* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}
:root {
  --primary-color: #00d2ff;
  --text-color: #fff;
  --dark-bg: #0f2027;
  --medium-bg: #203a43;
  --light-bg: #2c5364;
  --gradient-bg: linear-gradient(135deg, var(--dark-bg), var(--medium-bg), var(--light-bg));
  --card-bg: rgba(255, 255, 255, 0.05);
  --border-color: rgba(255, 255, 255, 0.1);
  --light-text-opacity: 0.9;
  --dimmed-text-color: #bbbbbb; /* For better contrast on some elements */
}
body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text-color);
}
#tsparticles { /* Renamed from #particles-js to match script.js */
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: var(--gradient-bg);
}
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px; /* Increased vertical padding and horizontal */
  height: 70px;
  background-color: var(--card-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}
.nav-group {
  display: flex;
  align-items: center;
  gap: 20px; /* 🔽 reduce this value for tighter spacing */
}
nav a {
  margin-left: 20px; /* optional: reduce to 15px or even 10px */
}
html {
  scroll-behavior: smooth;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 600;
}
.header-logo {
  height: 100%;      /* keep this value to control vertical height */
  width: auto;       /* let width scale proportionally */
  max-height: 250px;  /* ensures it never stretches header */
}
nav a {
  margin-left: 30px; /* Increased spacing */
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.3s;
}
nav a:hover {
  color: var(--primary-color);
}

/* --- Hero Section --- */
.hero {
  display: flex;
  justify-content: center; /* Changed from space-between to center */
  align-items: center;
  text-align: center; /* Added to center text content within the hero section */
  padding: 80px 60px; /* Increased horizontal padding */
  z-index: 1;
  /* Removed gap: 40px; as it interferes with centering a single main item */
}
.hero-text {
  max-width: 800px; /* Adjusted max-width to a fixed value for consistent centering */
  margin: 0 auto; /* Added to center the block itself within the flex container */
}
.hero-text h1 {
  font-size: 3.2rem; /* Slightly larger */
  margin-bottom: 20px;
}
.hero-text p {
  font-size: 1.25rem; /* Slightly larger */
  margin-bottom: 30px;
  opacity: var(--light-text-opacity);
}
.cta-button {
  padding: 14px 28px; /* Slightly larger button */
  background: var(--primary-color);
  color: #000;
  font-weight: 600;
  font-size: 1.05rem; /* Slightly larger font */
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.3s, background-color 0.3s;
}
.cta-button:hover {
  transform: scale(1.05);
  background-color: #00b0e0; /* Slightly darker hover color */
}
.secondary-cta {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  margin-top: 30px;
}
.secondary-cta:hover {
  background: var(--primary-color);
  color: #000;
}
.hero-image {
  max-width: 40%;
  background: var(--card-bg);
  padding: 50px; /* Increased padding */
  border-radius: 30px;
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: center;
  align-items: center; /* Center vertically */
  min-width: 250px; /* Ensure it doesn't get too small */
}
.hero-image img {
  width: 150px; /* Increased image size */
}

/* --- Global Section Styling --- */
section {
  padding: 80px 60px; /* Consistent padding for sections */
  text-align: center;
  z-index: 1;
  position: relative; /* Ensure sections are above particles */
}
section h2 {
  font-size: 2.5rem;
  margin-bottom: 50px;
  text-align: center;
}

/* --- Services Section --- */
.services-section {
  background: rgba(255, 255, 255, 0.03); /* Subtle background for distinction */
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}
.service-item {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 30px;
  text-align: center;
  backdrop-filter: blur(5px);
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid var(--border-color);
  cursor: pointer; /* Ensure the pointer cursor is applied to the entire box */
}
.service-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 210, 255, 0.15);
}
.service-icon {
  width: 70px; /* Icon size */
  height: 70px;
  margin-bottom: 20px;
}
.service-item h3 {
  font-size: 1.6rem;
  margin-bottom: 15px;
  color: var(--primary-color);
}
.service-item p {
  font-size: 1.05rem;
  opacity: var(--light-text-opacity);
  line-height: 1.6;
}

/* --- Testimonials Section --- */
.testimonials-section {
  background: transparent; /* No specific background to let particles show through */
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}
.testimonial-item {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 30px;
  text-align: left;
  backdrop-filter: blur(5px);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between; /* Pushes client info to bottom */
}
.testimonial-item p {
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
  opacity: var(--light-text-opacity);
}
.testimonial-item .client-info {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary-color);
  text-align: right;
  margin-top: auto; /* Pushes to bottom */
}

/* --- Technologies Section --- */
.technologies-section {
    background: rgba(255, 255, 255, 0.03);
}
.tech-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-top: 40px;
    margin-bottom: 30px;
}
.tech-logos img {
    height: 60px; /* Adjust size as needed */
    filter: grayscale(100%) brightness(150%) opacity(0.7); /* Subtle effect */
    transition: filter 0.3s;
}
.tech-logos img:hover {
    filter: grayscale(0%) brightness(100%) opacity(1); /* Color on hover */
}
.technologies-section p {
    font-size: 1.1rem;
    opacity: var(--light-text-opacity);
    max-width: 800px;
    margin: 0 auto;
}


/* --- Projects Section --- */
.projects {
  padding: 80px 60px; /* Consistent padding */
  background: transparent; /* Let particles show */
  display: grid;
  grid-template-columns: 1fr 1.2fr; /* Adjusted for more detail space */
  gap: 50px; /* Increased gap */
  text-align: left; /* Align text within columns */
}
.project-list h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
  text-align: left; /* Align to left */
}
.project-list ul {
  list-style: none;
}
.project-list li {
  padding: 15px 0; /* More padding */
  font-size: 1.15rem; /* Slightly larger */
  color: var(--dimmed-text-color); /* Better contrast */
  border-bottom: 1px solid var(--border-color);
  transition: color 0.3s;
}
.project-list li:hover {
    color: var(--primary-color);
    cursor: pointer;
}
.project-detail {
  font-size: 1rem;
  line-height: 1.6;
  background: var(--card-bg);
  border-radius: 20px;
  padding: 30px; /* More padding */
  backdrop-filter: blur(5px);
  border: 1px solid var(--border-color);
  box-shadow: 0 5px 15px rgba(0, 210, 255, 0.1); /* Subtle glow */
}
.project-detail h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}
.project-detail p {
    opacity: var(--light-text-opacity);
}

/* --- Footer --- */
footer {
  text-align: center;
  padding: 30px; /* More padding */
  font-size: 0.95rem;
  opacity: 0.8; /* Increased opacity for readability */
  background-color: var(--card-bg);
  border-top: 1px solid var(--border-color);
}

/* --- Responsive Design --- */
@media (max-width: 992px) {
  header, .hero, .projects, section {
    padding: 20px 30px; /* Adjust padding for smaller screens */
  }
  .hero {
    flex-direction: column;
    text-align: center;
  }
  .hero-text, .hero-image {
    max-width: 100%;
  }
  .hero-image {
    padding: 40px;
  }
  .projects {
    grid-template-columns: 1fr; /* Stack columns */
  }
  .project-list h2, .project-detail h3 {
    text-align: center; /* Center project titles */
  }
  .service-item h3 {
    font-size: 1.4rem;
  }
  .testimonial-item p {
    font-size: 1rem;
  }
  .tech-logos img {
      height: 50px;
  }
}

@media (max-width: 768px) {
  .logo {
    font-size: 1.3rem;
  }
  nav {
    display: none; /* Consider a hamburger menu for mobile */
  }
  .hero-text h1 {
    font-size: 2.5rem;
  }
  .hero-text p {
    font-size: 1rem;
  }
  section h2 {
    font-size: 2rem;
    margin-bottom: 40px;
  }
  .services-grid, .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .tech-logos img {
      height: 40px;
  }

  /* ADDED FOR MOBILE VIEW TO PREVENT CONTENT OVERLAP WITH FIXED HEADER */
  #mainContent {
    padding-top: 70px; /* Matches your header's height */
  }
}


/* === Popup Form Styles === */
.popup-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  backdrop-filter: blur(10px);
  background-color: rgba(0, 0, 0, 0.6);
  justify-content: center;
  align-items: center;
  z-index: 999;
  animation: fadeIn 0.5s ease-in-out;
}
.popup-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 30px;
  width: 90%;
  max-width: 400px;
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.2);
  animation: slideIn 0.4s ease-out;
}
.popup-card h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #00d2ff;
}
.popup-card input,
.popup-card select,
.popup-card textarea {
  width: 100%;
  padding: 10px;
  margin-bottom: 15px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
}
.popup-card textarea {
  resize: vertical;
  min-height: 80px;
}
.close-button {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.2rem;
  float: right;
  cursor: pointer;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideIn {
  from { transform: translateY(-30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}


/* Header Get Started button */
.header-cta {
  margin-left: 30px;
}
@media (max-width: 768px) {
  .header-cta {
    display: none;
  }
  /* Ensuring hamburger is visible */
  .hamburger {
    display: block; /* */
  }
}


/* === Mobile Header === */
.hamburger {
  display: none;
  font-size: 26px;
  background: none;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  margin-left: auto;
}
.mobile-nav {
  display: none;
  flex-direction: column;
  align-items: center;
  background: var(--card-bg);
  position: absolute;
  top: 70px;
  left: 0;
  width: 100%;
  padding: 20px;
  z-index: 1001;
  border-top: 1px solid var(--border-color);
}
.mobile-nav.active {
  display: flex;
}
@media (max-width: 768px) {
  nav {
    display: none;
  }
  .hamburger {
    display: block;
  }
}


/* === Enhanced Mobile Nav === */
.mobile-nav {
  display: none;
  flex-direction: column;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  position: fixed; /* Changed from absolute to fixed */
  top: 70px;
  left: 0;
  width: 100%;
  padding: 20px;
  z-index: 1001;
  border-top: 1px solid var(--border-color);
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease-in-out;
}
.mobile-nav.active {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}
.mobile-nav a,
.mobile-nav button {
  margin: 10px 0;
  color: var(--text-color);
  text-decoration: none;
}


body.menu-open #mainContent {
  filter: blur(8px);
  transition: filter 0.3s ease;
}


/* Ensure mobile menu stays just below header even on scroll */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

/* Original mobile-nav positioning was within this block and conflicting */
/* Moved mobile-nav styles to the general .mobile-nav block above and set to fixed */


/* Contact Popup Styling */
#contactPopup {
  display: none;
  position: fixed;
  z-index: 999;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background-color: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px);
  justify-content: center;
  align-items: center;
}

#contactPopup.show {
  display: flex;
}

#contactPopup .popup-content {
  background-color: #1a1a1a;
  color: white;
  padding: 2rem;
  border-radius: 10px;
  max-width: 500px;
  text-align: left;
}

#contactPopup .popup-content .close {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 30px;
  cursor: pointer;
  color: white;
}