:root {
  --bg: #fafaf7;
  --fg: #1a1a1a;
  --muted: #666;
  --accent: #5b3fa0;
  --warn: #c44;
  --border: #d8d8d2;
  --code-bg: #f0efe8;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: Georgia, "Iowan Old Style", serif;
  font-size: 17px;
  line-height: 1.55;
}
main {
  max-width: 720px;
  margin: 2.5rem auto;
  padding: 0 1.25rem 4rem;
}
h1 { font-size: 2.2rem; margin: 0 0 0.4rem; }
.lede { color: var(--muted); margin: 0 0 1rem; font-size: 1.05rem; }
.warning {
  background: #fff8e6;
  border-left: 3px solid var(--warn);
  padding: 0.6rem 0.9rem;
  margin: 1rem 0 1.5rem;
  font-size: 0.95rem;
}

textarea {
  width: 100%;
  font: inherit;
  padding: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: white;
  resize: vertical;
}
#word-count { color: var(--muted); font-size: 0.85rem; margin: 0.25rem 0 1rem; }
.checkbox { display: block; margin: 0.6rem 0; cursor: pointer; }
.checkbox input { margin-right: 0.4rem; }

button {
  font: inherit;
  background: var(--accent);
  color: white;
  border: 0;
  padding: 0.65rem 1.4rem;
  border-radius: 4px;
  cursor: pointer;
}
button:hover { filter: brightness(1.1); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

#form-error { color: var(--warn); margin: 0.5rem 0 0; min-height: 1.2em; }

#results {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
#reasoning-panel summary { cursor: pointer; font-weight: bold; color: var(--muted); }
#thinking {
  white-space: pre-wrap;
  background: var(--code-bg);
  padding: 0.8rem 1rem;
  font-size: 0.9rem;
  font-family: ui-monospace, "Cascadia Mono", Menlo, monospace;
  border-radius: 4px;
  margin: 0.5rem 0 1rem;
  max-height: 400px;
  overflow-y: auto;
}
#answer {
  background: white;
  padding: 1rem 1.2rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  white-space: pre-wrap;
  font-size: 1.05rem;
}

#thumbs { margin: 1rem 0; }
#thumbs button { background: transparent; color: var(--fg); font-size: 1.4rem; padding: 0.3rem 0.6rem; }
#thumbs button.selected { background: var(--accent); color: white; }

#survey-form { margin-top: 0.6rem; }
#survey-form label { display: block; margin: 0.7rem 0; }
#survey-form input[type="number"] { width: 6rem; padding: 0.3rem; font: inherit; }
#survey-form fieldset { border: 1px solid var(--border); padding: 0.5rem 0.8rem; margin: 0.7rem 0; }
#survey-skip { background: transparent; color: var(--muted); margin-left: 0.5rem; }

footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}