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

      body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          sans-serif;
        line-height: 1.6;
        color: #1a1a1a;
        background: #fff;
      }

      .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
      }

      /* Header */
      header {
        padding: 20px 0;
        position: sticky;
        top: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        z-index: 100;
      }

      nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
      }

      .logo {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 1.8rem;
        font-weight: 700;
        color: #007aff;
        text-decoration: none;
      }

      .logo-icon {
        width: 40px;
        height: 40px;
        border-radius: 10px;
      }

      .logo-pulse {
        width: 20px;
        height: 20px;
        background: white;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
      }

      .logo-pulse::before {
        content: "⚡";
        font-size: 12px;
        color: #666;
      }

      .app-store-btn {
        display: inline-block;
        transition: all 0.3s ease;
      }

      .app-store-btn:hover {
        transform: translateY(-2px);
      }

      .app-store-badge {
        height: 40px;
        width: auto;
      }

      /* Hero Section */
      .hero {
        padding: 80px 0 60px;
        text-align: center;
        background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
      }

      .hero h1 {
        font-size: 3.5rem;
        font-weight: 800;
        margin-bottom: 24px;
        background: linear-gradient(135deg, #007aff, #34c759);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
      }

      .sanskrit {
        font-size: 1.2rem;
        color: #666;
        margin-bottom: 32px;
        font-style: italic;
      }

      .hero p {
        font-size: 1.4rem;
        color: #333;
        max-width: 600px;
        margin: 0 auto 48px;
        line-height: 1.7;
      }

      /* Hero App Icon */
      .hero-app-icon {
        width: 120px;
        height: 120px;
        margin: 0 auto 48px;
        border-radius: 26px;
        box-shadow: 0 20px 60px rgba(0, 122, 255, 0.3);
      }

      .hero-pulse-icon {
        width: 60px;
        height: 60px;
        z-index: 2;
        position: relative;
      }

            .philosophy {
        max-width: 600px;
        margin: 0 auto;
        text-align: center;
      }

      .philosophy p {
        font-size: 1.1rem;
        color: #007aff;
        margin: 0;
        font-weight: 500;
      }

      /* Screenshots Section */
      .screenshots {
        padding: 80px 0;
        background: #fff;
      }

      .screenshots-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 40px;
        margin-top: 60px;
      }

      .screenshot-card {
        text-align: center;
        background: #f8f9fa;
        border-radius: 24px;
        padding: 40px 24px;
        transition: all 0.3s ease;
      }

      .screenshot-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
      }

      .screenshot-img {
        width: 200px;
        height: auto;
        border-radius: 20px;
        margin: 0 auto 24px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        display: block;
      }

      .screenshot-card h3 {
        font-size: 1.4rem;
        font-weight: 600;
        margin-bottom: 16px;
        color: #1a1a1a;
      }

      .screenshot-card p {
        color: #666;
        line-height: 1.6;
        font-size: 0.95rem;
      }

      /* Features Detail Section */
      .features-detail {
        padding: 120px 0;
        background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
      }

      .section-title {
        text-align: center;
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 24px;
        color: #1a1a1a;
      }

      .section-subtitle {
        text-align: center;
        font-size: 1.2rem;
        color: #666;
        margin-bottom: 80px;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
      }

      .feature-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 48px;
        margin-top: 80px;
      }

      .feature-card {
        background: white;
        padding: 40px;
        border-radius: 24px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
        transition: all 0.3s ease;
      }

      .feature-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
      }

      .feature-icon {
        width: 60px;
        height: 60px;
        border-radius: 15px;
        margin-bottom: 24px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        background: linear-gradient(135deg, #007aff, #34c759);
        color: white;
      }

      .feature-card h3 {
        font-size: 1.5rem;
        font-weight: 600;
        margin-bottom: 16px;
        color: #1a1a1a;
      }

      .feature-card p {
        color: #666;
        line-height: 1.6;
      }

      .feature-highlight {
        background: rgba(0, 122, 255, 0.05);
        padding: 16px;
        border-radius: 12px;
        margin-top: 16px;
        border-left: 4px solid #007aff;
      }

      .feature-highlight p {
        color: #007aff;
        font-weight: 500;
        margin: 0;
        font-size: 0.9rem;
      }

      /* Apple Health Integration Section */
      .apple-health-section {
        padding: 80px 0;
        background: #fff;
        text-align: center;
      }

      .apple-health-content {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 60px;
        margin-top: 60px;
      }

      .apple-health-badge {
        height: 60px;
        width: auto;
      }

      .apple-health-text {
        text-align: left;
        max-width: 400px;
      }

      .apple-health-text h3 {
        font-size: 1.8rem;
        font-weight: 600;
        margin-bottom: 16px;
        color: #1a1a1a;
      }

      .apple-health-text p {
        color: #666;
        line-height: 1.6;
      }

      /* Download button updates */
      .download-btn {
        display: inline-block;
        transition: all 0.3s ease;
      }

      .download-btn:hover {
        transform: translateY(-4px);
      }

      .download-badge {
        height: 60px;
        width: auto;
      }
      .philosophy-section {
        padding: 120px 0;
        background: linear-gradient(135deg, #007aff 0%, #34c759 100%);
        color: white;
        text-align: center;
      }

      .philosophy-section h2 {
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 32px;
      }

      .philosophy-section p {
        font-size: 1.3rem;
        max-width: 800px;
        margin: 0 auto;
        line-height: 1.7;
        opacity: 0.95;
      }

      .formula {
        background: rgba(255, 255, 255, 0.2);
        padding: 24px;
        border-radius: 16px;
        margin: 48px auto;
        max-width: 400px;
        font-size: 1.4rem;
        font-weight: 600;
      }

      /* CTA Section */
      .cta {
        padding: 120px 0;
        text-align: center;
        background: #f8f9fa;
      }

      .cta h2 {
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 24px;
        color: #1a1a1a;
      }

      .cta p {
        font-size: 1.2rem;
        color: #666;
        margin-bottom: 48px;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
      }

      .download-btn {
        display: inline-block;
        transition: all 0.3s ease;
      }

      .download-btn:hover {
        transform: translateY(-4px);
      }

      /* Footer */
      footer {
        padding: 40px 0;
        text-align: center;
        color: #666;
        border-top: 1px solid #eee;
      }

      /* Responsive */
      @media (max-width: 768px) {
        nav {
          flex-wrap: wrap;
          gap: 16px;
        }

        .nav-links {
          gap: 16px;
          font-size: 0.9rem;
        }

        .logo {
          font-size: 1.5rem;
          gap: 8px;
        }

        .theme-switch {
          width: 32px;
          height: 18px;
        }

        .slider {
          border-radius: 18px;
        }

        .slider:before {
          height: 12px;
          width: 12px;
          left: 3px;
          bottom: 3px;
        }

        input:checked + .slider:before {
          transform: translateX(14px);
        }

        .icon {
          font-size: 8px;
        }

        .sun-icon {
          left: 4px;
        }

        .moon-icon {
          right: 4px;
        }

        .app-store-btn {
          display: none;
        }

        .hero h1 {
          font-size: 2.5rem;
        }

        .hero p {
          font-size: 1.2rem;
        }

        .screenshots-grid {
          grid-template-columns: 1fr;
          gap: 32px;
        }

        .feature-grid {
          grid-template-columns: 1fr;
          gap: 32px;
        }

        .section-title {
          font-size: 2rem;
        }

        .philosophy-section h2 {
          font-size: 2rem;
        }

        .screenshot-img {
          width: 160px;
        }

        .apple-health-content {
          flex-direction: column;
          gap: 32px;
          text-align: center;
        }

        .apple-health-text {
          text-align: center;
        }

        .apple-health-badge {
          height: 50px;
        }

        .download-badge {
          height: 50px;
        }

        .download-btn {
          display: inline-block;
          min-height: 44px;
          min-width: 44px;
          touch-action: manipulation;
        }

        .logo-icon {
          width: 35px;
          height: 35px;
        }

        .logo-icon svg {
          width: 20px;
          height: 20px;
        }

        .hero-app-icon {
          width: 100px;
          height: 100px;
          border-radius: 22px;
        }

        .hero-pulse-icon {
          width: 50px;
          height: 50px;
        }
      }

      @media (max-width: 480px) {
        .container {
          padding: 0 16px;
        }

        nav {
          flex-direction: column;
          align-items: stretch;
          gap: 12px;
        }

        .nav-links {
          justify-content: space-between;
          align-items: center;
        }

        .logo {
          text-align: center;
          font-size: 1.4rem;
        }

      }

      /* Animations */
      .screenshot-card {
        opacity: 0;
        animation: fadeInUp 0.6s ease forwards;
      }

      .screenshot-card:nth-child(1) {
        animation-delay: 0.1s;
      }
      .screenshot-card:nth-child(2) {
        animation-delay: 0.2s;
      }
      .screenshot-card:nth-child(3) {
        animation-delay: 0.3s;
      }
      .screenshot-card:nth-child(4) {
        animation-delay: 0.4s;
      }

      .feature-card {
        opacity: 0;
        animation: fadeInUp 0.6s ease forwards;
      }

      .feature-card:nth-child(1) {
        animation-delay: 0.1s;
      }
      .feature-card:nth-child(2) {
        animation-delay: 0.2s;
      }
      .feature-card:nth-child(3) {
        animation-delay: 0.3s;
      }
      .feature-card:nth-child(4) {
        animation-delay: 0.4s;
      }
      .feature--card:nth-child(5) {
        animation-delay: 0.5s;
      }
      .feature-card:nth-child(6) {
        animation-delay: 0.6s;
      }

      .dark-mode {
        background-color: #121212;
        color: #ffffff;
      }

      .dark-mode .logo {
        color: #ffffff;
      }

      .dark-mode header {
        background: rgba(18, 18, 18, 0.95);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      }

      .dark-mode .hero {
        background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
      }

      .dark-mode .hero h1 {
        background: linear-gradient(135deg, #007aff, #34c759);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
      }

      .dark-mode .sanskrit {
        color: #bbbbbb;
      }

      .dark-mode .hero p {
        color: #dddddd;
      }

      .dark-mode .philosophy p {
        color: #007aff;
      }

      .dark-mode .screenshots {
        background: #1a1a1a;
      }

      .dark-mode .screenshot-card {
        background: #2c2c2c;
      }

      .dark-mode .screenshot-card h3 {
        color: #ffffff;
      }

      .dark-mode .screenshot-card p {
        color: #bbbbbb;
      }

      .dark-mode .features-detail {
        background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
      }

      .dark-mode .section-title {
        color: #ffffff;
      }

      .dark-mode .section-subtitle {
        color: #bbbbbb;
      }

      .dark-mode .feature-card {
        background: #2c2c2c;
      }

      .dark-mode .feature-card h3 {
        color: #ffffff;
      }

      .dark-mode .feature-card p {
        color: #bbbbbb;
      }

      .dark-mode .feature-highlight {
        background: rgba(0, 122, 255, 0.1);
        border-left: 4px solid #007aff;
      }

      .dark-mode .feature-highlight p {
        color: #007aff;
      }

      .dark-mode .apple-health-section {
        background: #1a1a1a;
      }

      .dark-mode .apple-health-text h3 {
        color: #ffffff;
      }

      .dark-mode .apple-health-text p {
        color: #bbbbbb;
      }

      .dark-mode .philosophy-section {
        background: linear-gradient(135deg, #007aff 0%, #34c759 100%);
      }

      .dark-mode .cta {
        background: #1a1a1a;
      }

      .dark-mode .cta h2 {
        color: #ffffff;
      }

      .dark-mode .cta p {
        color: #bbbbbb;
      }

      .dark-mode footer {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        color: #bbbbbb;
      }

      .theme-switch {
        position: relative;
        display: inline-block;
        width: 38px;
        height: 22px;
      }

      .theme-switch input {
        opacity: 0;
        width: 0;
        height: 0;
      }

      .slider {
        position: absolute;
        cursor: pointer;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: #ddd;
        transition: 0.4s;
        border-radius: 22px;
        border: 1px solid rgba(0, 0, 0, 0.1);
      }

      .slider:before {
        position: absolute;
        content: "";
        height: 16px;
        width: 16px;
        left: 3px;
        bottom: 3px;
        background-color: white;
        transition: 0.4s;
        border-radius: 50%;
        z-index: 1;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
      }

      input:checked + .slider {
        background-color: #007aff;
        border-color: #007aff;
        box-shadow: 0 0 8px rgba(0, 122, 255, 0.3);
      }

      input:focus + .slider {
        box-shadow: 0 0 1px #007aff;
      }

      input:checked + .slider:before {
        transform: translateX(16px);
      }

      .dark-mode .slider {
        background-color: #007aff;
        border-color: #007aff;
        box-shadow: 0 0 8px rgba(0, 122, 255, 0.3);
      }

      .dark-mode input:checked + .slider {
        background-color: #555;
        border-color: #555;
        box-shadow: none;
      }

      .icon {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        font-size: 10px;
        transition: opacity 0.4s;
        pointer-events: none;
        z-index: 2;
      }

      .sun-icon {
        left: 5px;
        opacity: 1;
      }

      .moon-icon {
        right: 5px;
        opacity: 0;
      }

      input:checked + .slider ~ .sun-icon {
        opacity: 0;
      }

      input:checked + .slider ~ .moon-icon {
        opacity: 1;
      }

      .dark-mode .sun-icon {
        opacity: 0;
      }

      .dark-mode .moon-icon {
        opacity: 1;
      }

      .nav-links {
        display: flex;
        align-items: center;
        gap: 24px;
      }

      .nav-links a {
        text-decoration: none;
        color: #1a1a1a;
        font-weight: 500;
        transition: color 0.3s ease;
      }

      .dark-mode .nav-links a {
        color: #ffffff;
      }

      .nav-links a:hover {
        color: #007aff;
      }

      .privacy-highlight {
        font-weight: 700;
        color: #007aff;
      }

      @keyframes fadeInUp {
        from {
          opacity: 0;
          transform: translateY(30px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }