/* ==========================================================================
   Yixin Zhang (张益新) — Academic Homepage Stylesheet (al-folio / academicpages style)
   Supports Light / Dark themes + Instant EN / ZH Language Toggle
   ========================================================================== */

:root,
html[data-theme="light"] {
  --bg-primary: #fafaf9;
  --bg-surface: #ffffff;
  --bg-subtle: #f3f4f6;
  --bg-accent-soft: #eef2ff;
  --bg-award-soft: #fffbeb;
  --text-primary: #111827;
  --text-secondary: #374151;
  --text-muted: #6b7280;
  --border-color: #e5e7eb;
  --border-strong: #d1d5db;
  --accent-primary: #1d4ed8;
  --accent-hover: #1e40af;
  --accent-secondary: #0f766e;
  --award-gold: #b45309;
  --award-border: #fcd34d;
  --orcid-green: #a6ce39;
  --orcid-text: #3f6212;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(17, 24, 39, 0.06), 0 2px 4px -2px rgba(17, 24, 39, 0.04);
  --shadow-lg: 0 12px 28px -6px rgba(17, 24, 39, 0.12);
  --code-bg: #f1f5f9;
  --code-text: #0f172a;
}

html[data-theme="dark"] {
  --bg-primary: #0b0f19;
  --bg-surface: #111827;
  --bg-subtle: #1e293b;
  --bg-accent-soft: rgba(59, 130, 246, 0.14);
  --bg-award-soft: rgba(245, 158, 11, 0.12);
  --text-primary: #f9fafb;
  --text-secondary: #d1d5db;
  --text-muted: #9ca3af;
  --border-color: #1f2937;
  --border-strong: #374151;
  --accent-primary: #60a5fa;
  --accent-hover: #93c5fd;
  --accent-secondary: #2dd4bf;
  --award-gold: #fbbf24;
  --award-border: rgba(251, 191, 36, 0.4);
  --orcid-green: #a6ce39;
  --orcid-text: #bef264;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 16px -3px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 36px -6px rgba(0, 0, 0, 0.7);
  --code-bg: #0f172a;
  --code-text: #e2e8f0;
}

/* Language Toggle Visibility Rules */
html[lang="en"] [data-lang="zh"] {
  display: none !important;
}

html[lang="zh"] [data-lang="en"] {
  display: none !important;
}

/* Base Reset & Typography */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

h1, h2, h3, h4 {
  font-family: "Georgia", "Times New Roman", "Songti SC", "Noto Serif CJK SC", serif;
  color: var(--text-primary);
  line-height: 1.3;
  margin-top: 0;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

code, pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

code {
  background-color: var(--code-bg);
  color: var(--code-text);
  padding: 0.15rem 0.38rem;
  border-radius: 4px;
  font-size: 0.875em;
  border: 1px solid var(--border-color);
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   Sticky Top Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand-title {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--text-primary);
  text-decoration: none !important;
}

.brand-name-en {
  font-family: "Georgia", serif;
  letter-spacing: -0.01em;
}

.brand-name-zh {
  font-size: 0.98rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.brand-orcid-pill {
  font-family: monospace;
  font-size: 0.72rem;
  font-weight: 600;
  background-color: rgba(166, 206, 57, 0.16);
  color: var(--orcid-text);
  border: 1px solid rgba(166, 206, 57, 0.45);
  padding: 0.12rem 0.48rem;
  border-radius: 999px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.15rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-links a:hover {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.control-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  padding: 0 0.7rem;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.control-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

html[data-theme="light"] .icon-sun {
  display: none;
}

html[data-theme="dark"] .icon-moon {
  display: none;
}

/* ==========================================================================
   Hero / Profile Section
   ========================================================================== */
.main-content {
  padding-top: 2.5rem;
  padding-bottom: 4rem;
}

.profile-hero {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 3rem;
}

.profile-grid {
  display: grid;
  grid-template-columns: 265px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.profile-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.avatar-card {
  background: linear-gradient(145deg, var(--bg-subtle), var(--bg-surface));
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.5rem 1rem;
  text-align: center;
}

.avatar-monogram {
  width: 112px;
  height: 112px;
  margin: 0 auto 0.9rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #1e3a8a 0%, #0f766e 100%);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(30, 58, 138, 0.25);
  border: 3px solid var(--bg-surface);
}

.monogram-letters {
  font-family: "Georgia", serif;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
}

.monogram-sub {
  font-size: 0.78rem;
  opacity: 0.9;
  margin-top: 2px;
}

.verified-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-secondary);
  background-color: var(--bg-subtle);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  display: inline-block;
}

.contact-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.86rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.meta-item svg {
  flex-shrink: 0;
  color: var(--accent-primary);
}

.email-link {
  font-family: monospace;
  font-size: 0.82rem;
  word-break: break-all;
}

.copy-inline-btn {
  margin-left: auto;
  font-size: 0.72rem;
  padding: 0.12rem 0.45rem;
  border-radius: 4px;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
}

.copy-inline-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.action-pill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 600;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  text-decoration: none !important;
  transition: all 0.15s ease;
}

.action-pill-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background-color: var(--bg-accent-soft);
}

.full-width {
  width: 100%;
}

/* Right Main Bio */
.honor-eyebrow {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.award-badge-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  background-color: var(--bg-award-soft);
  color: var(--award-gold);
  border: 1px solid var(--award-border);
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
}

.gde-badge-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  background-color: var(--bg-accent-soft);
  color: var(--accent-primary);
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
}

.researcher-name {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
}

.name-cjk {
  font-weight: 500;
  font-size: 1.75rem;
  color: var(--text-secondary);
}

.researcher-title {
  font-size: 1.06rem;
  color: var(--text-secondary);
  margin-top: 0;
  margin-bottom: 1.35rem;
}

/* Verified Academic Badges Grid */
.verified-badges-section {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem 1.15rem;
  margin-bottom: 1.4rem;
}

.badges-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.verified-badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(185px, 1fr));
  gap: 0.55rem;
}

.verified-badge {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.42rem 0.65rem;
  border-radius: 7px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  text-decoration: none !important;
  transition: transform 0.12s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.verified-badge:hover {
  transform: translateY(-1px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
}

.badge-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 26px;
  padding: 0 5px;
  border-radius: 5px;
  font-family: monospace;
  font-size: 0.73rem;
  font-weight: 800;
  flex-shrink: 0;
}

.badge-orcid .badge-icon {
  background-color: #a6ce39;
  color: #111827;
}

.badge-s2 .badge-icon {
  background-color: #1857b6;
  color: #ffffff;
}

.badge-arxiv .badge-icon {
  background-color: #b31b1b;
  color: #ffffff;
}

.badge-hf .badge-icon,
.badge-hf-paper .badge-icon {
  background-color: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.badge-github .badge-icon {
  background-color: #24292f;
  color: #ffffff;
}

.badge-gde .badge-icon {
  background-color: #2563eb;
  color: #ffffff;
}

.badge-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.2;
}

.badge-platform {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
}

.badge-id {
  font-family: monospace;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bio-prose p {
  margin: 0 0 0.9rem 0;
  color: var(--text-secondary);
  font-size: 0.97rem;
}

.bio-prose p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Section Blocks & Research Pillars
   ========================================================================== */
.section-block {
  margin-bottom: 3.25rem;
}

.section-header {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.55rem;
  margin-bottom: 0.25rem;
}

.section-subtitle {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.35rem;
}

.pillar-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.pillar-card:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
}

.pillar-number {
  font-family: monospace;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-primary);
  background-color: var(--bg-accent-soft);
  width: fit-content;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.65rem;
}

.pillar-title {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.pillar-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  flex: 1;
}

.pillar-body p {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.math-formula-box {
  background-color: var(--bg-subtle);
  border-left: 3px solid var(--accent-primary);
  padding: 0.45rem 0.75rem;
  margin: 0.65rem 0;
  border-radius: 0 6px 6px 0;
  text-align: center;
  font-weight: 600;
}

.pillar-list {
  padding-left: 1.15rem;
  margin: 0 0 1rem 0;
}

.pillar-list li {
  margin-bottom: 0.45rem;
}

.pillar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border-color);
}

.pillar-tags span {
  font-family: monospace;
  font-size: 0.72rem;
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

/* ==========================================================================
   Selected Publications & Honors
   ========================================================================== */
.honor-spotlight-card {
  display: flex;
  align-items: flex-start;
  gap: 1.15rem;
  background-color: var(--bg-award-soft);
  border: 1px solid var(--award-border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}

.honor-trophy {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
}

.honor-meta {
  font-family: monospace;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--award-gold);
  margin-bottom: 0.2rem;
}

.honor-headline {
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.honor-desc {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.publications-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pub-card {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1.35rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.pub-card.featured-pub {
  border-left: 4px solid var(--accent-primary);
}

.pub-badge-column {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: flex-start;
}

.pub-venue-badge {
  display: inline-block;
  font-family: monospace;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 0.22rem 0.55rem;
  border-radius: 5px;
  width: 100%;
  text-align: center;
}

.badge-neurips {
  background-color: #1e3a8a;
  color: #ffffff;
}

.badge-preprint {
  background-color: #0f766e;
  color: #ffffff;
}

.pub-rank-badge {
  display: inline-block;
  font-family: monospace;
  font-size: 0.74rem;
  font-weight: 700;
  background-color: var(--bg-award-soft);
  color: var(--award-gold);
  border: 1px solid var(--award-border);
  padding: 0.18rem 0.5rem;
  border-radius: 5px;
  width: 100%;
  text-align: center;
}

.pub-year-badge {
  font-family: monospace;
  font-size: 0.74rem;
  color: var(--text-muted);
  text-align: center;
  width: 100%;
}

.pub-title {
  font-size: 1.18rem;
  margin-bottom: 0.35rem;
}

.pub-title a {
  color: var(--text-primary);
}

.pub-title a:hover {
  color: var(--accent-primary);
}

.pub-authors {
  font-size: 0.94rem;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.author-self {
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.pub-venue-line {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.pub-summary {
  font-size: 0.9rem;
  color: var(--text-secondary);
  background-color: var(--bg-subtle);
  border-radius: 7px;
  padding: 0.85rem 1rem;
  margin-bottom: 0.95rem;
}

.pub-summary p {
  margin: 0;
}

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

.pub-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: monospace;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.32rem 0.7rem;
  border-radius: 5px;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  text-decoration: none !important;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pub-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background-color: var(--bg-accent-soft);
}

.pub-btn.btn-primary {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
}

.pub-btn.btn-primary:hover {
  background-color: var(--accent-hover);
  color: #ffffff;
}

/* ==========================================================================
   Benchmarks & Research Artifacts
   ========================================================================== */
.artifacts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.artifact-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.65rem;
  box-shadow: var(--shadow-sm);
}

.artifact-type-badge {
  display: inline-block;
  font-family: monospace;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-secondary);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 0.18rem 0.55rem;
  border-radius: 4px;
  margin-bottom: 0.45rem;
}

.artifact-title {
  font-size: 1.22rem;
  margin-bottom: 0.75rem;
}

.artifact-body p {
  margin-top: 0;
  color: var(--text-secondary);
  font-size: 0.93rem;
}

.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  margin: 1rem 0 1.15rem;
}

.metric-box {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.75rem 0.85rem;
  text-align: center;
}

.metric-val {
  display: block;
  font-family: monospace;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent-primary);
}

.metric-lbl {
  display: block;
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.artifact-features {
  margin: 0 0 1.1rem 0;
  padding-left: 1.2rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.artifact-features li {
  margin-bottom: 0.45rem;
}

.artifact-footer {
  display: flex;
  gap: 0.5rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-color);
}

/* ==========================================================================
   Academic Identity Table
   ========================================================================== */
.table-responsive {
  overflow-x: auto;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.identity-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: left;
}

.identity-table th,
.identity-table td {
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--border-color);
}

.identity-table th {
  background-color: var(--bg-subtle);
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

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

/* ==========================================================================
   Footer & Modal
   ========================================================================== */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-left p {
  margin: 0 0 0.25rem 0;
}

.footer-right {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* BibTeX Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: rgba(15, 23, 42, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  backdrop-filter: blur(4px);
}

.modal-backdrop[hidden] {
  display: none !important;
}

.modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  max-width: 680px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.35rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  margin: 0;
  font-size: 1.1rem;
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-body {
  padding: 1.25rem 1.35rem;
}

.bibtex-code-block {
  margin: 0;
  padding: 1rem;
  background-color: var(--code-bg);
  color: var(--code-text);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.55;
}

.bibtex-code-block code {
  background: none;
  border: none;
  padding: 0;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  padding: 0.9rem 1.35rem;
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border-color);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 300;
  background-color: #111827;
  color: #f9fafb;
  padding: 0.65rem 1.1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Industrial Translation & 60-90 Day OEM Turnkey Section (#transfer)
   ========================================================================== */
.action-pill-secondary {
  margin-top: 0.55rem;
  background-color: var(--bg-accent-soft);
  border-color: rgba(59, 130, 246, 0.35);
  color: var(--accent-primary);
}

.transfer-spotlight-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-left: 4px solid var(--accent-primary);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
}

.transfer-kpi-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.35rem;
}

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

.transfer-track-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.35rem;
}

.transfer-track-title {
  font-size: 1.12rem;
  margin-bottom: 0.75rem;
}

.transfer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.badge-openreview .badge-icon {
  background-color: #8c1b13;
  color: #ffffff;
}

.modal-dialog-wide {
  max-width: 780px;
}

#turnkey-modal-code {
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 68vh;
  overflow-y: auto;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 920px) {
  .profile-grid {
    grid-template-columns: 1fr;
  }

  .pillars-grid,
  .transfer-grid {
    grid-template-columns: 1fr;
  }

  .metrics-strip,
  .transfer-kpi-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

  .pub-badge-column {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .pub-venue-badge,
  .pub-rank-badge,
  .pub-year-badge {
    width: auto;
  }

  .metrics-strip,
  .transfer-kpi-strip {
    grid-template-columns: 1fr;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
    gap: 0.65rem;
    padding-bottom: 0.35rem;
  }

  .nav-links {
    display: flex;
    overflow-x: auto;
    white-space: nowrap;
    gap: 0.85rem;
    flex: 1;
    min-width: 0;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }
}