:root {
  --primary: #1e3a8a;
  --secondary: #3b82f6;
  --accent: #06b6d4;
  --dark: #1f2937;
  --light: #f8fafc;
  --white: #ffffff;
  --shadow: rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background: var(--white);
  box-shadow: 0 2px 10px var(--shadow);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--secondary);
}

.nav-links a.active {
  color: var(--secondary);
  position: relative;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--secondary);
  border-radius: 1px;
}

/* Hero Section */


.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}



/* Sections */
.section {
  padding: 80px 0;
}



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

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card {
  background: var(--white);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px var(--shadow);
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

.card h3 {
  color: var(--primary);
  margin-bottom: 1rem;
}

/* About Section */
.about {
  background: var(--light);
}

/* Services */
.service-icon {
  font-size: 3rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

/* Projects */
.project {
  border-left: 4px solid var(--accent);
  padding-left: 1rem;
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 1rem;
}

/* Footer */
.footer {
  background: var(--dark);
  color: var(--white);
  text-align: center;
  padding: 2rem 0;
  margin-top: 4rem;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 1rem 0;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: transform 0.3s, background-color 0.3s;
  text-decoration: none;
}

.social-link:hover {
  transform: translateY(-2px);
}

.social-link.facebook {
  background-color: #1877f2;
}

.social-link.instagram {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
}

.social-link.twitter {
  background-color: #000000;
}

.social-link.linkedin {
  background-color: #0077b5;
}

/* Chatbot Styles */
.chatbot-toggle {
  position: fixed;
  bottom: 120px;
  right: 40px;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chatbot-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
}

.chatbot-container {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 350px;
  height: 500px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  z-index: 1001;
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.chatbot-header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chatbot-title {
  font-weight: 600;
  font-size: 1rem;
}

.chatbot-close {
  background: none;
  border: none;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.chatbot-close:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.chatbot-messages {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message {
  max-width: 80%;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  font-size: 0.9rem;
  line-height: 1.4;
}

.message.user {
  background: var(--primary);
  color: white;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.message.bot {
  background: #f3f4f6;
  color: var(--dark);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.message.typing {
  background: #f3f4f6;
  color: #6b7280;
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.chatbot-input-area {
  padding: 1rem;
  border-top: 1px solid #e5e7eb;
  display: flex;
  gap: 0.5rem;
}

.chatbot-input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  outline: none;
  font-size: 0.9rem;
}

.chatbot-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(30, 58, 138, 0.1);
}

.chatbot-send {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.chatbot-send:hover {
  background: var(--secondary);
}

.chatbot-send:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}

.chatbot-popup {
  position: fixed;
  bottom: 190px;
  right: 40px;
  background: white;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  z-index: 999;
  max-width: 280px;
  display: none;
  animation: slideInUp 0.4s ease-out;
}

.chatbot-popup::before {
  content: '';
  position: absolute;
  bottom: -8px;
  right: 20px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid white;
}

.chatbot-popup-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 0.5rem;
}

.chatbot-popup-avatar {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.chatbot-popup-name {
  font-weight: 600;
  color: var(--primary);
  font-size: 0.9rem;
}

.chatbot-popup-close {
  background: none;
  border: none;
  color: #9ca3af;
  cursor: pointer;
  font-size: 1.2rem;
  margin-left: auto;
  padding: 2px;
  border-radius: 4px;
  transition: color 0.2s;
}

.chatbot-popup-close:hover {
  color: var(--primary);
}

.chatbot-popup-message {
  color: var(--dark);
  font-size: 0.85rem;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.chatbot-popup-button {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
  width: 100%;
}

.chatbot-popup-button:hover {
  background: var(--secondary);
}

@keyframes slideInUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@media (max-width: 768px) {
  .chatbot-toggle {
    bottom: 100px;
    right: 20px;
    width: 50px;
    height: 50px;
  }
  
  .chatbot-container {
    bottom: 20px;
    right: 20px;
    left: 20px;
    width: auto;
    height: 400px;
  }
  
  .chatbot-popup {
    bottom: 160px;
    right: 20px;
    left: 20px;
    max-width: none;
  }
  
  .chatbot-popup::before {
    right: 40px;
  }
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary);
}

.search-btn {
  background: none;
  border: 1px solid var(--primary);
  cursor: pointer;
  color: var(--primary);
  padding: 8px 12px;
  border-radius: 6px;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 500;
}

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

.search-btn svg {
  transition: all 0.3s;
}

.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  z-index: 2000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
  backdrop-filter: blur(3px);
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.search-box {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  width: 90%;
  max-width: 600px;
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  max-height: 70vh;
  overflow: hidden;
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.search-input {
  width: 100%;
  padding: 16px 20px;
  font-size: 1.1rem;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  outline: none;
  box-sizing: border-box;
  transition: all 0.3s;
  font-family: inherit;
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(30, 58, 138, 0.1);
}

.search-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.search-header h3 {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 600;
}

.search-results {
  margin-top: 1rem;
  max-height: 300px;
  overflow-y: auto;
  border-radius: 5px;
}

.search-result {
  padding: 16px 20px;
  border-bottom: 1px solid #f3f4f6;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: 6px;
  margin-bottom: 4px;
}

.search-result:hover {
  background-color: var(--light);
  transform: translateX(4px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.search-result:last-child {
  border-bottom: none;
}

.search-result strong {
  color: var(--primary);
  font-weight: 600;
}

.search-result small {
  color: #6b7280;
  font-size: 0.85rem;
}

.close-search {
  position: absolute;
  top: 15px;
  right: 20px;
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--dark);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color 0.2s;
}

.close-search:hover {
  background-color: var(--light);
}

/* WhatsApp Float Button */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 40px;
  right: 40px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 2px 2px 3px #999;
  z-index: 100;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.whatsapp-float:hover {
  background-color: #128c7e;
  transform: scale(1.1);
  color: #FFF;
}

/* Animated Background Elements */
.animated-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

/* Cloud Animations */
.cloud-animation {
  position: absolute;
  width: 100%;
  height: 100%;
}

.cloud {
  position: absolute;
  font-size: 3rem;
  opacity: 0.3;
  animation: float 6s ease-in-out infinite;
}

.cloud1 {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.cloud2 {
  top: 60%;
  right: 15%;
  animation-delay: 2s;
}

.cloud3 {
  top: 40%;
  left: 70%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) translateX(0px); }
  25% { transform: translateY(-20px) translateX(10px); }
  50% { transform: translateY(-10px) translateX(-5px); }
  75% { transform: translateY(-15px) translateX(5px); }
}

/* AI Animations */
.ai-animation {
  position: absolute;
  width: 100%;
  height: 100%;
}

.ai-node {
  position: absolute;
  font-size: 2rem;
  opacity: 0.4;
  animation: pulse 3s ease-in-out infinite;
}

.ai1 {
  top: 30%;
  right: 20%;
  animation-delay: 0s;
}

.ai2 {
  top: 70%;
  left: 20%;
  animation-delay: 1s;
}

.ai3 {
  top: 50%;
  right: 60%;
  animation-delay: 2s;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.2); opacity: 0.7; }
}

.ai-connection {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 100px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.3), transparent);
  transform: translate(-50%, -50%) rotate(45deg);
  animation: connect 4s linear infinite;
}

@keyframes connect {
  0% { opacity: 0; transform: translate(-50%, -50%) rotate(45deg) scaleY(0); }
  50% { opacity: 1; transform: translate(-50%, -50%) rotate(45deg) scaleY(1); }
  100% { opacity: 0; transform: translate(-50%, -50%) rotate(45deg) scaleY(0); }
}

/* Service Icon Animations */
.animated-cloud {
  animation: cloudBounce 2s ease-in-out infinite;
}

.animated-ai {
  animation: aiGlow 2s ease-in-out infinite alternate;
}

@keyframes cloudBounce {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes aiGlow {
  0% { transform: scale(1); filter: brightness(1); }
  100% { transform: scale(1.1); filter: brightness(1.2); }
}

/* Floating Animation for Cards */
.card {
  animation: cardFloat 6s ease-in-out infinite;
}

.card:nth-child(1) { animation-delay: 0s; }
.card:nth-child(2) { animation-delay: 1s; }
.card:nth-child(3) { animation-delay: 2s; }
.card:nth-child(4) { animation-delay: 3s; }

@keyframes cardFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-5px); }
}

/* Data Flow Animation */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 1px, transparent 1px),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.1) 1px, transparent 1px),
    radial-gradient(circle at 60% 20%, rgba(255,255,255,0.1) 1px, transparent 1px);
  background-size: 100px 100px, 150px 150px, 80px 80px;
  animation: dataFlow 20s linear infinite;
  pointer-events: none;
  z-index: 1;
}

@keyframes dataFlow {
  0% { background-position: 0% 0%, 0% 0%, 0% 0%; }
  100% { background-position: 100% 100%, -100% -100%, 50% 50%; }
}

/* Video Section */
.video-section {
  background: var(--light);
}

.video-preview {
  max-width: 800px;
  margin: 0 auto;
}

.video-link {
  display: block;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.video-link:hover {
  transform: scale(1.02);
}

.video-thumbnail {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.video-thumbnail img {
  width: 100%;
  height: auto;
  display: block;
}

.play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  transition: background 0.3s ease;
}

.video-link:hover .play-overlay {
  background: rgba(0, 0, 0, 0.7);
}

.play-button {
  background: rgba(255, 0, 0, 0.9);
  border-radius: 50%;
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
}

.video-link:hover .play-button {
  transform: scale(1.1);
  background: rgba(255, 0, 0, 1);
}

.video-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  text-align: center;
}

.video-info p {
  font-size: 1rem;
  margin: 0;
  text-align: center;
  opacity: 0.9;
}

/* Responsive Animations */
@media (max-width: 768px) {
  .cloud, .ai-node {
    font-size: 2rem;
  }
  
  .animated-bg {
    opacity: 0.7;
  }
  
  .hero::before {
    opacity: 0.5;
  }
  
  .video-container {
    border-radius: 8px;
  }
}

/* Professional Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
  text-align: center;
}

.stat-item {
  padding: 2rem 1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 12px;
  color: white;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
}

.stat-number {
  font-size: 3rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1rem;
  opacity: 0.9;
}

/* Professional Icons */
.professional-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  display: block;
}

/* Professional Service Cards */
.professional-service {
  border: 1px solid #e0e0e0;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.professional-service::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: left 0.3s ease;
}

.professional-service:hover::before {
  left: 0;
}

.professional-service:hover {
  border-color: var(--primary);
  box-shadow: 0 10px 30px rgba(30, 58, 138, 0.15);
}

.service-features {
  list-style: none;
  padding: 0;
  margin-top: 1rem;
}

.service-features li {
  padding: 0.3rem 0;
  color: var(--dark);
  font-size: 0.9rem;
  position: relative;
  padding-left: 1.2rem;
}

.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: bold;
}

/* Professional Testimonials */
.testimonial-card {
  background: #f8f9fa;
  border-left: 4px solid var(--primary);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.testimonial-content {
  margin-bottom: 1.5rem;
}

.testimonial-content p {
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--dark);
}

.testimonial-author strong {
  display: block;
  color: var(--primary);
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.testimonial-author span {
  color: #6b7280;
  font-size: 0.9rem;
}

/* Enhanced Buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(30, 58, 138, 0.4);
}

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

.btn-secondary:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(30, 58, 138, 0.3);
}

/* Enhanced Hero */
.hero {
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #667eea 100%);
  color: white;
  padding: 140px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3.8rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
  line-height: 1.1;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero p {
  font-size: 1.4rem;
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.95;
  line-height: 1.6;
}

/* Enhanced Section Titles */
.section-title {
  text-align: center;
  font-size: 2.8rem;
  margin-bottom: 3.5rem;
  color: var(--dark);
  font-weight: 700;
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    box-shadow: 0 2px 10px var(--shadow);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu {
    display: block;
  }
  
  .search-btn {
    padding: 6px 8px;
    font-size: 0.8rem;
  }
  
  .search-btn span {
    display: none;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .section-title {
    font-size: 2.2rem;
  }
  
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 20px;
    right: 20px;
    font-size: 25px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .professional-icon {
    font-size: 2.5rem;
  }
  
  .testimonial-card {
    padding: 1.5rem;
  }
}