/* Root variables */
:root {
  --primary-color: #007BFF;
  --secondary-color: #6C757D;
  --bg-color: #F8F9FA;
  --text-color: #212529;
  --font-family: 'Roboto', sans-serif;
  --max-width: 1200px;
}

/* Global resets */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 0;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Header */
.site-header {
  background: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}
.main-nav a {
  font-weight: 500;
  transition: color 0.3s ease;
}
.main-nav a:hover {
  color: var(--primary-color);
}

/* Hero Section */
.hero {
  background: url('images/hero-bg.jpg') center/cover no-repeat;
  color: #fff;
  padding: 4rem 0;
  text-align: center;
}
.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
}
.btn-primary {
  background: var(--primary-color);
  color: #fff;
}
.btn-secondary {
  background: var(--secondary-color);
  color: #fff;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}
.services-grid article {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.services-grid img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-top: 1rem;
}

/* About Section */
.about blockquote {
  font-style: italic;
  margin: 1.5rem 0;
  border-left: 4px solid var(--primary-color);
  padding-left: 1rem;
}

/* Testimonial Section */
.testimonial {
  background: #fff;
  padding: 2rem 0;
  text-align: center;
  margin: 2rem 0;
}

/* Contact Form */
.contact-form {
  display: grid;
  gap: 1rem;
}
.contact-form label {
  font-weight: 500;
}
.contact-form input,
.contact-form textarea {
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: inherit;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* Footer */
.site-footer {
  background: #343a40;
  color: #fff;
  text-align: center;
  padding: 1.5rem 0;
}
.site-footer a {
  color: #adb5bd;
  margin: 0 0.5rem;
  transition: color 0.3s ease;
}
.site-footer a:hover {
  color: #fff;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    font-size: 1rem;
  }
  .main-nav ul {
    gap: 1rem;
  }
}