    /* ─── Reset & Base ────────────────────────────────── */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    :root {
      --black: #111111;
      --black-soft: #2A2A2A;
      --gray-dark: #555555;
      --gray-mid: #888888;
      --gray-light: #CCCCCC;
      --border: #E4E4E0;
      --bg: #F7F7F4;
      --bg-white: #FFFFFF;
      --radius: 20px;
      --radius-sm: 14px;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
      --shadow: 0 4px 24px rgba(0, 0, 0, 0.09);
      --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.11);
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Inter', system-ui, sans-serif;
      background: var(--bg);
      color: var(--black);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    /* ─── Utility ─────────────────────────────────────── */
    .container {
      width: 100%;
      max-width: 680px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 16px 32px;
      border-radius: 100px;
      font-weight: 700;
      font-size: 1rem;
      cursor: pointer;
      text-decoration: none;
      transition: all 0.2s ease;
      border: none;
      letter-spacing: -0.01em;
    }

    .btn-primary {
      background: var(--black);
      color: #fff;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    }

    .btn-primary:hover {
      background: var(--black-soft);
      transform: translateY(-2px);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.28);
    }

    .btn-primary:active {
      transform: translateY(0);
    }

    .btn-lg {
      padding: 18px 40px;
      font-size: 1.05rem;
    }

    /* ─── Scroll Animations ───────────────────────────── */
    .fade-up {
      opacity: 0;
      transform: translateY(22px);
      transition: opacity 0.55s ease, transform 0.55s ease;
    }

    .fade-up.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .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;
    }

    /* ─── Navbar ──────────────────────────────────────── */
    nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(247, 247, 244, 0.9);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 13px 20px;
      max-width: 680px;
      margin: 0 auto;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 9px;
      text-decoration: none;
    }

    .logo img {
      height: 36px;
      width: auto;
      display: block;
    }

    .nav-cta {
      padding: 9px 20px;
      font-size: 0.875rem;
    }

    /* ─── Hero ────────────────────────────────────────── */
    #hero {
      padding: 52px 0 0;
      text-align: center;
      background: var(--bg);
      overflow: hidden;
    }

    .hero-badges {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 22px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--bg-white);
      border: 1.5px solid var(--border);
      color: var(--gray-dark);
      font-size: 0.76rem;
      font-weight: 600;
      padding: 5px 13px;
      border-radius: 100px;
      box-shadow: var(--shadow-sm);
      white-space: nowrap;
    }

    .badge.live .dot {
      width: 7px;
      height: 7px;
      background: #22C55E;
      border-radius: 50%;
      animation: pulse-dot 2s ease-in-out infinite;
      box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
    }

    @keyframes pulse-dot {
      0% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
      }

      70% {
        box-shadow: 0 0 0 6px rgba(34, 197, 94, 0);
      }

      100% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
      }
    }

    h1 {
      font-size: clamp(2.2rem, 8.5vw, 3.3rem);
      font-weight: 900;
      line-height: 1.1;
      letter-spacing: -0.04em;
      color: var(--black);
      margin-bottom: 16px;
    }

    .hero-sub {
      font-size: 1.05rem;
      color: var(--gray-dark);
      max-width: 340px;
      margin: 0 auto 30px;
      line-height: 1.65;
      font-weight: 400;
    }

    .hero-cta-group {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
      margin-bottom: 36px;
    }

    .hero-cta-note {
      font-size: 0.79rem;
      color: var(--gray-mid);
    }

    /* Hero car image — transparent bg, sits below text */
    .hero-car {
      display: block;
      width: 100%;
      max-width: 540px;
      margin: 0 auto;
      height: auto;
      /* slight drop shadow to anchor the car to the page */
      filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.14));
    }

    /* ─── Section base ────────────────────────────────── */
    section {
      padding: 72px 0;
    }

    h2 {
      font-size: clamp(1.65rem, 5.5vw, 2.25rem);
      font-weight: 800;
      letter-spacing: -0.03em;
      line-height: 1.2;
      margin-bottom: 10px;
      color: var(--black);
    }

    .section-header {
      text-align: center;
      margin-bottom: 36px;
    }

    .section-sub {
      color: var(--gray-dark);
      font-size: 1rem;
      max-width: 360px;
      margin: 0 auto;
    }

    /* ─── Sound Familiar (formerly Problem) ──────────── */
    #familiar {
      background: var(--bg-white);
    }

    .familiar-intro {
      text-align: center;
      margin-bottom: 28px;
    }

    .familiar-intro p {
      font-size: 1rem;
      color: var(--gray-dark);
      max-width: 340px;
      margin: 8px auto 0;
    }

    .moment-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .moment-item {
      background: var(--bg);
      border: 1.5px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
      display: flex;
      align-items: flex-start;
      gap: 14px;
      transition: border-color 0.2s;
    }

    .moment-item:hover {
      border-color: #BBBBB7;
    }

    .moment-quote {
      font-size: 1rem;
      font-weight: 600;
      color: var(--gray-light);
      flex-shrink: 0;
      margin-top: 2px;
      letter-spacing: -0.02em;
    }

    .moment-text {
      font-size: 0.93rem;
      font-weight: 500;
      color: var(--black);
      line-height: 1.5;
    }

    .moment-text small {
      display: block;
      font-weight: 400;
      color: var(--gray-mid);
      font-size: 0.81rem;
      margin-top: 2px;
    }

    /* ─── How It Works ────────────────────────────────── */
    #how-it-works {
      background: var(--bg);
    }

    .steps {
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .steps::before {
      content: '';
      position: absolute;
      left: 27px;
      top: 48px;
      bottom: 48px;
      width: 2px;
      background: linear-gradient(to bottom, var(--black), rgba(0, 0, 0, 0.05));
    }

    .step {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      padding: 18px 0;
      position: relative;
    }

    .step-num {
      width: 54px;
      height: 54px;
      border-radius: 50%;
      background: var(--black);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      color: #fff;
      flex-shrink: 0;
      position: relative;
      z-index: 1;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
    }

    .step-content {
      padding-top: 13px;
    }

    .step-content h3 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 3px;
      color: var(--black);
    }

    .step-content p {
      font-size: 0.88rem;
      color: var(--gray-dark);
      line-height: 1.55;
    }

    /* ─── Final CTA ───────────────────────────────────── */
    #final-cta {
      padding: 72px 0 120px;
      background: var(--bg-white);
    }

    .final-cta-inner {
      background: var(--black);
      border-radius: var(--radius);
      padding: 52px 32px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    /* subtle texture lines */
    .final-cta-inner::before {
      content: '';
      position: absolute;
      top: -60px;
      right: -60px;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      border: 40px solid rgba(255, 255, 255, 0.04);
    }

    .final-cta-inner::after {
      content: '';
      position: absolute;
      bottom: -40px;
      left: -40px;
      width: 150px;
      height: 150px;
      border-radius: 50%;
      border: 30px solid rgba(255, 255, 255, 0.03);
    }

    .cta-week-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: rgba(255, 255, 255, 0.75);
      font-size: 0.76rem;
      font-weight: 600;
      padding: 5px 13px;
      border-radius: 100px;
      margin-bottom: 20px;
      letter-spacing: 0.04em;
    }

    .final-cta-inner h2 {
      color: #fff;
      font-size: clamp(1.5rem, 5vw, 2rem);
      margin-bottom: 12px;
    }

    .final-cta-inner p {
      color: rgba(255, 255, 255, 0.58);
      margin-bottom: 30px;
      font-size: 0.96rem;
      max-width: 360px;
      margin-left: auto;
      margin-right: auto;
    }

    .btn-white {
      background: #fff;
      color: var(--black);
      font-weight: 800;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    }

    .btn-white:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
    }

    /* ─── Footer ──────────────────────────────────────── */
    footer {
      border-top: 1px solid var(--border);
      padding: 24px 20px;
      text-align: center;
      background: var(--bg);
    }

    .footer-logo {
      font-size: 1rem;
      font-weight: 800;
      color: var(--black);
      margin-bottom: 4px;
    }

    .footer-note {
      font-size: 0.78rem;
      color: var(--gray-mid);
    }

    /* ─── Sticky Mobile CTA ───────────────────────────── */
    .sticky-cta {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 200;
      padding: 12px 16px 20px;
      background: rgba(247, 247, 244, 0.95);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-top: 1px solid var(--border);
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .sticky-cta a {
      display: block;
      width: 100%;
      text-align: center;
    }

    @media (max-width: 768px) {
      .sticky-cta {
        display: block;
      }
    }

    /* ─── Responsive ──────────────────────────────────── */
    @media (max-width: 480px) {
      .hero-badges {
        flex-direction: column;
      }
    }

    /* ─── CTA pulse ───────────────────────────────────── */
    @keyframes btn-pulse {

      0%,
      100% {
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.22);
      }

      50% {
        box-shadow: 0 4px 32px rgba(0, 0, 0, 0.36);
      }
    }

    .btn-pulse {
      animation: btn-pulse 2.8s ease-in-out infinite;
    }

    /* ─── How it works CTA ────────────────────────────── */
    .section-cta {
      text-align: center;
      margin-top: 40px;
    }

    /* ─── Success Page Details ────────────────────────── */
    .details-card {
      background: var(--bg-white);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 24px;
      margin-bottom: 32px;
    }
    .details-group {
      margin-bottom: 24px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border);
    }
    .details-group:last-child {
      margin-bottom: 0;
      padding-bottom: 0;
      border-bottom: none;
    }
    .details-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
    }
    .details-row:last-child {
      margin-bottom: 0;
    }
    .details-label {
      color: var(--gray-mid);
      font-size: 0.9rem;
    }
    .details-value {
      color: var(--black);
      font-weight: 500;
      font-size: 0.95rem;
      text-align: right;
    }
  
