/* CSS Custom Properties */
:root {
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #f093fb;
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  --text-light: #718096;
  --bg-primary: #ffffff;
  --bg-secondary: #f7fafc;
  --bg-dark: #1a202c;
  --border-color: #e2e8f0;
  --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f4f4f4;
  overflow-x: hidden;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.2;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 1rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-light);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

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

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

/* Navigation */
nav {
  background: #333;
  color: white;
  padding: 1rem 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

nav a {
  color: white;
  text-decoration: none;
  transition: color 0.3s;
}

nav a:hover {
  color: #4caf50;
}

/* Hero Section */
.hero {
  background: white;
  padding: 100px 20px 50px;
  text-align: center;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-pic {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  margin-bottom: 2rem;
  border: 5px solid #4caf50;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #333;
}

.subtitle {
  font-size: 1.2rem;
  color: #4caf50;
  margin-bottom: 1rem;
  font-weight: bold;
}

.social-links {
  margin-top: 2rem;
}

.social-links a {
  display: inline-block;
  margin: 0 1rem;
  padding: 10px 20px;
  background: #4caf50;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  transition: background 0.3s;
}

.social-links a:hover {
  background: #45a049;
}

/* Sections */
section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 50px 20px;
}

section h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
  color: #333;
}

/* About Section */
#about {
  background: white;
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.personal-info p {
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stat-box {
  background: #f9f9f9;
  padding: 1.5rem;
  text-align: center;
  border-radius: 10px;
  border-left: 4px solid #4caf50;
}

.stat-box h3 {
  font-size: 2rem;
  color: #4caf50;
  margin-bottom: 0.5rem;
}

/* Skills Section */
.skills-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.skill-category {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.skill-category h3 {
  margin-bottom: 1rem;
  color: #4caf50;
}

.skill-list {
  list-style: none;
}

.skill-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #eee;
}

.skill-list li:last-child {
  border-bottom: none;
}

/* Projects Section */
#projects {
  background: white;
}

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

.project-card {
  background: #f9f9f9;
  padding: 2rem;
  border-radius: 10px;
  border-left: 4px solid #4caf50;
  transition: transform 0.3s;
}

.project-card:hover {
  transform: translateY(-5px);
}

.project-card h3 {
  color: #333;
  margin-bottom: 1rem;
}

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

.tech-used {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-used span {
  background: #4caf50;
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  font-size: 0.8rem;
}

/* Contact Section */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.contact-info h3 {
  color: #4caf50;
  margin-bottom: 1rem;
}

.contact-form {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 1rem;
  margin-bottom: 1rem;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-family: inherit;
}

.contact-form button {
  background: #4caf50;
  color: white;
  padding: 1rem 2rem;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s;
}

.contact-form button:hover {
  background: #45a049;
}

/* Footer */
footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 2rem;
}

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

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: 1rem;
  }

  nav ul {
    gap: 1rem;
  }

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

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

  .stats {
    flex-direction: row;
    justify-content: space-around;
  }

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

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

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

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .profile-img {
    width: 200px;
    height: 200px;
  }

  .floating-element {
    width: 40px;
    height: 40px;
  }

  .floating-element i {
    font-size: 1rem;
  }
}

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

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

/* Loading states */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

/* Success states */
.success {
  border-color: #38a169 !important;
  background-color: #f0fff4 !important;
}

.error {
  border-color: #e53e3e !important;
  background-color: #fed7d7 !important;
}