:root {
  --primary: #0F52BA; /* Sapphire Blue */
  --primary-dark: #0A3D8C;
  --primary-light: #3D7BE3;
  --secondary: #00B4D8; /* Teal/Cyan accent */
  --dark: #1A1A1A; /* Dark Gray almost black */
  --dark-gray: #333333;
  --gray: #666666;
  --light-gray: #F5F7FA;
  --white: #FFFFFF;
  --success: #2ECC71;
  
  --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
  --font-secondary: 'Outfit', system-ui, -apple-system, sans-serif;
  
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.12);
  --shadow-hover: 0 20px 40px rgba(15, 82, 186, 0.15);
  
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --radius: 8px;
  --radius-lg: 16px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  color: var(--dark-gray);
  line-height: 1.6;
  background-color: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1.5rem;
  color: var(--gray);
}

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

a:hover {
  color: var(--primary-dark);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Typography Utility */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-white { color: var(--white); }
.text-light { color: var(--light-gray); }

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  display: block;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
}

.section-light {
  background-color: var(--light-gray);
}

.section-dark {
  background-color: var(--dark);
  color: var(--white);
}

.section-dark h2, .section-dark h3 {
  color: var(--white);
}

.section-dark p {
  color: #CCCCCC;
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-family: var(--font-secondary);
  font-weight: 600;
  font-size: 1.125rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  text-transform: capitalize;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(15, 82, 186, 0.3);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(15, 82, 186, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-secondary:hover {
  background-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-white {
  background-color: var(--white);
  color: var(--primary);
}

.btn-white:hover {
  background-color: var(--light-gray);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

/* Header & Nav */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

header.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--primary);
}

.logo svg {
  width: 32px;
  height: 32px;
  fill: var(--primary);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--dark-gray);
  font-weight: 600;
  font-family: var(--font-secondary);
  font-size: 1rem;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--dark);
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 12rem 0 8rem;
  background: linear-gradient(135deg, var(--dark) 0%, #0a192f 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 80% 20%, rgba(0, 180, 216, 0.15) 0%, transparent 40%),
                    radial-gradient(circle at 20% 80%, rgba(15, 82, 186, 0.2) 0%, transparent 40%);
  pointer-events: none;
}

/* Decorative Aurora Effect */
.aurora {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg at 50% 50%, rgba(0, 180, 216, 0.1) 0deg, rgba(15, 82, 186, 0.1) 120deg, rgba(46, 204, 113, 0.05) 240deg, rgba(0, 180, 216, 0.1) 360deg);
  filter: blur(100px);
  animation: rotateAurora 60s linear infinite;
  opacity: 0.5;
  pointer-events: none;
}

@keyframes rotateAurora {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: 4rem;
  color: var(--white);
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero h1 span {
  background: linear-gradient(to right, var(--secondary), #4e92ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: #E2E8F0;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-btns {
  display: flex;
  gap: 1rem;
}

/* Trust Badges */
.trust-badges {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #CBD5E1;
  font-size: 0.875rem;
  font-weight: 500;
}

.trust-badge i {
  color: #F59E0B; /* Gold star */
}

/* Services Overview */
.service-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.05);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
  z-index: -1;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background-color: rgba(15, 82, 186, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background-color: var(--primary);
  color: var(--white);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--gray);
  margin-bottom: 1.5rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--primary);
}

.service-link:hover {
  gap: 0.75rem;
}

/* Why Choose Us */
.feature-list {
  margin-top: 2rem;
}

.feature-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(46, 204, 113, 0.1);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.feature-text h4 {
  margin-bottom: 0.25rem;
}

.feature-text p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

.about-img-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-img-wrapper img {
  width: 100%;
  height: auto;
  transition: transform 0.5s ease;
}

.about-img-wrapper:hover img {
  transform: scale(1.05);
}

/* Portfolio */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: none;
  border: none;
  padding: 0.5rem 1.5rem;
  font-family: var(--font-secondary);
  font-weight: 600;
  color: var(--gray);
  cursor: pointer;
  border-radius: 30px;
  transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
  background-color: var(--primary);
  color: var(--white);
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  group: portfolio;
}

.portfolio-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 61, 140, 0.9), rgba(10, 61, 140, 0.2));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-info h3 {
  color: var(--white);
  margin-bottom: 0.5rem;
  transform: translateY(20px);
  transition: transform 0.4s ease;
}

.portfolio-info p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 0;
  transform: translateY(20px);
  transition: transform 0.4s ease 0.1s;
}

.portfolio-item:hover .portfolio-info h3,
.portfolio-item:hover .portfolio-info p {
  transform: translateY(0);
}

/* Testimonials */
.testimonial-card {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
}

.quote-icon {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 3rem;
  color: rgba(15, 82, 186, 0.1);
}

.stars {
  color: #F59E0B;
  margin-bottom: 1rem;
}

.testimonial-text {
  font-size: 1.125rem;
  font-style: italic;
  margin-bottom: 1.5rem;
  color: var(--dark-gray);
}

.client-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.client-img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: var(--primary);
  font-size: 1.5rem;
}

.client-details h4 {
  margin-bottom: 0.25rem;
  font-size: 1.125rem;
}

.client-details p {
  margin-bottom: 0;
  font-size: 0.875rem;
  color: var(--gray);
}

/* FAQ Section */
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-secondary);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--dark);
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 0 1.5rem 1.5rem;
  max-height: 500px;
}

/* Contact Section */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info-card {
  background: var(--primary);
  color: var(--white);
  padding: 3rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.contact-info-card h3 {
  color: var(--white);
  margin-bottom: 2rem;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-detail i {
  font-size: 1.5rem;
  color: var(--secondary);
  margin-top: 0.25rem;
}

.contact-detail p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 0;
}

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

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

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: var(--transition);
  background-color: #F8FAFC;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.1);
}

.contact-form textarea {
  resize: vertical;
  min-height: 150px;
}

/* Footer */
footer {
  background-color: var(--dark);
  color: var(--white);
  padding: 5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  color: var(--white);
}

.footer-about p {
  color: #A0AEC0;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--primary);
  transform: translateY(-3px);
}

.footer-widget h4 {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #A0AEC0;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-light);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: #A0AEC0;
  font-size: 0.875rem;
}

/* Internal Page Headers */
.page-header {
  padding: 10rem 0 5rem;
  background: linear-gradient(135deg, var(--dark) 0%, #0a192f 100%);
  color: var(--white);
  text-align: center;
  position: relative;
}

.page-header h1 {
  font-size: 3.5rem;
  color: var(--white);
  margin-bottom: 1rem;
}

.page-header p {
  font-size: 1.25rem;
  color: #E2E8F0;
  max-width: 600px;
  margin: 0 auto;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero h1 { font-size: 3.5rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-container { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .hero { padding: 10rem 0 6rem; }
  .section { padding: 4rem 0; }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--white);
    flex-direction: column;
    justify-content: center;
    transition: 0.3s;
  }
  
  .nav-links.active {
    left: 0;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  
  .footer-grid { grid-template-columns: 1fr; }
}