:root {
  --skills-paper: #eee7d8;
  --skills-muted: #98948a;
  --skills-gold: #c5aa67;
  --skills-violet: #8c789f;
  --skills-line: rgba(238, 231, 216, 0.16);
}

body.mode-skills {
  min-height: 100vh;
  background:
    linear-gradient(rgba(238, 231, 216, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(238, 231, 216, 0.025) 1px, transparent 1px),
    #050606;
  background-size: 48px 48px;
  color: var(--skills-paper);
}

.skills-main {
  width: min(1360px, calc(100% - 48px));
  margin: 0 auto;
  padding: 64px 0 110px;
}

.skills-hero {
  min-height: 580px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: center;
  border-bottom: 1px solid var(--skills-line);
}

.skills-kicker,
.registry-counts {
  margin: 0 0 22px;
  color: var(--skills-gold);
  font: 600 0.72rem/1.4 var(--font-mono, monospace);
  letter-spacing: 0.16em;
}

.skills-hero h1 {
  margin: 0;
  max-width: 900px;
  font: 500 clamp(3.6rem, 7vw, 7.5rem)/0.86 var(--font-display, sans-serif);
  letter-spacing: -0.07em;
}

.skills-hero h1 em {
  color: var(--skills-gold);
  font-style: normal;
}

.skills-lede {
  max-width: 720px;
  margin: 36px 0 0;
  color: #b9b3a6;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.65;
}

.skills-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.skills-action {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  padding: 0 20px;
  border: 1px solid var(--skills-line);
  font: 600 0.72rem/1 var(--font-mono, monospace);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.skills-action--primary {
  border-color: var(--skills-gold);
  color: var(--skills-gold);
}

.forge-trace {
  border-left: 1px solid var(--skills-line);
  padding-left: 42px;
}

.forge-trace ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.forge-trace li {
  min-height: 94px;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 18px;
  align-items: center;
  position: relative;
  border-bottom: 1px solid var(--skills-line);
}

.forge-trace li::before {
  content: "";
  position: absolute;
  left: 18px;
  bottom: -47px;
  width: 1px;
  height: 47px;
  background: linear-gradient(var(--skills-gold), transparent);
}

.forge-trace li:last-child::before {
  display: none;
}

.forge-trace span,
.forge-trace strong {
  font: 600 0.72rem/1.4 var(--font-mono, monospace);
  letter-spacing: 0.11em;
}

.forge-trace li > div {
  min-width: 0;
  display: grid;
  gap: 0.45rem;
}

.forge-trace small {
  color: var(--skills-muted);
  font: 500 0.58rem/1.35 var(--font-mono, monospace);
  letter-spacing: 0.09em;
}

.forge-trace li > i {
  width: 0.58rem;
  height: 0.58rem;
  border: 1px solid var(--skills-muted);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(238, 231, 216, 0.025);
}

.forge-trace span {
  color: var(--skills-gold);
}

.forge-trace li.is-current > i {
  border-color: var(--skills-violet);
  background: var(--skills-violet);
  box-shadow: 0 0 0 5px rgba(140, 120, 159, 0.1);
}

.forge-trace li.is-current small {
  color: var(--skills-violet);
}

.forge-trace li.is-held > i {
  border-color: var(--skills-gold);
}

.forge-trace[data-state="ready"] li {
  animation: forge-stage-enter 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.forge-trace[data-state="ready"] li:nth-child(2) {
  animation-delay: 70ms;
}

.forge-trace[data-state="ready"] li:nth-child(3) {
  animation-delay: 140ms;
}

.forge-trace[data-state="ready"] li:nth-child(4) {
  animation-delay: 210ms;
}

@keyframes forge-stage-enter {
  from {
    opacity: 0.4;
    transform: translateX(-0.75rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.skills-boundary,
.marketplace-boundary {
  display: grid;
  grid-template-columns: minmax(180px, 0.32fr) minmax(0, 1fr);
  gap: 42px;
  padding: 86px 0;
  border-bottom: 1px solid var(--skills-line);
}

.skills-boundary h2,
.marketplace-boundary h2,
.skills-heading h2 {
  margin: 0;
  font: 500 clamp(2rem, 4vw, 4rem)/1 var(--font-display, sans-serif);
  letter-spacing: -0.05em;
}

.skills-boundary p,
.marketplace-boundary p {
  max-width: 760px;
  color: #b9b3a6;
  line-height: 1.7;
}

.registry-section,
.case-section {
  padding: 86px 0;
  scroll-margin-top: 5.5rem;
  border-bottom: 1px solid var(--skills-line);
}

.skills-heading {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  align-items: end;
  margin-bottom: 42px;
}

.skill-registry {
  display: grid;
  gap: 18px;
}

.skill-record,
.case-record {
  border: 1px solid var(--skills-line);
  background: rgba(4, 5, 5, 0.7);
  padding: clamp(24px, 4vw, 48px);
}

.skill-record__status,
.case-record__head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--skills-line);
  font: 600 0.72rem/1.4 var(--font-mono, monospace);
  letter-spacing: 0.13em;
}

.skill-record__status strong,
.case-record__head strong {
  color: var(--skills-violet);
}

.skill-record h3 {
  margin: 42px 0 18px;
  font: 500 clamp(2.3rem, 5vw, 5rem)/0.95 var(--font-display, sans-serif);
  letter-spacing: -0.055em;
}

.skill-record__identity {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(19rem, 0.55fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
}

.skill-record__identity p,
.case-record__observation {
  max-width: 860px;
  color: #b9b3a6;
  line-height: 1.65;
}

.method-imprint {
  min-width: 0;
  margin: 2.8rem 0 0;
  padding-left: 1.5rem;
  border-left: 1px solid var(--skills-line);
}

.method-imprint figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--skills-gold);
  font: 600 0.62rem/1.4 var(--font-mono, monospace);
  letter-spacing: 0.11em;
}

.method-imprint figcaption small {
  color: var(--skills-violet);
  font: inherit;
  text-align: right;
}

.method-imprint__bars {
  height: 6rem;
  margin: 1.3rem 0 1rem;
  display: grid;
  grid-template-columns: repeat(32, minmax(1px, 1fr));
  align-items: end;
  gap: 0.2rem;
  border-bottom: 1px solid var(--skills-line);
  background: linear-gradient(180deg, transparent, rgba(197, 170, 103, 0.025));
}

.method-imprint__bar {
  height: 100%;
  min-height: 0.25rem;
  background: linear-gradient(180deg, var(--skills-gold), rgba(197, 170, 103, 0.12));
  transform: scaleY(0.08);
  transform-origin: bottom;
  animation: method-imprint-enter 620ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.method-imprint__bar[data-level="0"] { transform: scaleY(0.08); }
.method-imprint__bar[data-level="1"] { transform: scaleY(0.14); }
.method-imprint__bar[data-level="2"] { transform: scaleY(0.2); }
.method-imprint__bar[data-level="3"] { transform: scaleY(0.26); }
.method-imprint__bar[data-level="4"] { transform: scaleY(0.32); }
.method-imprint__bar[data-level="5"] { transform: scaleY(0.38); }
.method-imprint__bar[data-level="6"] { transform: scaleY(0.44); }
.method-imprint__bar[data-level="7"] { transform: scaleY(0.5); }
.method-imprint__bar[data-level="8"] { transform: scaleY(0.56); }
.method-imprint__bar[data-level="9"] { transform: scaleY(0.62); }
.method-imprint__bar[data-level="10"] { transform: scaleY(0.68); }
.method-imprint__bar[data-level="11"] { transform: scaleY(0.74); }
.method-imprint__bar[data-level="12"] { transform: scaleY(0.8); }
.method-imprint__bar[data-level="13"] { transform: scaleY(0.86); }
.method-imprint__bar[data-level="14"] { transform: scaleY(0.92); }
.method-imprint__bar[data-level="15"] { transform: scaleY(1); }

@keyframes method-imprint-enter {
  from {
    opacity: 0;
    scale: 1 0.15;
  }
  to {
    opacity: 1;
    scale: 1 1;
  }
}

.method-imprint > p {
  margin: 0;
  color: var(--skills-muted);
  font: 500 0.64rem/1.55 var(--font-mono, monospace);
}

.skill-facts,
.case-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 34px 0;
  background: var(--skills-line);
}

.skill-facts div,
.case-facts div {
  min-width: 0;
  padding: 18px;
  background: #070808;
}

.skill-facts dt,
.case-facts dt {
  color: var(--skills-muted);
  font: 600 0.66rem/1.4 var(--font-mono, monospace);
  letter-spacing: 0.11em;
}

.skill-facts dd,
.case-facts dd {
  overflow-wrap: anywhere;
  margin: 9px 0 0;
  font: 500 0.78rem/1.5 var(--font-mono, monospace);
}

.capability-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.capability-list li {
  padding: 8px 11px;
  border: 1px solid var(--skills-line);
  color: var(--skills-muted);
  font: 500 0.7rem/1 var(--font-mono, monospace);
}

.case-ledger {
  display: grid;
  gap: clamp(54px, 8vw, 96px);
}

.case-group {
  min-width: 0;
}

.case-group__heading {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 0.78fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: end;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--skills-line);
}

.case-group__heading h3 {
  margin: 0;
  font: 500 clamp(1.8rem, 3vw, 3rem)/1 var(--font-display, sans-serif);
  letter-spacing: -0.04em;
}

.case-group__heading > p {
  max-width: 760px;
  margin: 0;
  color: #b9b3a6;
  line-height: 1.65;
}

.case-group__ledger {
  display: grid;
  gap: 18px;
}

.evaluation-boundaries {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 28px;
  background: var(--skills-line);
  border: 1px solid var(--skills-line);
}

.evaluation-boundaries__item {
  padding: clamp(20px, 3vw, 32px);
  background: #070808;
}

.evaluation-boundaries__item h4 {
  margin: 0 0 18px;
  color: var(--skills-violet);
  font: 600 0.66rem/1.4 var(--font-mono, monospace);
  letter-spacing: 0.12em;
}

.evaluation-boundaries__item ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 1.15rem;
  color: #b9b3a6;
  line-height: 1.55;
}

.case-record__observation {
  margin: 1.4rem 0 1.8rem;
}

.case-record__signals {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1.7rem;
  border-top: 1px solid var(--skills-line);
  border-left: 1px solid var(--skills-line);
}

.case-record__signal {
  min-width: 0;
  min-height: 5rem;
  padding: 1rem;
  display: grid;
  align-content: center;
  gap: 0.55rem;
  border-right: 1px solid var(--skills-line);
  border-bottom: 1px solid var(--skills-line);
  font-family: var(--font-mono, monospace);
}

.case-record__signal span {
  color: var(--skills-muted);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
}

.case-record__signal strong {
  overflow-wrap: anywhere;
  color: var(--skills-paper);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.07em;
}

.case-record__signal.is-captured strong {
  color: var(--skills-gold);
}

.case-record__signal.is-held strong {
  color: var(--skills-violet);
}

.case-record__toggle {
  width: 100%;
  min-height: 3.25rem;
  margin-top: 1.25rem;
  padding: 0.85rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 0;
  border-top: 1px solid var(--skills-line);
  border-bottom: 1px solid var(--skills-line);
  border-radius: 0;
  color: var(--skills-muted);
  background: transparent;
  font: 600 0.62rem/1.3 var(--font-mono, monospace);
  letter-spacing: 0.1em;
  text-align: left;
}

.case-record__toggle:hover,
.case-record__toggle[aria-expanded="true"] {
  color: var(--skills-gold);
}

.case-record__toggle-mark {
  color: var(--skills-gold);
  font-size: 0.9rem;
}

.case-record__panel {
  padding-top: 0.35rem;
}

.artifact-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.artifact-list li {
  display: grid;
  grid-template-columns: minmax(180px, 0.34fr) minmax(0, 1fr);
  gap: 18px;
}

.artifact-list strong,
.artifact-list code,
.case-tests {
  overflow-wrap: anywhere;
  font: 500 0.72rem/1.5 var(--font-mono, monospace);
}

.artifact-list code {
  color: var(--skills-muted);
}

.case-tests {
  color: var(--skills-gold);
}

.skills-status,
.skills-noscript {
  margin: 28px 0 0;
  color: var(--skills-muted);
  font: 500 0.7rem/1.5 var(--font-mono, monospace);
  letter-spacing: 0.08em;
}

:focus-visible {
  outline: 2px solid var(--skills-gold);
  outline-offset: 4px;
}

@media (max-width: 820px) {
  .skills-main {
    width: min(100% - 28px, 680px);
    padding-top: 36px;
  }

  .skills-hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 48px 0 58px;
  }

  .skills-hero h1 {
    overflow-wrap: anywhere;
    font-size: clamp(2.7rem, 11vw, 4.3rem);
    line-height: 0.9;
  }

  .forge-trace {
    padding-left: 0;
    border-left: 0;
  }

  .forge-trace li {
    min-height: 80px;
  }

  .forge-trace li::before {
    bottom: -40px;
    height: 40px;
  }

  .skills-boundary,
  .marketplace-boundary {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 62px 0;
  }

  .skills-heading {
    display: block;
  }

  .registry-counts {
    margin-top: 22px;
  }

  .skill-facts,
  .case-facts {
    grid-template-columns: 1fr;
  }

  .skill-record__identity {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .method-imprint {
    margin-top: 1.4rem;
    padding: 1.2rem 0 0;
    border-top: 1px solid var(--skills-line);
    border-left: 0;
  }

  .method-imprint figcaption {
    display: grid;
  }

  .method-imprint figcaption small {
    text-align: left;
  }

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

  .artifact-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .case-group__heading,
  .evaluation-boundaries {
    grid-template-columns: 1fr;
  }
}

@media print, (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
}