@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

    :root {
      --el-color: #008CFF;
      --bg-color-light: #fff;
      --fore-color-light: #000;
      --gray-bg-color-light: #ededed;
      --gray-hover-color-light: #eaeaea;
      --shadow-color-light: #bbbbbb;
      --bg-color-dark: #111;
      --fore-color-dark: #fff;
      --gray-bg-color-dark: #191919;
      --gray-hover-color-dark: #1f1f1f;
      --shadow-color-dark: #333333;
    }
    [data-theme="light"] {
      --bg-color: var(--bg-color-light);
      --fore-color: var(--fore-color-light);
      --gray-bg-color: var(--gray-bg-color-light);
      --gray-hover-color: var(--gray-hover-color-light);
      --shadow-color: var(--shadow-color-light);
    }

    [data-theme="dark"] {
      --bg-color: var(--bg-color-dark);
      --fore-color: var(--fore-color-dark);
      --gray-bg-color: var(--gray-bg-color-dark);
      --gray-hover-color: var(--gray-hover-color-dark);
      --shadow-color: var(--shadow-color-dark);
    }

    *, *::before, *::after {
      box-sizing: border-box;
    }

    *::selection {
      background: #0088cc33;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      padding: 0;
      font-family: 'Inter', sans-serif;
      background-color: var(--bg-color);
      color: var(--fore-color);
      -webkit-font-smoothing: antialiased;
      line-height: 1;
    }

    .container {
      width: 100%;
      margin: 0 auto;
      padding: 0 0;
    }

    header {
      position: fixed;
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20%;
      border-bottom: 1px solid var(--gray-bg-color);
      background-color: #111111db;
      z-index: 60;
      backdrop-filter: saturate(180%) blur(20px);
    }

    .logo {
      display: flex;
      align-items: center;
      font-size: 24px;
      font-weight: 700;
      color: var(--fore-color);
    }

    .logo img {
      width: 48px;
      height: 48px;
      margin-right: 10px;
      transition: transform 0.3s ease;
    }

    .logo:hover img {
      transform: rotate(15deg);
    }

    .nav-center {
      flex: 1;
      display: flex;
      justify-content: center;
    }

    .nav-buttons {
      display: flex;
      gap: 20px;
    }

    .nav-button {
      padding: 10px 20px;
      border-radius: 12px;
      font-size: 20px;
      font-weight: 600;
      background-color: transparent;
      color: var(--fore-color);
      border: none;
      cursor: pointer;
      transition: background-color 0.3s ease;
    }

    .nav-button:hover {
      background-color: var(--gray-hover-color);
    }

    .nav-button.active {
      background-color: var(--fore-color);
      color: var(--bg-color);
    }

    .nav-button a {
      color: inherit;
      text-decoration: inherit;
    }

    .lang {
      display: flex;
      align-items: center;
      padding: 10px 20px;
      border: none;
      background-color: transparent;
      cursor: pointer;
      color: var(--fore-color);
      border-radius: 12px;
      transition: background-color 0.3s ease;
    }

    .lang span {
      font-size: 16px;
      font-weight: 600;
    }

    .lang:hover {
      background-color: var(--gray-hover-color);
    }

    .hero {
      text-align: center;
      padding: 220px 0 50px;
      line-height: 1.2;
      background: linear-gradient(rgba(10, 10, 10, 0.85), rgba(10, 10, 10, 0.95)), url(https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1740&q=80) center / cover no-repeat;
    }

    .hero h1 {
      font-size: 80px;
      font-weight: 700;
      letter-spacing: -5px;
      margin: 0 0 20px;
    }

    .hero h2 {
      font-size: 160px;
      font-weight: 700;
      letter-spacing: -8px;
      margin: 0 0 30px;
      background: linear-gradient(90deg, #3c7fff 0%, #00e9a7 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero p {
      font-size: 24px;
      font-weight: 400;
      letter-spacing: -0.6px;
      max-width: 700px;
      margin: 0 auto 50px;
   }

    .btn-wallet {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(90deg, #BDF5FF 0%, #C0C9FF 100%);
      color: #000;
      font-size: 36px;
      font-weight: 700;
      letter-spacing: -1.8px;
      padding: 20px 40px;
      border-radius: 80px;
      text-decoration: none;
      margin-bottom: 160px;
      transition: 0.3s;
      user-select: none;
    }

    .btn-wallet svg {
      margin-right: 15px;
    }

    .btn-wallet:hover {
      transform: translateY(-3px);
    }

    .section {
      width: 100%;
      max-width: 100%;
      margin: 0;
      padding: 0;
      background-color: var(--gray-bg-color);
      border-radius: 16px;
      margin-bottom: 100px;
    }

    .section-content {
      max-width: 1600px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .section-image {
      display: flex;
      justify-content: center;
    }

    .install-text {
      font-size: 42px;
      font-weight: 600;
      margin-top: 0;
      text-align: left;
      max-width: 800px;
      box-sizing: border-box;
      line-height: 1.5;
      margin-bottom: 0;
    }


    .install-image {
      width: 100%;
      max-width: 1200px;
      margin: 0 0;
      display: block;
      border-radius: 24px;
      /* margin-bottom: 64px; */
    }

    .install-buttons svg {
      width: 28px;
      height: 28px;
      color: var(--bg-color);
    }

    .lang-select {
      position: relative;
      background-color: var(--bg-color);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 2px 8px 0 var(--shadow-color);
    }

    .lang-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      width: 100%;
    }

    .lang-container {
      position: absolute;
      width: max-content;
      height: max-content;
      box-sizing: border-box;
      pointer-events: auto;
      z-index: 1000;
      transition: opacity 0.3s ease, height 0.3s ease, padding 0s ease 0.3s, margin 0s ease 0.3s;
    }

    .lang-container.hide {
      opacity: 0;
      height: 0;
      padding: 0;
      margin: 0;
      overflow: hidden;
      pointer-events: none;
      transition: opacity 0.3s ease, height 0.3s ease, padding 0s ease 0.3s, margin 0s ease 0.3s;
    }

    .lang-option {
      width: 100%;
    }

    .lang-select button {
      cursor: pointer;
    }

    .lang-option button {
      display: block;
      width: 100%;
      font-size: 18px;
      font-weight: 500;
      border: none;
      background: transparent;
      border-radius: 10px;
      color: var(--fore-color);
      transition: color 0.3s ease;
    }

    .lang-option button:hover {
      color: var(--el-color);
    }

    .lang-option a {
      color: inherit;
      text-decoration: inherit;
    }



    .lang-gap {
      position: absolute;
      left: 0;
      width: 0;
      height: 0;
      pointer-events: none;
      z-index: 999;
    }

    .download-bottom {
      display: inline-flex;
      align-items: center;
      background-color: var(--fore-color);
      color: var(--bg-color);
      font-size: 28px;
      font-weight: 600;
      letter-spacing: -0.6px;
      padding: 15px 30px;
      border-radius: 64px;
      text-decoration: none;
      margin-top: 16px;
      justify-content: center;
    }

    .download-bottom svg {
      margin-right: 12px;
    }

    .download-wrapper {
      max-width: 1200px;
      margin: 0 auto;
      padding: 64px 0px;
      box-sizing: border-box;
      display: flex;
      
      justify-content: space-between;
      align-items: flex-end;
    }

    .features {
      padding: 50px 100px 100px;
    }

    .features-title {
      font-size: 48px;
      font-weight: 600;
      letter-spacing: -1px;
      text-align: left;
      margin: 0 auto 50px;
      max-width: 1200px;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .feature-card {
      background-color: var(--gray-bg-color);
      border-radius: 24px;
      padding: 30px;
      text-align: left;
      border: 1px solid var(--gray-hover-color);
      transition: all 0.4s ease;
      overflow: hidden;
    }

    .feature-card svg {
      transition: transform 0.3s ease;
    }
    
    .feature-card:hover svg {
      transform: scale(0.9);
    }

    .feature-card:hover {
      background-color: var(--gray-hover-color);
      transform: translateY(-15px);
      border: 1px solid var(--el-color);
    }

    .feature-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, #00e34e, #00b8e6);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.4s ease;
    }
    
    .feature-card:hover::before {
      transform: scaleX(1);
    }

    .feature-icon {
      width: 64px;
      height: 64px;
      margin-bottom: 20px;
    }

    .feature-title {
      font-size: 28px;
      font-weight: 600;
      letter-spacing: -0.6px;
      margin: 0 0 15px;
    }

    .feature-text {
      font-size: 20px;
      font-weight: 500;
      letter-spacing: -0.4px;
      margin: 0;
    }

    @media (max-width: 768px) {
      header {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.2rem;
      }
      .install-text {
        font-size: 24px;
        padding-left: 0;
      }

      .install-image {
        max-width: 100%;
      }

      .download-wrapper {
        justify-content: center;
        padding-right: 0;
      }

      .download-bottom {
        width: 80%;
        justify-content: center;
      }
      header {
        padding: 18px 3%;
      }
    }