:root {
  --bg: #f3f4f6; --panel: #ffffff; --ink: #1f2933; --muted: #5f6b7a; --line: #d5dae1;
  --accent: #1b6fd1; --accent-ink: #ffffff; --warn: #9a5b00; --warn-bg: #fff4dc; --err: #b3261e; --err-bg: #fdeceb;
  --ok: #1d7a46; --ok-bg: #e7f5ec; --note-bg: #eef1f5;
  --room: #2f7fd0; --unit: #1f9d63; --common: #e08a1e; --exempt: #8a5fc9; --outline: #d33a3a;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { font: 15px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--ink);
       background: var(--bg); display: flex; flex-direction: column; overflow: hidden; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

#top { display: flex; flex-wrap: wrap; row-gap: 6px; align-items: flex-end; gap: 8px 10px; padding: 8px 14px; background: var(--panel); border-bottom: 1px solid var(--line); flex: none; }
.brand { font-weight: 700; font-size: 17px; align-self: center; margin-right: 6px; }
.field { display: flex; flex-direction: column; gap: 2px; font-size: 12px; color: var(--muted); font-weight: 600; }
.field.stack { margin: 8px 0 4px; }
.field select, .field input { font: inherit; font-size: 15px; font-weight: 400; color: var(--ink); padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
#fileSel { width: 250px; max-width: 20vw; }
#floor { width: 110px; }
.pager { display: flex; gap: 4px; align-items: center; }
.pager select { min-width: 110px; }
.spacer { flex: 1; }
.savestate { font-size: 13px; color: var(--muted); align-self: center; min-width: 120px; text-align: right; }
.savestate.ok { color: var(--ok); }
.savestate.bad { color: var(--err); font-weight: 600; }

.btn { font: inherit; font-size: 14px; padding: 7px 12px; border: 1px solid #b9c1cc; border-radius: 6px; background: #fff; color: var(--ink); cursor: pointer; }
.btn:hover:not(:disabled) { background: #eef2f7; }
.btn:disabled { opacity: .45; cursor: default; }
.btn.small { padding: 4px 9px; font-size: 13px; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.primary:hover:not(:disabled) { background: #155aad; }
.btn.danger { color: var(--err); border-color: #e2b4b1; }
.btn.wide { width: 100%; margin-top: 8px; }
.btn.on { background: #155aad; border-color: #155aad; color: #fff; }
.row { display: flex; gap: 8px; margin-top: 8px; }

.banner { padding: 8px 14px; font-size: 14px; flex: none; border-bottom: 1px solid var(--line); }
.banner.warn { background: var(--warn-bg); color: var(--warn); }
.banner.bad { background: var(--err-bg); color: var(--err); }
.banner.ok { background: var(--ok-bg); color: var(--ok); }

main { flex: 1; min-height: 0; display: grid; grid-template-columns: 310px minmax(0, 1fr) 290px; }
aside { overflow-y: auto; padding: 10px; display: flex; flex-direction: column; gap: 10px; background: var(--bg); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
.card h2 { margin: 0 0 6px; font-size: 15px; display: flex; align-items: center; gap: 8px; }
.step { display: inline-flex; width: 22px; height: 22px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 13px; align-items: center; justify-content: center; }
.hint { margin: 8px 0 0; font-size: 13px; color: var(--muted); }
.note { padding: 6px 8px; border-radius: 6px; margin: 6px 0; font-size: 13px; }
.note.warn { background: var(--warn-bg); color: var(--warn); }
.note.bad { background: var(--err-bg); color: var(--err); }
.note.ok { background: var(--ok-bg); color: var(--ok); }
.note.plain { background: var(--note-bg); color: var(--muted); }
kbd { font: 12px ui-monospace, Menlo, monospace; background: #eef1f5; border: 1px solid #c9d0d9; border-bottom-width: 2px; border-radius: 4px; padding: 0 5px; }
details > summary { cursor: pointer; font-weight: 700; margin-bottom: 6px; }
ol { margin: 6px 0 8px 18px; padding: 0; font-size: 13px; }
ol li { margin-bottom: 4px; }
table.keys { font-size: 13px; border-collapse: collapse; width: 100%; }
table.keys td { padding: 2px 4px 2px 0; vertical-align: top; }
table.keys td:first-child { white-space: nowrap; padding-right: 10px; }

.kinds { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.kinds button { display: flex; align-items: center; gap: 6px; text-align: left; font: inherit; font-size: 14px; padding: 7px 8px; border: 2px solid var(--line); border-radius: 6px; background: #fff; cursor: pointer; }
.kinds button.sel { border-color: var(--accent); background: #eaf2fd; font-weight: 600; }
.chip { width: 12px; height: 12px; border-radius: 3px; flex: none; }
.kinds button:last-child { grid-column: span 2; }
#newFields .fld, #selFields .fld { display: flex; flex-direction: column; gap: 2px; margin-top: 8px; font-size: 12px; color: var(--muted); font-weight: 600; }
#newFields input[type=text], #newFields select, #selFields input[type=text], #selFields select { font: inherit; font-size: 14px; font-weight: 400; color: var(--ink); padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: #fff; width: 100%; }
.check { display: flex; align-items: center; gap: 6px; margin-top: 8px; font-size: 14px; }
.flags { margin-top: 6px; }

#viewport { position: relative; overflow: hidden; background: #8c939c; cursor: default; outline: none; user-select: none; touch-action: none; }
#viewport.draw { cursor: crosshair; }
#viewport.pan { cursor: grab; }
#viewport.panning { cursor: grabbing; }
#stage { position: absolute; left: 0; top: 0; transform-origin: 0 0; background: #fff; box-shadow: 0 2px 14px rgba(0,0,0,.35); }
#stage img { position: absolute; left: 0; top: 0; display: block; user-select: none; -webkit-user-drag: none; }
#base { image-rendering: auto; }
#detail { display: none; }
#overlay { position: absolute; left: 0; top: 0; overflow: visible; pointer-events: none; }
.loading { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); background: rgba(255,255,255,.95); padding: 10px 18px; border-radius: 8px; font-size: 15px; }
#tools { position: absolute; left: 10px; top: 10px; display: flex; gap: 6px; align-items: center; background: rgba(255,255,255,.96); border: 1px solid var(--line); border-radius: 8px; padding: 5px 8px; }
#tools .sep { width: 1px; height: 18px; background: var(--line); margin: 0 4px; }
#zoomLabel { min-width: 42px; text-align: center; }
.status { position: absolute; left: 10px; right: 10px; bottom: 10px; background: rgba(31,41,51,.93); color: #fff; padding: 8px 12px; border-radius: 8px; font-size: 14px; pointer-events: none; }
.status:empty { display: none; }

.list { display: flex; flex-direction: column; gap: 2px; max-height: 46vh; overflow-y: auto; }
.item { display: grid; grid-template-columns: 12px 1fr auto; gap: 8px; align-items: center; padding: 6px 6px; border-radius: 6px; cursor: pointer; border: 1px solid transparent; font-size: 14px; }
.item:hover { background: #f1f4f8; }
.item.sel { background: #eaf2fd; border-color: var(--accent); }
.item .nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .nm small { color: var(--muted); font-size: 12px; margin-left: 4px; }
.item .ar { color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }

#checkOut ul { list-style: none; margin: 8px 0 0; padding: 0; }
#checkOut li { padding: 6px 8px; border-radius: 6px; margin-bottom: 4px; font-size: 13px; }
#checkOut li.error { background: var(--err-bg); color: var(--err); }
#checkOut li.warning { background: var(--warn-bg); color: var(--warn); }
#checkOut li.note { background: var(--note-bg); color: var(--muted); }
#checkOut .sum { font-size: 13px; color: var(--muted); margin-top: 8px; }
#checkOut .good { background: var(--ok-bg); color: var(--ok); padding: 6px 8px; border-radius: 6px; margin-top: 8px; font-size: 13px; }

@media (max-width: 1100px) { main { grid-template-columns: 270px minmax(0, 1fr) 240px; } #fileSel { width: 240px; } }

.modal { position: fixed; inset: 0; background: rgba(20,28,36,.55); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal-card.wide { max-width: 760px; }
.modal-card h3 { margin: 16px 0 4px; font-size: 15px; }
.modal-card p, .modal-card li { font-size: 14px; }
.modal-card ul { margin: 4px 0 8px 18px; padding: 0; }
.words { margin: 4px 0; font-size: 14px; }
.words dt { font-weight: 700; margin-top: 6px; }
.words dd { margin: 0 0 0 0; }
.userbox { display: flex; align-items: center; gap: 8px; align-self: center; }
a.btn { text-decoration: none; display: inline-block; }
.modal-card { background: #fff; border-radius: 10px; padding: 18px 22px; max-width: 640px; max-height: 90vh; overflow-y: auto; box-shadow: 0 10px 40px rgba(0,0,0,.4); }
.modal-card h2 { margin: 0 0 8px; font-size: 19px; }
.modal-card ol { font-size: 14px; }
.modal-card table.keys { font-size: 14px; margin-top: 8px; }

/* sign-in, set-password and admin pages */
body.plain { display: block; overflow: auto; height: auto; min-height: 100%; }
.authcard { max-width: 400px; margin: 9vh auto 0; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 22px 24px; }
.authcard h1 { margin: 0 0 6px; font-size: 21px; }
.authcard .fld { margin: 12px 0 0; display: flex; flex-direction: column; gap: 3px; font-size: 13px; color: var(--muted); font-weight: 600; }
.authcard input { font: inherit; font-size: 15px; font-weight: 400; color: var(--ink); padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: #fff; width: 100%; }
.authcard .btn.wide { margin-top: 14px; padding: 9px 12px; }
.authcard a { color: var(--accent); }
.adminbar { display: flex; align-items: center; gap: 10px; padding: 10px 18px; background: var(--panel); border-bottom: 1px solid var(--line); }
.adminbar .brand { margin-right: auto; }
.adminpage { max-width: 1100px; margin: 0 auto; padding: 16px 18px 40px; }
.adminpage h2 { font-size: 17px; margin: 22px 0 8px; }
.person { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; margin-bottom: 12px; padding: 10px 14px; }
.person h3 { margin: 0 0 2px; font-size: 16px; }
table.grid { border-collapse: collapse; width: 100%; font-size: 13px; margin-top: 8px; }
table.grid th { text-align: left; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--line); padding: 4px 8px 4px 0; }
table.grid td { padding: 4px 8px 4px 0; border-bottom: 1px solid #edf0f4; vertical-align: top; }
.pill { display: inline-block; border-radius: 10px; padding: 0 8px; font-size: 12px; }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.bad { background: var(--err-bg); color: var(--err); }
.pill.warn { background: var(--warn-bg); color: var(--warn); }
.pill.none { background: var(--note-bg); color: var(--muted); }
.adminpage a { color: var(--accent); }
.tag { font-size: 12px; color: var(--muted); }
/* read-only viewer */
body.viewer { display: flex; flex-direction: column; overflow: hidden; }
#vwrap { flex: 1; min-height: 0; display: grid; grid-template-columns: 1fr 280px; }
#vport { position: relative; overflow: auto; background: #8c939c; }
#vstage { position: relative; transform-origin: 0 0; background: #fff; box-shadow: 0 2px 14px rgba(0,0,0,.35); margin: 12px; }
#vstage img, #vstage svg { position: absolute; left: 0; top: 0; }
#vside { overflow-y: auto; padding: 10px; background: var(--bg); }

.plans { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.plan { display: flex; align-items: center; justify-content: space-between; gap: 12px; text-align: left; font: inherit; font-size: 14px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: #fff; cursor: pointer; }
.plan:hover:not(:disabled) { background: #eef2f7; }
.plan:disabled { opacity: .5; cursor: default; }
.plan.cur { border-color: var(--accent); background: #eaf2fd; }
.plan .nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

#top .btn, #top .brand, .savestate, .userbox span { white-space: nowrap; }