:root {
  color-scheme: light;
  --portfolio-canvas: #ffffff;
  --portfolio-surface: #f1f4f7;
  --portfolio-ink: #0a1317;
  --portfolio-body: #1c1e21;
  --portfolio-muted: #5d6c7b;
  --portfolio-line: #dee3e9;
  --portfolio-content: 1280px;
  --portfolio-reading: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--portfolio-canvas);
  color: var(--portfolio-body);
  font-family: "Optimistic VF", Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

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

a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--portfolio-ink);
  outline-offset: 4px;
}

.portfolio-skip-link {
  position: fixed;
  top: 12px;
  left: 16px;
  z-index: 100;
  margin: 0;
  padding: 12px 18px;
  border-radius: 100px;
  color: #ffffff;
  background: var(--portfolio-ink);
  font-weight: 700;
  transform: translateY(-160%);
}

.portfolio-skip-link:focus,
.portfolio-skip-link:focus-within {
  transform: translateY(0);
}

.portfolio-main > * {
  width: min(100% - 64px, var(--portfolio-content));
  max-width: var(--portfolio-content);
  margin-inline: auto;
}

.portfolio-main .wp-block-post-content > .portfolio-hero,
.portfolio-main .wp-block-post-content > .portfolio-section,
.portfolio-main .wp-block-post-content > .portfolio-page-header,
.portfolio-main .wp-block-post-content > .portfolio-case {
  max-width: none;
  margin-right: 0;
  margin-left: 0;
}

.portfolio-nav {
  position: relative;
  z-index: 10;
  width: min(100% - 64px, var(--portfolio-content));
  height: 72px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 28px;
  border-bottom: 1px solid var(--portfolio-line);
  white-space: nowrap;
}

.portfolio-name {
  margin-top: 0;
  margin-bottom: 0;
  margin-right: auto;
  color: var(--portfolio-ink);
  font-size: 18px;
  font-weight: 700;
}

.portfolio-links {
  display: flex;
  align-items: center;
  font-size: 14px;
  font-weight: 700;
}

.portfolio-nav .wp-block-navigation__container {
  gap: 24px;
}

.portfolio-nav .wp-block-navigation-item__content {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-bottom: 2px solid transparent;
  font-weight: 700;
  text-decoration: none;
}

.portfolio-nav .wp-block-navigation-item__content[aria-current="page"],
.portfolio-nav .current-menu-item > .wp-block-navigation-item__content {
  border-color: var(--portfolio-ink);
}

.portfolio-nav .wp-block-navigation__responsive-container-open,
.portfolio-nav .wp-block-navigation__responsive-container-close {
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--portfolio-ink);
}

.portfolio-nav .wp-block-navigation__responsive-container-open {
  display: none;
}

.language-switch,
.portfolio-button {
  min-height: 44px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--portfolio-ink);
  border-radius: 100px;
  color: var(--portfolio-ink);
  background: transparent;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  transition: background-color 180ms ease-out, color 180ms ease-out, transform 180ms ease-out;
}

.portfolio-button.is-primary {
  color: #ffffff;
  background: var(--portfolio-ink);
}

.portfolio-button:hover,
.language-switch:hover {
  color: #ffffff;
  background: var(--portfolio-ink);
}

.portfolio-button:active,
.language-switch:active {
  transform: translateY(1px);
}

.portfolio-hero {
  min-height: 610px;
  padding: 64px 0 72px;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.55fr);
  gap: 32px;
  align-items: center;
}

.portfolio-role {
  margin: 0 0 24px;
  color: var(--portfolio-muted);
  font-size: 14px;
  font-weight: 700;
}

.portfolio-hero h1,
.portfolio-case-header h1,
.portfolio-page-header h1 {
  max-width: 700px;
  margin: 0;
  color: var(--portfolio-ink);
  font-size: clamp(42px, 5vw, 64px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.portfolio-hero h1 {
  max-width: 860px;
  font-size: clamp(36px, 3vw, 44px);
  line-height: 1.12;
}

.portfolio-lead {
  max-width: 520px;
  margin: 24px 0 0;
  color: var(--portfolio-muted);
  font-size: 18px;
  line-height: 1.5;
}

.portfolio-actions {
  margin-top: 32px;
  display: flex;
  gap: 12px;
}

.portfolio-image {
  margin: 0;
  overflow: hidden;
  border-radius: 32px;
  background: var(--portfolio-surface);
}

.portfolio-image img {
  width: 100%;
  height: auto;
  display: block;
}

.portfolio-image figcaption {
  padding: 14px 18px 18px;
  color: var(--portfolio-muted);
  font-size: 13px;
}

.portfolio-chart-summary {
  border-top: 1px solid var(--portfolio-line);
  background: var(--portfolio-canvas);
}

.portfolio-chart-summary summary {
  min-height: 44px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  color: var(--portfolio-ink);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.portfolio-chart-summary > p {
  max-width: 72ch;
  margin: 0;
  padding: 4px 18px 20px;
  color: var(--portfolio-body);
  font-size: 14px;
  line-height: 1.65;
}

.portfolio-data-table {
  margin: 0 18px 20px;
  overflow-x: auto;
  border: 1px solid var(--portfolio-line);
  border-radius: 8px;
}

.portfolio-data-table:focus-visible {
  outline: 3px solid var(--portfolio-ink);
  outline-offset: 3px;
}

.portfolio-data-table table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: var(--portfolio-canvas);
  color: var(--portfolio-body);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.portfolio-data-table caption {
  padding: 12px;
  color: var(--portfolio-ink);
  font-weight: 700;
  text-align: left;
}

.portfolio-data-table th,
.portfolio-data-table td {
  padding: 10px 12px;
  border-top: 1px solid var(--portfolio-line);
  text-align: left;
  white-space: nowrap;
}

.portfolio-data-table thead th {
  color: var(--portfolio-ink);
  background: var(--portfolio-surface);
}

.portfolio-section {
  padding: 104px 0;
  border-top: 1px solid var(--portfolio-line);
}

.portfolio-section > h2,
.portfolio-method > h2 {
  max-width: 720px;
  margin: 0 0 48px;
  color: var(--portfolio-ink);
  font-size: clamp(34px, 4vw, 48px);
  font-weight: 500;
  line-height: 1.17;
  letter-spacing: -0.035em;
}

.portfolio-project {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 48px;
  align-items: end;
}

.portfolio-project + .portfolio-project {
  margin-top: 96px;
}

.portfolio-project:nth-of-type(even) {
  grid-template-columns: 1.12fr 0.88fr;
  align-items: start;
}

.portfolio-project h2,
.portfolio-project h3 {
  margin: 0 0 16px;
  color: var(--portfolio-ink);
  font-size: 38px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.portfolio-project p {
  max-width: 620px;
  margin: 0 0 24px;
  color: var(--portfolio-muted);
  line-height: 1.6;
}

.portfolio-text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-bottom: 2px solid var(--portfolio-ink);
  color: var(--portfolio-ink);
  font-weight: 700;
}

.portfolio-method {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 80px;
}

.portfolio-method-list {
  border-top: 1px solid var(--portfolio-ink);
}

.portfolio-method-row {
  padding: 25px 0;
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 28px;
  border-bottom: 1px solid var(--portfolio-line);
}

.portfolio-method-row strong {
  color: var(--portfolio-ink);
}

.portfolio-method-row span {
  color: var(--portfolio-muted);
}

.portfolio-page-header,
.portfolio-case-header {
  padding: 88px 0 72px;
}

.portfolio-page-header p,
.portfolio-case-header p {
  max-width: 700px;
  margin: 28px 0 0;
  color: var(--portfolio-muted);
  font-size: 20px;
  line-height: 1.55;
}

.portfolio-case {
  padding-bottom: 112px;
}

.portfolio-case-section {
  max-width: var(--portfolio-reading);
  padding: 72px 0;
  border-top: 1px solid var(--portfolio-line);
}

.portfolio-case-section.is-wide {
  max-width: none;
}

.portfolio-case-section h2 {
  margin: 0 0 24px;
  color: var(--portfolio-ink);
  font-size: 32px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.portfolio-case-section p {
  max-width: 700px;
  margin: 0 0 18px;
  color: var(--portfolio-body);
  line-height: 1.7;
}

.portfolio-evidence-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 32px;
  align-items: start;
}

.portfolio-evidence-note {
  padding: 32px;
  border-radius: 24px;
  background: var(--portfolio-surface);
}

.portfolio-evidence-note h3 {
  margin: 0 0 18px;
  color: var(--portfolio-ink);
  font-size: 24px;
  font-weight: 500;
}

.portfolio-evidence-note p:last-child {
  margin-bottom: 0;
}

.portfolio-metrics {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 24px;
}

.portfolio-metric {
  padding: 32px 0;
  border-top: 1px solid var(--portfolio-ink);
}

.portfolio-metric strong {
  display: block;
  color: var(--portfolio-ink);
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 500;
  letter-spacing: -0.03em;
}

.portfolio-metric span {
  display: block;
  max-width: 440px;
  margin-top: 12px;
  color: var(--portfolio-muted);
}

.portfolio-market-evidence {
  margin: 32px 0;
  border-top: 1px solid var(--portfolio-ink);
}

.portfolio-market-evidence > div {
  min-height: 72px;
  display: grid;
  grid-template-columns: minmax(120px, 0.35fr) 1fr;
  gap: 24px;
  align-items: center;
  border-bottom: 1px solid var(--portfolio-line);
}

.portfolio-market-evidence strong {
  color: var(--portfolio-ink);
  font-size: 28px;
  font-weight: 500;
}

.portfolio-market-evidence span {
  color: var(--portfolio-muted);
}

.portfolio-footer {
  width: min(100% - 64px, var(--portfolio-content));
  margin-inline: auto;
  padding: 48px 0;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--portfolio-line);
  color: var(--portfolio-muted);
  font-size: 14px;
}

.portfolio-footer strong {
  color: var(--portfolio-ink);
}

.portfolio-footer p {
  margin: 0;
}

@media (max-width: 1080px) {
  .portfolio-nav {
    gap: 18px;
  }

  .portfolio-nav .wp-block-navigation__container {
    gap: 16px;
  }
}

@media (max-width: 767px) {
  .portfolio-main > *,
  .portfolio-nav,
  .portfolio-footer {
    width: min(100% - 32px, var(--portfolio-content));
  }

  .portfolio-nav {
    height: 68px;
    gap: 10px;
  }

  .portfolio-links {
    order: 2;
  }

  .portfolio-nav .wp-block-navigation__responsive-container:not(.is-menu-open) {
    display: none;
  }

  .portfolio-nav .wp-block-navigation__responsive-container-open {
    display: flex;
    border: 1px solid var(--portfolio-line);
    border-radius: 100px;
    cursor: pointer;
  }

  .portfolio-nav .wp-block-navigation__responsive-container.is-menu-open {
    padding: 16px;
    color: var(--portfolio-ink);
    background: var(--portfolio-canvas);
  }

  .portfolio-nav .wp-block-navigation__responsive-container-close {
    display: flex;
    border: 1px solid var(--portfolio-line);
    border-radius: 100px;
  }

  .portfolio-nav .wp-block-navigation__responsive-container-content {
    padding-top: 72px;
    align-items: flex-start;
  }

  .portfolio-nav .wp-block-navigation__responsive-container-content .wp-block-navigation__container {
    width: 100%;
    align-items: stretch;
    gap: 0;
  }

  .portfolio-nav .wp-block-navigation__responsive-container-content .wp-block-navigation-item__content {
    width: 100%;
    min-height: 52px;
    border-bottom: 1px solid var(--portfolio-line);
    font-size: 18px;
  }

  .language-switch {
    order: 3;
    padding: 0 14px;
  }

  .portfolio-hero,
  .portfolio-project,
  .portfolio-project:nth-of-type(even),
  .portfolio-method,
  .portfolio-method-row,
  .portfolio-evidence-grid,
  .portfolio-metrics {
    grid-template-columns: 1fr;
  }

  .portfolio-market-evidence > div {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px 0;
  }

  .portfolio-hero {
    min-height: auto;
    padding: 48px 0 64px;
    gap: 36px;
  }

  .portfolio-case-header h1,
  .portfolio-page-header h1 {
    font-size: clamp(36px, 12vw, 48px);
  }

  .portfolio-hero h1 {
    max-width: none;
    font-size: clamp(34px, 10.5vw, 44px);
    line-height: 1.12;
  }

  .portfolio-section {
    padding: 72px 0;
  }

  .portfolio-project + .portfolio-project {
    margin-top: 64px;
  }

  .portfolio-method {
    gap: 24px;
  }

  .portfolio-method-row {
    gap: 8px;
  }

  .portfolio-page-header,
  .portfolio-case-header {
    padding: 64px 0 56px;
  }

  .portfolio-case-section {
    padding: 56px 0;
  }

  .portfolio-footer {
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}