:root {
  --bg: #0f172a;
  --fg: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --card: #1e293b;
  --border: #334155;
  --error: #fca5a5;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

#app {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem;
}

h1 { font-size: 1.5rem; margin: 0.5rem 0; }
h2 { font-size: 1.25rem; }

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

label { display: block; margin-bottom: 0.25rem; }

input, button {
  font-size: 1rem;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
}

input {
  width: 100%;
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
}

#unlock-btn {
  margin-top: 0.75rem;
  width: 100%;
  background: var(--accent);
  color: #04283a;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

#gate-error { color: var(--error); margin-top: 0.75rem; }

nav#category-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.category-btn {
  min-height: 44px;
  padding: 0.5rem 1rem;
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
}

.category-btn:hover { border-color: var(--accent); }

.situation-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1rem;
}

.situation-card h2 { margin-top: 0; }

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

ol.steps { padding-left: 1.5rem; margin: 0.5rem 0 0; }
ol.steps li { margin-bottom: 0.5rem; }

.offline-status {
  margin: 1.5rem 0 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.offline-status.ready { color: #86efac; }
.offline-status.ready::before { content: "\2713\00a0"; }
.offline-status.pending { color: var(--muted); }
.offline-status.error { color: var(--error); }