:root {
      --color-bg: #F8F9F7;
      --color-surface: #FFFFFF;
      --color-text: #1E2A28;
      --color-muted: #6B7B78;
      --color-primary: #2DB8AA;
      --color-primary-dark: #1F8E83;
      --color-accent: #F2D7B6;
      --color-border: #E6EAE7;
      --radius-card: 18px;
      --radius-button: 16px;
      --shadow-soft: 0 4px 16px rgba(0,0,0,0.05);
      --shadow-hover: 0 10px 24px rgba(0,0,0,0.08);
      --max-width: 1100px;
    }

    * { box-sizing: border-box; }
    body {
      margin: 0;
      font-family: "Manrope", system-ui, -apple-system, sans-serif;
      color: var(--color-text);
      background: radial-gradient(800px 400px at 10% -10%, #EAF4F1 0%, rgba(248,249,247,0) 60%),
                  radial-gradient(600px 300px at 90% 10%, #F7EEDC 0%, rgba(248,249,247,0) 55%),
                  var(--color-bg);
      line-height: 1.6;
    }

    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; }

    .container {
      width: min(100% - 32px, var(--max-width));
      margin: 0 auto;
    }

    header {
      padding: 24px 0 16px;
    }

    .topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-family: "Manrope", system-ui, -apple-system, sans-serif;
      font-weight: 700;
      letter-spacing: -0.2px;
    }

    .brand-mark {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--color-primary), #7AD6C7);
      display: grid;
      place-items: center;
      color: #fff;
      font-size: 18px;
    }

    .nav-links {
      display: flex;
      gap: 18px;
      font-size: 14px;
      color: var(--color-muted);
    }

    .hero {
      padding: 56px 0 72px;
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 24px;
      align-items: center;
      background: linear-gradient(135deg, #EAF4F1 0%, #F8F9F7 55%, #E9F0F8 100%);
      border-radius: 28px;
      padding-inline: 32px;
    }

    .hero-copy {
      grid-column: span 7;
    }

    .hero h1 {
      font-family: "Manrope", system-ui, -apple-system, sans-serif;
      font-size: clamp(36px, 4vw, 54px);
      line-height: 1.15;
      margin: 0 0 20px;
    }

    .hero p {
      font-size: 18px;
      color: var(--color-muted);
      margin: 0 0 24px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .cta-primary {
      background: var(--color-primary);
      color: #fff;
      padding: 14px 22px;
      border-radius: var(--radius-button);
      font-weight: 600;
      min-height: 48px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      box-shadow: var(--shadow-soft);
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

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

    .cta-secondary {
      border: 1px solid var(--color-primary);
      color: var(--color-primary-dark);
      padding: 12px 18px;
      border-radius: var(--radius-button);
      font-weight: 600;
      min-height: 48px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(45,184,170,0.08);
    }

    .hero-card {
      grid-column: span 5;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: 24px;
      padding: 24px;
      box-shadow: var(--shadow-soft);
      display: grid;
      gap: 16px;
    }

    .hero-card .qr {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .hero-visual {
      display: grid;
      gap: 16px;
    }

    .hero-phone {
      display: grid;
      place-items: center;
    }

    .hero-phone img {
      width: 100%;
      border-radius: 20px;
      aspect-ratio: 1 / 1;
      object-fit: cover;
      transform: scale(1);
      box-shadow: 0 10px 24px rgba(0,0,0,0.12);
    }

    .hero-qr {
      background: linear-gradient(140deg, #FFFFFF 0%, #F5FBFA 100%);
      border: 1px solid #E1EBE8;
      border-radius: 18px;
      padding: 16px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 12px;
      text-align: center;
    }

    .hero-qr img {
      width: 288px;
      height: 288px;
    }

    .mobile-only { display: none; }
    .desktop-only { display: block; }

    details.hero-qr-toggle summary {
      cursor: pointer;
      list-style: none;
      font-weight: 600;
      color: var(--color-primary-dark);
    }

    details.hero-qr-toggle summary::-webkit-details-marker { display: none; }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #E6F5F2;
      color: var(--color-primary-dark);
      padding: 6px 12px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
    }

    section {
      padding: 80px 0;
    }

    h2 {
      font-family: "Manrope", system-ui, -apple-system, sans-serif;
      font-size: clamp(28px, 3vw, 36px);
      line-height: 1.25;
      margin: 0 0 16px;
    }

    h3 {
      margin: 0 0 10px;
      font-size: 20px;
    }

    .muted { color: var(--color-muted); }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .card {
      background: linear-gradient(140deg, #FFFFFF 0%, #F5FBFA 100%);
      border: 1px solid #E1EBE8;
      border-radius: var(--radius-card);
      padding: 22px;
      box-shadow: 0 6px 18px rgba(0,0,0,0.04);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .card:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(0,0,0,0.07);
    }

    .step-media {
      background: #F0F4F2;
      border-radius: 20px;
      padding: 20px;
      display: grid;
      place-items: center;
      border: 1px dashed #CAD5D1;
      min-height: 240px;
      position: relative;
      overflow: hidden;
    }

    .step-media::after {
      content: "Видео/гиф 10–15 сек";
      position: absolute;
      bottom: 16px;
      right: 16px;
      background: rgba(255,255,255,0.8);
      padding: 6px 10px;
      border-radius: 999px;
      font-size: 12px;
      color: var(--color-muted);
    }

    .use-cases {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 16px;
    }

    .case-tile {
      background: linear-gradient(140deg, #FFFFFF 0%, #F5FBFA 100%);
      border: 1px solid #E1EBE8;
      border-radius: 20px;
      padding: 18px;
      display: grid;
      gap: 12px;
      min-height: 150px;
      box-shadow: 0 6px 18px rgba(0,0,0,0.04);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .case-tile:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(0,0,0,0.07);
    }

    .case-icon {
      width: 40px;
      height: 40px;
      border-radius: 14px;
      background: #E6F5F2;
      display: grid;
      place-items: center;
      font-size: 22px;
    }

    .case-tile strong {
      font-size: 16px;
    }

    .case-tile .muted {
      font-size: 14px;
    }

    .features {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .feature-item {
      display: flex;
      gap: 12px;
      align-items: flex-start;
    }

    .feature-icon {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      background: #E6F5F2;
      display: grid;
      place-items: center;
      color: var(--color-primary-dark);
      font-weight: 700;
    }

    .screens {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .screen-card {
      background: linear-gradient(140deg, #FFFFFF 0%, #F5FBFA 100%);
      border-radius: 22px;
      border: 1px solid #E1EBE8;
      padding: 18px;
      display: grid;
      gap: 14px;
      box-shadow: 0 6px 18px rgba(0,0,0,0.04);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .screen-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(0,0,0,0.07);
    }

    .phone-frame {
      background: #111;
      border-radius: 28px;
      padding: 10px;
      aspect-ratio: 9 / 16;
      display: grid;
      place-items: center;
      color: #fff;
      font-size: 14px;
    }

    .screen-image {
      width: 100%;
      border-radius: 20px;
      aspect-ratio: 9 / 16;
      object-fit: cover;
      background: #111;
    }

    .faq {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
    }

    .faq-item {
      border: 1px solid #E1EBE8;
      border-radius: 18px;
      padding: 18px;
      background: linear-gradient(140deg, #FFFFFF 0%, #F5FBFA 100%);
      box-shadow: 0 6px 18px rgba(0,0,0,0.04);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .faq-item:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(0,0,0,0.07);
    }

    .feedback {
      background: linear-gradient(135deg, #E6F5F2, #D8E7F4);
      border-radius: 28px;
      padding: 32px;
      border: 1px solid var(--color-border);
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .feedback form {
      display: grid;
      gap: 12px;
    }

    input, textarea, select {
      width: 100%;
      border-radius: 14px;
      border: 1px solid var(--color-border);
      padding: 12px 14px;
      font-size: 15px;
      font-family: inherit;
      background: #fff;
    }

    footer {
      padding: 48px 0 80px;
      border-top: 1px solid var(--color-border);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      font-size: 14px;
      color: var(--color-muted);
    }

    .footer-store {
      margin-top: 16px;
      display: inline-flex;
      align-items: center;
      gap: 0;
      padding: 0;
      border-radius: 0;
      background: transparent;
      border: none;
      box-shadow: none;
    }

    .footer-store img {
      height: 24px;
      width: auto;
      display: block;
    }

    .sticky-cta {
      position: fixed;
      bottom: 16px;
      left: 16px;
      right: 16px;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: 16px;
      padding: 12px;
      display: none;
      gap: 12px;
      align-items: center;
      box-shadow: var(--shadow-soft);
      z-index: 10;
    }

    .sticky-cta .cta-primary { width: 100%; justify-content: center; }

    .reveal {
      animation: fade-up 0.6s ease forwards;
      opacity: 0;
      transform: translateY(12px);
    }

    @keyframes fade-up {
      to { opacity: 1; transform: translateY(0); }
    }

    @media (max-width: 980px) {
      .hero { grid-template-columns: 1fr; }
      .hero-copy, .hero-card { grid-column: span 1; }
      .grid-3, .features, .screens { grid-template-columns: 1fr; }
      .use-cases { grid-template-columns: repeat(2, 1fr); }
      .faq { grid-template-columns: 1fr; }
      .feedback { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 640px) {
      .nav-links { display: none; }
      .sticky-cta { display: flex; }
      section { padding: 64px 0; }
      .use-cases { grid-template-columns: 1fr; }
      .desktop-only { display: none; }
      .mobile-only { display: block; }
    }