/* ===== Tokens ===== */
:root {
  --bg:        #05070d;
  --bg-2:      #0a0e18;
  --panel:     rgba(255, 255, 255, 0.03);
  --border:    rgba(45, 226, 255, 0.14);
  --text:      #e8eef2;
  --muted:     #8a97a6;
  --neon:      #00f0c0;
  --neon-2:    #2de2ff;
  --glow:      0 0 24px rgba(0, 240, 192, 0.35);
  --mono:      ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", monospace;
  --sans:      "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --maxw:      980px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* ===== Hero ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background:
    radial-gradient(1200px 700px at 50% 20%, rgba(0, 240, 192, 0.08), transparent 60%),
    radial-gradient(900px 600px at 80% 80%, rgba(45, 226, 255, 0.07), transparent 55%),
    var(--bg);
}

#scene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 1;
  cursor: grab;
}
#scene:active { cursor: grabbing; }

.hero__overlay {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  pointer-events: none; /* let drags reach the canvas; re-enable on buttons */
}

.kicker {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 1rem;
  text-shadow: var(--glow);
}

.hero__name {
  font-size: clamp(2.6rem, 9vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  background: linear-gradient(180deg, #ffffff, #9fb3c0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__tagline {
  margin-top: 1rem;
  color: var(--muted);
  font-size: clamp(0.95rem, 2.2vw, 1.15rem);
}

.hero__cta {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  pointer-events: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn--solid {
  background: var(--neon);
  color: #04110d;
  border-color: transparent;
  font-weight: 600;
}
.btn--solid:hover { box-shadow: var(--glow); transform: translateY(-2px); }
.btn--ghost:hover { border-color: var(--neon); color: var(--neon); transform: translateY(-2px); }

.hero__hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 2;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 0.35; } 50% { opacity: 1; } }

/* ===== Sections ===== */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 7rem 24px 2rem;
}
.section__index {
  font-family: var(--mono);
  color: var(--neon);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  opacity: 0.7;
}
.section__title {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 700;
  margin: 0.4rem 0 2.5rem;
  position: relative;
  display: inline-block;
}
.section__title::after {
  content: "";
  position: absolute;
  left: 0; bottom: -10px;
  width: 56px; height: 3px;
  background: linear-gradient(90deg, var(--neon), var(--neon-2));
  border-radius: 2px;
}

/* About */
.about { display: grid; gap: 1.2rem; max-width: 720px; }
.about p { color: #cdd6df; }
.about strong { color: var(--neon); font-weight: 600; }
.facts {
  list-style: none;
  margin-top: 1rem;
  display: grid;
  gap: 0.6rem;
}
.facts li {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--text);
  display: flex;
  gap: 1rem;
}
.facts span {
  color: var(--muted);
  min-width: 96px;
  display: inline-block;
}

/* Timeline */
.timeline { list-style: none; display: grid; gap: 1.2rem; }
.timeline li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1.5rem;
  padding: 1.6rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.timeline li:hover { border-color: var(--neon); transform: translateY(-3px); }
.timeline__date {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--neon-2);
}
.timeline__body h3 { font-size: 1.15rem; font-weight: 650; }
.timeline__body .at { color: var(--muted); font-weight: 400; }
.timeline__body p { color: #b9c4ce; margin: 0.4rem 0 0.8rem; }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tags li {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
}

/* Skills */
.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.2rem; }
.skills__group {
  padding: 1.4rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
}
.skills__group h4 {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 0.9rem;
}
.skills__group ul { list-style: none; display: grid; gap: 0.5rem; }
.skills__group li { color: #cdd6df; }

/* Education */
.edu { list-style: none; display: grid; gap: 1rem; }
.edu li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1.5rem;
  align-items: baseline;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.edu li:last-child { border-bottom: none; }
.edu__date { font-family: var(--mono); font-size: 0.8rem; color: var(--neon-2); }
.edu h3 { font-size: 1.05rem; font-weight: 600; }
.edu .at { color: var(--muted); font-weight: 400; }
.edu p { color: var(--muted); margin-top: 0.2rem; }

/* Contact */
.contact__lead { color: var(--muted); font-size: 1.1rem; }
.contact__links {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.contact__links a {
  font-family: var(--mono);
  font-size: 0.95rem;
  padding: 0.9rem 1.4rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all 0.2s ease;
}
.contact__links a:hover {
  border-color: var(--neon);
  color: var(--neon);
  box-shadow: var(--glow);
}

/* Footer */
.footer {
  max-width: var(--maxw);
  margin: 4rem auto 0;
  padding: 2rem 24px 3rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.8rem;
}
.footer__top:hover { color: var(--neon); }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 700px) {
  .timeline li { grid-template-columns: 1fr; gap: 0.6rem; }
  .edu li { grid-template-columns: 1fr; gap: 0.3rem; }
  .skills { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__hint { animation: none; }
}