/* # ریست اولیه استایل‌ها */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* # استایل عمومی */
body {
  font-family: 'Tahoma', sans-serif;
  background: #f5f5f5;
  color: #222;
  line-height: 1.6;
}

/* # هدر تمام‌صفحه */
.hero {
  background: url('https://source.unsplash.com/1600x900/?nature') center/cover no-repeat;
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-overlay {
  position: absolute;
  background: rgba(0, 0, 0, 0.6);
  inset: 0;
}

.hero-content {
  color: #fff;
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.btn {
  background: #00bcd4;
  color: #fff;
  padding: 0.8rem 1.5rem;
  border: none;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #008ba3;
}

/* # بخش خدمات */
.services {
  padding: 4rem 2rem;
  background: #fff;
  text-align: center;
}

.services h2 {
  margin-bottom: 2rem;
  font-size: 2rem;
}

.services-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.service-card {
  background: #e0f7fa;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

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

.service-card span {
  font-size: 2rem;
  display: block;
  margin-bottom: 1rem;
}