/* Google Fonts: Inter */
:root {
  --primary-color: #27ae60;
  --primary-dark: #218c74;
  --secondary-color: #3498db;
  --accent-color: #2ecc71;
  --text-color: #1a2a33;
  --text-light: #f8fbfa;
  --background-light: #f8fbfa;
  --background-white: #fff;
  --shadow-color: rgba(52, 152, 219, 0.06);
  --transition-speed: 0.3s;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
}

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

body {
  font-family: 'Inter', Arial, sans-serif;
  margin: 0;
  background: var(--background-light);
  color: var(--text-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Modern Glassmorphism Effect */
.glass-effect {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--text-light);
  text-align: center;
  padding: clamp(3rem, 8vw, 5rem) 1rem clamp(2rem, 6vw, 4rem);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></svg>') repeat;
  opacity: 0.1;
  z-index: 0;
}

.logo {
  width: clamp(80px, 12vw, 100px);
  height: clamp(80px, 12vw, 100px);
  margin: 0 auto 1.5rem;
  border-radius: 25%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  position: relative;
  z-index: 1;
  transition: transform var(--transition-speed) ease;
}

.logo:hover {
  transform: scale(1.05) rotate(5deg);
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  margin: 0 0 1rem;
  font-weight: 800;
  line-height: 1.2;
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tagline {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  margin-bottom: clamp(2rem, 5vw, 3rem);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
  opacity: 0.9;
}

.cta-btn {
  display: inline-block;
  background: var(--text-light);
  color: var(--primary-color);
  font-weight: 600;
  padding: clamp(0.875rem, 2vw, 1rem) clamp(2rem, 4vw, 2.5rem);
  border-radius: 50px;
  font-size: clamp(1rem, 2vw, 1.1rem);
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(46, 204, 113, 0.2);
  transition: all var(--transition-speed) ease;
  position: relative;
  z-index: 1;
  border: 2px solid transparent;
}

.cta-btn:hover, .cta-btn:focus {
  background: var(--primary-color);
  color: var(--text-light);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(46, 204, 113, 0.3);
  border-color: var(--text-light);
}

.features {
  background: var(--background-white);
  padding: clamp(3rem, 8vw, 5rem) 1rem clamp(2rem, 6vw, 4rem);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to bottom, var(--primary-color), transparent);
  opacity: 0.1;
}

.features h2 {
  text-align: center;
  color: var(--primary-dark);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: clamp(2rem, 5vw, 3rem);
  position: relative;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(1.5rem, 3vw, 2rem);
  max-width: 1100px;
  margin: 0 auto;
}

.feature {
  background: var(--background-light);
  border-radius: 20px;
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: 0 4px 20px var(--shadow-color);
  text-align: center;
  transition: all var(--transition-speed) ease;
  position: relative;
  overflow: hidden;
}

.feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  opacity: 0;
  transition: opacity var(--transition-speed) ease;
}

.feature:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 8px 30px rgba(52, 152, 219, 0.15);
}

.feature:hover::before {
  opacity: 1;
}

.icon {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
  display: block;
  color: var(--primary-color);
  transition: transform var(--transition-speed) ease;
}

.feature:hover .icon {
  transform: scale(1.1);
}

.feature h3 {
  margin: 0 0 0.75rem;
  color: var(--primary-dark);
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 600;
}

.feature p {
  color: var(--text-color);
  font-size: clamp(0.9rem, 2vw, 1rem);
  margin: 0;
  opacity: 0.9;
}

.screenshots {
  background: linear-gradient(135deg, #eaf6f3 0%, #f0f9f6 100%);
  padding: clamp(3rem, 8vw, 5rem) 1rem clamp(2rem, 6vw, 4rem);
  text-align: center;
  position: relative;
}

.screenshots h2 {
  color: var(--primary-dark);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.screenshots-row {
  display: flex;
  justify-content: center;
  gap: clamp(1.5rem, 3vw, 2rem);
  flex-wrap: wrap;
  margin-bottom: 1rem;
  perspective: 1000px;
}

.screenshots-row img {
  width: clamp(180px, 30vw, 220px);
  height: clamp(360px, 60vw, 440px);
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 8px 30px rgba(52, 152, 219, 0.15);
  background: var(--background-white);
  transition: all var(--transition-speed) ease;
  transform-style: preserve-3d;
}

.screenshots-row img:hover {
  transform: translateY(-10px) rotateX(10deg);
  box-shadow: 0 15px 40px rgba(52, 152, 219, 0.2);
}

.screenshots-note {
  color: #888;
  font-size: 0.95rem;
}

.why-choose {
  background: var(--background-white);
  padding: clamp(3rem, 8vw, 5rem) 1rem clamp(2rem, 6vw, 4rem);
  text-align: center;
  position: relative;
}

.why-choose h2 {
  color: var(--primary-dark);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.why-choose ul {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 700px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.why-choose li {
  background: var(--background-light);
  padding: 1.25rem;
  border-radius: 15px;
  font-size: clamp(1rem, 2vw, 1.1rem);
  color: var(--text-color);
  text-align: left;
  position: relative;
  transition: transform var(--transition-speed) ease;
  box-shadow: 0 4px 15px var(--shadow-color);
}

.why-choose li:hover {
  transform: translateX(5px);
}

.why-choose li:before {
  content: '✔';
  color: var(--primary-color);
  margin-right: 0.75rem;
  font-weight: bold;
}

.download {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--text-light);
  text-align: center;
  padding: clamp(3rem, 8vw, 5rem) 1rem clamp(2rem, 6vw, 4rem);
  position: relative;
  overflow: hidden;
}

.download::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></svg>') repeat;
  opacity: 0.1;
}

.download h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: clamp(1.5rem, 4vw, 2rem);
  position: relative;
  z-index: 1;
}

.play-badge {
  display: inline-block;
  position: relative;
  z-index: 1;
  transition: transform var(--transition-speed) ease;
}

.play-badge:hover {
  transform: scale(1.05);
}

.play-badge img {
  width: clamp(160px, 25vw, 200px);
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

footer {
  background: var(--text-color);
  color: var(--text-light);
  padding: clamp(1.5rem, 4vw, 2rem) 0;
  text-align: center;
  position: relative;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  font-size: clamp(0.9rem, 2vw, 1rem);
  position: relative;
  z-index: 1;
}

.footer-content a {
  color: var(--primary-color);
  text-decoration: none;
  transition: all var(--transition-speed) ease;
  padding: 0.5rem 1rem;
  border-radius: 20px;
}

.footer-content a:hover {
  color: var(--secondary-color);
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

/* Testimonials Section */
.testimonials {
  background: var(--background-white);
  padding: clamp(3rem, 8vw, 5rem) 1rem clamp(2rem, 6vw, 4rem);
  text-align: center;
}

.testimonials h2 {
  color: var(--primary-dark);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.testimonial {
  background: var(--background-light);
  padding: 2rem;
  border-radius: 20px;
  text-align: left;
  box-shadow: 0 4px 20px var(--shadow-color);
  transition: transform var(--transition-speed) ease;
}

.testimonial:hover {
  transform: translateY(-5px);
}

.testimonial-content {
  font-style: italic;
  margin-bottom: 1.5rem;
  color: var(--text-color);
  line-height: 1.6;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.author-info h4 {
  margin: 0;
  color: var(--primary-dark);
  font-size: 1.1rem;
}

.author-info p {
  margin: 0;
  color: var(--text-color);
  opacity: 0.8;
  font-size: 0.9rem;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Print styles */
@media print {
  .hero, .download {
    background: var(--background-white) !important;
    color: var(--text-color) !important;
  }
  
  .cta-btn, .play-badge {
    display: none !important;
  }
  
  .feature:hover, .screenshots-row img:hover {
    transform: none !important;
  }
}

@media (max-width: 700px) {
  .features-grid, .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .screenshots-row {
    flex-direction: column;
    align-items: center;
  }
  
  .screenshots-row img {
    width: 85vw;
    height: 170vw;
    max-width: 300px;
    max-height: 600px;
  }
}