/* --- Global Styles --- */
:root {
  --primary-color: #0d6efd; /* A strong blue */
  --dark-color: #212529; /* Dark charcoal */
  --light-color: #f8f9fa; /* Off-white */
  --text-color: #333;
  --container-width: 1100px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  background-color: var(--light-color);
  color: var(--text-color);
}

a {
  color: var(--primary-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Header & Navigation --- */
.navbar {
  background-color: var(--dark-color);
  padding: 1rem 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar .logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
}

.navbar .logo:hover {
  text-decoration: none;
}

.navbar .nav-links {
  list-style: none;
  display: flex;
}

.navbar .nav-links li {
  margin-left: 20px;
}

.navbar .nav-links a {
  color: #fff;
  font-weight: 500;
  padding: 0.5rem;
  transition: color 0.3s ease;
}

.navbar .nav-links a:hover,
.navbar .nav-links a.active {
  color: var(--primary-color);
  text-decoration: none;
}

/* --- Page Header (for sub-pages) --- */
.page-header {
  background: var(--dark-color);
  color: #fff;
  padding: 2rem 0;
  text-align: center;
  margin-bottom: 2rem;
}

.page-header h1 {
  font-size: 2.5rem;
}

/* --- Hero Section (Homepage) --- */
.hero {
  background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../image/Semi.jpg') no-repeat center center/cover;
  height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
  padding: 0 20px;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.5rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 5px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: #0b5ed7;
  text-decoration: none;
}

/* --- Homepage Content --- */
.home-content {
  padding: 3rem 0;
  text-align: center;
}

.home-content h2 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.home-content .lead {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem auto;
}

/* --- Services Page --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  padding-bottom: 2rem;
}

.service-card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.service-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.service-card-content {
  padding: 1.5rem;
}

.service-card-content h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--dark-color);
}

/* --- About Page --- */
.about-content {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.about-content img {
  border-radius: 8px;
}

.about-content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

/* --- Contact Page --- */
.contact-container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  margin-bottom: 2rem;
}

.contact-form .form-group {
  margin-bottom: 1.2rem;
}

.contact-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 1rem;
}

.contact-form textarea {
  height: 150px;
  resize: vertical;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-info p {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

/* --- Footer --- */
.footer {
  background: var(--dark-color);
  color: #aaa;
  text-align: center;
  padding: 2rem 0;
  margin-top: 2rem;
}