/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --white: #FFFFFF;
  --charcoal: #1A1A1A;
  --yellow: #F5C400;
  --tech-blue: #1F6AE1;
  --gray-100: #F5F5F5;
  --gray-200: #E5E5E5;
  --gray-500: #666666;
  --gray-600: #4A4A4A;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--charcoal);
  background-color: var(--white);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo-xeion {
  color: var(--yellow);
}

.logo-barathib {
  color: var(--charcoal);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--charcoal);
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--tech-blue);
}

.nav-link svg {
  width: 12px;
  height: 12px;
  transition: transform 0.2s ease;
}

.nav-item:hover .nav-link svg {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  min-width: 260px;
  padding: 12px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  z-index: 1001;
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 12px 20px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--charcoal);
  transition: all 0.2s ease;
}

.dropdown-item:hover {
  background: var(--gray-100);
  color: var(--tech-blue);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.btn-primary:hover {
  background: #E0B300;
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background: #2A2A2A;
}

.btn-outline {
  background: transparent;
  color: var(--charcoal);
  border: 2px solid var(--gray-200);
}

.btn-outline:hover {
  border-color: var(--charcoal);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--charcoal);
  position: relative;
  transition: background 0.3s ease;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--charcoal);
  left: 0;
  transition: all 0.3s ease;
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

.mobile-menu-btn.active .hamburger {
  background: transparent;
}

.mobile-menu-btn.active .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-menu-btn.active .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  padding: 0;
  z-index: 999;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.mobile-menu.active {
  display: block;
  transform: translateX(0);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  padding: 16px 0;
}

.mobile-nav-item {
  border-bottom: 1px solid var(--gray-200);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--charcoal);
  cursor: pointer;
  transition: background 0.2s ease;
}

.mobile-nav-link:hover {
  background: var(--gray-100);
}

.mobile-nav-link.active {
  color: var(--tech-blue);
}

.mobile-nav-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.mobile-nav-item.open .mobile-nav-link svg {
  transform: rotate(180deg);
}

.mobile-dropdown {
  display: none;
  background: var(--gray-100);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.mobile-nav-item.open .mobile-dropdown {
  display: block;
  max-height: 600px;
}

.mobile-dropdown-item {
  display: block;
  padding: 14px 24px 14px 40px;
  font-size: 0.9375rem;
  color: var(--gray-600);
  border-bottom: 1px solid var(--gray-200);
  cursor: pointer;
  transition: all 0.2s ease;
}

.mobile-dropdown-item:last-child {
  border-bottom: none;
}

.mobile-dropdown-item:hover {
  background: var(--gray-200);
  color: var(--tech-blue);
}

.mobile-menu-cta {
  padding: 24px;
  border-top: 1px solid var(--gray-200);
}

.mobile-menu-cta .btn {
  width: 100%;
  text-align: center;
}

body.menu-open {
  overflow: hidden;
}

/* Page Hero */
.page-hero {
  padding: 140px 0 60px;
  background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
  text-align: center;
}

.page-hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.page-hero-description {
  font-size: 1.125rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.875rem;
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--gray-500);
  transition: color 0.2s ease;
}

.breadcrumb a:hover {
  color: var(--tech-blue);
}

.breadcrumb span {
  color: var(--charcoal);
  font-weight: 500;
}

/* Hero Section */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(349deg,#ffffff 0%, var(--white-100) 0%, var(--white) 100%);
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--yellow);
  border-radius: 50%;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  max-width: 800px;
}

.hero-title-highlight {
  color: var(--tech-blue);
}

.hero-description {
  font-size: 1.25rem;
  color: var(--gray-500);
  max-width: 600px;
  margin-bottom: 40px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 64px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--charcoal);
  margin-bottom: 4px;
}

.stat-value span {
  color: var(--yellow);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* Section Styles */
.section {
  padding: 100px 0;
}

.section-gray {
  background: #ffffff;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-badge {
  display: inline-block;
  padding: 8px 16px;
  background: var(--gray-100);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--tech-blue);
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-description {
  font-size: 1.125rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
}

/* Service Detail Section */
.service-detail-section {
  padding: 60px 0 100px;
}

.service-detail-inner {
  max-width: 900px;
  margin: 0 auto;
}

.service-detail-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.service-detail-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-detail-icon svg {
  width: 40px;
  height: 40px;
  color: var(--yellow);
}

.service-detail-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--charcoal);
}

.service-detail-description {
  font-size: 1.0625rem;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 40px;
}

.service-detail-features h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 24px;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 48px;
  margin-bottom: 40px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.feature-item svg {
  width: 20px;
  height: 20px;
  color: var(--tech-blue);
  flex-shrink: 0;
}

.feature-item span {
  font-size: 0.9375rem;
  color: var(--charcoal);
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  padding: 32px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  transition: all 0.3s ease;
  cursor: pointer;
  display: block;
}

.service-card:hover {
  border-color: var(--yellow);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--gray-100);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-icon svg {
  width: 28px;
  height: 28px;
  color: var(--tech-blue);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-description {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* Portfolio Grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.portfolio-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: block;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.portfolio-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--tech-blue) 0%, #4A90E2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-image svg {
  width: 64px;
  height: 64px;
  color: white;
  opacity: 0.8;
}

.portfolio-content {
  padding: 24px;
}

.portfolio-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--tech-blue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.portfolio-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.portfolio-description {
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* Portfolio Detail */
.portfolio-detail-section {
  padding: 60px 0 100px;
}

.portfolio-detail-header {
  margin-bottom: 40px;
}

.portfolio-detail-category {
  display: inline-block;
  padding: 6px 12px;
  background: var(--gray-100);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--tech-blue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.portfolio-detail-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.portfolio-detail-meta {
  display: flex;
  gap: 24px;
  font-size: 0.875rem;
  color: var(--gray-500);
}

.portfolio-detail-image {
  width: 100%;
  height: 400px;
  background: linear-gradient(135deg, var(--tech-blue) 0%, #4A90E2 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 40px;
}

.portfolio-detail-image svg {
  width: 120px;
  height: 120px;
  color: white;
  opacity: 0.8;
}

.portfolio-detail-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
}

.portfolio-detail-description h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.portfolio-detail-description p {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 24px;
}

.portfolio-detail-sidebar {
  background: var(--gray-100);
  border-radius: 16px;
  padding: 32px;
}

.sidebar-item {
  margin-bottom: 24px;
}

.sidebar-item:last-child {
  margin-bottom: 0;
}

.sidebar-item h4 {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.sidebar-item p {
  font-size: 1rem;
  font-weight: 500;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tag {
  padding: 6px 12px;
  background: var(--white);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
}

/* About Section */
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-content {
  max-width: 520px;
}

.about-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.about-description {
  font-size: 1.0625rem;
  color: var(--gray-500);
  margin-bottom: 32px;
  line-height: 1.7;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
}

.about-feature-icon {
  width: 24px;
  height: 24px;
  background: var(--yellow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-feature-icon svg {
  width: 14px;
  height: 14px;
  color: var(--charcoal);
}

.about-visual {
  display: flex;
  justify-content: center;
}

.about-card {
  background: var(--gray-100);
  border-radius: 24px;
  padding: 48px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.08);
  text-align: center;
  max-width: 360px;
}

.about-card-value {
  font-size: 5rem;
  font-weight: 800;
  color: var(--yellow);
  line-height: 1;
  margin-bottom: 8px;
}

.about-card-label {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 16px;
}

.about-card-description {
  font-size: 0.9375rem;
  color: var(--gray-500);
}

/* Team Grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 64px;
}

.team-card {
  text-align: center;
}

.team-avatar {
  width: 120px;
  height: 120px;
  background: var(--gray-200);
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.team-avatar svg {
  width: 48px;
  height: 48px;
  color: var(--gray-500);
}

.team-name {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-role {
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* Contact Section */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.contact-info h2 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.contact-info > p {
  font-size: 1.0625rem;
  color: var(--gray-500);
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: var(--white);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 24px;
  height: 24px;
  color: var(--tech-blue);
}

.contact-item-content h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.contact-item-content p {
  font-size: 1rem;
  font-weight: 500;
}

.contact-hours h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-hours p {
  font-size: 0.9375rem;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.contact-form-wrapper {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 24px;
  padding: 40px;
}

.contact-form h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  background: var(--white);
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--tech-blue);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  margin-top: 8px;
}

/* Footer */
.footer {
  background: var(--charcoal);
  color: var(--white);
  padding: 64px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: #999;
  font-size: 0.9375rem;
  margin-top: 16px;
  line-height: 1.6;
}

.footer-column h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: #CCC;
  font-size: 0.9375rem;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--yellow);
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.social-link {
  width: 40px;
  height: 40px;
  background: #2A2A2A;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.social-link:hover {
  background: var(--yellow);
}

.social-link:hover svg {
  color: var(--charcoal);
}

.social-link svg {
  width: 20px;
  height: 20px;
  color: #999;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid #333;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copyright {
  font-size: 0.875rem;
  color: #999;
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 0.875rem;
  color: #999;
  transition: color 0.2s ease;
}

.footer-legal a:hover {
  color: var(--white);
}

/* Responsive */
@media (max-width: 1024px) {
  .services-grid,
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .portfolio-detail-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav .btn {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .services-grid,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .about-inner {
    grid-template-columns: 1fr;
  }

  .about-visual {
    order: -1;
  }

  .contact-inner {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

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

  .page-hero-title {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .section-title {
    font-size: 2rem;
  }

  .about-title,
  .contact-info h2 {
    font-size: 2rem;
  }
}