:root {
  --bg: #0b0f17;
  --bg-2: #111827;
  --card: #151c2b;
  --border: #232c3f;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #6366f1;
  --accent-2: #22d3ee;
  --radius: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: min(1120px, 92%); margin: 0 auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -10px var(--accent); }
.btn-sm { padding: 0.45rem 1.1rem; font-size: 0.9rem; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); box-shadow: none; }

/* ---------- Navbar ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(11, 15, 23, 0.8);
  backdrop-filter: blur(12px);
  border-color: var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.5px; }
.logo span { color: var(--accent-2); }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a:not(.btn) { color: var(--muted); font-weight: 500; transition: color 0.2s; }
.nav-links a:not(.btn):hover { color: var(--text); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: 0.3s; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; }
.glow { position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.35; pointer-events: none; }
.glow-1 { width: 480px; height: 480px; background: var(--accent); top: -120px; left: -120px; }
.glow-2 { width: 420px; height: 420px; background: var(--accent-2); bottom: -140px; right: -100px; opacity: 0.2; }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.3fr 1fr; gap: 3rem; align-items: center; padding-top: 72px; }
.eyebrow { color: var(--accent-2); font-weight: 600; margin-bottom: 0.5rem; }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.5rem); line-height: 1.1; font-weight: 800; letter-spacing: -1.5px; }
.typing { font-size: clamp(1.4rem, 3vw, 2rem); color: var(--muted); font-weight: 600; margin: 0.6rem 0 1.2rem; }
#typed {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.cursor { color: var(--accent-2); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.lead { color: var(--muted); max-width: 520px; font-size: 1.1rem; }
.hero-cta { display: flex; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }

.hero-avatar { display: flex; justify-content: center; }
.hero-avatar img,
.avatar-placeholder {
  width: min(340px, 80vw); aspect-ratio: 1; border-radius: 50%; object-fit: cover;
  border: 3px solid transparent;
  background: linear-gradient(var(--bg-2), var(--bg-2)) padding-box,
              linear-gradient(135deg, var(--accent), var(--accent-2)) border-box;
  box-shadow: 0 30px 80px -30px var(--accent);
  animation: float 6s ease-in-out infinite;
}
.avatar-placeholder {
  display: grid; place-items: center;
  font-size: 4.5rem; font-weight: 800; letter-spacing: 2px; color: var(--muted);
}
@keyframes float { 50% { transform: translateY(-14px); } }

/* ---------- Sections ---------- */
.section { padding: 6rem 0; }
.section-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 3rem; }
.section-head h3, .contact-box h3 { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 800; letter-spacing: -0.5px; }
.section-head::after { content: ""; flex: 1; height: 1px; background: var(--border); max-width: 300px; }
.section-tag {
  font-family: ui-monospace, monospace; color: var(--accent-2);
  border: 1px solid var(--border); border-radius: 8px; padding: 0.15rem 0.6rem; font-size: 0.9rem;
}

/* About */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 3rem; align-items: center; }
.about-text p { color: var(--muted); font-size: 1.08rem; margin-bottom: 1rem; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.stat {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem; text-align: center; transition: transform 0.2s, border-color 0.2s;
}
.stat:hover { transform: translateY(-4px); border-color: var(--accent); }
.stat strong { display: block; font-size: 2.2rem; font-weight: 800; color: var(--text); }
.stat span { color: var(--muted); font-size: 0.9rem; }

/* Skills */
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.skill-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.8rem; }
.skill-card h4 { margin-bottom: 1.2rem; font-size: 1.15rem; }
.skill { margin-bottom: 1rem; }
.skill span { font-size: 0.95rem; color: var(--muted); }
.bar { height: 8px; background: var(--bg-2); border-radius: 99px; margin-top: 0.4rem; overflow: hidden; position: relative; }
.bar::after {
  content: ""; position: absolute; inset: 0; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: inherit;
  transition: width 1.2s ease;
}
.visible .bar::after { width: var(--level); }
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tags span {
  font-size: 0.82rem; padding: 0.3rem 0.8rem; border-radius: 999px;
  background: rgba(99, 102, 241, 0.12); color: #c7d2fe; border: 1px solid rgba(99, 102, 241, 0.25);
}

/* Projects */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.project {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  transition: transform 0.25s, border-color 0.25s;
}
.project:hover { transform: translateY(-6px); border-color: var(--accent); }
.project-thumb {
  height: 170px; display: grid; place-items: center; font-size: 3.5rem;
  background: linear-gradient(135deg, var(--c1), var(--c2));
}
.project-body { padding: 1.5rem; }
.project-body h4 { font-size: 1.2rem; margin-bottom: 0.4rem; }
.project-body p { color: var(--muted); font-size: 0.95rem; margin-bottom: 1rem; }
.project-links { display: flex; gap: 1.2rem; margin-top: 1.2rem; }
.project-links a { color: var(--accent-2); font-weight: 600; font-size: 0.95rem; }
.project-links a:hover { text-decoration: underline; }

/* Timeline */
.timeline { position: relative; padding-left: 2rem; border-left: 2px solid var(--border); max-width: 780px; }
.tl-item { position: relative; padding-bottom: 2.5rem; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: calc(-2rem - 8px); top: 6px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--bg); border: 3px solid var(--accent-2);
}
.tl-date { font-family: ui-monospace, monospace; font-size: 0.85rem; color: var(--accent-2); }
.tl-item h4 { font-size: 1.2rem; margin-top: 0.2rem; }
.tl-company { color: var(--text); opacity: 0.8; font-weight: 500; margin-bottom: 0.4rem; }
.tl-item p:last-child { color: var(--muted); }

.exp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.sub-head { font-size: 1.15rem; margin: 0 0 1.5rem; color: var(--text); }
.timeline + .sub-head { margin-top: 2.5rem; }
.more { text-align: center; color: var(--muted); margin-top: 2.5rem; }
.more a { color: var(--accent-2); font-weight: 600; }
.more a:hover { text-decoration: underline; }
.lead strong, .about-text strong { color: var(--text); }
@media (max-width: 900px) { .exp-grid { grid-template-columns: 1fr; } }

/* Contact */
.contact-box {
  text-align: center; background: var(--card); border: 1px solid var(--border);
  border-radius: 24px; padding: 4rem 2rem; position: relative; overflow: hidden;
}
.contact-box::before {
  content: ""; position: absolute; inset: -50% 20% auto; height: 300px;
  background: var(--accent); filter: blur(120px); opacity: 0.2;
}
.contact-box > * { position: relative; }
.contact-box h3 { margin: 1rem 0 0.6rem; }
.contact-box > p { color: var(--muted); max-width: 520px; margin: 0 auto 2rem; }
.contact-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.8rem; }
.contact-item {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.3rem; border-radius: 999px;
  background: var(--bg-2); border: 1px solid var(--border); font-weight: 500;
  transition: border-color 0.2s, transform 0.2s;
}
.contact-item:hover { border-color: var(--accent-2); transform: translateY(-2px); }

/* Footer */
.footer { padding: 2rem 0; border-top: 1px solid var(--border); text-align: center; color: var(--muted); font-size: 0.9rem; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; padding-top: 110px; padding-bottom: 60px; }
  .hero-avatar { order: -1; }
  .hero-avatar img, .avatar-placeholder { width: 220px; font-size: 3rem; }
  .lead { margin: 0 auto; }
  .hero-cta { justify-content: center; }
  .about-grid, .skills-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 1.2rem; padding: 2rem;
    background: rgba(11, 15, 23, 0.97); border-bottom: 1px solid var(--border);
    transform: translateY(-150%); transition: transform 0.3s;
  }
  .nav-links.open { transform: none; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .section { padding: 4.5rem 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}