:root {
      color-scheme: light;
      --ink: #17211f;
      --muted: #586662;
      --soft: #eef4f1;
      --panel: #ffffff;
      --line: #d9e4df;
      --teal: #0f766e;
      --teal-dark: #0b4f49;
      --coral: #e16f58;
      --sun: #f4b642;
      --sky: #dceef6;
      --shadow: 0 18px 50px rgba(23, 33, 31, 0.12);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: #fbf9f5;
      color: var(--ink);
      font-size: 16px;
      line-height: 1.6;
    }

    img {
      display: block;
      max-width: 100%;
    }

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

    .skip-link {
      position: absolute;
      left: 16px;
      top: -80px;
      z-index: 20;
      padding: 10px 14px;
      border-radius: 8px;
      background: var(--ink);
      color: #fff;
      transition: top 0.2s ease;
    }

    .skip-link:focus {
      top: 16px;
    }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 10;
      border-bottom: 1px solid rgba(217, 228, 223, 0.8);
      background: rgba(251, 249, 245, 0.92);
      backdrop-filter: blur(16px);
    }

    .nav {
      width: min(1120px, calc(100% - 32px));
      height: 72px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      letter-spacing: 0;
    }

    .brand-logo {
      width: 38px;
      height: 38px;
      border-radius: 8px;
      object-fit: cover;
      box-shadow: 0 10px 25px rgba(15, 118, 110, 0.25);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 22px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
    }

    .nav-links a:hover,
    .nav-links a:focus {
      color: var(--teal-dark);
    }

    .nav-download {
      padding: 10px 16px;
      border-radius: 8px;
      background: var(--ink);
      color: #fff;
    }

    .language-select {
      min-width: 138px;
      height: 40px;
      padding: 0 32px 0 12px;
      border: 1px solid var(--line);
      border-radius: 8px;
      background: #fff;
      color: var(--ink);
      font: inherit;
      font-size: 14px;
      font-weight: 700;
    }

    .section {
      padding: 86px 0;
    }

    .wrap {
      width: min(1120px, calc(100% - 32px));
      margin: 0 auto;
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 74px 0 54px;
      background:
        linear-gradient(120deg, rgba(244, 182, 66, 0.24), rgba(220, 238, 246, 0.64) 42%, rgba(238, 244, 241, 0.88)),
        #fbf9f5;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(340px, 0.88fr);
      gap: 54px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 10px;
      border: 1px solid rgba(15, 118, 110, 0.2);
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.68);
      color: var(--teal-dark);
      font-size: 13px;
      font-weight: 800;
    }

    .hero h1 {
      max-width: 780px;
      margin: 22px 0 20px;
      font-size: clamp(44px, 6vw, 76px);
      line-height: 0.96;
      letter-spacing: 0;
    }

    .hero-lede {
      max-width: 660px;
      margin: 0 0 28px;
      color: #33413e;
      font-size: clamp(18px, 2vw, 22px);
    }

    .download-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      margin: 28px 0;
    }

    .store-badge {
      display: inline-flex;
      height: 48px;
      border-radius: 8px;
      transition: transform 0.18s ease, opacity 0.18s ease;
    }

    .store-badge:hover,
    .store-badge:focus {
      transform: translateY(-2px);
      opacity: 0.9;
    }

    .trust-strip {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      max-width: 650px;
      gap: 12px;
      margin-top: 30px;
    }

    .trust-item {
      min-height: 88px;
      padding: 14px;
      border: 1px solid rgba(217, 228, 223, 0.9);
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.72);
    }

    .trust-item strong {
      display: block;
      font-size: 22px;
      line-height: 1.1;
    }

    .trust-item span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .hero-media {
      position: relative;
    }

    .hero-photo {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 8px;
      box-shadow: var(--shadow);
    }

    .lesson-preview {
      position: absolute;
      right: 22px;
      bottom: -28px;
      width: min(330px, calc(100% - 44px));
      padding: 18px;
      border: 1px solid rgba(217, 228, 223, 0.9);
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.94);
      box-shadow: 0 18px 45px rgba(23, 33, 31, 0.16);
    }

    .lesson-preview small {
      color: var(--teal);
      font-weight: 900;
      text-transform: uppercase;
    }

    .dialogue-line {
      margin: 10px 0 0;
      color: #33413e;
      font-weight: 700;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 34px;
    }

    .section-kicker {
      margin: 0 0 8px;
      color: var(--coral);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    h2 {
      max-width: 760px;
      margin: 0;
      font-size: clamp(30px, 4vw, 46px);
      line-height: 1.08;
      letter-spacing: 0;
    }

    .section-copy {
      max-width: 470px;
      margin: 0;
      color: var(--muted);
      font-size: 17px;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .feature-card,
    .scenario-card,
    .quote-card,
    .faq-card {
      border: 1px solid var(--line);
      border-radius: 8px;
      background: var(--panel);
      box-shadow: 0 10px 28px rgba(23, 33, 31, 0.06);
    }

    .feature-card {
      padding: 24px;
    }

    .feature-icon {
      width: 56px;
      height: 56px;
      margin-bottom: 18px;
      border-radius: 8px;
      display: grid;
      place-items: center;
      background: var(--soft);
      color: var(--teal);
    }

    .feature-icon svg {
      width: 30px;
      height: 30px;
      stroke: currentColor;
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
      fill: none;
    }

    .feature-card h3,
    .scenario-card h3,
    .quote-card h3,
    .faq-card h3 {
      margin: 0 0 8px;
      font-size: 20px;
      line-height: 1.25;
    }

    .feature-card p,
    .scenario-card p,
    .quote-card p,
    .faq-card p {
      margin: 0;
      color: var(--muted);
    }

    .scenario-band {
      background: #eef4f1;
    }

    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }

    .scenario-card {
      min-height: 238px;
      overflow: hidden;
      transition: transform 0.18s ease, box-shadow 0.18s ease;
    }

    .scenario-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 16px 36px rgba(23, 33, 31, 0.1);
    }

    .scenario-card img {
      width: 100%;
      aspect-ratio: 3 / 2;
      object-fit: cover;
    }

    .scenario-card div {
      padding: 16px;
    }

    .split {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 42px;
      align-items: center;
    }

    .app-shot {
      aspect-ratio: 4 / 3;
      width: 100%;
      object-fit: cover;
      border-radius: 8px;
      box-shadow: var(--shadow);
    }

    .step-list {
      display: grid;
      gap: 14px;
      margin-top: 26px;
    }

    .step {
      display: grid;
      grid-template-columns: 42px 1fr;
      gap: 14px;
      align-items: start;
    }

    .step-number {
      width: 42px;
      height: 42px;
      border-radius: 8px;
      display: grid;
      place-items: center;
      background: var(--teal);
      color: #fff;
      font-weight: 900;
    }

    .step strong {
      display: block;
      margin-bottom: 4px;
      font-size: 18px;
    }

    .step p {
      margin: 0;
      color: var(--muted);
    }

    .audience-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .quote-card {
      padding: 24px;
      background: linear-gradient(180deg, #fff, #fbf9f5);
    }

    .quote-card strong {
      display: inline-flex;
      margin-bottom: 12px;
      color: var(--teal-dark);
      font-size: 14px;
      text-transform: uppercase;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
    }

    .faq-card {
      padding: 22px;
    }

    .faq-cta {
      margin: 30px 0 0;
      text-align: center;
    }

    .faq-cta-link {
      display: inline-flex;
      padding: 12px 22px;
      border-radius: 8px;
      background: var(--ink);
      color: #fff;
      font-weight: 800;
      transition: transform 0.18s ease, opacity 0.18s ease;
    }

    .faq-cta-link:hover,
    .faq-cta-link:focus {
      transform: translateY(-2px);
      opacity: 0.9;
    }

    .download-band {
      background: var(--teal-dark);
      color: #fff;
    }

    .download-panel {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
    }

    .download-band h2 {
      color: #fff;
    }

    .download-band p {
      max-width: 650px;
      color: rgba(255, 255, 255, 0.78);
    }

    .footer {
      padding: 36px 0;
      background: #17211f;
      color: rgba(255, 255, 255, 0.76);
    }

    .footer-grid {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
    }

    .footer-links {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }

    .footer a:hover,
    .footer a:focus {
      color: #fff;
    }

    @media (max-width: 900px) {
      .nav {
        height: auto;
        padding: 14px 0;
        align-items: flex-start;
        flex-direction: column;
      }

      .nav-menu {
        width: 100%;
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
      }

      .nav-links {
        width: 100%;
        flex-wrap: wrap;
        gap: 10px 16px;
      }

      .hero-grid,
      .split,
      .download-panel {
        grid-template-columns: 1fr;
      }

      .hero {
        padding-top: 46px;
      }

      .section-head {
        align-items: start;
        flex-direction: column;
      }

      .feature-grid,
      .audience-grid,
      .scenario-grid,
      .faq-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 620px) {
      .section {
        padding: 62px 0;
      }

      .hero h1 {
        font-size: 42px;
      }

      .trust-strip,
      .feature-grid,
      .audience-grid,
      .scenario-grid,
      .faq-grid {
        grid-template-columns: 1fr;
      }

      .lesson-preview {
        position: static;
        width: 100%;
        margin-top: 14px;
      }

      .store-badge {
        height: 44px;
      }
    }