/* ArgoDelta Build Lab: a curated, track-based engineering curriculum. */

.argo-build-lab {
  --lab-bg: #090b0a;
  --lab-panel: #101511;
  --lab-panel-2: #141a15;
  --lab-paper: #eef0e8;
  --lab-soft: #c4cbc0;
  --lab-muted: #8f998d;
  --lab-line: rgba(235, 244, 231, 0.12);
  --lab-line-strong: rgba(235, 244, 231, 0.23);
  --lab-lime: #c8ff43;
  --lab-gold: #dfc886;
  --lab-coral: #df9475;
  --lab-sky: #90b9bf;
  --lab-sans: "Manrope", "Segoe UI", sans-serif;
  --lab-mono: "DM Mono", Consolas, monospace;
  --lab-serif: "Instrument Serif", Georgia, serif;
}

.argo-build-lab * {
  box-sizing: border-box;
}

.argo-build-lab {
  margin: 0;
  background:
    radial-gradient(900px 520px at 12% -5%, rgba(92, 129, 54, 0.14), transparent 64%),
    radial-gradient(700px 480px at 92% 8%, rgba(200, 255, 67, 0.045), transparent 60%),
    var(--lab-bg) !important;
  color: var(--lab-paper) !important;
  font-family: var(--lab-sans) !important;
}

.argo-build-lab a {
  color: inherit;
}

.argo-build-lab .skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 13px;
  border: 1px solid var(--lab-lime);
  border-radius: 4px;
  background: #080b08;
  color: var(--lab-lime) !important;
  font: 600 11px/1.4 var(--lab-sans);
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform 140ms ease;
}

.argo-build-lab .skip-link:focus {
  transform: translateY(0);
}

.argo-build-lab :focus-visible {
  outline: 2px solid var(--lab-lime);
  outline-offset: 3px;
}

.lab-header {
  position: sticky;
  z-index: 35;
  top: 0;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto auto;
  align-items: center;
  gap: 28px;
  min-height: 72px;
  padding: 10px clamp(18px, 5vw, 72px);
  border-bottom: 1px solid var(--lab-line);
  background: rgba(8, 11, 8, 0.9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.lab-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  color: var(--lab-paper) !important;
  text-decoration: none;
}

.lab-brand-mark {
  width: 29px;
  height: 29px;
  color: var(--lab-lime);
}

.lab-brand-word {
  font: 700 16px/1 var(--lab-sans);
  letter-spacing: 0.13em;
}

.lab-brand-word span {
  color: var(--lab-paper);
}

.lab-brand-tool {
  padding-left: 12px;
  border-left: 1px solid var(--lab-line);
  color: var(--lab-muted);
  font: 500 9px/1 var(--lab-mono);
  letter-spacing: 0.12em;
}

.lab-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.lab-nav a {
  color: var(--lab-muted) !important;
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
}

.lab-nav a:hover {
  color: var(--lab-lime) !important;
}

.lab-header-cta,
.lab-primary,
.lab-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 800;
  text-decoration: none;
}

.lab-header-cta,
.lab-primary {
  border: 1px solid var(--lab-lime);
  background: var(--lab-lime);
  color: #090c07 !important;
}

.lab-header-cta:hover,
.lab-primary:hover {
  background: #e1ff93;
}

.lab-secondary {
  border: 1px solid var(--lab-line-strong);
  background: transparent;
  color: var(--lab-soft) !important;
}

.lab-secondary:hover {
  border-color: var(--lab-lime);
  color: var(--lab-lime) !important;
}

.argo-build-lab main {
  width: min(100%, 1380px);
  margin: 0 auto;
}

.lab-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(330px, 0.65fr);
  gap: clamp(32px, 7vw, 110px);
  align-items: center;
  min-height: 620px;
  padding: clamp(58px, 8vw, 116px) clamp(18px, 5vw, 72px) 82px;
}

.lab-eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  color: var(--lab-muted);
  font: 500 9px/1.5 var(--lab-mono);
  letter-spacing: 0.12em;
}

.lab-eyebrow i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lab-lime);
  box-shadow: 0 0 0 4px rgba(200, 255, 67, 0.08);
}

.lab-hero h1 {
  margin: 22px 0;
  font-size: clamp(54px, 7vw, 104px);
  font-weight: 600;
  line-height: 0.9;
  letter-spacing: -0.07em;
}

.lab-hero h1 em {
  display: block;
  color: var(--lab-lime);
  font-family: var(--lab-serif);
  font-weight: 400;
  letter-spacing: -0.04em;
}

.lab-lede {
  max-width: 720px;
  margin: 0;
  color: var(--lab-soft);
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.8;
}

.lab-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.lab-signal-card {
  position: relative;
  min-height: 480px;
  padding: 18px;
  border: 1px solid var(--lab-line-strong);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(200, 255, 67, 0.055), transparent 45%),
    rgba(255, 255, 255, 0.018);
  overflow: hidden;
}

.lab-signal-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent 0 52px,
    rgba(255, 255, 255, 0.025) 52px 53px
  );
  mask-image: linear-gradient(to bottom, transparent, black 32%, black 70%, transparent);
  pointer-events: none;
}

.lab-signal-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--lab-muted);
  font: 500 8px/1.4 var(--lab-mono);
  letter-spacing: 0.09em;
}

.lab-signal-top span:last-child {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--lab-lime);
}

.lab-signal-top i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lab-lime);
}

.lab-signal-orbit {
  position: relative;
  display: grid;
  place-items: center;
  width: min(280px, 82%);
  aspect-ratio: 1;
  margin: 30px auto 24px;
}

.lab-orbit-ring {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(200, 255, 67, 0.14);
  border-radius: 50%;
}

.lab-orbit-ring.ring-b {
  inset: 17%;
  border-style: dashed;
  animation: lab-spin 32s linear infinite;
}

.lab-orbit-ring.ring-c {
  inset: 34%;
  border-color: rgba(223, 200, 134, 0.28);
}

.lab-signal-orbit > b {
  display: grid;
  place-items: center;
  width: 66px;
  aspect-ratio: 1;
  border: 1px solid rgba(200, 255, 67, 0.58);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #f4ffd3, #b8e54d 28%, #334519 75%);
  color: #0a0d08;
  font-size: 28px;
  box-shadow: 0 0 48px rgba(200, 255, 67, 0.13);
}

.lab-orbit-node {
  position: absolute;
  display: grid;
  place-items: center;
  width: 33px;
  height: 33px;
  border: 1px solid var(--lab-line-strong);
  border-radius: 50%;
  background: var(--lab-panel);
  color: var(--lab-muted);
  font: 500 8px/1 var(--lab-mono);
}

.lab-orbit-node.node-a {
  top: 4%;
  right: 19%;
}

.lab-orbit-node.node-b {
  bottom: 11%;
  left: 10%;
}

.lab-orbit-node.node-c {
  right: 2%;
  bottom: 34%;
}

.lab-signal-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-top: 1px solid var(--lab-line);
  border-bottom: 1px solid var(--lab-line);
}

.lab-signal-stats div {
  min-width: 0;
  padding: 13px 8px;
  border-right: 1px solid var(--lab-line);
}

.lab-signal-stats div:last-child {
  border-right: 0;
}

.lab-signal-stats dt {
  color: var(--lab-muted);
  font: 500 7px/1.4 var(--lab-mono);
  letter-spacing: 0.07em;
}

.lab-signal-stats dd {
  margin: 5px 0 0;
  font-size: 24px;
  font-weight: 600;
}

.lab-signal-card > p {
  position: relative;
  margin: 15px 0 0;
  color: var(--lab-muted);
  font: 400 9px/1.65 var(--lab-mono);
}

.lab-method,
.lab-catalog,
.lab-closing {
  padding: 78px clamp(18px, 5vw, 72px);
  border-top: 1px solid var(--lab-line);
}

.lab-section-head,
.lab-catalog-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 36px;
}

.lab-section-head h2,
.lab-catalog-head h2,
.lab-closing h2 {
  max-width: 840px;
  margin: 10px 0 0;
  font-size: clamp(34px, 4.6vw, 62px);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.055em;
}

.lab-method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.lab-method-grid article {
  min-height: 230px;
  padding: 22px;
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.018);
}

.lab-method-grid article > span {
  color: var(--lab-lime);
  font: 500 9px/1 var(--lab-mono);
}

.lab-method-grid h3 {
  margin: 54px 0 10px;
  font-size: 21px;
  letter-spacing: -0.02em;
}

.lab-method-grid p {
  margin: 0;
  color: var(--lab-muted);
  font-size: 12px;
  line-height: 1.72;
}

.lab-catalog {
  background: #080b09;
}

.lab-catalog-head {
  align-items: flex-end;
}

.lab-progress-card {
  width: min(100%, 280px);
  padding: 14px;
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.018);
}

.lab-progress-card > div:first-child {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--lab-muted);
  font: 500 8px/1.4 var(--lab-mono);
}

.lab-progress-card strong {
  color: var(--lab-paper);
  font-weight: 500;
}

.lab-progress-track {
  height: 3px;
  margin: 11px 0 9px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.lab-progress-track i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--lab-lime);
  transition: width 220ms ease;
}

.lab-progress-card button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--lab-muted);
  font: 500 8px/1.4 var(--lab-mono);
  cursor: pointer;
}

.lab-progress-card button:hover {
  color: var(--lab-lime);
}

.lab-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  gap: 10px;
  margin-top: 34px;
}

.lab-search,
.lab-level {
  display: grid;
  gap: 6px;
}

.lab-search > span:first-child,
.lab-level > span {
  color: var(--lab-muted);
  font: 500 8px/1.4 var(--lab-mono);
  letter-spacing: 0.07em;
}

.lab-search-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 49px;
  padding: 0 14px;
  border: 1px solid var(--lab-line-strong);
  border-radius: 4px;
  background: rgba(2, 5, 3, 0.38);
}

.lab-search-row svg {
  width: 17px;
  color: var(--lab-muted);
}

.lab-search input,
.lab-level select {
  width: 100%;
  min-height: 47px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--lab-paper);
  font-size: 13px;
}

.lab-level select {
  min-height: 49px;
  padding: 0 12px;
  border: 1px solid var(--lab-line-strong);
  border-radius: 4px;
  background: #0b100c;
}

.lab-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.lab-filter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0 11px;
  border: 1px solid var(--lab-line);
  border-radius: 999px;
  background: transparent;
  color: var(--lab-muted);
  font-size: 9px;
  font-weight: 700;
  cursor: pointer;
}

.lab-filter span {
  color: #6f796d;
  font: 500 8px/1 var(--lab-mono);
}

.lab-filter:hover,
.lab-filter.is-active {
  border-color: rgba(200, 255, 67, 0.42);
  background: rgba(200, 255, 67, 0.065);
  color: var(--lab-lime);
}

.lab-filter.is-active span {
  color: var(--lab-lime);
}

.lab-results-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 18px 0 12px;
  color: var(--lab-muted);
  font: 500 8px/1.5 var(--lab-mono);
}

.lab-results-line span:first-child {
  color: var(--lab-paper);
}

.lab-track-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.lab-track {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 470px;
  padding: 18px;
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.035), transparent 48%),
    var(--lab-panel);
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.16);
  transition: border-color 160ms ease, transform 160ms ease;
}

.lab-track:hover {
  border-color: rgba(200, 255, 67, 0.28);
  transform: translateY(-2px);
}

.lab-track.is-complete {
  border-color: rgba(200, 255, 67, 0.38);
  background:
    linear-gradient(145deg, rgba(200, 255, 67, 0.06), transparent 44%),
    var(--lab-panel);
}

.lab-track-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--lab-muted);
  font: 500 8px/1.3 var(--lab-mono);
  letter-spacing: 0.07em;
}

.lab-level-chip {
  padding: 4px 6px;
  border: 1px solid var(--lab-line);
  border-radius: 999px;
  color: var(--lab-gold);
}

.lab-track h3 {
  margin: 20px 0 10px;
  font-size: clamp(21px, 2vw, 28px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.lab-track-hook {
  margin: 0 0 16px;
  color: var(--lab-soft);
  font-size: 12px;
  line-height: 1.7;
}

.lab-track-brief {
  padding: 13px 0;
  border-top: 1px solid var(--lab-line);
  border-bottom: 1px solid var(--lab-line);
}

.lab-track-brief p {
  margin: 0;
  color: var(--lab-muted);
  font: 500 8px/1.5 var(--lab-mono);
  letter-spacing: 0.03em;
}

.lab-track-brief ul {
  display: grid;
  gap: 5px;
  margin: 9px 0 11px;
  padding: 0;
  list-style: none;
}

.lab-track-brief li {
  position: relative;
  padding-left: 13px;
  color: var(--lab-soft);
  font-size: 10px;
  line-height: 1.55;
}

.lab-track-brief li::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lab-lime);
}

.lab-proof {
  color: var(--lab-gold) !important;
  line-height: 1.6 !important;
}

.lab-proof strong {
  color: var(--lab-paper);
}

.lab-track-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin: 15px 0;
}

.lab-track-meta span {
  padding: 4px 7px;
  border: 1px solid var(--lab-line);
  border-radius: 4px;
  color: var(--lab-muted);
  font: 500 8px/1.2 var(--lab-mono);
}

.lab-track-foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  margin-top: auto;
}

.lab-track-foot a,
.lab-track-foot button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 38px;
  padding: 0 11px;
  border-radius: 4px;
  font-size: 9px;
  font-weight: 800;
  text-decoration: none;
}

.lab-track-foot a {
  border: 1px solid var(--lab-line-strong);
  color: var(--lab-soft) !important;
}

.lab-track-foot a:hover {
  border-color: var(--lab-lime);
  color: var(--lab-lime) !important;
}

.lab-track-foot button {
  border: 1px solid rgba(200, 255, 67, 0.28);
  background: rgba(200, 255, 67, 0.06);
  color: var(--lab-lime);
  cursor: pointer;
}

.lab-track-foot button:hover {
  background: rgba(200, 255, 67, 0.12);
}

.lab-track.is-complete .lab-track-foot button {
  border-color: var(--lab-lime);
  background: var(--lab-lime);
  color: #080b07;
}

.lab-track.is-hidden {
  display: none;
}

.lab-empty {
  padding: 48px 22px;
  border: 1px dashed var(--lab-line-strong);
  border-radius: 8px;
  text-align: center;
}

.lab-empty strong {
  font-size: 20px;
}

.lab-empty p {
  margin: 8px 0 18px;
  color: var(--lab-muted);
  font-size: 12px;
}

.lab-empty button {
  min-height: 36px;
  padding: 0 13px;
  border: 1px solid var(--lab-line-strong);
  border-radius: 4px;
  background: transparent;
  color: var(--lab-soft);
  cursor: pointer;
}

.lab-closing {
  display: grid;
  justify-items: start;
  background:
    radial-gradient(620px 280px at 10% 100%, rgba(200, 255, 67, 0.075), transparent 70%),
    #0c100d;
}

.lab-closing h2 {
  margin: 12px 0 18px;
}

.lab-closing h2 em {
  color: var(--lab-lime);
  font-family: var(--lab-serif);
  font-weight: 400;
}

.lab-closing > p:not(.lab-eyebrow) {
  max-width: 700px;
  margin: 0 0 26px;
  color: var(--lab-soft);
  font-size: 14px;
  line-height: 1.75;
}

.lab-footer {
  display: grid;
  grid-template-columns: minmax(210px, 1fr) auto minmax(260px, 0.8fr);
  gap: 32px;
  align-items: start;
  padding: 32px clamp(18px, 5vw, 72px) 42px;
  border-top: 1px solid var(--lab-line);
  color: var(--lab-muted);
}

.lab-footer > div {
  display: grid;
  gap: 4px;
}

.lab-footer strong {
  color: var(--lab-paper);
  font: 500 9px/1.4 var(--lab-mono);
  letter-spacing: 0.1em;
}

.lab-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.lab-footer a {
  color: var(--lab-muted) !important;
  font-size: 10px;
  text-decoration: none;
}

.lab-footer a:hover {
  color: var(--lab-lime) !important;
}

.lab-footer > p {
  margin: 0;
  font: 400 8px/1.65 var(--lab-mono);
}

@keyframes lab-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 1120px) {
  .lab-header {
    grid-template-columns: minmax(200px, 1fr) auto;
  }

  .lab-nav {
    display: none;
  }

  .lab-hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .lab-signal-card {
    min-height: 420px;
  }

  .lab-signal-orbit {
    width: 230px;
  }

  .lab-track-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lab-footer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .lab-header {
    min-height: 64px;
    padding: 9px 14px;
    gap: 10px;
  }

  .lab-brand-mark {
    width: 25px;
    height: 25px;
  }

  .lab-brand-word {
    font-size: 13px;
  }

  .lab-brand-tool {
    display: none;
  }

  .lab-header-cta {
    min-height: 38px;
    padding: 0 11px;
    font-size: 9px;
  }

  .lab-hero {
    padding: 46px 16px 50px;
    gap: 30px;
  }

  .lab-hero h1 {
    font-size: clamp(46px, 15vw, 70px);
  }

  .lab-lede {
    font-size: 14px;
    line-height: 1.75;
  }

  .lab-hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .lab-hero-actions a {
    width: 100%;
  }

  .lab-signal-card {
    min-height: 390px;
    padding: 15px;
  }

  .lab-signal-orbit {
    width: 200px;
    margin-top: 24px;
  }

  .lab-signal-stats dd {
    font-size: 20px;
  }

  .lab-method,
  .lab-catalog,
  .lab-closing {
    padding: 54px 16px;
  }

  .lab-section-head,
  .lab-catalog-head {
    display: grid;
    gap: 22px;
  }

  .lab-section-head h2,
  .lab-catalog-head h2,
  .lab-closing h2 {
    font-size: clamp(34px, 10.5vw, 48px);
  }

  .lab-method-grid,
  .lab-track-grid {
    grid-template-columns: 1fr;
  }

  .lab-method-grid article {
    min-height: 190px;
  }

  .lab-method-grid h3 {
    margin-top: 34px;
  }

  .lab-progress-card {
    width: 100%;
  }

  .lab-toolbar {
    grid-template-columns: 1fr;
  }

  .lab-filter-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 5px;
    scrollbar-width: thin;
  }

  .lab-filter {
    flex: 0 0 auto;
  }

  .lab-results-line {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .lab-track {
    min-height: 0;
    padding: 16px;
  }

  .lab-track h3 {
    font-size: 24px;
  }

  .lab-track-foot {
    grid-template-columns: 1fr;
  }

  .lab-track-foot a,
  .lab-track-foot button {
    width: 100%;
  }

  .lab-footer {
    padding: 28px 16px 34px;
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lab-orbit-ring.ring-b {
    animation: none;
  }

  .lab-track,
  .lab-progress-track i {
    transition: none;
  }
}