@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700;800&display=swap');

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

:root {
  --bg: #020617;
  --bg-darker: #01040f;
  --bg-glass: rgba(15, 23, 42, 0.45);
  --bg-glass-hover: rgba(30, 41, 59, 0.65);
  
  --accent: #3b82f6;
  --accent-2: #10b981;
  --accent-3: #8b5cf6;
  
  --text: #f8fafc;
  --muted: #94a3b8;
  --subtle: #475569;
  
  --border: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(59, 130, 246, 0.3);
  
  --radius: 20px;
  --t: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

html { scroll-behavior: smooth; overflow-x: hidden; }
body { 
  font-family: 'Inter', sans-serif; 
  background: var(--bg); 
  color: var(--text); 
  line-height: 1.7; 
  overflow-x: hidden; 
  -webkit-font-smoothing: antialiased; 
}
h1, h2, h3, h4, .nav-logo, .hero-tag, .metrics-val { font-family: 'Space Grotesk', sans-serif; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--subtle); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }
::selection { background: rgba(59, 130, 246, 0.3); }

/* Topo Hero & Film Grain */
#topo-canvas {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
.film-grain {
  position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
  pointer-events: none; z-index: 100; opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* CSS 3D Laptop Animation */
.hc-container {
  position: absolute;
  top: 0; right: 5vw;
  width: 45vw; height: 100vh;
  display: flex; align-items: center; justify-content: center;
  perspective: 2000px;
  z-index: 1;
  pointer-events: none;
}
.hc-3d {
  position: relative;
  width: 380px; height: 260px;
  transform-style: preserve-3d;
  transform: rotateX(55deg) rotateZ(-25deg);
  will-change: transform;
}
/* Base */
.hc-base {
  position: absolute;
  inset: 0;
  background: #0f172a;
  border-radius: 12px;
  border: 1px solid #334155;
  box-shadow: -15px 25px 40px rgba(0,0,0,0.8), inset 0 0 10px rgba(255,255,255,0.05);
  transform-style: preserve-3d;
  transform: translateZ(0); 
}
.hc-keyboard {
  position: absolute;
  top: 12%; left: 6%; right: 6%; bottom: 38%;
  background: #020617;
  border-radius: 6px;
  box-shadow: inset 0 2px 10px rgba(0,0,0,1);
  background-image: 
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 20px 20px;
}
.hc-trackpad {
  position: absolute;
  bottom: 8%; left: 35%; right: 35%; height: 22%;
  background: #1e293b;
  border-radius: 6px;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.5);
}

/* Lid */
.hc-lid {
  position: absolute;
  bottom: 100%; left: 0; right: 0; height: 260px;
  background: #0f172a;
  border-radius: 12px 12px 0 0;
  border: 1px solid #334155;
  border-bottom: 2px solid #1e293b;
  transform-origin: bottom center;
  transform: rotateX(-75deg); 
  transform-style: preserve-3d;
  box-shadow: 0 -10px 30px rgba(0,0,0,0.8);
  will-change: transform;
}
.hc-screen {
  position: absolute;
  inset: 12px;
  background: #020617;
  border-radius: 6px;
  border: 2px solid #000;
  box-shadow: inset 0 0 20px rgba(0,0,0,1);
  overflow: hidden;
  display: flex; align-items: flex-start; justify-content: flex-start;
  padding: 1.5rem;
  transform: translateZ(1px);
}
.hc-code {
  color: #f8fafc;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.95rem;
  line-height: 1.7;
}
.hc-keyword { color: #f43f5e; }
.hc-string { color: #10b981; }
.hc-glare {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
  pointer-events: none;
}

@media (max-width: 900px) {
  .hc-container {
    width: 100%; right: 0; opacity: 0.25;
  }
}

/* Gravity Skills */
.gravity-skill {
  position: absolute;
  top: 0; left: 0;
  padding: 10px 20px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(59, 130, 246, 0.5);
  border-radius: 12px;
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  user-select: none;
  cursor: grab;
  backdrop-filter: blur(10px);
  will-change: transform;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
  transition: border-color 0.3s;
}
.gravity-skill:hover { border-color: var(--accent-2); }
.gravity-skill:active { cursor: grabbing; }

/* Navbar */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
  transition: background var(--t), border-color var(--t), backdrop-filter var(--t);
  border-bottom: 1px solid transparent;
}
nav.scrolled {
  background: rgba(2, 6, 23, 0.7);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-color: var(--border);
}
.nav-logo { font-size: 1.25rem; font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: -0.5px; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 2.5rem; list-style: none; align-items: center; }
.nav-links a { font-size: 0.95rem; font-weight: 500; color: var(--muted); text-decoration: none; transition: color var(--t); }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-cta { padding: 0.5rem 1.2rem; background: rgba(255,255,255,0.05); border-radius: 8px; border: 1px solid var(--border); }
.nav-cta:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; z-index: 1010; }
.nav-hamburger span { display: block; width: 24px; height: 2px; background: var(--text); transition: 0.3s; }
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
#hero {
  position: relative; z-index: 1; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 8rem 2rem 5rem; text-align: center;
}
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem;
  color: var(--accent-2); border: 1px solid rgba(16,185,129,0.3);
  padding: 6px 16px; border-radius: 99px; margin-bottom: 2rem;
  background: rgba(16,185,129,0.1); backdrop-filter: blur(8px);
}
.hero-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); animation: pulse 2s infinite; }
.hero-h1 { font-size: clamp(3.2rem, 8vw, 5.5rem); font-weight: 800; line-height: 1.1; letter-spacing: -2px; margin-bottom: 1.5rem; }
.gradient-text { background: linear-gradient(135deg, var(--accent), var(--accent-3), var(--accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--muted); max-width: 600px; margin: 0 auto 2.5rem; line-height: 1.6; }
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  padding: 0.8rem 2.2rem; background: var(--text); color: var(--bg);
  font-weight: 600; font-size: 0.95rem; border-radius: 12px;
  text-decoration: none; transition: transform var(--t), box-shadow var(--t);
  box-shadow: 0 0 20px rgba(255,255,255,0.15);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(255,255,255,0.25); }
.btn-outline {
  padding: 0.8rem 2.2rem; background: var(--bg-glass); color: var(--text);
  font-weight: 600; font-size: 0.95rem; border-radius: 12px; border: 1px solid var(--border);
  text-decoration: none; backdrop-filter: blur(12px); transition: background var(--t), border-color var(--t);
}
.btn-outline:hover { background: var(--bg-glass-hover); border-color: rgba(255,255,255,0.25); }
.hero-social { display: flex; gap: 1rem; justify-content: center; margin-top: 3.5rem; }
.hero-social a {
  display: flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--bg-glass); border: 1px solid var(--border);
  color: var(--text); font-size: 1.2rem; transition: all var(--t);
  backdrop-filter: blur(10px);
}
.hero-social a:hover { background: var(--text); color: var(--bg); transform: translateY(-3px) scale(1.05); }

/* Global Section */
section { position: relative; z-index: 1; padding: clamp(5rem, 10vw, 8rem) clamp(1.5rem, 5vw, 4rem); }
.section-wrapper { max-width: 1200px; margin: 0 auto; }
.section-label { font-size: 0.85rem; color: var(--accent); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 0.5rem; font-weight: 600; }
.section-title { font-size: clamp(2rem, 4.5vw, 3.5rem); font-weight: 800; letter-spacing: -1px; margin-bottom: 3.5rem; }

/* Bento Box Layout */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(220px, auto);
  gap: 1.5rem;
}
.bento-card {
  background: var(--bg-glass); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2.2rem;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  transition: border-color var(--t), background var(--t);
  display: flex; flex-direction: column; justify-content: center;
  overflow: hidden; position: relative;
}
.bento-card:hover { border-color: var(--border-glow); background: rgba(30, 41, 59, 0.75); }
.bento-bio { grid-column: span 2; grid-row: span 2; justify-content: flex-start; }
.bento-bio h3 { font-size: 2rem; margin-bottom: 1.2rem; color: var(--text); }
.bento-bio p { color: var(--muted); font-size: 1.1rem; margin-bottom: 1.2rem; line-height: 1.7; }
.bento-bio p strong { color: var(--text); font-weight: 600; }

.bento-metrics { grid-column: span 1; grid-row: span 1; text-align: center; background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(139,92,246,0.1)); }
.metrics-val { font-size: 4rem; font-weight: 800; line-height: 1; margin-bottom: 0.5rem; background: linear-gradient(to right, var(--accent), var(--accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.metrics-label { font-size: 0.95rem; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }

.bento-location { grid-column: span 1; grid-row: span 1; text-align: center; }
.bento-location i { font-size: 3rem; color: var(--accent-3); margin-bottom: 1.2rem; }
.bento-location span { font-weight: 600; font-size: 1.2rem; color: var(--text); display: block; }

.bento-skill { grid-column: span 1; grid-row: span 1; justify-content: flex-start; }
.skill-icon { font-size: 2rem; margin-bottom: 1.2rem; color: var(--accent); }
.bento-skill h4 { font-size: 1.2rem; margin-bottom: 1rem; font-family: 'Inter', sans-serif; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.skill-tag { padding: 6px 12px; background: rgba(255,255,255,0.05); border: 1px solid var(--border); border-radius: 8px; font-size: 0.85rem; color: var(--muted); transition: all 0.2s; }
.skill-tag:hover { border-color: var(--accent); color: var(--text); background: rgba(59,130,246,0.1); }

.bento-col-span-2 { grid-column: span 2; }

/* Experience Accordion (Interactive Image Accordion) */
.exp-accordion {
  display: flex;
  gap: 1.5rem;
  width: 100%;
  height: 480px;
}
.exp-panel {
  flex: 1;
  position: relative;
  border-radius: 24px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: flex 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  cursor: pointer;
}
.exp-panel:hover, .exp-panel.active {
  flex: 5;
}
.exp-glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.3;
  transition: opacity 0.6s ease;
}
.exp-panel:hover .exp-glow, .exp-panel.active .exp-glow {
  opacity: 1;
}

/* Collapsed View */
.exp-collapsed-view {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  z-index: 2;
  transition: opacity 0.4s ease;
  opacity: 1;
}
.exp-panel:hover .exp-collapsed-view, .exp-panel.active .exp-collapsed-view {
  opacity: 0;
  pointer-events: none;
}
.exp-icon-img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  border-radius: 8px;
  filter: drop-shadow(0 4px 10px rgba(0,0,0,0.5));
}
.exp-vert-title {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
  white-space: nowrap;
  color: var(--text);
}

/* Expanded View */
.exp-expanded-view {
  position: absolute;
  inset: 0;
  padding: 3rem;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease, transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  transform: translateY(20px);
}
.exp-panel:hover .exp-expanded-view, .exp-panel.active .exp-expanded-view {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  transition-delay: 0.15s;
}
.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 1.5rem;
}
.exp-company {
  font-size: 2.2rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  margin-bottom: 0.3rem;
  white-space: nowrap;
}
.exp-role {
  font-size: 1.2rem;
  color: var(--accent);
}
.exp-date {
  font-size: 1rem;
  color: var(--text);
  font-family: 'Space Grotesk';
  padding: 6px 14px;
  background: rgba(255,255,255,0.08);
  border-radius: 99px;
  white-space: nowrap;
}
.exp-details p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 90%;
}
.tl-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.tl-badge { font-size: 0.85rem; padding: 6px 14px; border-radius: 8px; background: rgba(59,130,246,0.1); color: #93c5fd; border: 1px solid rgba(59,130,246,0.2); font-family: 'Space Grotesk'; }

/* Projects Grid */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 2rem; }
.project-card {
  background: var(--bg-glass); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 2.5rem; backdrop-filter: blur(16px); display: flex; flex-direction: column;
  transition: all var(--t); position: relative; overflow: hidden;
}
.project-card:hover { border-color: var(--border-glow); }
.project-card.featured {
  grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center;
  padding: 3rem; background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(16,185,129,0.05));
  border-color: rgba(59,130,246,0.25);
}
.feat-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--accent-2); margin-bottom: 1.2rem; font-weight: 600; background: rgba(16,185,129,0.1); padding: 6px 14px; border-radius: 99px; }
.feat-badge .dot { width: 6px; height: 6px; background: var(--accent-2); border-radius: 50%; box-shadow: 0 0 8px var(--accent-2); }
.project-icon { font-size: 2.8rem; margin-bottom: 1.5rem; color: var(--text); }
.project-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; font-family: 'Space Grotesk'; }
.featured .project-title { font-size: 2.5rem; margin-bottom: 1.2rem; }
.project-desc { color: var(--muted); font-size: 1rem; margin-bottom: 2rem; flex-grow: 1; line-height: 1.6; }
.project-links { margin-top: auto; display: flex; gap: 1rem; }
.btn-glass { padding: 0.7rem 1.4rem; background: rgba(255,255,255,0.05); border: 1px solid var(--border); border-radius: 10px; color: var(--text); text-decoration: none; font-size: 0.95rem; font-weight: 500; transition: all var(--t); display: inline-flex; align-items: center; gap: 8px; }
.btn-glass:hover { background: var(--text); border-color: var(--text); color: var(--bg); }
.featured-visual { border-radius: 20px; overflow: hidden; border: 1px solid rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center; height: 100%; min-height: 250px; background: var(--bg-darker); padding: 3rem; position: relative; }
.app-mock { text-align: center; }
.app-mock h4 { font-size: 3rem; background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.app-mock p { color: var(--muted); margin-top: 0.8rem; font-size: 1.1rem; }
.app-badges { margin-top: 1.5rem; display: flex; gap: 10px; justify-content: center; }
.app-badge { padding: 6px 14px; background: rgba(255,255,255,0.05); border: 1px solid var(--border); border-radius: 99px; font-size: 0.85rem; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.contact-card { background: var(--bg-glass); border: 1px solid var(--border); border-radius: 20px; padding: 2.5rem; text-align: center; text-decoration: none; display: flex; flex-direction: column; align-items: center; transition: all var(--t); backdrop-filter: blur(12px); }
.contact-card:hover { background: rgba(255,255,255,0.08); border-color: var(--border-glow); transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.contact-card i { font-size: 2.5rem; color: var(--text); margin-bottom: 1.5rem; transition: color var(--t); }
.contact-card:hover i { color: var(--accent); }
.contact-card h4 { color: var(--text); font-size: 1.2rem; margin-bottom: 0.5rem; font-family: 'Space Grotesk'; }
.contact-card p { color: var(--muted); font-size: 1rem; }

/* Footer */
footer { padding: 3rem 2rem; text-align: center; border-top: 1px solid var(--border); background: var(--bg-darker); position: relative; z-index: 1; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 0 auto; flex-wrap: wrap; gap: 1.5rem; }
.footer-text { color: var(--muted); font-size: 0.95rem; }
.footer-links { display: flex; gap: 1.8rem; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 0.95rem; transition: color var(--t); font-weight: 500; }
.footer-links a:hover { color: var(--text); }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* Responsive */
@media (max-width: 1024px) {
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-bio { grid-column: span 2; }
  .bento-col-span-2 { grid-column: span 2; }
  .project-card.featured { grid-template-columns: 1fr; gap: 2.5rem; padding: 2.5rem; }
  .featured-visual { padding: 2.5rem; min-height: 200px; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 72px; left: 0; width: 100%; background: rgba(2,6,23,0.98);
    flex-direction: column; padding: 2.5rem; backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border); transform: translateY(-100%); opacity: 0; pointer-events: none; transition: all 0.4s ease;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-hamburger { display: flex; }
  
  .bento-grid { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .bento-bio { grid-column: 1; grid-row: auto; }
  .bento-metrics, .bento-location, .bento-skill, .bento-col-span-2 { grid-column: 1; grid-row: auto; }
  
  .exp-accordion { flex-direction: column; height: 800px; gap: 1rem; }
  .exp-panel:hover, .exp-panel.active { flex: 4; }
  .exp-collapsed-view { flex-direction: row; gap: 1rem; }
  .exp-vert-title { writing-mode: horizontal-tb; transform: none; }
  .exp-expanded-view { padding: 1.5rem; }
  .exp-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .exp-company { font-size: 1.8rem; }
  .exp-date { text-align: left; }
  
  .hero-h1 { font-size: clamp(2.8rem, 10vw, 3.8rem); }
  .hero-btns { flex-direction: column; width: 100%; max-width: 320px; margin: 0 auto; }
  .btn-primary, .btn-outline { text-align: center; }
  
  .footer-inner { flex-direction: column; justify-content: center; gap: 1.5rem; }
}