* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary: #4f46e5;
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --green: #16a34a;
  --red: #dc2626;
  --border: #e2e8f0;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  max-width: 480px;
  margin: 0 auto;
  padding-bottom: 72px;
}
#app { padding: 16px; min-height: calc(100vh - 72px); }
.view.hidden, .hidden { display: none !important; }

.bottom-tab {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  background: var(--card);
  border-top: 1px solid var(--border);
  max-width: 480px;
  margin: 0 auto;
}
.tab {
  flex: 1;
  padding: 10px 4px;
  border: none;
  background: none;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
}
.tab.active { color: var(--primary); font-weight: 600; }

button.primary, .primary {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 15px;
  text-align: center;
  cursor: pointer;
  text-decoration: none;
}
input, textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 16px;
  margin: 6px 0;
}
textarea { min-height: 120px; resize: vertical; }
.form label { display: block; font-size: 13px; color: var(--muted); margin-top: 8px; }