/* [TRACE: STYLE_GUIDE.md] ? Dev profile styles ? BEAUTIFIED */

/* === MODERN FONT === */
/* Fonts loaded via <link> in HTML <head> for parallel loading */

/* === CSS VARIABLES (THEMES) === */
@import 'themes/core.css';
@import 'themes/brands.css';
@import 'themes/editors.css';
@import 'themes/creative.css';

/* === BASE RESET === */
* {
  box-sizing: border-box;
}

/* === CUSTOM SCROLLBAR === */
/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--fg), transparent 80%) transparent;
}

/* Chrome, Edge, Safari */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: color-mix(in srgb, var(--fg), transparent 80%);
  border-radius: 10px;
  border: 3px solid transparent;
  background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
  background-color: color-mix(in srgb, var(--fg), transparent 50%);
  border: 2px solid transparent;
}

::-webkit-scrollbar-corner {
  background: transparent;
}

/* === LAYOUT: SIDEBAR + CONTENT === */
body {
  margin: 0;
  background: var(--bg-gradient, var(--bg));
  transition: background 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), color 0.3s ease;
  /* Nicer theme transition */

  min-height: 100vh;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--fg);
  overflow-x: hidden;
  position: relative;
  /* Sidebar Layout Grid: auto column follows sidebar width so it can transition */
  display: grid;
  grid-template-columns: auto 1fr;
}

/* === SIDEBAR NAVIGATION === */
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 64px;
  min-width: 64px;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--border);
  padding: 1rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 100;
  overflow-x: hidden;
  overflow-y: auto;
  transform-origin: 0 0;
  isolation: isolate;
  /* Stacking context for ::before; avoids banding vs. page background */
  transition:
    width 0.5s cubic-bezier(0.34, 1.2, 0.64, 1),
    min-width 0.5s cubic-bezier(0.34, 1.2, 0.64, 1),
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.45s cubic-bezier(0.34, 1.2, 0.64, 1);
}

.sidebar:hover {
  width: 240px;
  min-width: 240px;
  box-shadow: 12px 0 32px color-mix(in srgb, var(--bg) 65%, black 35%),
    4px 0 16px color-mix(in srgb, var(--accent) 12%, transparent);
}

.sidebar::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  /* Uniform tint on hover (old vertical gradient caused visible banding with scroll) */
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.sidebar:hover::before {
  opacity: 1;
}

/* Sidebar Links */
.sidebar a {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  color: var(--muted);
  text-decoration: none;
  border-radius: 12px;
  transform: translateX(0);
  transition:
    background-color 0.22s ease,
    color 0.22s ease,
    transform 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.32s ease;
  white-space: nowrap;
  font-weight: 500;
}

.sidebar a:hover {
  background: var(--accent-glow);
  color: var(--fg);
  transform: translateX(4px);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 28%, transparent);
}

.sidebar a.active {
  background: var(--accent-glow);
  color: var(--accent);
  font-weight: 600;
  box-shadow: inset 3px 0 0 0 var(--accent);
  /* Left border indicator */
}

.sidebar a.active:hover {
  transform: none;
  box-shadow:
    inset 3px 0 0 0 var(--accent),
    inset 0 0 0 1px color-mix(in srgb, var(--accent) 28%, transparent);
}

.sidebar-icon {
  font-size: 1.25rem;
  min-width: 1.5rem;
  text-align: center;
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1), color 0.22s ease;
}

.sidebar:hover .sidebar-icon {
  transform: translateX(1px);
}

.sidebar-text {
  opacity: 0;
  transform: translateX(-8px);
  filter: blur(2px);
  transition:
    opacity 0.18s linear 0.06s,
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.32s ease;
}

.sidebar:hover .sidebar-text {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

/* === MAIN CONTENT AREA === */
.content {
  --content-pad-x: 3rem;
  --content-pad-y: 2rem;
  padding: var(--content-pad-y) var(--content-pad-x);
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
  animation: slideInRight 0.6s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

/* Top bar: version badge, search, theme switcher */
.top-bar {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-bottom: 2rem;
  width: 100%;
}

.top-bar .version-badge {
  margin-right: auto;
}

.top-bar .search-trigger,
.top-bar .theme-switcher {
  position: static;
}

/* === GLASSMORPHISM & CARDS === */
.project-card,
.chat-link-card,
.home-link {
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px color-mix(in srgb, var(--bg) 72%, black 28%);
  overflow: hidden;
  /* Required for glint effect */
  position: relative;
}

/* Stronger Hover Glow & Glint Trigger */
.project-card:hover,
.chat-link-card:hover,
.home-link:hover {
  border-color: var(--accent);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent) 40%, transparent),
    0 18px 40px color-mix(in srgb, var(--accent) 18%, transparent),
    0 0 24px var(--accent-glow);
  transform: translateY(-5px) scale(1.02);
  z-index: 10;
  backdrop-filter: blur(12px);
  /* Lighting up effect — removed brightness for GPU savings */
}

/* === GLINT EFFECT === */
.project-card::after,
.chat-link-card::after,
.home-link::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right,
      transparent 0%,
      rgba(255, 255, 255, 0.01) 30%,
      rgba(255, 255, 255, 0.4) 50%,
      rgba(255, 255, 255, 0.01) 70%,
      transparent 100%);
  transform: skewX(-25deg);
  z-index: 20;
  pointer-events: none;
  transition: none;
}

.project-card:hover::after,
.chat-link-card:hover::after,
.home-link:hover::after {
  animation: shine 0.75s ease-out forwards;
}

@keyframes shine {
  0% {
    left: -100%;
    opacity: 0;
  }

  20% {
    opacity: 1;
  }

  100% {
    left: 200%;
    opacity: 0;
  }
}

/* === BENTO GRID UTILITIES === */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  grid-auto-flow: dense;
  /* Fill gaps */
}

.col-span-2 {
  grid-column: span 2;
}

.row-span-2 {
  grid-row: span 2;
}

/* Large Featured Card */
.card-featured {
  background: linear-gradient(
    135deg,
    var(--card) 0%,
    color-mix(in srgb, var(--accent) 10%, var(--card-solid)) 100%
  );
  border: 1px solid var(--accent);
}

.card-featured .chat-link-name {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.card-featured .chat-link-desc {
  font-size: 1rem;
}

/* === MOTION & ENTRANCE === */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Hide old top-nav and adjust responsive */
.top-nav {
  display: none !important;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
  body {
    grid-template-columns: 1fr;
    /* Stack layout */
    padding-bottom: 4rem;
    /* Bottom nav space */
  }

  .sidebar {
    position: fixed;
    bottom: 0;
    top: auto;
    height: auto;
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    padding: 0.5rem;
    border-top: 1px solid var(--border);
    border-right: none;
    background: var(--bg);
    /* Solid bg for mobile nav */
  }

  .sidebar-text {
    display: none;
    /* Icon only on mobile */
  }

  .content {
    --content-pad-x: 1rem;
    --content-pad-y: 1rem;
    padding: var(--content-pad-y) var(--content-pad-x);
  }

  .col-span-2 {
    grid-column: span 1;
    /* Stack bento on mobile */
  }
}

h1,
h2,
h3,
h4,
h5,
h6,
.home-title,
.profile-title,
.top-nav a {
  font-family: var(--font-heading, 'Inter', sans-serif);
  letter-spacing: -0.02em;
  text-wrap: balance;
  /* Modern typography 2025 */
}


/* Animated background noise texture */
/* === PREMIUM BACKGROUND MESH === */
body::before,
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* Primary Mesh Blob */
body::before {
  background: radial-gradient(circle at 15% 50%, var(--mesh-primary, var(--accent-glow)) 0%, transparent 45%),
    radial-gradient(
      circle at 85% 30%,
      var(--mesh-secondary, color-mix(in srgb, var(--accent) 20%, transparent)) 0%,
      transparent 40%
    );
  filter: blur(40px);
  animation: meshMove 15s ease-in-out infinite alternate;
  opacity: 0.42;
  will-change: transform;
}

/* Secondary Subtle Noise */
body::after {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
  opacity: 0.07;
  mix-blend-mode: overlay;
}

@keyframes meshMove {
  0% {
    transform: translate(0, 0) scale(1);
  }

  50% {
    transform: translate(-2%, 5%) scale(1.1);
  }

  100% {
    transform: translate(2%, -5%) scale(1);
  }
}

/* === STAGGERED ENTRANCE ANIMATIONS === */
.stagger-1,
.stagger-2,
.stagger-3,
.stagger-4,
.stagger-5 {
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.stagger-1 {
  animation-delay: 0.1s;
}

.stagger-2 {
  animation-delay: 0.2s;
}

.stagger-3 {
  animation-delay: 0.3s;
}

.stagger-4 {
  animation-delay: 0.4s;
}

.stagger-5 {
  animation-delay: 0.5s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
    filter: blur(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

/* Search and theme: same pop-in as nav (mimic stagger flow) */
.search-trigger,
.theme-switcher {
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.search-trigger {
  animation-delay: 0.2s;
}

.theme-switcher {
  animation-delay: 0.3s;
}

/* === NAVIGATION === */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 99;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.75rem 1rem;
  padding-right: 16rem;
  /* Reserve space for version badge + search + theme buttons */
  background: var(--glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.top-nav a {
  position: relative;
  padding: 0.45rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.top-nav a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transform: translateX(-50%);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.top-nav a:hover {
  color: var(--fg);
  background: rgba(255, 255, 255, 0.05);
}

.top-nav a:hover::after {
  width: 60%;
}

.top-nav a.active {
  color: var(--accent);
  font-weight: 600;
  background: var(--accent-glow);
}

.top-nav a.active::after {
  width: 70%;
}

/* === THEME SWITCHER === */
.theme-switcher {
  position: fixed;
  top: 0.65rem;
  right: 1rem;
  z-index: 100;
}

.theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 500;
  color: var(--fg);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-btn:hover {
  background: var(--card);
  border-color: var(--accent);
  box-shadow: 0 6px 20px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

.theme-btn-icon {
  font-size: 1.1rem;
  opacity: 0.9;
}

.theme-btn-arrow {
  font-size: 0.6rem;
  opacity: 0.6;
  transition: transform 0.2s ease;
}

.theme-btn:hover .theme-btn-arrow {
  transform: translateY(2px);
}

.theme-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  min-width: 11rem;
  padding: 0.5rem;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.2);
  animation: dropdownFade 0.2s ease-out;
}

.theme-group-title {
  padding: 0.5rem 0.75rem 0.25rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
  pointer-events: none;
}

.theme-group-title:first-child {
  margin-top: 0;
}

@keyframes dropdownFade {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(0.96);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.theme-dropdown[hidden] {
  display: none;
}

.theme-dropdown button {
  display: block;
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 500;
  text-align: left;
  color: var(--fg);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.theme-dropdown button:hover {
  background: var(--accent-glow);
  color: var(--accent);
  padding-left: 1rem;
}

/* === MAIN CONTENT === */
.profile {
  max-width: 100%;
  margin: 0;
  padding: 1.75rem 1.25rem;
}

/* Bleed past .content padding so one backdrop layer fills the main column (no inset “card”) */
.home {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  text-align: center;
  box-sizing: border-box;
  margin-inline: calc(-1 * var(--content-pad-x, 3rem));
  width: calc(100% + 2 * var(--content-pad-x, 3rem));
  max-width: none;
  padding: 2rem calc(var(--content-pad-x, 3rem) + 1rem) 3rem;
  position: relative;
  isolation: isolate;
}

/* Single ::before: top glow + dot grid + one hatch + vertical wash (no ::after / extra div) */
.home::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  border-radius: 0;
  opacity: 0.68;
  background:
    radial-gradient(ellipse 120% 70% at 50% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 58%),
    radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--fg) 14%, transparent) 0.5px, transparent 0),
    repeating-linear-gradient(
      118deg,
      transparent 0 14px,
      color-mix(in srgb, var(--accent) 6%, transparent) 14px,
      color-mix(in srgb, var(--accent) 6%, transparent) 15px
    ),
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--accent-glow) 7%, transparent),
      transparent 48%
    );
  background-size:
    100% 100%,
    20px 20px,
    auto,
    100% 100%;
  background-position:
    center top,
    0 0,
    center,
    center;
}

@media (prefers-reduced-motion: no-preference) {
  .home::before {
    animation: home-pattern-drift 32s linear infinite;
  }
}

@keyframes home-pattern-drift {
  0% {
    background-position:
      center top,
      0 0,
      center,
      center;
  }

  100% {
    background-position:
      center top,
      20px 20px,
      center,
      center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .home::before {
    animation: none;
  }
}

.home > * {
  position: relative;
  z-index: 1;
}

.home-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.5rem 1.25rem;
  width: min(100%, 48rem);
  align-self: center;
  position: relative;
  z-index: 1;
}

.home-image {
  margin-bottom: 1.75rem;
  position: relative;
  z-index: 2;
}

.home-image::before {
  content: '';
  position: absolute;
  inset: -8px;
  background: var(--accent-glow);
  border-radius: 16px;
  filter: blur(24px);
  opacity: 0.5;
  z-index: -1;
}

.home-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* [TRACE: improvement.plans.md] Gradient text: fg→accent, theme-aware */
.home-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
  color: var(--accent);
}

@supports (background-clip: text) or (-webkit-background-clip: text) {

  .home-title,
  .profile-title {
    color: transparent;
    -webkit-text-fill-color: transparent;
    /* Lighter→darker gradient; dark end kept at 75% accent so it stays readable on dark themes */
    background: linear-gradient(110deg,
        color-mix(in srgb, var(--accent) 55%, white) 0%,
        var(--accent) 50%,
        color-mix(in srgb, var(--accent) 75%, black) 100%);
    -webkit-background-clip: text;
    background-clip: text;
  }
}

.home-handle {
  color: var(--muted);
  margin: 0 0 0.6rem;
  font-weight: 500;
}

.home-info {
  color: var(--muted);
  font-size: 1rem;
  margin: 0 0 1.75rem;
  max-width: 34ch;
  text-wrap: balance;
}

.home-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.home-link {
  position: relative;
  padding: 0.6rem 1.5rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--glass);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
}

.home-link-icon {
  font-size: 1.1em;
}

.home-link--primary {
  background: linear-gradient(135deg, var(--accent) 0%, color-mix(in srgb, var(--accent) 85%, black) 100%);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 600;
  box-shadow: 0 4px 16px color-mix(in srgb, var(--accent) 40%, transparent);
}

.home-link--primary:hover {
  background: linear-gradient(135deg, var(--accent) 0%, color-mix(in srgb, var(--accent) 85%, black) 100%);
  color: var(--bg);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 60%, transparent);
}

/* Friend site (Nate's Space) — teal accent, matches Nates-Space branding */
.home-link--friend {
  --friend-teal: #2dd4bf;
  color: color-mix(in srgb, var(--friend-teal) 92%, white);
  border-color: color-mix(in srgb, var(--friend-teal) 45%, var(--border));
  background: color-mix(in srgb, var(--friend-teal) 12%, var(--glass));
}

.home-link--friend:hover {
  background: color-mix(in srgb, var(--friend-teal) 22%, var(--glass));
  border-color: color-mix(in srgb, var(--friend-teal) 65%, var(--border));
  box-shadow: 0 6px 22px color-mix(in srgb, var(--friend-teal) 28%, transparent);
}

.home-link:hover:not(.disabled) {
  background: var(--accent-glow);
  border-color: var(--accent);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.home-link.home-link--friend:hover:not(.disabled) {
  --friend-teal: #2dd4bf;
  color: color-mix(in srgb, var(--friend-teal) 95%, white);
  background: color-mix(in srgb, var(--friend-teal) 24%, var(--glass));
  border-color: color-mix(in srgb, var(--friend-teal) 65%, var(--border));
  box-shadow: 0 6px 22px color-mix(in srgb, var(--friend-teal) 30%, transparent);
}

/* Arteria (GAME-Arteria) — purple accent, matches otterdays.github.io/GAME-Arteria/ */
.home-link--arteria {
  --arteria-purple: #a78bfa;
  color: color-mix(in srgb, var(--arteria-purple) 92%, white);
  border-color: color-mix(in srgb, var(--arteria-purple) 42%, var(--border));
  background: color-mix(in srgb, var(--arteria-purple) 14%, var(--glass));
}

.home-link--arteria:hover {
  background: color-mix(in srgb, var(--arteria-purple) 24%, var(--glass));
  border-color: color-mix(in srgb, var(--arteria-purple) 62%, var(--border));
  box-shadow: 0 6px 22px color-mix(in srgb, var(--arteria-purple) 28%, transparent);
}

.home-link.home-link--arteria:hover:not(.disabled) {
  --arteria-purple: #a78bfa;
  color: color-mix(in srgb, var(--arteria-purple) 96%, white);
  background: color-mix(in srgb, var(--arteria-purple) 26%, var(--glass));
  border-color: color-mix(in srgb, var(--arteria-purple) 65%, var(--border));
  box-shadow: 0 6px 24px color-mix(in srgb, var(--arteria-purple) 32%, transparent);
}

.home-link.disabled {
  color: var(--muted);
  cursor: not-allowed;
  text-decoration: none;
  opacity: 0.6;
}

.home-server-callout {
  margin-top: 1rem;
  width: min(100%, 36rem);
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--fg), transparent 95%);
  box-shadow: 0 10px 30px color-mix(in srgb, var(--bg) 75%, black 25%);
}

.home-server-kicker {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.home-server-desc {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.home-server-link {
  margin-top: 0.55rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--fg);
  text-decoration: none;
  font-size: 0.87rem;
  font-weight: 600;
}

.home-server-link:hover {
  color: var(--accent);
}

/* Home Features Grid */
.home-features {
  width: min(100%, 70rem);
  max-width: 100%;
  margin-inline: auto;
  align-self: stretch;
  padding: 2rem 0.75rem;
  margin-top: 1rem;
}

.home-features-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 1.75rem;
  color: var(--fg);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.home-features-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
  max-width: 70rem;
  margin: 0 auto;
  padding: 0;
}

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  justify-content: center;
  min-height: 11rem;
  padding: 1.15rem 1.15rem;
  background: color-mix(in srgb, var(--fg), transparent 96%);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: inherit;
  text-decoration: none !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.feature-card:visited,
.feature-card:hover,
.feature-card:active {
  color: inherit;
  text-decoration: none !important;
}

.feature-card * {
  text-decoration: none !important;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 60%, transparent));
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--accent) 20%, transparent);
}

.feature-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.feature-card--nates {
  --friend-teal: #2dd4bf;
  border-color: color-mix(in srgb, var(--friend-teal) 35%, var(--border));
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--friend-teal) 10%, transparent) 0%,
    color-mix(in srgb, var(--fg), transparent 96%) 55%
  );
}

.feature-card--nates:hover {
  border-color: color-mix(in srgb, var(--friend-teal) 55%, var(--border));
  box-shadow: 0 12px 32px color-mix(in srgb, var(--friend-teal) 22%, transparent);
}

.feature-card--nates .feature-card-icon {
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--friend-teal) 45%, transparent));
}

.feature-card--nates:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--friend-teal) 75%, var(--border));
  outline-offset: 3px;
}

.feature-card--arteria {
  --arteria-purple: #a78bfa;
  border-color: color-mix(in srgb, var(--arteria-purple) 38%, var(--border));
  background: linear-gradient(
    155deg,
    color-mix(in srgb, var(--arteria-purple) 12%, transparent) 0%,
    color-mix(in srgb, var(--fg), transparent 96%) 58%
  );
}

.feature-card--arteria:hover {
  border-color: color-mix(in srgb, var(--arteria-purple) 52%, var(--border));
  box-shadow: 0 12px 32px color-mix(in srgb, var(--arteria-purple) 22%, transparent);
}

.feature-card--arteria .feature-card-icon {
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--arteria-purple) 45%, transparent));
}

.feature-card--arteria:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--arteria-purple) 72%, var(--border));
  outline-offset: 3px;
}

.feature-card:hover::before {
  opacity: 0.08;
}

.feature-card-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  display: block;
}

.feature-card h3 {
  font-size: 1.08rem;
  font-weight: 600;
  margin: 0 0 0.4rem;
  color: var(--fg);
  line-height: 1.28;
  text-wrap: balance;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.45;
  text-wrap: pretty;
}

@media (max-width: 42rem) {
  .home-features-grid {
    grid-template-columns: 1fr;
  }

  .home-title {
    font-size: 1.85rem;
  }

  .home-hero {
    padding: 1.5rem 1rem;
  }

  .home-link {
    padding: 0.55rem 1rem;
  }
}

/* === PROFILE HEADER === */
.profile-header {
  text-align: center;
  margin-bottom: 2.25rem;
}

/* [TRACE: improvement.plans.md] Gradient text: fg→accent, theme-aware */
.profile-title {
  font-size: 1.85rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
  color: var(--accent);
}

.profile-handle {
  color: var(--muted);
  margin: 0 0 1rem;
  font-weight: 500;
}

.profile-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.profile-links a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.profile-links a:hover {
  text-shadow: 0 0 12px var(--accent-glow);
}

/* === PROFILE SECTIONS === */
.profile-section {
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--glass);
  /* backdrop-filter removed for GPU savings — glass bg provides the effect */
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.profile-section h2 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.65rem;
  color: var(--accent);
}

.profile-section p {
  margin: 0;
  color: var(--muted);
}

.profile-section .about-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
  line-height: 1.6;
}

.profile-section .about-list li {
  margin-bottom: 0.5rem;
}

.profile-section .about-list li:last-child {
  margin-bottom: 0;
}

/* === PROJECTS GRID === */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
  margin-top: 0.65rem;
}

.project-card {
  position: relative;
  padding: 0.85rem;
  padding-top: 1.65rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: default;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 10px;
  padding: 1px;
  background: radial-gradient(600px circle at var(--mouse-x) var(--mouse-y), var(--accent), transparent 40%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.project-card:hover::before {
  opacity: 1;
}

.project-card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent) 32%, transparent),
    0 14px 30px color-mix(in srgb, var(--accent) 16%, transparent),
    0 0 18px var(--accent-glow);
}

.project-card:hover::before {
  opacity: 0.5;
}

/* === PROJECT BADGES === */
.project-badges {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  justify-content: flex-end;
}

.project-badge {
  font-size: 0.58rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: color-mix(in srgb, var(--badge-accent, var(--accent)) 80%, var(--fg));
  background: color-mix(in srgb, var(--badge-accent, var(--accent)) 12%, var(--card-solid));
  border: 1px solid color-mix(in srgb, var(--badge-accent, var(--accent)) 28%, var(--border));
  box-shadow: 0 2px 10px color-mix(in srgb, var(--badge-accent, var(--accent)) 12%, transparent);
  backdrop-filter: blur(4px);
  text-shadow: none;
}

.badge-game {
  --badge-accent: #ea580c;
}

.badge-software {
  --badge-accent: #4f46e5;
}

.badge-minecraft {
  --badge-accent: #059669;
}

.badge-music {
  --badge-accent: #7c3aed;
}

.badge-android {
  --badge-accent: #2563eb;
}

/* === PROJECT CONTENT === */
.project-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 0.4rem;
  color: var(--accent);
  transition: all 0.2s ease;
}

.project-card:hover .project-title {
  text-shadow: 0 0 16px var(--accent-glow);
}

.project-desc {
  margin: 0 0 0.55rem;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.project-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.tag {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  font-size: 0.68rem;
  font-weight: 500;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  transition: all 0.2s ease;
}

.project-card:hover .tag {
  border-color: var(--accent);
  color: var(--accent);
}

/* === CHAT LINKS GRID === */
.chat-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 0.65rem;
}

.chat-link-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1rem 1.15rem 2.8rem 1.15rem;
  /* Increased bottom padding for footer row */
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: inherit;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.chat-link-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(800px circle at var(--mouse-x) var(--mouse-y), rgba(255, 255, 255, 0.05), transparent 40%);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.chat-link-card:hover {
  border-color: var(--accent);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent) 34%, transparent),
    0 14px 32px color-mix(in srgb, var(--accent) 18%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transform: translateY(-3px);
}

.chat-link-card:hover::before {
  opacity: 1;
}

/* Unified badge system: .project-badge (programs), .tag (tech), .country-badge (origin) */
.chat-link-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
}

.chat-link-card .country-badge {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.12rem 0.32rem;
  font-size: 0.62rem;
  font-weight: 600;
  line-height: 1.1;
  max-width: 4.2rem;
  white-space: normal;
  word-break: break-word;
  text-align: right;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.chat-link-card:hover .country-badge {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
}

.chat-link-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.45;
}

.chat-link-arrow {
  position: absolute;
  bottom: 0.9rem;
  right: 1.15rem;
  font-size: 1.15rem;
  opacity: 0.5;
  transition: all 0.3s ease;
  transform: translateX(0);
}

.chat-link-card:hover .chat-link-arrow {
  opacity: 1;
  color: var(--accent);
  transform: translateX(3px);
}

/* URL in lower left */
.chat-link-url {
  position: absolute;
  bottom: 1.15rem;
  left: 1.15rem;
  font-size: 0.7rem;
  font-family: 'Space Grotesk', ui-monospace, monospace;
  color: var(--muted);
  opacity: 0.5;
  transition: all 0.3s ease;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  max-width: 70%;
  z-index: 5;
}

.chat-link-card:hover .chat-link-url {
  opacity: 1;
  color: var(--accent);
}

.chat-link-card:hover .chat-link-arrow {
  opacity: 1;
  transform: translateX(4px);
  color: var(--accent);
}

/* === COLLAPSIBLE SECTIONS (companies, tools, specials, skills, media) === */
/* [TRACE: STYLE_GUIDE.md] Body class .collapsible-pages + .companies-page for intro/badges. */
.companies-page .profile-section.companies-intro {
  display: block;
}

.companies-page .profile-section.companies-intro h2 {
  margin-bottom: 0.65rem;
}

.collapsible-pages .profile-section:has(.collapsible-wrapper) {
  position: relative;
  overflow: visible;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr;
  align-items: center;
  gap: 0 0.5rem;
}

.collapsible-pages .profile-section .section-toggle {
  grid-column: 1;
  grid-row: 1;
}

.collapsible-pages .profile-section h2 {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  align-self: center;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.companies-page .country-badge {
  font-size: 0.65rem;
  line-height: 1.1;
  opacity: 0.9;
  flex-shrink: 0;
  padding: 0.1rem 0.28rem;
  font-weight: 600;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.collapsible-pages .profile-section .collapsible-wrapper {
  grid-column: 1 / -1;
  grid-row: 2;
}

.collapsible-pages .section-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: auto;
  margin: 0;
  padding: 0.35rem;
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: var(--muted);
  transition: color 0.2s ease, background 0.2s ease;
}

.collapsible-pages .section-toggle:hover {
  color: var(--accent);
  background: var(--accent-glow);
}

.collapsible-pages .section-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.collapsible-pages .toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 1.5rem;
  border-radius: 6px;
  background: var(--border);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), background 0.2s ease;
}

.collapsible-pages .section-toggle:hover .toggle-icon {
  background: var(--accent);
  color: var(--bg);
}

.collapsible-pages .toggle-icon svg {
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.collapsible-pages .profile-section.minimized .toggle-icon svg {
  transform: rotate(-180deg);
}

.collapsible-pages .collapsible-wrapper {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows 0.4s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.35s ease;
  min-height: 0;
  overflow: hidden;
}

.collapsible-pages .profile-section:not(.minimized) .collapsible-wrapper {
  overflow: visible;
}

.collapsible-pages .collapsible-content {
  min-height: 0;
  overflow: visible;
}

.collapsible-pages .collapsible-content > .chat-links,
.collapsible-pages .collapsible-content > .bento-grid {
  margin-top: 0.5rem;
  padding-top: 0.25rem;
}

.collapsible-pages .profile-section.minimized .collapsible-wrapper {
  grid-template-rows: 0fr;
  opacity: 0;
}

.collapsible-pages .profile-section.minimized .collapsible-content > .chat-links,
.collapsible-pages .profile-section.minimized .collapsible-content > .bento-grid {
  margin-top: 0;
}

/* Compact layout on collapsible pages (match Companies density) */
.collapsible-pages .profile-header {
  margin-bottom: 1.5rem;
}

.collapsible-pages .profile-section {
  margin-top: 0.75rem;
  padding: 0.6rem 1rem;
}

.collapsible-pages .profile-section:has(.collapsible-wrapper) {
  padding: 0.5rem 1rem;
  gap: 0 0.4rem;
}

.collapsible-pages .profile-section:has(.collapsible-wrapper) h2 {
  font-size: 1rem;
}

.collapsible-pages .profile-section:not(:has(.collapsible-wrapper)) {
  padding: 0.85rem 1rem;
  margin-top: 1rem;
}

/* Media page: accent styling for collapsible section title boxes */
.media-page .profile-section.media-section-accent {
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}

.media-page .profile-section.media-section-accent h2 {
  font-size: 1.15rem;
}

/* === A-Z FILTER BAR === */
.filter-bar {
  position: sticky;
  top: 0;
  z-index: 90;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.6rem 0;
  margin-bottom: 1rem;
  background: var(--glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.filter-bar .filter-btn {
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.5rem;
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 600;
  color: var(--fg);
  background: color-mix(in srgb, var(--fg) 8%, transparent);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-bar .filter-btn:hover:not(:disabled) {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}

.filter-bar .filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.filter-bar .filter-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.filter-bar .filter-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Higher specificity to override collapsible-pages grid layout */
.collapsible-pages .profile-section.filter-hidden {
  display: none;
}

@media (max-width: 768px) {
  .filter-bar {
    gap: 0.25rem;
    padding: 0.5rem 0;
  }

  .filter-bar .filter-btn {
    min-width: 1.75rem;
    height: 1.75rem;
    font-size: 0.75rem;
  }
}

/* === RESPONSIVE ADJUSTMENTS === */
@media (max-width: 768px) {
  body {
    padding-top: 4.5rem;
    /* More room below nav when it wraps to two rows */
  }

  .top-nav {
    padding-right: 8rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }

  .top-nav a {
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
  }

  .home {
    padding-top: 3.5rem;
    /* Extra breathing room below nav for home title */
  }

  .profile {
    padding: 1.25rem 0.85rem;
    padding-top: 2rem;
    /* Clear gap between nav and page title */
  }

  .profile-title {
    font-size: 1.5rem;
  }

  .home-title {
    font-size: 1.85rem;
  }

  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }

  .chat-links {
    grid-template-columns: 1fr;
  }
}

/* === SCROLLBAR STYLING === */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 5px;
  border: 2px solid var(--bg);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

/* === SELECTION STYLING === */
::selection {
  background: var(--accent);
  color: var(--bg);
}

/* === FOCUS STATES === */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* === SEARCH SYSTEM === */
/* Search Trigger Button */
.search-trigger {
  position: fixed;
  top: 0.65rem;
  right: 8.5rem;
  z-index: 100;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 500;
  color: var(--muted);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-trigger:hover {
  color: var(--fg);
  background: var(--card);
  border-color: var(--accent);
  box-shadow: 0 6px 20px var(--accent-glow);
  transform: translateY(-1px);
}

.search-trigger-icon {
  font-size: 1rem;
  opacity: 0.8;
}

.search-trigger-text {
  display: none;
}

.search-trigger-kbd {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 0.15rem 0.4rem;
  font-size: 0.7rem;
  font-family: inherit;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
}

@media (min-width: 640px) {
  .search-trigger-text {
    display: inline;
  }
}

/* === PAGE LOADER === */
html:not(.ui-loading):not(.ui-ready) body > *:not(script):not(.page-loader) {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  animation: shellJsFallback 0s linear 2s forwards;
}

html.ui-loading body > *:not(script):not(.page-loader) {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

html.ui-ready body > *:not(script):not(.page-loader) {
  animation: shellReveal 0.34s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 2500;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.32s ease, visibility 0.32s ease;
}

.page-loader.is-visible {
  opacity: 1;
  visibility: visible;
}

.page-loader.is-exiting {
  opacity: 0;
}

.page-loader__panel {
  min-width: min(20rem, calc(100vw - 3rem));
  padding: 1rem 1rem 0.9rem;
  background: color-mix(in srgb, var(--card-solid) 88%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--border));
  border-radius: 18px;
  box-shadow:
    0 24px 70px color-mix(in srgb, var(--bg) 72%, black 28%),
    0 0 28px var(--accent-glow);
  text-align: center;
}

.page-loader__mark {
  width: 0.75rem;
  height: 0.75rem;
  margin: 0 auto 0.8rem;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent-glow);
  animation: loaderPulse 1.2s ease-in-out infinite;
}

.page-loader__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--fg);
  text-transform: uppercase;
}

.page-loader__bar {
  position: relative;
  height: 4px;
  margin-top: 0.85rem;
  overflow: hidden;
  background: color-mix(in srgb, var(--fg) 10%, transparent);
  border-radius: 999px;
}

.page-loader__bar-fill {
  display: block;
  width: 42%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--accent) 20%, transparent) 0%,
    var(--accent) 50%,
    color-mix(in srgb, var(--accent) 20%, transparent) 100%
  );
  animation: loaderSweep 1.1s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes loaderPulse {
  0%,
  100% {
    transform: scale(0.92);
    opacity: 0.85;
  }

  50% {
    transform: scale(1.08);
    opacity: 1;
  }
}

@keyframes shellReveal {
  from {
    opacity: 0;
    transform: translateY(10px);
    filter: blur(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@keyframes shellJsFallback {
  to {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
}

@keyframes loaderSweep {
  0% {
    transform: translateX(-130%);
  }

  100% {
    transform: translateX(320%);
  }
}

/* Search Modal Overlay */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 4rem 1rem;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-overlay[hidden] {
  display: none;
}

/* Search Modal */
.search-modal {
  width: 100%;
  max-width: 600px;
  max-height: calc(100vh - 8rem);
  background: var(--card-solid);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05);
  overflow: hidden;
  transform: scale(0.96) translateY(-10px);
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-overlay.active .search-modal {
  transform: scale(1) translateY(0);
}

/* Search Header */
.search-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--glass);
}

.search-icon {
  font-size: 1.25rem;
  opacity: 0.6;
}

.search-input {
  flex: 1;
  padding: 0;
  font-size: 1.1rem;
  font-family: inherit;
  font-weight: 500;
  color: var(--fg);
  background: transparent;
  border: none;
  outline: none;
}

.search-input::placeholder {
  color: var(--muted);
  opacity: 0.7;
}

.search-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  font-size: 0.7rem;
  font-family: inherit;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.search-close:hover {
  color: var(--fg);
  border-color: var(--accent);
}

/* Search Meta */
.search-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1.25rem;
  font-size: 0.75rem;
  color: var(--muted);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

/* === MODERN SCROLL PROGRESS (2025) — single source (theme.js injects bar) === */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 9999;
  pointer-events: none;
  background: transparent;
}

.scroll-progress-fill {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-glow));
  transform-origin: 0 50%;
  transform: scaleX(0);
  animation: grow-progress auto linear;
  animation-timeline: scroll();
}

@keyframes grow-progress {
  from {
    transform: scaleX(0);
  }

  to {
    transform: scaleX(1);
  }
}

.search-count {
  font-weight: 500;
}

.search-hints {
  display: flex;
  gap: 0.75rem;
}

.search-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.search-hint kbd {
  padding: 0.1rem 0.35rem;
  font-size: 0.65rem;
  font-family: inherit;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 3px;
}

/* Search Results */
.search-results {
  max-height: 400px;
  overflow-y: auto;
  padding: 0.5rem;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  text-decoration: none;
  color: inherit;
  border-radius: 10px;
  transition: all 0.15s ease;
  cursor: pointer;
}

.search-result-item:hover,
.search-result-item.selected {
  background: var(--accent-glow);
}

.search-result-item.selected {
  box-shadow: inset 0 0 0 1px var(--accent);
}

.search-result-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 1.1rem;
  background: var(--accent);
  border-radius: 10px;
  flex-shrink: 0;
}

.search-result-content {
  flex: 1;
  min-width: 0;
}

.search-result-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.15rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: nowrap;
  min-width: 0;
}

.search-result-title-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-category {
  font-size: 0.65rem;
  font-weight: 500;
  padding: 0.1rem 0.4rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  flex-shrink: 0;
}

.search-result-item.selected .search-result-title,
.search-result-item:hover .search-result-title {
  color: var(--accent);
}

.search-result-desc {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.search-result-tags {
  display: flex;
  gap: 0.35rem;
  margin-top: 0.35rem;
}

.search-result-tag {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  font-size: 0.65rem;
  font-weight: 500;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
}

.search-result-arrow {
  font-size: 1rem;
  color: var(--muted);
  opacity: 0;
  transform: translateX(-4px);
  transition: all 0.2s ease;
}

.search-result-item:hover .search-result-arrow,
.search-result-item.selected .search-result-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--accent);
}

/* Empty State */
.search-empty {
  text-align: center;
  padding: 2.5rem 1rem;
}

.search-empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.5;
}

.search-empty-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.35rem;
}

.search-empty-hint {
  font-size: 0.85rem;
  color: var(--muted);
}

/* Search Results Scrollbar */
.search-results::-webkit-scrollbar {
  width: 6px;
}

.search-results::-webkit-scrollbar-track {
  background: transparent;
}

.search-results::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.search-results::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

/* Mobile: nav only in top bar; search + theme on their own row below */
@media (max-width: 640px) {
  body {
    padding-top: 8rem;
    /* Clear nav + utility row (search + theme) */
  }

  .home {
    padding-top: 4rem;
  }

  .profile {
    padding-top: 2.5rem;
  }

  .top-nav {
    padding-right: 1rem;
    /* Nav no longer reserves space for buttons */
    min-height: 5rem;
    /* At least 2 rows so buttons sit below */
  }

  .theme-switcher {
    top: 5.5rem;
    /* Own row below nav */
    right: 1rem;
    left: auto;
  }

  .theme-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
    min-height: 2.5rem;
  }

  .theme-btn-label {
    max-width: 4rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .theme-dropdown {
    max-height: min(70vh, 20rem);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .search-trigger {
    top: 5.5rem;
    /* Same row as theme, left of it */
    right: auto;
    left: 1rem;
    padding: 0.5rem 0.75rem;
    min-height: 2.5rem;
    min-width: 2.75rem;
  }

  .search-trigger-icon {
    font-size: 1.15rem;
  }

  .search-trigger-kbd {
    display: none;
  }

  .search-overlay {
    padding: 1rem;
    align-items: flex-start;
  }

  .search-modal {
    max-height: calc(100vh - 2rem);
  }

  .search-hints {
    display: none;
  }
}

/* Very narrow: same layout, slightly more spacing */
@media (max-width: 480px) {
  body {
    padding-top: 8.25rem;
  }

  .home {
    padding-top: 4.25rem;
  }

  .profile {
    padding-top: 2.75rem;
  }

  .top-nav {
    min-height: 5.25rem;
  }

  .theme-switcher {
    top: 5.75rem;
    right: 1rem;
  }

  .search-trigger {
    top: 5.75rem;
    left: 1rem;
  }
}

/* === QoL ADDITIONS === */

/* Scroll to Top Button */
.scroll-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  background: var(--card-solid);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--fg);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease,
    background 0.2s ease, border-color 0.2s ease;
  z-index: 99;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
}

/* External Link Indicator */
.chat-links a[target="_blank"] .chat-link-arrow,
.about-list a[target="_blank"]::after {
  content: "\2197 ";
  font-family: system-ui;
  margin-left: 0.25rem;
  font-size: 0.85em;
  opacity: 0.7;
}

.chat-link-card .chat-link-arrow {
  content: "\2192 ";
  opacity: 1;
}

.chat-link-card[target="_blank"] .chat-link-arrow {
  content: "\2197 ";
}

/* === SEARCH HIGHLIGHT & JUMP === */
/* Applied to elements found via search navigation */
.search-highlight {
  animation: search-pulse 0.6s ease-out 3;
  position: relative;
  z-index: 10;
}

.search-highlight::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 12px;
  background: var(--accent);
  opacity: 0;
  animation: search-glow 0.6s ease-out 3;
  pointer-events: none;
  z-index: -1;
}

@keyframes search-pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.02);
  }
}

@keyframes search-glow {
  0% {
    opacity: 0;
    transform: scale(0.95);
  }

  50% {
    opacity: 0.3;
    transform: scale(1.02);
  }

  100% {
    opacity: 0;
    transform: scale(1);
  }
}

/* Specific highlight styling for different elements */
.chat-link-card.search-highlight {
  box-shadow:
    0 0 0 3px var(--accent),
    0 8px 32px var(--accent-glow);
}

.project-card.search-highlight {
  box-shadow:
    0 0 0 3px var(--accent),
    0 12px 40px var(--accent-glow);
}

h2.search-highlight,
h3.search-highlight {
  background: linear-gradient(90deg, var(--accent-glow) 0%, transparent 100%);
  border-radius: 8px;
  padding: 0.25rem 0.5rem;
  margin-left: -0.5rem;
}

/* Animated Background */
@keyframes bg-shift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

body {
  background-size: 400% 400%;
  animation: bg-shift 15s ease infinite;
}

/* Site Footer */
.site-footer {
  text-align: center;
  padding: 3rem 1rem;
  margin-top: 4rem;
  color: var(--muted);
  font-size: 0.875rem;
  border-top: 1px solid var(--border);
}

.site-stats {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.stat-icon {
  opacity: 0.7;
}

.stat-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: inherit;
  text-decoration: none;
  background: none;
  border: none;
  font: inherit;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s ease;
}

.stat-link:hover {
  color: var(--accent);
}

.stat-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.site-clock {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  opacity: 0.85;
}

/* === VERSION BADGE === */
.version-badge {
  position: fixed;
  top: 0.6rem;
  right: 25rem;
  left: auto;
  z-index: 100;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, var(--card-solid));
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--border));
  border-radius: 999px;
  box-shadow:
    0 8px 24px color-mix(in srgb, var(--accent) 16%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.28);
  text-shadow: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) 0.15s forwards;
  opacity: 0;
}

.version-badge:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 12px 30px color-mix(in srgb, var(--accent) 22%, transparent),
    0 0 20px var(--accent-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.32);
  text-decoration: none;
  color: var(--accent);
}

.version-badge:active {
  transform: translateY(0) scale(0.98);
}

.version-badge-icon {
  font-size: 0.9rem;
  line-height: 1;
}

.version-badge-text {
  text-transform: uppercase;
}

.version-badge-tag {
  display: inline-block;
  padding: 0.1rem 0.35rem;
  margin-left: 0.1rem;
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-radius: 4px;
  text-transform: uppercase;
}

/* Pulse animation for "new" indicator */
.version-badge::after {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 6px #22c55e;
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.6;
    transform: scale(1.2);
  }
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .version-badge {
    top: auto;
    bottom: 4.5rem;
    right: 1rem;
    left: auto;
    font-size: 0.65rem;
    padding: 0.3rem 0.6rem;
  }
}

/* === UPDATE TIMELINE === */
.update-timeline {
  position: relative;
  padding-inline-start: 2rem;
  margin-top: 2rem;
}

.update-timeline::before {
  content: '';
  position: absolute;
  left: 0.4rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 1px;
}

.update-card {
  position: relative;
  margin-bottom: 1.5rem;
  content-visibility: auto;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.update-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.update-dot {
  position: absolute;
  left: -2rem;
  top: 1.25rem;
  width: 12px;
  height: 12px;
  margin-left: -5px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-glow);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.update-card:hover .update-dot {
  box-shadow: 0 0 20px var(--accent-glow);
  transform: scale(1.15);
}

.update-card-inner {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.update-card--latest .update-card-inner {
  box-shadow: 0 0 20px var(--accent-glow), 0 4px 16px rgba(0, 0, 0, 0.1);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
}

.update-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.update-version {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
}

.update-date {
  font-size: 0.85rem;
  color: var(--muted);
}

.update-section {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.update-section:last-child {
  margin-bottom: 0;
}

.update-badge {
  display: inline-block;
  padding: 0.3rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 6px;
  line-height: 1.2;
  border: 1px solid transparent;
}

.update-badge--added {
  background: color-mix(in srgb, #22c55e 22%, var(--bg));
  border-color: color-mix(in srgb, #22c55e 35%, transparent);
  color: color-mix(in srgb, #22c55e 95%, var(--fg));
}

.update-badge--changed {
  background: color-mix(in srgb, var(--accent) 20%, var(--bg));
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  color: color-mix(in srgb, var(--accent) 85%, var(--fg));
}

.update-badge--fixed {
  background: color-mix(in srgb, #f59e0b 20%, var(--bg));
  border-color: color-mix(in srgb, #f59e0b 35%, transparent);
  color: color-mix(in srgb, #f59e0b 92%, var(--fg));
}

.update-badge--removed {
  background: color-mix(in srgb, #ef4444 18%, var(--bg));
  border-color: color-mix(in srgb, #ef4444 32%, transparent);
  color: color-mix(in srgb, #ef4444 90%, var(--fg));
}

.update-badge--latest {
  background: color-mix(in srgb, var(--accent) 24%, var(--bg));
  border-color: color-mix(in srgb, var(--accent) 50%, transparent);
  color: var(--fg);
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0.03em;
}

.update-list {
  margin: 0;
  width: 100%;
  padding-inline-start: 1.35rem;
  color: color-mix(in srgb, var(--fg) 88%, var(--muted));
  line-height: 1.65;
}

.update-list strong {
  color: var(--fg);
  font-weight: 600;
}

.update-list li {
  margin-bottom: 0.35rem;
}

.update-list li:last-child {
  margin-bottom: 0;
}

@media (max-width: 640px) {
  .update-timeline {
    padding-inline-start: 1.5rem;
  }

  .update-timeline::before {
    left: 0.25rem;
  }

  .update-dot {
    left: -1.5rem;
    width: 10px;
    height: 10px;
    margin-left: -4px;
  }

  .update-card-inner {
    padding: 1rem 1.25rem;
  }
}

/* === REDUCED MOTION (A11y) === */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* === SKIP LINK (A11y) === */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  transition: top 0.2s ease;
}

.skip-link:focus-visible {
  top: 1rem;
}

/* === FOCUS-VISIBLE (A11y) === */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* === AI MODEL MUSEUM === */

/* Featured Exhibit — hero display case for the newest model */
.featured-exhibit {
  position: relative;
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem 2rem 2rem;
  margin-bottom: 2.5rem;
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  /* spotlight glow from above */
  box-shadow:
    0 0 60px -10px color-mix(in srgb, var(--accent), transparent 55%),
    0 4px 32px color-mix(in srgb, var(--bg), transparent 30%);
}

.featured-exhibit::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 280px;
  height: 220px;
  background: radial-gradient(
    ellipse at center top,
    color-mix(in srgb, var(--accent), transparent 55%) 0%,
    transparent 70%
  );
  pointer-events: none;
  animation: spotlight-pulse 4s ease-in-out infinite;
}

@keyframes spotlight-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.featured-exhibit:hover {
  transform: translateY(-3px);
  box-shadow:
    0 0 90px -10px color-mix(in srgb, var(--accent), transparent 40%),
    0 8px 40px color-mix(in srgb, var(--bg), transparent 20%);
}

/* "NEWEST EXHIBIT" ribbon badge */
.exhibit-new-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent), #f0c 10%),
    var(--accent)
  );
  color: var(--bg);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
  margin-bottom: 1.25rem;
  box-shadow: 0 2px 12px color-mix(in srgb, var(--accent), transparent 50%);
  animation: badge-glow 2.5s ease-in-out infinite;
}

@keyframes badge-glow {
  0%, 100% { box-shadow: 0 2px 12px color-mix(in srgb, var(--accent), transparent 50%); }
  50% { box-shadow: 0 2px 24px color-mix(in srgb, var(--accent), transparent 25%); }
}

/* Exhibit identifier number */
.exhibit-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.featured-exhibit .exhibit-number {
  font-size: 0.72rem;
}

/* Featured exhibit model name */
.featured-exhibit .exhibit-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--fg) 0%, var(--accent) 60%, var(--fg) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0 0 0.5rem;
  line-height: 1.1;
  text-wrap: balance;
}

/* Company + date meta line */
.exhibit-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.exhibit-meta strong {
  color: var(--fg);
  font-weight: 600;
}

.exhibit-divider {
  color: var(--border);
}

/* Description text */
.exhibit-desc {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  max-width: 58ch;
}

.featured-exhibit .exhibit-desc {
  font-size: 1rem;
  max-width: 64ch;
}

/* Capability trait pills */
.exhibit-traits {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.exhibit-trait {
  display: inline-flex;
  padding: 0.2rem 0.55rem;
  border-radius: 5px;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  background: color-mix(in srgb, var(--fg), transparent 90%);
  color: color-mix(in srgb, var(--fg), transparent 20%);
  border: 1px solid var(--border);
  transition: background 0.2s ease, color 0.2s ease;
}

.exhibit-trait:hover {
  background: color-mix(in srgb, var(--accent), transparent 80%);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent), transparent 50%);
}

.featured-exhibit .exhibit-trait {
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
}

/* Museum Gallery Grid */
.museum-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1.25rem;
}

/* Individual exhibit display case */
.exhibit-card {
  position: relative;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  /* company accent left stripe */
  border-left: 3px solid var(--exhibit-accent, var(--border));
}

.exhibit-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px color-mix(in srgb, var(--exhibit-accent, var(--accent)), transparent 65%);
  border-color: color-mix(in srgb, var(--exhibit-accent, var(--accent)), transparent 40%);
}

/* Company accent colors via data attribute */
.exhibit-card[data-company="anthropic"] { --exhibit-accent: #d97757; }
.exhibit-card[data-company="openai"]    { --exhibit-accent: #10a37f; }
.exhibit-card[data-company="google"]    { --exhibit-accent: #4285f4; }
.exhibit-card[data-company="xai"]       { --exhibit-accent: #9b7fff; }
.exhibit-card[data-company="deepseek"]  { --exhibit-accent: #2db0a8; }
.exhibit-card[data-company="meta"]      { --exhibit-accent: #0082fb; }
.exhibit-card[data-company="mistral"]   { --exhibit-accent: #ff7000; }
.exhibit-card[data-company="cursor"]    { --exhibit-accent: #a78bfa; }
.exhibit-card[data-company="moonshot"]  { --exhibit-accent: #f59e0b; }
.exhibit-card[data-company="hkchat"]    { --exhibit-accent: #7c3aed; }
.exhibit-card[data-company="zhipu"]     { --exhibit-accent: #e11d48; }
.exhibit-card[data-company="xiaomi"]    { --exhibit-accent: #ff6900; }
.exhibit-card[data-company="alibaba"]   { --exhibit-accent: #ff6a00; }

/* Cursor picker snapshot (menu labels) */
.museum-picker-snapshot-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.25rem;
  align-items: stretch;
  margin: 0 0 1.35rem;
  max-width: 72rem;
}

.museum-picker-snapshot-pair .museum-picker-snapshot {
  margin-bottom: 0;
  max-width: none;
  min-width: 0;
}

@media (max-width: 52rem) {
  .museum-picker-snapshot-pair {
    grid-template-columns: 1fr;
  }
}

.museum-picker-snapshot {
  background: color-mix(in srgb, var(--fg), transparent 94%);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem 1.1rem;
  margin: 0 0 1.35rem;
  max-width: 56rem;
}

/* Qwen Code add-on row — own card (not under the Cursor snapshot title) */
.museum-picker-snapshot--qwen-code {
  border-color: color-mix(in srgb, var(--accent) 38%, var(--border));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 14%, transparent);
}

.museum-picker-snapshot-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.museum-picker-snapshot-desc {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
  line-height: 1.55;
}

.museum-picker-group-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--fg);
  margin: 0.65rem 0 0.35rem;
  line-height: 1.4;
}

.museum-picker-snapshot-desc + .museum-picker-group-title {
  margin-top: 0.35rem;
}

.museum-picker-list {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 0.9rem;
  color: var(--fg);
  line-height: 1.65;
}

.museum-picker-list li {
  margin-bottom: 0.25rem;
}

.museum-picker-list--columns {
  column-count: 2;
  column-gap: 1.75rem;
}

@media (max-width: 42rem) {
  .museum-picker-list--columns {
    column-count: 1;
  }
}

.museum-picker-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  margin: 0.35rem 0 0.5rem;
}

.museum-picker-table th,
.museum-picker-table td {
  padding: 0.35rem 0.5rem;
  text-align: start;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.museum-picker-table th {
  font-weight: 600;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.museum-picker-badge {
  display: inline-block;
  margin-inline-start: 0.35rem;
  padding: 0.1rem 0.45rem;
  border-radius: 6px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: color-mix(in srgb, var(--muted), transparent 78%);
  color: var(--fg);
  border: 1px solid var(--border);
}

.museum-picker-warn {
  margin-inline-start: 0.25rem;
  color: #eab308;
  font-size: 0.95em;
}

/* Q1 2026 roster: flagship row + dense companion grid */
.museum-roster-note {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
  margin: -0.5rem 0 1.25rem;
  max-width: 72ch;
}

.museum-gallery--flagship {
  margin-bottom: 0.5rem;
}

.museum-gallery--roster {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.museum-gallery--roster .exhibit-desc {
  font-size: 0.88rem;
  line-height: 1.55;
}

.exhibit-card--flagship {
  border-left-width: 4px;
  box-shadow:
    0 0 0 1px color-mix(in srgb, #fbbf24, transparent 75%),
    0 8px 28px color-mix(in srgb, var(--exhibit-accent, var(--accent)), transparent 72%);
}

.exhibit-era--flagship {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, #fbbf24, transparent 20%),
    color-mix(in srgb, #f59e0b, transparent 35%)
  );
  color: var(--bg);
  border-color: color-mix(in srgb, #f59e0b, transparent 40%);
}

/* Card header row: exhibit number + era badge */
.exhibit-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Era year badge */
.exhibit-era {
  display: inline-flex;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: color-mix(in srgb, var(--exhibit-accent, var(--accent)), transparent 82%);
  color: var(--exhibit-accent, var(--accent));
  border: 1px solid color-mix(in srgb, var(--exhibit-accent, var(--accent)), transparent 55%);
}

/* Card model name */
.exhibit-card .exhibit-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--fg);
  margin: 0;
  line-height: 1.25;
}

/* Card exhibit traits push to bottom */
.exhibit-card .exhibit-traits {
  margin-top: auto;
}

/* Museum section headings */
.museum-section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin: 2rem 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.museum-section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--border), transparent);
}

/* Museum intro blurb */
.museum-intro-card {
  background: color-mix(in srgb, var(--accent), transparent 92%);
  border: 1px solid color-mix(in srgb, var(--accent), transparent 70%);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.museum-intro-card em {
  color: var(--fg);
  font-style: normal;
  font-weight: 500;
}

/* Gateway to premium Google Gemini provider page */
.museum-gemini-gateway {
  margin: 0 0 2rem;
  padding: 1.25rem 1.35rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, #4285f4, transparent 55%);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, #4285f4, transparent 90%) 0%,
    color-mix(in srgb, var(--accent), transparent 94%) 100%
  );
  max-width: 52rem;
}

.museum-gemini-gateway-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: color-mix(in srgb, #1a73e8, var(--fg) 35%);
  margin: 0 0 0.5rem;
}

.museum-gemini-gateway-desc {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 0 0 0.85rem;
  max-width: 62ch;
}

/* Master catalog: Wikipedia-style table + filter */
.museum-catalog-section {
  margin-block: 2rem 2.5rem;
  content-visibility: auto;
  contain-intrinsic-size: 0 1200px;
}

.museum-catalog-lede {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
  max-width: 72ch;
  margin: 0 0 1rem;
}

.museum-catalog-lede a {
  color: var(--accent);
}

.museum-catalog-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-bottom: 0.85rem;
}

.museum-catalog-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.museum-catalog-filter {
  flex: 1 1 220px;
  min-width: 0;
  max-width: 28rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--fg);
  font: inherit;
  font-size: 0.9rem;
}

.museum-catalog-filter:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent), transparent 35%);
  outline-offset: 2px;
}

.museum-catalog-count {
  font-size: 0.8rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.museum-table-wrap {
  overflow-x: auto;
  overflow-y: visible;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg), transparent 5%);
  -webkit-overflow-scrolling: touch;
}

.museum-table-wrap:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent), transparent 40%);
  outline-offset: 2px;
}

.museum-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
  font-size: 0.8rem;
  line-height: 1.45;
}

.museum-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  text-align: left;
  padding: 0.65rem 0.75rem;
  background: color-mix(in srgb, var(--bg), transparent 8%);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  color: var(--fg);
  white-space: nowrap;
}

.museum-table tbody th {
  text-align: left;
  font-weight: 600;
  color: var(--fg);
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid color-mix(in srgb, var(--border), transparent 40%);
  white-space: nowrap;
}

.museum-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid color-mix(in srgb, var(--border), transparent 55%);
  color: var(--muted);
  vertical-align: top;
}

.museum-table tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--fg), transparent 97%);
}

.museum-table tbody tr[hidden] {
  display: none;
}

.museum-table tbody td:last-child {
  max-width: 32rem;
}

.license-pill {
  display: inline-block;
  padding: 0.12rem 0.45rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  border: 1px solid transparent;
}

.license-pill--open {
  background: color-mix(in srgb, #22c55e, transparent 82%);
  color: color-mix(in srgb, #166534, var(--fg) 40%);
  border-color: color-mix(in srgb, #22c55e, transparent 55%);
}

.license-pill--prop {
  background: color-mix(in srgb, #6366f1, transparent 82%);
  color: color-mix(in srgb, #312e81, var(--fg) 35%);
  border-color: color-mix(in srgb, #6366f1, transparent 50%);
}

.license-pill--restricted {
  background: color-mix(in srgb, #eab308, transparent 78%);
  color: color-mix(in srgb, #713f12, var(--fg) 30%);
  border-color: color-mix(in srgb, #ca8a04, transparent 45%);
}

.license-pill--unrel {
  background: color-mix(in srgb, var(--muted), transparent 75%);
  color: var(--fg);
  border-color: color-mix(in srgb, var(--border), transparent 20%);
}

/* Google Gemini premium provider page */
.gemini-premium-page {
  container-type: inline-size;
}

.gemini-premium-hero {
  text-align: start;
  padding: 1.35rem 1.5rem 1.5rem;
  margin-bottom: 0.25rem;
  border-radius: 14px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, #4285f4, transparent 86%) 0%,
    color-mix(in srgb, var(--bg), transparent 12%) 55%,
    color-mix(in srgb, #34a853, transparent 92%) 100%
  );
  border: 1px solid color-mix(in srgb, #4285f4, transparent 55%);
  box-shadow: 0 12px 40px color-mix(in srgb, #4285f4, transparent 88%);
}

.gemini-premium-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: color-mix(in srgb, #1a73e8, var(--fg) 40%);
  margin: 0 0 0.5rem;
}

.gemini-premium-title {
  text-wrap: balance;
  background: linear-gradient(120deg, #1a73e8 0%, #34a853 55%, var(--fg) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: clamp(1.65rem, 4vw, 2.15rem);
}

.gemini-premium-sub {
  max-width: 68ch;
  line-height: 1.65;
}

.gemini-premium-sub a {
  color: #1a73e8;
}

.gemini-premium-back {
  margin: 1rem 0 0;
  font-size: 0.9rem;
}

.gemini-premium-back a {
  color: var(--accent);
}

.gemini-table-wide {
  margin-top: 0.75rem;
}

.gemini-table td:last-child {
  min-width: 12rem;
}

.gemini-table-note {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.75rem;
}

.gemini-status {
  display: inline-block;
  padding: 0.12rem 0.45rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}

.gemini-status--dc {
  background: color-mix(in srgb, #ef4444, transparent 82%);
  color: color-mix(in srgb, #991b1b, var(--fg) 25%);
  border: 1px solid color-mix(in srgb, #ef4444, transparent 45%);
}

.gemini-status--dc-pre {
  background: color-mix(in srgb, #f97316, transparent 78%);
  color: color-mix(in srgb, #9a3412, var(--fg) 20%);
  border: 1px solid color-mix(in srgb, #f97316, transparent 40%);
}

.gemini-status--ga {
  background: color-mix(in srgb, #22c55e, transparent 82%);
  color: color-mix(in srgb, #166534, var(--fg) 30%);
  border: 1px solid color-mix(in srgb, #22c55e, transparent 45%);
}

.gemini-status--pv {
  background: color-mix(in srgb, #a855f7, transparent 78%);
  color: color-mix(in srgb, #581c87, var(--fg) 25%);
  border: 1px solid color-mix(in srgb, #a855f7, transparent 40%);
}

/* ChatGPT product column (Wikipedia-style: legacy = amber) */
.gemini-status--legacy {
  background: color-mix(in srgb, #eab308, transparent 78%);
  color: color-mix(in srgb, #854d0e, var(--fg) 20%);
  border: 1px solid color-mix(in srgb, #eab308, transparent 42%);
}

/* OpenAI page: model version “exhibit” frame */
.openai-version-exhibit {
  position: relative;
  margin: 1rem 0 1.75rem;
  padding: 1rem 1rem 0.25rem;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border));
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 6%, transparent) 0%, transparent 45%),
    color-mix(in srgb, var(--fg), transparent 94%);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--accent) 12%, transparent);
}

.openai-version-exhibit::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.06;
  background: repeating-linear-gradient(
    -18deg,
    transparent 0 9px,
    color-mix(in srgb, var(--fg), transparent 88%) 9px 10px
  );
}

.openai-version-exhibit > :first-child {
  position: relative;
  z-index: 1;
}

.gemini-bullet-list {
  margin: 0.5rem 0 0;
  padding-left: 1.25rem;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--muted);
  max-width: 72ch;
}

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

.gemini-disclaimer {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 1rem;
}

.gemini-subheading {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg);
  margin: 1.35rem 0 0.6rem;
}

/* Premium provider pages — theme variants (reuse .gemini-premium-* chrome) */
.provider-premium-page {
  container-type: inline-size;
}

body.provider-openai .gemini-premium-hero {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, #10a37f, transparent 88%) 0%,
    color-mix(in srgb, var(--bg), transparent 10%) 50%,
    color-mix(in srgb, #000000, transparent 90%) 100%
  );
  border-color: color-mix(in srgb, #10a37f, transparent 50%);
  box-shadow: 0 12px 40px color-mix(in srgb, #10a37f, transparent 88%);
}

body.provider-openai .gemini-premium-kicker {
  color: color-mix(in srgb, #10a37f, var(--fg) 35%);
}

body.provider-openai .gemini-premium-title {
  background: linear-gradient(120deg, #10a37f 0%, #74aa9c 50%, var(--fg) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.provider-openai .gemini-premium-sub a {
  color: #10a37f;
}

body.provider-anthropic .gemini-premium-hero {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, #d97757, transparent 86%) 0%,
    color-mix(in srgb, var(--bg), transparent 12%) 55%,
    color-mix(in srgb, #7c2d12, transparent 92%) 100%
  );
  border-color: color-mix(in srgb, #d97757, transparent 45%);
  box-shadow: 0 12px 40px color-mix(in srgb, #d97757, transparent 86%);
}

body.provider-anthropic .gemini-premium-kicker {
  color: color-mix(in srgb, #c2410c, var(--fg) 30%);
}

body.provider-anthropic .gemini-premium-title {
  background: linear-gradient(120deg, #ea580c 0%, #fbbf24 45%, var(--fg) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.provider-anthropic .gemini-premium-sub a {
  color: #ea580c;
}

/* Anthropic catalog: monospace API / cloud IDs in tables */
body.provider-anthropic .museum-table code {
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  font-size: 0.78em;
  font-weight: 500;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: color-mix(in srgb, var(--fg), transparent 94%);
  color: var(--fg);
  white-space: nowrap;
}

body.provider-xai .gemini-premium-hero {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, #7c3aed, transparent 84%) 0%,
    color-mix(in srgb, #1e1b4b, transparent 20%) 45%,
    color-mix(in srgb, #0f172a, transparent 15%) 100%
  );
  border-color: color-mix(in srgb, #a78bfa, transparent 40%);
  box-shadow: 0 12px 40px color-mix(in srgb, #7c3aed, transparent 85%);
}

body.provider-xai .gemini-premium-kicker {
  color: color-mix(in srgb, #c4b5fd, var(--fg) 25%);
}

body.provider-xai .gemini-premium-title {
  background: linear-gradient(120deg, #a78bfa 0%, #38bdf8 40%, #f472b6 85%, var(--fg) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.provider-xai .gemini-premium-sub a {
  color: #c4b5fd;
}

body.provider-arcee .gemini-premium-hero {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, #64748b, transparent 82%) 0%,
    color-mix(in srgb, var(--bg), transparent 10%) 50%,
    color-mix(in srgb, #334155, transparent 88%) 100%
  );
  border-color: color-mix(in srgb, #94a3b8, transparent 35%);
  box-shadow: 0 12px 40px color-mix(in srgb, #64748b, transparent 88%);
}

body.provider-arcee .gemini-premium-kicker {
  color: color-mix(in srgb, #94a3b8, var(--fg) 35%);
}

body.provider-arcee .gemini-premium-title {
  background: linear-gradient(120deg, #64748b 0%, #cbd5e1 55%, var(--fg) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.provider-arcee .gemini-premium-sub a {
  color: #94a3b8;
}

/* Museum: multi-provider catalog chips */
.museum-provider-catalog-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
  margin: 0.75rem 0 0;
  max-width: 52rem;
}

.museum-provider-catalog-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--fg);
  background: color-mix(in srgb, var(--fg), transparent 92%);
  border: 1px solid var(--border);
}

.museum-provider-catalog-chip:hover {
  filter: brightness(1.06);
}

.museum-provider-catalog-chip:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Model makers checklist — registry plaque + v1.0 tiles (museum.html) */
.museum-makers-registry {
  margin: 1.25rem 0 1.75rem;
  padding: 0;
  border-radius: 16px;
  position: relative;
  isolation: isolate;
  background:
    linear-gradient(145deg, color-mix(in srgb, #c9a227 12%, transparent) 0%, transparent 42%),
    linear-gradient(145deg, color-mix(in srgb, var(--accent) 8%, transparent) 0%, transparent 55%),
    color-mix(in srgb, var(--fg), transparent 93%);
  border: 1px solid color-mix(in srgb, #c9a227 28%, var(--border));
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--bg) 75%, transparent),
    0 18px 48px color-mix(in srgb, var(--bg) 55%, black 45%),
    inset 0 1px 0 color-mix(in srgb, #c9a227 12%, transparent);
}

.museum-makers-registry::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.09;
  background:
    repeating-linear-gradient(-12deg, transparent 0 2px, color-mix(in srgb, var(--fg), transparent 88%) 2px 3px);
  z-index: 0;
}

.museum-makers-registry-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1rem;
  padding: 1.15rem 1.15rem 0.85rem;
  position: relative;
  z-index: 1;
}

@media (max-width: 42rem) {
  .museum-makers-registry-head {
    grid-template-columns: 1fr;
  }
}

.museum-makers-registry-plaque {
  width: 3.25rem;
  height: 3.25rem;
  border: 2px solid color-mix(in srgb, #c9a227 55%, var(--border));
  border-radius: 10px;
  background:
    /* corner brackets */
    linear-gradient(#c9a227, #c9a227) 0 0 / 10px 2px no-repeat,
    linear-gradient(#c9a227, #c9a227) 0 0 / 2px 10px no-repeat,
    linear-gradient(#c9a227, #c9a227) 100% 0 / 10px 2px no-repeat,
    linear-gradient(#c9a227, #c9a227) 100% 0 / 2px 10px no-repeat,
    linear-gradient(#c9a227, #c9a227) 0 100% / 10px 2px no-repeat,
    linear-gradient(#c9a227, #c9a227) 0 100% / 2px 10px no-repeat,
    linear-gradient(#c9a227, #c9a227) 100% 100% / 10px 2px no-repeat,
    linear-gradient(#c9a227, #c9a227) 100% 100% / 2px 10px no-repeat,
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 70%);
  box-shadow: inset 0 0 20px color-mix(in srgb, #c9a227 12%, transparent);
}

.museum-makers-registry-intro {
  min-width: 0;
}

.museum-makers-registry-ribbon {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  color: color-mix(in srgb, #c9a227 85%, var(--muted));
}

.museum-makers-registry-kicker {
  color: var(--muted);
  font-weight: 600;
}

.museum-makers-registry-sep {
  color: color-mix(in srgb, var(--border), transparent 35%);
  font-weight: 400;
}

.museum-makers-registry-label {
  color: var(--fg);
}

.museum-makers-registry-ver {
  padding: 0.12rem 0.45rem;
  border-radius: 6px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--bg) 92%, black);
  background: linear-gradient(
    160deg,
    color-mix(in srgb, #c9a227 88%, white) 0%,
    color-mix(in srgb, #c9a227 55%, #b45309) 100%
  );
  box-shadow: 0 1px 0 color-mix(in srgb, #fef3c7 40%, transparent);
}

.museum-makers-registry-updated {
  margin-inline-start: auto;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.museum-makers-registry-title {
  margin-top: 0.15rem;
  margin-bottom: 0.45rem;
}

.museum-makers-registry-lede {
  margin-bottom: 0;
}

.museum-makers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11.5rem, 1fr));
  gap: 0.55rem;
  list-style: none;
  padding: 0.6rem 1rem 1.15rem;
  margin: 0;
  position: relative;
  z-index: 1;
}

@media (min-width: 52rem) {
  .museum-makers-grid {
    grid-template-columns: repeat(auto-fill, minmax(12.5rem, 1fr));
  }
}

.museum-maker-tile {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.35rem;
  padding: 0.6rem 0.65rem 0.55rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--border), transparent 35%);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--fg), transparent 88%) 0%, color-mix(in srgb, var(--bg) 70%, black) 120%);
  box-shadow:
    0 1px 0 color-mix(in srgb, var(--fg), transparent 92%),
    inset 0 1px 0 color-mix(in srgb, #c9a227 6%, transparent);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

@media (prefers-reduced-motion: reduce) {
  .museum-maker-tile {
    transition: none;
  }
}

.museum-maker-tile:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
  box-shadow:
    0 10px 30px color-mix(in srgb, var(--bg) 75%, black 25%),
    0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent);
}

.museum-maker-tile--exhibit {
  border-color: color-mix(in srgb, #a78bfa 38%, var(--border));
  background: linear-gradient(
    155deg,
    color-mix(in srgb, #a78bfa 10%, transparent) 0%,
    color-mix(in srgb, var(--fg), transparent 88%) 100%
  );
  box-shadow:
    0 1px 0 color-mix(in srgb, #a78bfa 25%, transparent),
    inset 0 0 0 1px color-mix(in srgb, #a78bfa 12%, transparent);
}

.museum-maker-tile--exhibit:hover {
  border-color: color-mix(in srgb, #a78bfa 55%, var(--border));
  box-shadow: 0 10px 28px color-mix(in srgb, #a78bfa 18%, transparent);
}

.museum-maker-name {
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--fg);
  text-wrap: balance;
}

.museum-maker-kind {
  align-self: flex-start;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.1rem 0.3rem;
  border-radius: 4px;
  color: color-mix(in srgb, #a78bfa 90%, white);
  background: color-mix(in srgb, #a78bfa 18%, transparent);
  border: 1px solid color-mix(in srgb, #a78bfa 35%, transparent);
}

.museum-maker-tile--catalog .museum-maker-kind {
  display: none;
}

.museum-maker-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.1rem;
  border-top: 1px solid color-mix(in srgb, var(--border), transparent 35%);
}

.museum-maker-ver {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.1rem 0.3rem;
  border-radius: 4px;
  color: color-mix(in srgb, var(--accent) 90%, white);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
}

/* Registry-only checklist — no full-line catalog page yet */
.museum-maker-ver--registry {
  font-weight: 600;
  color: var(--muted);
  background: color-mix(in srgb, var(--fg), transparent 92%);
  border-color: color-mix(in srgb, var(--border), transparent 10%);
}

/* Premium provider catalog shipped — badge links to full museum page */
a.museum-maker-ver--linked {
  text-decoration: none;
  cursor: pointer;
  color: color-mix(in srgb, #22c55e 95%, white);
  background: color-mix(in srgb, #22c55e 18%, transparent);
  border: 1px solid color-mix(in srgb, #22c55e 40%, transparent);
}

a.museum-maker-ver--linked:hover {
  color: color-mix(in srgb, #22c55e 100%, white);
  background: color-mix(in srgb, #22c55e 26%, transparent);
  border-color: color-mix(in srgb, #22c55e 52%, transparent);
}

a.museum-maker-ver--linked:focus-visible {
  outline: 2px solid color-mix(in srgb, #22c55e 70%, var(--accent));
  outline-offset: 2px;
}

.museum-maker-tile--catalog-linked {
  border-color: color-mix(in srgb, #22c55e 18%, var(--border));
}

.museum-maker-date {
  font-size: 0.68rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}

.museum-maker-tile--exhibit .museum-maker-ver:not(a) {
  color: color-mix(in srgb, #a78bfa 90%, white);
  background: color-mix(in srgb, #a78bfa 14%, transparent);
  border-color: color-mix(in srgb, #a78bfa 38%, transparent);
}

.museum-maker-tile--exhibit a.museum-maker-ver--linked {
  color: color-mix(in srgb, #22c55e 95%, white);
  background: color-mix(in srgb, #22c55e 18%, transparent);
  border-color: color-mix(in srgb, #22c55e 40%, transparent);
}

/* Print exclusion */
@media print {
  .featured-exhibit::before,
  .exhibit-new-badge {
    display: none;
  }
}

/* === PRINT STYLES === */
@media print {
  .skip-link,
  .page-loader,
  .sidebar,
  .top-bar,
  .search-overlay,
  .scroll-top-btn,
  .scroll-progress,
  body::before,
  body::after {
    display: none !important;
  }

  body {
    background: #fff;
    animation: none;
  }

  .content {
    max-width: none;
  }

  .project-card,
  .chat-link-card,
  .profile-section,
  .update-card-inner {
    box-shadow: none;
    border: 1px solid #ccc;
    background: #fff;
    color: #000;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    color: #666;
  }
}