/* ==========================================================================
   Leo Sun (孙启明) — Editorial Portfolio Stylesheet (Anti-AI Pass 2026-11-01)
   Warm Paper + Carbon Ink + Restrained Steel Accent · Two-Font Grotesque System
   ========================================================================== */

:root {
  color-scheme: light;
  --surface-page: #f6f4ef;
  --canvas: #efece6;
  --surface-elevated: #ffffff;
  --signal: #2b4450;
  --ink: #161615;
  --muted: #5c5a55;
  --subtle: #8a867e;
  --rule: #dcd8d0;
  --rule-strong: #161615;
  --card-charcoal: #1c1c1a;
  --badge-bg: #ffffff;
  --control-bg: #e8e4dc;
  --control-knob: #161615;
  --font-display: "DM Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  --font-sans: "DM Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-max: 1040px;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --surface-page: #141413;
  --canvas: #1c1c1a;
  --surface-elevated: #222220;
  --signal: #7da3b0;
  --ink: #ece9e2;
  --muted: #9e9a91;
  --subtle: #6e6b64;
  --rule: #2e2d2a;
  --rule-strong: #ece9e2;
  --card-charcoal: #1c1c1a;
  --badge-bg: #222220;
  --control-bg: #242422;
  --control-knob: #ece9e2;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
  scroll-padding-top: 7.25rem;
  background-color: var(--surface-page);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

[id],
section[id],
details[id],
figure[id],
div[id],
article[id],
.portfolio-section,
.case-section,
.work-index-group,
.section-header,
.section-title,
.case-section-title,
.work-index-group-title,
.case-decision-block,
.case-decision-card,
h1[id],
h2[id],
h3[id] {
  scroll-margin-top: 7.25rem;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--surface-page);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
}

body.nav-drawer-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

img {
  max-width: 100%;
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 100;
  background: var(--ink);
  color: var(--surface-page);
  padding: 8px 14px;
  border-radius: 2px;
  font-size: 13px;
  font-weight: 500;
}

.skip-link:focus {
  top: 14px;
}

/* ==========================================================================
   Top Navigation Bar
   ========================================================================== */

.site-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  width: 100%;
  background-color: var(--surface-page);
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.topbar-inner {
  width: min(var(--container-max), calc(100vw - 48px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: relative;
}

.menu-group {
  display: flex;
  align-items: center;
  gap: 18px;
}

.burger-btn {
  appearance: none;
  border: none;
  background: transparent;
  padding: 6px 0;
  width: 28px;
  height: 28px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 5px;
  cursor: pointer;
  color: var(--ink);
  flex-shrink: 0;
}

.burger-line {
  display: block;
  height: 1.5px;
  background-color: var(--ink);
}

.burger-line--top {
  width: 22px;
}

.burger-line--mid {
  width: 14px;
}

.burger-line--bot {
  width: 18px;
}

.burger-btn:hover .burger-line {
  background-color: var(--signal);
}

.burger-btn[aria-expanded="true"] .burger-line--top {
  width: 20px;
  transform: translateY(6.5px) rotate(45deg);
}

.burger-btn[aria-expanded="true"] .burger-line--mid {
  opacity: 0;
}

.burger-btn[aria-expanded="true"] .burger-line--bot {
  width: 20px;
  transform: translateY(-6.5px) rotate(-45deg);
}

.topbar-identity {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--ink);
}

.topbar-identity-zh {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.topbar-identity-en {
  font-size: 12px;
  font-weight: 400;
  color: var(--subtle);
}

.nav-backdrop {
  display: none;
}

.nav-drawer-head {
  display: none;
}

.topbar-nav {
  display: none;
  align-items: center;
}

.topbar-nav.is-open {
  display: flex;
}

.nav-links-list {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: nowrap;
}

.topbar-nav a {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.15s ease;
}

.topbar-nav a:hover,
.topbar-nav a[aria-current="true"] {
  color: var(--ink);
}

.topbar-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.lang-btn {
  appearance: none;
  border: 1px solid var(--rule);
  background-color: transparent;
  color: var(--ink);
  height: 32px;
  padding: 0 10px;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.lang-btn:hover {
  border-color: var(--ink);
}

.lang-btn-text {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.lang-token {
  color: var(--subtle);
  font-weight: 400;
}

.lang-token.is-active {
  color: var(--ink);
  font-weight: 600;
}

.lang-sep {
  color: var(--subtle);
  font-size: 11px;
}

.theme-switch {
  appearance: none;
  border: 1px solid var(--rule);
  background-color: transparent;
  width: 48px;
  height: 32px;
  border-radius: 2px;
  padding: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.theme-switch:hover {
  border-color: var(--ink);
}

html[data-theme="dark"] .theme-switch {
  justify-content: flex-end;
}

.theme-switch-knob {
  width: 18px;
  height: 20px;
  border-radius: 1px;
  background-color: var(--control-knob);
}

/* ==========================================================================
   Main Container & Section Chrome
   ========================================================================== */

.page-main {
  width: min(var(--container-max), calc(100vw - 48px));
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 88px;
  padding-bottom: 32px;
}

.portfolio-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}

.portfolio-section--nested {
  padding-top: 24px;
}

.section-header {
  width: 100%;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.section-title-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.section-title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.section-title-en {
  display: block;
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--subtle);
  opacity: 0.52;
  transition: opacity 0.18s ease;
}

.section-header:hover .section-title-en {
  opacity: 0.85;
}

html[lang="en"] .section-title-en {
  display: none;
}

.section-header-link {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--signal);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.15s ease;
}

.section-header-link:hover,
.section-header-link:focus-visible {
  color: var(--ink);
}

/* ==========================================================================
   1. HERO Section (Portfolio Stage: Dominant Shipped UI + Short Placard)
   ========================================================================== */

.hero-section {
  padding: 28px 0 12px;
}

.hero-editorial-grid {
  display: grid;
  grid-template-columns: minmax(372px, 0.74fr) minmax(0, 1.26fr);
  gap: 36px;
  align-items: center;
}

.hero-copy-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 16px;
}

.hero-meta-line {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
  width: 100%;
}

.hero-meta-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.01em;
}

.hero-meta-en {
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--subtle);
  opacity: 0.52;
}

.hero-positioning {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(20px, 2vw, 21.5px);
  font-weight: 700;
  line-height: 1.38;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 17.2em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.hero-cta-row {
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.hero-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--surface-page);
  background-color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 0;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.hero-cta-btn:hover,
.hero-cta-btn:focus-visible {
  background-color: var(--signal);
  border-color: var(--signal);
  color: #ffffff;
}

html[data-theme="dark"] .hero-cta-btn:hover,
html[data-theme="dark"] .hero-cta-btn:focus-visible {
  color: #141413;
}

.hero-secondary-link {
  font-size: 11.5px;
  font-weight: 400;
  line-height: 1.35;
  color: var(--subtle);
  opacity: 0.72;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, opacity 0.15s ease, border-color 0.15s ease;
}

.hero-secondary-link:hover,
.hero-secondary-link:focus-visible {
  color: var(--muted);
  opacity: 1;
  border-bottom-color: var(--rule);
}

.hero-artifact {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 6px;
  box-shadow: 0 10px 28px -8px rgba(22, 22, 21, 0.08), 0 2px 6px rgba(22, 22, 21, 0.04);
  transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.22s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.18s ease;
}

.hero-artifact:hover,
.hero-artifact:focus-within {
  transform: translateY(-3px);
  border-color: var(--ink);
  box-shadow: 0 16px 36px -8px rgba(22, 22, 21, 0.13), 0 4px 10px rgba(22, 22, 21, 0.06);
}

.hero-artifact-frame {
  display: block;
  width: 100%;
  background-color: var(--surface-elevated);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(22, 22, 21, 0.06);
}

.hero-artifact-frame img {
  width: 100%;
  height: auto;
  max-height: 460px;
  object-fit: cover;
  object-position: top center;
}

.hero-artifact-caption {
  padding: 2px 4px 0;
  background-color: transparent;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.artifact-caption-code {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--subtle);
  opacity: 0.6;
  flex-shrink: 0;
}

.artifact-caption-text {
  font-size: 12px;
  line-height: 1.45;
  color: var(--muted);
}

/* ==========================================================================
   2. SELECTED WORK (1 Full-Width Lead Stage + 2 Quieter Secondary Cards)
   ========================================================================== */

.projects-editorial {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.project-feature-lead {
  width: 100%;
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
}

.project-card--lead {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--rule);
}

.project-card-frame {
  width: 100%;
  padding: 14px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 6px;
  box-shadow: 0 6px 20px -6px rgba(22, 22, 21, 0.06), 0 1px 3px rgba(22, 22, 21, 0.03);
  overflow: hidden;
  transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.22s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.18s ease;
}

.project-card--lead .project-card-frame {
  padding: 18px;
  box-shadow: 0 10px 28px -8px rgba(22, 22, 21, 0.08), 0 2px 6px rgba(22, 22, 21, 0.04);
}

.project-card-frame--dark-ui {
  background-color: #20201e;
}

.project-card:hover .project-card-frame,
.project-card:focus-visible .project-card-frame {
  transform: translateY(-3px);
  border-color: var(--ink);
  box-shadow: 0 14px 32px -6px rgba(22, 22, 21, 0.12), 0 4px 10px rgba(22, 22, 21, 0.05);
}

.project-card-media {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  box-shadow: 0 3px 10px rgba(22, 22, 21, 0.07);
}

.project-card--lead .project-card-media {
  max-height: 480px;
  object-fit: cover;
  object-position: top center;
}

.projects-asymmetric-row {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 28px;
  align-items: start;
}

.projects-asymmetric-row .project-card {
  gap: 12px;
}

.projects-asymmetric-row .project-card-frame {
  height: 216px;
  padding: 12px;
}

.projects-asymmetric-row .project-card-media {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  object-fit: cover;
  object-position: top left;
  border-radius: 3px;
}

.project-card-caption {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.project-card-meta {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  min-height: 20px;
  line-height: 1.4;
}

.project-index-num {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  color: var(--signal);
  font-variant-numeric: tabular-nums;
}

.project-meta-domain {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}

.project-meta-year {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--subtle);
  margin-left: auto;
  font-variant-numeric: tabular-nums;
}

.project-card-title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 18.5px;
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink);
  transition: color 0.15s ease;
}

.project-card--lead .project-card-title {
  font-size: 24px;
}

.project-card:hover .project-card-title,
.project-card:focus-visible .project-card-title {
  color: var(--signal);
}

.project-card-outcome {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
}

.project-card--lead .project-card-outcome {
  font-size: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.projects-asymmetric-row .project-card-outcome {
  font-size: 14px;
  line-height: 1.52;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-card-role {
  margin: 0;
  padding-top: 0;
  border-top: none;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.45;
  color: var(--subtle);
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity 0.2s ease, max-height 0.2s ease, margin-top 0.2s ease;
}

.project-card:hover .project-card-role,
.project-card:focus-visible .project-card-role {
  opacity: 0.85;
  max-height: 44px;
  margin-top: 2px;
}

/* ==========================================================================
   3. ABOUT Section (First-Person Prose + Clean Domain Meta)
   ========================================================================== */

.about-editorial-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: 48px;
  align-items: start;
}

.about-meta-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.about-identity-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule);
}

.about-avatar {
  width: 36px;
  height: 36px;
  border-radius: 2px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  overflow: hidden;
  flex-shrink: 0;
  filter: grayscale(35%);
}

.about-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-name {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}

.about-subrole {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--subtle);
}

.about-domain-list {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-domain-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.about-domain-item dt {
  font-size: 12px;
  font-weight: 600;
  color: var(--subtle);
}

.about-domain-item dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

.about-prose-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-prose {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.about-prose p {
  margin: 0;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink);
  max-width: 52ch;
}

.about-focus-intro {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  color: var(--ink);
}

.about-focus-line {
  display: block;
  padding-left: 12px;
  border-left: 2px solid var(--rule);
  margin-top: 6px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--ink);
}

.about-quick-links {
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.about-text-link {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--signal);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.about-text-link:hover,
.about-text-link:focus-visible {
  color: var(--ink);
}

/* ==========================================================================
   4. CONTACT Section
   ========================================================================== */

#contact.portfolio-section {
  margin-top: 8px;
  padding-top: 40px;
  border-top: 2px solid var(--ink);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 48px;
  align-items: start;
}

.contact-cta-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
}

.contact-lead {
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink);
  max-width: 54ch;
}

.contact-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.contact-mailto-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--surface-page);
  background-color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 0;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.contact-mailto-btn:hover,
.contact-mailto-btn:focus-visible {
  background-color: var(--signal);
  border-color: var(--signal);
  color: #ffffff;
}

html[data-theme="dark"] .contact-mailto-btn:hover,
html[data-theme="dark"] .contact-mailto-btn:focus-visible {
  color: #141413;
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--ink);
}

.contact-item svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  color: var(--muted);
}

.contact-item a {
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

.contact-item a:hover {
  color: var(--signal);
}

/* ==========================================================================
   5. BOTTOM ARCHIVE DRAWER (Experience, Education & Writing)
   ========================================================================== */

.archive-drawer-section {
  width: 100%;
  border-top: 1px solid var(--rule);
  padding-top: 20px;
}

.homepage-archive-drawer {
  width: 100%;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
}

.archive-drawer-summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.archive-drawer-summary::-webkit-details-marker {
  display: none;
}

.archive-drawer-summary:hover {
  background-color: var(--control-bg);
}

.archive-summary-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
}

.archive-summary-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}

.archive-summary-en {
  display: block;
  font-size: 11px;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: var(--subtle);
  opacity: 0.72;
}

html[lang="en"] .archive-summary-en {
  display: none;
}

.archive-summary-indicator {
  font-size: 18px;
  font-weight: 500;
  color: var(--muted);
  line-height: 1;
}

.homepage-archive-drawer[open] .archive-summary-indicator {
  transform: rotate(45deg);
}

.archive-drawer-body {
  padding: 8px 20px 28px;
  border-top: 1px solid var(--rule);
  background-color: var(--surface-page);
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.two-col-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  align-items: start;
}

#experience .two-col-grid {
  grid-template-columns: 1fr;
  gap: 32px;
}

.record-block {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

#experience .record-block {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

#experience .record-block + .record-block {
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}

.record-head {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

#experience .record-head {
  gap: 5px;
}

.record-role {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

#experience .record-role {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.record-org,
.record-period {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--muted);
}

#experience .record-org {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.48;
  color: var(--ink);
}

#experience .record-period {
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--subtle);
  font-variant-numeric: tabular-nums;
}

.record-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#experience .record-body {
  gap: 10px;
}

.record-body p {
  margin: 0;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink);
  max-width: 65ch;
}

.record-outcome {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--signal);
  font-size: 14px !important;
  font-weight: 500 !important;
  line-height: 1.55 !important;
  color: var(--ink);
  max-width: none !important;
}

.record-evidence {
  margin: 0;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.record-evidence li {
  font-size: 13px;
  font-weight: 400;
  line-height: 1.55;
  color: var(--muted);
  max-width: none;
}

.record-bullet-lead {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 1px;
}

.record-bullet-desc {
  display: block;
  font-size: 12.5px;
  font-weight: 400;
  line-height: 1.55;
  color: var(--muted);
}

.record-footnote {
  margin: 2px 0 0;
  padding: 8px 12px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  font-size: 12.5px !important;
  font-weight: 400 !important;
  line-height: 1.55 !important;
  color: var(--muted) !important;
  max-width: none !important;
}

#education.portfolio-section--nested {
  margin-top: 8px;
  padding-top: 36px;
  border-top: 2px solid var(--rule-strong);
  gap: 24px;
}

#education .section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--muted);
}

#education .two-col-grid {
  gap: 40px;
}

#education .record-role {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
}

#education .record-org,
#education .record-period {
  font-size: 13px;
  color: var(--subtle);
}

#education .record-body p {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
}

.writing-list {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.writing-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 120px auto;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  transition: color 0.15s ease;
}

.writing-item:first-child {
  padding-top: 4px;
}

.writing-item-title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
  transition: color 0.15s ease;
}

.writing-item:hover .writing-item-title,
.writing-item:focus-visible .writing-item-title {
  color: var(--signal);
}

.writing-item-date {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.writing-item-category {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--subtle);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-footer {
  width: min(var(--container-max), calc(100vw - 48px));
  margin: 16px auto 0;
  padding: 20px 0 28px;
  border-top: 1px solid var(--rule);
  text-align: left;
}

.footer-credit {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}

/* ==========================================================================
   Case Study & Writing Detail Pages
   ========================================================================== */

.detail-main {
  width: min(var(--container-max), calc(100vw - 48px));
  margin: 0 auto;
  padding: 36px 0 96px;
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--signal);
}

.detail-back:hover {
  text-decoration: underline;
}

.detail-hero {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.detail-kicker {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--signal);
  text-transform: uppercase;
}

.detail-title {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
}

.detail-summary {
  margin: 0;
  font-size: 18px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--ink);
  max-width: 68ch;
}

.detail-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  padding: 20px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.detail-meta-item dt {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 4px;
}

.detail-meta-item dd {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}

.detail-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.detail-section h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
}

.detail-section p,
.detail-section li {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--ink);
  max-width: 70ch;
}

.detail-section ul {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.detail-figure {
  margin: 8px 0 0;
  background-color: var(--card-charcoal);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--rule);
}

.detail-figure img {
  width: 100%;
  height: auto;
}

.detail-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: #b8b8b8;
  background-color: #161616;
}

/* ==========================================================================
   Deep Case Study Layout (/work/pdp/ & unified case skeleton)
   ========================================================================== */

.case-shell {
  width: min(1040px, calc(100vw - 48px));
  margin: 0 auto;
  padding: 28px 0 96px;
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.case-topbar-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.case-topbar-link {
  display: inline-flex;
  align-items: center;
  padding: 2px 0;
  border-bottom: 2px solid transparent;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--muted);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.case-topbar-link:hover,
.case-topbar-link:focus-visible {
  color: var(--ink);
}

.case-topbar-link.is-current,
.case-topbar-link.is-active,
.case-topbar-link[aria-current="true"],
.case-topbar-link[aria-current="location"] {
  font-weight: 700;
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.case-hero {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-top: 8px;
}

.case-hero-header {
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-top: 3px solid var(--signal);
  padding-top: 20px;
}

.case-hero-title {
  margin: 0;
  font-size: clamp(30px, 4.2vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.case-hero-lead {
  margin: 0;
  font-size: clamp(16.5px, 1.75vw, 18px);
  font-weight: 400;
  line-height: 1.62;
  color: var(--ink);
  max-width: 78ch;
}

.case-shell code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
  padding: 2px 6px;
  border-radius: 3px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  color: var(--ink);
}

.case-meta-strip {
  margin: 0;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

#work-index-content .case-meta-strip {
  grid-template-columns: minmax(130px, 0.68fr) minmax(145px, 0.76fr) minmax(240px, 1.24fr) minmax(280px, 1.32fr);
}

.case-meta-cell {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.case-meta-cell dt {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--subtle);
  text-transform: uppercase;
}

.case-meta-cell dd {
  margin: 0;
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.48;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: break-word;
}

#work-index-content .case-meta-cell:last-child dd {
  white-space: nowrap;
}

.case-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
}

.case-section-head {
  position: static;
  top: auto;
  width: 100%;
}

.case-section-title {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  width: 100%;
}

.case-section-body {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.case-prose {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.case-prose p {
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink);
  max-width: 66ch;
}

.case-constraints-list {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.case-constraints-list li {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink);
  max-width: 72ch;
}

.case-process-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

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

.case-process-step {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
}

.case-process-step h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.case-process-step p {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--ink);
}

.case-figure {
  margin: 0;
  background-color: #ffffff;
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
}

html[data-theme="dark"] .case-figure {
  background-color: var(--card-charcoal);
}

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

.case-figure figcaption {
  padding: 10px 14px;
  font-size: 13.5px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--muted);
  background-color: var(--canvas);
  border-top: 1px solid var(--rule);
}

.case-figure-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  align-items: start;
}

.case-figure-trio {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

.case-decisions-stack {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.case-decision-block {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
}

.case-decision-block:first-child {
  padding-top: 0;
  border-top: none;
}

.case-decision-title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.title-keep {
  white-space: nowrap;
}

.case-sub-en {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--subtle);
}

.case-decision-title .case-sub-en {
  display: block;
  margin-top: 3px;
  font-size: 12.5px;
}

.case-decision-tradeoff {
  margin: 0;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink);
  max-width: 66ch;
}

.case-decision-sublist {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.case-decision-sublist li {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--ink);
  max-width: 66ch;
}

.case-figure--compact {
  max-width: 520px;
}

.case-figure--narrow {
  background-color: var(--canvas);
  padding-top: 16px;
}

.case-figure--narrow img {
  max-width: 260px;
  margin: 0 auto;
  border: 1px solid var(--rule);
  border-bottom: none;
}

.case-spec-box {
  margin: 0;
  padding: 14px 16px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 66ch;
}

.case-spec-row {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--ink);
}

.case-closing-bar {
  margin-top: 8px;
  padding: 16px 18px;
  background-color: var(--canvas);
  border-left: 3px solid var(--signal);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.case-closing-kicker {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.case-closing-sub {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
}

.case-cta-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.case-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 4px;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.case-cta-btn:hover,
.case-cta-btn:focus-visible {
  background-color: var(--signal);
  border-color: var(--signal);
  color: #ffffff;
}

html[data-theme="dark"] .case-cta-btn {
  background-color: var(--ink);
  border-color: var(--ink);
  color: #121212;
}

html[data-theme="dark"] .case-cta-btn:hover,
html[data-theme="dark"] .case-cta-btn:focus-visible {
  background-color: var(--signal);
  border-color: var(--signal);
  color: #121212;
}

.case-cta-sub-en {
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--subtle);
}

.case-caveat-note {
  margin: 0;
  padding: 10px 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  border-left: 2px solid var(--ink);
  background-color: var(--canvas);
}

.case-outcome-list {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.case-outcome-list li {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 66ch;
}

.case-appendix {
  border-top: 1px solid var(--rule);
  padding-top: 28px;
}

.case-appendix-toggle {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.case-appendix-toggle::-webkit-details-marker {
  display: none;
}

.case-appendix-toggle:hover {
  border-color: var(--ink);
}

.case-appendix-hint {
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
}

.case-appendix-content {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.case-appendix-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.case-appendix-group-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.case-appendix-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.case-footer-nav {
  border-top: 1px solid var(--rule);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.case-footer-links {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.case-footer-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.case-footer-link:hover {
  color: var(--signal);
}

/* ==========================================================================
   Short Case Card Variant (.case-shell--short · 30s scannable skeleton)
   ========================================================================== */

.case-shell--short {
  gap: 56px;
}

.case-shell--short .case-section {
  padding-top: 28px;
  gap: 20px;
}

.case-shell--short .case-section-body {
  gap: 18px;
}

.case-hero-title-en {
  display: block;
  margin-top: 6px;
  margin-left: 0;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--subtle);
  text-transform: uppercase;
}

.case-hero-lead-en {
  margin: -4px 0 0;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--muted);
  max-width: 66ch;
}

.case-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
}

.case-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 3px;
}

.case-chips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.case-chip {
  padding: 16px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--ink);
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

.case-chip strong {
  display: block;
  margin-bottom: 2px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.case-process-inline {
  margin: 0;
  padding: 12px 16px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.case-decisions-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.case-decision-card {
  padding: 16px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--ink);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.case-decision-card h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.case-decision-card p {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--ink);
}

.case-figure--hero-flow {
  background-color: var(--canvas);
  padding-top: 20px;
}

.case-figure--hero-flow img {
  max-width: 760px;
  width: 100%;
  height: auto;
  margin: 0 auto;
  border: 1px solid var(--rule);
  border-bottom: none;
  background-color: #ffffff;
}

/* ==========================================================================
   Enterprise Onboarding Storyboard Components (ES1–ES8)
   ========================================================================== */

.eo-hero-step-strip {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--signal);
  border-radius: 4px;
}

.eo-step-strip-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.eo-step-strip-kicker {
  margin: 0;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--subtle);
  text-transform: none;
}

.eo-step-strip-note {
  margin: 0;
  font-size: 12px;
  color: var(--subtle);
}

.eo-step-strip-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.eo-step-item {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.eo-step-item--highlight {
  border-color: var(--signal);
}

.eo-step-num {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--signal);
}

.eo-step-title {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.eo-step-desc {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.eo-step-loop-bar {
  padding: 10px 14px;
  background-color: var(--surface-page);
  border: 1px dashed var(--signal);
  border-radius: 4px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
}

.eo-hero-paths-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.eo-ui-card {
  padding: 18px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.eo-ui-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}

.eo-ui-card-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--signal);
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 3px;
}

.eo-ui-card-meta {
  font-size: 12px;
  color: var(--muted);
}

.eo-ui-card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.eo-ui-mock {
  padding: 14px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.eo-ui-mock-row {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
}

.eo-ui-mock-cta {
  display: inline-flex;
  align-self: flex-start;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--signal);
  border-radius: 3px;
}

html[data-theme="dark"] .eo-ui-mock-cta {
  color: #121212;
}

.eo-ui-card-caption {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.eo-problem-cards,
.eo-voice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.eo-problem-card,
.eo-voice-card {
  padding: 16px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--ink);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.eo-voice-card {
  border-top-color: var(--signal);
}

.eo-card-kicker {
  margin: 0;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--subtle);
}

.eo-card-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.eo-card-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
}

.eo-quote-list {
  margin: 0;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.eo-quote-list li {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
}

.eo-formula-box {
  padding: 18px 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--signal);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.eo-formula-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.eo-formula-pill {
  padding: 6px 12px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}

.eo-formula-pill--target {
  border-color: var(--signal);
  color: var(--signal);
}

.eo-formula-op {
  font-size: 15px;
  font-weight: 700;
  color: var(--muted);
}

.eo-swimlane-box {
  padding: 18px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.eo-swimlane-col {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.eo-swimlane-col h4 {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--signal);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.eo-swimlane-steps {
  margin: 0;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.eo-swimlane-steps li {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
}

.eo-pros-cons-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.eo-pros-cons-card {
  padding: 16px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.eo-pros-cons-card h4 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.eo-canvas-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.eo-canvas-cell {
  padding: 16px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.eo-canvas-cell h4 {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--signal);
}

.eo-canvas-cell p {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
}

.eo-decision-ui-spec {
  margin-top: 6px;
  padding: 12px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.eo-decision-ui-spec-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--signal);
}

.eo-decision-ui-spec-text {
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--ink);
}

.eo-decision-ui-spec-note {
  margin: 0;
  font-size: 11px;
  color: var(--muted);
}

.eo-results-quotes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.eo-result-quote-card {
  padding: 18px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--signal);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.eo-result-quote-card h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.eo-result-quote-card blockquote {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

/* ==========================================================================
   Homepage Numbered Editorial Index (04—06) & All Work Entry Strip
   ========================================================================== */

.recent-work-strip {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}

.recent-work-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.recent-work-kicker {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.recent-work-all-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--signal);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.recent-work-all-link:hover,
.recent-work-all-link:focus-visible {
  color: var(--ink);
}

.editorial-index-rows {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rule);
}

.editorial-index-row {
  display: grid;
  grid-template-columns: 38px 168px minmax(0, 1fr) 24px;
  gap: 20px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  transition: background-color 0.15s ease;
}

.editorial-index-row:hover .index-row-title,
.editorial-index-row:focus-visible .index-row-title {
  color: var(--signal);
}

.editorial-index-row:hover .index-row-thumb,
.editorial-index-row:focus-visible .index-row-thumb {
  transform: translateY(-2px);
  border-color: var(--ink);
  box-shadow: 0 6px 16px rgba(22, 22, 21, 0.1);
}

.index-row-num {
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.35;
  padding-top: 2px;
  padding-right: 10px;
  border-right: 1px solid var(--rule);
  color: var(--signal);
  font-variant-numeric: tabular-nums;
}

.index-row-thumb {
  width: 168px;
  aspect-ratio: 16 / 9;
  padding: 6px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  box-shadow: 0 3px 10px -2px rgba(22, 22, 21, 0.06);
  overflow: hidden;
  flex-shrink: 0;
  transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.2s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.18s ease;
}

.index-row-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  border-radius: 2px;
  box-shadow: 0 1px 4px rgba(22, 22, 21, 0.06);
}

.index-row-main {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.index-row-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.index-row-title {
  margin: 0;
  font-size: 18.5px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  transition: color 0.15s ease;
}

.index-row-tag {
  font-size: 11px;
  font-weight: 400;
  color: var(--subtle);
  opacity: 0.72;
  margin-left: auto;
}

.index-row-outcome {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
  max-width: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.index-row-role {
  margin: 0;
  font-size: 11.5px;
  font-weight: 400;
  line-height: 1.45;
  color: var(--subtle);
  opacity: 0.65;
}

.index-row-arrow {
  font-size: 16px;
  line-height: 1.35;
  padding-top: 2px;
  color: var(--muted);
  text-align: right;
}

/* ==========================================================================
   Work Index Page (/work/index.html)
   ========================================================================== */

.work-index-group {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
}

.work-index-group-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 4px;
}

.work-index-group-title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

.work-index-group-sub {
  margin: 0;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--subtle);
}

.work-index-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.work-index-card {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 28px;
  padding: 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  align-items: center;
  transition: border-color 0.2s ease;
}

.work-index-card:hover,
.work-index-card:focus-visible {
  border-color: var(--signal);
}

.work-index-thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  background-color: var(--card-charcoal);
  border: 1px solid var(--rule);
  border-radius: 3px;
  overflow: hidden;
}

.work-index-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.work-index-card:hover .work-index-thumb img,
.work-index-card:focus-visible .work-index-thumb img {
  transform: scale(1.02);
}

.work-index-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.work-index-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.work-index-meta .case-tag {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--muted);
  background-color: var(--surface-page);
}

.work-index-num {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--signal);
}

.work-index-title {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
  transition: color 0.2s ease;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.work-index-card:hover .work-index-title,
.work-index-card:focus-visible .work-index-title {
  color: var(--signal);
}

.work-index-summary {
  margin: 0;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--ink);
  max-width: 64ch;
}

.work-index-foot {
  margin-top: 2px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.work-index-cta {
  margin-top: 2px;
  font-size: 14px;
  font-weight: 600;
  color: var(--signal);
}

.work-index-foot .work-index-cta {
  margin-top: 0;
}

.work-index-demo-note {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--muted);
}

/* ==========================================================================
   Responsive Breakpoints & Reduced Motion
   ========================================================================== */

@media (max-width: 960px) {
  .nav-backdrop.is-open {
    display: block;
    position: fixed;
    inset: 0;
    background-color: rgba(22, 22, 21, 0.42);
    z-index: 45;
  }

  .topbar-nav.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-height: 100dvh;
    overflow-y: auto;
    z-index: 50;
    background-color: var(--surface-page);
    padding: 16px 24px 22px;
    border-bottom: 1px solid var(--rule);
    box-shadow: 0 18px 42px rgba(0, 0, 0, 0.14);
    gap: 10px;
  }

  .nav-drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--rule);
  }

  .nav-drawer-title {
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--muted);
  }

  .nav-close-btn {
    appearance: none;
    border: 1px solid var(--rule);
    background-color: var(--control-bg);
    color: var(--ink);
    width: 34px;
    height: 34px;
    border-radius: 2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-left: auto;
  }

  .nav-close-btn:hover,
  .nav-close-btn:focus-visible {
    border-color: var(--ink);
    color: var(--ink);
  }

  .nav-close-btn svg {
    width: 17px;
    height: 17px;
  }

  .nav-links-list {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .topbar-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 4px;
    font-size: 17px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--ink);
    border-bottom: 1px solid var(--rule);
  }

  .topbar-nav a:last-child {
    border-bottom: none;
  }

  .hero-editorial-grid,
  .projects-asymmetric-row,
  .about-editorial-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .project-card--lead .project-card-outcome {
    white-space: normal;
  }

  .projects-asymmetric-row .project-card-frame {
    height: auto;
  }

  .projects-asymmetric-row .project-card-media {
    height: auto;
    aspect-ratio: 16 / 10;
  }

  .editorial-index-row {
    grid-template-columns: 34px 140px minmax(0, 1fr);
    gap: 16px;
  }

  .index-row-outcome {
    white-space: normal;
  }

  .index-row-thumb {
    width: 140px;
  }

  .index-row-arrow {
    display: none;
  }

  .case-meta-strip,
  #work-index-content .case-meta-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #work-index-content .case-meta-cell:last-child dd {
    white-space: normal;
  }

  .case-section {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .case-section-head {
    position: static;
  }

  .case-process-steps,
  .case-process-steps--four,
  .case-figure-trio,
  .case-chips,
  .case-decisions-grid,
  .work-index-card,
  .eo-problem-cards,
  .eo-voice-grid,
  .eo-swimlane-grid,
  .eo-canvas-grid {
    grid-template-columns: 1fr;
  }

  .eo-step-strip-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pdp-stages-grid,
  .pdp-layout-models-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pdp-priority-grid,
  .pdp-ia-grid,
  .pdp-abandon-split,
  .pdp-journey-grid,
  .nss-Scale-row {
    grid-template-columns: 1fr;
  }

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

/* ==========================================================================
   PDP Case Study Storyboard Components (PS1–PS7)
   ========================================================================== */

.pdp-stages-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

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

.pdp-priority-card {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--ink);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pdp-priority-card--p1 {
  border-top-color: var(--signal);
}

.pdp-priority-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.pdp-priority-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.pdp-priority-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 3px;
  color: var(--signal);
  background-color: var(--canvas);
  border: 1px solid var(--rule);
}

.pdp-layout-models-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.pdp-layout-card {
  padding: 16px 16px 14px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pdp-layout-card--selected {
  border-color: var(--signal);
  border-top: 3px solid var(--signal);
}

.pdp-wireframe-box {
  padding: 10px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 3px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 112px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  color: var(--muted);
}

.pdp-wf-row {
  padding: 4px 6px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--ink);
  font-size: 11px;
  line-height: 1.35;
}

.pdp-wf-row--accent {
  border-color: var(--signal);
  color: var(--signal);
  font-weight: 600;
}

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

.pdp-ia-col {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pdp-ia-col--primary {
  border-top-color: var(--signal);
}

.pdp-ia-col h4 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.pdp-ia-sub {
  margin: -4px 0 0;
  font-size: 12px;
  color: var(--muted);
}

.pdp-ia-tree {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pdp-ia-node {
  padding: 7px 10px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 3px;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink);
}

.pdp-ia-node--diff {
  border-left: 3px solid var(--signal);
}

.pdp-ia-node--shared {
  color: var(--muted);
  border-style: dashed;
}

.pdp-hierarchy-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pdp-hierarchy-row {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 14px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  align-items: baseline;
}

.pdp-hierarchy-level {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--signal);
}

.pdp-hierarchy-content {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
}

.pdp-abandon-split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 20px;
  align-items: start;
}

.pdp-abandon-card {
  padding: 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--signal);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
}

.pdp-big-stat-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  padding: 12px 14px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.pdp-big-stat-num {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 800;
  line-height: 1;
  color: var(--signal);
}

.pdp-big-stat-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.pdp-ui-frame,
.eo-ui-frame {
  background-color: var(--surface-page);
  padding: 14px 14px 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.eo-decision-ui-spec .eo-ui-frame {
  padding: 0;
}

.pdp-ui-frame img,
.eo-ui-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 560px;
  margin: 0 auto;
  border: 1px solid var(--rule);
  border-bottom: none;
  border-radius: 4px 4px 0 0;
  object-fit: contain;
  background-color: #ffffff;
}

.pdp-abandon-split .pdp-ui-frame img {
  max-height: 600px;
}

.pdp-chart-card {
  padding: 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pdp-chart-svg-wrap {
  width: 100%;
  overflow-x: auto;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 14px;
}

.pdp-chart-svg-wrap svg {
  display: block;
  width: 100%;
  height: auto;
  min-width: 540px;
}

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

/* ==========================================================================
   NSS Case Study Storyboard Components (NS1–NS7)
   ========================================================================== */

.nss-table-wrap {
  width: 100%;
  overflow-x: auto;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.nss-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
  min-width: 620px;
}

.nss-table th,
.nss-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  vertical-align: top;
}

.nss-table th:last-child,
.nss-table td:last-child {
  border-right: none;
}

.nss-table tbody tr:last-child td,
.nss-table tbody tr:last-child th {
  border-bottom: none;
}

.nss-table thead th {
  background-color: var(--canvas);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.nss-table tbody th {
  background-color: var(--canvas);
  font-weight: 600;
  color: var(--ink);
  width: 112px;
}

.nss-risk-badge,
.nss-status-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 7px;
  font-size: 11.5px;
  font-weight: 600;
  border-radius: 2px;
  border: 1px solid var(--rule);
  background-color: var(--canvas);
  color: var(--ink);
  white-space: nowrap;
}

.nss-risk-badge--high {
  border-color: #d94848;
  color: #c53030;
  background-color: rgba(217, 72, 72, 0.08);
}

.nss-risk-badge--mid {
  border-color: #d68b00;
  color: #b26b00;
  background-color: rgba(214, 139, 0, 0.08);
}

.nss-risk-badge--low {
  border-color: #1f8b4c;
  color: #18733d;
  background-color: rgba(31, 139, 76, 0.08);
}

html[data-theme="dark"] .nss-risk-badge--high {
  color: #ff8080;
}

html[data-theme="dark"] .nss-risk-badge--mid {
  color: #ffca66;
}

html[data-theme="dark"] .nss-risk-badge--low {
  color: #6ee79e;
}

.nss-status-badge--req {
  border-color: var(--signal);
  color: var(--signal);
}

.nss-status-badge--done {
  border-color: #1f8b4c;
  color: #18733d;
}

html[data-theme="dark"] .nss-status-badge--done {
  color: #6ee79e;
}

.nss-cell-pros {
  background-color: rgba(31, 139, 76, 0.04);
}

.nss-cell-cons {
  background-color: rgba(217, 72, 72, 0.04);
}

.nss-Scale-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.nss-scale-pill {
  padding: 8px 12px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  color: var(--ink);
}

.nss-scale-pill--detractor {
  border-left: 3px solid #d94848;
}

.nss-scale-pill--passive {
  border-left: 3px solid #d68b00;
}

.nss-scale-pill--promoter {
  border-left: 3px solid #1f8b4c;
}

.nss-emotion-stages-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.nss-emotion-stage-card {
  padding: 10px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nss-emotion-stage-card--dip {
  border-top: 2px solid #d94848;
}

.nss-emotion-stage-card--peak {
  border-top: 2px solid #1f8b4c;
}

.nss-emotion-stage-num {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  color: var(--signal);
  letter-spacing: 0.04em;
}

.nss-emotion-stage-title {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

.nss-emotion-stage-quote {
  margin: 0;
  font-size: 11.5px;
  line-height: 1.45;
  color: var(--muted);
}

/* ==========================================================================
   OOP Case Study Storyboard Components (OS1–OS8)
   ========================================================================== */

.oop-hero-stack,
.oop-stack-frames {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.oop-hero-aux-grid,
.oop-ds-compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.oop-ds-compare-card {
  padding: 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.oop-ds-col {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.oop-ds-col--selected {
  border-top-color: var(--signal);
}

.oop-ds-col-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.oop-ds-col-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.oop-ds-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 3px;
  border: 1px solid var(--rule);
  background-color: var(--canvas);
  color: var(--muted);
}

.oop-ds-badge--target {
  border-color: var(--signal);
  color: var(--signal);
}

.oop-ds-list {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
}

.oop-ds-conclusion-bar {
  padding: 12px 14px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--signal);
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
}

.oop-ds-tag-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 14px;
  font-size: 13px;
  color: var(--muted);
}

.oop-ds-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 3px;
  font-size: 12.5px;
  color: var(--ink);
}

.oop-token-boundary-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.oop-token-tier {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.oop-token-tier--stop {
  border-color: var(--signal);
  border-top: 3px solid var(--signal);
}

.oop-token-tier--skip {
  opacity: 0.72;
  border-style: dashed;
}

.oop-token-tier-kicker {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.oop-token-tier--stop .oop-token-tier-kicker {
  color: var(--signal);
}

.oop-token-tier-name {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.oop-token-tier-desc {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--muted);
}

/* ==========================================================================
   DTC Hub Case Study Storyboard Components (DS1–DS6)
   ========================================================================== */

.dtc-hero-stack,
.dtc-lift-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.dtc-hero-status-strip {
  padding: 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--signal);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dtc-status-strip-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

.dtc-ops-space-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 3px;
}

html[data-theme="dark"] .dtc-ops-space-pill {
  background-color: var(--surface-page);
  color: var(--ink);
  border-color: var(--rule);
}

.dtc-status-priority-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 5px;
  font-size: 11.5px;
  color: var(--subtle);
}

.dtc-status-chip {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 2px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  color: var(--ink);
}

.dtc-status-chip--warn {
  border-color: #d68b00;
  color: #b26b00;
  background-color: rgba(214, 139, 0, 0.08);
}

.dtc-status-chip--ok {
  border-color: #1f8b4c;
  color: #18733d;
  background-color: rgba(31, 139, 76, 0.08);
}

.dtc-status-chip--info {
  border-color: var(--signal);
  color: var(--signal);
  background-color: rgba(43, 68, 80, 0.08);
}

html[data-theme="dark"] .dtc-status-chip--warn {
  color: #ffca66;
}

html[data-theme="dark"] .dtc-status-chip--ok {
  color: #6ee79e;
}

html[data-theme="dark"] .dtc-status-chip--info {
  color: #93c5fd;
}

.dtc-hero-frames-grid {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.dtc-hero-right-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dtc-layout-summary-box {
  padding: 18px 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dtc-status-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.dtc-status-card {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--ink);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dtc-status-card--accent {
  border-top-color: var(--signal);
}

.dtc-status-card-kicker {
  margin: 0;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--subtle);
}

.dtc-status-card-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.dtc-status-card-desc {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ink);
}

.dtc-sidebar-compare-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

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

.dtc-sidebar-card {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dtc-sidebar-card--after {
  border-color: var(--signal);
  border-top: 3px solid var(--signal);
}

.dtc-sidebar-card img {
  display: block;
  width: 100%;
  max-width: 220px;
  height: auto;
  margin: 0 auto;
  border: 1px solid var(--rule);
  border-radius: 3px;
}

.dtc-conflict-flow-card {
  padding: 18px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--signal);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dtc-conflict-frames-split {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(240px, 0.65fr);
  gap: 16px;
  align-items: start;
}

.dtc-picker-legend-card {
  padding: 18px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dtc-picker-legend-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.dtc-picker-legend-item {
  padding: 12px 14px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.dtc-legend-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: #c018d0;
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.dtc-legend-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
}

.dtc-legend-text strong {
  display: block;
  margin-bottom: 2px;
  font-size: 13.5px;
  color: var(--ink);
}

.dtc-step-proxy-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

/* ==========================================================================
   EDM LAB Case Study Storyboard Components (MS1–MS5)
   ========================================================================== */

.edm-hero-strip {
  padding: 16px 18px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--signal);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.edm-hero-strip-col {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.edm-hero-strip-col--before {
  border-left: 3px solid #d68b00;
}

.edm-hero-strip-col--after {
  border-left: 3px solid #1f8b4c;
}

.edm-before-panel {
  padding: 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-top: 3px solid #d68b00;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.edm-before-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

.edm-schematic-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: 3px;
  border: 1px solid #d68b00;
  color: #b26b00;
  background-color: rgba(214, 139, 0, 0.08);
}

html[data-theme="dark"] .edm-schematic-badge {
  color: #ffca66;
}

.edm-handoff-chain {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.edm-handoff-node {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-top: 2px solid #d68b00;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.edm-handoff-step {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #b26b00;
}

html[data-theme="dark"] .edm-handoff-step {
  color: #ffca66;
}

.edm-handoff-tool {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.edm-handoff-pain {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ink);
}

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

.edm-blank-canvas-box {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px dashed var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.edm-editor-detail-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

.edm-ai-scope-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.edm-ai-scope-card {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--signal);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.edm-step-proxy-card {
  padding: 20px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.edm-step-proxy-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.edm-step-col {
  padding: 16px;
  background-color: var(--surface-page);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.edm-step-col--before {
  border-top-color: #d68b00;
}

.edm-step-col--after {
  border-top-color: #1f8b4c;
}

.edm-step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.edm-step-item {
  padding: 9px 12px;
  background-color: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 3px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink);
}

@media (max-width: 960px) {
  #experience .record-block {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .pdp-stages-grid,
  .pdp-layout-models-grid,
  .oop-token-boundary-strip,
  .dtc-status-cards-grid,
  .edm-handoff-chain,
  .edm-ai-scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pdp-priority-grid,
  .pdp-ia-grid,
  .pdp-abandon-split,
  .pdp-journey-grid,
  .nss-Scale-row,
  .oop-ds-compare-grid,
  .dtc-hero-frames-grid,
  .dtc-sidebar-compare-grid,
  .dtc-conflict-frames-split,
  .dtc-picker-legend-grid,
  .dtc-step-proxy-grid,
  .edm-hero-strip-grid,
  .edm-blank-canvas-split,
  .edm-editor-detail-split,
  .edm-step-proxy-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  html {
    scroll-padding-top: 7.5rem;
  }

  [id],
  section[id],
  details[id],
  figure[id],
  div[id],
  article[id],
  .portfolio-section,
  .case-section,
  .work-index-group,
  .section-header,
  .section-title,
  .case-section-title,
  .work-index-group-title,
  .case-decision-block,
  .case-decision-card,
  h1[id],
  h2[id],
  h3[id] {
    scroll-margin-top: 7.5rem;
  }

  .site-topbar {
    padding: 12px 0;
  }

  .topbar-inner {
    width: calc(100vw - 32px);
  }

  .case-topbar-nav {
    gap: 6px 12px;
  }

  .case-topbar-link {
    font-size: 13px;
    white-space: nowrap;
  }

  .page-main {
    width: calc(100vw - 32px);
    gap: 72px;
    padding-bottom: 16px;
  }

  .case-shell {
    width: calc(100vw - 32px);
    gap: 48px;
    padding: 20px 0 64px;
  }

  .case-meta-strip,
  #work-index-content .case-meta-strip,
  .case-figure-pair,
  .case-appendix-grid,
  .eo-hero-paths-grid,
  .eo-pros-cons-grid,
  .eo-results-quotes,
  .eo-step-strip-list,
  .pdp-stages-grid,
  .pdp-Layout-models-grid,
  .pdp-layout-models-grid,
  .pdp-hierarchy-row,
  .nss-emotion-stages-grid,
  .oop-hero-aux-grid,
  .oop-ds-compare-grid,
  .oop-token-boundary-strip,
  .dtc-status-cards-grid,
  .dtc-sidebar-compare-grid--two,
  .edm-handoff-chain,
  .edm-ai-scope-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-section {
    gap: 28px;
  }

  .hero-section {
    padding-top: 20px;
  }

  .hero-positioning {
    font-size: 20px;
  }

  .editorial-index-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .index-row-num {
    border-right: none;
    padding-right: 0;
  }

  .index-row-tag {
    margin-left: 0;
  }

  .index-row-thumb {
    width: 100%;
    max-width: 280px;
  }

  .two-col-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .writing-item {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 16px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}