.elysia-module-page {
  scroll-behavior: smooth;
}

.elysia-module-page .elysia-shell {
  width: min(1180px, calc(100% - 2rem));
  padding-top: 7.25rem;
}

.elysia-module-page .nav__left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.elysia-module-page .nav__left > a:not(.brand) {
  color: var(--elysia-text-muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.elysia-module-page .nav__left > a:not(.brand):hover,
.elysia-module-page .nav__left > a:not(.brand):focus-visible {
  color: var(--elysia-text);
}

.module-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  padding: clamp(1.6rem, 4vw, 3.4rem);
  border: 1px solid var(--elysia-border);
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent 52%),
    var(--elysia-panel);
  box-shadow: var(--elysia-shadow);
}

.module-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -8rem;
  top: -9rem;
  width: 25rem;
  height: 25rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 130, 210, 0.25), transparent 68%);
  pointer-events: none;
}

.module-hero__eyebrow,
.module-section__eyebrow,
.module-card__label,
.module-code-card__path {
  margin: 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--elysia-gold);
}

.module-hero__title {
  margin: 0.55rem 0 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: clamp(3.2rem, 8vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
}

.module-hero__summary {
  max-width: 70ch;
  margin: 1.2rem 0 0;
  font-size: clamp(1rem, 1.8vw, 1.16rem);
  line-height: 1.8;
  color: var(--elysia-text-muted);
}

.module-hero__meta,
.module-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.module-hero__meta {
  margin-top: 1.4rem;
}

.module-chip {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.72rem;
  border: 1px solid var(--elysia-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--elysia-text);
}

.module-hero__number {
  align-self: start;
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 800;
  line-height: 0.85;
  color: rgba(255, 196, 231, 0.34);
}

.module-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
  margin-top: 2rem;
}

.module-toc {
  position: sticky;
  top: 6.6rem;
  padding: 1rem;
  border: 1px solid var(--elysia-border);
  border-radius: 18px;
  background: var(--elysia-panel);
  backdrop-filter: blur(18px);
}

.module-toc__label {
  margin: 0 0 0.65rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--elysia-gold);
}

.module-toc__list {
  display: grid;
  gap: 0.18rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.module-toc a {
  display: block;
  padding: 0.48rem 0.58rem;
  border-left: 2px solid transparent;
  border-radius: 0 9px 9px 0;
  color: var(--elysia-text-muted);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.module-toc a:hover,
.module-toc a:focus-visible,
.module-toc a.is-active {
  color: var(--elysia-text);
  border-left-color: var(--elysia-accent);
  background: rgba(255, 255, 255, 0.07);
}

.module-content {
  min-width: 0;
}

.module-section {
  scroll-margin-top: 7rem;
  padding: clamp(1.2rem, 3vw, 2rem) 0;
}

.module-section:first-child {
  padding-top: 0;
}

.module-section__head {
  margin-bottom: 1rem;
}

.module-section__title {
  margin: 0.35rem 0 0;
  font-size: clamp(1.65rem, 4vw, 2.5rem);
  line-height: 1.15;
}

.module-section__intro {
  max-width: 76ch;
  margin: 0.7rem 0 0;
  line-height: 1.75;
  color: var(--elysia-text-muted);
}

.module-grid {
  display: grid;
  gap: 1rem;
}

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

.module-card,
.module-diagram,
.module-code-card {
  min-width: 0;
  padding: clamp(1rem, 2.4vw, 1.5rem);
  border: 1px solid var(--elysia-border);
  border-radius: 20px;
  background: var(--elysia-panel);
  box-shadow: 0 16px 44px rgba(19, 5, 21, 0.16);
}

.module-card h3,
.module-diagram h3,
.module-code-card h3 {
  margin: 0.35rem 0 0;
  font-size: 1.15rem;
}

.module-card p,
.module-diagram p,
.module-code-card p {
  margin: 0.65rem 0 0;
  line-height: 1.7;
  color: var(--elysia-text-muted);
}

.module-list {
  display: grid;
  gap: 0.7rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.module-list li {
  position: relative;
  padding-left: 1.15rem;
  line-height: 1.65;
  color: var(--elysia-text-muted);
}

.module-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--elysia-accent);
  box-shadow: 0 0 12px rgba(255, 111, 188, 0.55);
}

.module-evolution {
  display: grid;
  gap: 1rem;
}

.module-evolution-story {
  min-width: 0;
  padding: clamp(1.1rem, 2.6vw, 1.75rem);
  border: 1px solid var(--elysia-border);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.055), transparent 48%),
    var(--elysia-panel);
  box-shadow: 0 16px 44px rgba(19, 5, 21, 0.16);
}

.module-prose__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--elysia-border);
}

.module-prose__index {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid var(--elysia-border-strong);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  color: var(--elysia-gold);
  font: 700 0.72rem/1 "JetBrains Mono", monospace;
}

.module-prose__head h3 {
  margin: 0;
  font-size: clamp(1.18rem, 2vw, 1.42rem);
  line-height: 1.3;
}

.module-prose__lead {
  max-width: 70ch;
  margin: 0.45rem 0 0;
  color: var(--elysia-text-muted);
  line-height: 1.7;
}

.module-prose__body {
  max-width: 78ch;
  margin: 1.15rem auto 0;
}

.module-prose__body > :first-child {
  margin-top: 0;
}

.module-prose__body h4 {
  margin: 1.5rem 0 0;
  color: var(--elysia-gold);
  font: 700 0.72rem/1.45 "JetBrains Mono", monospace;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.module-prose__body p {
  margin: 0.65rem 0 0;
  color: var(--elysia-text-muted);
  line-height: 1.82;
}

.module-prose__body ul {
  display: grid;
  gap: 0.55rem;
  margin: 0.85rem 0 0;
  padding-left: 1.25rem;
  color: var(--elysia-text-muted);
}

.module-prose__body li {
  padding-left: 0.2rem;
  line-height: 1.7;
}

.module-prose__body code {
  padding: 0.12em 0.35em;
  border: 1px solid var(--elysia-border);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.065);
  color: var(--elysia-text);
  font: 0.84em/1.5 "JetBrains Mono", monospace;
  overflow-wrap: anywhere;
}

.module-prose__split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.module-prose__split > section {
  min-width: 0;
  padding: 0 1rem 0.2rem;
  border-left: 2px solid var(--elysia-border-strong);
}

.module-prose__callout {
  display: grid;
  gap: 0.4rem;
  margin: 1.35rem 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--elysia-border);
  border-left: 3px solid var(--elysia-accent);
  border-radius: 0 14px 14px 0;
  background: rgba(255, 111, 188, 0.07);
}

.module-prose__callout strong,
.module-prose__aside > strong {
  color: var(--elysia-text);
  font: 700 0.72rem/1.4 "JetBrains Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.module-prose__callout span {
  color: var(--elysia-text-muted);
  line-height: 1.75;
}

.module-prose__terms {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 0.85rem 0 0;
}

.module-prose__terms > div {
  min-width: 0;
  padding: 0.85rem;
  border: 1px solid var(--elysia-border);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.035);
}

.module-prose__terms dt,
.module-prose__terms dd {
  margin: 0;
}

.module-prose__terms dd {
  margin-top: 0.5rem;
  color: var(--elysia-text-muted);
  line-height: 1.65;
}

.module-prose__sequence {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: prose-step;
}

.module-prose__sequence li {
  display: grid;
  gap: 0.4rem;
  padding: 0.9rem;
  border-top: 2px solid var(--elysia-accent-soft);
  background: rgba(255, 255, 255, 0.025);
  counter-increment: prose-step;
}

.module-prose__sequence li::before {
  content: "0" counter(prose-step);
  color: var(--elysia-gold);
  font: 700 0.68rem/1 "JetBrains Mono", monospace;
}

.module-prose__sequence span {
  color: var(--elysia-text-muted);
  line-height: 1.65;
}

.module-prose__aside {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  align-items: baseline;
  margin-top: 1.35rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--elysia-border-strong);
}

.module-prose__aside p {
  margin: 0;
}

.module-source-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.8rem;
  margin: 1rem 0 0;
  color: var(--elysia-text-muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.module-source-note a {
  color: var(--elysia-accent-soft);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  font-weight: 700;
  text-decoration: none;
}

.module-source-note a:hover,
.module-source-note a:focus-visible {
  color: var(--elysia-text);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.module-diagram + .module-diagram,
.module-code-card + .module-code-card {
  margin-top: 1rem;
}

.module-diagram__canvas {
  margin-top: 1rem;
}

.module-diagram__fallback {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px dashed var(--elysia-border);
  border-radius: 14px;
  line-height: 1.65;
  color: var(--elysia-text-muted);
}

.module-diagram.is-enhanced .module-diagram__fallback {
  display: none;
}

.module-code-card__head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.module-code-card__path {
  max-width: 42ch;
  overflow-wrap: anywhere;
}

.module-code-slot,
.module-code-fallback {
  margin-top: 1rem;
}

.module-code-card.is-enhanced .module-code-fallback {
  display: none;
}

.module-code-fallback {
  max-height: 24rem;
  overflow: auto;
  padding: 1rem;
  border: 1px solid var(--elysia-border);
  border-radius: 14px;
  background: #111827;
  color: #e2e8f0;
  font: 0.76rem/1.6 "JetBrains Mono", monospace;
  white-space: pre;
}

.module-code-card .cpp-block {
  --line-number-width: 3.2rem;
}

.module-code-card .cpp-block__codewrap {
  scrollbar-color: rgba(255, 150, 207, 0.5) transparent;
}

.module-code-card .cpp-block__source:focus-visible,
.module-code-card .cpp-block__copy:focus-visible {
  outline: 2px solid #ff96cf;
  outline-offset: 2px;
}

.module-bottom-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 2rem 0 1rem;
}

.module-bottom-nav a,
.module-bottom-nav span {
  display: flex;
  flex-direction: column;
  gap: 0.32rem;
  min-height: 6.25rem;
  padding: 1rem 1.2rem;
  border: 1px solid var(--elysia-border);
  border-radius: 18px;
  background: var(--elysia-panel);
  color: var(--elysia-text);
  text-decoration: none;
}

.module-bottom-nav a:hover,
.module-bottom-nav a:focus-visible {
  border-color: var(--elysia-border-strong);
  transform: translateY(-2px);
}

.module-bottom-nav span[aria-disabled="true"] {
  opacity: 0.58;
}

.module-bottom-nav__label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--elysia-gold);
}

.module-bottom-nav__title {
  margin-top: auto;
  font-weight: 700;
}

.project-mermaid-card {
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.project-mermaid__toggle {
  margin: 0 0 0.75rem;
  border: 1px solid var(--elysia-border);
  border-radius: 999px;
  background: transparent;
  color: var(--elysia-text);
  padding: 0.42rem 0.8rem;
  cursor: pointer;
}

.project-mermaid-card.is-collapsed .project-mermaid__canvas {
  display: none;
}

.project-mermaid__canvas {
  overflow: auto;
  padding: 1rem;
  border: 1px solid var(--elysia-border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.project-mermaid__canvas svg {
  display: block;
  width: 100%;
  height: auto;
  min-width: 560px;
}

.project-mermaid__empty,
.project-mermaid__error {
  padding: 1rem;
  border: 1px dashed var(--elysia-border);
  border-radius: 14px;
  color: var(--elysia-text-muted);
}

html[data-theme="light"] .module-code-fallback {
  background: #f8fafc;
  color: #172033;
}

@media (min-width: 1320px) {
  .module-layout {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 1.5rem;
    width: calc(100% + 56px);
    margin-left: -56px;
  }

  .module-toc {
    padding: 0.75rem;
  }

  .module-toc a {
    padding: 0.42rem 0.45rem;
    font-size: 0.76rem;
  }
}

@media (max-width: 900px) {
  .module-layout {
    grid-template-columns: 1fr;
  }

  .module-toc {
    z-index: 5;
    top: 5rem;
    overflow-x: auto;
    padding: 0.65rem;
  }

  .module-toc__label {
    display: none;
  }

  .module-toc__list {
    display: flex;
    width: max-content;
  }

  .module-toc a {
    border-left: 0;
    border-bottom: 2px solid transparent;
    border-radius: 9px;
    white-space: nowrap;
  }

  .module-toc a:hover,
  .module-toc a:focus-visible,
  .module-toc a.is-active {
    border-left-color: transparent;
    border-bottom-color: var(--elysia-accent);
  }
}

@media (max-width: 700px) {
  .elysia-module-page .elysia-shell {
    width: min(100% - 1rem, 1180px);
    padding-top: 6rem;
  }

  .module-hero {
    grid-template-columns: 1fr;
    border-radius: 22px;
  }

  .elysia-module-page .nav__left > a:not(.brand) {
    display: none;
  }

  .module-hero__number {
    position: absolute;
    right: 1.1rem;
    top: 1.1rem;
    font-size: 3rem;
  }

  .module-grid--two,
  .module-bottom-nav {
    grid-template-columns: 1fr;
  }

  .module-prose__split,
  .module-prose__terms,
  .module-prose__sequence {
    grid-template-columns: 1fr;
  }

  .module-code-card__head {
    display: block;
  }

  .module-code-card__path {
    margin-top: 0.6rem;
  }
}

@media (max-width: 480px) {
  .module-prose__head,
  .module-prose__aside {
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .elysia-module-page {
    scroll-behavior: auto;
  }

  .module-bottom-nav a,
  .module-toc a {
    transition: none;
  }
}