/* ===== Global Styles ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f8f9fa;
  overflow-x: hidden;
}

/* ===== Color Scheme ===== */
:root {
  --primary: #6366f1;
  --secondary: #ec4899;
  --accent: #f59e0b;
  --dark: #1f2937;
  --light: #f3f4f6;
  --white: #ffffff;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
}

/* ===== Navigation ===== */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 2rem;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

nav.scrolled {
  padding: 0.5rem 2rem;
  background: rgba(255, 255, 255, 0.98);
}

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

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -1px;
  transition: all 0.3s ease;
}

.logo:hover {
  color: var(--secondary);
  transform: scale(1.05);
}

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

nav a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 600;
  position: relative;
  transition: all 0.3s ease;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.3s ease;
}

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

nav a:hover::after {
  width: 100%;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--dark);
}

h1 {
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.8rem;
}

p {
  margin-bottom: 1rem;
  color: #666;
  font-size: 1.05rem;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 0.9rem 2rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

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

.btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary), var(--accent));
}

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

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

/* ===== Parallax Section ===== */
.parallax-section {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.parallax-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 120%;
  background-size: cover;
  background-position: center;
  will-change: transform;
  z-index: -1;
}

.parallax-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 0;
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  z-index: -2;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: float 6s ease-in-out infinite;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: float 8s ease-in-out infinite;
}

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

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
  animation: slideInUp 1s ease;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
  color: white;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero .tagline {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero .cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

/* ===== Animations ===== */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px rgba(99, 102, 241, 0.5); }
  50% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.8); }
}

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

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

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

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

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

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

/* ===== Services Section ===== */
.services {
  padding: 6rem 2rem;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 0;
  width: 100%;
  height: 100px;
  background: white;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 20%);
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.section-title h2 {
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.service-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  left: 100%;
}

.service-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  animation: pulse 2s ease-in-out infinite;
}

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

.service-card p {
  margin-bottom: 1rem;
  color: #666;
}

/* ===== About Section ===== */
.about {
  padding: 6rem 2rem;
  background: white;
  position: relative;
}

.about-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h2 {
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.about-features {
  list-style: none;
  margin: 2rem 0;
}

.about-features li {
  padding: 0.8rem 0;
  border-bottom: 1px solid #eee;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.about-features li::before {
  content: '✓';
  color: var(--secondary);
  font-weight: bold;
  font-size: 1.3rem;
}

.about-image {
  position: relative;
  height: 400px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 15px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 5rem;
}

/* ===== Portfolio Section ===== */
.portfolio {
  padding: 6rem 2rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
}

.portfolio::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: 0;
  width: 100%;
  height: 100px;
  background: white;
  clip-path: polygon(0 20%, 100% 0, 100% 100%, 0 100%);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.portfolio-item {
  position: relative;
  height: 300px;
  background: white;
  border-radius: 15px;
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.portfolio-item-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  text-align: center;
  padding: 2rem;
}

.portfolio-item:hover {
  transform: scale(1.05) rotateY(5deg);
  box-shadow: var(--shadow-lg);
}

.portfolio-item h3 {
  color: white;
  margin-bottom: 0.5rem;
}

.portfolio-item p {
  color: rgba(255, 255, 255, 0.9);
}

/* ===== Contact Section ===== */
.contact {
  padding: 6rem 2rem;
  background: var(--light);
  position: relative;
}

.contact-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info {
  padding: 2rem;
}

.contact-info h3 {
  color: var(--primary);
  margin-bottom: 1.5rem;
}

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

.info-icon {
  font-size: 1.5rem;
  color: var(--secondary);
  margin-top: 0.3rem;
}

.contact-form {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
}

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

label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--dark);
  font-weight: 600;
}

input, textarea, select {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  transition: all 0.3s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-submit {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===== Footer ===== */
footer {
  background: var(--dark);
  color: white;
  padding: 3rem 2rem;
  text-align: center;
}

footer p {
  color: #999;
  margin-bottom: 0.5rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.footer-links a {
  color: #999;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}

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

/* ===== Scroll to Top Button ===== */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  z-index: 999;
}

.scroll-to-top.show {
  display: flex;
}

.scroll-to-top:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  nav ul {
    display: none;
  }

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

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

  .about-image {
    height: 250px;
  }

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

  .cta-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  nav {
    padding: 0.8rem 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .services,
  .about,
  .contact {
    padding: 4rem 1rem;
  }
}