:root {
  color-scheme: light;
  --bg: #f6f1e8;
  --panel: rgba(255, 250, 242, 0.92);
  --ink: #1d1d1b;
  --muted: #5f5a54;
  --line: rgba(29, 29, 27, 0.12);
  --accent: #c65d1e;
  --accent-dark: #8a3810;
  --shadow: 0 18px 48px rgba(69, 39, 18, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(198, 93, 30, 0.12), transparent 34%),
    linear-gradient(180deg, #f9f4ec 0%, #f0e6d7 100%);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 64px;
}

.hero {
  margin-bottom: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 248, 238, 0.72);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-dark);
  font-size: 0.78rem;
}

h1,
h2 {
  margin: 0;
  font-weight: 600;
}

h1 {
  max-width: 12ch;
  font-size: clamp(2.5rem, 5vw, 4.8rem);
  line-height: 0.98;
}

.lede {
  max-width: 65ch;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.panel {
  margin-top: 20px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

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

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  background: var(--accent);
  color: #fff8f0;
  font: inherit;
  cursor: pointer;
}

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

label {
  display: block;
  margin-top: 16px;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  margin-top: 8px;
  border: 1px solid rgba(29, 29, 27, 0.18);
  border-radius: 14px;
  padding: 12px 14px;
  background: #fffdf9;
  color: var(--ink);
  font: inherit;
}

textarea,
pre {
  font-family: "Courier New", monospace;
}

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

.checkbox input {
  width: 20px;
  margin: 0;
}

.hint {
  color: var(--muted);
}

pre {
  overflow: auto;
  margin: 16px 0 0;
  padding: 16px;
  border-radius: 18px;
  background: #221d18;
  color: #fef3df;
  min-height: 120px;
}

code {
  color: var(--accent-dark);
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 20px, 1120px);
    padding-top: 20px;
  }

  .panel-header {
    flex-direction: column;
    align-items: flex-start;
  }

  button {
    width: 100%;
  }
}