:root {
  --navy: #d23a4f;
  --navy-deep: #34393f;
  --ink: #2f3133;
  --muted: #626a73;
  --paper: #f5f6f7;
  --surface: #ffffff;
  --line: #dde1e5;
  --accent: #d23a4f;
  --accent-dark: #b82c3e;
  --accent-light: #fdf0f2;
  --focus: #d23a4f;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0, 0, 0, .07);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-family: Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--paper);
}

button,
input,
select { font: inherit; }

button,
a { -webkit-tap-highlight-color: transparent; }

a { color: inherit; }

h1,
h2,
h3,
p { margin-top: 0; }

h1 {
  max-width: 900px;
  margin-bottom: .75rem;
  font-size: clamp(2.25rem, 4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -.035em;
  overflow-wrap: anywhere;
}

h2 {
  margin-bottom: .35rem;
  font-size: clamp(1.45rem, 3vw, 2rem);
  letter-spacing: -.025em;
}

h3 {
  margin-bottom: .45rem;
  font-size: 1.05rem;
}

.page-shell {
  width: min(1180px, calc(100% - 2rem));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: .75rem;
  left: .75rem;
  padding: .65rem 1rem;
  color: var(--surface);
  background: var(--ink);
  border-radius: 8px;
  transform: translateY(-180%);
}

.skip-link:focus { transform: none; }

.institutional-header {
  color: var(--ink);
  background: var(--surface);
  border-bottom: 1px solid #eceef0;
}

.institutional-header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.institutional-logos {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-divider {
  width: 1px;
  height: 44px;
  background: var(--line);
}

.uni-vienna-logo {
  display: block;
  width: 145px;
  height: auto;
}

.tu-graz-logo {
  display: block;
  width: auto;
  height: 49px;
}


.app-intro {
  background: #f1f2f3;
  border-bottom: 1px solid #eceef0;
}

.hero {
  position: relative;
  padding-block: clamp(2rem, 5vw, 3.25rem);
}

.hero-main { min-width: 0; }

.eyebrow {
  margin-bottom: .55rem;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero-copy {
  max-width: 680px;
  margin-bottom: 1.35rem;
  color: var(--muted);
  font-size: clamp(.95rem, 2vw, 1.08rem);
  line-height: 1.55;
}

.section-nav {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
}

.section-nav a {
  min-width: 92px;
  padding: .62rem .9rem;
  color: var(--accent-dark);
  font-size: .85rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 7px;
}

.section-nav a:hover { color: #fff; background: var(--accent); border-color: var(--accent); }

.video-toggle {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  min-height: 44px;
  padding: .65rem .9rem;
  color: var(--accent-dark);
  background: var(--surface);
  border: 1.5px solid var(--accent);
  border-radius: 7px;
  cursor: pointer;
}

.video-toggle:hover { color: #fff; background: var(--accent); }
.play-icon { color: var(--accent); font-size: .75rem; }
.video-toggle:hover .play-icon { color: #fff; }

.video-container {
  max-width: 620px;
  margin-top: 1.25rem;
  overflow: hidden;
  background: #000;
  border-radius: var(--radius);
  box-shadow: 0 18px 45px rgba(0, 0, 0, .3);
}

.video-container video {
  display: block;
  width: 100%;
  height: auto;
}

main { padding-block: 2rem 3.5rem; }

.about-panel,
.search-panel,
.results-panel,
.people-panel {
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.about-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .9fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  margin-bottom: 1.5rem;
}

.about-copy p:not(.eyebrow) {
  max-width: 680px;
  color: var(--muted);
  line-height: 1.65;
}

.about-copy p:last-child { margin-bottom: 0; }
.about-media { min-width: 0; }

.results-panel { margin-top: 1.5rem; }

.people-panel { margin-top: 1.5rem; }

.people-list {
  margin: .45rem 0 1.25rem;
  padding-left: 1.25rem;
}

.people-list li { margin-bottom: .3rem; }

#peopleDialog .dialog-body p {
  max-width: 760px;
  color: var(--muted);
  line-height: 1.6;
}

.section-heading,
.results-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--line);
}

.section-heading > p {
  max-width: 480px;
  margin-bottom: .2rem;
  color: var(--muted);
  line-height: 1.5;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  padding: 1.25rem 0 0;
  border: 0;
  margin: 0;
}

.field {
  grid-column: span 3;
  min-width: 0;
}

.wide-field { grid-column: span 4; }
.range-field { grid-column: span 2; }
.addenda-field { grid-column: span 8; }

.field label {
  display: block;
  color: #334556;
  font-size: .82rem;
  font-weight: 700;
}

.field-label-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: .38rem;
  min-height: 26px;
  margin-bottom: .35rem;
}

.help-button {
  display: inline-grid;
  flex: 0 0 auto;
  width: 19px;
  height: 19px;
  padding: 0;
  place-items: center;
  color: var(--accent-dark);
  font-size: .72rem;
  font-weight: 700;
  line-height: 1;
  background: #fff;
  border: 1px solid #9fafbc;
  border-radius: 50%;
  cursor: help;
}

.help-button:hover,
.help-button:focus-visible {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.help-tooltip {
  position: absolute;
  z-index: 8;
  top: calc(100% + .35rem);
  left: 0;
  width: min(280px, calc(100vw - 3rem));
  padding: .55rem .65rem;
  color: #fff;
  font-size: .76rem;
  font-weight: 400;
  line-height: 1.4;
  background: var(--navy-deep);
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(3, 40, 68, .22);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-3px);
  transition: opacity .12s ease, transform .12s ease;
}

.help-button:hover + .help-tooltip,
.help-button:focus + .help-tooltip {
  opacity: 1;
  transform: translateY(0);
}

.field input,
.field select {
  width: 100%;
  min-height: 44px;
  padding: .65rem .75rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid #aebbc7;
  border-radius: 8px;
}

.field input::placeholder { color: #778694; }

:focus-visible {
  outline: 3px solid rgba(46, 144, 209, .4);
  outline-offset: 2px;
}

.field input:focus,
.field select:focus {
  border-color: var(--focus);
  outline: 3px solid rgba(210, 58, 79, .14);
}

.pill-box {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-top: .6rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  max-width: 100%;
  padding: .35rem .55rem .35rem .7rem;
  color: var(--accent-dark);
  background: var(--accent-light);
  border: 1px solid #edb4bd;
  border-radius: 999px;
  font-size: .82rem;
}

.pill button {
  display: grid;
  width: 24px;
  height: 24px;
  padding: 0;
  place-items: center;
  color: #7c2d12;
  background: transparent;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
}

.pill button:hover { background: rgba(124, 45, 18, .1); }

.form-actions {
  display: flex;
  gap: .75rem;
  margin-top: 1.25rem;
}

.button {
  min-height: 44px;
  padding: .65rem 1rem;
  font-weight: 700;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
}

.button:disabled {
  opacity: .58;
  cursor: wait;
}

.button-primary {
  color: #fff;
  background: var(--navy);
}

.button-primary:hover:not(:disabled) { background: var(--accent-dark); }

.button-secondary {
  color: var(--accent-dark);
  background: #fff;
  border-color: #9fafbc;
}

.button-secondary:hover:not(:disabled) { background: #eef4f7; }
.button-secondary:hover:not(:disabled) { background: var(--accent-light); border-color: var(--accent); }

.form-error,
.load-error {
  margin: 1rem 0 0;
  padding: .75rem 1rem;
  color: #8a1c1c;
  background: #fff0f0;
  border: 1px solid #efb2b2;
  border-radius: 8px;
}

.data-note {
  margin-top: 1.35rem;
  color: var(--muted);
  font-size: .85rem;
}

.data-note summary {
  width: fit-content;
  color: var(--navy);
  font-weight: 700;
  cursor: pointer;
}

.data-note p {
  max-width: 850px;
  margin: .7rem 0 0;
  line-height: 1.55;
}

.results-heading { margin-bottom: 1rem; }
.results-heading .eyebrow { margin-bottom: 0; }
.result-status { margin: 0; color: var(--muted); font-size: .88rem; }

.table-scroll {
  max-height: 820px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}

#resultsTable {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: .86rem;
}

#resultsTable th,
#resultsTable td {
  padding: .8rem .85rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

#resultsTable th {
  position: sticky;
  z-index: 2;
  top: 0;
  color: #fff;
  background: var(--accent);
  font-size: .76rem;
  letter-spacing: .03em;
  text-transform: uppercase;
}

#resultsTable td:first-child,
#resultsTable td:nth-child(6),
#resultsTable td:nth-child(8) { white-space: nowrap; }

#resultsTable td:nth-child(2),
#resultsTable td:nth-child(4) {
  min-width: 150px;
  font-family: Helvetica, Arial, sans-serif;
  font-size: .92rem;
}

#resultsTable td:nth-child(5),
#resultsTable td:nth-child(7) {
  min-width: 260px;
  line-height: 1.45;
}

#resultsTable tbody tr:nth-child(even) { background: #f7f9fb; }
#resultsTable tbody tr:hover { background: var(--accent-light); }

.details-link {
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.doi-link {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.chemical {
  white-space: normal;
  line-height: 1.5;
}

.chemical sub,
.chemical sup {
  position: relative;
  font-size: .72em;
  line-height: 0;
}

.chemical sub { vertical-align: -.32em; }
.chemical sup { vertical-align: .52em; }

.empty-state {
  padding: 2.5rem 1rem !important;
  color: var(--muted);
  text-align: center !important;
}

.load-more-row {
  display: flex;
  justify-content: center;
  padding-top: 1rem;
}

.site-footer {
  padding: 2.25rem 0;
  color: #d9e5ed;
  background: var(--navy-deep);
  border-top: 4px solid var(--accent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
}

.footer-grid p {
  margin: 0;
  font-size: .83rem;
  line-height: 1.55;
}

.footer-grid strong { color: #fff; }
.footer-grid a { color: #ffc46b; }
.footer-meta { white-space: nowrap; }

dialog[open] {
  display: flex;
  flex-direction: column;
  width: min(760px, calc(100% - 1.5rem));
  max-height: min(880px, calc(100vh - 2rem));
  padding: 0;
  overflow: hidden;
  color: var(--ink);
  background: #fff;
  border: 0;
  border-radius: var(--radius);
  box-shadow: 0 28px 90px rgba(0, 0, 0, .35);
}

dialog::backdrop {
  background: rgba(2, 24, 40, .72);
  backdrop-filter: blur(2px);
}

.dialog-header {
  display: flex;
  flex-shrink: 0;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.3rem 1.5rem 1rem;
  border-bottom: 1px solid var(--line);
}

.dialog-scroll {
  min-height: 0;
  overflow-y: auto;
}

.dialog-header h2 { margin: 0; }

.icon-button {
  display: grid;
  width: 44px;
  height: 44px;
  padding: 0;
  place-items: center;
  color: var(--ink);
  background: #f2f5f7;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 1.65rem;
  line-height: 1;
  cursor: pointer;
}

.dialog-body {
  max-height: 46vh;
  padding: 1.25rem 1.5rem;
  overflow-y: auto;
}

.details-content { padding: 1.25rem 1.5rem; }

.dialog-body p { color: var(--muted); line-height: 1.6; }
.dialog-body p:last-of-type { margin-bottom: 1.1rem; }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .8rem;
}

.detail-card {
  padding: .85rem 1rem;
  background: #f5f8fa;
  border: 1px solid var(--line);
  border-radius: 9px;
}

.detail-card.wide { grid-column: 1 / -1; }
.detail-label {
  display: block;
  margin-bottom: .35rem;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.detail-card p,
.detail-card ul { margin: 0; }
.detail-card ul { padding-left: 1.15rem; }
.detail-card li + li { margin-top: .35rem; }

.step-list {
  margin: .75rem 0 0;
  padding-left: 1.3rem;
}
.step-list li + li { margin-top: .55rem; }

.generation-panel {
  padding: 1.15rem 1.5rem 1.4rem;
  background: #f5f6f7;
  border-top: 1px solid var(--line);
}

.generation-panel > p {
  margin-bottom: .9rem;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.45;
}

.generation-controls {
  display: flex;
  gap: .75rem;
  align-items: end;
}

.generation-controls .field { flex: 1; }
.generated-output {
  margin-top: 1rem;
  padding: 1rem;
  white-space: pre-wrap;
  line-height: 1.55;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.generated-output.error {
  color: #8a1c1c;
  background: #fff4f4;
  border-color: #efb2b2;
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-right: .45rem;
  vertical-align: -.15em;
  border: 2px solid rgba(255, 255, 255, .45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .75s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 900px) {
  .about-panel { grid-template-columns: 1fr; }
  .field { grid-column: span 6; }
  .wide-field { grid-column: span 6; }
  .range-field { grid-column: span 3; }
  .addenda-field { grid-column: span 6; }
  .footer-grid { grid-template-columns: 1fr auto; }
}

@media (max-width: 680px) {
  .page-shell { width: min(calc(100% - 1rem), 1180px); }
  .institutional-header-inner { min-height: 62px; gap: .5rem; flex-wrap: wrap; row-gap: .5rem; padding-block: .6rem; }
  .institutional-logos { gap: .6rem; }
  .tu-graz-logo { height: 32px; }
  .logo-divider { height: 28px; }
  .uni-vienna-logo { width: 96px; }
  .section-nav a { min-width: 0; padding: .4rem .65rem; font-size: .78rem; }
  .hero { padding-block: 1.7rem 1.9rem; }
  h1 { font-size: clamp(2rem, 10vw, 2.6rem); }
  main { padding-block: 1rem 2rem; }
  .search-panel,
  .results-panel,
  .about-panel,
  .people-panel { padding: 1rem; border-radius: 10px; }
  .section-heading,
  .results-heading { display: block; }
  .section-heading > p { margin-top: .8rem; }
  .result-status { margin-top: .45rem; }
  .field,
  .wide-field,
  .range-field,
  .addenda-field { grid-column: 1 / -1; }
  .filter-grid { gap: .8rem; }
  .form-actions,
  .generation-controls { align-items: stretch; flex-direction: column; }
  .form-actions .button,
  .generation-controls .button { width: 100%; }

  .table-scroll {
    max-height: none;
    overflow: visible;
    border: 0;
  }

  #resultsTable,
  #resultsTable tbody,
  #resultsTable tr,
  #resultsTable td {
    display: block;
    width: 100%;
  }

  #resultsTable thead { display: none; }

  #resultsTable tbody {
    display: grid;
    gap: .75rem;
  }

  #resultsTable tr {
    padding: .8rem .9rem;
    background: #fff !important;
    border: 1px solid var(--line);
    border-radius: 9px;
    box-shadow: 0 4px 14px rgba(3, 40, 68, .06);
  }

  #resultsTable td {
    display: grid;
    grid-template-columns: minmax(105px, 34%) 1fr;
    gap: .65rem;
    min-width: 0 !important;
    padding: .48rem 0;
    border: 0;
    overflow-wrap: anywhere;
  }

  #resultsTable td::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: .69rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
  }

  #resultsTable td:first-child {
    padding-bottom: .7rem;
    border-bottom: 1px solid var(--line);
  }

  .footer-grid,
  .detail-grid,
  .people-grid { grid-template-columns: 1fr; }
  .footer-grid { gap: 1.2rem; }
  .detail-card.wide { grid-column: auto; }
  dialog { max-height: calc(100vh - 1rem); }
  .dialog-body { max-height: 42vh; }
  .details-content { padding-inline: 1rem; }
  .dialog-header,
  .generation-panel { padding-inline: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}