:root {
  --bg: #f6f7f5; --panel: #ffffff; --ink: #1c2420; --muted: #5f6b64; --line: #dde2dd;
  --accent: #1f4d3a; --accent-ink: #ffffff; --bad: #b3261e; --bad-bg: #fbe9e7; --warn: #8a5a00; --warn-bg: #fdf3d8; --ok: #1f6b45; --ok-bg: #e3f3ea; --band: #e6efe9; --hover: #f1f3f0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131815; --panel: #1b221e; --ink: #e6ebe7; --muted: #9aa69f; --line: #2c3731;
    --accent: #7fc6a2; --accent-ink: #0f1a14; --bad: #ff8a80; --bad-bg: #3a1c1a; --warn: #f2c14e; --warn-bg: #3a2f12; --ok: #86d6a8; --ok-bg: #17301f; --band: #243229; --hover: #202a24;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 "Pretendard", "Malgun Gothic", "Apple SD Gothic Neo", system-ui, sans-serif; }
a { color: var(--accent); }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 28px 0 10px; }
p { margin: 6px 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.loading { padding: 48px 16px; text-align: center; color: var(--muted); }

header.top { background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
header.top .in { max-width: 1180px; margin: 0 auto; padding: 10px 16px; display: flex; gap: 8px 18px; align-items: center; flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--accent); margin-right: 8px; }
nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
nav a { padding: 6px 10px; border-radius: 6px; text-decoration: none; color: var(--ink); white-space: nowrap; }
@media (max-width: 760px) {
  nav { order: 3; flex-basis: 100%; flex-wrap: nowrap; overflow-x: auto; }
  .who { margin-left: auto; }
}
nav a.on { background: var(--accent); color: var(--accent-ink); }
.who { color: var(--muted); font-size: 13px; display: flex; gap: 10px; align-items: center; }
main { max-width: 1180px; margin: 0 auto; padding: 20px 16px 60px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; margin: 16px 0; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.card .label { color: var(--muted); font-size: 13px; }
.card .value { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.card .value.bad { color: var(--bad); }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin: 12px 0; }
.scroll { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { font-size: 13px; color: var(--muted); font-weight: 600; background: var(--panel); }
tr:last-child td { border-bottom: 0; }
td.n, th.n { text-align: right; }
td.wrap { white-space: normal; min-width: 180px; }
tr.sub td { font-weight: 700; }
tr.band1 td { background: var(--band); }
tr.sub td { border-bottom: 1px solid var(--muted); }
td.lord { font-weight: 700; }
tr.link { cursor: pointer; }
tr.link:hover td { background: var(--hover); }

.tag { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.tag.bad { background: var(--bad-bg); color: var(--bad); }
.tag.warn { background: var(--warn-bg); color: var(--warn); }
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.plain { background: var(--bg); color: var(--muted); }
.bad-text { color: var(--bad); font-weight: 600; }

button, .btn { font: inherit; padding: 7px 14px; border-radius: 7px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); cursor: pointer; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
button.danger { color: var(--bad); }
button.mini { padding: 2px 8px; font-size: 13px; }
button:disabled { opacity: .5; cursor: default; }
input, select, textarea { font: inherit; padding: 7px 9px; border-radius: 7px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); max-width: 100%; }
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 3px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; }
.row > div { min-width: 140px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.msg { padding: 10px 12px; border-radius: 8px; margin: 10px 0; }
.msg.err { background: var(--bad-bg); color: var(--bad); }
.msg.ok { background: var(--ok-bg); color: var(--ok); }
.msg.warn { background: var(--warn-bg); color: var(--warn); }

.login { max-width: 380px; margin: 9vh auto; padding: 0 16px; }
.login .panel { padding: 24px; }
.login input { width: 100%; }
.login button { width: 100%; margin-top: 16px; }
.secret { font-family: ui-monospace, Consolas, monospace; font-size: 17px; letter-spacing: 1px; word-break: break-all; background: var(--bg); padding: 10px; border-radius: 8px; user-select: all; }
.w100 { width: 100%; }
.grow { flex: 1; }
/* 미수가 없는 행, 이전 계약은 흐리게 */
tr.dim td { color: var(--muted); }
tr.dim td a { color: var(--muted); }

/* 계약의 펼침 행 */
tr.detail td { white-space: normal; background: var(--bg); padding: 12px 16px; }
tr.detail dl { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; }
tr.detail dt { color: var(--muted); font-size: 13px; }
tr.detail dd { margin: 0; }

/* 납부 현황판: 연도 한 줄에 12칸 */
.mboard { display: grid; grid-template-columns: max-content repeat(12, minmax(0, 1fr)); gap: 6px; align-items: stretch; margin: 10px 0 4px; }
.mb-year { font-weight: 700; padding: 8px 8px 8px 0; align-self: center; }
.mb-cell { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; min-height: 46px; padding: 4px 2px; border-radius: 8px; border: 1px solid var(--line); font-size: 13px; background: var(--panel); color: var(--ink); }
.mb-cell.none { color: var(--muted); border-style: dashed; background: transparent; }
.mb-cell.ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.mb-cell.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.mb-cell.bad { background: var(--bad-bg); color: var(--bad); border-color: transparent; font-weight: 700; }
.mb-state { font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
@media (max-width: 760px) { .mboard { grid-template-columns: repeat(6, minmax(0, 1fr)); } .mb-year { grid-column: 1 / -1; padding-bottom: 0; } }

/* 임차인 화면 위쪽 이동 줄 */
.tenant-nav { align-items: center; margin-bottom: 8px; }
a.btn { text-decoration: none; display: inline-block; }

/* 줄 끝의 "⋯" 메뉴 */
details.menu { position: relative; display: inline-block; }
details.menu summary { list-style: none; cursor: pointer; padding: 0 8px; border-radius: 6px; color: var(--muted); font-weight: 700; }
details.menu summary::-webkit-details-marker { display: none; }
details.menu summary:hover { background: var(--bg); }
details.menu[open] button { position: absolute; right: 0; top: 100%; z-index: 3; white-space: nowrap; background: var(--panel); box-shadow: 0 4px 14px rgba(0, 0, 0, .18); padding: 6px 10px; }

details.help summary, details.fold summary { cursor: pointer; }
details.fold { margin: 12px 0; }
details.fold summary { padding: 8px 0; font-weight: 600; }
label.inline { display: inline-block; margin: 0 12px 0 0; white-space: nowrap; }

/* 보고서: 12개월과 합계가 한 화면에 들어오게 좁게, 임차인 이름은 고정 */
.compact table { font-size: 12.5px; }
.compact th, .compact td { padding: 6px 7px; }
.compact th:first-child, .compact td:first-child { position: sticky; left: 0; background: var(--panel); z-index: 1; }
.compact tr.sub td:first-child { background: var(--panel); }
td.c-bad { background: var(--bad-bg); color: var(--bad); font-weight: 700; }
td.c-warn { background: var(--warn-bg); color: var(--warn); }

@media print {
  header.top, .actions, .noprint, details.menu { display: none !important; }
  body { background: #fff; color: #000; font-size: 12px; }
  main { max-width: none; padding: 0; }
  .scroll { overflow: visible; border: 0; }
  .card, .panel, .scroll { break-inside: avoid; }
  th, td { padding: 5px 6px; }
  a { color: inherit; text-decoration: none; }
  tr.dim td { color: #000; }
}