/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color System */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;

  --secondary-50: #f0fdfa;
  --secondary-100: #ccfbf1;
  --secondary-200: #99f6e4;
  --secondary-300: #5eead4;
  --secondary-400: #2dd4bf;
  --secondary-500: #14b8a6;
  --secondary-600: #0d9488;
  --secondary-700: #0f766e;
  --secondary-800: #115e59;
  --secondary-900: #134e4a;

  --accent-50: #fff7ed;
  --accent-100: #ffedd5;
  --accent-200: #fed7aa;
  --accent-300: #fdba74;
  --accent-400: #fb923c;
  --accent-500: #f97316;
  --accent-600: #ea580c;
  --accent-700: #c2410c;
  --accent-800: #9a3412;
  --accent-900: #7c2d12;

  --neutral-50: #f9fafb;
  --neutral-100: #f3f4f6;
  --neutral-200: #e5e7eb;
  --neutral-300: #d1d5db;
  --neutral-400: #9ca3af;
  --neutral-500: #6b7280;
  --neutral-600: #4b5563;
  --neutral-700: #374151;
  --neutral-800: #1f2937;
  --neutral-900: #111827;

  --success-500: #10b981;
  --warning-500: #f59e0b;
  --error-500: #ef4444;

  /* Spacing System */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Typography */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-base: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  line-height: 1.5;
  color: var(--neutral-800);
  background-color: var(--neutral-50);
  font-size: var(--font-size-base);
}

/* Utility Classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--space-2);
  font-weight: 500;
  font-size: var(--font-size-base);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-700), var(--primary-800));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-600);
  border: 2px solid var(--primary-600);
}

.btn-secondary:hover {
  background: var(--primary-600);
  color: white;
  transform: translateY(-2px);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--neutral-200);
  z-index: 1000;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-logo h2 {
  color: var(--primary-600);
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.nav-menu {
  display: flex;
  gap: var(--space-8);
}

.nav-link {
  color: var(--neutral-700);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-600);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-600);
  transition: width var(--transition-base);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--neutral-700);
  margin: 3px 0;
  transition: var(--transition-base);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--neutral-50) 0%, var(--primary-50) 100%);
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero-content {
  z-index: 2;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-6);
  color: var(--neutral-900);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--neutral-600);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-card {
  position: absolute;
  background: white;
  padding: var(--space-6);
  border-radius: var(--space-4);
  box-shadow: var(--shadow-lg);
  text-align: center;
  animation: float 6s ease-in-out infinite;
  backdrop-filter: blur(10px);
  border: 1px solid var(--neutral-200);
}

.floating-card .card-icon {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-2);
}

.floating-card h4 {
  color: var(--neutral-700);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.card-1 {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 60%;
  right: 20%;
  animation-delay: 2s;
}

.card-3 {
  bottom: 20%;
  left: 20%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-header h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: var(--font-size-lg);
  color: var(--neutral-600);
  max-width: 600px;
  margin: 0 auto;
}

/* Services Section */
.services {
  padding: var(--space-24) 0;
  background: white;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.service-card {
  background: white;
  padding: var(--space-8);
  border-radius: var(--space-4);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--neutral-200);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-600), var(--secondary-600));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

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

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-4);
}

.service-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: var(--space-4);
}

.service-card p {
  color: var(--neutral-600);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

.service-features {
  list-style: none;
  text-align: left;
}

.service-features li {
  padding: var(--space-2) 0;
  color: var(--neutral-700);
  position: relative;
  padding-left: var(--space-6);
}

.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success-500);
  font-weight: 600;
}

/* About Section */
.about {
  padding: var(--space-24) 0;
  background: var(--neutral-50);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-text h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: var(--space-6);
}

.about-description {
  font-size: var(--font-size-lg);
  color: var(--neutral-600);
  line-height: 1.6;
  margin-bottom: var(--space-8);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

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

.stat-number {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--primary-600);
  margin-bottom: var(--space-2);
}

.stat-item p {
  color: var(--neutral-600);
  font-size: var(--font-size-sm);
}

.about-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-placeholder {
  width: 400px;
  height: 300px;
  background: linear-gradient(135deg, var(--primary-100), var(--secondary-100));
  border-radius: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.code-animation {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.code-line {
  height: 4px;
  background: var(--primary-600);
  border-radius: 2px;
  animation: typing 3s ease-in-out infinite;
}

.code-line:nth-child(1) {
  width: 120px;
  animation-delay: 0s;
}

.code-line:nth-child(2) {
  width: 80px;
  animation-delay: 0.5s;
}

.code-line:nth-child(3) {
  width: 100px;
  animation-delay: 1s;
}

.code-line:nth-child(4) {
  width: 90px;
  animation-delay: 1.5s;
}

@keyframes typing {
  0%, 20% {
    width: 0;
  }
  40%, 80% {
    width: var(--original-width, 100px);
  }
  100% {
    width: 0;
  }
}

/* Testimonials Section */
.testimonials {
  padding: var(--space-24) 0;
  background: white;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-8);
}

.testimonial-card {
  background: white;
  padding: var(--space-8);
  border-radius: var(--space-4);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-200);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.testimonial-content {
  margin-bottom: var(--space-8);
}

.testimonial-content p {
  font-style: italic;
  color: var(--neutral-700);
  line-height: 1.6;
  font-size: var(--font-size-lg);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.author-info h4 {
  color: var(--neutral-900);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.author-info p {
  color: var(--neutral-600);
  font-size: var(--font-size-sm);
}

/* Contact Section */
.contact {
  padding: var(--space-24) 0;
  background: var(--neutral-50);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.contact-info h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: var(--space-4);
}

.contact-info p {
  font-size: var(--font-size-lg);
  color: var(--neutral-600);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.contact-icon {
  font-size: var(--font-size-2xl);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-100);
  border-radius: var(--space-2);
}

.contact-item h4 {
  color: var(--neutral-900);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.contact-item p {
  color: var(--neutral-600);
}

.contact-form {
  background: white;
  padding: var(--space-8);
  border-radius: var(--space-4);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-200);
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-4);
  border: 1px solid var(--neutral-300);
  border-radius: var(--space-2);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-600);
  box-shadow: 0 0 0 3px var(--primary-100);
}

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

/* Footer */
.footer {
  background: var(--neutral-900);
  color: white;
  padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: var(--space-4);
  color: white;
}

.footer-section h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.footer-section p {
  color: var(--neutral-400);
  line-height: 1.6;
}

.footer-section a {
  color: var(--neutral-400);
  text-decoration: none;
  display: block;
  margin-bottom: var(--space-2);
  transition: color var(--transition-base);
}

.footer-section a:hover {
  color: var(--primary-400);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--neutral-700);
  color: var(--neutral-400);
}

/* Animations */
[data-aos] {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-container,
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .hero-image {
    order: -1;
    height: 300px;
  }

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

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 80px;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow-lg);
    padding: var(--space-8) 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

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

  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-title {
    font-size: var(--font-size-4xl);
  }

  .hero-buttons {
    justify-content: center;
  }

  .section-header h2 {
    font-size: var(--font-size-3xl);
  }

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

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

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .about-text h2 {
    font-size: var(--font-size-3xl);
  }

  .contact-info h2 {
    font-size: var(--font-size-3xl);
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-3);
  }

  .nav-container {
    padding: 0 var(--space-3);
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-description {
    font-size: var(--font-size-base);
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .services-grid {
    gap: var(--space-6);
  }

  .service-card {
    padding: var(--space-6);
  }

  .contact-form {
    padding: var(--space-6);
  }
}