:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #8b5cf6;
  --accent: #ec4899;
  --dark: #0f172a;
  --dark-light: #1e293b;
  --gray: #64748b;
  --light: #f8fafc;
  --white: #ffffff;
}

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

body {
  font-family: 'Inter', sans-serif;
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

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

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 20px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

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

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  text-decoration: none;
  font-family: 'Space Grotesk', sans-serif;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 40px;
  align-items: center;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s;
}

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

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

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

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--dark);
  transition: 0.3s;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

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

.hero-tag {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 56px;
  margin-bottom: 20px;
  color: var(--dark);
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  color: var(--gray);
  margin-bottom: 30px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 20px;
}

.btn {
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  display: inline-block;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

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

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

.hero-visual {
  position: relative;
  height: 500px;
}

.floating-card {
  position: absolute;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  animation: float 6s ease-in-out infinite;
}

.card-1 {
  width: 280px;
  height: 180px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  top: 50px;
  left: 50px;
}

.card-2 {
  width: 240px;
  height: 160px;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
  top: 200px;
  right: 80px;
  animation-delay: -2s;
}

.card-3 {
  width: 200px;
  height: 140px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  bottom: 80px;
  left: 100px;
  animation-delay: -4s;
}

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

section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 15px;
}

.section-header h2 {
  font-size: 42px;
  color: var(--dark);
}

.about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-content h3 {
  font-size: 32px;
  margin-bottom: 20px;
  color: var(--dark);
}

.about-content p {
  color: var(--gray);
  margin-bottom: 15px;
  font-size: 16px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.stat-item {
  text-align: center;
  padding: 20px;
  background: var(--light);
  border-radius: 15px;
}

.stat-item h4 {
  font-size: 36px;
  color: var(--primary);
  margin-bottom: 5px;
}

.stat-item p {
  color: var(--gray);
  font-size: 14px;
}

.skill-item {
  margin-bottom: 25px;
}

.skill-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  font-weight: 600;
  color: var(--dark);
}

.skill-bar {
  height: 10px;
  background: var(--light);
  border-radius: 10px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 10px;
  transition: width 1s ease;
}

.services {
  background: var(--light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: var(--white);
  padding: 40px 30px;
  border-radius: 20px;
  transition: all 0.3s;
  border: 1px solid transparent;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  border-color: var(--primary);
}

.service-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-icon i {
  font-size: 32px;
  color: var(--white);
}

.service-card h3 {
  font-size: 22px;
  margin-bottom: 15px;
  color: var(--dark);
}

.service-card p {
  color: var(--gray);
  font-size: 15px;
}

.portfolio {
  background: var(--white);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.portfolio-item {
  border-radius: 20px;
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  transition: all 0.3s;
}

.portfolio-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
  height: 250px;
  overflow: hidden;
}

.placeholder-img {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.placeholder-img i {
  font-size: 64px;
  color: rgba(255, 255, 255, 0.9);
}

.portfolio-content {
  padding: 25px;
}

.portfolio-content h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: var(--dark);
}

.portfolio-content p {
  color: var(--gray);
  font-size: 14px;
}

.contact {
  background: var(--light);
}

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

.contact-info h3 {
  font-size: 32px;
  margin-bottom: 15px;
  color: var(--dark);
}

.contact-info > p {
  color: var(--gray);
  margin-bottom: 30px;
}

.contact-details {
  margin-bottom: 30px;
}

.contact-item {
  display: flex;
  gap: 20px;
  margin-bottom: 25px;
}

.contact-item i {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 20px;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 18px;
  margin-bottom: 5px;
  color: var(--dark);
}

.contact-item p, .contact-item a {
  color: var(--gray);
  font-size: 15px;
  text-decoration: none;
}

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

.social-links {
  display: flex;
  gap: 15px;
}

.social-links a {
  width: 45px;
  height: 45px;
  background: var(--white);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark);
  transition: all 0.3s;
  text-decoration: none;
}

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

.contact-form {
  background: var(--white);
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.form-group {
  margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px 20px;
  border: 2px solid var(--light);
  border-radius: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  transition: border-color 0.3s;
}

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

.form-group textarea {
  resize: vertical;
}

.footer {
  background: var(--dark);
  color: var(--white);
  padding: 60px 0 30px;
}

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

.footer-col h3 {
  font-size: 24px;
  margin-bottom: 15px;
}

.footer-col h4 {
  font-size: 18px;
  margin-bottom: 20px;
}

.footer-col p {
  color: var(--gray);
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: var(--gray);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-col ul li a:hover {
  color: var(--white);
}

.footer .social-links a {
  background: var(--dark-light);
}

.footer .social-links a:hover {
  background: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid var(--dark-light);
  color: var(--gray);
}

.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: all 0.3s;
  z-index: 999;
}

.scroll-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

.scroll-top.active {
  display: flex;
}

@media (max-width: 992px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--white);
    flex-direction: column;
    padding: 40px;
    transition: left 0.3s;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  }

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

  .menu-toggle {
    display: flex;
  }

  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero-visual {
    display: none;
  }

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

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

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

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

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

@media (max-width: 768px) {
  .hero h1 {
    font-size: 36px;
  }

  .section-header h2 {
    font-size: 32px;
  }

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

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

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

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

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

  .btn {
    text-align: center;
  }
}