:root {
  --blue: #4a72b8;
  --blue-dark: #355a99;
  --text: #1f2937;
  --muted: #6b7280;
  --bg: #f5f7fb;
  --border: #d1d5db;
  --warn: #b45309;
  --warn-bg: #fef3c7;
  --good: #047857;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.4;
}

.banner {
  background: var(--blue);
  color: white;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.banner h1 {
  font-size: 1.2rem;
  margin: 0;
}
.banner a { color: white; text-decoration: underline; }
.user { font-size: 0.9rem; }

main { padding: 1.5rem; }
.container {
  max-width: 1100px;
  margin: 0 auto;
  background: white;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
}

.centered {
  display: flex;
  justify-content: center;
  margin-top: 3rem;
}
.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  min-width: 360px;
  max-width: 520px;
}

h2 { margin-top: 0; }
.hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.5rem 0 1rem;
}
.hint.warn {
  color: var(--warn);
  background: var(--warn-bg);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.5rem;
  margin: 1rem 0;
}
legend {
  font-weight: 600;
  padding: 0 0.5rem;
}

.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }

label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  color: var(--muted);
  gap: 0.25rem;
}
input, select {
  font-size: 1rem;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: white;
  color: var(--text);
}
input:focus, select:focus {
  outline: 2px solid var(--blue);
  outline-offset: 1px;
}
input[readonly] {
  background: #f3f4f6;
  color: #374151;
}

table.items {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
}
table.items th, table.items td {
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}
table.items th { background: #f3f4f6; }
table.items td input {
  width: 100%;
  padding: 0.4rem;
}
table.items .desc { width: 100%; }
table.items .money { text-align: right; }
table.items tfoot th { font-weight: 600; }
table.items input.total { font-weight: 700; }

table.kv {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0 1rem;
}
table.kv th {
  text-align: left;
  padding: 0.5rem 0.75rem 0.5rem 0;
  width: 30%;
  font-weight: 600;
  color: var(--muted);
  vertical-align: top;
}
table.kv td {
  padding: 0.5rem 0;
}

.actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 1rem;
}
.btn-primary, .btn-secondary {
  font-size: 1rem;
  padding: 0.65rem 1.25rem;
  border-radius: 6px;
  border: 0;
  cursor: pointer;
  display: inline-block;
  text-decoration: none;
}
.btn-primary {
  background: var(--blue);
  color: white;
}
.btn-primary:hover { background: var(--blue-dark); }
.btn-secondary {
  background: white;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: #f3f4f6; }

.btn-google {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: white;
  color: #3c4043;
  border: 1px solid #dadce0;
  border-radius: 6px;
  padding: 0.6rem 1rem;
  font-weight: 500;
  text-decoration: none;
  font-size: 0.95rem;
}
.btn-google:hover { background: #f8f9fa; }

code {
  background: #f3f4f6;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  font-size: 0.95em;
}