* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

:root {
  --primary-dark: #1a1a40;
  --primary-medium: #3c2a6d;
  --primary-light: #3183b3;
  --accent: #6b86ff;
  --text-light: #ffffff;
  --text-gray: #f1f1f1;
}

body {
  background: linear-gradient(
    135deg,
    var(--primary-dark),
    var(--primary-medium)
  );
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* Header & Navigation */
header {
  padding: 20px 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  background: rgba(26, 26, 64, 0.9);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

header.scrolled {
  padding: 15px 0;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

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

.logo {
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(to right, #002fff, #941bda);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
}

.logo i {
  margin-right: 10px;
  font-size: 32px;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 30px;
}

.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--accent);
}

.download-btn {
  background: linear-gradient(to right, #002fff, #941bda);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 30px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
}

/* Hero Section */
.hero {
  padding: 150px 0 100px;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  background: linear-gradient(to right, #3e41eb, #da1b60);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 40px;
  color: var(--text-gray);
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 50px;
}

.app-store-btn,
.google-play-btn {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 12px 25px;
  border-radius: 10px;
  color: white;
  text-decoration: none;
  transition: transform 0.3s, background 0.3s;
}

.app-store-btn:hover,
.google-play-btn:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.2);
}

.app-store-btn i,
.google-play-btn i {
  font-size: 24px;
  margin-right: 10px;
}

.hero-image {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  perspective: 1000px;
}

.phone-mockup {
  width: 250px;
  height: 500px;
  background: #222;
  border-radius: 40px;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
  border: 4px solid #444;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  transition: transform 0.5s;
}

.phone-mockup:hover {
  transform: rotate3d(0.5, 1, 0, 10deg);
}

.phone-screen {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 36px;
}

.screenshots {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 50px;
  flex-wrap: wrap;
}

.screenshot {
  width: 200px;
  height: 400px;
  background: #333;
  border-radius: 30px;
  overflow: hidden;
  transform: rotateY(20deg);
  transition: transform 0.5s;
  border: 3px solid #555;
}

.screenshot:hover {
  transform: rotateY(0) scale(1.05);
}

.screenshot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Features Section */
.features {
  padding: 100px 0;
  background: rgba(0, 0, 0, 0.2);
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 60px;
  background: linear-gradient(to right, #3e41eb, #da1b60);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.feature-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-10px);
}

.feature-icon {
  font-size: 40px;
  margin-bottom: 20px;
  color: var(--accent);
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

/* CTA Section */
.cta {
  padding: 100px 0;
  text-align: center;
}

.cta h2 {
  font-size: 2.5rem;
  margin-bottom: 30px;
}

/* Footer */
footer {
  background: rgba(0, 0, 0, 0.3);
  padding: 40px 0;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  background: linear-gradient(to right, #3e41eb, #da1b60);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.contact-info {
  margin-bottom: 20px;
}

.copyright {
  color: var(--text-gray);
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

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

  .hero p {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .screenshots {
    flex-direction: column;
    align-items: center;
  }

  .phone-mockup {
    width: 200px;
    height: 400px;
  }
}