/* Self-hosted Noto Sans KR, SIL Open Font License: ../fonts/OFL.txt */
@font-face {
  font-family: "Noto Sans KR Variable";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/noto-sans-kr.woff2") format("woff2");
}

body {
  --folio-bg: #fbfcfa;
  --folio-surface: #fff;
  --folio-ink: #202b28;
  --folio-muted: #64736c;
  --folio-line: #dce4df;
  --folio-accent: #24684d;
  --folio-tint: #eef3ed;

  color: var(--folio-ink);
  background: var(--folio-bg);
  font-family:
    "Noto Sans KR Variable",
    "Malgun Gothic",
    "Apple SD Gothic Neo",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Noto Sans KR",
    sans-serif;
  line-height: 1.8;
}

body[data-theme="dark"] {
  --folio-bg: #141b19;
  --folio-surface: #1b2521;
  --folio-ink: #e3ece6;
  --folio-muted: #a6b8ad;
  --folio-line: #35483d;
  --folio-accent: #9cd8b5;
  --folio-tint: #23352b;
}

body .side-bar,
body .main-header,
body .search-input,
body .search-results {
  background: var(--folio-surface);
  color: var(--folio-ink);
  border-color: var(--folio-line);
}

body .site-title,
body .main-content h1,
body .main-content h2,
body .main-content h3 {
  color: var(--folio-ink);
}

body a,
body .nav-list .nav-list-item .nav-list-link {
  color: var(--folio-accent);
}

body .nav-list .nav-list-item .nav-list-link.active,
body .nav-list .nav-list-item .nav-list-link:hover {
  background: var(--folio-tint);
}

body .site-title {
  font-size: 21px;
  font-weight: 750;
  letter-spacing: -0.7px;
}

body .main-content {
  font-size: 16px;
}

body .main-content h1 {
  letter-spacing: -1px;
  line-height: 1.35;
}

body .main-content h2 {
  margin-top: 2.5rem;
}

body .main-content table {
  border: 1px solid var(--folio-line);
  border-radius: 10px;
}

body .main-content th,
body .main-content td {
  border-color: var(--folio-line);
}

body .main-content blockquote {
  padding: 12px 20px;
  border-left: 3px solid var(--folio-accent);
  background: var(--folio-tint);
}

body :focus-visible {
  outline: 3px solid var(--folio-accent);
  outline-offset: 4px;
}

body .site-footer {
  color: var(--folio-muted);
  font-size: 11px;
  letter-spacing: 1px;
}

.portfolio-hero {
  padding: 42px 0 32px;
  border-bottom: 1px solid var(--folio-line);
}

.main-content .eyebrow {
  margin: 0 0 20px;
  color: var(--folio-accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
}

.portfolio-home .main-content .portfolio-hero h1 {
  margin: 0;
  font-size: clamp(34px, 4.5vw, 58px) !important;
  font-weight: 750;
  letter-spacing: -2px;
  line-height: 1.28;
}

.portfolio-hero h1 span {
  color: var(--folio-accent);
}

.hero-description {
  margin: 26px 0;
  color: var(--folio-muted);
  word-break: keep-all;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.main-content a.portfolio-button,
.main-content a.portfolio-secondary {
  display: inline-flex;
  gap: 20px;
  align-items: center;
  padding: 12px 20px;
  border: 1px solid var(--folio-line);
  border-radius: 8px;
  background-image: none;
  font-size: 14px;
  font-weight: 600;
}

.main-content a.portfolio-button {
  border-color: var(--folio-accent);
  background: var(--folio-accent);
  color: var(--folio-bg);
}

.hero-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 40px;
  color: var(--folio-muted);
  font-size: 10px;
  letter-spacing: 1.5px;
}

.portfolio-section {
  padding-top: 40px;
  scroll-margin-top: 80px;
}

.section-heading {
  display: flex;
  gap: 16px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 20px;
}

.main-content .section-heading .eyebrow {
  margin-bottom: 8px;
}

.main-content .section-heading h2 {
  margin: 0;
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -1px;
}

.section-caption {
  color: var(--folio-muted);
  font-size: 12px;
  white-space: nowrap;
}

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

.main-content a.topic-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--folio-line);
  border-radius: 14px;
  background: var(--folio-surface);
  color: var(--folio-ink);
  transition:
    border-color 180ms ease,
    transform 180ms ease;
}

.main-content a.topic-card:hover {
  transform: translateY(-3px);
  border-color: var(--folio-accent);
}

.topic-index {
  display: flex;
  justify-content: space-between;
  color: var(--folio-accent);
  font-size: 12px;
  font-weight: 650;
}

.main-content .topic-card h3 {
  margin: 24px 0 10px;
  font-size: 21px;
  font-weight: 700;
}

.topic-card p {
  flex: 1;
  margin: 0 0 24px;
  color: var(--folio-muted);
  font-size: 14px;
  word-break: keep-all;
}

.topic-meta {
  color: var(--folio-accent);
  font-size: 12px;
}

.main-content .learning-paths a {
  display: flex;
  gap: 20px;
  align-items: center;
  padding: 24px 4px;
  border-bottom: 1px solid var(--folio-line);
  background-image: none;
}

.learning-paths a div {
  flex: 1;
}

.main-content .learning-paths h3 {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 650;
}

.learning-paths p {
  margin: 0;
  color: var(--folio-muted);
  font-size: 13px;
}

.path-number {
  color: var(--folio-muted);
  font-size: 12px;
}

.portfolio-signoff {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  padding: 42px 0 20px;
  color: var(--folio-muted);
  font-size: 12px;
}

@media (min-width: 66.5rem) {
  body .main {
    max-width: 1060px;
  }
}

@media (max-width: 600px) {
  .topic-grid {
    grid-template-columns: 1fr;
  }

  .section-caption {
    display: none;
  }

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

@media (prefers-reduced-motion: reduce) {
  .main-content a.topic-card {
    transition: none;
  }
}

body .nav-list {
  background: transparent;
}

body .nav-list .nav-list-expander {
  color: var(--folio-accent);
}

.portfolio-home .scroll-nav {
  display: none;
}

.main-content .hero-description {
  margin: 26px 0;
}

/* Bridge the original theme tokens at every navigation depth. */
body,
body[data-theme="light"],
body[data-theme="dark"] {
  --nav-child-link-color: var(--folio-accent);
  --link-color: var(--folio-accent);
  --body-heading-color: var(--folio-ink);
  --body-text-color: var(--folio-ink);
  --body-background-color: var(--folio-bg);
  --sidebar-color: var(--folio-surface);
  --feedback-color: var(--folio-tint);
  --feedback-color-1: var(--folio-tint);
  --prev-next-arrow-color: var(--folio-accent);
  --scroll-nav-marker-color: var(--folio-muted);
  --scroll-nav-select-marker-color: var(--folio-accent);
}

body .main-content h1,
body .main-content h2,
body .main-content h3 {
  font-weight: 650;
}

body .site-button {
  color: var(--folio-accent);
  font-family: inherit;
}