/* CSS Variables - Modern Dark Theme */
:root {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --accent: #22d3ee;
  --accent-green: #10b981;
  --dark: #0f172a;
  --dark-lighter: #1e293b;
  --dark-card: #1e293b;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --white: #ffffff;
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --gradient-dark: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 8px 10px -6px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-300);
  background: var(--dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

p { margin-bottom: 1rem; }

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

a:hover { color: var(--accent); }

ul { list-style: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  gap: 8px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
  color: var(--white);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--gray-600);
}

.btn-secondary:hover {
  background: var(--gray-800);
  border-color: var(--gray-500);
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--primary-light);
  border: 1px solid var(--primary);
}

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

.btn-large { padding: 18px 48px; font-size: 1.05rem; }
.btn-full { width: 100%; }
.text-center { text-align: center; }

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  z-index: 1000;
  padding: 16px 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 12px;
}

.logo-img {
  height: 50px;
  max-height: 50px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
}

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

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--white);
}

.logo-name { color: var(--white); }
.logo-4 { color: var(--primary-light); }
.logo-ai {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-links a {
  color: var(--gray-400);
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

.nav-links a.active {
  color: var(--white);
  background: rgba(99, 102, 241, 0.15);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-300);
  transition: var(--transition);
  border-radius: 2px;
}

/* Hero Section */
.hero {
  padding: 180px 0 120px;
  background: var(--gradient-dark);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 100px;
  font-size: 0.875rem;
  color: var(--primary-light);
  margin-bottom: 24px;
}

.hero h1 {
  margin-bottom: 24px;
}

.highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-400);
  margin-bottom: 48px;
  max-width: 600px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-bottom: 48px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-cta {
  display: flex;
  gap: 16px;
}

/* Page Hero */
.page-hero {
  padding: 160px 0 80px;
  background: var(--gradient-dark);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero h1 {
  margin-bottom: 16px;
  position: relative;
}

.page-hero p {
  color: var(--gray-400);
  font-size: 1.2rem;
  position: relative;
}

/* Services Preview */
.services-preview {
  padding: 100px 0;
  background: var(--dark);
}

.section-title {
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: var(--gray-400);
  max-width: 600px;
  margin: 0 auto 60px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 50px;
}

.service-card {
  background: var(--dark-card);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: var(--shadow-glow);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius);
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.service-card h3 {
  margin-bottom: 12px;
  font-size: 1.125rem;
}

.service-card p {
  color: var(--gray-400);
  margin-bottom: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Why Us Section */
.why-us {
  padding: 100px 0;
  background: var(--dark-lighter);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.why-item {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
  border: 1px solid rgba(99, 102, 241, 0.1);
}

.why-item h3 {
  color: var(--white);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.why-item h3::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.why-item p {
  color: var(--gray-400);
  margin-bottom: 0;
}

/* CTA Section */
.cta-section {
  padding: 100px 0;
  background: var(--dark);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(99, 102, 241, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--gray-400);
  margin-bottom: 32px;
  font-size: 1.1rem;
}

/* Services Detail */
.services-detail {
  padding: 80px 0;
  background: var(--dark);
}

.service-block {
  margin-bottom: 40px;
  padding: 40px;
  background: var(--dark-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.service-block:hover {
  border-color: rgba(99, 102, 241, 0.2);
}

.service-content h2 {
  margin-bottom: 16px;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 12px;
}

.service-content > p {
  font-size: 1.05rem;
  color: var(--gray-400);
  margin-bottom: 24px;
}

.service-content ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.service-content li {
  padding: 12px 0 12px 28px;
  position: relative;
  color: var(--gray-300);
}

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

/* About Section */
.about-story {
  padding: 80px 0;
  background: var(--dark);
}

.story-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.story-content h2 {
  margin-bottom: 24px;
}

.story-content p {
  font-size: 1.1rem;
  color: var(--gray-400);
}

/* Team Section */
.team-section {
  padding: 80px 0;
  background: var(--dark-lighter);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.team-card {
  background: var(--dark-card);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  transition: var(--transition);
}

.team-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-4px);
}

.team-avatar {
  width: 100px;
  height: 100px;
  background: var(--gradient-primary);
  color: var(--white);
  font-size: 2rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.team-card h3 {
  margin-bottom: 4px;
  font-size: 1.25rem;
}

.team-role {
  color: var(--primary-light);
  font-weight: 500;
  margin-bottom: 16px !important;
  font-size: 0.95rem;
}

.team-bio {
  color: var(--gray-400);
  font-size: 0.9rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.team-expertise {
  text-align: left;
  margin-bottom: 24px;
  background: rgba(99, 102, 241, 0.05);
  padding: 16px 20px;
  border-radius: var(--radius);
}

.team-expertise li {
  padding: 6px 0 6px 20px;
  position: relative;
  font-size: 0.875rem;
  color: var(--gray-300);
}

.team-expertise li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.team-social a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--primary-light);
  transition: var(--transition);
}

.team-social a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

/* Values Section */
.values-section {
  padding: 80px 0;
  background: var(--dark);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.value-item {
  text-align: center;
  padding: 32px 24px;
  background: var(--dark-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.value-item h3 {
  color: var(--white);
  margin-bottom: 12px;
  font-size: 1.125rem;
}

.value-item p {
  color: var(--gray-400);
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Contact Section */
.contact-section {
  padding: 80px 0;
  background: var(--dark);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--gray-400);
  margin-bottom: 40px;
}

.contact-details {
  margin-bottom: 40px;
}

.contact-item {
  margin-bottom: 24px;
  padding: 20px;
  background: var(--dark-card);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-item h3 {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.contact-item p {
  margin-bottom: 0;
  color: var(--white);
  font-size: 1.05rem;
}

.contact-item a {
  color: var(--white);
}

.contact-item a:hover {
  color: var(--accent);
}

.contact-social h3 {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-300);
  font-size: 0.95rem;
}

.social-links a:hover {
  color: var(--primary-light);
}

/* Contact Form */
.contact-form-wrapper {
  background: var(--dark-card);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--gray-300);
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--dark);
  border: 1px solid var(--gray-700);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  color: var(--white);
  transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-600);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.alert {
  padding: 40px;
  border-radius: var(--radius-lg);
  text-align: center;
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.alert-success h3 {
  color: var(--accent-green);
  margin-bottom: 12px;
}

.alert-success p {
  color: var(--gray-300);
  margin-bottom: 0;
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 20px;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.alert-error p {
  color: #ef4444;
  margin-bottom: 0;
}

/* Error Page */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px;
}

.error-page h1 {
  font-size: 10rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.error-page p {
  font-size: 1.2rem;
  color: var(--gray-400);
  margin-bottom: 32px;
}

/* Footer */
.footer {
  background: var(--gray-900);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
  display: inline-flex;
}

.footer-brand .logo-img {
  height: 44px;
  max-height: 44px;
}

.footer-brand p {
  color: var(--gray-500);
  margin-bottom: 0;
  font-size: 0.95rem;
}

.footer h4 {
  color: var(--white);
  margin-bottom: 20px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

.footer-links a {
  color: var(--gray-500);
  font-size: 0.95rem;
}

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

.footer-contact p {
  margin-bottom: 8px;
  color: var(--gray-500);
  font-size: 0.95rem;
}

.footer-contact a {
  color: var(--gray-500);
}

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

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

.footer-bottom p {
  margin-bottom: 0;
  color: var(--gray-600);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--dark-lighter);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: none;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    padding: 14px 16px;
    border-radius: var(--radius);
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    padding: 140px 0 80px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }

  .hero-cta {
    flex-direction: column;
  }

  .stat-number {
    font-size: 2.5rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-links ul {
    align-items: center;
  }

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

  .service-block {
    padding: 24px;
  }

  .contact-form-wrapper {
    padding: 24px;
  }
}