.detail-main {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.detail-hero > *,
.detail-section-heading > *,
.detail-split > *,
.detail-proof > *,
.architecture-flow > * {
  min-width: 0;
}

.detail-header-nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

.detail-header-nav a {
  padding: 8px 10px;
  color: var(--muted);
  font-size: 0.93rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 8px;
  transition:
    color 420ms ease,
    background-color 420ms ease;
}

.detail-header-nav a:hover,
.detail-header-nav a:focus-visible {
  color: var(--ink);
  background: var(--nav-hover);
}

.detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(290px, 0.8fr);
  gap: clamp(28px, 6vw, 84px);
  align-items: end;
  min-height: min(680px, calc(100vh - 72px));
  padding: 64px 0 52px;
}

.detail-breadcrumb {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 42px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.detail-breadcrumb a {
  text-decoration: none;
}

.detail-breadcrumb a:hover,
.detail-breadcrumb a:focus-visible {
  color: var(--blue);
}

.detail-breadcrumb span {
  color: var(--line);
}

.detail-hero h1 {
  max-width: 11ch;
  font-size: clamp(4rem, 9vw, 7.8rem);
}

.detail-hero-copy {
  max-width: 780px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.detail-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.project-signature {
  display: grid;
  gap: 14px;
  padding: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.project-symbol {
  display: grid;
  min-height: 220px;
  place-items: center;
  color: var(--on-strong);
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.2), transparent 34%),
    var(--featured-bg);
  border-radius: 8px;
}

.project-symbol.blue {
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.2), transparent 34%),
    #2457c5;
}

.project-symbol.coral {
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.2), transparent 34%),
    #a43e35;
}

.project-symbol svg {
  width: 110px;
  height: 110px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.project-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.project-fact {
  min-height: 92px;
  padding: 14px;
  background: var(--soft);
  border: 1px solid var(--card-line);
  border-radius: 8px;
}

.project-fact span {
  display: block;
  margin-bottom: 6px;
  color: var(--green);
  font-size: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
}

.project-fact strong {
  display: block;
  font-size: 0.95rem;
  line-height: 1.3;
}

.detail-section {
  padding: 84px 0;
  border-top: 1px solid var(--line);
}

.detail-section-heading {
  display: grid;
  grid-template-columns: minmax(220px, 0.55fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 84px);
  margin-bottom: 32px;
}

.detail-section-heading h2 {
  max-width: 10ch;
}

.detail-section-heading > p {
  max-width: 720px;
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.detail-section-heading .eyebrow {
  margin-bottom: 10px;
}

.detail-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.detail-panel {
  padding: clamp(22px, 4vw, 36px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.detail-panel.accent {
  color: var(--on-strong);
  background: var(--featured-bg);
  border-color: var(--featured-bg);
}

.detail-panel.blue {
  color: var(--on-strong);
  background: #2457c5;
  border-color: #2457c5;
}

.detail-panel.coral {
  color: var(--on-strong);
  background: #a43e35;
  border-color: #a43e35;
}

.detail-panel .panel-number {
  display: block;
  margin-bottom: 42px;
  color: var(--coral);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.detail-panel.accent .panel-number,
.detail-panel.blue .panel-number,
.detail-panel.coral .panel-number {
  color: rgba(255, 255, 255, 0.72);
}

.detail-panel h3 {
  max-width: 19ch;
  font-size: clamp(1.55rem, 3vw, 2.35rem);
}

.detail-panel p {
  margin: 16px 0 0;
  color: var(--muted);
}

.detail-panel.accent p,
.detail-panel.blue p,
.detail-panel.coral p {
  color: rgba(255, 255, 255, 0.82);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.capability-card {
  min-height: 230px;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.capability-icon {
  display: grid;
  width: 44px;
  height: 44px;
  margin-bottom: 40px;
  place-items: center;
  color: var(--blue);
  background: var(--blue-soft);
  border: 1px solid var(--blue-soft-line);
  border-radius: 8px;
}

.capability-card:nth-child(3n + 2) .capability-icon {
  color: var(--green);
  background: var(--green-soft);
  border-color: var(--green-soft-line);
}

.capability-card:nth-child(3n + 3) .capability-icon {
  color: var(--coral);
  background: var(--coral-soft);
  border-color: var(--coral-soft-line);
}

.capability-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.capability-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.architecture-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.flow-step {
  position: relative;
  min-width: 0;
  padding: 18px;
  background: var(--soft);
  border: 1px solid var(--card-line);
  border-radius: 8px;
}

.flow-step:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -21px;
  color: var(--blue);
  font-size: 1.25rem;
  content: "\2192";
  transform: translateY(-50%);
}

.flow-step span {
  display: block;
  margin-bottom: 8px;
  color: var(--coral);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.flow-step strong {
  display: block;
  line-height: 1.25;
}

.flow-step p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.detail-proof {
  display: grid;
  grid-template-columns: minmax(220px, 0.45fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 84px);
}

.detail-proof h2 {
  max-width: 10ch;
}

.detail-proof .proof-points {
  gap: 14px;
  margin-top: 0;
  font-size: 1rem;
}

.detail-proof .proof-points li {
  padding: 0 0 14px 22px;
  border-bottom: 1px solid var(--line);
}

/* ── Info callout ─────────────────────────────────────────────── */
.info-callout {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-top: 28px;
  padding: 18px 22px;
  color: var(--blue);
  background: var(--blue-soft);
  border: 1px solid var(--blue-soft-line);
  border-radius: 8px;
}

.info-callout svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.info-callout p {
  margin: 0;
  color: var(--ink);
  font-size: 0.94rem;
  line-height: 1.65;
}

/* ── Diagram list ─────────────────────────────────────────────── */
.diagram-list {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.diagram-item {
  display: grid;
  grid-template-columns: minmax(220px, 0.45fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
  margin: 0;
}

.diagram-item--flip {
  direction: rtl;
}

.diagram-item--flip > * {
  direction: ltr;
}

.diagram-label .eyebrow {
  margin-bottom: 10px;
}

.diagram-label h3 {
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  line-height: 1.25;
}

.diagram-label p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.diagram-frame {
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.diagram-frame img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform 500ms cubic-bezier(0.22, 1, 0.36, 1);
}

.diagram-frame:hover img {
  transform: scale(1.015);
}

/* ── Screenshot grid ──────────────────────────────────────────── */
.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.screenshot-card {
  margin: 0;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.screenshot-card--wide {
  grid-column: span 3;
}

.screenshot-placeholder {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  padding: 32px;
  color: var(--muted);
  background: var(--soft);
  border-bottom: 1px solid var(--line);
}

.screenshot-card--wide .screenshot-placeholder {
  min-height: 320px;
}

.screenshot-placeholder svg {
  width: 36px;
  height: 36px;
  fill: none;
  stroke: var(--line);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.screenshot-placeholder span {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.screenshot-card figcaption {
  padding: 14px 18px;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.case-nav {

  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 48px 0 70px;
  border-top: 1px solid var(--line);
}

.case-nav a {
  display: block;
  min-height: 140px;
  padding: 22px;
  color: inherit;
  text-decoration: none;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition:
    border-color 240ms ease,
    box-shadow 300ms ease,
    transform 300ms cubic-bezier(0.22, 1, 0.36, 1);
}

.case-nav a:last-child {
  text-align: right;
}

.case-nav a:hover,
.case-nav a:focus-visible {
  border-color: var(--blue);
  box-shadow: var(--project-hover-shadow);
  transform: translateY(-4px);
}

.case-nav span {
  display: block;
  margin-bottom: 28px;
  color: var(--coral);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.case-nav strong {
  font-size: 1.35rem;
}

@media (max-width: 980px) {
  .detail-hero,
  .detail-section-heading,
  .detail-proof {
    grid-template-columns: 1fr;
  }

  .detail-hero {
    min-height: auto;
  }

  .detail-breadcrumb {
    margin-bottom: 32px;
  }

  .project-signature {
    max-width: 620px;
  }

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

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

  .flow-step:nth-child(2)::after {
    display: none;
  }

  .diagram-item,
  .diagram-item--flip {
    grid-template-columns: 1fr;
    direction: ltr;
  }

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

  .screenshot-card--wide {
    grid-column: span 2;
  }
}

@media (max-width: 620px) {
  .detail-main {
    width: calc(100% - 28px);
  }

  .detail-header-nav a:not(.keep-mobile) {
    display: none;
  }

  .detail-hero {
    padding: 44px 0 38px;
  }

  .detail-hero h1 {
    font-size: clamp(2.8rem, 14vw, 3.5rem);
  }

  .project-symbol {
    min-height: 180px;
  }

  .project-symbol svg {
    width: 88px;
    height: 88px;
  }

  .project-facts,
  .detail-split,
  .capability-grid,
  .architecture-flow,
  .screenshot-grid,
  .case-nav {
    grid-template-columns: 1fr;
  }

  .screenshot-card--wide {
    grid-column: span 1;
  }

  .detail-section {
    padding: 52px 0;
  }

  .detail-panel .panel-number {
    margin-bottom: 28px;
  }

  .capability-card {
    min-height: 0;
  }

  .capability-icon {
    margin-bottom: 28px;
  }

  .flow-step:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -26px;
    transform: translateX(50%) rotate(90deg);
  }

  .flow-step:nth-child(2)::after {
    display: block;
  }

  .case-nav a:last-child {
    text-align: left;
  }
}

/* ═══════════════════════════════════════════════════════════════
   Documentation layout — gear.html
   ═══════════════════════════════════════════════════════════════ */

.doc-layout {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 0;
  width: min(1100px, calc(100% - 36px));
  margin: 0 auto;
  padding: 48px 0 80px;
}

/* ── TOC sidebar ─────────────────────────────────────────────── */
.doc-toc {
  position: sticky;
  top: 80px;
  align-self: start;
  padding-right: 32px;
  padding-top: 6px;
}

.doc-toc-label {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.doc-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.doc-toc ol ol {
  margin: 2px 0 6px 12px;
}

.doc-toc li {
  margin: 0;
}

.doc-toc a {
  display: block;
  padding: 4px 8px;
  color: var(--muted);
  font-size: 0.84rem;
  text-decoration: none;
  border-radius: 4px;
  transition: color 200ms ease, background 200ms ease;
}

.doc-toc a:hover,
.doc-toc a:focus-visible {
  color: var(--ink);
  background: var(--nav-hover);
}

/* ── Main doc content ────────────────────────────────────────── */
.doc-main {
  min-width: 0;
  padding-left: 48px;
  border-left: 1px solid var(--line);
}

.doc-page-header {
  padding-bottom: 36px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--line);
}

.doc-page-header h1 {
  margin: 16px 0 8px;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
}

.doc-subtitle {
  max-width: 65ch;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* ── Metadata definition list ────────────────────────────────── */
.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.doc-meta > div {
  padding: 10px 16px;
  border-right: 1px solid var(--line);
}

.doc-meta > div:last-child {
  border-right: none;
}

.doc-meta dt {
  margin-bottom: 2px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.doc-meta dd {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
}

/* ── Sections ────────────────────────────────────────────────── */
.doc-main section {
  padding: 52px 0 0;
}

.doc-main h2 {
  margin: 0 0 20px;
  padding-bottom: 12px;
  font-size: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.doc-main h3 {
  margin: 32px 0 10px;
  font-size: 1.05rem;
}

.doc-main p {
  max-width: 72ch;
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.97rem;
  line-height: 1.75;
}

.doc-main p strong {
  color: var(--ink);
}

.doc-main ul,
.doc-main ol {
  max-width: 68ch;
  margin: 0 0 14px;
  padding-left: 20px;
}

.doc-main li {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.97rem;
  line-height: 1.7;
}

.doc-main li strong {
  color: var(--ink);
}

.doc-main code {
  padding: 1px 5px;
  font-size: 0.88em;
  background: var(--soft);
  border: 1px solid var(--card-line);
  border-radius: 4px;
}

/* ── Figures ─────────────────────────────────────────────────── */
.doc-figure {
  margin: 0;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.doc-figure:last-child {
  border-bottom: none;
}

.doc-figure h3 {
  margin-top: 40px;
}

.doc-figure-img {
  margin: 20px 0 10px;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.doc-figure-img img {
  display: block;
  width: 100%;
  height: auto;
}

.doc-figure figcaption {
  color: var(--muted);
  font-size: 0.82rem;
  font-style: italic;
}

/* ── Stack definition list ───────────────────────────────────── */
.doc-stack {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.doc-stack > div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}

.doc-stack > div:last-child {
  border-bottom: none;
}

.doc-stack dt {
  padding-top: 2px;
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 700;
  flex-shrink: 0;
}

.doc-stack dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ── Screenshot placeholders ─────────────────────────────────── */
.doc-screenshot-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.doc-screenshot {
  margin: 0;
}

.doc-screenshot-placeholder {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  justify-content: center;
  min-height: 130px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.doc-screenshot-placeholder svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--line);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.doc-screenshot-placeholder span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.doc-screenshot figcaption {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
  font-style: italic;
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 860px) {
  .doc-layout {
    grid-template-columns: 1fr;
  }

  .doc-toc {
    position: static;
    padding-right: 0;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--line);
  }

  .doc-main {
    padding-left: 0;
    border-left: none;
  }

  .doc-meta {
    flex-direction: column;
  }

  .doc-meta > div {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .doc-meta > div:last-child {
    border-bottom: none;
  }

  .doc-screenshot-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 540px) {
  .doc-layout {
    width: calc(100% - 28px);
    padding: 32px 0 60px;
  }

  .doc-stack > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .doc-screenshot-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ═══════════════════════════════════════════════════════════════
   Case-study layout (cs-*) — gear.html v4
   ═══════════════════════════════════════════════════════════════ */

.cs-main {
  width: min(900px, calc(100% - 36px));
  margin: 0 auto;
  padding-bottom: 80px;
}

/* ── Notice banner ───────────────────────────────────────────── */
.cs-notice {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 24px 0 0;
  padding: 12px 16px;
  background: hsl(42 100% 94%);
  border: 1px solid hsl(42 80% 78%);
  border-left: 3px solid var(--gold);
  border-radius: 8px;
}

:root[data-theme="dark"] .cs-notice {
  background: hsl(42 30% 14%);
  border-color: hsl(42 40% 28%);
  border-left-color: var(--gold);
}

.cs-notice svg {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  fill: none;
  stroke: var(--gold);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.cs-notice p {
  margin: 0;
  max-width: none;
  color: var(--gold);
  font-size: 0.85rem;
  line-height: 1.55;
}

/* ── Page header ─────────────────────────────────────────────── */
.cs-header {
  padding: 52px 0 40px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 0;
}

.cs-header h1 {
  margin: 16px 0 4px;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.1;
}

.cs-subtitle {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 1rem;
}

.cs-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  max-width: fit-content;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.cs-meta > div {
  padding: 8px 16px;
  border-right: 1px solid var(--line);
}

.cs-meta > div:last-child {
  border-right: none;
}

.cs-meta dt {
  margin-bottom: 2px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.cs-meta dd {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 600;
}

/* ── Sections ────────────────────────────────────────────────── */
.cs-section {
  padding: 52px 0 0;
}

.cs-section h2 {
  margin: 0 0 18px;
  padding-bottom: 12px;
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.cs-lead {
  max-width: 72ch;
  margin: 0 0 16px;
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--ink);
}

.cs-body {
  max-width: 72ch;
  margin: 0 0 14px;
  font-size: 0.97rem;
  line-height: 1.75;
  color: var(--muted);
}

.cs-body strong {
  color: var(--ink);
}

.cs-body code,
.cs-module-card code {
  padding: 1px 5px;
  font-size: 0.87em;
  background: var(--soft);
  border: 1px solid var(--card-line);
  border-radius: 4px;
}

/* ── Figures ─────────────────────────────────────────────────── */
.cs-figure {
  margin: 20px 0 28px;
}

.cs-figure--compact {
  max-width: 520px;
  margin-right: auto;
  margin-left: auto;
}

.cs-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.cs-figure figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-style: italic;
}

/* ── Module grid ─────────────────────────────────────────────── */
.cs-module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 20px;
}

.cs-module-card {
  padding: 22px 24px 26px;
  background: var(--panel);
}

.cs-module-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}

.cs-module-tag {
  flex-shrink: 0;
  padding: 2px 7px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  background: var(--soft);
  border: 1px solid var(--card-line);
  border-radius: 4px;
}

.cs-module-card h3 {
  margin: 0;
  font-size: 0.97rem;
  font-weight: 700;
  line-height: 1.3;
}

.cs-module-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 680px) {
  .cs-main {
    width: calc(100% - 28px);
    padding-bottom: 60px;
  }

  .cs-header {
    padding: 36px 0 28px;
  }

  .cs-meta {
    flex-direction: column;
  }

  .cs-meta > div {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .cs-meta > div:last-child {
    border-bottom: none;
  }

  .cs-module-grid {
    grid-template-columns: 1fr;
  }

  .cs-section {
    padding-top: 40px;
  }
}

/* ═══════════════════════════════════════════════════════════════
   Interface Showcase — gear.html
   ═══════════════════════════════════════════════════════════════ */

.showcase-container {
  margin-top: 32px;
}

.showcase-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
}

.showcase-tab-btn {
  font-family: inherit;
  padding: 8px 18px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: var(--soft);
  border: 1px solid var(--card-line);
  border-radius: 20px;
  cursor: pointer;
  transition: all 250ms ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tab-icon {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
  flex-shrink: 0;
}

.showcase-tab-btn:hover {
  color: var(--ink);
  background: var(--nav-hover);
  border-color: var(--line);
}

.showcase-tab-btn.active {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

:root[data-theme="dark"] .showcase-tab-btn.active {
  color: #000;
  background: var(--ink);
  border-color: var(--ink);
}

.showcase-panel {
  display: none;
}

.showcase-panel.active {
  display: block;
  animation: showcaseFadeIn 450ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes showcaseFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.screenshot-card img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 1px solid var(--line);
  transition: transform 500ms cubic-bezier(0.22, 1, 0.36, 1);
  cursor: pointer;
}

.screenshot-card:hover img {
  transform: scale(1.02);
}

/* ── Screenshot Modal/Popup ─────────────────────────────────── */
body.modal-open {
  overflow: hidden;
}

.screenshot-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background: rgba(10, 15, 30, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease;
}

.screenshot-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 85vw;
  max-height: 85vh;
  margin: 0 auto;
  transform: scale(0.95);
  opacity: 0;
  transition: transform 350ms cubic-bezier(0.34, 1.56, 0.64, 1), opacity 300ms ease;
}

.screenshot-modal.active .modal-content {
  transform: scale(1);
  opacity: 1;
}

.modal-content img {
  max-width: 100%;
  max-height: 75vh;
  border-radius: 12px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  object-fit: contain;
  background: #111;
}

.modal-caption {
  margin-top: 18px;
  color: #f3f6fb;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: center;
  max-width: 600px;
  line-height: 1.6;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  padding: 0 10px;
}

/* Navigation & Close Buttons */
.modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  color: #fff;
  font-size: 24px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1010;
  transition: background 250ms ease, transform 250ms ease, border-color 250ms ease;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.08) rotate(90deg);
}

.modal-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 54px;
  height: 54px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1005;
  transition: background 250ms ease, transform 250ms ease, border-color 250ms ease;
}

.modal-nav svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.modal-nav:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.35);
}

.modal-nav-prev {
  left: 32px;
}

.modal-nav-prev:hover {
  transform: translateY(-50%) scale(1.08) translateX(-2px);
}

.modal-nav-next {
  right: 32px;
}

.modal-nav-next:hover {
  transform: translateY(-50%) scale(1.08) translateX(2px);
}

/* Hide navigation on touch screens / small viewports or position differently */
@media (max-width: 768px) {
  .modal-nav {
    width: 44px;
    height: 44px;
  }
  .modal-nav-prev {
    left: 12px;
  }
  .modal-nav-next {
    right: 12px;
  }
  .modal-close {
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
}