* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family:
    "Segoe UI",
    system-ui,
    -apple-system,
    sans-serif;
}

:root {
  --primary-dark: #0a1929;
  --secondary-dark: #0d2438;
  --accent-blue: #1a3a5f;
  --accent-teal: #1e4d5f;
  --accent-green: #2d5f5d;
  --text-light: #e6f7ff;
  --text-muted: #a3d5ff;
  --gradient-bg: linear-gradient(
    135deg,
    var(--accent-blue),
    var(--accent-teal),
    var(--accent-green)
  );
  --gradient-text: linear-gradient(90deg, #6ab7ff, #4dccbd);
  --card-bg: rgba(15, 35, 55, 0.7);
  --border-color: rgba(106, 183, 255, 0.2);
  --transition: all 0.3s ease;
}

body {
  background-color: var(--primary-dark);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background with overlay */
.background-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}

.background-image {
  width: 100%;
  height: 100%;
  background-image: url("./meditation.jpg");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  filter: brightness(0.7);
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-bg);
  opacity: 0.85;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(10, 25, 41, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 2.2rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.logo-text {
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

nav a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  transition: var(--transition);
  padding: 0.5rem 0;
  position: relative;
}

nav a:hover {
  color: #6ab7ff;
}

nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-text);
  transition: width 0.3s ease;
}

nav a:hover::after {
  width: 100%;
}

/* Main content */
main {
  margin-top: 100px;
  padding: 0 5%;
}

section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-color);
}

section:last-of-type {
  border-bottom: none;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 3rem;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.4rem;
  color: var(--text-muted);
  max-width: 800px;
  margin-bottom: 3rem;
}

.tagline {
  font-size: 1.2rem;
  font-style: italic;
  color: #4dccbd;
  margin-bottom: 3rem;
  max-width: 700px;
}

/* Description sections */
.description-section {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.description-section.reverse {
  flex-direction: row-reverse;
}

.description-text {
  flex: 1;
}

.description-text h2 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  color: #6ab7ff;
}

.description-text p {
  font-size: 1.15rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.highlight {
  color: #4dccbd;
  font-weight: 600;
}

/* App screenshots */
.screenshot-container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 500px;
}

.screenshot-placeholder {
  width: 100%;
  aspect-ratio: 4/9;
  background-color: var(--card-bg);
  border-radius: 24px;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

.screenshot-placeholder:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 40px rgba(0, 0, 0, 0.4);
}

.screenshot-placeholder:nth-child(1) {
  background: linear-gradient(
    145deg,
    rgba(26, 58, 95, 0.9),
    rgba(30, 77, 95, 0.9)
  );
}

.screenshot-placeholder:nth-child(2) {
  background: linear-gradient(
    145deg,
    rgba(30, 77, 95, 0.9),
    rgba(45, 95, 93, 0.9)
  );
  margin-top: 2rem;
}

.screenshot-placeholder:nth-child(3) {
  background: linear-gradient(
    145deg,
    rgba(45, 95, 93, 0.9),
    rgba(26, 58, 95, 0.9)
  );
}

.screenshot-placeholder i {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.8);
}

.screenshot-label {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-light);
}

/* Features section */
.features-section {
  text-align: center;
}

.features-section h2 {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #6ab7ff;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-top: 2rem;
}

.feature-card {
  background-color: var(--card-bg);
  border-radius: 16px;
  padding: 2.5rem;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  font-size: 2.8rem;
  margin-bottom: 1.5rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #4dccbd;
}

.feature-card p {
  color: var(--text-muted);
}

/* Footer */
footer {
  background-color: rgba(10, 25, 41, 0.95);
  padding: 3rem 5%;
  text-align: center;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.contact-info {
  margin-bottom: 2rem;
}

.contact-info h3 {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
  color: #6ab7ff;
}

.email-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 1.2rem;
  transition: var(--transition);
}

.email-link:hover {
  color: #4dccbd;
  text-decoration: underline;
}

.copyright {
  color: var(--text-muted);
  font-size: 0.95rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  margin-top: 2rem;
}

/* Responsive design */
@media (max-width: 1024px) {
  .description-section {
    flex-direction: column;
    gap: 3rem;
  }

  .description-section.reverse {
    flex-direction: column;
  }

  .screenshot-grid {
    max-width: 400px;
  }

  .hero h1 {
    font-size: 2.8rem;
  }
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 1.5rem;
    padding: 1rem 5%;
  }

  nav ul {
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  main {
    margin-top: 160px;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

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

  .description-text h2 {
    font-size: 1.9rem;
  }

  .screenshot-grid {
    grid-template-columns: 1fr;
    max-width: 300px;
  }

  .screenshot-placeholder:nth-child(2) {
    margin-top: 0;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  nav ul {
    gap: 1rem;
  }

  nav a {
    font-size: 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  section {
    padding: 3rem 0;
  }

  .feature-card {
    padding: 2rem;
  }
}