/* =========================================================
   Priyanshu Semwal — Portfolio
   Design language inherited from ../labs (dark-first, single
   blue accent) executed as a "systems ledger": monospace data
   type + a career-as-data-pipeline signature.
   ========================================================= */

:root {
  /* Surfaces — from labs global.scss */
  --bg:            #09090b;
  --surface:       #121214;
  --surface-2:     #18181b;
  --border:        #27272a;
  --border-focus:  #3f3f46;

  /* Text */
  --text:          #FAFAFA;
  --text-2:        #A1A1AA;
  --text-3:        #71717A;

  /* Accent — single-hue blue system (no purple/cyan) */
  --accent:        #3b82f6;
  --accent-hover:  #2563eb;
  --accent-soft:   rgba(59, 130, 246, 0.12);
  --accent-line:   rgba(59, 130, 246, 0.35);
  --accent-text:   #60a5fa;

  /* Type */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Rhythm */
  --maxw: 1120px;
  --radius: 14px;
  --radius-sm: 8px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
strong { color: var(--text); font-weight: 600; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Ambient background ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
}
.bg-glow {
  position: fixed;
  top: -280px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 700px;
  z-index: -1;
  background: radial-gradient(circle at 50% 40%, rgba(59,130,246,0.16), transparent 62%);
  filter: blur(20px);
  pointer-events: none;
}

/* ---------- Shared type helpers ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--text-2);
  text-transform: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.accent { color: var(--accent-text); }

.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.dot--live {
  background: #34d399;
  box-shadow: 0 0 0 4px rgba(52,211,153,0.15);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(52,211,153,0.14); }
  50%      { box-shadow: 0 0 0 6px rgba(52,211,153,0.05); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
  cursor: pointer;
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover { background: var(--accent-hover); transform: translateY(-2px); }
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost:hover { border-color: var(--border-focus); background: var(--surface); transform: translateY(-2px); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(9,9,11,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.nav.is-scrolled { border-bottom-color: var(--border); }
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav__logo { display: flex; align-items: center; gap: 12px; }
.nav__mono {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--bg);
  background: var(--accent);
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border-radius: 7px;
}
.nav__name { font-family: var(--font-display); font-weight: 600; font-size: 0.98rem; }
.nav__links { display: flex; gap: 28px; }
.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-2);
  transition: color 0.2s ease;
}
.nav__links a:hover { color: var(--text); }
.nav__cta { font-size: 0.8rem; padding: 8px 16px; }

/* ---------- Hero ---------- */
.hero {
  padding-top: clamp(70px, 12vh, 130px);
  padding-bottom: 40px;
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.3rem, 6vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 22px 0 26px;
  max-width: 16ch;
}
.hero__lede {
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  color: var(--text-2);
  max-width: 60ch;
  line-height: 1.65;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

/* Systems readout */
.readout {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), rgba(18,18,20,0.4));
  overflow: hidden;
}
.readout__item {
  padding: 22px 20px;
  border-right: 1px solid var(--border);
  position: relative;
}
.readout__item:last-child { border-right: none; }
.readout__value {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}
.readout__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-3);
  margin-top: 10px;
  line-height: 1.4;
}

/* ---------- Marquee ---------- */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  margin: 50px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-2);
  animation: scroll-x 34s linear infinite;
}
.marquee__track .sep { color: var(--accent); }
@keyframes scroll-x {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- Section scaffold ---------- */
.section { padding: 72px 0; }
.section__head { max-width: 62ch; margin-bottom: 48px; }
.section__index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-text);
  display: block;
  margin-bottom: 12px;
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}
.section__sub { color: var(--text-2); margin-top: 12px; font-size: 1.02rem; }

/* ---------- Two tracks ---------- */
.tracks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.track {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 32px;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
}
.track:hover { border-color: var(--border-focus); transform: translateY(-3px); background: var(--surface-2); }
.track__head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.track__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--accent-text);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  padding: 4px 9px;
  border-radius: 5px;
}
.track__tag--ml { color: #fff; background: var(--accent); border-color: var(--accent); }
.track__title { font-family: var(--font-display); font-size: 1.35rem; font-weight: 600; }
.track__desc { color: var(--text-2); margin-bottom: 20px; }
.track__list { display: flex; flex-direction: column; gap: 11px; }
.track__list li {
  position: relative;
  padding-left: 22px;
  color: var(--text-2);
  font-size: 0.95rem;
}
.track__list li::before {
  content: "▹";
  position: absolute; left: 0;
  color: var(--accent);
}

/* ---------- Scaler ---------- */
.scaler {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 100% 0%, rgba(59,130,246,0.10), transparent 45%),
    var(--surface);
  padding: clamp(28px, 4vw, 48px);
}
.scaler__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.scaler__status {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-2);
  display: inline-flex; align-items: center; gap: 8px;
}
.scaler__title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.scaler__lede { color: var(--text-2); max-width: 64ch; font-size: 1.05rem; }
.scaler__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 36px;
}
.scaler__step { display: flex; gap: 14px; }
.scaler__num {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.1rem;
  line-height: 1.4;
}
.scaler__step h4 { font-family: var(--font-display); font-size: 1.05rem; margin-bottom: 6px; font-weight: 600; }
.scaler__step p { color: var(--text-2); font-size: 0.92rem; }

/* ---------- Experience pipeline (signature) ---------- */
.pipeline { position: relative; padding-left: 8px; }
.pipeline__spine {
  position: absolute;
  left: 7px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-line), var(--border) 85%);
  overflow: hidden;
}
.pipeline__pulse {
  position: absolute;
  left: -2px;
  width: 6px; height: 90px;
  border-radius: 6px;
  background: linear-gradient(180deg, transparent, var(--accent), transparent);
  filter: blur(1px);
  animation: flow 5s var(--ease) infinite;
}
@keyframes flow {
  0%   { top: -90px; opacity: 0; }
  15%  { opacity: 1; }
  85%  { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

.stage {
  position: relative;
  padding: 0 0 52px 42px;
}
.stage:last-child { padding-bottom: 0; }
.stage__node {
  position: absolute;
  left: 0; top: 4px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 5px rgba(59,130,246,0.10);
  z-index: 1;
}
.stage__meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.stage__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-3);
}
.stage__badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 3px 8px;
}
.stage__badge--ml { color: var(--accent-text); border-color: var(--accent-line); background: var(--accent-soft); }

.stage__body {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 26px 28px;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.stage:hover .stage__body { border-color: var(--border-focus); background: var(--surface-2); }
.stage__role { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; }
.stage__org { color: var(--text); font-weight: 500; margin-top: 3px; }
.stage__org-sub { color: var(--text-3); font-weight: 400; }
.stage__clients {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-3);
  margin-top: 8px;
}
.stage__points { margin-top: 18px; display: flex; flex-direction: column; gap: 12px; }
.stage__points li {
  position: relative;
  padding-left: 22px;
  color: var(--text-2);
  font-size: 0.96rem;
  line-height: 1.6;
}
.stage__points li::before {
  content: "";
  position: absolute; left: 2px; top: 10px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
}

/* Metric chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.chip {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 10px;
}
.stage:hover .chip, .project:hover .chip { border-color: var(--accent-line); }

/* ---------- Work / projects ---------- */
.work { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.project {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
}
.project:hover { border-color: var(--border-focus); transform: translateY(-3px); background: var(--surface-2); }
.project__kicker {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--accent-text);
  margin-bottom: 14px;
}
.project__title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; margin-bottom: 12px; line-height: 1.25; }
.project__desc { color: var(--text-2); font-size: 0.94rem; flex-grow: 1; }

/* ---------- Buildspace Labs — product studio ---------- */
.labs-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 30px;
}
.labs-chip {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.labs-chip:hover { color: var(--text); border-color: var(--border-focus); }
.labs-chip.is-active { color: #fff; background: var(--accent); border-color: var(--accent); }
.labs-chip__n {
  font-size: 0.68rem;
  color: var(--text-3);
  background: var(--surface-2);
  border-radius: 999px;
  padding: 1px 7px;
}
.labs-chip.is-active .labs-chip__n { color: #fff; background: rgba(255,255,255,0.2); }

.labs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.labs-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: inherit;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
  animation: card-in 0.4s var(--ease) both;
}
.labs-card:hover { border-color: var(--border-focus); transform: translateY(-4px); background: var(--surface-2); }
@keyframes card-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* Cover */
.labs-card__cover {
  display: block;
  aspect-ratio: 16 / 10;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.labs-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 0;
  display: block;
  transition: transform 0.5s var(--ease);
}
.labs-card:hover .labs-card__cover img { transform: scale(1.04); }
.labs-card__cover--ph {
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 30% 20%, rgba(59,130,246,0.16), transparent 60%),
    var(--surface-2);
}
.labs-card__cover--ph span {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--text-2);
  padding: 0 20px;
  text-align: center;
}

/* Body */
.labs-card__body { display: flex; flex-direction: column; padding: 18px 20px 20px; flex-grow: 1; }
.labs-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; gap: 8px; }
.labs-card__kicker {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent-text);
}
.labs-card__live {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--text-3);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.labs-card__live .dot { width: 6px; height: 6px; }
.labs-card__title { display: block; font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; line-height: 1.25; }
.labs-card__desc {
  color: var(--text-2);
  font-size: 0.86rem;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.labs-card__metric {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 14px 0 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.labs-card__metric-val { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; color: var(--text); }
.labs-card__metric-label { font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-3); }
.labs-card__techs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.labs-card__tech {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--text-2);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 3px 8px;
}
.labs-card__cta {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent-text);
  margin-top: 16px;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.labs-card:hover .labs-card__cta { opacity: 1; transform: none; }

/* Show all / less */
.labs-more { display: flex; justify-content: center; margin-top: 30px; }
.labs-more__btn { cursor: pointer; }

/* ---------- Project detail page ---------- */
.d-wrap { max-width: 860px; padding-top: 48px; padding-bottom: 40px; }
.d-back {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-2);
  display: inline-block;
  margin-bottom: 30px;
  transition: color 0.2s ease;
}
.d-back:hover { color: var(--accent-text); }
.d-back--bottom { margin-top: 50px; margin-bottom: 0; }
.d-kicker {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--accent-text);
  margin-bottom: 14px;
}
.d-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.08;
}
.d-sub { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--text-2); margin-top: 16px; max-width: 62ch; }
.d-meta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 20px; }
.d-client { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-3); }
.d-actions { margin-top: 24px; }

.d-cover {
  margin: 40px 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.d-cover img { width: 100%; display: block; border-radius: 0; }
.d-cover figcaption, .d-shot figcaption {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-3);
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  line-height: 1.5;
}

.d-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 36px 0;
}
.d-metric { background: var(--surface); padding: 20px 22px; }
.d-metric__v { display: block; font-family: var(--font-display); font-size: 1.7rem; font-weight: 600; letter-spacing: -0.02em; }
.d-metric__l { display: block; font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-3); margin-top: 8px; }

.d-block { margin: 40px 0; }
.d-block__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.d-para { color: var(--text-2); font-size: 1.02rem; line-height: 1.75; }
.d-list { display: flex; flex-direction: column; gap: 12px; }
.d-list li {
  position: relative;
  padding-left: 24px;
  color: var(--text-2);
  line-height: 1.6;
}
.d-list li::before {
  content: "";
  position: absolute; left: 4px; top: 10px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
}
.d-gallery { display: flex; flex-direction: column; gap: 20px; }
.d-shot { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.d-shot img { width: 100%; display: block; border-radius: 0; }
.d-eng {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 28px;
}
.d-eng > div { color: var(--text-2); font-size: 0.94rem; line-height: 1.6; }
.d-eng__scope { grid-column: 1 / -1; }
.d-eng__l {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
  margin-bottom: 6px;
}
@media (max-width: 560px) { .d-eng { grid-template-columns: 1fr; } }

/* ---------- Skills ---------- */
.skills { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.skillgroup {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 26px 28px;
}
.skillgroup__label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 18px;
}
.skillgroup__list { display: flex; flex-wrap: wrap; gap: 8px; }
.skillgroup__list li {
  font-size: 0.85rem;
  color: var(--text-2);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 11px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.skillgroup:hover .skillgroup__list li { border-color: var(--border-focus); }
.skillgroup__list li:hover { color: var(--text); border-color: var(--accent-line); }

/* ---------- Credentials ---------- */
.credentials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-top: 22px;
}
.cred {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 26px 28px;
}
.cred__label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 18px;
}
.cred__list { display: flex; flex-direction: column; gap: 14px; }
.cred__list li { color: var(--text-2); font-size: 0.95rem; line-height: 1.5; }
.cred__badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: #ff9900;
  border: 1px solid rgba(255,153,0,0.35);
  background: rgba(255,153,0,0.08);
  border-radius: 5px;
  padding: 2px 7px;
  margin-right: 8px;
}
.cred__id {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-3);
  margin-left: 6px;
}

/* ---------- Contact ---------- */
.contact {
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 0%, rgba(59,130,246,0.14), transparent 55%),
    var(--surface);
  padding: clamp(44px, 7vw, 84px) 24px;
}
.contact__eyebrow { font-family: var(--font-mono); color: var(--accent-text); font-size: 0.85rem; margin-bottom: 16px; }
.contact__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  max-width: 20ch;
  margin: 0 auto;
  line-height: 1.15;
}
.contact__sub { color: var(--text-2); margin: 16px auto 0; max-width: 44ch; }
.contact__actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 30px 0; }
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-3);
}
.footer__name { color: var(--text); font-family: var(--font-display); font-weight: 600; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav__links { display: none; }
  .tracks, .work, .skills, .credentials, .scaler__steps { grid-template-columns: 1fr; }
  .labs-grid { grid-template-columns: repeat(2, 1fr); }
  .readout { grid-template-columns: repeat(2, 1fr); }
  .readout__item:nth-child(2) { border-right: none; }
  .readout__item { border-bottom: 1px solid var(--border); }
}
@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .section { padding: 56px 0; }
  .nav__name { display: none; }
  .labs-grid { grid-template-columns: 1fr; }
  .readout { grid-template-columns: 1fr; }
  .readout__item { border-right: none; }
  .stage__body { padding: 22px 20px; }
  .hero__title { font-size: clamp(2rem, 9vw, 2.6rem); }
}

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

/* ---------- Focus ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}