/* Modern Portfolio Theme - Clean & Professional */

:root {
  --primary-color: #2563eb;
  --secondary-color: #1e40af;
  --accent-color: #3b82f6;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-accent: #eff6ff;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  font-size: 16px;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: var(--transition);
}

nav.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

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

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

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

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

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
}

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

.content {
  margin-top: 80px;
  min-height: calc(100vh - 80px);
  padding: 3rem 0;
}

/* Hero Section */
.hero {
  display: flex;
  align-items: center;
  gap: 4rem;
  padding: 4rem 0;
  min-height: calc(100vh - 80px);
}

.hero-content {
  flex: 1;
}

.hero-image {
  flex: 0 0 300px;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.hero-image img:hover {
  transform: scale(1.05);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  line-height: 1.2;
}

.hero .subtitle {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.8;
}

/* Social Links */
.social-links {
  display: flex;
  gap: 1.5rem;
  margin-top: 2rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.125rem;
  transition: var(--transition);
}

.social-links a:hover {
  color: var(--primary-color);
  transform: translateY(-2px);
}

.social-links i {
  font-size: 1.5rem;
}

/* Section Headings */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.project-card {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.project-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--primary-color);
}

.project-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.project-card a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

.project-card a:hover {
  text-decoration: underline;
}

/* Projects List */
.projects-list {
  list-style: none;
  margin-top: 2rem;
}

.projects-list li {
  background-color: var(--bg-secondary);
  border-left: 4px solid var(--primary-color);
  padding: 1.5rem;
  margin-bottom: 1rem;
  border-radius: 8px;
  transition: var(--transition);
}

.projects-list li:hover {
  background-color: var(--bg-accent);
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.projects-list a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.125rem;
}

.projects-list a:hover {
  color: var(--secondary-color);
}

/* Contact Section */
.contact-info {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  padding: 3rem;
  margin-top: 2rem;
  max-width: 600px;
}

.contact-info p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 2;
}

.contact-info strong {
  color: var(--text-primary);
  font-weight: 600;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.contact-links a {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.125rem;
  padding: 0.75rem;
  border-radius: 8px;
  transition: var(--transition);
}

.contact-links a:hover {
  background-color: var(--bg-accent);
  color: var(--primary-color);
  transform: translateX(8px);
}

.contact-links i {
  font-size: 1.5rem;
  width: 30px;
  text-align: center;
}

/* Resume Section */
.resume-container {
  margin-top: 2rem;
}

.resume-download {
  display: inline-block;
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  margin-bottom: 2rem;
}

.resume-download:hover {
  background-color: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.resume-embed {
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

/* Section Divider */
.section-divider {
  margin: 3rem 0;
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-color), transparent);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

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

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

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

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: white;
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-md);
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .hero {
    flex-direction: column-reverse;
    text-align: center;
    padding: 2rem 0;
  }

  .hero-image {
    flex: 0 0 200px;
  }

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

  .hero .subtitle {
    font-size: 1.25rem;
  }

  .social-links {
    justify-content: center;
  }

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

  .container {
    padding: 0 1rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* Utilities */
.text-center {
  text-align: center;
}

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

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