/* ==========================================================================
   Vibe Coding Portfolio - Style System
   Theme: Cyberpunk Glassmorphism & Cosmic Deep Space
   ========================================================================== */

:root {
  --bg-primary: #080b11;
  --bg-secondary: #0f1523;
  --bg-glass: rgba(15, 22, 36, 0.65);
  --bg-glass-hover: rgba(22, 33, 54, 0.8);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(99, 102, 241, 0.3);

  --accent-cyan: #06b6d4;
  --accent-violet: #8b5cf6;
  --accent-fuchsia: #d946ef;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-glow: 0 0 25px rgba(139, 92, 246, 0.25);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --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-body);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Three.js Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

/* Background Ambient Lighting */
.ambient-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 1;
  opacity: 0.15;
}
.glow-top-left {
  top: -150px;
  left: -150px;
  background: radial-gradient(circle, var(--accent-cyan), transparent);
}
.glow-bottom-right {
  bottom: -200px;
  right: -200px;
  background: radial-gradient(circle, var(--accent-violet), var(--accent-fuchsia), transparent);
}

/* Layout Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* Typography & Utilities */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #a855f7 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-subtle {
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Glassmorphism Card Style */
.glass-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
}

.glass-panel:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card), 0 0 20px rgba(99, 102, 241, 0.15);
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.navbar {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 1100px;
  height: 64px;
  z-index: 100;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: var(--radius-full);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.nav-links a:hover {
  color: #fff;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--accent-emerald);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Floating 3D Particle Controls */
.particle-controls {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.particle-btn {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  padding: 10px 16px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.particle-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.3);
}

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

.hero-content {
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.3);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: #c4b5fd;
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}

.hero-title {
  font-size: clamp(2.6rem, 5.5vw, 4.4rem);
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 660px;
  margin: 0 auto 36px;
  font-weight: 400;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-monitor {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.25), rgba(6, 182, 212, 0.3));
  border: 1px solid rgba(16, 185, 129, 0.6);
  color: #ffffff;
  box-shadow: 0 0 25px rgba(16, 185, 129, 0.35);
  font-weight: 700;
  backdrop-filter: blur(12px);
}

.btn-monitor:hover {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.4), rgba(6, 182, 212, 0.5));
  border-color: #10b981;
  box-shadow: 0 0 35px rgba(16, 185, 129, 0.65);
  transform: translateY(-3px);
  color: #ffffff;
}

.btn-monitor .pulse-icon {
  color: var(--accent-emerald);
  animation: pulse-dot 1.8s infinite;
  font-size: 0.9rem;
}

.btn-primary {
  background: linear-gradient(135deg, #06b6d4, #8b5cf6);
  color: #ffffff;
  box-shadow: 0 0 25px rgba(6, 182, 212, 0.4);
  border: none;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 35px rgba(139, 92, 246, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
}

/* ==========================================================================
   Metrics & Philosophy Section
   ========================================================================== */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

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

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.metric-card {
  padding: 32px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.metric-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: inline-block;
}

.metric-value {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 8px;
  font-family: var(--font-heading);
}

.metric-label {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Vibe Projects Showcase
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.project-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
  opacity: 0;
  transition: var(--transition-smooth);
}

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

.project-card:hover {
  transform: translateY(-6px);
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.project-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-full);
  color: var(--text-muted);
}

.project-icon {
  font-size: 1.8rem;
}

.project-title {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.tag {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.08);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.2);
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-glass);
}

.project-status {
  font-size: 0.82rem;
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  gap: 6px;
}

.project-link {
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-smooth);
}

.project-link:hover {
  color: var(--accent-cyan);
  transform: translateX(3px);
}

/* ==========================================================================
   Tech Ecosystem (Vibe Stack)
   ========================================================================== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.stack-category {
  padding: 26px;
}

.category-title {
  font-size: 1.15rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #e2e8f0;
}

.category-icon {
  font-size: 1.3rem;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-main);
  transition: var(--transition-smooth);
}

.skill-pill:hover {
  background: rgba(139, 92, 246, 0.15);
  border-color: rgba(139, 92, 246, 0.4);
  color: #fff;
  transform: translateY(-2px);
}

/* ==========================================================================
   Interactive Terminal Console (Easter Egg)
   ========================================================================== */
.terminal-wrapper {
  max-width: 800px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px);
}

.terminal-header {
  background: rgba(255, 255, 255, 0.03);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-glass);
}

.terminal-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #e5e7eb;
  min-height: 220px;
  max-height: 340px;
  overflow-y: auto;
}

.terminal-output {
  margin-bottom: 12px;
  line-height: 1.6;
}

.terminal-prompt-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.terminal-prompt-symbol {
  color: var(--accent-cyan);
}

.terminal-input {
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #fff;
  flex: 1;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--border-glass);
  text-align: center;
  position: relative;
  z-index: 2;
  margin-top: 60px;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-copy {
  color: var(--text-dim);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 768px) {
  .navbar {
    width: calc(100% - 24px);
    top: 10px;
    padding: 0 16px;
  }
  .nav-links {
    display: none;
  }
  .hero-section {
    padding: 120px 0 60px;
  }
  .particle-controls {
    bottom: 16px;
    right: 16px;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
}