/* === IDAN FRANCO — Personal site (three-column tab layout) === */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;0,6..72,700;0,6..72,800;1,6..72,400&display=swap');

:root {
  --font-main: 'Newsreader', 'Iowan Old Style', 'Times New Roman', serif;
  --font-name: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --color-text: #111111;
  --color-text-muted: #555555;
  --color-bg: #ffffff;
  --color-border: #e5e5e5;
  --color-border-strong: #b8b8b8;
  --color-link: #1a3a8f;
  --color-link-hover: #4a6ac0;

  --body-width: 1280px;
  --left-col-width: 240px;
  --photo-width: min(340px, 28vw);
  --col-gap: 3rem;
  --content-side-offset: max(2rem, calc((100vw - var(--body-width)) / 2));
  --top-offset: 3rem;
  --middle-padding: 2rem;
}

/* === Base === */
html, body {
  margin: 0 !important;
  padding: 0 !important;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative !important;
  min-height: 100vh;
}

/* Force any Quarto containers to NOT be positioning ancestors */
main,
main.content,
main#quarto-document-content,
#quarto-content,
.page-columns,
.page-rows,
.page-layout-article,
.column-body,
.column-page,
.column-page-inset,
.column-page-inset-left,
.column-page-inset-right {
  position: static !important;
}

/* === Hide navbar entirely === */
.navbar,
#quarto-header,
header.navbar,
.navbar-nav,
.navbar-toggler,
.navbar-collapse,
.aa-DetachedSearchButton,
.quarto-search,
.navbar .search {
  display: none !important;
}

/* Hide auto-generated title block */
#title-block-header,
header.quarto-title-block,
.quarto-title-block {
  display: none !important;
}

/* === Override Quarto's grid so custom positioning works === */
#quarto-content,
.page-columns,
.page-rows,
.page-layout-article,
.column-body,
.column-page,
.column-page-inset,
.column-page-inset-left,
.column-page-inset-right {
  display: block !important;
  max-width: none !important;
  width: auto !important;
  padding: 0 !important;
  margin: 0 !important;
  grid-template-columns: none !important;
  grid-template-rows: none !important;
}

/* === LEFT COLUMN === */
.left-col {
  position: fixed;
  top: var(--top-offset);
  left: var(--content-side-offset);
  width: var(--left-col-width);
  z-index: 5;
}

.site-name {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: transparent;
  font-family: var(--font-name);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  margin: 0 0 2rem 0;
  transition: color 0.15s ease;
}

.site-name:hover,
.site-name:focus-visible {
  color: var(--color-link);
  outline: none;
}

.tab-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.tab-btn {
  display: block;
  width: 100%;
  padding: 0.9rem 0 0.9rem 1rem;
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-main);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  transition: color 0.15s ease;
  line-height: 1.35;
  border-top: 1px solid var(--color-border);
  outline: none;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.tab-btn:last-child {
  border-bottom: 1px solid var(--color-border);
}

.tab-btn[data-tab="book"] {
  font-style: italic;
}

.tab-btn::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--color-link);
  transition: height 0.25s ease;
}

.tab-btn:hover,
.tab-btn:focus-visible {
  color: var(--color-link);
}

.tab-btn.active {
  color: var(--color-link);
  font-weight: 600;
}

.tab-btn.active::before {
  height: 70%;
}

/* === CONTACT ME button === */
.contact-btn {
  display: inline-block;
  margin: 1.75rem 0 0 0;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--color-text-muted);
  border-radius: 999px;
  font-family: var(--font-name);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none !important;
  background: transparent;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
  letter-spacing: 0.02em;
}

.contact-btn:hover,
.contact-btn:focus-visible {
  border-color: var(--color-link);
  color: var(--color-link);
  background: rgba(26, 58, 143, 0.04);
  text-decoration: none !important;
  outline: none;
}

/* === SOCIAL ICONS (Google Scholar, ResearchGate, ORCID) === */
/* Fixed at top-right of viewport (same visual position as before) */
/* JS translates them up on scroll → they scroll off with content, like the photo */
.social-icons {
  position: fixed;
  top: 1.5rem;
  right: var(--content-side-offset);
  display: flex;
  gap: 0.75rem;
  align-items: center;
  z-index: 10;
  will-change: transform;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: var(--color-text-muted);
  font-size: 1.2rem;
  text-decoration: none !important;
  transition: color 0.15s ease;
  border-radius: 4px;
}

.social-icon:hover,
.social-icon:focus-visible {
  color: var(--color-link);
  text-decoration: none !important;
  outline: none;
}

/* === RIGHT COLUMN === */
.right-col {
  position: absolute !important;
  top: var(--top-offset);
  right: var(--content-side-offset);
  width: var(--photo-width);
}

.hero-photo {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

/* === MIDDLE COLUMN === */
main.content,
main#quarto-document-content {
  box-sizing: border-box !important;
  margin-left: calc(var(--content-side-offset) + var(--left-col-width) + var(--col-gap)) !important;
  margin-right: calc(var(--content-side-offset) + var(--photo-width) + var(--col-gap)) !important;
  max-width: 720px !important;
  width: auto !important;
  padding: 2rem var(--middle-padding) 3rem var(--middle-padding) !important;
  min-height: calc(100vh - 6rem) !important;
  margin-top: var(--top-offset) !important;
  margin-bottom: 2rem !important;
}

main.content > *:first-child,
main#quarto-document-content > *:first-child {
  margin-top: 0 !important;
}

/* === CONTENT PANELS === */
.content-panel {
  display: none;
  text-align: left;
}

.content-panel.active {
  display: block;
  animation: panelFadeIn 0.25s ease-out;
}

@keyframes panelFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.content-panel[data-panel="welcome"] {
  font-size: 1.15rem;
  line-height: 1.65;
}

/* Welcome greeting — sober academic lead: bold roman serif */
.content-panel[data-panel="welcome"] .welcome-lead {
  font-family: var(--font-main);
  font-size: 1.5rem;
  font-weight: 700;
  font-style: normal;
  color: var(--color-text);
  line-height: 1.3;
  letter-spacing: -0.005em;
  margin: 0 0 0.75rem 0;
}

.content-panel > *:first-child {
  margin-top: 0 !important;
}

.content-panel > *:last-child {
  margin-bottom: 0 !important;
}

/* === SECTION TITLE === */
.content-panel .section-title {
  font-family: var(--font-main);
  font-size: 1.85rem;
  font-weight: 600;
  text-align: center;
  color: var(--color-text);
  margin: 0 0 2rem 0;
  padding: 0 0 1rem 0;
  border-bottom: 1px solid var(--color-border);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

/* === HIGHLIGHT NOTE (recognitions, awards) === */
/* Serif font so curly apostrophes render with clearly visible curl */
.highlight-note {
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.5;
  border-left: 3px solid var(--color-link);
  background: rgba(26, 58, 143, 0.04);
  padding: 0.6rem 0.9rem !important;
  margin: 0.75rem 0 !important;
  border-radius: 0 4px 4px 0;
}

.highlight-note a {
  color: var(--color-link);
}

/* === PRESENTATION NOTE (working papers) === */
.presentation-note {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin: 0.5rem 0 0.75rem 0 !important;
  line-height: 1.5;
}

/* === ABSTRACT TOGGLE (details/summary) === */
.abstract-toggle {
  margin: 0.75rem 0 !important;
  padding: 0;
}

.abstract-toggle summary {
  cursor: pointer;
  font-family: var(--font-name);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-link);
  list-style: none;
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  background: transparent;
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
  user-select: none;
  letter-spacing: 0.02em;
}

.abstract-toggle summary::-webkit-details-marker {
  display: none;
}

.abstract-toggle summary::before {
  content: '▸';
  display: inline-block;
  margin-right: 0.5rem;
  transition: transform 0.2s ease;
  font-size: 0.85em;
  line-height: 1;
}

.abstract-toggle[open] summary::before {
  transform: rotate(90deg);
}

.abstract-toggle summary:hover,
.abstract-toggle summary:focus-visible {
  color: var(--color-link);
  border-color: var(--color-link);
  background: rgba(26, 58, 143, 0.04);
  outline: none;
}

.abstract-toggle > p {
  margin-top: 0.9rem !important;
}

.abstract-toggle > p:last-child {
  margin-bottom: 0 !important;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-main);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.3rem;
  font-weight: 600;
}

h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

p {
  margin-bottom: 1.1rem;
  color: var(--color-text);
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-link-hover);
}

.content-panel h3 a {
  color: var(--color-text);
  text-decoration: none;
}

.content-panel h3 a:hover {
  color: var(--color-link);
  text-decoration: underline;
}

.content-panel hr {
  border: none;
  border-top: 2px solid var(--color-border-strong);
  margin: 1.75rem 0;
}

.content-panel blockquote {
  border-left: 3px solid var(--color-border-strong);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--color-text-muted);
  font-style: italic;
}

/* === BACK-TO-TOP button === */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-text-muted);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease, color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
  z-index: 10;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  color: var(--color-link);
  border-color: var(--color-link);
  background: rgba(255, 255, 255, 1);
  outline: none;
}

/* === Footer hidden === */
.nav-footer,
.page-footer,
footer.footer {
  display: none !important;
}

/* ============================================================ */
/* === MOBILE (≤ 900px viewport width) — matches OLD design === */
/* ============================================================ */
@media (max-width: 900px) {
  .left-col {
    position: static !important;
    width: auto !important;
    max-width: none !important;
    left: auto !important;
    right: auto !important;
    top: auto !important;
    z-index: auto !important;
    padding: 1.5rem 1.25rem 0.75rem 1.25rem !important;
    text-align: center !important;
  }

  .site-name {
    display: block !important;
    text-align: center !important;
    font-family: var(--font-name) !important;
    font-size: 2rem !important;
    font-weight: 800 !important;
    letter-spacing: -0.03em !important;
    line-height: 1.1 !important;
    margin: 0 auto 1rem auto !important;
  }

  .tab-nav {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 0.25rem 1rem !important;
    padding: 0.75rem 0 !important;
    border-top: 1px solid var(--color-border) !important;
    border-bottom: 1px solid var(--color-border) !important;
    margin: 0 auto !important;
  }

  .tab-btn {
    display: inline-block !important;
    width: auto !important;
    padding: 0.35rem 0 !important;
    font-size: 0.9rem !important;
    font-weight: 500 !important;
    line-height: 1.3 !important;
    text-align: center !important;
    border: none !important;
    border-top: none !important;
    border-bottom: 2px solid transparent !important;
  }

  .tab-btn:last-child {
    border-bottom: 2px solid transparent !important;
  }

  .tab-btn::before {
    display: none !important;
  }

  .tab-btn.active {
    color: var(--color-link) !important;
    font-weight: 600 !important;
    border-bottom: 2px solid var(--color-link) !important;
  }

  .contact-btn {
    display: inline-block !important;
    margin: 1rem auto 0 auto !important;
    padding: 0.35rem 1rem !important;
    font-size: 0.8rem !important;
  }

  /* Mobile: icons in flow, no transform (JS respects this) */
  .social-icons {
    position: static !important;
    top: auto !important;
    right: auto !important;
    justify-content: center !important;
    margin: 1rem auto 0 auto !important;
    padding: 0 !important;
    gap: 1rem !important;
    transform: none !important;
  }

  .social-icon {
    width: 36px !important;
    height: 36px !important;
    font-size: 1.3rem !important;
  }

  /* Photo: explicit horizontal centering, plus bottom margin for gap before content */
  .right-col {
    display: block !important;
    position: static !important;
    width: 100% !important;
    max-width: 220px !important;
    left: auto !important;
    right: auto !important;
    top: auto !important;
    margin: 1.75rem auto 1.25rem auto !important;
    padding: 0 !important;
    text-align: center !important;
  }

  /* By default, hide photo on non-welcome tabs... */
  body.panel-page .right-col {
    display: none !important;
  }

  /* ...but SHOW it on book tab so the book cover appears (centered like headshot) */
  body.panel-page.book-tab .right-col {
    display: block !important;
  }

  .hero-photo {
    display: block !important;
    width: 100% !important;
    height: auto !important;
    margin: 0 auto !important;
    border-radius: 8px !important;
    aspect-ratio: auto !important;
    object-fit: unset !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1) !important;
  }

  main.content,
  main#quarto-document-content {
    box-sizing: border-box !important;
    margin: 1.75rem auto 0 auto !important;
    padding: 1rem 1.25rem 3rem 1.25rem !important;
    max-width: none !important;
    min-height: auto !important;
    width: 100% !important;
  }

  /* Section titles: left-aligned, full-width border-bottom as section divider */
  .content-panel .section-title {
    display: block !important;
    width: auto !important;
    max-width: none !important;
    font-family: var(--font-name) !important;
    font-size: 1.75rem !important;
    font-weight: 700 !important;
    text-align: left !important;
    margin: 0 0 1.5rem 0 !important;
    padding: 0 0 0.75rem 0 !important;
    border-bottom: 1px solid var(--color-border) !important;
    letter-spacing: -0.02em !important;
    line-height: 1.2 !important;
  }

  .content-panel[data-panel="welcome"] .welcome-lead {
    font-size: 1.4rem !important;
    text-align: center !important;
    margin: 0 auto 0.75rem auto !important;
  }

  .back-to-top {
    bottom: 1.25rem !important;
    right: 1.25rem !important;
    width: 40px !important;
    height: 40px !important;
  }
}