:root {
  color-scheme: light;
  --bg: #f3f4f6;
  --card: #ffffff;
  --ink: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --primary: #111827;
  --primary-ink: #ffffff;
  --soft: #f9fafb;
  --focus: #2563eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #e0f2fe 0, transparent 34rem), var(--bg);
  color: var(--ink);
}

.shell {
  width: min(100%, 52rem);
  margin: 0 auto;
  padding: calc(1rem + env(safe-area-inset-top)) 1rem calc(2rem + env(safe-area-inset-bottom));
}

.card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  box-shadow: 0 1.5rem 4rem rgba(15, 23, 42, 0.08);
  padding: 1.25rem;
  margin: 1rem 0;
  backdrop-filter: blur(1rem);
}

.hero {
  padding-top: 1.5rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

h1,
h2 {
  margin: 0;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2rem, 9vw, 4rem);
  line-height: 0.98;
}

h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.lede,
.card p,
.steps li,
.fine-print {
  color: var(--muted);
  line-height: 1.55;
}

.lede {
  font-size: 1.05rem;
  margin: 1rem 0 1.25rem;
}

.actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.model-actions {
  margin: -0.2rem 0 0.75rem;
}

.hidden {
  display: none !important;
}

.button {
  appearance: none;
  border: 1px solid var(--primary);
  border-radius: 999px;
  padding: 0.85rem 1rem;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  min-height: 3rem;
  cursor: pointer;
}

.button.primary {
  background: var(--primary);
  color: var(--primary-ink);
}

.button.secondary {
  background: var(--card);
  color: var(--primary);
}

.button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.button:focus-visible,
textarea:focus-visible,
pre:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus), transparent 60%);
  outline-offset: 3px;
}

.fine-print {
  font-size: 0.9rem;
  margin-bottom: 0;
}

.steps ol {
  margin: 0;
  padding-left: 1.25rem;
}

.steps li + li {
  margin-top: 0.5rem;
}

.composer label,
.llm-settings label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
  font: inherit;
  background: var(--soft);
  color: var(--ink);
  margin-top: 0.4rem;
}

.checkbox-row {
  align-items: center;
  display: flex !important;
  gap: 0.7rem;
  margin-top: 0.25rem;
}

.checkbox-row input {
  flex: 0 0 auto;
  margin: 0;
  width: auto;
}

textarea {
  resize: vertical;
  margin-bottom: 0.75rem;
}

.examples {
  display: grid;
  gap: 0.5rem;
  margin-top: 1rem;
}

.example-button {
  text-align: left;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--ink);
  border-radius: 1rem;
  padding: 0.85rem;
  font: inherit;
  cursor: pointer;
}

pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: #0f172a;
  color: #e5e7eb;
  border-radius: 1rem;
  padding: 1rem;
  overflow-x: auto;
  min-height: 8rem;
}

@media (min-width: 700px) {
  .card {
    padding: 1.75rem;
  }

  .field-grid {
    grid-template-columns: 1fr 1fr;
  }
}