:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --primary: #155eef;
  --text: #1d2939;
  --muted: #667085;
  --border: #d0d5dd;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, sans-serif;
  background: radial-gradient(circle at top, #e9f0ff, var(--bg));
  color: var(--text);
}
.app-shell { max-width: 980px; margin: 0 auto; padding: 24px 16px 40px; }
.app-header { text-align: center; margin-bottom: 16px; }
.app-header h1 { margin: 0; font-size: 2rem; }
.app-header p { margin: 8px 0 0; color: var(--muted); }
.container { background: rgba(255,255,255,.65); border: 1px solid #e4e7ec; border-radius: 20px; padding: 20px; backdrop-filter: blur(6px); }
.step.hidden { display: none; }
.grid-menu { display: grid; grid-template-columns: repeat(auto-fill,minmax(210px,1fr)); gap: 12px; margin: 14px 0; }
.card-btn {
  border: 1px solid #dbe4ff; background: linear-gradient(180deg, #fff, #f7f9ff); border-radius: 14px;
  padding: 14px; text-align: left; cursor: pointer; display: flex; gap: 10px; align-items: center; color: #174294;
}
.card-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(21,94,239,.12); }
.card-btn .material-icons-round { font-size: 20px; }
.btn-voltar, .btn-primario, .btn-secundario {
  border: 0; border-radius: 10px; padding: 10px 14px; cursor: pointer; font-weight: 600;
}
.btn-voltar { background: #eef2ff; color: #1d4ed8; margin-bottom: 8px; }
.btn-primario { background: var(--primary); color: #fff; }
.btn-secundario { background: #e4e7ec; color: #344054; }
.panel { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 14px; margin: 12px 0; }
.inline-group { display: flex; gap: 8px; flex-wrap: wrap; }
input, select, button { font: inherit; }
input, select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; margin: 6px 0 12px;
}
.resumo { color: var(--muted); margin-top: 0; }
#video-scanner { width: 100%; border-radius: 10px; background: #000; min-height: 180px; }
small { color: var(--muted); }
.status-chip { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: .8rem; }
.ok { background: #dcfce7; color: #166534; }
.warn { background: #fee2e2; color: #b91c1c; }