:root {
  --bg: #f4f1ea;
  --ink: #1c1917;
  --muted: #78716c;
  --panel: #fffcf7;
  --line: #d6d3d1;
  --accent: #0f766e;
  --danger: #b91c1c;
  --error: #9f1239;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, #efe8d8, transparent 40%),
    linear-gradient(180deg, #f7f3eb, var(--bg));
  min-height: 100vh;
}
body.auth {
  display: grid;
  place-items: center;
}
a { color: var(--accent); }
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255,252,247,0.85);
  backdrop-filter: blur(6px);
}
.layout {
  max-width: 880px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 10px 30px rgba(28,25,23,0.04);
}
h1, h2, h3 { margin-top: 0; letter-spacing: -0.02em; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; }
label, fieldset {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
fieldset {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}
.check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}
input[type="text"], input[type="password"], textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  background: #fff;
}
button {
  appearance: none;
  border: 0;
  background: var(--accent);
  color: white;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font: inherit;
  cursor: pointer;
}
button.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
button.danger { background: var(--danger); }
.meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}
.meta div {
  padding: 0.6rem 0.75rem;
  background: #faf7f2;
  border-radius: 8px;
}
.meta dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.meta dd { margin: 0.2rem 0 0; }
.answer {
  white-space: pre-wrap;
  background: #faf7f2;
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
}
.flash { list-style: none; padding: 0; }
.flash .error { color: var(--error); }
.error { color: var(--error); }