/* =============================================
       RESET & BASE
    ============================================= */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
      color: #0F172A;
      background: #fff;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    img, svg { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    button { cursor: pointer; border: none; background: none; font-family: inherit; }
    ul, ol { list-style: none; }

    /* =============================================
       DESIGN TOKENS
    ============================================= */
    :root {
      --orange:       #F96332;
      --orange-dark:  #E04D1E;
      --orange-light: #FFF1EC;
      --orange-mid:   #FFD0BC;

      --slate-900: #0F172A;
      --slate-800: #1E293B;
      --slate-700: #334155;
      --slate-600: #475569;
      --slate-500: #64748B;
      --slate-400: #94A3B8;
      --slate-300: #CBD5E1;
      --slate-200: #E2E8F0;
      --slate-100: #F1F5F9;
      --slate-50:  #F8FAFC;
      --white:     #FFFFFF;

      --font-display: 'Plus Jakarta Sans', sans-serif;
      --font-body:    'Inter', sans-serif;

      --radius:    8px;
      --radius-lg: 16px;

      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
      --shadow-md: 0 4px 20px rgba(0,0,0,0.07);
      --shadow-lg: 0 12px 40px rgba(0,0,0,0.09);
    }

    /* =============================================
       LAYOUT UTILITY
    ============================================= */
    .container {
      max-width: 1160px;
      margin: 0 auto;
      padding: 0 36px;
    }

    /* =============================================
       NAVIGATION
    ============================================= */
    .nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 100;
      background: rgba(255,255,255,0.96);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--slate-200);
      transition: box-shadow 0.25s;
    }
    .nav.scrolled { box-shadow: var(--shadow-sm); }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 66px;
    }

    /* Logo: mirrors the brand — "seek" orange + "ANALYTICS" gray */
    .nav-logo {
      display: flex;
      flex-direction: column;
      line-height: 1;
      gap: 2px;
    }
    .nav-logo-seek {
      font-family: var(--font-display);
      font-size: 22px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--orange);
    }
    .nav-logo-analytics {
      font-family: var(--font-display);
      font-size: 9px;
      font-weight: 600;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--slate-400);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 36px;
    }
    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--slate-500);
      transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--slate-900); }

    .nav-cta {
      font-size: 14px;
      font-weight: 600;
      color: var(--white) !important;
      background: var(--orange);
      padding: 9px 22px;
      border-radius: 7px;
      transition: background 0.2s, transform 0.15s !important;
    }
    .nav-cta:hover {
      background: var(--orange-dark) !important;
      transform: translateY(-1px);
    }

    .nav-hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      padding: 5px;
    }
    .nav-hamburger span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--slate-700);
      border-radius: 2px;
      transition: all 0.3s;
    }

    /* =============================================
       HERO
    ============================================= */
    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      padding: 100px 0 80px;
      position: relative;
      overflow: hidden;
      background: var(--white);
    }

    /* Subtle dot-grid background */
    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: radial-gradient(circle, #CBD5E1 1px, transparent 1px);
      background-size: 30px 30px;
      opacity: 0.3;
      pointer-events: none;
    }
    /* Vignette fade so dots don't compete with content */
    .hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse 70% 80% at 30% 50%, rgba(255,255,255,0) 0%, rgba(255,255,255,0.6) 60%, rgba(255,255,255,1) 100%);
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 72px;
      align-items: center;
    }

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--orange);
      margin-bottom: 26px;
    }
    .hero-eyebrow::before {
      content: '';
      display: block;
      width: 28px;
      height: 2px;
      background: var(--orange);
      border-radius: 2px;
    }

    .hero h1 {
      font-family: var(--font-display);
      font-size: clamp(42px, 5.2vw, 66px);
      font-weight: 800;
      line-height: 1.07;
      letter-spacing: -2px;
      color: var(--slate-900);
      margin-bottom: 26px;
    }
    .hero h1 .accent { color: var(--orange); }

    .hero-sub {
      font-size: 17.5px;
      line-height: 1.75;
      color: var(--slate-500);
      max-width: 460px;
      margin-bottom: 44px;
    }

    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-family: var(--font-display);
      font-size: 15px;
      font-weight: 700;
      color: var(--white);
      background: var(--slate-900);
      padding: 14px 28px;
      border-radius: 8px;
      transition: background 0.2s, transform 0.15s;
    }
    .btn-primary:hover {
      background: var(--orange);
      transform: translateY(-1px);
    }
    .btn-primary svg { flex-shrink: 0; }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-family: var(--font-display);
      font-size: 15px;
      font-weight: 600;
      color: var(--slate-600);
      background: transparent;
      border: 1.5px solid var(--slate-300);
      padding: 14px 28px;
      border-radius: 8px;
      transition: border-color 0.2s, color 0.2s;
    }
    .btn-ghost:hover {
      border-color: var(--slate-900);
      color: var(--slate-900);
    }

    /* =============================================
       HERO GRAPHIC — abstract data pipeline
    ============================================= */
    .hero-visual {
      display: flex;
      justify-content: flex-end;
      align-items: center;
    }
    .hero-graphic {
      width: 100%;
      max-width: 500px;
    }

    /* =============================================
       SECTION BASE
    ============================================= */
    .section       { padding: 100px 0; }
    .section-alt   { background: var(--slate-50); }
    .section-dark  { background: var(--slate-900); color: var(--white); }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 11.5px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--orange);
      margin-bottom: 16px;
    }
    .section-label::before {
      content: '';
      display: block;
      width: 22px;
      height: 2px;
      background: var(--orange);
      border-radius: 2px;
    }

    .section-h2 {
      font-family: var(--font-display);
      font-size: clamp(30px, 3.8vw, 46px);
      font-weight: 800;
      letter-spacing: -1.5px;
      line-height: 1.1;
      color: var(--slate-900);
      margin-bottom: 18px;
    }
    .section-dark .section-h2 { color: var(--white); }

    .section-sub {
      font-size: 17px;
      line-height: 1.75;
      color: var(--slate-500);
      max-width: 580px;
    }
    .section-dark .section-sub { color: var(--slate-400); }

    .section-header          { margin-bottom: 60px; }
    .section-header.centered { text-align: center; }
    .section-header.centered .section-label  { justify-content: center; }
    .section-header.centered .section-label::before { display: none; }
    .section-header.centered .section-sub    { margin: 0 auto; }

    /* =============================================
       SERVICES
    ============================================= */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .service-card {
      background: var(--white);
      border: 1px solid var(--slate-200);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      position: relative;
      transition: border-color 0.22s, box-shadow 0.22s, transform 0.22s;
      overflow: hidden;
    }
    .service-card::after {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: var(--orange);
      border-radius: var(--radius-lg) var(--radius-lg) 0 0;
      opacity: 0;
      transition: opacity 0.22s;
    }
    .service-card:hover {
      border-color: var(--orange);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .service-card:hover::after { opacity: 1; }

    .service-icon {
      width: 44px;
      height: 44px;
      background: var(--orange-light);
      border-radius: var(--radius);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--orange);
      margin-bottom: 22px;
    }
    .service-icon svg { width: 21px; height: 21px; }

    .service-card h3 {
      font-family: var(--font-display);
      font-size: 16.5px;
      font-weight: 700;
      letter-spacing: -0.2px;
      color: var(--slate-900);
      margin-bottom: 12px;
    }
    .service-card p {
      font-size: 14.5px;
      line-height: 1.72;
      color: var(--slate-500);
    }

    /* =============================================
       CONTEXT SPRINT
    ============================================= */
    .context-sprint-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 72px;
      align-items: start;
    }

    .context-sprint-left .section-sub {
      margin-bottom: 20px;
    }

    .sprint-accent {
      font-size: 15px;
      font-weight: 600;
      color: var(--orange);
      line-height: 1.6;
      margin-bottom: 32px;
    }

    .context-sprint-cards {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .sprint-card-num {
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--orange);
      margin-bottom: 14px;
    }

    /* =============================================
       APPROACH (dark section)
    ============================================= */
    .approach-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 72px;
      align-items: center;
    }

    .approach-list {
      margin-top: 36px;
      display: flex;
      flex-direction: column;
      gap: 0;
    }
    .approach-list li {
      display: flex;
      gap: 16px;
      align-items: flex-start;
      padding: 18px 0;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      font-size: 15px;
      line-height: 1.65;
      color: #CBD5E1;
    }
    .approach-list li:last-child { border-bottom: none; }
    .check-circle {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      background: rgba(249,99,50,0.18);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-top: 2px;
      color: var(--orange);
    }
    .check-circle svg { width: 10px; height: 10px; }

    .stats-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .stat-box {
      padding: 28px 24px;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-lg);
      transition: border-color 0.2s;
    }
    .stat-box:hover { border-color: rgba(249,99,50,0.4); }
    .stat-number {
      font-family: var(--font-display);
      font-size: 48px;
      font-weight: 800;
      letter-spacing: -2px;
      color: var(--orange);
      line-height: 1;
      margin-bottom: 10px;
    }
    .stat-label {
      font-size: 13.5px;
      color: var(--slate-400);
      line-height: 1.5;
    }

    /* =============================================
       APPROACH — LIGHT BACKGROUND OVERRIDES
       (approach section is white, not section-dark)
    ============================================= */
    #approach .approach-list li {
      color: var(--slate-600);
      border-bottom-color: var(--slate-200);
    }
    #approach .stat-box {
      background: var(--slate-50);
      border-color: var(--slate-200);
    }
    #approach .stat-label { color: var(--slate-600); }

    /* =============================================
       TECHNOLOGIES
    ============================================= */
    .tech-stack {
      display: flex;
      flex-direction: column;
      gap: 36px;
    }
    .tech-row-label {
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--slate-400);
      margin-bottom: 14px;
    }
    .tech-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .tech-pill {
      font-size: 13px;
      font-weight: 500;
      color: var(--slate-600);
      background: var(--white);
      border: 1px solid var(--slate-200);
      border-radius: 6px;
      padding: 8px 16px;
      cursor: default;
      transition: border-color 0.2s, color 0.2s, background 0.2s;
    }
    .tech-pill:hover {
      border-color: var(--orange);
      color: var(--orange);
      background: var(--orange-light);
    }

    /* =============================================
       INDUSTRIES STRIP
    ============================================= */
    .industries-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      justify-content: center;
      margin-top: 44px;
    }
    .industry-tag {
      font-family: var(--font-display);
      font-size: 14px;
      font-weight: 600;
      color: var(--slate-700);
      background: var(--white);
      border: 1px solid var(--slate-200);
      border-radius: 100px;
      padding: 10px 22px;
    }

    /* =============================================
       CONTACT
    ============================================= */
    .contact-layout {
      display: grid;
      grid-template-columns: 1fr 1.6fr;
      gap: 80px;
      align-items: start;
    }

    .contact-lede {
      font-size: 16px;
      line-height: 1.78;
      color: var(--slate-500);
      margin-top: 18px;
    }
    .contact-lede + .contact-lede { margin-top: 14px; }

    .contact-card {
      background: var(--white);
      border: 1px solid var(--slate-200);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-row-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .form-group { margin-bottom: 18px; }
    .form-group:last-of-type { margin-bottom: 0; }

    .form-group label {
      display: block;
      font-size: 12.5px;
      font-weight: 600;
      letter-spacing: 0.02em;
      color: var(--slate-700);
      margin-bottom: 7px;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      font-family: var(--font-body);
      font-size: 14.5px;
      color: var(--slate-900);
      background: var(--slate-50);
      border: 1.5px solid var(--slate-200);
      border-radius: 8px;
      padding: 11px 15px;
      outline: none;
      appearance: none;
      -webkit-appearance: none;
      transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--orange);
      background: var(--white);
      box-shadow: 0 0 0 3px rgba(249,99,50,0.1);
    }
    .form-group input::placeholder,
    .form-group textarea::placeholder { color: var(--slate-300); }
    .form-group textarea {
      resize: vertical;
      min-height: 118px;
    }
    /* Custom select arrow */
    .form-group select {
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394A3B8' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 14px center;
      padding-right: 36px;
    }

    .form-submit {
      width: 100%;
      margin-top: 22px;
      font-family: var(--font-display);
      font-size: 15px;
      font-weight: 700;
      color: var(--white);
      background: var(--slate-900);
      border: none;
      border-radius: 8px;
      padding: 14px 28px;
      cursor: pointer;
      transition: background 0.2s, transform 0.15s;
    }
    .form-submit:hover { background: var(--orange); transform: translateY(-1px); }
    .form-submit:disabled { opacity: 0.65; cursor: not-allowed; transform: none; }

    .form-success {
      display: none;
      text-align: center;
      padding: 32px 0;
    }
    .form-success.show { display: block; }
    .success-icon {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: var(--orange-light);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      color: var(--orange);
    }
    .form-success h3 {
      font-family: var(--font-display);
      font-size: 20px;
      font-weight: 700;
      color: var(--slate-900);
      margin-bottom: 8px;
    }
    .form-success p { font-size: 15px; color: var(--slate-500); }

    /* =============================================
       FOOTER
    ============================================= */
    .footer {
      background: var(--slate-900);
      padding: 44px 0;
    }
    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }
    .footer-logo-seek {
      font-family: var(--font-display);
      font-size: 18px;
      font-weight: 800;
      color: var(--orange);
      letter-spacing: -0.3px;
    }
    .footer-logo-analytics {
      font-family: var(--font-display);
      font-size: 8px;
      font-weight: 600;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--slate-500);
    }
    .footer-logo { display: flex; flex-direction: column; gap: 2px; line-height: 1; }

    .footer-copy { font-size: 13px; color: var(--slate-600); }

    .footer-nav {
      display: flex;
      gap: 28px;
    }
    .footer-nav a {
      font-size: 13px;
      color: var(--slate-600);
      transition: color 0.2s;
    }
    .footer-nav a:hover { color: var(--white); }

    /* =============================================
       SPECTRUM BAR
    ============================================= */
    .spectrum-bar {
      background: var(--white);
      border: 1px solid var(--slate-200);
      border-radius: var(--radius-lg);
      padding: 22px 28px 18px;
      margin-bottom: 52px;
    }
    .spectrum-track-row {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 10px;
    }
    .spectrum-end {
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.01em;
      color: var(--slate-500);
      white-space: nowrap;
      flex-shrink: 0;
    }
    .spectrum-end.right { text-align: right; }
    .spectrum-track {
      flex: 1;
      height: 5px;
      border-radius: 5px;
      background: linear-gradient(to right, var(--orange-mid), var(--orange), var(--orange-dark));
      position: relative;
    }
    .spectrum-labels {
      display: flex;
      justify-content: space-between;
      padding: 0 2px;
    }
    .spectrum-label {
      font-size: 11px;
      color: var(--slate-400);
      font-weight: 500;
      text-align: center;
      max-width: 100px;
    }

    /* =============================================
       FEATURED (WIDE) SERVICE CARD
    ============================================= */
    .service-card-wide {
      grid-column: 1 / -1;
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 28px;
      align-items: start;
      background: var(--white);
      border: 1px solid var(--slate-200);
      border-radius: var(--radius-lg);
      padding: 36px 36px;
      position: relative;
      transition: border-color 0.22s, box-shadow 0.22s;
      overflow: hidden;
    }
    .service-card-wide::after {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: var(--orange);
      border-radius: var(--radius-lg) var(--radius-lg) 0 0;
      opacity: 0;
      transition: opacity 0.22s;
    }
    .service-card-wide:hover {
      border-color: var(--orange);
      box-shadow: var(--shadow-md);
    }
    .service-card-wide:hover::after { opacity: 1; }
    .service-card-wide .service-icon {
      margin-bottom: 0;
      margin-top: 2px;
    }
    .service-card-wide-body {}
    .service-card-wide h3 {
      font-family: var(--font-display);
      font-size: 16.5px;
      font-weight: 700;
      letter-spacing: -0.2px;
      color: var(--slate-900);
      margin-bottom: 10px;
    }
    .service-card-wide p {
      font-size: 14.5px;
      line-height: 1.72;
      color: var(--slate-500);
      max-width: 780px;
    }
    .service-card-wide .tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }
    .service-card-wide .tag {
      font-size: 12px;
      font-weight: 500;
      color: var(--orange);
      background: var(--orange-light);
      border: 1px solid var(--orange-mid);
      border-radius: 5px;
      padding: 4px 12px;
    }

    /* =============================================
       SCROLL ANIMATIONS
    ============================================= */
    .fade-up {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.55s ease, transform 0.55s ease;
    }
    .fade-up.in { opacity: 1; transform: none; }
    .fade-up:nth-child(2) { transition-delay: 0.08s; }
    .fade-up:nth-child(3) { transition-delay: 0.16s; }
    .fade-up:nth-child(4) { transition-delay: 0.24s; }
    .fade-up:nth-child(5) { transition-delay: 0.32s; }
    .fade-up:nth-child(6) { transition-delay: 0.40s; }

    /* =============================================
       RESPONSIVE
    ============================================= */
    @media (max-width: 1024px) {
      .hero-inner    { grid-template-columns: 1fr; }
      .hero-visual   { display: none; }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .context-sprint-layout { grid-template-columns: 1fr; gap: 48px; }
      .approach-grid { grid-template-columns: 1fr; gap: 48px; }
    }

    @media (max-width: 768px) {
      .container { padding: 0 20px; }
      .section   { padding: 72px 0; }
      .services-grid { grid-template-columns: 1fr; }
      .context-sprint-cards { grid-template-columns: 1fr; }
      .contact-layout { grid-template-columns: 1fr; gap: 40px; }
      .form-row-2 { grid-template-columns: 1fr; }
      .stats-grid { grid-template-columns: 1fr 1fr; }
      .footer-inner { flex-direction: column; text-align: center; }
      .footer-nav { justify-content: center; }

      /* Mobile nav */
      .nav-links {
        display: none;
        position: absolute;
        top: 66px; left: 0; right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--slate-200);
        flex-direction: column;
        padding: 20px 24px 24px;
        gap: 18px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.open { display: flex; }
      .nav-hamburger  { display: flex; }
    }

    @media (max-width: 480px) {
      .stats-grid { grid-template-columns: 1fr; }
      .hero h1 { letter-spacing: -1.5px; }
    }

    /* =============================================
       AI READINESS BADGE
    ============================================= */
    .ai-readiness-badge {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: var(--orange-dark);
      background: var(--orange-light);
      border: 1px solid var(--orange-mid);
      border-radius: 20px;
      padding: 3px 10px 3px 8px;
      margin-bottom: 12px;
    }
    .ai-readiness-badge svg { flex-shrink: 0; }

    /* =============================================
       ENGAGEMENT MODELS
    ============================================= */
    .engagement-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 48px;
    }
    .engagement-card {
      background: var(--white);
      border: 1px solid var(--slate-200);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: box-shadow 0.22s, transform 0.22s;
      display: flex;
      flex-direction: column;
    }
    .engagement-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }
    .engagement-icon {
      width: 42px;
      height: 42px;
      border-radius: var(--radius);
      background: var(--orange-light);
      color: var(--orange);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      flex-shrink: 0;
    }
    .engagement-card h3 {
      font-family: var(--font-display);
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--slate-900);
    }
    .engagement-card > p {
      font-size: 14px;
      line-height: 1.68;
      color: var(--slate-600);
      margin-bottom: 20px;
      flex: 1;
    }
    .best-for {
      background: var(--slate-50);
      border: 1px solid var(--slate-200);
      border-radius: var(--radius);
      padding: 12px 14px;
    }
    .best-for-label {
      font-size: 9.5px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--slate-400);
      margin-bottom: 5px;
    }
    .best-for p {
      font-size: 13px;
      color: var(--slate-600);
      line-height: 1.5;
      margin: 0;
    }

    /* =============================================
       FAQ
    ============================================= */
    .faq-section {
      margin-top: 72px;
      border-top: 1px solid var(--slate-200);
      padding-top: 52px;
    }
    .faq-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 40px;
      margin-top: 28px;
    }
    .faq-item h4 {
      font-family: var(--font-display);
      font-size: 15px;
      font-weight: 700;
      color: var(--slate-800);
      margin-bottom: 8px;
    }
    .faq-item p {
      font-size: 14px;
      color: var(--slate-500);
      line-height: 1.7;
    }

    /* Responsive: engagement + faq */
    @media (max-width: 1024px) {
      .engagement-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .engagement-grid { grid-template-columns: 1fr; }
      .faq-grid        { grid-template-columns: 1fr; gap: 28px; }
    }

    /* =============================================
       HERO ICEBERG DIAGRAM
    ============================================= */
    .iceberg-diagram {
      width: 100%;
      max-width: 500px;
    }
    .iceberg-zone-label {
      display: block;
      font-size: 9.5px;
      font-weight: 700;
      letter-spacing: 0.10em;
      text-transform: uppercase;
      color: var(--slate-400);
      margin-bottom: 8px;
    }
    .iceberg-ai-layer {
      background: rgba(248,250,252,0.60);
      border: 1px dashed #E2E8F0;
      border-radius: 10px 10px 0 0;
      padding: 12px 14px 4px;
      border-bottom: none;
    }
    .iceberg-tool-row {
      display: flex;
      gap: 6px;
      margin-bottom: 6px;
    }
    .iceberg-tool-row:last-child { margin-bottom: 0; }
    .iceberg-tool-card {
      flex: 1;
      background: var(--white);
      border: 1px solid var(--slate-200);
      border-radius: 6px;
      box-shadow: 0 1px 2px rgba(0,0,0,0.05);
      padding: 8px 4px;
      text-align: center;
      font-family: var(--font-display);
      font-size: 10px;
      font-weight: 700;
      color: var(--slate-900);
      letter-spacing: -0.3px;
      line-height: 1.2;
    }
    .iceberg-divider {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 10px 0;
    }
    .iceberg-divider-line {
      flex: 1;
      height: 1.5px;
      background: rgba(249,99,50,0.60);
    }
    .iceberg-divider-label {
      flex-shrink: 0;
      font-family: var(--font-display);
      font-size: 8.5px;
      font-weight: 700;
      letter-spacing: 0.10em;
      text-transform: uppercase;
      color: var(--slate-500);
    }
    .iceberg-node-graph { width: 100%; display: block; margin-top: 6px; }
    .iceberg-foundation { padding-top: 10px; }
    .iceberg-layers {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0;
    }
    .iceberg-layer-wrap {
      width: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    .iceberg-layer {
      width: 100%;
      border-radius: 8px;
      padding: 10px 14px;
      text-align: center;
    }
    .iceberg-layer-name {
      display: block;
      font-family: var(--font-display);
      font-size: 14px;
      font-weight: 700;
      letter-spacing: -0.2px;
      line-height: 1.3;
      margin-bottom: 2px;
    }
    .iceberg-layer-desc {
      display: block;
      font-family: var(--font-body);
      font-size: 11px;
      line-height: 1.4;
    }
    .iceberg-connector {
      width: 1.5px;
      height: 8px;
      background: #E8692A;
      margin: 0 auto;
    }
    .iceberg-semantic-wrapper {
      position: relative;
      border: 2px solid #94A3B8;
      border-radius: 8px;
      padding: 24px 10px 10px;
      width: 100%;
    }
    .iceberg-semantic-legend {
      position: absolute;
      top: -10px;
      left: 12px;
      background: #ffffff;
      padding: 2px 8px;
      border-radius: 4px;
      font-family: var(--font-body);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #475569;
      line-height: 1.3;
      white-space: nowrap;
    }
    .iceberg-semantic-subtitle {
      display: block;
      font-family: var(--font-body);
      font-size: 10px;
      color: #94A3B8;
      text-align: center;
      margin-bottom: 10px;
    }
    /* Nav logo iceberg mark (v3) */
    .nav-logo-with-mark {
      flex-direction: row !important;
      align-items: center !important;
      gap: 8px;
    }
    .nav-logo-mark { flex-shrink: 0; display: block; }
    .nav-logo-wordmark { display: flex; flex-direction: column; gap: 2px; line-height: 1; }
    /* Footer logo iceberg mark (v3) */
    .footer-logo-with-mark {
      flex-direction: row !important;
      align-items: center !important;
      gap: 7px;
    }
    .footer-logo-mark { flex-shrink: 0; display: block; }
    .footer-logo-wordmark { display: flex; flex-direction: column; gap: 2px; line-height: 1; }

    /* Context section */
    .context-content {
      max-width: 640px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .context-para {
      font-family: var(--font-body);
      font-size: 16px;
      line-height: 1.75;
      color: var(--slate-300);
      margin: 0;
    }
    .context-aside {
      font-family: var(--font-body);
      font-size: 15px;
      line-height: 1.7;
      color: var(--orange);
      border-top: 1px solid var(--slate-700);
      padding-top: 24px;
      margin: 0;
    }

    /* Interstitial section */
    .section-interstitial {
      padding-top: 72px;
      padding-bottom: 72px;
    }
    .interstitial-inner {
      max-width: 560px;
      margin: 0 auto;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 16px;
    }
    .interstitial-statement {
      font-family: var(--font-display);
      font-size: clamp(22px, 2.8vw, 32px);
      font-weight: 700;
      color: var(--slate-800);
      margin: 0;
    }
    .interstitial-sub {
      font-family: var(--font-body);
      font-size: 16px;
      color: var(--slate-500);
      line-height: 1.6;
      margin: 0;
    }