:root {
  --primary: #1A9E78;
  --primary-dark: #127A5B;
  --primary-light: #E8F5F1;
  --bg: #FAFAFC;
  --surface: #FFFFFF;
  --text: #1C1C1E;
  --text-muted: #6E6E73;
  --border: #E5E5EA;
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  background-color: rgba(250, 250, 252, 0.85);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.5px;
}

.logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  font-weight: 600;
}

main {
  flex: 1;
  width: 100%;
}

.hero-wrapper {
  position: relative;
  overflow: hidden;
  padding: 100px 20px;
  text-align: center;
  background: radial-gradient(circle at center top, var(--primary-light) 0%, var(--bg) 60%);
}

.hero-wrapper::before {
  content: "";
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: var(--primary);
  filter: blur(150px);
  opacity: 0.15;
  z-index: -1;
  border-radius: 50%;
}

.hero {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

h1 {
  font-size: 64px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
  letter-spacing: -1.5px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  -webkit-background-clip: text;
  color: transparent;
}

.hero p {
  font-size: 22px;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.5;
}

.btn-app-store {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #000000;
  color: white;
  padding: 14px 28px;
  border-radius: 14px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  gap: 12px;
  margin-top: 16px;
}

.btn-app-store:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.btn-app-store svg {
  height: 24px;
  width: 20px;
  flex-shrink: 0;
  fill: currentColor;
  margin-right: 4px;
  margin-bottom: 2px;
}

.btn-app-store span {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.section-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 20px;
}

.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 60px;
  letter-spacing: -0.5px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--surface);
  padding: 40px 32px;
  border-radius: 24px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.04);
  text-align: left;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid rgba(0,0,0,0.02);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 50px rgba(124, 77, 255, 0.08);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.feature-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--text);
  font-weight: 700;
}

.feature-card p {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 16px;
}

.how-it-works {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.step {
  display: flex;
  align-items: center;
  gap: 40px;
  background: var(--bg);
  padding: 30px 40px;
  border-radius: 24px;
}

.step-number {
  font-size: 64px;
  font-weight: 900;
  color: var(--primary-light);
  line-height: 1;
}

.step-content h3 {
  font-size: 24px;
  margin-bottom: 8px;
}

.content-box {
  background-color: var(--surface);
  padding: 50px;
  border-radius: 24px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.04);
  max-width: 900px;
  margin: 40px auto;
  border: 1px solid rgba(0,0,0,0.02);
}

.content-box h1 {
  font-size: 36px;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.content-box h2 {
  font-size: 22px;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--text);
}

footer {
  text-align: center;
  padding: 40px 20px;
  background: var(--surface);
  margin-top: auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 20px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--text);
}

@media (max-width: 768px) {
  h1 {
    font-size: 42px;
  }
  .hero p {
    font-size: 18px;
  }
  nav {
    padding: 20px;
  }
  .nav-links {
    display: none; /* Mobile menu can be added later */
  }
  .step {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }
}