:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --line: #d9dee7;
  --text: #1f2937;
  --muted: #697386;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --danger: #b42318;
  --warn-bg: #fff7d6;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, "Malgun Gothic", sans-serif;
  font-size: 14px;
}
a { color: var(--accent-strong); text-decoration: none; }
button, .button-link {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font: inherit;
}
button.primary { background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 700; }
input, select {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 7px 9px;
  background: #fff;
  color: var(--text);
  font: inherit;
}
.topbar {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 800; color: var(--text); }
.topbar nav { display: flex; gap: 18px; align-items: center; }
.page { width: 100%; max-width: none; margin: 0; padding: 24px; }
.band, .doc-header, .toolbar, .summary-grid, .settings-grid {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 18px;
}
.band, .doc-header, .section-head { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
h1, h2 { margin: 0 0 8px; }
p { color: var(--muted); margin: 0; }
.upload-form, .doc-actions, .actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.inline-form { display: inline-flex; margin: 0; }
.inline-form button { padding: 6px 10px; }
.user-pill { color: var(--muted); font-size: 13px; }
.auth-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  max-width: 440px;
  margin: 64px auto 0;
  padding: 22px;
}
.auth-form {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}
.auth-form label { display: grid; gap: 6px; font-weight: 700; }
.auth-form a { justify-self: start; }
.form-error { color: var(--danger); background: #fff1f0; border: 1px solid #f4b4ad; padding: 10px; border-radius: 6px; }
.form-success { color: var(--accent-strong); background: #e6f6f4; border: 1px solid #9dd7cf; padding: 10px; border-radius: 6px; }
.check { display: inline-flex; gap: 6px; align-items: center; }
.summary-grid { display: grid; grid-template-columns: repeat(4, minmax(150px, 1fr)); gap: 12px; }
.summary-grid div { border-left: 4px solid var(--accent); background: #f4fbf9; padding: 12px; border-radius: 6px; }
.summary-grid span { display: block; color: var(--muted); margin-bottom: 6px; }
.summary-grid strong { font-size: 20px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.table-wrap { overflow: auto; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; }
.review-table-wrap { max-height: calc(100vh - 270px); }
.data-table { width: 100%; border-collapse: collapse; min-width: 980px; }
.data-table th, .data-table td { border-bottom: 1px solid var(--line); padding: 8px; text-align: left; vertical-align: middle; }
.data-table th { position: sticky; top: 0; background: #eef2f7; z-index: 1; font-size: 12px; color: #354052; }
.data-table tr:hover { background: #fbfcfe; }
.strong { font-weight: 700; }
.empty { color: var(--muted); text-align: center; padding: 28px; }
.thumb { width: 82px; height: 104px; object-fit: contain; border: 1px solid var(--line); background: #fff; }
.cell-input { width: 140px; }
.cell-input.merchant { width: 190px; }
.cell-input.amount { width: 82px; text-align: right; }
.category-select { min-width: 140px; }
.warning { display: block; background: var(--warn-bg); color: #765300; border-radius: 4px; padding: 3px 5px; margin: 2px 0; white-space: nowrap; }
.notice { background: #e6f6f4; border: 1px solid #9dd7cf; padding: 12px; border-radius: 8px; margin-bottom: 16px; }
.settings-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; align-items: start; }
.rule-form, .rule-row { display: grid; grid-template-columns: 1.4fr 110px 170px repeat(3, 1fr) auto; gap: 8px; margin-bottom: 8px; align-items: center; }
.inline-delete { margin: -6px 0 12px; }
.category-form { display: grid; gap: 8px; }
.category-form label { display: grid; grid-template-columns: 70px 24px 1fr 110px; gap: 6px; align-items: center; }
.muted { color: var(--muted); }
@media (max-width: 900px) {
  .band, .doc-header, .section-head { display: block; }
  .summary-grid, .settings-grid { grid-template-columns: 1fr; }
  .page { padding: 12px; }
}