:root {
  --bg: #f4efe5;
  --paper: #fffdf8;
  --ink: #1d1b19;
  --muted: #6a6257;
  --line: #d9cfbf;
  --accent: #b2472e;
  --accent-strong: #8e311b;
  --good: #1f6a43;
  --warn: #8b5e10;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(178, 71, 46, 0.15), transparent 28%),
    linear-gradient(180deg, #f7f1e8 0%, #f1ebdf 100%);
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
}

a {
  color: inherit;
}

.shell-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.82);
  backdrop-filter: blur(8px);
}

.shell-header nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.wordmark {
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.shell-body {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

.panel,
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.25rem;
  box-shadow: 0 18px 40px rgba(40, 24, 14, 0.08);
}

.hero {
  padding: 2rem;
}

.card + .card {
  margin-top: 1rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-size: 0.8rem;
}

.button {
  display: inline-block;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  padding: 0.8rem 1.2rem;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary {
  background: #39444f;
}

.button.danger {
  background: #7c2418;
}

.actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.mock-banner {
  color: var(--warn);
  font-weight: 700;
}

.stack {
  display: grid;
  gap: 0.75rem;
}

input,
textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  font: inherit;
}

pre,
code {
  font-family: "SFMono-Regular", "Menlo", monospace;
}

.status.good {
  color: var(--good);
}

.status.warn {
  color: var(--warn);
}

@media (max-width: 700px) {
  .shell-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }
}