/* =========================================================
   Site-wide custom styles.
   Single source of truth: previously duplicated (with drift)
   across index.md, _pages/research.md and publications.md.

   Design tokens below give Home, Research and Publications one
   shared palette instead of three independently invented ones
   (and recolor the theme's own .btn--* classes so CV/Teaching
   buttons match too). Components reference the tokens; redefine
   a token once and everything using it updates together.
   ========================================================= */

:root {
  /* Brand accent - home buttons, accordion, year tiles, .btn--primary */
  --cv-primary: #3454d1;
  --cv-primary-dark: #24399b;
  --cv-primary-tint: #eef2ff;
  --cv-primary-border: #cdd8ff;

  /* Publications button row - one family, distinct lightness per action */
  --cv-info: #1f8ecb;
  --cv-success: #1f9d6b;
  --cv-warning: #c98a12;
  --cv-secondary: #5b6472;
  --cv-dark: #262a33;

  --cv-text: #1c1f26;
  --cv-text-muted: #666666;
  --cv-surface: #ffffff;
  --cv-surface-tint: #f7f8fc;
  --cv-border: #e3e6ef;
}

body.dark-mode {
  --cv-primary: #7c93ff;
  --cv-primary-dark: #9fb0ff;
  --cv-primary-tint: #1b2340;
  --cv-primary-border: #33407a;

  --cv-info: #5fb3e8;
  --cv-success: #4cc993;
  --cv-warning: #e0b357;
  --cv-secondary: #a7afc2;
  --cv-dark: #c9ccd6;

  --cv-text: #eeeeee;
  --cv-text-muted: #b7bdca;
  --cv-surface: #181b22;
  --cv-surface-tint: #11131a;
  --cv-border: #2b2f3a;
}

/* ---------- Dark mode toggle (button injected by _includes/head/custom.html) ---------- */
#darkToggle {
  position: fixed;
  top: 20px;
  right: 25px;
  background: #e6e6e6;
  border: none;
  padding: 10px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
  transition: 0.3s;
  z-index: 9999;
}

#darkToggle:hover {
  transform: translateY(-2px);
  background: #d4d4d4;
}

body.dark-mode,
body.dark-mode .page,
body.dark-mode .page__content,
body.dark-mode .masthead,
body.dark-mode .site-header,
body.dark-mode .site-footer,
body.dark-mode .profile-wrapper,
body.dark-mode .profile-text {
  background-color: var(--cv-surface-tint) !important;
  color: var(--cv-text) !important;
}

body.dark-mode a {
  color: var(--cv-primary) !important;
}

body.dark-mode .pub-card,
body.dark-mode .dropdown-menu,
body.dark-mode .bib-block,
body.dark-mode .year-button,
body.dark-mode .more-sections-box {
  background-color: var(--cv-surface) !important;
  color: var(--cv-text) !important;
}

body.dark-mode .acc-content {
  background-color: var(--cv-surface) !important;
  color: var(--cv-text) !important;
}

body.dark-mode .pub-img {
  background-color: var(--cv-surface) !important;
}

/* ---------- Home page profile layout ---------- */
.profile-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 20px;
}

.profile-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: start;
}

.profile-photo img {
  width: 420px;
  height: 520px;
  object-fit: contain;
  border-radius: 14px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.25);
  display: block;
}

.profile-text .name {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 8px;
}

.profile-text .subtitle {
  font-size: 20px;
  color: var(--cv-text-muted);
  margin-bottom: 20px;
}

.profile-text p {
  font-size: 25px;
  line-height: 1.5;
  text-align: left;
}

.social-buttons {
  margin-top: 25px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.social-buttons a {
  padding: 9px 14px;
  background: var(--cv-primary-tint);
  border-radius: 8px;
  border: 1px solid var(--cv-primary-border);
  text-decoration: none;
  font-weight: 600;
  color: var(--cv-primary-dark);
  transition: 0.2s;
}

.social-buttons a:hover {
  transform: translateY(-2px);
  background: var(--cv-primary-border);
}

body.dark-mode .social-buttons a {
  background: var(--cv-primary-tint) !important;
  border-color: var(--cv-primary-border) !important;
  color: var(--cv-primary) !important;
}

@media (max-width: 991px) {
  .profile-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .profile-photo {
    margin-top: 0;
    justify-self: center;
  }

  .profile-photo img {
    width: 90%;
    height: auto;
    max-width: 360px;
  }

  .profile-text .name {
    font-size: 34px;
    text-align: center;
  }

  .profile-text .subtitle,
  .profile-text p,
  .profile-text ul {
    text-align: center;
  }

  .social-buttons {
    justify-content: center;
  }
}

/* ---------- Accordion (used on /research/) ---------- */
.accordion {
  margin-top: 25px;
}

.acc-btn {
  width: 100%;
  background: var(--cv-primary-tint);
  border: 1px solid var(--cv-primary-border);
  padding: 12px 18px;
  text-align: left;
  border-radius: 8px;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  transition: 0.2s;
  color: var(--cv-text);
}

.acc-btn:hover {
  background: var(--cv-primary-border);
}

.acc-content {
  display: none;
  padding: 15px 20px;
  background: var(--cv-surface-tint);
  border-left: 4px solid var(--cv-primary);
  border-radius: 6px;
  margin-bottom: 15px;
  font-size: 15px;
  line-height: 1.45;
}

@media (max-width: 768px) {
  .acc-item {
    width: 100% !important;
    box-sizing: border-box;
  }

  .acc-btn {
    font-size: 16px !important;
    padding: 14px 16px !important;
    text-align: left;
    white-space: normal;
  }

  .acc-content {
    padding: 16px !important;
    font-size: 15px !important;
    line-height: 1.6;
    word-wrap: break-word;
  }

  .acc-btn::after {
    right: 16px !important;
  }
}

/* ---------- Publications page (/publications/) ---------- */
.pub-card {
  display: flex;
  gap: 20px;
  padding: 18px;
  margin-bottom: 28px;
  background: var(--cv-surface);
  border-radius: 10px;
  box-shadow: 0px 8px 22px rgba(0, 0, 0, 0.15);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.pub-card:hover {
  transform: translateY(-3px);
  box-shadow: 0px 12px 26px rgba(0, 0, 0, 0.22);
}

.pub-img {
  width: 260px;
  height: 195px;
  object-fit: contain;
  object-position: center;
  background: #f8f8f8;
  border-radius: 8px;
  flex-shrink: 0;
  padding: 4px;
  box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.1);
}

.pub-info {
  flex: 1;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

/* One shared shape for every pub-card action button (ABS, Working Papers,
   Published, Media, BIB, Package/Codes): only the fill color differs. */
.btn-row .btn {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  color: #fff;
  border: none;
  transition: filter 0.15s ease, transform 0.15s ease;
}

.btn-row .btn:hover {
  filter: brightness(0.92);
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--cv-primary);
}

.btn--info {
  background: var(--cv-info);
}

.btn--success {
  background: var(--cv-success);
}

.btn--warning {
  background: var(--cv-warning);
}

.btn--secondary {
  background: var(--cv-secondary);
}

.btn--dark {
  background: var(--cv-dark);
}

.dropdown-menu {
  display: none;
  position: absolute;
  background: var(--cv-surface);
  border: 1px solid var(--cv-border);
  padding: 12px;
  border-radius: 6px;
  box-shadow: 0px 8px 22px rgba(0, 0, 0, 0.25);
  z-index: 2000;
}

.dropdown-menu.show {
  display: block;
}

.dropdown-container {
  position: relative;
}

/* Allow card shadows to escape the theme's content wrapper */
.page__content {
  overflow: visible !important;
}

.pub-info pre {
  white-space: pre-wrap !important;
  word-break: break-word !important;
  overflow-wrap: break-word !important;
  max-width: 100% !important;
}

.pub-info pre code {
  font-size: 12px !important;
  line-height: 1.25 !important;
  white-space: pre-wrap !important;
  word-break: break-word !important;
  overflow-wrap: break-word !important;
  max-width: 100% !important;
}

.abstract-block {
  font-size: 13px;
  line-height: 1.25;
  margin-top: 8px;
  margin-bottom: 14px;
  padding-left: 0px;
  max-width: 100% !important;
  white-space: pre-wrap !important;
  word-break: break-word !important;
  overflow-wrap: break-word !important;
}

.bib-block {
  font-size: 13px;
  line-height: 1.45;
  margin-top: 8px;
  margin-bottom: 14px;
  padding: 10px 12px;
  max-width: 95%;
  background: var(--cv-surface-tint);
  border-radius: 6px;
  box-shadow: 0px 2px 6px rgba(0, 0, 0, 0.08);
}

.bib-block pre code {
  font-size: 12px !important;
  white-space: pre-wrap !important;
  word-break: break-word !important;
}

.year-button {
  width: 100%;
  background: var(--cv-surface-tint);
  border: 1px solid var(--cv-border);
  padding: 12px 18px;
  border-radius: 8px;
  font-size: 20px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 25px;
  margin-bottom: 10px;
  text-align: left;
  transition: background 0.2s ease;
  color: var(--cv-text);
}

.year-button:hover {
  background: var(--cv-primary-tint);
}

.year-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 25px 0 20px 0;
}

.year-tile {
  min-width: 90px;
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  color: var(--cv-primary-dark);
  background: var(--cv-primary-tint);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.year-tile:hover {
  transform: translateY(-2px);
  box-shadow: 0 7px 16px rgba(0, 0, 0, 0.18);
}

body.dark-mode .year-tile {
  background: var(--cv-primary-tint) !important;
  color: var(--cv-primary) !important;
}

.year-block {
  margin-bottom: 25px;
}

.toggle-all-button {
  display: inline-block;
  padding: 10px 18px;
  font-size: 16px;
  font-weight: 600;
  background: var(--cv-primary-border);
  border: 1px solid var(--cv-primary);
  border-radius: 8px;
  cursor: pointer;
  margin-bottom: 20px;
  transition: background 0.2s ease, transform 0.15s ease;
  color: var(--cv-primary-dark);
}

.toggle-all-button:hover {
  background: var(--cv-primary);
  color: #fff;
  transform: translateY(-2px);
}

.more-sections-box {
  background: var(--cv-surface-tint);
  padding: 15px 20px;
  border-radius: 10px;
  box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.05);
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* Brief highlight when a /research/ "Related papers" link deep-links here */
.paper-highlight {
  animation: paper-highlight-flash 2.2s ease;
}

@keyframes paper-highlight-flash {
  0% {
    box-shadow: 0 0 0 3px var(--cv-primary), 0px 8px 22px rgba(0, 0, 0, 0.15);
  }
  100% {
    box-shadow: 0px 8px 22px rgba(0, 0, 0, 0.15);
  }
}