:root {
  --bg: #0a0f1c;
  --bg-alt: #101827;
  --card: #111a2b;
  --border: #26344a;
  --text: #eef2f7;
  --text-dim: #9aa8bc;
  --accent: #5b9cf5;
  --accent-2: #4cc9a3;
  --accent-3: #86b9ff;
  --radius: 14px;
  --max-w: 1120px;
  --font-head: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --gradient-accent: linear-gradient(135deg, #2563eb, #0e7490);
  --glass-bg: color-mix(in srgb, var(--card) 84%, transparent);
  --glass-border: color-mix(in srgb, var(--text) 13%, transparent);
  --grid-line: color-mix(in srgb, var(--text) 4%, transparent);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f9fc;
    --bg-alt: #ffffff;
    --card: #ffffff;
    --border: #dbe3ee;
    --text: #172033;
    --text-dim: #5f6f85;
    --accent: #1d64cf;
    --accent-2: #0f766e;
    --accent-3: #2563eb;
  }
}

:root[data-theme="dark"] {
  --bg: #0a0f1c;
  --bg-alt: #101827;
  --card: #111a2b;
  --border: #26344a;
  --text: #eef2f7;
  --text-dim: #9aa8bc;
  --accent: #5b9cf5;
  --accent-2: #4cc9a3;
  --accent-3: #86b9ff;
}

:root[data-theme="light"] {
  --bg: #f7f9fc;
  --bg-alt: #ffffff;
  --card: #ffffff;
  --border: #dbe3ee;
  --text: #172033;
  --text-dim: #5f6f85;
  --accent: #1d64cf;
  --accent-2: #0f766e;
  --accent-3: #2563eb;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 76px; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 82% 4%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 30rem),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: auto, 64px 64px, 64px 64px;
  background-position: center top;
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-head); }

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* SCROLL PROGRESS */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-3));
  z-index: 200;
  transition: width 0.1s ease-out;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  flex-shrink: 0;
}
.logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  background: var(--gradient-accent);
  border-radius: 9px;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-copy strong {
  color: var(--text);
  font-family: var(--font-head);
  font-size: 0.83rem;
  letter-spacing: -0.01em;
}
.brand-copy small {
  margin-top: 3px;
  color: var(--text-dim);
  font-size: 0.61rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.nav-links a {
  position: relative;
  color: var(--text-dim);
  font-size: 0.84rem;
  font-weight: 500;
  padding-bottom: 3px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0%;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--accent); }
.mobile-resume-links { display: none; }

.nav-inner > nav { margin-left: auto; }
.nav-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.nav-resume-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-resume-link {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.74rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.nav-resume-link:first-child {
  border-color: color-mix(in srgb, var(--accent) 52%, var(--border));
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}
.nav-resume-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0;
  cursor: pointer;
  color: var(--text);
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}
.theme-icon { display: none; }
:root[data-theme="dark"] .theme-icon-sun { display: block; }
:root[data-theme="light"] .theme-icon-moon { display: block; }
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-burger span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* HERO */
.hero {
  position: relative;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 112px 20px 90px;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -160px;
  right: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 16%, transparent) 0%, transparent 70%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 72px;
}
.hero-text { flex: 1 1 480px; min-width: 0; }
.hero-visual {
  position: relative;
  flex: 0 0 280px;
  width: 280px;
  height: 280px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 52%),
    var(--bg-alt);
  box-shadow: inset 0 0 50px color-mix(in srgb, var(--accent) 5%, transparent);
  animation: visualFloat 5s ease-in-out infinite;
  isolation: isolate;
}
@keyframes visualFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}
.visual-orbit {
  position: absolute;
  inset: 32px;
  border: 1px solid color-mix(in srgb, var(--accent) 32%, var(--border));
  border-radius: 50%;
  animation: orbitPulse 3.2s ease-in-out infinite;
}
.visual-orbit-inner {
  inset: 72px;
  border-color: color-mix(in srgb, var(--accent-2) 36%, var(--border));
  animation-delay: -1.6s;
}
@keyframes orbitPulse {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.025); }
}
.visual-core {
  position: absolute;
  inset: 50%;
  width: 104px;
  height: 104px;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border: 1px solid color-mix(in srgb, var(--accent) 52%, var(--border));
  border-radius: 50%;
  background: var(--card);
  box-shadow: 0 16px 32px -20px color-mix(in srgb, var(--accent) 65%, transparent);
}
.visual-core strong {
  font-family: var(--font-head);
  font-size: 1.9rem;
  line-height: 1;
  color: var(--text);
}
.visual-core small {
  color: var(--text-dim);
  font-size: 0.63rem;
  letter-spacing: 0.02em;
}
.visual-node {
  position: absolute;
  z-index: 2;
  padding: 6px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--text);
  font-size: 0.7rem;
  font-weight: 600;
  box-shadow: 0 10px 24px -16px rgba(0, 0, 0, 0.8);
  transition: color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.hero-visual:hover .visual-node {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 62%, var(--border));
  box-shadow: 0 12px 28px -16px color-mix(in srgb, var(--accent) 70%, transparent);
}
.visual-node-software { top: 29px; left: 50%; transform: translateX(-50%); }
.visual-node-data { left: 7px; bottom: 60px; }
.visual-node-ml { right: 18px; bottom: 39px; }

@media (prefers-reduced-motion: reduce) {
  .hero-visual, .visual-orbit, .status-dot, .caret, .blink-cursor, .stat-loading { animation: none; }
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: color-mix(in srgb, var(--accent-2) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-2) 35%, transparent);
  color: var(--accent-2);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
  max-width: 100%;
  line-height: 1.4;
  white-space: normal;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-2) 60%, transparent);
  animation: statusPulse 2s ease-out infinite;
  flex-shrink: 0;
}
@keyframes statusPulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-2) 55%, transparent); }
  70% { box-shadow: 0 0 0 8px color-mix(in srgb, var(--accent-2) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-2) 0%, transparent); }
}

.eyebrow {
  color: var(--text-dim);
  font-weight: 600;
  margin: 0 0 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
}
.hero h1 {
  font-size: clamp(2.65rem, 5.5vw, 4.15rem);
  margin: 0 0 14px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.045em;
  line-height: 1.02;
}
.hero h1 .grad-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.role {
  color: var(--text-dim);
  font-size: 1.08rem;
  font-weight: 500;
  margin: 0 0 18px;
  min-height: 1.75em;
}
.role .dot { color: var(--accent); }
.role-prefix { color: var(--text-dim); }
.role-typed { color: var(--accent); font-weight: 600; }
.caret {
  color: var(--accent);
  font-weight: 400;
  animation: caretBlink 0.9s steps(1) infinite;
}
@keyframes caretBlink {
  0%, 50% { opacity: 1; }
  50.01%, 100% { opacity: 0; }
}
.hero-sub {
  max-width: 620px;
  color: var(--text-dim);
  margin: 0 0 28px;
  font-size: 1.02rem;
}
.hero-actions {
  display: grid;
  gap: 9px;
  margin-bottom: 38px;
}
.hero-actions-label {
  color: var(--text-dim);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 12px 18px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  min-width: 0;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.hero-stat:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--glass-border));
  box-shadow: 0 16px 34px -24px color-mix(in srgb, var(--accent) 70%, transparent);
}
.hero-stat span {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: 9px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, color 0.18s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--gradient-accent);
  color: #fff;
}
.btn-primary:hover { box-shadow: 0 8px 24px -8px color-mix(in srgb, var(--accent) 55%, transparent); }
.btn-ghost { border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
button.btn { font-family: var(--font-body); background: none; }
button.btn.copied { border-color: var(--accent-2); color: var(--accent-2); }

/* SCROLL REVEAL */
html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
html.js .reveal.in-view { opacity: 1; transform: translateY(0); }
html.js .reveal-item {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.5s ease calc(var(--reveal-order, 0) * 55ms),
    transform 0.5s ease calc(var(--reveal-order, 0) * 55ms);
}
html.js .reveal-item.in-view { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  html.js .reveal,
  html.js .reveal-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* SECTIONS */
.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 88px 20px;
  border-top: 1px solid var(--border);
}
.section-title {
  font-size: clamp(1.8rem, 3vw, 2.25rem);
  margin: 0 0 24px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  letter-spacing: -0.03em;
}
.section-title span {
  color: var(--accent);
  font-family: var(--font-head);
  font-size: 1.1rem;
}
.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  margin-left: 12px;
  background: linear-gradient(90deg, var(--border), transparent);
}
.section-intro { color: var(--text-dim); margin: -12px 0 34px; max-width: 720px; }

.about-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.about-list li { color: var(--text-dim); }
.about-list strong { color: var(--text); }

.about-short {
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 720px;
  margin: 0 0 28px;
}
.about-short strong { color: var(--text); }

.about-pillars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.about-pillars li {
  position: relative;
  overflow: hidden;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 18px 16px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.about-pillars li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-accent);
  opacity: 0.75;
}
.about-pillars li:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 38%, var(--border));
  box-shadow: 0 18px 34px -28px color-mix(in srgb, var(--accent) 80%, transparent);
}
.about-pillars h3 {
  margin: 0 0 8px;
  font-size: 0.98rem;
  color: var(--text);
}
.about-pillars p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* CARDS */
.card {
  --pointer-x: 50%;
  --pointer-y: 50%;
  --card-accent: var(--accent);
  position: relative;
  isolation: isolate;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: radial-gradient(
    420px circle at var(--pointer-x) var(--pointer-y),
    color-mix(in srgb, var(--card-accent) 10%, transparent),
    transparent 48%
  );
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--card-accent) 48%, var(--border));
  box-shadow: 0 22px 44px -30px color-mix(in srgb, var(--card-accent) 60%, rgba(0, 0, 0, 0.65));
}
.card:hover::before { opacity: 1; }

/* TIMELINE */
.timeline { display: grid; gap: 0; }
.timeline-item { display: flex; gap: 20px; }
.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  padding-top: 6px;
}
.timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent);
  flex-shrink: 0;
}
.timeline-line {
  width: 2px;
  flex: 1;
  background: var(--border);
  margin-top: 4px;
}
.timeline-item:last-child .timeline-line { display: none; }
.timeline-item .exp-card { flex: 1; margin-bottom: 8px; }

.exp-card { display: grid; gap: 12px; }
.exp-head { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; align-items: baseline; }
.exp-head h3 { margin: 0; font-size: 1.12rem; }
.exp-head .tag {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 500;
  margin-left: 8px;
}
.exp-date { color: var(--text-dim); font-size: 0.88rem; white-space: nowrap; }
.exp-card ul { margin: 0; padding-left: 20px; color: var(--text-dim); display: grid; gap: 9px; }
.exp-card strong { color: var(--text); }

.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
  margin: 2px 0 4px;
}
.kpi-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.kpi-tag {
  display: block;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.kpi-val {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--accent);
  margin-bottom: 2px;
}
.kpi-desc { font-size: 0.78rem; color: var(--text-dim); }

.grid { display: grid; gap: 20px; align-items: stretch; }
.coding-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.achievements-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.achievements-grid .achievement-card { grid-column: span 3; }
.achievements-grid .achievement-card:first-child { grid-column: span 6; }
.projects-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.project-card--wide { grid-column: span 6; }
.project-card--compact { grid-column: span 4; }
.track-sde { --card-accent: var(--accent); }
.track-hybrid { --card-accent: var(--accent-3); }
.track-ai { --card-accent: var(--accent-3); }
.track-ml { --card-accent: var(--accent-2); }

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--card-accent);
  background: color-mix(in srgb, var(--card-accent) 11%, transparent);
  border: 1px solid color-mix(in srgb, var(--card-accent) 30%, transparent);
  border-radius: 999px;
  padding: 3px 9px;
}
.project-date {
  flex-shrink: 0;
  color: var(--text-dim);
  font-size: 0.7rem;
  font-weight: 500;
}

.achv-link {
  margin-top: auto;
  padding-top: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}
.achv-link:hover { text-decoration: underline; }

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-tracks {
  color: var(--text-dim);
  font-size: 0.82rem;
}

.platform-card {
  --card-accent: var(--accent);
  border-top: 3px solid var(--accent);
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 190px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.platform-card.cf { --card-accent: #1f8acb; border-top-color: #1f8acb; }
.platform-card.lc { --card-accent: #ffa116; border-top-color: #ffa116; }
.platform-card.cc { --card-accent: #8b4513; border-top-color: #8b4513; }
.platform-card.ac { --card-accent: #64748b; border-top-color: #64748b; }

.platform-head { display: flex; justify-content: space-between; align-items: center; }
.platform-name { display: flex; align-items: center; gap: 9px; }
.platform-logo {
  display: block;
  background: #fff;
  border-radius: 6px;
  padding: 3px;
}
.platform-head h3 { margin: 0; font-size: 1.08rem; }
.ext-link { font-size: 0.85rem; color: var(--text-dim); }
.ext-link:hover { color: var(--accent); }

.stat-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.stat { display: flex; flex-direction: column; }
.stat-val { font-family: var(--font-head); font-size: 1.22rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.72rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-loading { color: var(--text-dim); animation: dataPulse 1.4s ease-in-out infinite; }
@keyframes dataPulse {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 1; }
}
.platform-status {
  min-height: 1em;
  margin: -5px 0 0;
  color: var(--text-dim);
  font-size: 0.68rem;
}
.platform-card[data-state="loaded"] .platform-status { color: var(--accent-2); }
.platform-card[data-state="error"] .platform-status { color: var(--text-dim); }

.achievement-card {
  --card-accent: var(--accent);
  text-align: left;
  display: flex;
  flex-direction: column;
  min-height: 160px;
  border-top: 3px solid var(--accent);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.achievement-card.tier-gold { --card-accent: #d4a537; border-top-color: #d4a537; }
.achievement-card.tier-silver { --card-accent: #64748b; border-top-color: #64748b; }
.achievement-card.tier-blue { --card-accent: var(--accent); border-top-color: var(--accent); }
.achv-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 12px;
}
.achievement-card h3 { margin: 0 0 8px; font-size: 1.02rem; }
.achievement-card p { color: var(--text-dim); font-size: 0.9rem; margin: 0; }
.achievement-card p strong { color: var(--text); }
.achievement-card .achv-label { margin-bottom: 10px; }

.skills-bento {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}
.skill-group {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 170px;
}
.skill-group--wide { grid-column: span 8; }
.skill-group:nth-child(5),
.skill-group:nth-child(6) { grid-column: span 6; }
.skill-group-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.skill-group-heading span {
  color: var(--accent);
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.skill-group-heading h3 {
  flex: 1;
  margin: 0;
  color: var(--text);
  font-size: 1.02rem;
}
.skill-list {
  display: flex;
  align-content: flex-start;
  flex-wrap: wrap;
  gap: 8px;
}
.skill-list > span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-alt);
  color: var(--text);
  font-size: 0.78rem;
  transition: border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.skill-list > span:hover {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  transform: translateY(-2px);
}
.skill-list .skill-chip--elementary {
  border-style: dashed;
  color: var(--text-dim);
}
.skill-chip--elementary small {
  color: var(--text-dim);
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.chip-row { display: flex; flex-wrap: wrap; gap: 9px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 15px;
  font-size: 0.85rem;
  color: var(--text);
  transition: border-color 0.15s ease, color 0.15s ease;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip-icon { width: 15px; height: 15px; flex-shrink: 0; border-radius: 3px; }

.project-card {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
  border-top: 2px solid color-mix(in srgb, var(--card-accent) 72%, var(--border));
}
.project-card h3 {
  margin: 0 0 3px;
  font-size: 1.22rem;
  letter-spacing: -0.015em;
}
.project-card p { color: var(--text-dim); font-size: 0.88rem; line-height: 1.62; margin: 0; }
.project-card p strong { color: var(--text); }
.project-card .achv-label { margin-bottom: 2px; }

.project-media {
  position: relative;
  height: 180px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.project-card--wide .project-media { height: 215px; }
.project-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, color-mix(in srgb, var(--card) 28%, transparent));
  pointer-events: none;
}
.project-media svg { display: block; transition: transform 0.35s ease; }
.project-card:hover .project-media svg { transform: scale(1.035); }
.gamehub-media {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 2px;
}
.gamehub-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.88) contrast(1.02);
  transition: transform 0.4s ease, filter 0.4s ease;
}
.project-card:hover .gamehub-media img { transform: scale(1.06); filter: saturate(1) contrast(1.03); }

.project-card { position: relative; }

.project-body { padding: 22px 24px 24px; display: flex; flex-direction: column; gap: 11px; flex: 1; }
.project-chips { gap: 6px; }
.project-chips .chip { padding: 4px 11px; font-size: 0.76rem; }
.project-links { margin-top: auto; display: flex; gap: 8px; flex-wrap: wrap; padding-top: 6px; }
.project-links a {
  display: inline-flex;
  align-items: center;
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 600;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.project-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}

.project-highlights { margin-top: 4px; }
.project-highlights summary {
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--card-accent);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}
.project-highlights summary::-webkit-details-marker { display: none; }
.project-highlights summary::before {
  content: '▸';
  transition: transform 0.2s ease;
  font-size: 0.75rem;
}
.project-highlights[open] summary::before { transform: rotate(90deg); }
.project-highlights[open] .highlight-grid { animation: detailsReveal 0.24s ease both; }
@keyframes detailsReveal {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}
.highlight-grid {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.highlight-row { display: flex; gap: 8px; font-size: 0.82rem; }
.highlight-row .h-tag { flex-shrink: 0; width: 84px; color: var(--text-dim); font-weight: 600; }
.highlight-row .h-val { color: var(--text); }

@keyframes blinkCursor {
  0%, 45% { opacity: 1; }
  50%, 95% { opacity: 0; }
  100% { opacity: 1; }
}
.blink-cursor { animation: blinkCursor 1.1s steps(1) infinite; }

@media (prefers-reduced-motion: reduce) {
  .project-highlights[open] .highlight-grid { animation: none; }
}

.contact-links { display: flex; gap: 14px; flex-wrap: wrap; }
.contact-links .btn { padding: 14px 28px; font-size: 1rem; }
.contact-secondary { margin-top: 14px; font-size: 0.85rem; color: var(--text-dim); }
.contact-secondary a { color: var(--accent); }
.contact-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--border);
  border-radius: 22px;
  background:
    radial-gradient(circle at 92% 8%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 24rem),
    var(--card);
  box-shadow: 0 28px 70px -52px color-mix(in srgb, var(--accent) 80%, transparent);
}
.contact-panel::after {
  content: '';
  position: absolute;
  right: -65px;
  bottom: -95px;
  width: 230px;
  height: 230px;
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  border-radius: 50%;
  pointer-events: none;
}
.contact-panel > * { position: relative; z-index: 1; }
.contact-panel .section-title::after { background: linear-gradient(90deg, var(--border), transparent); }

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--card) 92%, transparent);
  color: var(--text);
  box-shadow: 0 12px 30px -16px rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 40px 20px 44px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}
.footer-tagline { color: var(--text); font-weight: 600; font-family: var(--font-head); font-size: 1rem; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { color: var(--text-dim); font-size: 0.85rem; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.82rem;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .nav-inner { padding: 12px 16px; gap: 8px; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 20px;
    gap: 14px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-burger { display: flex; }
  .nav-resume-links { display: none; }
  .mobile-resume-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
  }
  .nav-links .mobile-resume-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    text-align: center;
  }
  .nav-links .mobile-resume-links a:first-child {
    border-color: color-mix(in srgb, var(--accent) 52%, var(--border));
    background: color-mix(in srgb, var(--accent) 9%, transparent);
  }
  .nav-links .mobile-resume-links a::after { display: none; }

  .hero-inner { gap: 36px; }
  .hero-visual { width: 240px; height: 240px; flex-basis: 240px; }
  .visual-orbit { inset: 28px; }
  .visual-orbit-inner { inset: 62px; }
  .visual-core { width: 92px; height: 92px; }
  .visual-core strong { font-size: 1.65rem; }
  .visual-node-software { top: 24px; }
  .visual-node-data { left: 3px; bottom: 50px; }
  .visual-node-ml { right: 12px; bottom: 32px; }

  .timeline-item { gap: 12px; }

  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .about-metrics { grid-template-columns: 1fr 1fr; }

  .coding-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .achievements-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .achievements-grid .achievement-card,
  .achievements-grid .achievement-card:first-child { grid-column: span 1; }
  .achievements-grid .achievement-card:first-child { grid-column: span 2; }
  .projects-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .project-card--wide,
  .project-card--compact { grid-column: span 1; }
  .projects-grid .project-card:last-child { grid-column: span 2; }
  .skills-bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .skill-group,
  .skill-group--wide,
  .skill-group:nth-child(5),
  .skill-group:nth-child(6) { grid-column: span 1; }
}

@media (max-width: 720px) {
  body { background-attachment: scroll; }
  .hero { padding-top: 72px; }
  .hero-inner { flex-direction: column; gap: 38px; }
  .hero-visual { width: 220px; height: 220px; flex-basis: auto; }
  .hero-text { flex-basis: auto; width: 100%; }
  .about-pillars { grid-template-columns: 1fr; }
  .coding-grid,
  .achievements-grid,
  .projects-grid,
  .skills-bento { grid-template-columns: 1fr; }
  .achievements-grid .achievement-card,
  .achievements-grid .achievement-card:first-child,
  .project-card--wide,
  .project-card--compact,
  .projects-grid .project-card:last-child,
  .skill-group,
  .skill-group--wide,
  .skill-group:nth-child(5),
  .skill-group:nth-child(6) { grid-column: 1; }
  .project-card--wide .project-media { height: 190px; }
}

@media (max-width: 560px) {
  .brand-copy { display: none; }
  .theme-toggle { width: 32px; height: 32px; }
  .nav-actions { gap: 5px; }

  .hero { padding-top: 60px; padding-bottom: 72px; }
  .hero-visual { display: none; }
  .status-badge { align-items: flex-start; border-radius: 12px; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .hero-stats { display: grid; grid-template-columns: 1fr; }
  .hero-stat { width: 100%; }
  .contact-links .btn { width: 100%; justify-content: center; }
  .highlight-row { flex-direction: column; gap: 2px; }
  .highlight-row .h-tag { width: auto; }
  .back-to-top { right: 16px; bottom: 16px; }
  .section { padding-top: 68px; padding-bottom: 68px; }
  .section-title::after { margin-left: 4px; }
  .contact-panel { border-radius: 16px; }
}