/* CSS Variables */
:root {
    --primary: #2563eb;
    --secondary: #1e40af;
    --accent: #3b82f6;
    --dark: #0f172a;
    --light: #f8fafc;
    --success: #22c55e;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --transition-speed: 0.3s;
  }
  
  /* Base Styles */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Inter", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  }
  
  body {
    color: var(--dark);
    background-color: var(--light);
    line-height: 1.7;
  }
  
  .container {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
  }
  
  /* Header & Navigation */
  header {
    background-color: white;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
  }
  
  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 0;
  }
  
  .logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.5px;
    z-index: 1001;
    position: relative;
  }
  
  .logo span {
    color: var(--secondary);
  }
  
  .nav-links {
    display: flex;
    list-style: none;
  }
  
  .nav-links li {
    margin-left: 2.5rem;
  }
  
  .nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color var(--transition-speed);
    position: relative;
  }
  
  .nav-links a:hover {
    color: var(--primary);
  }
  
  .nav-links a::after {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary);
    transition: width var(--transition-speed) ease;
  }
  
  .nav-links a:hover::after {
    width: 100%;
  }
  
  /* Mobile Menu Toggle */
  .menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
  }
  
  .menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--dark);
    border-radius: 3px;
    transition: all 0.3s ease;
  }
  
  /* Mobile Navigation */
  .mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right 0.4s ease;
    z-index: 1000;
  }
  
  .mobile-nav.active {
    right: 0;
  }
  
  .mobile-nav-links {
    list-style: none;
    text-align: center;
  }
  
  .mobile-nav-links li {
    margin: 2rem 0;
  }
  
  .mobile-nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-size: 1.5rem;
    font-weight: 600;
    transition: color var(--transition-speed);
  }
  
  .mobile-nav-links a:hover {
    color: var(--primary);
  }
  
  /* Hero Section */
  .hero {
    height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background-color: var(--light);
    position: relative;
    overflow: hidden;
  }
  
  .hero::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(
      circle,
      rgba(59, 130, 246, 0.07) 0%,
      rgba(59, 130, 246, 0) 70%
    );
    z-index: 0;
  }
  
  .hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
  }
  
  .hero-text {
    flex: 1;
    padding-right: 3rem;
  }
  
  .hero-text h1 {
    font-size: 3.2rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--dark);
    font-weight: 800;
    letter-spacing: -1px;
  }
  
  .hero-text p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: #475569;
    max-width: 600px;
  }
  
  .hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
  }
  
  .hero-image img {
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.4s ease;
    max-width: 100%;
    height: auto;
  }
  
  .hero-image::after {
    content: "";
    position: absolute;
    width: 80%;
    height: 80%;
    background: var(--accent);
    border-radius: 12px;
    bottom: -20px;
    right: -20px;
    z-index: -1;
    opacity: 0.1;
  }
  
  /* Buttons */
  .cta-buttons {
    display: flex;
    gap: 1.2rem;
  }
  
  .btn {
    display: inline-block;
    padding: 0.9rem 2.2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-speed);
    letter-spacing: 0.2px;
  }
  
  .btn-primary {
    background-color: var(--primary);
    color: white;
    border: 2px solid var(--primary);
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.2);
  }
  
  .btn-primary:hover {
    background-color: var(--secondary);
    border-color: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(37, 99, 235, 0.3);
  }
  
  .btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    background-color: transparent;
  }
  
  .btn-outline:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-2px);
  }
  
  /* Features Section */
  .features {
    padding: 7rem 0;
    background-color: white;
  }
  
  .section-title {
    text-align: center;
    margin-bottom: 4rem;
  }
  
  .section-title h2 {
    font-size: 2.6rem;
    color: var(--dark);
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.5px;
  }
  
  .section-title p {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 700px;
    margin: 0 auto;
  }
  
  .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
    gap: 2.5rem;
  }
  
  .feature-card {
    background-color: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.04);
    transition: transform 0.4s, box-shadow 0.4s;
    border: 1px solid var(--gray-200);
  }
  
  .feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
  }
  
  .feature-icon {
    font-size: 2.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    height: 60px;
    width: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(37, 99, 235, 0.1);
    border-radius: 12px;
  }
  
  .feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark);
    font-weight: 600;
  }
  
  .feature-card p {
    color: #64748b;
  }
  
  /* App Screenshots Section */
  .app-screenshots {
    padding: 7rem 0;
    background-color: var(--gray-100);
    position: relative;
    overflow: hidden;
  }
  
  .app-screenshots::before {
    content: "";
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(
      circle,
      rgba(37, 99, 235, 0.05) 0%,
      rgba(37, 99, 235, 0) 70%
    );
    top: -200px;
    left: -200px;
    z-index: 0;
  }
  
  .screenshots-container {
    display: flex;
    gap: 2.5rem;
    justify-content: center;
    margin-top: 4rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
  }
  
  .screenshot {
    width: 300px;
    height: 600px;
    background-color: white;
    border-radius: 25px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    display: flex;
    justify-content: center;
    align-items: center;
    color: #64748b;
    font-weight: 600;
    position: relative;
    transition: transform 0.4s ease;
    border: 1px solid var(--gray-200);
  }
  
  .screenshot:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
  }
  
  /* Download Section */
  .download {
    padding: 7rem 0;
    background-color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  
  .download::after {
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(
      circle,
      rgba(37, 99, 235, 0.05) 0%,
      rgba(37, 99, 235, 0) 70%
    );
    bottom: -250px;
    right: -250px;
    z-index: 0;
  }
  
  .store-badges {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2.5rem;
    position: relative;
    z-index: 1;
  }
  
  .badge {
    height: 55px;
    transition: transform var(--transition-speed);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  }
  
  .badge:hover {
    transform: scale(1.05);
  }
  
  /* Footer */
  footer {
    background-color: var(--dark);
    color: white;
    padding: 4rem 0 1.5rem;
  }
  
  .footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 3rem;
  }
  
  .footer-logo {
    flex: 1;
    min-width: 250px;
  }
  
  .footer-logo h3 {
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
    color: white;
    font-weight: 700;
  }
  
  .footer-logo span {
    color: var(--accent);
  }
  
  .footer-links {
    flex: 1;
    min-width: 200px;
  }
  
  .footer-links h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: white;
    position: relative;
    padding-bottom: 10px;
  }
  
  .footer-links h4::after {
    content: "";
    position: absolute;
    width: 40px;
    height: 2px;
    background-color: var(--accent);
    bottom: 0;
    left: 0;
  }
  
  .footer-links ul {
    list-style: none;
  }
  
  .footer-links li {
    margin-bottom: 0.9rem;
  }
  
  .footer-links a {
    text-decoration: none;
    color: #94a3b8;
    transition: color var(--transition-speed);
  }
  
  .footer-links a:hover {
    color: white;
  }
  
  .footer-social {
    flex: 1;
    min-width: 200px;
  }
  
  .footer-social h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: white;
    position: relative;
    padding-bottom: 10px;
  }
  
  .footer-social h4::after {
    content: "";
    position: absolute;
    width: 40px;
    height: 2px;
    background-color: var(--accent);
    bottom: 0;
    left: 0;
  }
  
  .social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1.2rem;
  }
  
  .social-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all var(--transition-speed);
  }
  
  .social-icon:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
  }
  
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
    color: #94a3b8;
  }
  
  /* Menu animation */
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
  
  /* Accessibility Improvements */
  .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  
  /* Focus styles for better accessibility */
  a:focus, button:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
  }
  
  /* Responsive Design */
  @media (max-width: 992px) {
    .hero-content {
      flex-direction: column;
      text-align: center;
    }
  
    .hero-text {
      padding-right: 0;
      margin-bottom: 3rem;
    }
  
    .hero-text p {
      margin: 0 auto 2.5rem;
    }
  
    .cta-buttons {
      justify-content: center;
    }
  
    .hero-image::after {
      right: 0;
      bottom: -10px;
      width: 90%;
      height: 90%;
    }
  }
  
  @media (max-width: 768px) {
    .nav-links {
      display: none;
    }
  
    .menu-toggle {
      display: flex;
    }
  
    .screenshot {
      width: 280px;
      height: 560px;
    }
  
    .store-badges {
      flex-direction: column;
      align-items: center;
      gap: 1.5rem;
    }
  
    .section-title h2 {
      font-size: 2.2rem;
    }
  
    .hero-text h1 {
      font-size: 2.5rem;
    }
  
    .features-grid {
      grid-template-columns: 1fr;
    }
    
    .footer-content {
      flex-direction: column;
    }
  }
  
  /* Print Styles */
  @media print {
    header, .mobile-nav, .cta-buttons, footer {
      display: none;
    }
    
    body {
      background: white;
      color: black;
    }
    
    .container {
      width: 100%;
      max-width: none;
    }
    
    .hero, .features, .app-screenshots, .download {
      padding: 1rem 0;
    }
    
    .hero-content {
      flex-direction: column;
    }
    
    .feature-card {
      box-shadow: none;
      border: 1px solid #ccc;
      break-inside: avoid;
    }
  }
  
  /* Smooth Scrolling */
  html {
    scroll-behavior: smooth;
  }