:root {
  --bg: #0a0a0b;
  --bg-elevated: #111113;
  --bg-card: #16161a;
  --surface: #1c1c21;
  --border: #27272a;
  --text: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99,102,241,0.15);
  --green: #22c55e;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.grain {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none; opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--accent); color: #fff;
  border-radius: 50px; font-weight: 600; font-size: 0.95rem;
  transition: var(--transition); border: none; cursor: pointer;
  box-shadow: 0 0 30px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 50px var(--accent-glow); }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: transparent; color: var(--text);
  border: 1px solid var(--border); border-radius: 50px;
  font-weight: 600; font-size: 0.95rem; transition: var(--transition); cursor: pointer;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ── Header ── */
.header {
  position: fixed; top: 0; width: 100%; z-index: 1000;
  padding: 16px 0; transition: var(--transition);
  background: rgba(10,10,11,0.8); backdrop-filter: blur(20px); border-bottom: 1px solid transparent;
}
.header.scrolled { border-bottom-color: var(--border); padding: 12px 0; }

.header-inner { display: flex; align-items: center; justify-content: space-between; }

.logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.2rem; }
.logo-mark {
  width: 36px; height: 36px; background: var(--accent); border-radius: 10px;
  display: grid; place-items: center; font-weight: 800; font-size: 1rem; color: #fff;
}
.dot { color: var(--accent); }

.nav-list { display: flex; gap: 32px; }
.nav-link {
  font-size: 0.9rem; color: var(--text-secondary); font-weight: 500;
  transition: var(--transition); position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--accent); transition: var(--transition);
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 100%; }

.header-cta {
  padding: 10px 24px; border: 1px solid var(--border); border-radius: 50px;
  font-size: 0.85rem; font-weight: 600; color: var(--text-secondary);
  transition: var(--transition);
}
.header-cta:hover { border-color: var(--accent); color: var(--accent); }

.mobile-toggle {
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 5px; padding: 4px;
}
.mobile-toggle span {
  display: block; width: 24px; height: 2px; background: var(--text);
  transition: var(--transition); border-radius: 2px;
}

/* ── Hero ── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding-top: 100px; padding-bottom: 60px; position: relative;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 50px;
  background: rgba(34,197,94,0.08); border: 1px solid rgba(34,197,94,0.2);
  font-size: 0.85rem; color: var(--green); font-weight: 500; margin-bottom: 24px;
}
.status-dot {
  width: 8px; height: 8px; background: var(--green); border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%,100% { box-shadow: 0 0 0 0 rgba(34,197,94,0.4); }
  50% { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.2rem); font-weight: 800;
  line-height: 1.1; margin-bottom: 20px; letter-spacing: -0.03em;
}
.hero-title em {
  font-style: normal; color: var(--accent-light);
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.1rem; color: var(--text-secondary); max-width: 520px;
  line-height: 1.7; margin-bottom: 32px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }

.hero-metrics { display: flex; align-items: center; gap: 24px; }
.metric { text-align: center; }
.metric-val {
  font-size: 2rem; font-weight: 800; color: var(--text);
  font-family: var(--mono);
}
.metric-plus { font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.metric-label { display: block; font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }
.metric-divider { width: 1px; height: 40px; background: var(--border); }

/* Terminal */
.terminal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 25px 60px rgba(0,0,0,0.4);
}
.terminal-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.terminal-dots { display: flex; gap: 6px; }
.terminal-dots span { width: 10px; height: 10px; border-radius: 50%; }
.terminal-dots span:nth-child(1) { background: #ef4444; }
.terminal-dots span:nth-child(2) { background: #eab308; }
.terminal-dots span:nth-child(3) { background: #22c55e; }
.terminal-title { font-size: 0.75rem; color: var(--text-muted); font-family: var(--mono); }

.terminal-body { padding: 20px; font-family: var(--mono); font-size: 0.85rem; min-height: 200px; }
.term-line { display: flex; gap: 8px; margin-bottom: 8px; }
.term-prompt { color: var(--green); font-weight: 600; }
.term-cmd { color: var(--text); }
.term-cursor {
  color: var(--accent); animation: blink 1s step-end infinite; font-weight: 300;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
.term-output { color: var(--text-secondary); line-height: 1.8; }
.term-output .highlight { color: var(--accent-light); }
.term-output .green { color: var(--green); }

.hero-scroll {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
}
.scroll-indicator {
  width: 24px; height: 40px; border: 2px solid var(--border); border-radius: 12px;
  position: relative;
}
.scroll-indicator::after {
  content: ''; position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 8px; background: var(--accent); border-radius: 2px;
  animation: scroll-bob 2s infinite;
}
@keyframes scroll-bob { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(10px); opacity:0} }

/* ── Sections ── */
.section { padding: 100px 0; }
.section-dark { background: var(--bg-elevated); }

.section-label {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.85rem; color: var(--accent); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 16px;
}
.label-line { width: 32px; height: 2px; background: var(--accent); }

.section-heading {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800;
  letter-spacing: -0.02em; margin-bottom: 48px; line-height: 1.2;
}

/* ── About ── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.about-text p { color: var(--text-secondary); margin-bottom: 16px; }
.about-text strong { color: var(--text); font-weight: 600; }

.about-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.info-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: var(--transition);
}
.info-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.info-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; }
.info-card p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; }

/* ── Timeline ── */
.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: ''; position: absolute; left: 7px; top: 0; bottom: 0;
  width: 2px; background: var(--border);
}
.timeline-item { position: relative; margin-bottom: 32px; }
.timeline-marker {
  position: absolute; left: -32px; top: 24px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--bg); border: 3px solid var(--accent);
  z-index: 1;
}
.timeline-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; transition: var(--transition);
}
.timeline-card:hover { border-color: var(--accent); }
.timeline-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; flex-wrap: wrap; gap: 8px; }
.timeline-header h3 { font-size: 1.15rem; font-weight: 700; }
.timeline-company { font-size: 0.9rem; color: var(--text-muted); margin-top: 4px; }
.timeline-date {
  font-size: 0.8rem; color: var(--accent); font-family: var(--mono);
  padding: 4px 12px; background: var(--accent-glow); border-radius: 50px;
  white-space: nowrap;
}
.timeline-list { padding-left: 20px; margin-bottom: 16px; }
.timeline-list li {
  color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 6px;
  list-style: disc; line-height: 1.6;
}
.timeline-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.timeline-tags span {
  padding: 4px 12px; background: var(--surface); border-radius: 50px;
  font-size: 0.75rem; color: var(--text-muted); font-family: var(--mono);
}

/* Infra highlight */
.infra-highlight {
  margin-top: 48px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; text-align: center;
}
.infra-header { margin-bottom: 24px; }
.infra-header h3 { font-size: 1.2rem; margin-bottom: 8px; }
.infra-header p { color: var(--text-muted); font-size: 0.9rem; }
.infra-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px;
}
.infra-item {
  display: flex; align-items: center; gap: 8px; justify-content: center;
  padding: 12px; background: var(--surface); border-radius: var(--radius-sm);
  font-size: 0.85rem; font-weight: 600; transition: var(--transition);
}
.infra-item:hover { background: var(--accent-glow); }

/* ── Projects ── */
.projects-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.project-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; transition: var(--transition);
  position: relative; overflow: hidden;
}
.project-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  opacity: 0; transition: var(--transition);
}
.project-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.project-card:hover::before { opacity: 1; }

.project-number {
  font-family: var(--mono); font-size: 3rem; font-weight: 800;
  color: var(--border); position: absolute; top: 16px; right: 24px; line-height: 1;
}
.project-type {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--accent); font-weight: 600; margin-bottom: 8px;
}
.project-content h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.project-content p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }

.project-tech { display: flex; flex-wrap: wrap; gap: 6px; }
.project-tech span {
  padding: 3px 10px; background: var(--surface); border-radius: 50px;
  font-size: 0.72rem; color: var(--text-muted); font-family: var(--mono);
}

.project-link {
  display: inline-block; margin-top: 12px; font-size: 0.85rem;
  color: var(--accent); font-weight: 600; transition: var(--transition);
}
.project-link:hover { color: var(--accent-light); }

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

.skill-group {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
}
.skill-group-title {
  font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent); font-weight: 700; margin-bottom: 16px;
}
.skill-items { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-chip {
  padding: 6px 14px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 50px; font-size: 0.82rem; color: var(--text-secondary);
  transition: var(--transition);
}
.skill-chip:hover { border-color: var(--accent); color: var(--text); background: var(--accent-glow); }

.codewars-section { margin-top: 48px; }
.codewars-inner {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; flex-wrap: wrap; gap: 16px;
}
.codewars-text h3 { font-size: 1.1rem; margin-bottom: 4px; }
.codewars-text p { color: var(--text-muted); font-size: 0.9rem; }

/* ── Education ── */
.edu-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.edu-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; transition: var(--transition);
}
.edu-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.edu-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.edu-place { color: var(--text-muted); font-size: 0.88rem; }

/* ── Contact ── */
.contact-container { text-align: center; max-width: 680px; }
.contact-heading {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800;
  letter-spacing: -0.02em; margin-bottom: 16px; line-height: 1.15;
}
.contact-sub { color: var(--text-secondary); font-size: 1.05rem; margin-bottom: 40px; }

.contact-links {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px;
  margin-bottom: 32px;
}
.contact-item {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 32px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 0.9rem; transition: var(--transition);
  font-weight: 500;
}
.contact-item:hover { border-color: var(--accent); transform: translateY(-2px); color: var(--accent); }
.contact-location { color: var(--text-muted); font-size: 0.9rem; margin-top: 16px; }

/* ── Footer ── */
.footer {
  padding: 24px 0; border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
}
.footer-copy { font-size: 0.82rem; color: var(--text-muted); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.82rem; color: var(--text-muted); transition: var(--transition); }
.footer-links a:hover { color: var(--accent); }

/* ── Animations ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.active { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ── Responsive ── */
@media (max-width: 968px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .about-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .hero-metrics { flex-wrap: wrap; }
}

@media (max-width: 768px) {
  .nav-list {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: var(--bg-elevated); flex-direction: column; gap: 0;
    padding: 80px 32px 32px; transition: var(--transition);
    border-left: 1px solid var(--border);
  }
  .nav-list.active { right: 0; }
  .nav-list li { padding: 12px 0; }
  .nav-link { font-size: 1.1rem; }
  .mobile-toggle { display: flex; }
  .header-cta { display: none; }
  .hero { padding-top: 80px; }
  .hero-title { font-size: 2.2rem; }
  .about-cards { grid-template-columns: 1fr; }
  .timeline { padding-left: 24px; }
  .timeline-header { flex-direction: column; }
  .contact-links { flex-direction: column; align-items: center; }
  .footer-inner { flex-direction: column; text-align: center; }
  .section { padding: 64px 0; }
}