:root {
  --bg-deep:       #080a0f;
  --bg-main:       #0d0f14;
  --bg-card:       #111318;
  --bg-card-hover: #161a22;
  --border:        rgba(59,130,246,0.12);
  --border-hover:  rgba(59,130,246,0.4);
  --blue:          #3b82f6;
  --blue-dim:      rgba(59,130,246,0.15);
  --purple:        #8b5cf6;
  --purple-dim:    rgba(139,92,246,0.15);
  --green:         #10b981;
  --text-head:     #e2e8f0;
  --text-body:     #94a3b8;
  --text-muted:    #475569;
  --text-dim:      #334155;
  --font-mono:     'JetBrains Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  --font-body:     'Inter', 'Segoe UI', system-ui, sans-serif;
  --radius:        8px;
  --radius-lg:     14px;
  --transition:    0.3s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

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

::selection { background: var(--blue-dim); color: var(--blue); }

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

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 99px; }

.container {
  width: min(92%, 1320px);
  margin: 0 auto;
}

section { padding: 100px 0; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--blue);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-label::before { content: '// '; }

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  color: var(--text-head);
  margin-bottom: 48px;
}
.section-title span { color: var(--blue); }

.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: none;
}
.fade-in.delay-1 { transition-delay: 0.1s; }
.fade-in.delay-2 { transition-delay: 0.2s; }
.fade-in.delay-3 { transition-delay: 0.3s; }
.fade-in.delay-4 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-in { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(59,130,246,0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: var(--gridx, 0px) var(--gridy, 0px);
  pointer-events: none;
  z-index: 0;
}

.social-link {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition);
  font-size: 0.9rem;
}
.social-link:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-dim);
  transform: translateY(-3px);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}
.meta-item .meta-key { color: var(--blue); min-width: 120px; }
.meta-item .meta-val { color: var(--text-body); }
.status-dot {
  display: inline-block;
  width: 7px; height: 7px;
  background: var(--green);
  border-radius: 50%;
  margin-right: 6px;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
  50%      { box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.stat-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--blue);
  line-height: 1.2;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 6px;
}

#skills  { --panel-bg: var(--bg-deep); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
}
.skill-category:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.skill-cat-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--blue);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.skill-cat-title::before {
  content: '';
  display: block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue);
  flex-shrink: 0;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 12px;
  border-radius: 99px;
  letter-spacing: 0.03em;
}
.badge-blue   { background: var(--blue-dim);   border: 1px solid rgba(59,130,246,0.3);  color: #93c5fd; }
.badge-purple { background: var(--purple-dim); border: 1px solid rgba(139,92,246,0.3);  color: #c4b5fd; }
.badge-green  { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: #6ee7b7; }
.badge-gray   { background: rgba(148,163,184,0.08); border: 1px solid rgba(148,163,184,0.2); color: #94a3b8; }

#projects { --panel-bg: var(--bg-main); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--purple));
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
.project-card:hover::before { opacity: 1; }

.project-card.featured { border-color: rgba(16,185,129,0.35); }
.project-card.featured::before { background: linear-gradient(90deg, var(--green), var(--blue)); }

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.project-icon {
  font-size: 1.6rem;
  line-height: 1;
}
.project-links {
  display: flex;
  gap: 8px;
}
.icon-btn {
  width: 34px; height: 34px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: all var(--transition);
  flex-shrink: 0;
}
.icon-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-dim);
}

.project-title {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-head);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.live-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 99px;
  padding: 2px 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.live-tag::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s ease-in-out infinite;
}

.project-url {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: -6px;
  transition: color var(--transition);
  word-break: break-all;
}
.project-url:hover { color: #34d399; text-decoration: underline; }
.project-url svg { flex-shrink: 0; }

.project-desc {
  font-size: 0.88rem;
  color: var(--text-body);
  line-height: 1.65;
  flex: 1;
}
.project-desc strong { color: var(--text-head); font-weight: 600; }

.project-highlights {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.83rem;
  color: var(--text-body);
}
.project-highlights li {
  position: relative;
  padding-left: 18px;
  line-height: 1.55;
}
.project-highlights li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--blue);
}

.project-tags { display: flex; flex-wrap: wrap; gap: 6px; }

#experience { --panel-bg: var(--bg-deep); }

.timeline {
  position: relative;
  padding-left: 36px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--blue), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -32px;
  top: 4px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 2px solid var(--blue);
  display: flex; align-items: center; justify-content: center;
}
.timeline-dot::after {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  transition: border-color var(--transition);
}
.timeline-card:hover { border-color: var(--border-hover); }

.timeline-period {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--blue);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.timeline-role {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-head);
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.timeline-desc {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-body);
  line-height: 1.65;
  margin-bottom: 16px;
}
.timeline-desc li {
  position: relative;
  padding-left: 18px;
}
.timeline-desc li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--blue);
}

#education { --panel-bg: var(--bg-main); }

.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: all var(--transition);
}
.cert-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}
.cert-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  line-height: 1;
}
.cert-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-head);
  margin-bottom: 4px;
  line-height: 1.45;
}
.cert-org {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.cert-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--blue);
  margin-top: 4px;
}

#contact { --panel-bg: var(--bg-deep); }

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-intro {
  font-size: 1rem;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 36px;
}

.contact-methods { display: flex; flex-direction: column; gap: 16px; }
.contact-method {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.contact-method:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
}
.method-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  background: var(--blue-dim);
  border: 1px solid rgba(59,130,246,0.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.method-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.method-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-head);
  word-break: break-word;
}

.contact-form { display: flex; flex-direction: column; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.form-label span { color: var(--blue); }

.form-input, .form-textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-head);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-dim); }
.form-input:focus, .form-textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-dim);
}
.form-textarea { min-height: 120px; }

.form-submit { margin-top: 8px; width: 100%; justify-content: center; }

.form-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 4px;
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

footer {
  background: var(--bg-main);
  border-top: 1px solid var(--border);
  padding: 36px 5%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 1;
  text-align: center;
}

.footer-sig {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-sig .heart { color: #ef4444; }
.footer-sig .csharp { color: var(--purple); }

.footer-links { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; }
.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--blue); }

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
}

.toast {
  position: fixed;
  bottom: 32px; right: 32px;
  background: var(--bg-card);
  border: 1px solid var(--green);
  border-radius: var(--radius);
  padding: 14px 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--green);
  z-index: 9999;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.4s ease;
  pointer-events: none;
  max-width: calc(100vw - 64px);
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}

@media (max-width: 768px) {

  .btn { justify-content: center; }
  .meta-item { flex-direction: column; gap: 2px; text-align: left; }

  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .toast { right: 16px; left: 16px; bottom: 16px; }
}

@media (max-width: 480px) {
  .skills-grid, .projects-grid, .certs-grid { grid-template-columns: 1fr; }
  .project-card, .skill-category { padding: 22px; }
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 11px 24px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.03em;
  border: none;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 0 24px rgba(59,130,246,0.25);
}
.btn-primary:hover {
  background: #2563eb;
  box-shadow: 0 0 36px rgba(59,130,246,0.45);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text-head);
  border: 1px solid var(--border-hover);
}
.btn-outline:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-2px);
}
.btn-ghost {
  background: rgba(17,19,24,0.6);
  color: var(--text-body);
  border: 1px solid var(--border);
  font-size: 0.76rem;
  padding: 9px 16px;
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

@keyframes blink { 50% { opacity: 0; } }

html, body { height: 100%; }
body { overflow: hidden; }

.hub {
  perspective: 1400px;
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(20px, 3.5vw, 64px);
  padding: 88px clamp(18px, 3.5vw, 52px) 30px;
  z-index: 1;
  transition: opacity 0.45s ease, transform 0.5s cubic-bezier(0.4,0,0.2,1), filter 0.45s ease;
}
.hub-stage::before {
  content: '';
  position: absolute;
  width: min(78vmin, 720px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.10) 0%, rgba(139,92,246,0.05) 42%, transparent 70%);
  pointer-events: none;
  animation: blobFloat 9s ease-in-out infinite alternate;
}
@keyframes blobFloat {
  from { transform: translate(-14px, 10px) scale(1); }
  to   { transform: translate(14px, -10px) scale(1.08); }
}
.hub.dimmed {
  opacity: 0;
  transform: scale(0.94);
  filter: blur(7px);
  pointer-events: none;
}

.hub-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 3;
  padding: 18px clamp(16px, 5vw, 44px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  transition: opacity 0.35s ease;
}
.hub-bar-right { display: flex; align-items: center; gap: clamp(10px, 1.5vw, 20px); }
.hub.dimmed ~ .hub-bar { opacity: 0; pointer-events: none; }

.hub-logo {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.hub-logo span { color: var(--blue); }

.hub-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 8px;
}
.hub-status::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: blink 1.6s step-end infinite;
}

.hub-hint {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  text-align: center;
  min-height: 1.3em;
  letter-spacing: 0.04em;
  transition: color var(--transition);
}
.hub-hint b { color: var(--blue); font-weight: 500; }

.orbit {
  --r: clamp(104px, min(30vh, 24vw), 320px);
  position: relative;
  width: calc(var(--r) * 2);
  height: calc(var(--r) * 2);
  display: grid;
  place-items: center;
  z-index: 2;
}

.ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
}
.ring-dash  { border: 1px dashed rgba(59,130,246,0.18); animation: spin 48s linear infinite; }
.ring-inner { inset: 15%; border: 1px solid rgba(139,92,246,0.14); animation: spin 34s linear infinite reverse; }
.ring-thin  { inset: 7%;  border: 1px solid rgba(59,130,246,0.07); }
.ring-sweep {
  inset: -5%;
  background: conic-gradient(from 0turn, transparent 0 58%, rgba(59,130,246,0.42) 86%, transparent 92%);
  -webkit-mask: radial-gradient(circle at center, transparent 0 calc(50% - 1.5px), #000 calc(50% - 1.5px) 50%, transparent 50%);
          mask: radial-gradient(circle at center, transparent 0 calc(50% - 1.5px), #000 calc(50% - 1.5px) 50%, transparent 50%);
  animation: spin 10s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.pulse {
  position: absolute;
  inset: 27%;
  border-radius: 50%;
  border: 1px solid rgba(59,130,246,0.4);
  opacity: 0;
  pointer-events: none;
  animation: pulseOut 4.8s ease-out infinite;
}
.pulse.p2 { animation-delay: 1.6s; }
.pulse.p3 { animation-delay: 3.2s; }
@keyframes pulseOut {
  0%   { transform: scale(0.6);  opacity: 0.5; }
  70%  { opacity: 0.06; }
  100% { transform: scale(1.55); opacity: 0; }
}

.particle { position: absolute; inset: 0; pointer-events: none; animation: spin 19s linear infinite; }
.particle::after {
  content: '';
  position: absolute;
  top: -3px; left: 50%;
  width: 6px; height: 6px;
  margin-left: -3px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 12px rgba(59,130,246,0.9);
}
.particle.p-b { inset: 16%; animation-duration: 13s; animation-direction: reverse; }
.particle.p-b::after { background: var(--purple); box-shadow: 0 0 12px rgba(139,92,246,0.9); width: 5px; height: 5px; }
.particle.p-c { inset: 32%; animation-duration: 24s; }
.particle.p-c::after { background: var(--green); box-shadow: 0 0 10px rgba(16,185,129,0.8); width: 4px; height: 4px; }

.core {
  position: relative;
  z-index: 3;
  width: clamp(104px, calc(var(--r) * 0.72), 240px);
  aspect-ratio: 1;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  text-align: center;
  padding: 10px;
  background:
    radial-gradient(circle at 32% 26%, rgba(59,130,246,0.20), transparent 60%),
    var(--bg-card);
  border: 1px solid var(--border-hover);
  box-shadow:
    0 0 0 7px rgba(59,130,246,0.035),
    0 0 60px rgba(59,130,246,0.18),
    inset 0 0 40px rgba(59,130,246,0.06);
}
.core-tag {
  font-family: var(--font-mono);
  font-size: clamp(0.55rem, calc(var(--r) * 0.042), 0.8rem);
  color: var(--text-dim);
  letter-spacing: 0.16em;
}
.core-mono {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, calc(var(--r) * 0.17), 3.4rem);
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.06em;
  line-height: 1.1;
}
.cursor {
  display: inline-block;
  width: 3px;
  height: 1em;
  background: var(--blue);
  margin-left: 4px;
  vertical-align: -0.1em;
  animation: blink 0.8s step-end infinite;
}
.core-role {
  font-family: var(--font-mono);
  font-size: clamp(0.52rem, calc(var(--r) * 0.042), 0.78rem);
  color: var(--blue);
  letter-spacing: 0.1em;
}

.node {
  position: absolute;
  left: 50%; top: 50%;
  transform:
    translate(-50%, -50%)
    rotate(var(--a))
    translateY(calc(var(--r) * -1))
    rotate(calc(var(--a) * -1));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(7px, calc(var(--r) * 0.045), 16px);
  z-index: 4;
  cursor: pointer;
  outline: none;
}
.node-orb {
  position: relative;
  display: grid;
  place-items: center;
  animation: nodeFloat 6.5s ease-in-out infinite;
  animation-delay: var(--d, 0s);
}
@keyframes nodeFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
.spoke {
  position: absolute;
  left: 50%; top: 50%;
  width: 1px;
  height: var(--r);
  transform-origin: top center;
  transform: rotate(var(--a));
  background: linear-gradient(to bottom, rgba(59,130,246,0.30), transparent 85%);
  opacity: 0.45;
  pointer-events: none;
  transition: opacity var(--transition);
}
.node-dot {
  width: clamp(52px, calc(var(--r) * 0.30), 104px);
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(155deg, var(--bg-card-hover), var(--bg-card));
  border: 1px solid var(--border);
  color: var(--text-body);
  box-shadow: 0 6px 24px rgba(0,0,0,0.4);
  transition: transform 0.35s cubic-bezier(0.34,1.56,0.64,1), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}
.node-dot svg { width: clamp(18px, calc(var(--r) * 0.105), 34px); height: auto; }
.node-label {
  font-family: var(--font-mono);
  font-size: clamp(0.6rem, calc(var(--r) * 0.05), 1rem);
  letter-spacing: 0.1em;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color var(--transition);
}
.node-index {
  position: absolute;
  top: -2px; right: -2px;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-dim);
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 1px 5px;
  transition: color var(--transition), border-color var(--transition);
}
.node:hover .node-dot,
.node:focus-visible .node-dot {
  transform: scale(1.13);
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: 0 0 0 1px rgba(59,130,246,0.35), 0 0 34px rgba(59,130,246,0.35);
}
.node:hover .node-label,
.node:focus-visible .node-label { color: var(--text-head); }
.node:hover .node-index,
.node:focus-visible .node-index { color: var(--blue); border-color: var(--border-hover); }
.node:hover .spoke,
.node:focus-visible .spoke { opacity: 1; }
.node:active .node-dot { transform: scale(1.02); }

.panel {
  padding: 0;
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  flex-direction: column;
  background: var(--panel-bg, var(--bg-deep));
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.99);
  transition: opacity 0.4s ease, transform 0.45s cubic-bezier(0.4,0,0.2,1), visibility 0.45s;
}
.panel.open {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.panel-bar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px clamp(16px, 5vw, 44px);
  border-bottom: 1px solid var(--border);
  background: rgba(8,10,15,0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.panel-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-body);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px;
  cursor: pointer;
  transition: all var(--transition);
}
.panel-back:hover { border-color: var(--blue); color: var(--blue); }
.panel-crumb {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.panel-crumb b { color: var(--text-head); font-weight: 500; }
.panel-nav { margin-left: auto; display: flex; gap: 8px; }
.pnav {
  width: 34px; height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.pnav:hover { border-color: var(--blue); color: var(--blue); }

.panel-body {
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 52px 0 80px;
  position: relative;
}
.panel-body::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(59,130,246,0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.panel-body .container { position: relative; z-index: 1; }

.panel-footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
}
.panel-footer .heart  { color: #ef4444; }
.panel-footer .csharp { color: var(--purple); }

@media (max-width: 768px) {
  .hub-bar { padding: 14px 16px; }
  .panel-body { padding: 34px 0 60px; }
  .panel-crumb { font-size: 0.72rem; }
  .node-index { display: none; }
}

@media (max-width: 420px) {
  .orbit { --r: clamp(100px, min(30vh, 34vw), 168px); }
  .hub-status { font-size: 0.64rem; }
  .panel-back span { display: none; }
}

@media (max-height: 640px) {
  .orbit { --r: clamp(92px, min(26vh, 22vw), 190px); }
  .hub-hint { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .ring-dash, .ring-inner, .ring-sweep, .particle, .pulse, .node-orb, .hub-stage::before {
    animation: none !important;
  }
  .pulse { opacity: 0; }
}

.orbit > .core, .orbit > .orbit-nav { grid-area: 1 / 1; }
.orbit-nav { position: static; width: 0; height: 0; }

.node { opacity: 0; transition: opacity 0.55s ease; transition-delay: var(--d, 0s); }
.hub.ready .node { opacity: 1; }
.core { opacity: 0; transform: scale(0.92); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.34,1.4,0.64,1); }
.hub.ready .core { opacity: 1; transform: scale(1); }

.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  display: block;
}

.bg-glow {
  position: fixed;
  top: 0; left: 0;
  width: 620px; height: 620px;
  margin: -310px 0 0 -310px;
  border-radius: 50%;
  background: radial-gradient(circle,
    rgba(59,130,246,0.11) 0%,
    rgba(139,92,246,0.06) 42%,
    transparent 70%);
  transform: translate3d(var(--gx, 50vw), var(--gy, 50vh), 0);
  pointer-events: none;
  z-index: 0;
  will-change: transform;
  transition: opacity 0.4s ease;
}

.orbit {
  transform: translate3d(var(--tx, 0px), var(--ty, 0px), 0) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  will-change: transform;
}

.panel-open .bg-glow { opacity: 0; }

@media (max-width: 768px) {
  .bg-glow { width: 420px; height: 420px; margin: -210px 0 0 -210px; }
}

@media (prefers-reduced-motion: reduce) {
  .bg-glow { display: none; }
  .orbit { transform: none; transition: none; }
}

.node-orb { transition: opacity 0.3s ease; }
.orbit-nav:hover .node:not(:hover) .node-orb,
.orbit-nav:hover .node:not(:hover) .node-label { opacity: 0.38; }
.node-label { transition: color var(--transition), opacity 0.3s ease; }

.timeline     { max-width: 1040px; }
.contact-intro { max-width: 60ch; }

.panel-body { scroll-behavior: smooth; }

.panel { transform: scale(0.965); transform-origin: 50% 50%; }

@media (min-width: 1280px) {
  .panel-body { padding: 68px 0 96px; }
  .bg-glow    { width: 760px; height: 760px; margin: -380px 0 0 -380px; }
  .hub-bar { padding: 22px clamp(24px, 4vw, 56px); }
}

@media (min-width: 1700px) {
  .container  { width: min(90%, 1460px); }
  .bg-glow    { width: 900px; height: 900px; margin: -450px 0 0 -450px; }
}

.hub-info {
  flex: 0 0 auto;
  width: clamp(300px, 27vw, 400px);
  max-height: 100%;
  overflow-y: auto;
  padding-right: 8px;
  z-index: 2;
}

.hub-stage {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2.4vh, 30px);
}

.info-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--blue);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.info-label::before { content: '// '; }

.info-name {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 2.4vw, 2.3rem);
  font-weight: 700;
  color: var(--text-head);
  line-height: 1.15;
  margin-top: 8px;
}
.info-role {
  font-family: var(--font-mono);
  font-size: clamp(0.82rem, 1.05vw, 0.95rem);
  color: var(--blue);
  margin-top: 6px;
}
.info-stack {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 5px;
  line-height: 1.6;
}

.info-bio {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--text-body);
  margin-top: 18px;
}
.info-bio strong { color: var(--text-head); font-weight: 600; }

.info-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.info-meta .meta-item {
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  font-size: 0.76rem;
}
.info-meta .meta-key { min-width: 0; letter-spacing: 0.08em; }

.info-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 22px;
}
.info-stats .stat-card  { padding: 14px 10px; border-radius: var(--radius); }
.info-stats .stat-value { font-size: 1.5rem; }
.info-stats .stat-label { font-size: 0.6rem; letter-spacing: 0.06em; margin-top: 2px; }

.info-socials {
  display: flex;
  gap: 10px;
  margin-top: 22px;
  padding-bottom: 4px;
}

@media (max-width: 1100px) {
  .hub {
    flex-direction: column;
    justify-content: flex-start;
    gap: 28px;
    padding: 84px 20px 32px;
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .hub-stage { order: -1; flex: 0 0 auto; width: 100%; padding-top: 8px; }
  .hub-info  {
    width: 100%;
    max-width: 620px;
    max-height: none;
    overflow: visible;
    padding: 24px 0 8px;
    border-top: 1px solid var(--border);
  }
  .info-stats { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 640px) {
  .info-stats { grid-template-columns: repeat(2, 1fr); }
  .hub-status { display: none; }
}