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
      }
    }

    @media (max-width: 680px) {
      .bk-hero {
        padding: 40px 0 50px;
      }

      .bk-feat-grid,
      .bk-tools-grid,
      .bk-testi-grid {
        grid-template-columns: 1fr;
      }

      .bk-nav {
        padding: 0 20px;
      }

      .bk-cta-card {
        padding: 44px 24px;
      }

      .bk-section-wrap {
        padding: 35px 0;
      }

      .bk-hero h1 {
        line-height: 1.15;
      }

      .bk-section-title {
        line-height: 1.25;
      }

      /* Sticky Comparison Table column header/cells */
      .bk-comp-table th:first-child,
      .bk-comp-table td:first-child {
        position: sticky;
        left: 0;
        background: var(--card-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        z-index: 2;
        border-right: 1px solid var(--card-border);
      }

      .bk-comp-table th:first-child::after,
      .bk-comp-table td:first-child::after {
        content: '';
        position: absolute;
        top: 0;
        right: -5px;
        bottom: 0;
        width: 5px;
        background: linear-gradient(to right, rgba(0, 0, 0, 0.06), transparent);
        pointer-events: none;
      }

      .bk-comp-table {
        min-width: 500px;
      }

      .bk-comp-table td,
      .bk-comp-table th {
        padding: 12px 14px;
        font-size: 12px;
      }

      .bk-comp-table tr:hover td:first-child {
        background: rgba(var(--primary-rgb), 0.08);
      }
    }

    @media (max-width: 560px) {
      .bk-window-body {
        grid-template-columns: 1fr;
      }

      .bk-window-aside {
        display: none;
      }
    }

    @media (max-width: 480px) {
      .theme-btn-text {
        display: none;
      }

      .theme-btn {
        padding: 0;
        width: 44px;
        height: 44px;
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      .auth-modal-body {
        padding: 28px 20px 24px;
      }

      .bk-logo {
        font-size: 15px;
      }

      .bk-logo-icon {
        width: 28px;
        height: 28px;
        font-size: 13px;
      }
    }

    /* Low-end mobile device performance safeguards */
    @media (max-width: 768px) {

      .bk-nav,
      .bk-card,
      .bk-faq-list details,
      .bk-cta-card,
      .auth-modal,
      .bk-comp-table th:first-child,
      .bk-comp-table td:first-child {
        backdrop-filter: blur(8px) saturate(130%);
        -webkit-backdrop-filter: blur(8px) saturate(130%);
      }
    }

    /* ───── AUTH MODAL ───── */
    .auth-overlay {
      position: fixed;
      inset: 0;
      background: rgba(4, 7, 20, 0.6);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      opacity: 0;
      visibility: hidden;
      transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
      z-index: 9999;
      display: grid;
      place-items: center;
      padding: 24px;
      overflow-y: auto;
    }

    .auth-overlay.active {
      opacity: 1;
      visibility: visible;
    }

    .auth-modal {
      width: 100%;
      max-width: 460px;
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 24px;
      box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
      backdrop-filter: blur(32px) saturate(160%);
      -webkit-backdrop-filter: blur(32px) saturate(160%);
      transform: scale(0.92) translateY(18px);
      opacity: 0;
      transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
      overflow: hidden;
      color: var(--text-main);
    }

    .auth-modal.active {
      transform: scale(1) translateY(0);
      opacity: 1;
    }

    .auth-modal-body {
      padding: 36px 32px 32px;
    }

    .auth-modal-logo {
      display: flex;
      align-items: center;
      gap: 9px;
      font-family: Outfit, sans-serif;
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 20px;
    }

    .auth-modal-logo span {
      width: 28px;
      height: 28px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      display: grid;
      place-items: center;
      color: white;
      font-size: 13px;
      font-weight: 900;
      box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
    }

    .auth-modal-close {
      position: absolute;
      top: 18px;
      right: 18px;
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      width: 34px;
      height: 34px;
      border-radius: 50%;
      color: var(--text-muted);
      display: grid;
      place-items: center;
      font-size: 19px;
      cursor: pointer;
      transition: all 0.2s;
    }

    .auth-modal-close:hover {
      color: var(--text-main);
      transform: rotate(90deg);
    }

    .auth-title {
      font-family: 'Space Grotesk', sans-serif;
      font-size: 26px;
      font-weight: 700;
      letter-spacing: -0.03em;
      color: var(--text-main);
      margin: 0 0 5px;
    }

    .auth-sub {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .auth-tabs {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4px;
      padding: 4px;
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      border-radius: 12px;
      margin-bottom: 24px;
    }

    .auth-tab {
      padding: 10px;
      border: 0;
      background: transparent;
      color: var(--text-muted);
      font-size: 13px;
      font-weight: 700;
      border-radius: 9px;
      cursor: pointer;
      transition: all 0.2s;
    }

    .auth-tab.active {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      color: var(--text-main);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }

    .auth-panel {
      display: none;
    }

    .auth-panel.active {
      display: block;
    }

    .auth-field {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 16px;
    }

    .auth-label {
      font-size: 10px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--text-muted);
    }

    .auth-input {
      width: 100%;
      height: 46px;
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      border-radius: 10px;
      color: var(--text-main);
      padding: 0 14px;
      font-size: 14px;
      outline: none;
      transition: all 0.2s;
    }

    .auth-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
    }

    .auth-input::placeholder {
      color: var(--text-subtle);
    }

    .auth-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 22px;
    }

    .auth-row label {
      display: flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
    }

    .auth-row input[type="checkbox"] {
      accent-color: var(--primary);
    }

    .auth-submit {
      width: 100%;
      height: 48px;
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.85), rgba(139, 92, 246, 0.95));
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 10px;
      color: white;
      font-size: 14px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.25);
      transition: all 0.2s;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .dark .auth-submit {
      background: linear-gradient(135deg, rgba(129, 140, 248, 0.9), rgba(167, 139, 250, 0.95));
      color: #0b1329;
    }

    .auth-submit:hover {
      transform: translateY(-1.5px);
      box-shadow: 0 12px 28px rgba(var(--primary-rgb), 0.38);
    }

    .auth-switch {
      text-align: center;
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 16px;
    }

    .auth-link {
      color: var(--primary);
      font-weight: 700;
      background: none;
      border: 0;
      cursor: pointer;
      padding: 0;
    }

    .auth-link:hover {
      text-decoration: underline;
    }

    .auth-error {
      border: 1px solid rgba(239, 68, 68, 0.3);
      background: rgba(239, 68, 68, 0.08);
      color: #b91c1c;
      /* High contrast red for WCAG AA in light mode */
      padding: 12px 14px;
      border-radius: 10px;
      font-size: 13px;
      margin-bottom: 18px;
      display: flex;
      align-items: flex-start;
      gap: 8px;
      line-height: 1.4;
    }

    .dark .auth-error {
      color: #f87171;
      /* High contrast red for dark mode */
    }

    .spinner {
      width: 16px;
      height: 16px;
      border: 2px solid rgba(255, 255, 255, 0.3);
      border-top-color: currentColor;
      border-radius: 50%;
      animation: spin 0.8s linear infinite;
    }

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

    .auth-success {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 40px 20px;
      text-align: center;
    }

    .auth-success-icon {
      width: 64px;
      height: 64px;
      background: rgba(52, 211, 153, 0.15);
      color: #34d399;
      border-radius: 50%;
      display: grid;
      place-items: center;
      font-size: 28px;
      margin-bottom: 18px;
      animation: scaleIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    }

    @keyframes scaleIn {
      from {
        transform: scale(0.5);
        opacity: 0;
      }

      to {
        transform: scale(1);
        opacity: 1;
      }
    }

    @keyframes slideUp {
      from {
        transform: translateY(14px);
        opacity: 0;
      }

      to {
        transform: translateY(0);
        opacity: 1;
      }
    }

    /* ───── COURIER AUTOMATION MOCKUP ───── */
    .bk-courier-mock-wrap {
      position: relative;
    }

    .bk-courier-card {
      width: 100%;
      max-width: 540px;
      margin: 0 auto;
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 22px;
      box-shadow: var(--card-shadow);
      backdrop-filter: blur(24px) saturate(160%);
      -webkit-backdrop-filter: blur(24px) saturate(160%);
      overflow: hidden;
      transform: perspective(800px) rotateY(3deg) rotateX(1deg);
      transition: transform 0.4s ease;
      animation: float-courier 4.5s ease-in-out infinite alternate;
    }

    @keyframes float-courier {
      from {
        transform: perspective(800px) rotateY(3deg) rotateX(1deg) translateY(0);
      }
      to {
        transform: perspective(800px) rotateY(3deg) rotateX(1deg) translateY(-8px);
      }
    }

    .bk-courier-card:hover {
      transform: perspective(800px) rotateY(0deg) rotateX(0deg) translateY(-4px);
    }

    .bk-courier-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 20px;
      border-bottom: 1px solid var(--card-border);
      background: rgba(var(--primary-rgb), 0.05);
    }

    .bk-badge {
      display: inline-flex;
      align-items: center;
      padding: 4px 10px;
      border-radius: 99px;
      font-size: 10px;
      font-weight: 800;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      margin-right: 6px;
    }

    .bk-badge.steadfast {
      background: rgba(239, 68, 68, 0.15);
      color: #ef4444;
      border: 1px solid rgba(239, 68, 68, 0.25);
    }

    .bk-badge.pathao {
      background: rgba(245, 158, 11, 0.15);
      color: #f59e0b;
      border: 1px solid rgba(245, 158, 11, 0.25);
    }

    .bk-courier-action-badge {
      font-size: 10px;
      font-weight: 800;
      color: var(--success);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .bk-courier-action-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--success);
      display: inline-block;
      box-shadow: 0 0 8px var(--success);
      animation: pulse-dot-courier 1.5s infinite;
    }

    @keyframes pulse-dot-courier {
      0%, 100% {
        opacity: 1;
        transform: scale(1);
      }
      50% {
        opacity: 0.5;
        transform: scale(0.7);
      }
    }

    .bk-courier-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .bk-courier-order-item {
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      border-radius: 14px;
      padding: 16px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .bk-order-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .bk-order-id {
      font-family: Outfit, sans-serif;
      font-size: 14px;
      font-weight: 800;
      color: var(--text-main);
    }

    .bk-order-status.processing {
      background: rgba(var(--primary-rgb), 0.12);
      color: var(--primary);
      border: 1px solid rgba(var(--primary-rgb), 0.2);
      padding: 3px 8px;
      border-radius: 6px;
      font-size: 9px;
      font-weight: 800;
      text-transform: uppercase;
    }

    .bk-customer-detail {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .bk-customer-detail strong {
      color: var(--text-main);
    }

    .bk-order-pricing {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      border-top: 1px dashed var(--input-border);
      padding-top: 10px;
    }

    .bk-order-pricing strong {
      color: var(--text-main);
    }

    .bk-courier-actions {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 4px;
    }

    .bk-courier-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 10px 14px;
      border-radius: 10px;
      font-size: 11px;
      font-weight: 800;
      cursor: pointer;
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: white;
      transition: all 0.25s ease;
    }

    .bk-courier-btn.steadfast-btn {
      background: linear-gradient(135deg, #ef4444, #b91c1c);
      box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
    }

    .bk-courier-btn.steadfast-btn:hover:not(:disabled) {
      transform: translateY(-1.5px);
      box-shadow: 0 6px 16px rgba(239, 68, 68, 0.35);
    }

    .bk-courier-btn.pathao-btn {
      background: linear-gradient(135deg, #f59e0b, #d97706);
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
    }

    .bk-courier-btn.pathao-btn:hover:not(:disabled) {
      transform: translateY(-1.5px);
      box-shadow: 0 6px 16px rgba(245, 158, 11, 0.35);
    }

    .bk-courier-btn:disabled {
      opacity: 0.6;
      cursor: not-allowed;
      transform: none !important;
      box-shadow: none !important;
    }

    .bk-courier-tracking-card {
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      border-radius: 14px;
      padding: 16px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .bk-tracking-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 11px;
      font-weight: 800;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .bk-provider-badge {
      font-size: 9px;
      font-weight: 800;
      padding: 3px 8px;
      border-radius: 6px;
      text-transform: uppercase;
      background: var(--card-border);
      color: var(--text-muted);
    }

    .bk-provider-badge.steadfast {
      background: rgba(239, 68, 68, 0.15);
      color: #ef4444;
      border: 1px solid rgba(239, 68, 68, 0.25);
    }

    .bk-provider-badge.pathao {
      background: rgba(245, 158, 11, 0.15);
      color: #f59e0b;
      border: 1px solid rgba(245, 158, 11, 0.25);
    }

    .bk-tracking-body {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .bk-tracking-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      background: rgba(var(--primary-rgb), 0.04);
      border: 1px solid var(--input-border);
      border-radius: 10px;
      padding: 10px 12px;
    }

    .bk-tracking-col {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .bk-tracking-col small {
      font-size: 8px;
      font-weight: 800;
      color: var(--text-subtle);
      text-transform: uppercase;
    }

    .bk-tracking-col strong {
      font-size: 13px;
      font-weight: 800;
      color: var(--text-main);
    }

    .bk-status-text {
      color: var(--text-main);
      font-weight: 800;
    }

    .bk-status-text.warning {
      color: #d97706;
    }

    .bk-status-text.success {
      color: var(--success);
    }

    .bk-status-text.primary {
      color: var(--primary);
    }

    /* Horizontal mini timeline */
    .bk-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      position: relative;
      margin-top: 6px;
      padding-top: 10px;
    }

    .bk-timeline::before {
      content: "";
      position: absolute;
      top: 14px;
      left: 12.5%;
      right: 12.5%;
      height: 2px;
      background: var(--input-border);
      z-index: 1;
    }

    .bk-timeline-step {
      display: flex;
      flex-direction: column;
      align-items: center;
      position: relative;
      z-index: 2;
    }

    .bk-timeline-step i {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--bg-color);
      border: 2px solid var(--input-border);
      transition: all 0.3s ease;
      margin-bottom: 6px;
    }

    .bk-timeline-step small {
      font-size: 8px;
      font-weight: 800;
      color: var(--text-subtle);
      text-transform: uppercase;
      letter-spacing: 0.02em;
      transition: color 0.3s ease;
    }

    /* Active Step */
    .bk-timeline-step.active i {
      border-color: var(--primary);
      background: var(--primary);
      box-shadow: 0 0 10px var(--primary);
      animation: pulse-step 1.5s infinite;
    }

    .bk-timeline-step.active small {
      color: var(--primary);
    }

    /* Completed Step */
    .bk-timeline-step.completed i {
      border-color: var(--success);
      background: var(--success);
    }

    .bk-timeline-step.completed small {
      color: var(--success);
    }

    @keyframes pulse-step {
      0%, 100% {
        box-shadow: 0 0 0 0px rgba(var(--primary-rgb), 0.4);
      }
      50% {
        box-shadow: 0 0 0 6px rgba(var(--primary-rgb), 0.15);
      }
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .bk-courier-card {
        transform: none !important;
        animation: none !important;
      }
    }

    /* ───── ZERO CONFIG WOOCOMMERCE STEPS ───── */
    .bk-steps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 24px;
    }

    .bk-step-card {
      padding: 32px 24px;
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .bk-step-card::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      border-radius: 18px 18px 0 0;
      opacity: 0.5;
    }

    .bk-step-num {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: white;
      font-size: 20px;
      font-weight: 900;
      display: grid;
      place-items: center;
      box-shadow: 0 6px 18px rgba(var(--primary-rgb), 0.3);
    }

    .bk-step-card h3 {
      font-family: Outfit, sans-serif;
      font-size: 17px;
      font-weight: 800;
      color: var(--text-main);
    }

    .bk-step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* ───── CUSTOM DOMAINS MANAGER ───── */
    .bk-domain-manager-wrap {
      position: relative;
      width: 100%;
    }

    .bk-domain-manager-card {
      padding: 30px 24px;
      width: 100%;
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 16px;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      gap: 20px;
      backdrop-filter: blur(10px);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .bk-domain-manager-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    }

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

    .bk-domain-title-group {
      display: flex;
      align-items: center;
      gap: 12px;
      text-align: left;
    }

    .bk-domain-icon {
      color: var(--primary);
      animation: spin-slow 12s linear infinite;
    }

    @keyframes spin-slow {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }

    .bk-domain-title-group h3 {
      font-family: Outfit, sans-serif;
      font-size: 15px;
      font-weight: 800;
      color: var(--text-main);
      margin: 0;
    }

    .bk-domain-title-group p {
      font-size: 11px;
      color: var(--text-subtle);
      margin: 2px 0 0;
    }

    .bk-status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      border-radius: 99px;
      font-size: 10px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .bk-status-badge.active {
      background: rgba(52, 211, 153, 0.1);
      color: var(--success);
      border: 1px solid rgba(52, 211, 153, 0.2);
    }

    .bk-status-badge .pulse-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: var(--success);
      box-shadow: 0 0 0 rgba(52, 211, 153, 0.4);
      animation: pulse-dot 1.5s infinite;
    }

    @keyframes pulse-dot {
      0% {
        box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7);
      }
      70% {
        box-shadow: 0 0 0 6px rgba(52, 211, 153, 0);
      }
      100% {
        box-shadow: 0 0 0 0 rgba(52, 211, 153, 0);
      }
    }

    .bk-dns-setup-box {
      background: rgba(var(--primary-rgb), 0.03);
      border: 1px dashed var(--input-border);
      border-radius: 12px;
      padding: 14px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .bk-dns-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .bk-dns-col {
      display: flex;
      flex-direction: column;
      gap: 2px;
      text-align: left;
    }

    .bk-dns-label {
      font-size: 8px;
      font-weight: 800;
      color: var(--text-subtle);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .bk-dns-value {
      font-size: 12px;
      font-weight: 700;
      color: var(--text-main);
    }

    .bk-dns-value.highlight {
      background: var(--primary);
      color: white;
      padding: 1px 6px;
      border-radius: 4px;
      font-size: 10px;
    }

    .bk-domain-stats {
      text-align: left;
    }

    .bk-domain-stats h4 {
      font-family: Outfit, sans-serif;
      font-size: 12px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .bk-stat-bar-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .bk-stat-bar-label {
      display: flex;
      justify-content: space-between;
      font-size: 11px;
      font-weight: 700;
      color: var(--text-main);
    }

    .bk-stat-bar-bg {
      height: 8px;
      background: var(--input-border);
      border-radius: 99px;
      overflow: hidden;
    }

    .bk-stat-bar-fill {
      height: 100%;
      border-radius: 99px;
      transition: width 1s ease-in-out;
    }

    .bk-stat-bar-fill.blocked {
      background: linear-gradient(90deg, #f87171, #ef4444);
    }

    .bk-stat-bar-fill.active {
      background: linear-gradient(90deg, #34d399, #10b981);
    }

    .bk-live-feed {
      background: rgba(15, 23, 42, 0.04);
      border: 1px solid var(--input-border);
      border-radius: 12px;
      padding: 14px;
      text-align: left;
    }

    .dark .bk-live-feed {
      background: rgba(0, 0, 0, 0.2);
    }

    .bk-feed-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 10px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--text-subtle);
      border-bottom: 1px solid var(--input-border);
      padding-bottom: 8px;
      margin-bottom: 8px;
    }

    .bk-feed-badge {
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .bk-feed-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 6px 0;
      font-size: 11px;
      border-bottom: 1px solid rgba(var(--primary-rgb), 0.04);
    }

    .bk-feed-row:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .bk-feed-time {
      color: var(--text-subtle);
      width: 60px;
    }

    .bk-feed-event {
      font-weight: 700;
      color: var(--text-main);
      font-family: monospace;
      flex-grow: 1;
      text-align: left;
      padding-left: 10px;
    }

    .bk-feed-status {
      font-size: 9px;
      font-weight: 800;
      padding: 2px 6px;
      border-radius: 4px;
      text-transform: uppercase;
    }

    .bk-feed-status.success {
      background: rgba(52, 211, 153, 0.12);
      color: var(--success);
    }

    /* ───── INTERACTIVE EMQ CALCULATOR ───── */
    .bk-emq-label {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 12px;
      padding: 14px 18px;
      display: flex;
      align-items: center;
      gap: 12px;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .bk-emq-label:hover {
      border-color: rgba(var(--primary-rgb), 0.3);
      background: rgba(var(--primary-rgb), 0.04);
      transform: translateX(4px);
    }

    .bk-emq-label:has(input:checked) {
      border-color: rgba(var(--primary-rgb), 0.5);
      background: rgba(var(--primary-rgb), 0.06);
      box-shadow: 0 4px 20px rgba(var(--primary-rgb), 0.08);
    }

    .bk-emq-label input[type="checkbox"] {
      width: 18px;
      height: 18px;
      accent-color: var(--primary);
      cursor: pointer;
    }

    .bk-emq-label span {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }

    .bk-emq-label span small {
      font-size: 10px;
      font-weight: 600;
    }

    .bk-emq-widget-wrap {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      align-self: center;
      height: 100%;
      width: 100%;
    }

    .bk-emq-widget-card {
      padding: 36px 32px;
      width: 100%;
      max-width: 100%;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 24px;
    }

    .bk-emq-widget-card h3 {
      font-family: Outfit, sans-serif;
      font-size: 15px;
      font-weight: 800;
      color: var(--text-main);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .bk-emq-circle-wrap {
      position: relative;
      width: 190px;
      height: 190px;
    }

    .bk-emq-svg {
      width: 100%;
      height: 100%;
      transform: rotate(-90deg);
    }

    .bk-circle-bg {
      fill: none;
      stroke: var(--input-border);
      stroke-width: 8;
    }

    .bk-circle-bar {
      fill: none;
      stroke: var(--primary);
      stroke-width: 8;
      stroke-linecap: round;
      stroke-dasharray: 314;
      stroke-dashoffset: 314;
      transition: stroke-dashoffset 0.6s cubic-bezier(0.16, 1, 0.3, 1), stroke 0.6s;
    }

    .bk-emq-circle-text {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }

    .bk-emq-circle-text span {
      font-family: 'Space Grotesk', sans-serif;
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -1px;
    }

    .bk-emq-circle-text small {
      font-size: 10px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .bk-emq-circle-text small.danger {
      color: #ef4444;
    }

    .bk-emq-circle-text small.warning {
      color: #f59e0b;
    }

    .bk-emq-circle-text small.success {
      color: var(--success);
    }

    .bk-emq-badge-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      width: 100%;
      border-top: 1px dashed var(--input-border);
      border-bottom: 1px dashed var(--input-border);
      padding: 12px 0;
    }

    .bk-emq-stat-badge {
      display: flex;
      flex-direction: column;
      gap: 2px;
      text-align: left;
    }

    .bk-emq-stat-badge small {
      font-size: 8px;
      font-weight: 800;
      color: var(--text-subtle);
      text-transform: uppercase;
      letter-spacing: 0.02em;
    }

    .bk-emq-stat-badge strong {
      font-size: 11px;
      font-weight: 800;
    }

    .bk-emq-advice {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
      text-align: left;
    }

    .bk-emq-advice strong {
      color: var(--text-main);
    }

    /* Responsive steps grid */
    @media (max-width: 900px) {
      .bk-steps-grid {
        grid-template-columns: 1fr;
      }
      .bk-domain-manager-card {
        padding: 20px 16px;
        gap: 16px;
      }
    }

    /* ───── SCROLL REVEAL ANIMATION ───── */
    .bk-reveal {
      opacity: 0;
      transform: translateY(32px);
      transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .bk-reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* Stagger children inside feature grid */
    .bk-feat-grid .bk-card,
    .bk-steps-grid .bk-card,
    .bk-testi-grid .bk-card,
    .bk-plan-grid .bk-card {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .bk-feat-grid.stagger-visible .bk-card,
    .bk-steps-grid.stagger-visible .bk-card,
    .bk-testi-grid.stagger-visible .bk-card,
    .bk-plan-grid.stagger-visible .bk-card {
      opacity: 1;
      transform: translateY(0);
    }

    .bk-feat-grid .bk-card:nth-child(2), .bk-steps-grid .bk-card:nth-child(2), .bk-testi-grid .bk-card:nth-child(2), .bk-plan-grid .bk-card:nth-child(2) { transition-delay: 0.08s; }
    .bk-feat-grid .bk-card:nth-child(3), .bk-steps-grid .bk-card:nth-child(3), .bk-testi-grid .bk-card:nth-child(3), .bk-plan-grid .bk-card:nth-child(3) { transition-delay: 0.16s; }
    .bk-feat-grid .bk-card:nth-child(4), .bk-plan-grid .bk-card:nth-child(4) { transition-delay: 0.24s; }
    .bk-feat-grid .bk-card:nth-child(5) { transition-delay: 0.32s; }
    .bk-feat-grid .bk-card:nth-child(6) { transition-delay: 0.4s; }
    .bk-feat-grid .bk-card:nth-child(7) { transition-delay: 0.48s; }

    /* Section header section-header flex */
    .bk-section-header {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 0;
    }

    /* ───── PERFORMANCE TRUST BAR ───── */
    .bk-perf-stats-section {
      border-top: 1px solid var(--card-border);
      border-bottom: 1px solid var(--card-border);
      background: rgba(var(--primary-rgb), 0.02);
      max-width: 100% !important;
      width: 100% !important;
      margin: 45px 0 !important;
      padding: 40px 0;
    }

    .bk-perf-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      max-width: 1180px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .bk-perf-stat-item {
      display: flex;
      align-items: center;
      gap: 16px;
      justify-content: flex-start;
      transition: transform 0.25s ease;
    }

    .bk-perf-stat-item:hover {
      transform: translateY(-2px);
    }

    .bk-stat-circle {
      position: relative;
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .bk-stat-circle .circular-chart {
      width: 100%;
      height: 100%;
      transform: rotate(-90deg);
    }

    .bk-stat-circle .circle-bg {
      fill: none;
      stroke: var(--input-border);
      stroke-width: 3.5;
    }

    .bk-stat-circle .circle {
      fill: none;
      stroke-width: 3.5;
      stroke-linecap: round;
    }

    /* Colors mapping matching the screenshot */
    .bk-stat-circle.orange .circle {
      stroke: #f97316; /* Orange */
    }
    .bk-stat-circle.green .circle {
      stroke: #10b981; /* Green */
    }
    .bk-stat-circle.blue .circle {
      stroke: #3b82f6; /* Blue */
    }
    .bk-stat-circle.purple .circle {
      stroke: #8b5cf6; /* Purple */
    }

    .bk-stat-text {
      text-align: left;
    }

    .bk-stat-text h3 {
      font-family: 'Space Grotesk', sans-serif;
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.1;
      margin: 0;
    }

    .bk-stat-text p {
      font-size: 11px;
      color: var(--text-subtle);
      font-weight: 600;
      margin: 3px 0 0 0;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    /* Responsive */
    @media (max-width: 960px) {
      .bk-perf-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px 24px;
      }
    }

    @media (max-width: 520px) {
      .bk-perf-stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px 12px;
        padding: 0 18px;
      }
      .bk-perf-stat-item {
        gap: 10px;
        justify-content: flex-start;
      }
      .bk-stat-circle {
        width: 40px;
        height: 40px;
        flex-shrink: 0;
      }
      .bk-stat-text h3 {
        font-size: 18px;
      }
      .bk-stat-text p {
        font-size: 9px;
      }
    }

    /* Product positioning: tracking and order operations */
    .bk-hero {
      grid-template-columns: minmax(0, 0.92fr) minmax(560px, 1.08fr);
      gap: 42px;
      padding: 58px 0 56px;
    }

    .bk-hero-sub {
      max-width: 540px;
      margin-bottom: 18px;
    }

    .bk-hero-capabilities,
    .bk-management-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .bk-hero-capabilities {
      margin-bottom: 26px;
    }

    .bk-hero-capabilities span,
    .bk-management-tags span {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 11px;
      border: 1px solid rgba(var(--primary-rgb), 0.18);
      border-radius: 99px;
      background: rgba(var(--primary-rgb), 0.07);
      color: var(--text-main);
      font-size: 11px;
      font-weight: 700;
    }

    .bk-hero-capabilities span::before,
    .bk-management-tags span::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 0 3px rgba(4, 120, 87, 0.12);
    }

    .bk-dashboard {
      max-width: 780px;
      box-shadow: 0 24px 64px rgba(var(--primary-rgb), 0.14);
    }

    .bk-management-band {
      width: min(100% - 48px, 1240px);
      margin: 12px auto 20px;
      padding: 1px;
      border-radius: 28px;
      background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.55), rgba(124, 58, 237, 0.22), rgba(4, 120, 87, 0.35));
      box-shadow: 0 22px 60px rgba(var(--primary-rgb), 0.12);
    }

    .bk-management-inner {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(420px, 0.92fr);
      gap: 36px;
      align-items: center;
      padding: 42px;
      border-radius: 27px;
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.54));
      backdrop-filter: blur(28px) saturate(150%);
    }

    .dark .bk-management-inner {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.72));
    }

    .bk-management-copy .bk-section-sub {
      max-width: 620px;
    }

    .bk-management-tags {
      margin: 22px 0 18px;
    }

    .bk-inline-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
    }

    .bk-inline-link span {
      transition: transform 0.2s ease;
    }

    .bk-inline-link:hover span {
      transform: translateX(4px);
    }

    .bk-ops-preview {
      padding: 20px;
      border: 1px solid var(--card-border);
      border-radius: 20px;
      background: var(--card-bg);
      box-shadow: var(--card-shadow);
    }

    .bk-ops-top,
    .bk-ops-row,
    .bk-ops-metrics {
      display: grid;
      align-items: center;
    }

    .bk-ops-top {
      grid-template-columns: 1fr auto;
      gap: 16px;
      margin-bottom: 16px;
    }

    .bk-ops-top small,
    .bk-ops-metrics small,
    .bk-ops-heading {
      color: var(--text-subtle);
      font-size: 9px;
      font-weight: 800;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .bk-ops-top h3 {
      margin-top: 3px;
      color: var(--text-main);
      font-family: Outfit, sans-serif;
      font-size: 17px;
    }

    .bk-ops-metrics {
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      margin-bottom: 14px;
    }

    .bk-ops-metrics div {
      padding: 11px;
      border: 1px solid var(--card-border);
      border-radius: 11px;
      background: var(--input-bg);
    }

    .bk-ops-metrics strong,
    .bk-ops-metrics span {
      display: block;
    }

    .bk-ops-metrics strong {
      margin: 4px 0 2px;
      color: var(--text-main);
      font-size: 19px;
    }

    .bk-ops-metrics span {
      color: var(--success);
      font-size: 10px;
      font-weight: 700;
    }

    .bk-ops-table {
      overflow: hidden;
      border: 1px solid var(--card-border);
      border-radius: 12px;
    }

    .bk-ops-row {
      grid-template-columns: 0.78fr 1fr 0.8fr;
      gap: 10px;
      min-height: 42px;
      padding: 0 12px;
      border-bottom: 1px solid var(--card-border);
      color: var(--text-muted);
      font-size: 11px;
    }

    .bk-ops-row:last-child {
      border-bottom: 0;
    }

    .bk-ops-row strong {
      color: var(--text-main);
    }

    .bk-ops-row em {
      justify-self: start;
      padding: 4px 7px;
      border-radius: 99px;
      font-size: 9px;
      font-style: normal;
      font-weight: 800;
    }

    .bk-ops-row em.booked {
      background: rgba(79, 70, 229, 0.12);
      color: var(--primary);
    }

    .bk-ops-row em.transit {
      background: rgba(245, 158, 11, 0.16);
      color: #b45309;
    }

    .bk-ops-row em.delivered {
      background: rgba(4, 120, 87, 0.14);
      color: var(--success);
    }

    .bk-plan.featured {
      transform: translateY(-10px);
      box-shadow: 0 18px 55px rgba(var(--primary-rgb), 0.22);
    }

    .bk-plan.featured:hover {
      transform: translateY(-15px);
    }

    .bk-faq-grid > div:first-child {
      padding: 24px;
      border: 1px solid rgba(var(--primary-rgb), 0.16);
      border-radius: 20px;
      background: rgba(var(--primary-rgb), 0.055);
    }

    .bk-audience-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 36px;
      text-align: left;
    }

    .bk-audience-card {
      padding: 22px;
    }

    .bk-audience-card strong {
      display: block;
      margin-bottom: 8px;
      color: var(--text-main);
      font-family: Outfit, sans-serif;
      font-size: 15px;
    }

    .bk-audience-card span {
      color: var(--text-muted);
      font-size: 12px;
      line-height: 1.7;
    }

    @media (max-width: 1080px) {
      .bk-hero {
        grid-template-columns: 1fr;
      }

      .bk-management-inner {
        grid-template-columns: 1fr;
      }

      .bk-audience-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 680px) {
      .bk-management-band {
        width: min(100% - 32px, 1240px);
      }

      .bk-management-inner {
        padding: 24px 18px;
      }

      .bk-ops-preview {
        padding: 14px;
      }

      .bk-ops-top {
        grid-template-columns: 1fr;
      }

      .bk-ops-metrics {
        grid-template-columns: 1fr;
      }

      .bk-audience-grid {
        grid-template-columns: 1fr;
      }
    }