:root {
  color-scheme: light dark;
  --bg: #f6f5f2;
  --card: #ffffff;
  --ink: #1e1c1a;
  --muted: #6b6560;
  --accent: #8a5a3f;
  --accent-ink: #ffffff;
  --border: #e5e1da;
  --off: #cfc9c0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171512;
    --card: #221f1b;
    --ink: #f1ede6;
    --muted: #a89f93;
    --accent: #c98a5f;
    --accent-ink: #171512;
    --border: #37322b;
    --off: #45403a;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 640px; margin: 0 auto; padding: 32px 20px 80px; }
header h1 { margin: 0 0 4px; font-size: 1.6rem; letter-spacing: -0.01em; }
.sub { color: var(--muted); margin: 0 0 24px; }

section { display: block; }
section[hidden] { display: none; }

.member-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.member-btn {
  padding: 12px 18px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--ink);
  font-size: 1rem;
  cursor: pointer;
}
.member-btn:hover { border-color: var(--accent); }

form { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
input[type="text"] {
  flex: 1;
  min-width: 140px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--ink);
  font-size: 1rem;
}
button {
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 1rem;
  cursor: pointer;
}
button:hover { opacity: 0.9; }
.link-btn {
  background: none;
  color: var(--muted);
  padding: 4px 0;
  text-decoration: underline;
  font-size: 0.9rem;
}

.error { color: #c0392b; margin-top: 10px; }

.dash-header { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }

.category-list { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
.category-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.category-card.not-allowed { opacity: 0.55; }
.category-name { font-weight: 600; }
.category-desc { color: var(--muted); font-size: 0.9rem; margin-top: 2px; }
.category-hint { color: var(--muted); font-size: 0.85rem; }

.switch { position: relative; display: inline-block; width: 44px; height: 26px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; inset: 0; cursor: pointer;
  background: var(--off); border-radius: 999px; transition: 0.15s;
}
.slider::before {
  content: ""; position: absolute; height: 20px; width: 20px; left: 3px; top: 3px;
  background: var(--card); border-radius: 50%; transition: 0.15s;
}
input:checked + .slider { background: var(--accent); }
input:checked + .slider::before { transform: translateX(18px); }
input:disabled + .slider { cursor: not-allowed; }

#admin-section { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); }
.admin-member { margin-bottom: 24px; }
.admin-member h4 { margin: 0 0 8px; }
.admin-grid { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; }
.admin-grid label { display: flex; align-items: center; gap: 8px; font-size: 0.92rem; }