:root {
      --deep-blue: #1F4F82;
      --dark-blue: #06243E;
      --ice-blue: #A7C8ED;
      --grey-frost: #E5E8EC;
      --cta: #1F4F82;
      --cta-hover: #103A5E;
      --text: #06243E;
      --surface: #FFFFFF;
      --muted: #4F6783;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: "Inter", Arial, sans-serif;
      color: var(--text);
      background-color: var(--grey-frost);
      line-height: 1.6;
      scroll-behavior: smooth;
    }

    h1, h2, h3, h4 {
      font-family: "Poppins", "Inter", sans-serif;
      margin: 0;
      color: var(--dark-blue);
    }

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

    .hero {
      background: linear-gradient(135deg, var(--dark-blue), var(--deep-blue));
      color: #FFFFFF;
      padding: 32px 24px 96px;
      position: relative;
      overflow: hidden;
    }

    .hero::after {
      content: "";
      position: absolute;
      bottom: -140px;
      right: -80px;
      width: 360px;
      height: 360px;
      background: radial-gradient(circle at center, rgba(167, 200, 237, 0.5), rgba(6, 36, 62, 0));
      transform: rotate(18deg);
    }

    .nav {
      max-width: 1080px;
      margin: 0 auto 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      position: relative;
      z-index: 1;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-family: "Poppins", sans-serif;
      font-weight: 700;
      font-size: 26px;
      letter-spacing: 0.02em;
    }

    .logo img {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      background-color: rgba(255, 255, 255, 0.08);
      padding: 4px;
      box-shadow: 0 8px 18px rgba(6, 36, 62, 0.25);
    }

    .nav-links {
      display: flex;
      gap: 28px;
      font-size: 15px;
      font-weight: 500;
    }

    .hero-content {
      max-width: 1080px;
      margin: 0 auto;
      display: grid;
      gap: 56px;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      position: relative;
      z-index: 1;
    }

    .hero-text {
      display: flex;
      flex-direction: column;
      gap: 18px;
      height: 100%;
    }

    .hero-text h1 {
      font-size: clamp(38px, 5vw, 52px);
      line-height: 1.1;
      color: #FFFFFF;
    }

    .hero-text p {
      margin: 20px 0 32px;
      font-size: 18px;
      color: rgba(255, 255, 255, 0.8);
      max-width: 520px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      margin-top: auto;
    }

    .testimonial-card {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(167, 200, 237, 0.3);
      border-radius: 20px;
      padding: 26px 28px;
      color: rgba(255, 255, 255, 0.88);
      box-shadow: 0 18px 40px rgba(6, 36, 62, 0.25);
      font-size: 16px;
      line-height: 1.6;
      max-width: 520px;
      display: grid;
      gap: 18px;
    }

    .testimonial-card .quote {
      font-style: italic;
      margin: 0;
    }


    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 28px;
      border-radius: 12px;
      border: none;
      font-weight: 600;
      font-size: 16px;
      cursor: pointer;
      transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
    }

    .btn-primary {
      background-color: var(--cta);
      color: #FFFFFF;
      box-shadow: 0 12px 30px rgba(16, 58, 94, 0.3);
    }

    .btn-primary:hover {
      background-color: var(--cta-hover);
      transform: translateY(-2px);
    }

    .btn-secondary {
      background-color: transparent;
      color: #FFFFFF;
      border: 1px solid rgba(255, 255, 255, 0.4);
    }

    .btn-secondary:hover {
      background-color: rgba(255, 255, 255, 0.08);
      transform: translateY(-2px);
    }

    .mockup {
      background: linear-gradient(160deg, rgba(167, 200, 237, 0.65), rgba(31, 79, 130, 0.35));
      border-radius: 32px;
      padding: 24px;
      min-height: 420px;
      position: relative;
      box-shadow: 0 20px 40px rgba(15, 45, 76, 0.35);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .mockup::before {
      content: "";
      position: absolute;
      top: 38px;
      left: 50%;
      transform: translateX(-50%);
      width: 28px;
      height: 4px;
      border-radius: 2px;
      background: rgba(255, 255, 255, 0.7);
    }

    .mockup-screen {
      width: min(320px, 80%);
      max-width: 100%;
      aspect-ratio: 9 / 19.5;
      background: #FFFFFF;
      border-radius: 28px;
      padding: 28px 22px;
      display: flex;
      flex-direction: column;
      gap: 20px;
      justify-content: space-between;
      color: var(--text);
      position: relative;
      box-shadow: inset 0 0 0 1px rgba(16, 58, 94, 0.08);
    }

    .mockup-screen h3 {
      font-size: 18px;
      color: var(--deep-blue);
    }

    .mockup-chip-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .mockup-chip {
      padding: 6px 12px;
      border-radius: 999px;
      background: rgba(167, 200, 237, 0.4);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.02em;
      color: var(--deep-blue);
    }

    .mockup-waveform {
      width: 100%;
      height: 120px;
      border-radius: 18px;
      background: linear-gradient(90deg, rgba(31, 79, 130, 0.12), rgba(167, 200, 237, 0.5));
      display: grid;
      grid-template-columns: repeat(24, minmax(0, 1fr));
      gap: clamp(2px, 0.8vw, 4px);
      padding: clamp(10px, 2.5vw, 16px);
      align-items: end;
      overflow: hidden;
    }

    .mockup-waveform span {
      display: block;
      width: 100%;
      border-radius: 4px 4px 2px 2px;
      background: rgba(16, 58, 94, 0.55);
      height: calc(20% + (var(--i) * 4%));
    }

    .section {
      padding: 96px 24px;
    }

    .section-light {
      background-color: var(--surface);
    }

    .section-header {
      max-width: 700px;
      margin: 0 auto 56px;
      text-align: center;
    }

    .section-header span {
      display: inline-block;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 12px;
    }

    .section-header h2 {
      font-size: clamp(30px, 4vw, 40px);
      color: var(--dark-blue);
    }

    .section-header p {
      margin-top: 16px;
      color: var(--muted);
      font-size: 17px;
    }

    .features-grid {
      max-width: 1080px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 28px;
    }

    .feature-card {
      background: var(--surface);
      border-radius: 24px;
      padding: 28px;
      box-shadow: 0 18px 35px rgba(6, 36, 62, 0.08);
      display: flex;
      flex-direction: column;
      gap: 18px;
      border: 1px solid rgba(31, 79, 130, 0.06);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 26px 45px rgba(6, 36, 62, 0.14);
    }

    .feature-icon {
      width: 52px;
      height: 52px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      background: rgba(167, 200, 237, 0.35);
    }

    .feature-icon svg {
      width: 28px;
      height: 28px;
      fill: var(--deep-blue);
    }

    .feature-card h3 {
      font-size: 20px;
      color: var(--dark-blue);
    }

    .feature-card p {
      color: var(--muted);
      font-size: 15px;
    }

    .workflow {
      max-width: 1040px;
      margin: 0 auto;
      display: grid;
      gap: 24px;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .step {
      background: var(--surface);
      border-radius: 24px;
      padding: 32px 28px;
      border: 1px solid rgba(31, 79, 130, 0.05);
      box-shadow: 0 12px 30px rgba(6, 36, 62, 0.08);
      position: relative;
    }

    .step-number {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: rgba(31, 79, 130, 0.12);
      color: var(--deep-blue);
      font-weight: 600;
      display: grid;
      place-items: center;
      margin-bottom: 16px;
      font-size: 16px;
    }

    .step h3 {
      font-size: 18px;
      margin-bottom: 12px;
    }

    .step p {
      font-size: 15px;
      color: var(--muted);
    }

    .split-layout {
      max-width: 1080px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 40px;
      align-items: center;
    }

    .list {
      display: grid;
      gap: 16px;
      margin-top: 24px;
    }

    .list-item {
      display: grid;
      grid-template-columns: 26px 1fr;
      gap: 16px;
      align-items: start;
      color: var(--muted);
      font-size: 15px;
    }

    .dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--ice-blue);
      border: 3px solid rgba(16, 58, 94, 0.4);
      margin-top: 4px;
    }

    blockquote {
      background: rgba(167, 200, 237, 0.25);
      border-left: 4px solid var(--deep-blue);
      margin: 32px 0 0;
      padding: 24px;
      border-radius: 18px;
      font-style: italic;
      color: var(--dark-blue);
    }

    blockquote cite {
      display: block;
      margin-top: 12px;
      font-style: normal;
      font-weight: 600;
      color: var(--deep-blue);
    }

    .cta {
      max-width: 960px;
      margin: 0 auto;
      text-align: center;
      background: linear-gradient(120deg, rgba(31, 79, 130, 0.9), rgba(6, 36, 62, 0.95));
      color: #FFFFFF;
      padding: 72px 48px;
      border-radius: 32px;
      box-shadow: 0 28px 60px rgba(6, 36, 62, 0.25);
    }

    .cta h2 {
      color: #FFFFFF;
      font-size: clamp(30px, 4vw, 42px);
      margin-bottom: 18px;
    }

    .cta p {
      color: rgba(255, 255, 255, 0.8);
      font-size: 17px;
      margin-bottom: 32px;
    }

    footer {
      padding: 48px 24px;
      background: #F2F5F9;
      color: var(--muted);
      font-size: 14px;
      text-align: center;
    }

    footer span {
      color: var(--dark-blue);
      font-weight: 600;
    }

    @media (max-width: 720px) {
      .hero {
        padding-bottom: 72px;
      }

      .nav {
        flex-direction: column;
        gap: 16px;
      }

      .nav-links {
        gap: 18px;
      }

      .hero-content {
        grid-template-columns: 1fr;
        gap: 48px;
      }

      .hero-text p {
        max-width: none;
      }

      .mockup {
        min-height: 360px;
      }
    }


    .footer-credit {
      margin-top: 12px;
      font-size: 13px;
    }

    .footer-credit a {
      color: var(--deep-blue);
      font-weight: 600;
    }