:root {
  --bg: #0a0a14;
  --bg-2: #0f0f1f;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e9e9f1;
  --text-dim: #a0a0b8;
  --text-mute: #6b6b85;
  --accent: #7c5cff;
  --accent-2: #22d3ee;
  --accent-3: #f59e0b;
  --grad: linear-gradient(135deg, #7c5cff 0%, #22d3ee 60%, #34d399 100%);
  --radius: 16px;
  --radius-sm: 10px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(124, 92, 255, 0.18), transparent 60%),
              radial-gradient(800px 400px at -10% 30%, rgba(34, 211, 238, 0.12), transparent 60%),
              var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
a:hover { color: #fff; }

/* Accessibility: skip-link & focus rings */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  padding: 10px 16px; background: var(--text); color: var(--bg);
  border-radius: 8px; font-weight: 600; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; outline: none; }
:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}
code, .mono { font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 0.9em; }

.bg-orbs { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.35; }
.orb-1 { width: 480px; height: 480px; background: #7c5cff; top: -120px; left: -100px; }
.orb-2 { width: 420px; height: 420px; background: #22d3ee; bottom: -80px; right: -80px; opacity: 0.22; }
.orb-3 { width: 360px; height: 360px; background: #34d399; top: 40%; left: 60%; opacity: 0.15; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px;
  backdrop-filter: blur(14px);
  background: rgba(10, 10, 20, 0.55);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark {
  width: 32px; height: 32px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  border: 1px solid var(--border-strong);
  box-shadow: 0 0 0 2px rgba(124, 92, 255, 0.25);
  background: var(--panel-2);
}
.brand:hover .brand-mark { box-shadow: 0 0 0 2px rgba(34, 211, 238, 0.4); }
.brand-name { font-size: 15px; letter-spacing: 0.2px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font-size: 14px; color: var(--text-dim); transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  font-size: 14px; font-weight: 600;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--text); color: var(--bg);
  transition: transform 0.15s ease, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(255,255,255,0.15); color: var(--bg); }

@media (max-width: 720px) {
  .nav { padding: 14px 20px; }
  .nav-links { display: none; }
}

/* ---------- Sections ---------- */
main { position: relative; z-index: 1; max-width: var(--max); margin: 0 auto; padding: 0 32px; }
.section { padding: 96px 0; border-top: 1px solid var(--border); }
.section:first-of-type { border: 0; }
.section-head { margin-bottom: 40px; }
.kicker {
  display: inline-block; font-family: 'JetBrains Mono', monospace;
  font-size: 12px; color: var(--accent-2);
  text-transform: uppercase; letter-spacing: 2px;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 720px;
}

@media (max-width: 720px) {
  main { padding: 0 20px; }
  .section { padding: 64px 0; }
}

/* ---------- Hero ---------- */
.hero { padding: 80px 0 40px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--border);
  font-size: 13px; color: var(--text-dim);
  margin-bottom: 24px;
}
.dot {
  width: 8px; height: 8px; border-radius: 50%; background: #34d399;
  box-shadow: 0 0 12px #34d399;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity:1 } 50% { opacity: 0.4 } }

.hero h1 {
  font-size: clamp(36px, 5.4vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
  font-weight: 800;
}
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede { font-size: 17px; color: var(--text-dim); max-width: 560px; margin: 0 0 32px; }

.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 15px; font-weight: 600;
  transition: transform 0.15s ease, background 0.2s, border-color 0.2s, box-shadow 0.2s;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn.primary { background: var(--text); color: var(--bg); }
.btn.primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(255,255,255,0.18); color: var(--bg); }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn.ghost:hover { background: var(--panel-2); border-color: rgba(255,255,255,0.3); transform: translateY(-2px); }

.stats { list-style: none; display: flex; gap: 40px; padding: 0; margin: 0; flex-wrap: wrap; }
.stats li { display: flex; flex-direction: column; }
.stats strong {
  font-size: 28px; font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stats span { font-size: 13px; color: var(--text-mute); }

/* avatar */
.hero-avatar { display: flex; flex-direction: column; align-items: center; gap: 24px; }
.avatar-wrap {
  position: relative;
  width: min(360px, 90vw);
  aspect-ratio: 1/1;
  border-radius: 24px;
  overflow: hidden;
}
.avatar-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 24px;
  position: relative; z-index: 2;
}
.avatar-ring {
  position: absolute; inset: -2px;
  border-radius: 26px;
  background: var(--grad);
  z-index: 1;
  filter: blur(0.5px);
}
.avatar-glow {
  position: absolute; inset: -40px;
  background: var(--grad);
  filter: blur(60px);
  opacity: 0.35;
  z-index: 0;
  border-radius: 50%;
}
.badge-stack { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.chip {
  font-size: 13px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text-dim);
  backdrop-filter: blur(10px);
}

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-avatar { order: -1; }
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.about-grid p {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.7;
}
.about-grid a { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }
.about-grid code {
  background: rgba(255,255,255,0.06);
  padding: 2px 6px; border-radius: 4px; color: var(--text);
}
@media (max-width: 880px) { .about-grid { grid-template-columns: 1fr; } }

/* ---------- Skills ---------- */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.skill-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}
.skill-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--panel-2);
}
.skill-card h3 {
  margin: 0 0 16px; font-size: 16px; font-weight: 600;
  color: var(--text);
}
.skill-card ul { list-style: none; padding: 0; margin: 0; }
.skill-card li {
  font-size: 14px; color: var(--text-dim);
  padding: 8px 0;
  border-top: 1px dashed var(--border);
}
.skill-card li:first-child { border-top: 0; padding-top: 0; }

@media (max-width: 980px) { .skill-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .skill-grid { grid-template-columns: 1fr; } }

/* ---------- Projects ---------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}
.project-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.3s;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
  mix-blend-mode: overlay;
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 20px 60px rgba(124,92,255,0.18);
}
.project-card:hover::before { opacity: 0.04; }

.project-tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-2);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.project-card h3 {
  font-size: 26px;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.project-sub {
  margin: 0 0 16px;
  color: var(--accent-2);
  font-size: 14px;
  font-weight: 500;
}
.project-body { color: var(--text-dim); font-size: 15px; margin: 0 0 20px; }
.project-body strong { color: var(--text); }

.tech { list-style: none; padding: 0; margin: 0 0 24px; display: flex; flex-wrap: wrap; gap: 6px; }
.tech li {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255,255,255,0.05);
  color: var(--text-dim);
  border: 1px solid var(--border);
}

.project-links { display: flex; gap: 14px; flex-wrap: wrap; }
.project-links a {
  font-size: 14px; font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.project-links a:hover { color: var(--accent-2); border-color: var(--accent-2); }

/* ---------- Contact ---------- */
.contact { padding-bottom: 120px; }
.contact-card {
  background: linear-gradient(135deg, rgba(124,92,255,0.12), rgba(34,211,238,0.06));
  border: 1px solid var(--border-strong);
  border-radius: 24px;
  padding: 56px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: center;
}
.contact-card .kicker { color: var(--accent); }
.contact-card h2 { font-size: clamp(26px, 3.4vw, 36px); margin: 0 0 12px; letter-spacing: -0.02em; }
.contact-card p { color: var(--text-dim); margin: 0; font-size: 15px; }
.contact-actions { display: flex; flex-direction: column; gap: 12px; }

@media (max-width: 880px) {
  .contact-card { grid-template-columns: 1fr; padding: 36px; }
  .contact-actions { flex-direction: row; flex-wrap: wrap; }
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 32px;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-mute);
  max-width: var(--max);
  margin: 0 auto;
}
@media (max-width: 600px) { .footer { flex-direction: column; gap: 8px; padding: 24px 20px; } }

/* ---------- 404 page ---------- */
.page-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  text-align: center;
  padding: 32px;
}
.page-404__code {
  font-size: 72px;
  margin: 0;
  background: linear-gradient(135deg, #a78bfa, #22d3ee);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-404__msg {
  font-size: 20px;
  color: var(--text-dim);
  margin: 8px 0 24px 0;
}

/* Reveal-on-scroll: gated on .js so JS-disabled / CSP-blocked users still see content. */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  will-change: opacity, transform;
}
.js .reveal.in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}