/* =========================================================
   Academic Paper Project Page — Base Stylesheet
   =========================================================
   Usage: <link rel="stylesheet" href="src/styles.css">
   Pair with index.html for a full single-page paper site.
   ========================================================= */

/* --- Color palette — Mustard Yellow ---------------------- */
:root, [data-color="mustard"] {
  --bg:           #fafaf9;
  --bg-elevated:  #ffffff;
  --text:         #1c1917;
  --muted:        #78716c;
  --subtle:       #a8a29e;
  --accent:       #b8860b;
  --accent-hover: #956c09;
  --accent-light: #d4a017;
  --accent-bg:    #fdf8e3;
  --teaser-bg:    #fefcf0;
  --border:       #e7e5e4;
  --nav-bg:       rgba(250, 250, 249, 0.92);
  --shadow-tint:  rgba(184, 134, 11, 0.1);
}

[data-theme="dark"][data-color="mustard"],
[data-theme="dark"]:not([data-color]) {
  --bg:           #0f0e09;
  --bg-elevated:  #1a1810;
  --text:         #e8e6e3;
  --muted:        #9ca3af;
  --subtle:       #64748b;
  --accent:       #e8b820;
  --accent-hover: #d4a017;
  --accent-light: #f5cc40;
  --accent-bg:    #1d180a;
  --teaser-bg:    #1d180a;
  --border:       #2a2610;
  --nav-bg:       rgba(15, 14, 9, 0.92);
  --shadow-tint:  rgba(232, 184, 32, 0.15);
}

/* --- Reset & base ---------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  padding-top: 54px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* --- Typography ------------------------------------------ */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h2 { font-size: 1.5rem; margin-bottom: 1rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

code, kbd, pre {
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 0.875em;
}

/* --- Layout ---------------------------------------------- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border);
}
section:last-child { border-bottom: none; }

/* --- Above-the-fold: hero + teaser fill one viewport ----- */
.above-fold {
  height: calc(100vh - 54px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* --- Hero / Paper header --------------------------------- */
.hero {
  padding: 2rem 0;
  text-align: center;
  border-bottom: 1px solid var(--border);
  flex: 3 1 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero .paper-title {
  max-width: 900px;
  margin: 0 auto 0.5rem;
  color: var(--text);
}

.hero .venue-badge {
  display: inline-block;
  background: var(--accent-bg);
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.25rem 0.85rem;
  margin-bottom: 0.5rem;
}

/* --- Project attribution note ----------------------------------------- */
.project-attribution {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0.35rem 0 1rem;
}
.project-attribution a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}
.project-attribution a:hover { text-decoration: underline; }

/* --- Author list ----------------------------------------- */
.authors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.15rem 0.1rem;
  margin-bottom: 0.2rem;
  font-size: 1rem;
}

.author {
  white-space: nowrap;
  color: var(--muted);
}
.author::after { content: ","; margin-right: 0.4rem; }
.author:last-child::after { content: ""; }

.author sup {
  font-size: 0.65em;
  color: var(--subtle);
  vertical-align: super;
}

/* --- Affiliations ---------------------------------------- */
.affiliations {
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

/* --- Link buttons ---------------------------------------- */
.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 0.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.1rem;
  border-radius: 0.4rem;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1.5px solid transparent;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  cursor: pointer;
  text-decoration: none !important;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg);
  text-decoration: none;
}

.btn-outline {
  background: var(--bg-elevated);
  color: var(--accent);
  border-color: transparent;
  box-shadow: inset 0 0 0 1.5px var(--border);
}
.btn-outline:hover {
  background: var(--accent-bg);
  box-shadow: inset 0 0 0 1.5px var(--accent);
  text-decoration: none;
}

.btn-dark {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.btn-dark:hover {
  background: var(--muted);
  border-color: var(--muted);
  color: var(--bg);
  text-decoration: none;
}

.btn-hf {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn-hf:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg);
  text-decoration: none;
}

.btn-explore {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn-explore:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg);
  text-decoration: none;
}

/* --- Intro / teaser figure ------------------------------- */
.teaser {
  text-align: center;
  padding: 0;
  background: var(--teaser-bg);
  border-bottom: 1px solid var(--border);
  flex: 2 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 1.75rem;
  position: relative;
}

.teaser img {
  max-width: 100%;
  border-radius: 0.5rem;
  box-shadow: 0 2px 12px var(--shadow-tint);
}

.teaser figcaption {
  margin-top: 0.9rem;
  font-size: 0.875rem;
  color: var(--muted);
  max-width: 740px;
  margin-left: auto;
  margin-right: auto;
}

.teaser-hook-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 auto 0.25rem;
  max-width: 1100px;
}

.teaser-hook-sub {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 auto 0.6rem;
  max-width: 1100px;
}


/* --- Scroll arrow ---------------------------------------- */
.scroll-arrow {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: 0 2px 10px var(--shadow-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--accent);
  transition: box-shadow 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  padding: 0;
}

.scroll-arrow:hover {
  border-color: var(--accent-light);
  box-shadow: 0 4px 16px var(--shadow-tint);
  transform: translateX(-50%) translateY(2px);
}

.scroll-arrow svg {
  width: 1rem;
  height: 1rem;
}

/* --- Stat cards ------------------------------------------ */
.stat-cards {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  padding: 1.1rem 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.35rem;
  flex: 1 1 160px;
  max-width: 220px;
  box-shadow: 0 1px 6px var(--shadow-tint);
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.stat-card:hover {
  border-color: var(--accent-light);
  box-shadow: 0 3px 14px var(--shadow-tint);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
}

.stat-aside {
  display: block;
  font-size: 0.7rem;
  color: var(--subtle);
  margin-top: 0.15rem;
}

/* --- Section labels -------------------------------------- */
.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

/* --- Abstract -------------------------------------------- */
#abstract p {
  max-width: 860px;
  font-size: 1.025rem;
}

/* --- Two-column grid ------------------------------------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: start;
}

/* --- Results table --------------------------------------- */
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.results-table th {
  background: var(--bg-elevated);
  text-align: left;
  padding: 0.6rem 0.85rem;
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  white-space: nowrap;
  color: var(--text);
}

.results-table td {
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--border);
}

.results-table tr:last-child td { border-bottom: none; }

.results-table tr.highlight { background: var(--accent-bg); font-weight: 600; }

.results-table .best { color: var(--accent); font-weight: 700; }

/* --- Figure grid ----------------------------------------- */
.figure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.figure-grid figure {
  text-align: center;
}

.figure-grid img {
  width: 100%;
  border-radius: 0.35rem;
  box-shadow: 0 1px 6px var(--shadow-tint);
}

.figure-grid figcaption {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
}

/* --- BibTeX ---------------------------------------------- */
.bibtex-wrapper {
  position: relative;
}

.bibtex-block {
  background: #1a1810;
  border: 1px solid #2a2610;
  border-radius: 0.5rem;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.7;
  white-space: pre;
  color: #e8e6e3;
}
[data-theme="dark"] .bibtex-block {
  background: #d6d2c8;
  border-color: #bfbab0;
  color: #1c1917;
}
[data-theme="dark"] .copy-btn {
  background: rgba(0, 0, 0, 0.07);
  color: #44403c;
  border-color: rgba(0, 0, 0, 0.12);
}
[data-theme="dark"] .copy-btn:hover {
  background: rgba(0, 0, 0, 0.13);
}

.copy-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.7rem;
  font-size: 0.78rem;
  font-family: inherit;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.08);
  color: #c8c5be;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0.4rem;
  cursor: pointer;
  transition: background 0.15s;
}
.copy-btn:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* --- Footer --------------------------------------------- */
footer {
  text-align: center;
  padding: 2rem 0;
  font-size: 0.8rem;
  color: var(--subtle);
  border-top: 1px solid var(--border);
}

footer a { color: var(--muted); }

/* --- Fixed nav ------------------------------------------- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 6px var(--shadow-tint);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.nav-inner {
  width: 100%;
  padding: 0 2.5rem;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--text);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.15s;
}
.nav-brand:hover,
.nav-brand:focus { color: var(--accent); text-decoration: none; outline: none; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.nav-link {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s;
  white-space: nowrap;
}
.nav-link:hover { color: var(--accent); text-decoration: none; }

.btn-sm {
  padding: 0.28rem 0.7rem;
  font-size: 0.8rem;
  border-radius: 0.35rem;
}

/* --- Theme toggle ---------------------------------------- */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  cursor: pointer;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: border-color 0.15s, color 0.15s;
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle svg { width: 14px; height: 14px; }
/* light mode: show moon; dark mode: show sun */
.icon-sun  { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* offset anchor targets so sticky nav doesn't cover them */
section[id], header[id] {
  scroll-margin-top: 62px;
}

/* --- Responsive ------------------------------------------ */
@media (max-width: 640px) {
  .hero { padding: 1.5rem 0; flex: none; }
  .above-fold { height: auto; overflow: visible; }
  .teaser { flex: none; }

  section { padding: 2.5rem 0; }
  .grid-2 { grid-template-columns: 1fr; }
  .figure-grid { grid-template-columns: 1fr; }
  .results-table { font-size: 0.8rem; }
  .results-table th, .results-table td { padding: 0.45rem 0.6rem; }
  .links { gap: 0.4rem; }
  .btn { font-size: 0.82rem; padding: 0.45rem 0.85rem; }
  .nav-links { gap: 0.75rem; }
  .nav-link { font-size: 0.8rem; }
}

/* =========================================================
   ReImageNet Content Sections
   ========================================================= */

/* Abstract */
.abstract-text {
  max-width: 860px;
  font-size: 1.025rem;
}

/* Contribution grid */
.contribution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.contribution-card {
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  padding: 1.4rem 1.5rem;
  background: var(--bg-elevated);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.contribution-card:hover {
  border-color: var(--accent-light);
  box-shadow: 0 3px 14px var(--shadow-tint);
}

.contribution-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.35rem;
  line-height: 1;
}

.contribution-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.contribution-card p {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0;
}

/* Partition bar */
.partition-tree {
  display: block;
  width: 100%;
  height: auto;
  margin: 1rem 0 0.5rem;
}

.partition-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.legend-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  vertical-align: middle;
  margin-right: 3px;
}

/* Multilabel bar chart */
.ml-chart { margin: 1rem 0 0.5rem; }

.ml-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.55rem;
}

.ml-label {
  font-size: 0.8rem;
  color: var(--muted);
  width: 230px;
  text-align: right;
  flex-shrink: 0;
}

.ml-bar-wrap {
  flex: 1;
  background: var(--bg-elevated);
  border-radius: 0.3rem;
  height: 20px;
  border: 1px solid var(--border);
}

.ml-bar {
  height: 100%;
  background: var(--border);
  border-radius: 0.3rem;
  transition: width 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 6px;
  box-sizing: border-box;
  min-width: fit-content;
}

.ml-bar.highlight { background: var(--accent); }

.ml-value {
  font-size: 0.72rem;
  font-weight: 700;
  color: rgba(0,0,0,0.75);
  white-space: nowrap;
}

.ml-bar.highlight .ml-value {
  color: white;
  text-shadow: 0 1px 2px rgba(0,0,0,0.35);
}

/* Attribute cards */
.attribute-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.attribute-card {
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  padding: 1rem 1.1rem;
  background: var(--bg-elevated);
  transition: border-color 0.15s, box-shadow 0.15s;
  cursor: pointer;
  user-select: none;
  overflow: hidden;
}

.attr-preview-img {
  display: block;
  width: calc(100% + 2.2rem);
  margin-left: -1.1rem;
  margin-right: -1.1rem;
  margin-top: -1rem;
  margin-bottom: 0.75rem;
  height: 150px;
  object-fit: contain;
  background: var(--bg);
}

.attribute-card:hover {
  border-color: var(--accent-light);
  box-shadow: 0 2px 10px var(--shadow-tint);
}

.attr-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.attr-chevron {
  flex-shrink: 0;
  color: var(--muted);
  margin-top: 0.15rem;
}

.attribute-name {
  display: block;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--accent);
}

.attr-short-def {
  font-size: 0.81rem;
  color: var(--text);
  margin: 0.35rem 0 0;
  line-height: 1.5;
}

/* expand body hidden in card — content surfaces only in the modal */
.attr-expand-body {
  display: none;
}

/* ---- modal content styles ---- */
.attr-full-def {
  font-size: 0.91rem;
  color: var(--text);
  line-height: 1.65;
  margin: 0.6rem 0 1rem;
}

.attr-img-wrap img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

.attr-img-wrap--dual {
  display: flex;
  gap: 0.5rem;
}

.attr-img-pair {
  flex: 1 1 0;
  min-width: 0;
}

.attr-img-pair img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

.attr-img-cap {
  font-size: 0.74rem;
  color: var(--muted);
  font-style: italic;
  text-align: center;
  margin: 0.3rem 0 0;
  line-height: 1.4;
}

.attr-color-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  padding: 0.85rem 0 0.25rem;
}

.attr-legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.attr-legend-dot {
  display: inline-block;
  width: 11px;
  height: 11px;
  border-radius: 2px;
  flex-shrink: 0;
}

/* Data tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-top: 1rem;
}

.data-table th {
  background: var(--bg-elevated);
  text-align: left;
  padding: 0.6rem 0.85rem;
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.data-table td {
  padding: 0.52rem 0.85rem;
  border-bottom: 1px solid var(--border);
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tr.group-header td {
  background: var(--accent-bg);
  font-style: italic;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.8rem;
  padding-top: 0.45rem;
  padding-bottom: 0.45rem;
}

/* Delta colors */
.delta-pos { color: #16a34a; font-weight: 700; }
.delta-neg { color: #dc2626; font-weight: 700; }
.up  { color: #16a34a; font-weight: 600; }
.dn  { color: #dc2626; font-weight: 600; }

/* Inline delta annotations in crop table */
.delta-note {
  font-size: 0.78em;
  color: var(--muted);
  font-weight: 400;
}
.delta-note.pos { color: #16a34a; }
.delta-note.neg { color: #dc2626; font-weight: 600; }

/* Table key / legend block */
.table-key {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.5rem;
  padding: 0.55rem 0.9rem;
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 0.4rem 0.4rem 0;
  font-size: 0.79rem;
  color: var(--muted);
  margin-bottom: 0.65rem;
  line-height: 1.5;
}

.table-key strong {
  color: var(--text);
  font-weight: 600;
}

.table-key--2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.table-key--2col > div {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.table-key--2col > div:first-child {
  padding-right: 2rem;
  border-right: 1px solid var(--border);
}

.table-key--2col > div:last-child {
  padding-left: 2rem;
}

/* Figure / table captions */
.fig-caption {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.65rem;
  line-height: 1.55;
}

.fig-label {
  font-weight: 700;
  color: var(--text);
}

/* Protocol pills */
.protocol-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.protocol-pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.38rem 1rem;
  font-size: 0.82rem;
  background: var(--bg-elevated);
  color: var(--text);
  line-height: 1.4;
}

.protocol-pill strong { color: var(--accent); }

/* Methodology 3-step diagram */
.method-steps {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.5rem 0;
  justify-content: flex-start;
}

.step {
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  padding: 1rem 1.25rem;
  background: var(--bg-elevated);
  flex: 1 1 180px;
  max-width: 240px;
  min-width: 150px;
}

.step.current {
  border-color: var(--accent);
  background: var(--accent-bg);
}

.step-title {
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
  color: var(--text);
}

.step.current .step-title { color: var(--accent); }

.step-desc {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
}

.step-arrow {
  font-size: 1.3rem;
  color: var(--subtle);
  flex-shrink: 0;
  align-self: center;
}

/* Pull quote */
.pull-quote {
  border-left: 3px solid var(--accent);
  padding: 0.9rem 1.5rem;
  margin: 1.5rem 0 0;
  background: var(--accent-bg);
  border-radius: 0 0.4rem 0.4rem 0;
  font-size: 1.025rem;
  font-style: italic;
  color: var(--text);
  line-height: 1.6;
}

/* Notice box */
.notice-box {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  background: var(--accent-bg);
  border: 1px solid var(--accent-light);
  border-left: 3px solid var(--accent);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0 1.25rem;
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--text);
}

.notice-box svg { color: var(--accent); }

/* Living dataset action buttons */
.living-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

/* Footer links */
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 0.75rem;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.15s;
}

.footer-link:hover { color: var(--accent); text-decoration: none; }

/* Responsive additions */
@media (max-width: 640px) {
  .contribution-grid { grid-template-columns: 1fr; }
  .attribute-grid { grid-template-columns: repeat(2, 1fr); }
  .attr-img-wrap--dual { flex-direction: column; }
  .ml-label { width: 130px; font-size: 0.73rem; }
.method-steps { flex-direction: column; align-items: stretch; }
  .step { max-width: 100%; }
  .step-arrow { align-self: center; transform: rotate(90deg); }
}

/* =========================================================
   Attribute card modal
   ========================================================= */

.attr-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.52);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.attr-modal-backdrop.open {
  opacity: 1;
  pointer-events: all;
}

.attr-modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  max-width: 640px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
  transform: scale(0.96) translateY(10px);
  transition: transform 0.2s ease;
}

.attr-modal-backdrop.open .attr-modal {
  transform: scale(1) translateY(0);
}

.attr-modal-body {
  padding: 1.4rem 1.5rem 1.5rem;
}

.attr-modal-heading {
  display: block;
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0;
}

.attr-modal-close {
  position: absolute;
  top: 0.65rem;
  right: 0.7rem;
  background: rgba(128, 128, 128, 0.18);
  border: none;
  color: var(--text);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 1.1rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1;
  padding: 0;
  transition: background 0.15s;
}

.attr-modal-close:hover { background: rgba(128, 128, 128, 0.35); }

/* =========================================================
   Annotation Examples Gallery
   ========================================================= */

.examples-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.25rem;
}

.example-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  overflow: hidden;
  background: var(--bg-elevated);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.example-card:hover {
  border-color: var(--accent-light);
  box-shadow: 0 3px 14px var(--shadow-tint);
}

.example-card.partial .label-chip.imgt {
  position: relative;
  isolation: isolate;
  border: none;
  background: linear-gradient(to right, rgba(185, 28, 28, 0.07) 50%, rgba(21, 128, 61, 0.07) 50%);
  color: #8a1a1a;
}

.example-card.partial .label-chip.imgt::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 4px;
  background: linear-gradient(to right, rgba(185, 28, 28, 0.22) 50%, rgba(21, 128, 61, 0.22) 50%);
  z-index: -1;
}

[data-theme="dark"] .example-card.partial .label-chip.imgt {
  background: linear-gradient(to right, rgba(248, 113, 113, 0.08) 50%, rgba(74, 222, 128, 0.08) 50%);
  color: #fca5a5;
}

[data-theme="dark"] .example-card.partial .label-chip.imgt::before {
  background: linear-gradient(to right, rgba(248, 113, 113, 0.25) 50%, rgba(74, 222, 128, 0.25) 50%);
}

.example-card img {
  width: 100%;
  height: auto;
  display: block;
}

.example-labels {
  padding: 0.75rem 0.9rem 0.85rem;
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.label-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.label-chip {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
  white-space: nowrap;
  flex-shrink: 0;
  font-family: "JetBrains Mono", monospace;
}

.label-chip.imgt {
  background: rgba(185, 28, 28, 0.1);
  color: #b91c1c;
  border: 1px solid rgba(185, 28, 28, 0.22);
}

.label-chip.regt {
  background: rgba(21, 128, 61, 0.1);
  color: #15803d;
  border: 1px solid rgba(21, 128, 61, 0.22);
}

[data-theme="dark"] .label-chip.imgt {
  background: rgba(248, 113, 113, 0.12);
  color: #fca5a5;
  border-color: rgba(248, 113, 113, 0.25);
}

[data-theme="dark"] .label-chip.regt {
  background: rgba(74, 222, 128, 0.12);
  color: #86efac;
  border-color: rgba(74, 222, 128, 0.25);
}

.label-vals {
  font-size: 0.8rem;
  color: var(--text);
  line-height: 1.4;
}

.example-note {
  display: block;
  font-size: 0.73rem;
  color: var(--subtle);
  font-style: italic;
  margin-top: 0.35rem;
}

/* =========================================================
   "What's included" strip
   ========================================================= */

.includes-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.9rem 0 1.25rem;
}

.includes-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elevated);
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

.includes-chip svg { color: var(--accent); flex-shrink: 0; }

/* =========================================================
   Responsive additions
   ========================================================= */
@media (max-width: 900px) {
  .examples-grid { grid-template-columns: 1fr; }
  .example-card img { width: 100%; height: auto; }
}

@media (max-width: 640px) {
  .includes-chip { font-size: 0.75rem; }
}