:root {
  --radius: 16px;
  --gap: 16px;
  --maxw: 980px;

  --logo-image: url('../images/neurov3-logo.png');

  --light-bg: #ffe0ef;
  --light-text: #222222;
  --light-muted: #5b3f2e;
  --light-border: #c9c6e0;
  --light-card: #fea8ae;
  --light-accent: #7cdbd3;
  --light-accent-contrast: #ffffff;
  --light-shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.06);
  --light-link: #c72e49;
  --light-success: #97d091;
  --light-warning: #f5c356;
  --light-danger: #c72e49;
  --light-charcoal: #222222;
  --light-neutral: #f58796;
  --light-bg-accent-radial-start: rgba(124, 219, 211, 0.1);
  --light-logo-accent-tint: #bdebe7;
  --light-accent-border: #bdebe7;
  --light-accent-hover: #6bcfc6;
  --light-thumb-bg: #f2faf9;
  --light-link-underline: rgba(199, 46, 73, 0.5);
  --light-link-hover: #d45165;
  --light-focus-outline: rgba(199, 46, 73, 0.85);
  --light-hint-bg: #fea8ae;
  --light-hint-border: rgba(124, 219, 211, 0.1);
  --light-neutral-border: #c1a987;
  --light-neutral-hover: #ecdcc3;
  --light-surface-neutral-bg: #f7efe6;

  --dark-bg: #110d0e;
  --dark-text: #ffffff;
  --dark-muted: #d9d9d9;
  --dark-border: #4a2f2e;
  --dark-card: #91394a;
  --dark-accent: #390014;
  --dark-accent-contrast: #ffffff;
  --dark-shadow: 0 1px 2px rgba(18, 18, 18, 0.6), 0 8px 24px rgba(18, 18, 18, 0.5);
  --dark-link: #ff8a9a;
  --dark-success: #63a861;
  --dark-warning: #e9783a;
  --dark-danger: #e24d5e;
  --dark-charcoal: #2a2a2a;
  --dark-neutral: #b58e79;
  --dark-bg-accent-radial-start: rgba(107, 31, 44, 0.25);
  --dark-logo-accent-tint: #fea8ae;
  --dark-accent-border: #5a1a26;
  --dark-accent-hover: #7a2634;
  --dark-thumb-bg: #5a1a26;
  --dark-link-underline: rgba(255, 138, 154, 0.6);
  --dark-link-hover: #fea8ae;
  --dark-focus-outline: rgba(226, 77, 94, 0.85);
  --dark-hint-bg: #5a1a26;
  --dark-hint-border: rgba(74, 47, 46, 0.8);
  --dark-neutral-border: #8e6f5d;
  --dark-neutral-hover: #c9ad97;
  --dark-surface-neutral-bg: #1c1614;
}

@font-face {
  font-family: 'First Coffee';
  src: url('../fonts/First Coffee.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

html[data-theme='light'] {
  --bg: var(--light-bg);
  --text: var(--light-text);
  --muted: var(--light-muted);
  --border: var(--light-border);
  --card: var(--light-card);
  --accent: var(--light-accent);
  --accent-contrast: var(--light-accent-contrast);
  --shadow: var(--light-shadow);
  --link: var(--light-link);
  --success: var(--light-success);
  --warning: var(--light-warning);
  --danger: var(--light-danger);
  --charcoal: var(--light-charcoal);
  --neutral: var(--light-neutral);
  --bg-accent-radial-start: var(--light-bg-accent-radial-start);
  --logo-accent-tint: var(--light-logo-accent-tint);
  --accent-border: var(--light-accent-border);
  --accent-hover: var(--light-accent-hover);
  --thumb-bg: var(--light-thumb-bg);
  --link-underline: var(--light-link-underline);
  --link-hover: var(--light-link-hover);
  --focus-outline: var(--light-focus-outline);
  --hint-bg: var(--light-hint-bg);
  --hint-border: var(--light-hint-border);
  --neutral-border: var(--light-neutral-border);
  --neutral-hover: var(--light-neutral-hover);
  --surface-neutral-bg: var(--light-surface-neutral-bg);
  --logo-image: url('../images/neurov3-logo.png');
}

html[data-theme='dark'] {
  --bg: var(--dark-bg);
  --text: var(--dark-text);
  --muted: var(--dark-muted);
  --border: var(--dark-border);
  --card: var(--dark-card);
  --accent: var(--dark-accent);
  --accent-contrast: var(--dark-accent-contrast);
  --shadow: var(--dark-shadow);
  --link: var(--dark-link);
  --success: var(--dark-success);
  --warning: var(--dark-warning);
  --danger: var(--dark-danger);
  --charcoal: var(--dark-charcoal);
  --neutral: var(--dark-neutral);
  --bg-accent-radial-start: var(--dark-bg-accent-radial-start);
  --logo-accent-tint: var(--dark-logo-accent-tint);
  --accent-border: var(--dark-accent-border);
  --accent-hover: var(--dark-accent-hover);
  --thumb-bg: var(--dark-thumb-bg);
  --link-underline: var(--dark-link-underline);
  --link-hover: var(--dark-link-hover);
  --focus-outline: var(--dark-focus-outline);
  --hint-bg: var(--dark-hint-bg);
  --hint-border: var(--dark-hint-border);
  --neutral-border: var(--dark-neutral-border);
  --neutral-hover: var(--dark-neutral-hover);
  --surface-neutral-bg: var(--dark-surface-neutral-bg);
  --logo-image: url('../images/evilv3-logo.png');
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, Noto Sans, 'Helvetica Neue', Arial, 'Apple Color Emoji', 'Segoe UI Emoji';
  color: var(--text);
  background: radial-gradient(
      farthest-corner at 50% -200px,
      var(--bg-accent-radial-start),
      transparent
    ),
    var(--bg);
  background-repeat: no-repeat;
}

.wrap {
  max-width: var(--maxw);
  min-height: calc(100vh - 24px);
  margin: 0 auto;
  padding: 24px;
  padding-bottom: calc(24px + 80px + var(--gap));
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  margin-bottom: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 64px;
  height: 64px;
  border-radius: 10px;
  background: var(--logo-image) center / contain no-repeat,
    linear-gradient(135deg, var(--accent), var(--logo-accent-tint));
  box-shadow: var(--shadow);
}

h1 {
  font-size: clamp(1.2rem, 1rem + 1.8vw, 2rem);
  margin: 0;
  font-weight: 800;
  font-family: 'First Coffee', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Ubuntu, Cantarell, Noto Sans, 'Helvetica Neue', Arial, 'Apple Color Emoji',
    'Segoe UI Emoji';
}

.toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: background-color 0.2s ease, filter 0.2s ease;
  flex-direction: column;
}

.btn:hover {
  filter: brightness(1.02);
}

.btn.primary {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent-border);
}

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

.lede {
  color: var(--muted);
  margin: 8px 0 24px;
  line-height: 1.6;
}

h2 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 24px 0 8px;
  color: var(--muted);
  text-transform: uppercase;
}

h3 {
  font-size: 1.5rem;
  margin: 0;
  font-family: 'First Coffee', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Ubuntu, Cantarell, Noto Sans, 'Helvetica Neue', Arial, 'Apple Color Emoji',
    'Segoe UI Emoji';
}

h4 {
  font-size: 1.2rem;
  margin: 0;
  font-family: 'First Coffee', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Ubuntu, Cantarell, Noto Sans, 'Helvetica Neue', Arial, 'Apple Color Emoji',
    'Segoe UI Emoji';
}

.hint {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.grid {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  overflow: clip;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: row;
  gap: 0;
  min-height: 140px;
  width: 100%;
  position: relative;
  transition: transform 0.2s ease, filter 0.2s ease;
  content-visibility: auto;
  contain-intrinsic-size: 140px;
}

.card:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.card .thumb {
  width: 120px;
  height: 120px;
  min-width: 120px;
  max-width: 120px;
  flex-shrink: 0;
  background: var(--thumb-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border);
  border-radius: 12px;
  border: 1px solid var(--border);
  margin: 10px;
  overflow: hidden;
  padding: 0;
}

.card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 8px;
}

.card .thumb span {
  color: var(--muted);
  font-size: 0.8rem;
  padding: 8px;
  text-align: center;
}

.card .body {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  justify-content: space-evenly;
  flex: 1;
  min-height: 0;
}

.card .title {
  font-weight: 700;
}

.card .desc {
  color: var(--muted);
  line-height: 1.5;
}

.card a.stretch {
  position: relative;
}

.card a.stretch::after {
  content: '';
  position: absolute;
  inset: 0;
}

footer {
  color: var(--muted);
  font-size: 0.7rem;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  padding: 8px;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.04);
  margin: 36px 0 0;
}

.footer-content {
  text-align: center;
  width: 100%;
}

.footer-disclaimer {
  font-size: 0.5rem;
  margin-top: 2px;
  opacity: 0.6;
}

.footer-attribution {
  position: absolute;
  right: 6px;
  bottom: 6px;
  font-size: 0.5rem;
  text-align: right;
  opacity: 0.6;
}

.footer-attribution div {
  margin-bottom: 2px;
}

.footer-attribution div:last-child {
  margin-bottom: 0;
}

a,
a:visited {
  color: var(--link);
  text-decoration-color: var(--link-underline);
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: var(--link-hover);
}

.footer-attribution a {
  color: inherit;
  text-decoration: underline;
}

.footer-attribution a:hover {
  opacity: 0.7;
}

a:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--focus-outline);
  outline-offset: 2px;
}

.hint {
  background: var(--hint-bg);
  border: 1px solid var(--hint-border);
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.btn.neutral {
  background: var(--neutral);
  color: var(--text);
  border-color: var(--neutral-border);
}

.btn.neutral:hover {
  background: var(--neutral-hover);
}

.surface-neutral {
  background: var(--surface-neutral-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.expander-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  margin: 16px 0 24px;
  align-items: start;
  justify-content: center;
}

.instructions {
  display: grid;
  gap: 6px;
  margin: 8px 0 12px;
}

.instructions .step {
  color: var(--text);
  background: transparent;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.expand-indicator {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 6px;
  font-weight: 500;
}

.expander-head .actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.expander-head .actions .btn {
  font-size: 0.9rem;
  padding: 6px 12px;
  flex: 1;
}

@media (max-width: 900px) and (min-width: 701px) {
  .card .thumb {
    width: 100px;
    height: 100px;
    min-width: 100px;
    max-width: 100px;
  }
}

@media (max-width: 700px) {
  .expander-grid {
    grid-template-columns: 1fr;
  }

  .card {
    flex-direction: row;
    min-height: auto;
    padding: 16px;
    gap: 12px;
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .card .thumb {
    width: 64px;
    height: 64px;
    min-width: 64px;
    max-width: 64px;
    flex-shrink: 0;
    border-right: none;
    border-radius: 8px;
    border: 1px solid var(--border);
    margin: 0;
  }

  .card .body {
    padding: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    min-width: calc(100% - 76px);
    gap: 8px;
  }

  .card .body .title {
    margin: 0;
    align-self: flex-start;
  }

  .card .body .desc,
  .card .body .actions,
  .card .body .expand-indicator {
    width: calc(100vw - 32px - 32px);
    max-width: calc(100% + 76px);
    margin-left: -76px;
  }

  .card .body .desc {
    padding-top: 51px;
  }

  .card .body .actions {
    margin-top: 4px;
  }

  .card .body .expand-indicator {
    margin-top: 0;
  }

  .expander-panel .body .desc,
  .expander-panel .body .actions {
    width: 100%;
    max-width: 100%;
    margin-left: 0;
  }

  footer {
    font-size: 0.75rem;
    padding: 10px 12px;
  }

  .footer-disclaimer {
    font-size: 0.65rem;
  }

  .footer-attribution {
    font-size: 0.65rem;
    right: 12px;
    bottom: 10px;
  }
}

@media (max-width: 600px) {
  header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .brand {
    justify-content: center;
  }

  .toolbar {
    justify-content: center;
    flex-wrap: wrap;
  }

  .btn {
    flex: 1;
    min-width: 120px;
  }
}

@media (max-width: 400px) {
  .toolbar {
    flex-direction: column;
    gap: 8px;
  }

  .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  footer {
    font-size: 0.7rem;
    padding: 8px 10px;
  }

  .footer-disclaimer {
    font-size: 0.6rem;
  }

  .footer-attribution {
    font-size: 0.6rem;
    right: 10px;
    bottom: 8px;
    max-width: calc(100% - 120px);
  }

  .footer-attribution div {
    margin-bottom: 1px;
  }
}

.expander {
  display: grid;
  gap: 8px;
  align-content: start;
}

.expander.expanded {
  grid-column: 1 / -1;
}

.expander-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  justify-content: center;
  padding: 12px 16px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: filter 0.2s ease;
}

.expander-btn .expander-thumb {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
}

.expander-btn .expander-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 4px;
}

.expander-panel {
  display: block;
  animation: slideDown 160ms ease-out;
}

.expander-panel[hidden] {
  display: none;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }

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

.expander-panel .body {
  padding: 16px;
}

.expander-panel .title {
  font-size: 1.05rem;
}

.expander-panel .desc {
  margin-bottom: 6px;
}

.instructions {
  display: grid;
  gap: 6px;
  margin: 8px 0 12px;
}

.instructions .step {
  color: var(--text);
  background: transparent;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.expander-btn,
.expander-panel .thumb {
  border-color: var(--accent-border);
}

.expander-btn:hover {
  filter: brightness(1.02);
}

.expander-head {
  cursor: pointer;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.expander-head:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.expander-head[aria-expanded='true'] {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.expander-head .body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.expander-head .actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.expander-head .actions .btn {
  font-size: 0.9rem;
  padding: 6px 12px;
  flex: 1;
}

.expander.expanded .expander-panel {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  border-top: none;
  margin-top: -1px;
}

.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-radius: 50%;
  border-top-color: var(--accent);
  animation: spin 1s ease-in-out infinite;
}

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

.error-state {
  color: var(--danger);
  text-align: center;
  padding: 20px;
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  background: rgba(199, 46, 73, 0.1);
}

.card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 8px;
  transition: opacity 0.2s ease;
}

.card .thumb img[loading] {
  opacity: 0.7;
}

.card.skeleton {
  pointer-events: none;
  filter: none;
}

.card.skeleton .thumb,
.card.skeleton .title,
.card.skeleton .desc {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: linear-gradient(
    100deg,
    rgba(255, 255, 255, 0.15) 30%,
    rgba(255, 255, 255, 0.28) 50%,
    rgba(255, 255, 255, 0.15) 70%
  );
  background-size: 200% 100%;
  animation: shimmer 1.2s ease-in-out infinite;
}

.card.skeleton .thumb {
  border: 1px solid var(--border);
}

.card.skeleton .title {
  height: 20px;
  width: 45%;
  border-radius: 6px;
}

.card.skeleton .desc {
  height: 14px;
  width: 80%;
  margin-top: 8px;
  border-radius: 6px;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}
pre {
  background-color: var(--surface);
  color: var(--text);
  padding: 4px;
  border-radius: 2px;
  overflow-x: auto;
  margin-bottom: 4px;
}

code {
  font-family: 'Fira Code', 'Courier New', monospace;
  font-size: 1em;
  line-height: 1.4;
  color: var(--text);
}