/* Modern Portfolio Styles */
:root {
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --secondary-color: #8b5cf6;
  --accent-color: #06b6d4;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-accent: #f1f5f9;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

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

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

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

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
}

.logo-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

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

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

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

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding-top: 80px;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

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

.hero-text {
  animation: fadeInUp 1s ease-out;
}

.hero-greeting {
  display: block;
  color: var(--primary-color);
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.hero-name {
  display: block;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.highlight {
  color: var(--primary-color);
  font-weight: 600;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  cursor: pointer;
}

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

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

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

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

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 1s ease-out 0.3s both;
}

.hero-image {
  position: relative;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.hero-image:hover .profile-img {
  transform: scale(1.1);
}

.image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hero-image:hover .image-overlay {
  opacity: 0.2;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border: 2px solid var(--primary-color);
  border-top: none;
  border-right: none;
  transform: rotate(-45deg);
}

/* Section Styles */
section {
  padding: 5rem 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-number {
  color: var(--primary-color);
  font-size: 1.5rem;
}

/* About Section */
.about {
  background-color: var(--bg-secondary);
}

.about-content {
  max-width: 800px;
}

.about-text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.about-intro {
  margin-bottom: 1.5rem;
}

.text-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-bottom 0.3s ease;
}

.text-link:hover {
  border-bottom-color: var(--primary-color);
}

.skills-section {
  margin-top: 3rem;
}

.skills-section h3 {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.skill-category h4 {
  color: var(--primary-color);
  font-size: 1.1rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

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

.skill-category li {
  padding: 0.3rem 0;
  color: var(--text-secondary);
  position: relative;
  padding-left: 1rem;
}

.skill-category li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-size: 0.8rem;
}

/* Projects Section */
.projects {
  background-color: var(--bg-primary);
}

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

.project-card {
  background: white;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.project-card.featured {
  background: var(--gradient-primary);
  color: white;
}

.project-card.featured .project-title,
.project-card.featured .project-description {
  color: white;
}

.project-card.featured .tech-tag {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.project-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}

.project-links {
  display: flex;
  gap: 0.5rem;
}

.project-link {
  color: var(--primary-color);
  padding: 0.5rem;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.project-link:hover {
  background-color: var(--bg-accent);
  transform: scale(1.1);
}

.project-card.featured .project-link {
  color: white;
}

.project-card.featured .project-link:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

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

.tech-tag {
  background-color: var(--bg-accent);
  color: var(--text-secondary);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Contact Section */
.contact {
  background-color: var(--bg-secondary);
}

.contact-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 400px;
  margin: 0 auto;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: white;
  border-radius: 12px;
  text-decoration: none;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

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

.contact-icon {
  color: var(--primary-color);
  flex-shrink: 0;
}

.contact-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.contact-label {
  font-size: 0.9rem;
  color: var(--text-light);
  font-weight: 500;
}

.contact-value {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 600;
}

/* Footer */
.footer {
  background-color: var(--text-primary);
  color: white;
  padding: 2rem 0;
  text-align: center;
}

.footer p {
  color: rgba(255, 255, 255, 0.8);
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: white;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 2rem;
    transition: left 0.3s ease;
    box-shadow: var(--shadow-lg);
  }

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

  .nav-menu li {
    margin: 1rem 0;
  }

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

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

  .hero-image {
    width: 250px;
    height: 250px;
  }

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

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

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

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

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

  .nav-container {
    padding: 0 1rem;
  }

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

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

  .section-title {
    font-size: 1.8rem;
  }

  .project-card {
    padding: 1.5rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }