/* ==================== ROOT VARIABLES ==================== */
:root {
  --primary-green: #2E7D32;
  --white: #FFFFFF;
  --dark-gray: #1A1A1A;
  --light-green: #A5D6A7;
  --light-gray: #F5F5F5;
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

/* ==================== GLOBAL STYLES ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--white);
}

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

/* ==================== HEADER & NAVIGATION ==================== */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  padding: 0.5rem 2rem;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-green);
}

.logo img {
  width: 50px;
  height: 50px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

nav a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--dark-gray);
  position: relative;
  padding-bottom: 0.25rem;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-green);
  transition: width 0.3s ease;
}

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

/* ==================== HERO SECTION ==================== */
.hero {
  background: linear-gradient(135deg, var(--primary-green) 0%, #1B5E20 100%);
  color: var(--white);
  padding: 6rem 2rem;
  text-align: center;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  font-weight: 800;
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero .cta-button {
  background-color: var(--light-green);
  color: var(--primary-green);
  padding: 1rem 2.5rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.hero .cta-button:hover {
  background-color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* ==================== MAIN CONTAINER ==================== */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* ==================== SECTION STYLES ==================== */
section {
  margin: 3rem 0;
  padding: 2rem;
}

section h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--primary-green);
  text-align: center;
}

section p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

/* ==================== ABOUT SECTION ==================== */
.about-intro {
  background-color: var(--light-gray);
  border-left: 5px solid var(--primary-green);
  padding: 2rem;
  border-radius: var(--border-radius);
  margin-bottom: 2rem;
}

.about-intro p {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary-green);
  margin-bottom: 0.5rem;
}

.highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.highlight-card {
  background-color: var(--light-gray);
  padding: 2rem;
  border-radius: var(--border-radius);
  border-top: 4px solid var(--light-green);
  text-align: center;
  transition: var(--transition);
}

.highlight-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(46, 125, 50, 0.15);
}

.highlight-card h3 {
  color: var(--primary-green);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* ==================== PROJECT CARDS ==================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.project-card {
  background-color: var(--white);
  border: 1px solid #E0E0E0;
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 24px rgba(46, 125, 50, 0.2);
}

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

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

.project-card h3 {
  color: var(--primary-green);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.project-card p {
  font-size: 1rem;
  color: #555;
  margin: 0;
}

/* ==================== FORM STYLES ==================== */
.form-container {
  max-width: 600px;
  margin: 2rem auto;
  background-color: var(--light-gray);
  padding: 2rem;
  border-radius: var(--border-radius);
}

form {
  display: flex;
  flex-direction: column;
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--dark-gray);
}

input[type='text'],
input[type='email'],
input[type='tel'],
input[type='country'],
textarea,
select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #DDD;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

input[type='text']:focus,
input[type='email']:focus,
input[type='tel']:focus,
input[type='country']:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 8px rgba(46, 125, 50, 0.2);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.optional-label {
  font-size: 0.9rem;
  color: #999;
  font-weight: normal;
}

button[type='submit'] {
  background-color: var(--primary-green);
  color: var(--white);
  padding: 1rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

button[type='submit']:hover {
  background-color: #1B5E20;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(46, 125, 50, 0.3);
}

/* ==================== CONTACT SECTION ==================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.contact-card {
  background-color: var(--light-gray);
  padding: 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
}

.contact-card:hover {
  background-color: var(--light-green);
  transform: translateY(-5px);
}

.contact-card h3 {
  color: var(--primary-green);
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.contact-card p {
  margin: 0;
  word-break: break-word;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background-color: var(--primary-green);
  color: var(--white);
  border-radius: 50%;
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-links a:hover {
  background-color: #1B5E20;
  transform: scale(1.1);
}

/* ==================== FOOTER ==================== */
footer {
  background-color: var(--dark-gray);
  color: var(--white);
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
}

footer p {
  margin: 0;
  font-size: 1rem;
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 768px) {
  .header-container {
    padding: 0.5rem 1rem;
  }

  .logo {
    font-size: 1.2rem;
  }

  .logo img {
    width: 40px;
    height: 40px;
  }

  nav ul {
    gap: 1rem;
  }

  nav a {
    font-size: 0.9rem;
  }

  .hero {
    padding: 4rem 1rem;
    min-height: 400px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  section {
    padding: 1rem;
  }

  section h2 {
    font-size: 2rem;
  }

  .projects-grid,
  .highlights,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .form-container {
    padding: 1.5rem;
  }

  main {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  header {
    padding: 0.5rem 1rem;
  }

  .header-container {
    flex-wrap: wrap;
  }

  .logo {
    font-size: 1rem;
  }

  .logo img {
    width: 35px;
    height: 35px;
  }

  nav ul {
    width: 100%;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
  }

  nav a {
    font-size: 0.85rem;
    padding: 0.25rem 0.5rem;
  }

  .hero {
    padding: 3rem 1rem;
    min-height: 350px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero .cta-button {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }

  section h2 {
    font-size: 1.75rem;
  }

  section p {
    font-size: 1rem;
  }
}