/* Academic homepage styles. Self-contained, al-folio inspired (Roboto + Roboto Slab). */

:root {
  --color-primary: #0076df;
  --color-text: #404040;
  --color-heading: #1a1a1a;
  --color-text-secondary: #6b6b6b;
  --color-muted: #999999;
  --color-border: #e8e8e8;
  --color-surface: #f8f9fa;
  --color-todo-bg: #fef3c7;
  --color-todo-text: #92400e;
  --font-body: 'Roboto', 'Pretendard', system-ui, -apple-system, sans-serif;
  --font-heading: 'Roboto Slab', 'Pretendard', Georgia, serif;
  --max-width: 800px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: #004a8c;
  text-decoration: none;
}

strong, b {
  font-weight: 500;
  color: var(--color-heading);
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-header__brand {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--color-heading);
}

.site-header__brand:hover {
  color: var(--color-primary);
}

.site-header__nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-header__link {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
}

.site-header__link:hover {
  color: var(--color-primary);
}

/* Main layout */
.site-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

.section {
  margin-bottom: 3rem;
}

.section__title {
  font-family: var(--font-heading);
  font-size: 1.9rem;
  font-weight: 400;
  color: var(--color-heading);
  margin-bottom: 1.1rem;
}

/* About (al-folio style: photo floated right, bio wraps around) */
.about {
  margin-bottom: 3.5rem;
}

.about__name {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-heading);
  margin-bottom: 0.2rem;
}

.about__alias {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.75rem;
}

.about__profile {
  float: right;
  width: 40%;
  max-width: 310px;
  margin: 0 0 0.75rem 1.75rem;
  text-align: center;
}

.about__profile img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
  display: block;
}

.about__location {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  margin-top: 0.6rem;
}

.about__photo-placeholder {
  width: 100%;
  aspect-ratio: 4 / 5;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--color-muted);
  padding: 0.5rem;
}

.about__bio {
  margin-bottom: 1rem;
}

.about__affiliations {
  list-style: none;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.about__affiliations li {
  padding-left: 1rem;
  position: relative;
}

.about__affiliations li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-muted);
}

.about__interests {
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.about::after {
  content: '';
  display: block;
  clear: both;
}

/* Social icon row (al-folio style: subtle icons under the name) */
.social-icons {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  font-size: 1.4rem;
  line-height: 1;
}

.social-icons__link {
  color: var(--color-text-secondary);
  transition: color 0.15s ease;
}

.social-icons__link:hover {
  color: var(--color-primary);
}

.cv-social {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

/* News */
.news__list {
  list-style: none;
}

.news__item {
  display: flex;
  gap: 1.5rem;
  padding: 0.4rem 0;
}

.news__date {
  flex: 0 0 90px;
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--color-heading);
}

.news__text {
  font-size: 0.95rem;
}

/* Publications */
.pub {
  margin-bottom: 1.5rem;
}

.pub__title {
  font-weight: 500;
  font-size: 1rem;
  color: var(--color-heading);
  margin-bottom: 0.1rem;
}

.pub__authors {
  font-size: 0.93rem;
  color: var(--color-text-secondary);
}

.pub__authors strong {
  font-weight: 500;
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-color: var(--color-border);
  text-underline-offset: 3px;
}

.pub__venue {
  font-size: 0.92rem;
  font-style: italic;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.pub__note {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
}

.pub__links {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pub__link {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 0.12rem 0.55rem;
  border: 1px solid var(--color-primary);
  border-radius: 3px;
  color: var(--color-primary);
  text-transform: uppercase;
}

.pub__link:hover {
  background: var(--color-primary);
  color: #ffffff;
}

/* Selected projects (compact list on the homepage) */
.proj {
  margin-bottom: 1.6rem;
}

.proj__meta {
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.proj__title {
  font-weight: 500;
  font-size: 1rem;
  color: var(--color-heading);
  margin: 0.1rem 0;
}

.proj__desc {
  font-size: 0.93rem;
  margin-bottom: 0.45rem;
}

.proj__note {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* Talks */
.talk {
  margin-bottom: 1.2rem;
}

.talk__type {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.talk__title {
  font-weight: 500;
  font-size: 1rem;
  color: var(--color-heading);
  margin: 0.1rem 0;
}

.talk__venue {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
}

/* Entry tables (education / experience, al-folio borderless table style) */
.entries {
  width: 100%;
  border-collapse: collapse;
}

.entries td {
  vertical-align: top;
  padding: 0.45rem 0;
}

.entries__date {
  width: 165px;
  padding-right: 1.25rem;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.entries__org {
  font-weight: 500;
  color: var(--color-heading);
}

.entries__role {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.entries__desc {
  font-size: 0.92rem;
  margin-top: 0.3rem;
}

.entries__desc ul {
  margin-left: 1.1rem;
}

.entries__desc li {
  margin-bottom: 0.2rem;
}

/* CV page */
.cv-actions {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 1.5rem;
}

.cv-actions__btn {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.45rem 1rem;
  border: 1px solid var(--color-primary);
  border-radius: 4px;
  background: #ffffff;
  color: var(--color-primary);
  cursor: pointer;
}

.cv-actions__btn:hover {
  background: var(--color-primary);
  color: #ffffff;
}

.cv-header {
  margin-bottom: 2.5rem;
}

.cv-header__name {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 400;
  line-height: 1.25;
  color: var(--color-heading);
}

.cv-header__alias {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.6rem;
}

.cv-header__contact {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
}

/* TODO badge: visible marker for placeholder content */
.todo {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  background: var(--color-todo-bg);
  color: var(--color-todo-text);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Responsive */
@media (max-width: 640px) {
  .about__profile {
    float: none;
    margin: 0 auto 1.5rem;
    width: 60%;
  }

  .news__item {
    flex-direction: column;
    gap: 0;
  }

  .news__date {
    flex: none;
  }

  .entries,
  .entries tbody,
  .entries tr,
  .entries td {
    display: block;
    width: 100%;
  }

  .entries__date {
    padding: 0.45rem 0 0;
  }

  .entries td:last-child {
    padding-top: 0;
    border-bottom: 1px solid var(--color-border);
  }
}

/* Project detail pages (projects/*.html, reusing the academic look) */
.detail-header {
  margin-bottom: 1.75rem;
}

.detail-header__back {
  display: inline-block;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.detail-header__title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.25;
  color: var(--color-heading);
  margin-bottom: 0.6rem;
}

.detail-header__meta {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.9rem;
}

.detail-header__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.detail-header__tag {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 0.12rem 0.55rem;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-text-secondary);
}

.detail-note {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border-left: 3px solid var(--color-border);
  border-radius: 0 4px 4px 0;
  padding: 0.8rem 1rem;
  margin-bottom: 2rem;
}

.detail-toc {
  font-size: 0.92rem;
  margin-bottom: 2.5rem;
}

.detail-toc ol {
  margin: 0.3rem 0 0 1.25rem;
}

.detail-content h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--color-heading);
  margin: 2.75rem 0 0.9rem;
}

.detail-content h3 {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-heading);
  margin: 2rem 0 0.6rem;
}

.detail-content h4 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-heading);
  margin: 1.5rem 0 0.5rem;
}

.detail-content p {
  font-size: 0.95rem;
  margin-bottom: 0.9rem;
}

.detail-content ul,
.detail-content ol {
  font-size: 0.95rem;
  margin: 0 0 1rem 1.25rem;
}

.detail-content li {
  margin-bottom: 0.3rem;
}

.detail-content .good {
  color: #188038;
}

.detail-content .bad {
  color: #c5221f;
}

.detail-stage {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: 0.1rem;
}

.detail-highlight {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}

.detail-highlight__title {
  font-weight: 500;
  color: var(--color-heading);
  margin-bottom: 0.5rem;
}

.detail-content .detail-highlight ul {
  margin: 0 0 0 1.1rem;
}

.detail-scroll {
  overflow-x: auto;
  margin-bottom: 1.25rem;
}

.detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  line-height: 1.45;
}

.detail-table th {
  text-align: left;
  font-weight: 500;
  color: var(--color-heading);
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  padding: 0.45rem 0.6rem;
}

.detail-table td {
  border-bottom: 1px solid var(--color-border);
  padding: 0.4rem 0.6rem;
  vertical-align: top;
}

.detail-table .num {
  text-align: center;
  white-space: nowrap;
}

.detail-table__total td {
  border-top: 2px solid var(--color-border);
  background: var(--color-surface);
}

.detail-figure {
  margin: 1.25rem 0 1.75rem;
}

.detail-figure img,
.detail-gallery img {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  display: block;
}

.detail-figure figcaption {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
  text-align: center;
}

.detail-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.25rem 0 1.75rem;
}

.detail-gallery figure {
  margin: 0;
}

.detail-gallery figcaption {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  margin-top: 0.4rem;
}

@media (max-width: 640px) {
  .detail-gallery {
    grid-template-columns: 1fr;
  }
}

/* Print: used by cv.html to produce the CV PDF via the browser print dialog */
@media print {
  @page {
    size: A4;
    margin: 18mm 16mm;
  }

  body {
    font-size: 10pt;
    color: #000000;
  }

  .site-header,
  .site-footer,
  .cv-actions,
  .cv-social,
  .todo--screen-only {
    display: none;
  }

  .site-main {
    max-width: none;
    padding: 0;
  }

  a {
    color: #000000;
  }

  .section {
    margin-bottom: 1.4rem;
  }

  .cv-header {
    margin-bottom: 1.4rem;
  }

  .pub,
  .talk,
  .entries tr {
    break-inside: avoid;
  }

  .todo {
    background: none;
    color: #92400e;
    border: 1px solid #92400e;
  }
}