html {
  scroll-behavior: smooth;
}

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

body {
  font-family: Arial, Helvetica, sans-serif;
  overflow-x: hidden; /* اسکرول افقی نابود 😎 */
}

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: #f9fafb;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.hero-image img {
  max-width: 100%;
  width: 450px;
  height: auto;
}

.hero-text h1 {
  font-size: 48px;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-text p {
  font-size: 18px;
  color: #555;
  margin-bottom: 30px;
}

@media (max-width: 768px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .hero-image img {
    width: 100%;
    max-width: 320px;
  }
}

.reveal {
  opacity: 0;
  transform: translateY(60px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.header {
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header .container {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.logo {
  justify-self: start;
}

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-primary {
  background: #4f46e5;
  color: #fff;
}

.btn-primary:hover {
  background: #4338ca;
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(79, 70, 229, 0.35);
}

.btn-secondary {
  background: #111;
  color: #fff;
}

.btn-secondary:hover {
  background: #000;
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.35);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: #fff;
  padding: 2rem;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card img {
  width: 40px;
  margin-bottom: 1rem;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

@media (max-width: 768px) {
     .features-grid {
    grid-template-columns: 1fr;
  }
  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .hero-image img {
    max-width: 100%;
    margin-top: 2rem;
  }

  .nav {
    gap: 1rem;
  }
}

.nav {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-self: center;
}

.nav a {
  text-decoration: none;
  color: #222;
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
  transition: color 0.3s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: #4f46e5;
  transition: width 0.3s ease;
}

.nav a:hover {
  color: #4f46e5;
}

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

.footer {
  padding: 2rem 0;
  text-align: center;
  color: #666;
  font-size: 0.9rem;
}