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

:root {
  --primary-color: #1a3a52;
  --secondary-color: #2563eb;
  --accent-color: #06b6d4;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f8fafc;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

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

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Loading animation */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
  transition: opacity 0.5s ease;
}

.loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-content {
  text-align: center;
  color: white;
}

.loader-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 0;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.logo img {
  width: 40px;
  height: 40px;
  transition: transform 0.3s ease;
}

.logo:hover img {
  transform: rotate(360deg);
}

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

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

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary-color);
  transition: width 0.3s ease;
}

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

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

/* Hero Section */
.hero {
  min-height: 100vh;
  background: var(--gradient);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  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 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  color: white;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.5s forwards;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.7s forwards;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.9s forwards;
}

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

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

.hero-visual {
  position: relative;
  opacity: 0;
  transform: translateX(50px);
  animation: fadeInRight 1s ease 1s forwards;
}

.floating-elements {
  position: absolute;
  width: 100%;
  height: 100%;
}

.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  padding: 1.5rem;
  color: white;
  animation: float 6s ease-in-out infinite;
}

.floating-card:nth-child(1) {
  top: 10%;
  right: 10%;
  animation-delay: 0s;
}

.floating-card:nth-child(2) {
  top: 50%;
  right: 20%;
  animation-delay: 2s;
}

.floating-card:nth-child(3) {
  bottom: 20%;
  right: 5%;
  animation-delay: 4s;
}

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

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Services Section */
.services {
  padding: 6rem 0;
  background: var(--bg-light);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

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

.service-card {
  background: white;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

.service-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.service-description {
  color: var(--text-light);
  line-height: 1.6;
}

/* Portfolio Section */
.portfolio {
  padding: 6rem 0;
  background: white;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.portfolio-item {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  background: var(--bg-light);
  aspect-ratio: 16 / 10;
  cursor: pointer;
  transition: all 0.3s ease;
}

.portfolio-item:hover {
  transform: scale(1.02);
}

.portfolio-image {
  width: 100%;
  height: 100%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 3rem;
  position: relative;
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(26, 58, 82, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-info {
  text-align: center;
  color: white;
  padding: 2rem;
}

.portfolio-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.portfolio-category {
  color: var(--accent-color);
  font-size: 0.9rem;
}

/* About Section */
.about {
  padding: 6rem 0;
  background: var(--bg-light);
}

.about-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-content {
  padding-right: 2rem;
}

.about-text {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--secondary-color);
  display: block;
}

.stat-label {
  color: var(--text-light);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.about-visual {
  position: relative;
}

.about-image {
  width: 100%;
  height: 400px;
  background: var(--gradient);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 4rem;
}

/* Contact Section */
.contact {
  padding: 6rem 0;
  background: white;
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info {
  padding-right: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.contact-details h4 {
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-dark);
}

.contact-details p {
  color: var(--text-light);
}

.contact-form {
  background: var(--bg-light);
  padding: 2.5rem;
  border-radius: 20px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-dark);
}

.form-input {
  width: 100%;
  padding: 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  background: white;
}

.form-input:focus {
  outline: none;
  border-color: var(--secondary-color);
}

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

.submit-btn {
  width: 100%;
  background: var(--gradient);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

/* Footer */
.footer {
  background: var(--text-dark);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  color: white;
}

.footer-section p,
.footer-section a {
  color: #9ca3af;
  text-decoration: none;
  line-height: 1.6;
}

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

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--secondary-color);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  text-align: center;
  color: #9ca3af;
}

/* Scroll to top button */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--gradient);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    flex-direction: column;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

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

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

  .about-container,
  .contact-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-content,
  .contact-info {
    padding-right: 0;
  }

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

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

  .floating-card {
    display: none;
  }
}

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

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

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

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

  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Animation utilities */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.6s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.6s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Ripple effect styles */
.btn,
.submit-btn {
  position: relative;
  overflow: hidden;
}

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: ripple-animation 0.6s linear;
  pointer-events: none;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}