/* Modern 3D Personal Portfolio Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-primary: #070a12;
  --bg-secondary: #0d1322;
  --bg-surface: rgba(18, 26, 44, 0.7);
  --bg-surface-hover: rgba(26, 38, 64, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(99, 102, 241, 0.35);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-faint: #64748b;
  
  --accent-primary: #6366f1;
  --accent-glow: #818cf8;
  --accent-teal: #14b8a6;
  --accent-cyan: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --shadow-subtle: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px -5px rgba(99, 102, 241, 0.3);
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* 3D WebGL Canvas Layer */
#webgl-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

/* Foreground Content */
.app-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Glassmorphic Navbar */
.navbar {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 20px;
  height: 56px;
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-subtle);
  width: calc(100% - 40px);
  max-width: 980px;
}

.nav-brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--text-main);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-brand .brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  flex-shrink: 0;
}

.nav-brand .brand-name {
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-smooth);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  display: inline-block;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-cta {
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 14px;
  height: 34px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  border: 1px solid transparent;
}

.nav-cta-linkedin {
  background: rgba(10, 102, 194, 0.18);
  color: #60a5fa;
  border-color: rgba(96, 165, 250, 0.3);
}

.nav-cta-linkedin:hover {
  background: rgba(10, 102, 194, 0.35);
  border-color: #60a5fa;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 0 16px rgba(10, 102, 194, 0.4);
}

.nav-cta-github {
  background: rgba(255, 255, 255, 0.06);
  color: #f8fafc;
  border-color: var(--border-subtle);
}

.nav-cta-github:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff;
  transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 140px 0 80px;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-teal);
  background: rgba(20, 184, 166, 0.1);
  border: 1px solid rgba(20, 184, 166, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 24px;
}

.badge-tag .pulse-circle {
  width: 6px;
  height: 6px;
  background: var(--accent-teal);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-teal);
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-title .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 36px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  background: var(--accent-gradient);
  color: #fff;
  font-weight: 600;
  font-size: 0.98rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  box-shadow: var(--shadow-glow);
  transition: var(--transition-smooth);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  font-weight: 600;
  font-size: 0.98rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.btn-secondary:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

/* Sections Common */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  margin-bottom: 56px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-glow);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
}

/* About Layout */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: center;
}

.about-card-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
}

.avatar-wrapper {
  position: relative;
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1/1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.25);
  border: 2px solid var(--border-accent);
}

.about-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: brightness(0.95) contrast(1.05);
  transition: var(--transition-smooth);
}

.about-card-visual:hover .about-img {
  transform: scale(1.04);
}

.avatar-badge {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 6px;
}

.about-info p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 20px;
}

.credentials-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 24px;
}

.credential-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.credential-badge:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--accent-glow);
  color: #fff;
}

.credential-badge i {
  color: var(--accent-cyan);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.stat-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  backdrop-filter: blur(12px);
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Skills Grid */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.skill-category-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(16px);
  transition: var(--transition-smooth);
}

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

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.skill-category-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-glow);
  font-size: 1.25rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  transition: var(--transition-smooth);
}

.tech-tag:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--accent-glow);
  color: #fff;
}

/* Experience & Career Timeline */
.timeline-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
}

.timeline-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(16px);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.timeline-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-gradient);
  opacity: 0;
  transition: var(--transition-smooth);
}

.timeline-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.timeline-card:hover::before {
  opacity: 1;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 16px;
}

.timeline-company-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.company-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.timeline-role {
  font-size: 1.05rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-top: 4px;
}

.timeline-period {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
}

.timeline-body {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.7;
}

.timeline-body ul {
  list-style: none;
  padding-left: 0;
  margin-top: 12px;
}

.timeline-body li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
}

.timeline-body li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-teal);
  font-size: 1.1rem;
  line-height: 1.4;
}

/* Contact & Social Section */
.contact-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  backdrop-filter: blur(20px);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

/* Floating Codea AI Chat Widget */
.codea-float-trigger {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 990;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--accent-gradient);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4), 0 0 20px rgba(6, 182, 212, 0.3);
  transition: var(--transition-smooth);
}

.codea-float-trigger:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 35px rgba(99, 102, 241, 0.6), 0 0 30px rgba(6, 182, 212, 0.5);
}

.codea-float-trigger .pulse-circle {
  width: 7px;
  height: 7px;
  background: #34d399;
  border-radius: 50%;
  box-shadow: 0 0 8px #34d399;
}

.codea-modal-window {
  position: fixed;
  bottom: 84px;
  right: 24px;
  width: 440px;
  max-width: calc(100vw - 32px);
  height: 640px;
  max-height: calc(100vh - 105px);
  background: rgba(10, 15, 28, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px -10px rgba(0, 0, 0, 0.8), 0 0 30px rgba(99, 102, 241, 0.25);
  z-index: 995;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.codea-modal-window.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.codea-window-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(14, 21, 38, 0.9);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.window-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.window-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.window-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-main);
  font-weight: 600;
}

.window-title i {
  color: var(--accent-cyan);
}

.window-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.window-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent-teal);
  background: rgba(20, 184, 166, 0.12);
  border: 1px solid rgba(20, 184, 166, 0.3);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.codea-popout-btn,
.codea-close-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.8rem;
  transition: var(--transition-smooth);
}

.codea-popout-btn:hover {
  background: rgba(99, 102, 241, 0.25);
  border-color: var(--accent-glow);
  color: #fff;
}

.codea-close-btn:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: #ef4444;
  color: #fff;
}

.codea-iframe-wrapper {
  position: relative;
  width: 100%;
  flex-grow: 1;
  background: #070a12;
}

.codea-iframe-wrapper iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

@media (max-width: 600px) {
  .codea-float-trigger span:not(.pulse-circle) {
    display: none;
  }
  .codea-float-trigger {
    padding: 12px 14px;
    border-radius: 50%;
  }
  .codea-modal-window {
    right: 16px;
    bottom: 80px;
    width: calc(100vw - 32px);
    height: 75vh;
  }
}

.social-links-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.social-btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--accent-glow);
  transform: translateY(-2px);
  color: #fff;
}

.social-btn img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

/* Footer */
footer {
  padding: 48px 0;
  text-align: center;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-faint);
  font-size: 0.88rem;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .navbar {
    padding: 10px 18px;
  }
  
  .nav-links {
    display: none;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
}