:root {
  --primary: #00c853; /* Vivid Green */
  --primary-dark: #007e33; /* Deep Green */
  --background: #121212; /* Dark background */
  --surface: #1e1e1e; /* Surface panels */
  --card: #212121; /* Glossy card surface */
  --text-primary: #ffffff; /* White text */
  --text-secondary: #bbbbbb; /* Light grey text */
  --accent: #00e676; /* Neon Green Accent */
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

/* 💫 RESET & BASE */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: all 0.3s ease-in-out;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Poppins", sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}
ul {
  list-style: none;
}
img {
  max-width: 100%;
}

/* 🌐 NAVBAR */
.navbar {
  position: fixed;
  width: 100%;
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: auto;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}
.nav-links li a {
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 4px;
  transition: all 0.3s ease;
}
.nav-links li a:hover,
.nav-links li a:focus {
  background-color: var(--primary-dark);
  color: var(--text-primary);
}

/* 📱 Hamburger Menu */
.hamburger {
  display: none;
  font-size: 2rem;
  cursor: pointer;
  color: var(--text-primary);
}

/* 🏠 HERO SECTION */
.hero {
  padding: 120px 20px 80px;
  text-align: center;
  background: linear-gradient(rgba(18, 18, 18, 0.9), rgba(18, 18, 18, 0.9)),
    url("../images/hero.png") no-repeat center center;
  background-size: cover;
  height: auto;
  display: grid;
  place-items: center;
}

.hero h1 {
  font-size: 2.8rem;
  color: var(--accent);
  margin-bottom: 15px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero .tagline {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

.hero .buttons {
  margin-top: 20px;
}

/* 🔘 BUTTONS */
.btn,
.btn-outline {
  display: inline-block;
  padding: 12px 24px;
  margin: 5px;
  border-radius: 6px;
  font-weight: 600;
  transition: 0.3s ease;
  cursor: pointer;
}

.btn {
  background-color: var(--primary);
  color: var(--text-primary);
  border: none;
}

.btn:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 0 10px var(--accent);
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.btn-outline:hover {
  background-color: var(--primary-dark);
  color: var(--text-primary);
  box-shadow: 0 0 10px var(--accent);
}

/* 📞 CTA SECTION */
.cta {
  background-color: var(--card);
  color: var(--text-primary);
  padding: 70px 20px;
  text-align: center;
}

.cta h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.cta p {
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.contact-details p {
  color: var(--text-secondary);
  margin: 0.5rem 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin: 1.5rem 0;
  align-items: center;
  /* width: 150px; */
}

.contact-form input,
.contact-form textarea {
  padding: 0.8rem;
  background-color: var(--surface);
  color: var(--text-primary);
  border: 1px solid #333;
  border-radius: 8px;
  width: 50%;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border: 1px solid var(--accent);
  box-shadow: 0 0 5px var(--accent);
}

.contact-form button {
  width: 50%;
  background-color: var(--primary);
  border: none;
  color: white;
  padding: 0.7rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s;
}

.contact-form button:hover {
  background-color: var(--primary-dark);
}

.social-links {
  margin-top: 1rem;
}

.social-links a {
  color: var(--primary);
  margin: 0 0.4rem;
  text-decoration: none;
}

.social-links a:hover {
  text-decoration: dashed underline;
}

/* 👣 FOOTER */
footer {
  background-color: var(--surface);
  color: var(--text-secondary);
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
}

/* 📱 RESPONSIVE DESIGN */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--surface);
    flex-direction: column;
    align-items: flex-start;
    display: none;
    padding: 20px;
    box-shadow: var(--shadow);
  }

  .nav-links.show {
    display: flex;
  }

  .nav-links li {
    width: 100%;
    margin: 10px 0;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .steps {
    flex-direction: column;
    align-items: center;
  }
  .contact-form input,
  .contact-form textarea,
  .contact-form button {
    width: 95%;
  }
}