* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #172033;
  --muted: #536174;
  --border: #d9e0e8;
  --accent: #1f6feb;
  --accent-dark: #174ea6;
  --code: #111827;
  --code-bg: #eef2f7;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.site-header {
  background: #0f172a;
  color: #ffffff;
  padding: 32px 20px;
}

.site-header > div,
.layout {
  max-width: 1120px;
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 8px;
  color: #b7c7df;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 12px;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.05;
}

.lede {
  max-width: 820px;
  margin-bottom: 0;
  color: #d9e6f8;
  font-size: 1.05rem;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 20px;
  padding: 24px 20px 48px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.panel.wide {
  grid-column: 1 / -1;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

label {
  font-weight: 700;
  color: var(--text);
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  background: #fff;
}

textarea {
  resize: vertical;
}

.actions,
.output-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.actions {
  margin-top: 16px;
  justify-content: flex-start;
}

button {
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
}

button:hover,
button:focus-visible {
  background: var(--accent-dark);
}

button.secondary,
.copy-button {
  background: #e8eef7;
  color: var(--accent-dark);
}

button.secondary:hover,
button.secondary:focus-visible,
.copy-button:hover,
.copy-button:focus-visible {
  background: #d7e4f6;
}

.output-group + .output-group {
  margin-top: 18px;
}

.output-title h3 {
  margin-bottom: 8px;
}

pre {
  min-height: 96px;
  max-height: 360px;
  overflow: auto;
  margin: 0;
  padding: 14px;
  border-radius: 6px;
  background: var(--code-bg);
  color: var(--code);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

code {
  background: var(--code-bg);
  padding: 2px 5px;
  border-radius: 4px;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

ul {
  padding-left: 1.2rem;
}

li + li {
  margin-top: 6px;
}

@media (max-width: 820px) {
  .layout,
  .notes-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    padding: 28px 18px;
  }

  .layout {
    padding: 18px;
  }
}

.status-message {
  margin: 0 0 8px;
  color: var(--muted);
}

.status-message.error {
  color: #9f1239;
}

.status-message.success {
  color: #166534;
}