/* Global variables and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Colour palette and reusable values */
:root {
  /* vibrant gradient used for buttons and headings */
  --primary-gradient: linear-gradient(90deg, #00c6ff 0%, #0072ff 100%);
  /* secondary gradient used on hover */
  --accent-gradient: linear-gradient(90deg, #9333ff 0%, #00aaff 100%);
  /* base background for the site */
  --background-color: #040d21;
  /* semi‑transparent background for the navigation bar */
  --nav-bg: rgba(4, 13, 33, 0.85);
  /* translucent card background */
  --card-bg: rgba(255, 255, 255, 0.05);
  /* common border radius */
  --border-radius: 10px;
  /* primary text colour */
  --text-color: #e6e6e6;
  /* colour used for interactive links */
  --link-hover: #00c6ff;
}

body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
}

/* Utility container to centre and constrain content */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Navigation bar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 999;
  background-color: var(--nav-bg);
  backdrop-filter: blur(8px);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 2rem;
}
.navbar .logo img {
  height: 42px;
}
.navbar nav {
  display: flex;
  gap: 1.5rem;
}
.navbar nav a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}
.navbar nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--primary-gradient);
  transition: width 0.3s ease;
}
.navbar nav a:hover::after,
.navbar nav a.active::after {
  width: 100%;
}
.navbar nav a:hover {
  color: var(--link-hover);
}

/* Hamburger icon */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 30px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: #ffffff;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Responsive menu behaviour */
@media (max-width: 768px) {
  .navbar nav {
    position: absolute;
    top: 60px;
    right: 0;
    background-color: var(--nav-bg);
    flex-direction: column;
    width: 200px;
    padding: 1rem;
    gap: 1rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .navbar nav.open {
    transform: translateX(0%);
  }
  .menu-toggle {
    display: flex;
  }
}

/* Hero section */
.hero {
  height: 90vh;
  background: url('images/hero-bg.png') no-repeat center/cover;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.hero.small {
  height: 55vh;
}
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.9) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 0 1rem;
  color: #ffffff;
}
.hero-content h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-content h2 {
  font-size: 2.4rem;
  margin-bottom: 1rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: #d0d0d0;
}
.cta-button {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: var(--border-radius);
  background: var(--primary-gradient);
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.3s ease;
}
.cta-button:hover {
  background: var(--accent-gradient);
}
.cta-link {
  color: var(--link-hover);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}
.cta-link:hover {
  color: #ffffff;
}

/* Sections */
section {
  padding: 5rem 0;
}

/* Home About Section */
.home-about .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.home-about .text {
  flex: 1;
}
.home-about .text h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #ffffff;
}
.home-about .text p {
  color: #b0b8c9;
  margin-bottom: 1rem;
}
.home-about .image {
  flex: 1;
  text-align: center;
}
.home-about .image img {
  max-width: 100%;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* Home Services Section */
.home-services {
  text-align: center;
}
.home-services h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: #ffffff;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}
.service-card {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  transition: transform 0.3s ease, background-color 0.3s ease;
}
.service-card:hover {
  transform: translateY(-5px);
  background-color: rgba(255, 255, 255, 0.08);
}
.service-card .icon {
  margin-bottom: 1rem;
}
.service-card .icon svg {
  width: 50px;
  height: 50px;
  fill: var(--link-hover);
  color: var(--link-hover);

  /* animate icons with a gentle float on the home page */
  animation: float 4s ease-in-out infinite alternate;
}
.service-card h3 {
  margin-bottom: 0.5rem;
  color: #ffffff;
}
.service-card p {
  color: #b0b8c9;
  font-size: 0.95rem;
}

/* Detailed services grid on services page */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}
.service-detail {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  transition: transform 0.3s ease, background-color 0.3s ease;
}
.service-detail:hover {
  transform: translateY(-5px);
  background-color: rgba(255, 255, 255, 0.08);
}
.service-detail .icon {
  margin-bottom: 1rem;
}
.service-detail .icon svg {
  width: 60px;
  height: 60px;
  fill: var(--link-hover);
  color: var(--link-hover);
}

/* Animation keyframes */
@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(40px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(-6px);
  }
}

/* Apply entrance animation only on the home page hero */
.home-hero .hero-content h1,
.home-hero .hero-content p,
.home-hero .hero-content .cta-button {
  opacity: 0;
  animation: fadeInUp 1s ease-out forwards;
}
.home-hero .hero-content p {
  animation-delay: 0.2s;
}
.home-hero .hero-content .cta-button {
  animation-delay: 0.4s;
}
.service-detail h3 {
  margin-bottom: 0.8rem;
  font-size: 1.4rem;
  color: #ffffff;
}
.service-detail p {
  color: #b0b8c9;
  font-size: 0.95rem;
}

/* Contact section */
.contact-wrapper {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.contact-details {
  flex: 1;
  min-width: 280px;
}
.contact-details h3 {
  margin-bottom: 1rem;
  font-size: 1.6rem;
  color: #ffffff;
}
.contact-details p, .contact-details a {
  color: #b0b8c9;
  margin-bottom: 0.8rem;
  text-decoration: none;
}
.contact-details a:hover {
  color: var(--link-hover);
}
.contact-form {
  flex: 1;
  min-width: 300px;
}
.contact-form form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--border-radius);
  border: none;
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  font-size: 1rem;
}
.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}
.contact-form button {
  align-self: flex-start;
  padding: 0.8rem 2rem;
  border-radius: var(--border-radius);
  background: var(--primary-gradient);
  color: #ffffff;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s ease;
}
.contact-form button:hover {
  background: var(--accent-gradient);
}

/* Footer */
footer {
  padding: 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: #6c7a9c;
  font-size: 0.9rem;
}