/* Modern Professional Portfolio CSS */

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

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #8b5cf6;
  --accent: #ec4899;
  --success: #10b981;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --text: #1e293b;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 6rem 0 4rem;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.1;
  background-image: 
    radial-gradient(circle at 20% 50%, white 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, white 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-name {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  animation: fadeInUp 0.6s ease;
}

.hero-title {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 1rem;
  opacity: 0.95;
  animation: fadeInUp 0.6s ease 0.1s backwards;
}

.hero-location {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.3s backwards;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.hero-link:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.hero-link svg {
  flex-shrink: 0;
}

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

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

.fade-in-delay-1 {
  animation: fadeInUp 0.6s ease 0.1s backwards;
}

.fade-in-delay-2 {
  animation: fadeInUp 0.6s ease 0.2s backwards;
}

.fade-in-delay-3 {
  animation: fadeInUp 0.6s ease 0.3s backwards;
}

.fade-in-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Sections */
.section {
  padding: 5rem 0;
}

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

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

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

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-text {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-light);
}

/* Experience Timeline */
.timeline {
  position: relative;
  padding-left: 3rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-bottom: 3rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -3.5rem;
  top: 0.5rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 4px var(--bg-alt);
  transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 8px rgba(99, 102, 241, 0.1);
}

.timeline-content {
  background: white;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.timeline-item:hover .timeline-content {
  box-shadow: var(--shadow-lg);
  transform: translateX(8px);
}

.timeline-role {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.timeline-company {
  font-size: 1.1rem;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.timeline-period {
  font-size: 0.95rem;
  color: var(--text-lighter);
  margin-bottom: 1rem;
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--bg-alt);
  border-radius: 20px;
}

.timeline-description {
  color: var(--text-light);
  line-height: 1.7;
  margin-top: 1rem;
}

/* Education Section */
.education {
  background: var(--bg-alt);
}

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

.education-card {
  background: white;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 4px solid var(--primary);
}

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

.education-school {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.education-degree {
  color: var(--text-light);
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.education-period {
  font-size: 0.9rem;
  color: var(--text-lighter);
  background: var(--bg-alt);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  display: inline-block;
}

/* Skills Section */
.skills-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.skill-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.skill-badge:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: var(--shadow-lg);
}

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

.footer p {
  opacity: 0.8;
  font-size: 0.95rem;
}

.heart {
  color: var(--accent);
  animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  10%, 30% {
    transform: scale(1.1);
  }
  20%, 40% {
    transform: scale(1);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  .hero {
    padding: 4rem 0 3rem;
  }

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

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

  .hero-links {
    gap: 0.75rem;
  }

  .hero-link {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }

  .section {
    padding: 3rem 0;
  }

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

  .timeline {
    padding-left: 2rem;
  }

  .timeline-dot {
    left: -2.5rem;
  }

  .timeline-content {
    padding: 1.5rem;
  }

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

  .about-text {
    font-size: 1.1rem;
  }
}

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

  .hero-title {
    font-size: 1.1rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .hero-links {
    flex-direction: column;
    align-items: stretch;
  }

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