*, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    :root {
      --bg-dark: #0b0d12;
      --text-white: #ffffff;
      --text-neutral-300: #d4d4d4;
      --text-neutral-400: #a3a3a3;
      --text-neutral-500: #737373;
      --text-neutral-600: #525252;
      --text-neutral-700: #404040;
      --text-neutral-800: #262626;
      --text-neutral-900: #171717;
      --text-amber-300: #fcd34d;
      --text-amber-400: #fbbf24;
      --border-white-06: rgba(255, 255, 255, 0.06);
      --border-white-10: rgba(255, 255, 255, 0.1);
      --border-amber-30: rgba(245, 158, 11, 0.3);
      --border-amber-50: rgba(245, 158, 11, 0.5);
      --bg-white-02: rgba(255, 255, 255, 0.02);
      --bg-white-04: rgba(255, 255, 255, 0.04);
      --bg-amber-10: rgba(245, 158, 11, 0.1);
      --bg-amber-20: rgba(245, 158, 11, 0.2);
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background-color: var(--bg-dark);
      color: var(--text-white);
      line-height: 1.5;
      min-height: 100vh;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    .pointer-events-none {
      pointer-events: none;
    }

    .fixed {
      position: fixed;
    }

    .inset-0 {
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
    }

    .bg-gradient {
      background: radial-gradient(ellipse at top, rgba(248, 228, 188, 0.08), transparent 58%),
                  radial-gradient(ellipse at bottom right, rgba(137, 173, 255, 0.07), transparent 62%);
    }

    /* Hero Section */
    .hero {
      position: relative;
      overflow: hidden;
      padding: 5rem 1.5rem 4rem;
    }

    @media (min-width: 640px) {
      .hero {
        padding: 7rem 1.5rem 5rem;
      }
    }

    .hero-content {
      position: relative;
      max-width: 56rem;
      margin: 0 auto;
      text-align: center;
    }

    .hero-label {
      font-size: 0.875rem;
      font-weight: 600;
      letter-spacing: 0.3em;
      text-transform: uppercase;
      color: rgba(251, 191, 36, 0.8);
    }

    .hero h1 {
      margin-top: 1rem;
      font-size: 2.25rem;
      font-weight: 700;
      letter-spacing: -0.025em;
    }

    @media (min-width: 640px) {
      .hero h1 {
        font-size: 3.75rem;
      }
    }

    .hero-subtitle {
      margin-top: 1rem;
      font-size: 1.125rem;
      color: var(--text-neutral-300);
    }

    @media (min-width: 640px) {
      .hero-subtitle {
        font-size: 1.25rem;
      }
    }

    .hero-description {
      margin-top: 1.5rem;
      margin-left: auto;
      margin-right: auto;
      max-width: 42rem;
      font-size: 0.875rem;
      line-height: 1.625;
      color: var(--text-neutral-500);
    }

    /* CTA Buttons */
    .cta-container {
      margin-top: 2.5rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 1.25rem;
    }

    .cta-buttons {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 0.75rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 0.625rem;
      padding: 0.875rem 1.5rem;
      font-size: 0.875rem;
      font-weight: 600;
      text-decoration: none;
      border-radius: 0.75rem;
      transition: all 0.2s ease;
    }

    .btn-primary {
      color: var(--text-amber-300);
      background-color: rgba(245, 158, 11, 0.1);
      border: 1px solid var(--border-amber-30);
    }

    .btn-primary:hover {
      background-color: var(--bg-amber-20);
      border-color: var(--border-amber-50);
    }

    .btn-secondary {
      color: var(--text-neutral-500);
      background-color: var(--bg-white-02);
      border: 1px solid var(--border-white-06);
    }

    .btn-secondary .badge {
      margin-left: 0.25rem;
      padding: 0.125rem 0.5rem;
      font-size: 0.625rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      background-color: rgba(255, 255, 255, 0.06);
      border-radius: 9999px;
      color: var(--text-neutral-600);
    }

    .btn svg {
      width: 1.25rem;
      height: 1.25rem;
    }

    .cta-meta {
      display: flex;
      align-items: center;
      gap: 1rem;
      font-size: 0.75rem;
      color: var(--text-neutral-600);
    }

    .cta-meta .divider {
      width: 1px;
      height: 0.75rem;
      background-color: rgba(255, 255, 255, 0.1);
    }

    .cta-meta a {
      color: var(--text-neutral-500);
      text-decoration: underline;
      text-underline-offset: 4px;
      transition: color 0.2s;
    }

    .cta-meta a:hover {
      color: var(--text-neutral-400);
    }

    /* Screenshots Section */
    .screenshots {
      position: relative;
      padding: 4rem 1.5rem;
    }

    @media (min-width: 640px) {
      .screenshots {
        padding: 5rem 1.5rem;
      }
    }

    .section-title {
      font-size: 1.125rem;
      font-weight: 600;
      color: var(--text-white);
      text-align: center;
    }

    @media (min-width: 640px) {
      .section-title {
        font-size: 1.25rem;
      }
    }

    .section-subtitle {
      font-size: 0.875rem;
      color: var(--text-neutral-500);
      text-align: center;
      margin-top: 0.5rem;
    }

    .gallery {
      position: relative;
      margin-top: 2rem;
    }

    /* Gallery Wrapper with Arrows */
    .gallery-wrapper {
      position: relative;
      display: flex;
      align-items: center;
      overflow: visible;
    }

    .gallery-btn {
      position: absolute;
      z-index: 10;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.06);
      color: white;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background 0.2s;
      backdrop-filter: blur(8px);
    }

    .gallery-btn:hover {
      background: rgba(255, 255, 255, 0.2);
    }

    .gallery-btn.prev { left: 0; }
    .gallery-btn.next { right: 0; }

    .gallery-btn svg {
      width: 20px;
      height: 20px;
    }

    @media (max-width: 768px) {
      .gallery-btn {
        display: none;
      }
    }

    /* Device Type Tabs */
    .gallery-tabs {
      display: flex;
      justify-content: center;
      gap: 0.5rem;
      margin-bottom: 1.5rem;
    }

    .gallery-tab {
      padding: 0.5rem 1.5rem;
      font-size: 0.75rem;
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--text-neutral-500);
      background: transparent;
      border: 1px solid var(--border-white-06);
      border-radius: 9999px;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .gallery-tab:hover {
      color: var(--text-neutral-300);
      border-color: var(--border-white-10);
    }

    .gallery-tab.active {
      color: var(--text-amber-400);
      border-color: var(--border-amber-30);
      background-color: rgba(245, 158, 11, 0.1);
    }

    /* Gallery Track - Horizontal Scroll */
    .gallery-track {
      display: flex;
      gap: 1rem;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
      padding: 1rem 0.5rem;
      scrollbar-width: none;
    }

    .gallery-track::-webkit-scrollbar {
      display: none;
    }

    .gallery-slide {
      flex: 0 0 260px;
      scroll-snap-align: center;
      border-radius: 1rem;
      overflow: hidden;
      border: 1px solid var(--border-white-06);
      background-color: var(--bg-white-02);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .gallery-slide:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    }

    @media (min-width: 640px) {
      .gallery-slide {
        flex: 0 0 300px;
      }
    }

    /* Tablet slides larger */
    #tablet-gallery .gallery-slide {
      flex: 0 0 400px;
    }

    @media (min-width: 640px) {
      #tablet-gallery .gallery-slide {
        flex: 0 0 500px;
      }
    }

    .gallery-slide img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* Gallery visibility */
    /* Features Section */
    .features {
      position: relative;
      padding: 4rem 1.5rem;
    }

    @media (min-width: 640px) {
      .features {
        padding: 5rem 1.5rem;
      }
    }

    .features-container {
      max-width: 64rem;
      margin: 0 auto;
    }

    .features-header {
      text-align: center;
    }

    .features-header p {
      margin-top: 0.75rem;
      font-size: 0.875rem;
      color: var(--text-neutral-500);
    }

    .features-grid {
      margin-top: 3rem;
      display: grid;
      gap: 1.5rem;
      grid-template-columns: 1fr;
    }

    @media (min-width: 640px) {
      .features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (min-width: 1024px) {
      .features-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    .feature-card {
      height: 100%;
      padding: 1.5rem;
      border-radius: 1rem;
      border: 1px solid var(--border-white-06);
      background-color: var(--bg-white-02);
      transition: all 0.2s ease;
    }

    .feature-card:hover {
      border-color: var(--border-white-10);
      background-color: var(--bg-white-04);
    }

    .feature-icon {
      display: inline-flex;
      padding: 0.625rem;
      margin-bottom: 1rem;
      border-radius: 0.5rem;
      background-color: rgba(245, 158, 11, 0.1);
      color: var(--text-amber-400);
    }

    .feature-icon svg {
      width: 1.5rem;
      height: 1.5rem;
    }

    .feature-title {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-white);
    }

    .feature-description {
      margin-top: 0.5rem;
      font-size: 0.75rem;
      line-height: 1.5;
      color: var(--text-neutral-500);
    }

    /* CTA Section */
    .cta-section {
      position: relative;
      padding: 5rem 1.5rem;
    }

    @media (min-width: 640px) {
      .cta-section {
        padding: 7rem 1.5rem;
      }
    }

    .cta-content {
      max-width: 42rem;
      margin: 0 auto;
      text-align: center;
    }

    .cta-content h2 {
      font-size: 1.5rem;
      font-weight: 700;
    }

    @media (min-width: 640px) {
      .cta-content h2 {
        font-size: 1.875rem;
      }
    }

    .cta-content p {
      margin-top: 1rem;
      font-size: 0.875rem;
      line-height: 1.625;
      color: var(--text-neutral-500);
    }

    .cta-content .cta-buttons {
      margin-top: 2rem;
    }

    /* About Section */
    .about {
      position: relative;
      padding: 4rem 1.5rem;
      border-top: 1px solid var(--border-white-06);
    }

    @media (min-width: 640px) {
      .about {
        padding: 5rem 1.5rem;
      }
    }

    .about-content {
      max-width: 48rem;
      margin: 0 auto;
      font-size: 0.875rem;
      line-height: 1.625;
      color: var(--text-neutral-500);
    }

    .about h2 {
      margin-bottom: 2rem;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-neutral-300);
    }

    .about h3 {
      margin-top: 2rem;
      margin-bottom: 0.75rem;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-neutral-400);
    }

    .about p {
      margin-bottom: 1rem;
    }

    .about strong {
      color: var(--text-neutral-400);
    }

    .about a {
      color: var(--text-neutral-400);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    /* I18n Footer */
    .i18n-footer {
      position: relative;
      padding: 2.5rem 1.5rem 3rem;
      border-top: 1px solid var(--border-white-06);
    }

    .i18n-inner {
      max-width: 48rem;
      margin: 0 auto;
      text-align: center;
    }

    .i18n-heading {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.75rem;
      flex-wrap: wrap;
    }

    .i18n-title {
      font-size: 0.75rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--text-neutral-600);
    }

    .i18n-links {
      margin-top: 1rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 0.5rem 0.9rem;
    }

    .i18n-link {
      color: var(--text-neutral-600);
      text-decoration: none;
      font-size: 0.8125rem;
      font-weight: 400;
      line-height: 1.4;
      transition: color 0.2s ease;
    }

    .i18n-link:hover {
      color: var(--text-neutral-400);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .i18n-link.active {
      color: var(--text-neutral-300);
      cursor: default;
      text-decoration: none;
    }

    .github-link {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      color: var(--text-neutral-500);
      text-decoration: none;
      font-size: 0.75rem;
      font-weight: 500;
      line-height: 1.4;
      letter-spacing: normal;
      text-transform: none;
      transition: color 0.2s ease;
    }

    .github-link:hover {
      color: var(--text-neutral-300);
    }

    .github-link svg {
      width: 1rem;
      height: 1rem;
      fill: currentColor;
      flex: none;
    }

    /* Animations */
    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: translateY(10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .hero > * {
      animation: fadeIn 0.5s ease forwards;
    }

    .hero > *:nth-child(2) {
      animation-delay: 0.1s;
    }

    .hero > *:nth-child(3) {
      animation-delay: 0.2s;
    }

    .hero > *:nth-child(4) {
      animation-delay: 0.3s;
    }