/* --- CSS Variables & Global Styles --- */
:root {
  --primary-color: #0f4ea8;
  --primary-color-dark: #0c3d86;
  --primary-color-light: #e7f0ff;
  --secondary-color: #f8f9fa;
  --text-dark: #1a202c;
  --text-medium: #4a5568;
  --text-light: #718096;
  --background-color: #ffffff;
  --border-color: #e2e8f0;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --border-radius: 8px;
  --font-family: 'Inter', sans-serif;
  --header-height: 70px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-family);
  color: var(--text-medium);
  background-color: var(--background-color);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--text-dark);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); text-align: center; }
h3 { font-size: 1.25rem; }

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease-in-out;
}
a:hover { color: var(--primary-color-dark); }
ul { list-style: none; }
section { padding: 4rem 1.5rem; }

.container {
  max-width: 1140px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  margin-bottom: 1rem;
}
.section-subtitle {
  max-width: 600px;
  margin: 0 auto 3rem auto;
  text-align: center;
  color: var(--text-light);
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: box-shadow 0.2s ease-in-out;
}
.site-header.scrolled {
  box-shadow: var(--card-shadow);
}

.nav {
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-dark);
}
.brand:hover { color: var(--primary-color); text-decoration: none; }

.nav-toggle {
  display: block;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  color: var(--text-dark);
}

.nav-links {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(75vw, 300px);
  height: 100vh;
  background-color: var(--background-color);
  flex-direction: column;
  padding-top: 6rem;
  align-items: center;
  box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
  transition: right 0.35s ease-in-out;
  display: flex;
  gap: 1.5rem;
}
.nav-links.active { right: 0; }
.nav-links a {
  font-size: 1.1rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  color: var(--text-dark);
  position: relative;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary-color);
  text-decoration: none;
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background-color: var(--primary-color);
}

/* --- Hero Section --- */
.hero {
  padding-block: 2rem; /* Reduced padding for better centering */
  background-color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;

  /* --- FIX FOR FULL HEIGHT --- */
  /* This makes the section at least the height of the screen minus the header */
  min-height: calc(100vh - var(--header-height));
  /* These two lines perfectly center the content vertically and horizontally */
  display: grid;
  place-content: center;
}

.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.hero-image {
    order: -1; /* This moves the image to the first position (the left) */
  }



/* =================================
   DROPDOWN MENU STYLES (CLICK-BASED)
   ================================= */

/* Style for the dropdown container (the li element) */
.dropdown {
  position: relative;
}

/* Style for the dropdown toggle link */
.dropdown-toggle .fa-chevron-down {
  font-size: 0.75em;
  margin-left: 0.3rem;
  transition: transform 0.3s ease;
}

/* The dropdown menu itself (hidden by default) */
.dropdown-menu {
  position: absolute;
  top: 150%; /* Start position for animation */
  left: 50%;
  transform: translateX(-50%);
  background-color: #fff;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  padding: 0.5rem 0;
  list-style: none;
  width: max-content;
  max-width: 280px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none; /* Can't be interacted with when hidden */
  transition: opacity 0.3s ease, top 0.3s ease;
}

/* Links inside the dropdown */
.dropdown-menu li a {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--text-color);
  font-size: 0.9rem;
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.dropdown-menu li a:hover {
  background-color: var(--light-blue);
  color: var(--primary-color);
}

/* --- CLICK-BASED VISIBILITY --- */
/* Show the dropdown when it has the .active class */
.dropdown-menu.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  top: 120%; /* Animate into place */
}

/* Rotate the arrow icon when the toggle has the .active class */
.dropdown-toggle.active .fa-chevron-down {
  transform: rotate(180deg);
}

/* ... rest of your styles, including media queries ... */
@media (max-width: 768px) {
  /* ... existing mobile styles ... */
  
  .dropdown-menu {
    position: static;
    box-shadow: none;
    background-color: transparent;
    border-radius: 0;
    width: 100%;
    max-width: none;
    padding: 0.5rem 0 0.5rem 1rem;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: none; /* Still controlled by JS for mobile toggle */
    transition: none;
  }

  .dropdown-menu.active {
      display: block;
  }

  .dropdown-menu li a {
      padding: 0.75rem 0;
      color: #fff;
  }
}

/* --- Button Styles --- */
.btn {
  display: inline-block;
  padding: 0.8rem 1.75rem;
  border-radius: var(--border-radius);
  background-color: var(--primary-color);
  color: #fff;
  font-weight: 500;
  text-align: center;
  border: 2px solid var(--primary-color);
  transition: all 0.2s ease-in-out;
  margin-top: 2.5rem;
}
.btn:hover {
  background-color: var(--primary-color-dark);
  border-color: var(--primary-color-dark);
  color: #fff;
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}
.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
}
.btn-outline:hover {
  background-color: var(--primary-color);
  color: #fff;
}

/* --- Services Section --- */
#services {
  background-color: var(--secondary-color);
}
.services-grid {
  display: grid;
  gap: 1.5rem;
}
.service {
  background: var(--background-color);
  padding: 2.5rem 2rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  text-align: center;
  transition: all 0.3s ease-in-out;
}
.service:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-shadow-hover);
}
.service-icon {
  margin: 0 auto 1.5rem;
  background-color: var(--primary-color-light);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
}
.service-icon svg { width: 32px; height: 32px; }
.service h3 { margin-bottom: 0.75rem; }

/* --- About Section --- */
.about-grid {
    display: grid;
    gap: 3rem;
    align-items: center;
}
.about-content h3 {
    margin-bottom: 1rem;
}
.about-content ul {
    list-style-type: '✓';
    padding-left: 1.5rem;
}
.about-content ul li {
    padding-left: 0.75rem;
    margin-bottom: 0.5rem;
}
.about-image {
    display: flex;
    justify-content: center;
}
.about-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
}

/* --- Clients Section --- */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  align-items: center;
}
.client-logo {
  background: #fff;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;  
  opacity: 0.7;
  transition: all 0.3s ease;
}
.client-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
    background: var(--primary-color-light);
}
.client-logo span {
    font-weight: 600;
    color: var(--text-light);
}

.clients-scroll-wrapper {
  overflow: hidden;
  position: relative;
  width: 100%;
}

.clients-grid {
  display: flex;
  gap: 1rem;
  align-items: center;
  /* Enable horizontal scrolling */
  flex-wrap: nowrap;
  min-width: 100%;
  animation: scroll-clients 18s linear infinite;
}

@keyframes scroll-clients {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* --- Contact Section --- */
#contact {
  background-color: var(--secondary-color);
}
.contact-grid {
  display: grid;
  gap: 3rem;
}
.contact-form label { display: block; margin-bottom: 1.5rem; }
.contact-form span { display: block; margin-bottom: 0.5rem; font-weight: 500; }
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: all 0.2s ease;
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(15, 78, 168, 0.2);
}
.form-actions { display: flex; gap: 1rem; }
.form-status { margin-top: 1rem; font-weight: 500; padding: 0.75rem; border-radius: var(--border-radius); }
.form-status.success { background-color: #d1fae5; color: #065f46; }
.form-status.error { background-color: #fee2e2; color: #991b1b; }
.contact-info {
    background: #fff;
    padding: 2rem;
    border-radius: var(--border-radius);
}
.contact-info p { margin-bottom: 1rem; }

/* --- Footer --- */
.site-footer {
  background-color: var(--text-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 1.5rem 2rem;
}
.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 3rem;
  text-align: center;
}
.footer-grid h4 {
    color: #fff;
    font-weight: 600;
    margin-bottom: 1rem;
}
.footer-grid a {
    color: rgba(255, 255, 255, 0.7);
    display: block;
    margin-bottom: 0.5rem;
}
.footer-grid a:hover {
    color: #fff;
}
.footer-bottom {
    border-top: 1px solid #4a5568;
    padding-top: 2rem;
    text-align: center;
    font-size: 0.9rem;
}


/* --- Media Queries (Desktop) --- */
@media (min-width: 768px) {
  section { padding: 5rem 1.5rem; }

  .nav-toggle { display: none; }
  .nav-links {
    position: static;
    height: auto;
    width: auto;
    flex-direction: row;
    background: none;
    box-shadow: none;
    padding-top: 0;
    transition: none;
    display: flex;
    gap: 0.5rem;
  }
  .nav-links a.active::after { bottom: 0.5rem; }

  .hero { text-align: left; }
  .hero-grid { grid-template-columns: 1fr 1fr; }
  .hero-cta { justify-content: flex-start; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr 1fr; }
  .clients-grid { grid-template-columns: repeat(4, 1fr); }
  .contact-grid { grid-template-columns: 2fr 1fr; }
  
  .footer-grid {
      grid-template-columns: repeat(4, 1fr);
      text-align: left;
  }
}

@media (min-width: 1024px) {
    .services-grid { grid-template-columns: repeat(3, 1fr); }
}


/* --- Media Queries (Mobile) --- */
@media (max-width: 767px) {
  .hero-image { display: none; }
}
@media (max-width: 480px) {
  h2 { font-size: 1.5rem; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 400px) {
  .btn {
      padding: 0.7rem 1.5rem;
      font-size: 0.9rem;
  }
}
/* --- End of styles.css --- */