/* ===== Design tokens ===== */
:root {
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface-2: #f8f9fc;
  --border: #e2e6ee;
  --text: #1b2333;
  --muted: #6a7487;
  --primary: #2457c5;
  --primary-ink: #ffffff;
  --primary-soft: #e8eefb;
  --danger: #c93a3a;
  --danger-soft: #fbeaea;
  --warn: #b7791f;
  --warn-soft: #fdf3dc;
  --ok: #1e8a4f;
  --ok-soft: #e3f5ea;
  --info: #2a7cb8;
  --info-soft: #e5f1fa;
  --violet: #6b4bc4;
  --violet-soft: #eee9fa;
  --grey-soft: #eceff4;
  --shadow: 0 1px 2px rgba(20, 30, 55, .06), 0 4px 14px rgba(20, 30, 55, .05);
  --radius: 10px;
  --sidebar-w: 236px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #11151d; --surface: #1a2030; --surface-2: #202738; --border: #2c3550;
    --text: #e6eaf3; --muted: #94a0b8; --primary: #6c92f0; --primary-ink: #0d1424; --primary-soft: #222f52;
    --danger: #ef7676; --danger-soft: #3a2327; --warn: #e3b25a; --warn-soft: #3a3020;
    --ok: #55c98a; --ok-soft: #1f3a2c; --info: #66b4e8; --info-soft: #1d3345;
    --violet: #a58cf0; --violet-soft: #2c2750; --grey-soft: #272e42;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 4px 14px rgba(0,0,0,.3);
  }
}
:root[data-theme="dark"] {
  --bg: #11151d; --surface: #1a2030; --surface-2: #202738; --border: #2c3550;
  --text: #e6eaf3; --muted: #94a0b8; --primary: #6c92f0; --primary-ink: #0d1424; --primary-soft: #222f52;
  --danger: #ef7676; --danger-soft: #3a2327; --warn: #e3b25a; --warn-soft: #3a3020;
  --ok: #55c98a; --ok-soft: #1f3a2c; --info: #66b4e8; --info-soft: #1d3345;
  --violet: #a58cf0; --violet-soft: #2c2750; --grey-soft: #272e42;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 4px 14px rgba(0,0,0,.3);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14.5px; line-height: 1.5; color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { margin: 0; line-height: 1.25; }
h1 { font-size: 22px; } h2 { font-size: 17px; } h3 { font-size: 15px; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font: inherit; color: inherit; cursor: pointer; }
.muted { color: var(--muted); } .small { font-size: 12.5px; } .right { text-align: right; } .nowrap { white-space: nowrap; }
.hidden { display: none !important; }
.mono { font-variant-numeric: tabular-nums; }

/* ===== Shell ===== */
#app { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); flex: none; background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; z-index: 40;
}
.brand { padding: 18px 18px 14px; display: flex; gap: 10px; align-items: center; border-bottom: 1px solid var(--border); }
.brand-logo { width: 36px; height: 36px; border-radius: 9px; background: var(--primary); color: var(--primary-ink); display: grid; place-items: center; font-weight: 700; flex: none; }
.brand-name { font-weight: 700; font-size: 12.5px; line-height: 1.25; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.brand-sub { font-size: 11.5px; color: var(--muted); }
.nav { padding: 10px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; flex: 1; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 8px; color: var(--text); font-weight: 500; text-decoration: none;
}
.nav a:hover { background: var(--surface-2); }
.nav a.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.nav .ico { width: 20px; text-align: center; }
.nav .count { margin-left: auto; font-size: 11.5px; background: var(--danger); color: #fff; border-radius: 10px; padding: 0 7px; }
.side-foot { padding: 12px; border-top: 1px solid var(--border); font-size: 12.5px; }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 30; background: var(--surface); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 12px; padding: 10px 24px;
}
.topbar .burger { display: none; }
.search { position: relative; flex: 1; max-width: 460px; }
.search input { width: 100%; }
.search-pop {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); max-height: 380px; overflow: auto; z-index: 50;
}
.search-pop a { display: block; padding: 8px 12px; color: var(--text); text-decoration: none; border-bottom: 1px solid var(--border); }
.search-pop a:hover { background: var(--surface-2); }
.search-pop .grp { padding: 6px 12px; font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); background: var(--surface-2); }
.top-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.user-chip { display: flex; align-items: center; gap: 8px; padding: 4px 10px 4px 4px; border: 1px solid var(--border); border-radius: 20px; background: var(--surface); }
.avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-weight: 700; font-size: 12px; flex: none; }
#view { padding: 22px 24px 60px; max-width: 1500px; width: 100%; margin: 0 auto; }
.page-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.page-head .grow { flex: 1; min-width: 200px; }
.page-head p { margin: 2px 0 0; color: var(--muted); }
.scrim { display: none; }

/* ===== Controls ===== */
input, select, textarea {
  font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 10px; min-height: 38px; width: 100%;
}
textarea { min-height: 80px; resize: vertical; }
input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible { outline: 2px solid var(--primary); outline-offset: 1px; }
input[type="checkbox"], input[type="radio"] { width: auto; min-height: 0; }
label.fld { display: flex; flex-direction: column; gap: 4px; font-weight: 600; font-size: 13px; }
label.fld .hint { font-weight: 400; color: var(--muted); font-size: 12px; }
label.fld.err input, label.fld.err select, label.fld.err textarea { border-color: var(--danger); }
label.fld .errmsg { color: var(--danger); font-weight: 500; font-size: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 14px; min-height: 38px;
  border-radius: 8px; border: 1px solid var(--border); background: var(--surface); font-weight: 600; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); border-color: var(--danger); background: transparent; }
.btn.danger:hover { background: var(--danger-soft); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.sm { padding: 4px 10px; min-height: 30px; font-size: 13px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ===== Cards, tables ===== */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-h { padding: 14px 16px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.card-h h2, .card-h h3 { flex: 1; }
.card-b { padding: 16px; }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g-main { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.kpi { padding: 14px 16px; }
.kpi .lbl { color: var(--muted); font-size: 12.5px; }
.kpi .val { font-size: 26px; font-weight: 700; margin-top: 2px; }
.kpi .sub { font-size: 12.5px; color: var(--muted); }
.kpi.warn .val { color: var(--danger); }
.table-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; }
.tbl th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; padding: 9px 12px; background: var(--surface-2); border-bottom: 1px solid var(--border); white-space: nowrap; }
.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl tbody tr.clickable { cursor: pointer; }
.tbl tbody tr.clickable:hover { background: var(--surface-2); }
.tbl th.sortable { cursor: pointer; user-select: none; }
.tbl th.sortable:hover { color: var(--text); }
.empty { text-align: center; padding: 36px 16px; color: var(--muted); }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.toolbar input[type="search"], .toolbar .f-search { max-width: 280px; }
.toolbar select { width: auto; min-width: 140px; }
.pager { display: flex; gap: 6px; align-items: center; justify-content: flex-end; padding: 10px 16px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; }

.badge { display: inline-flex; align-items: center; gap: 4px; padding: 1px 9px; border-radius: 12px; font-size: 12px; font-weight: 600; background: var(--grey-soft); color: var(--muted); white-space: nowrap; }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.danger { background: var(--danger-soft); color: var(--danger); }
.badge.info { background: var(--info-soft); color: var(--info); }
.badge.primary { background: var(--primary-soft); color: var(--primary); }
.badge.violet { background: var(--violet-soft); color: var(--violet); }
.progress { height: 8px; background: var(--grey-soft); border-radius: 6px; overflow: hidden; min-width: 80px; }
.progress > i { display: block; height: 100%; background: var(--primary); border-radius: 6px; }
.progress.ok > i { background: var(--ok); }

.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tabs button { background: none; border: 0; padding: 10px 14px; font-weight: 600; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs button.on { color: var(--primary); border-color: var(--primary); }

.kv { display: grid; grid-template-columns: 160px 1fr; gap: 6px 14px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 14px; }
.form-grid .full { grid-column: 1 / -1; }

/* ===== Modal / toast ===== */
.modal-back { position: fixed; inset: 0; background: rgba(10, 15, 30, .5); z-index: 100; display: grid; place-items: center; padding: 16px; overflow: auto; }
.modal { background: var(--surface); border-radius: 12px; width: 100%; max-width: 640px; max-height: calc(100vh - 32px); display: flex; flex-direction: column; box-shadow: 0 20px 60px rgba(0, 0, 0, .35); border: 1px solid var(--border); }
.modal.lg { max-width: 900px; } .modal.sm { max-width: 440px; }
.modal-h { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }
.modal-h h2 { flex: 1; }
.modal-b { padding: 18px; overflow: auto; }
.modal-f { padding: 12px 18px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }
#toasts { position: fixed; bottom: 18px; right: 18px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px; box-shadow: var(--shadow); max-width: 360px; animation: tin .2s ease; }
.toast.err { background: var(--danger); color: #fff; } .toast.ok { background: var(--ok); color: #fff; }
@keyframes tin { from { opacity: 0; transform: translateY(8px); } }

/* ===== Kanban ===== */
.kanban { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 8px; align-items: flex-start; }
.kcol { flex: 0 0 250px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); }
.kcol.over { outline: 2px dashed var(--primary); }
.kcol-h { padding: 10px 12px; font-weight: 700; display: flex; justify-content: space-between; align-items: center; }
.kcol-b { padding: 0 8px 8px; display: flex; flex-direction: column; gap: 8px; min-height: 60px; }
.kcard { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 9px 11px; cursor: grab; }
.kcard:hover { border-color: var(--primary); }
.kcard .nm { font-weight: 600; }

/* ===== Unit grid ===== */
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
.s-free { --c: var(--ok); --cs: var(--ok-soft); }
.s-hold { --c: var(--warn); --cs: var(--warn-soft); }
.s-deposit { --c: var(--info); --cs: var(--info-soft); }
.s-sold { --c: var(--violet); --cs: var(--violet-soft); }
.s-locked { --c: var(--muted); --cs: var(--grey-soft); }
.legend i { background: var(--c); }
.floorplan { overflow-x: auto; }
.floor-row { display: grid; grid-template-columns: 54px 1fr; gap: 6px; margin-bottom: 10px; align-items: start; }
.floor-cells { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 6px; }
.floor-lbl { min-height: 58px; display: grid; place-items: center; font-weight: 700; color: var(--muted); font-size: 12.5px; }
.ucell {
  min-height: 58px; width: 100%; border: 1px solid var(--c); background: var(--cs); color: var(--text);
  border-radius: 7px; padding: 5px 7px; text-align: left; line-height: 1.25; position: relative;
}
.ucell:hover { filter: brightness(.96); box-shadow: 0 0 0 2px var(--c); }
.ucell .cd { font-weight: 700; font-size: 13px; } .ucell .tp { font-size: 11.5px; color: var(--muted); }
.ucell .pr { font-size: 11.5px; font-weight: 600; }
.ucell.dim { opacity: .25; }

/* ===== Stepper / checklist ===== */
.steps { display: flex; flex-direction: column; gap: 0; }
.step { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.step:last-child { border-bottom: 0; }
.step .dot { flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; font-size: 13px; background: var(--grey-soft); color: var(--muted); }
.step.done .dot { background: var(--ok); color: #fff; }
.step.doing .dot { background: var(--primary); color: var(--primary-ink); }
.step.blocked .dot { background: var(--danger); color: #fff; }
.step .body { flex: 1; min-width: 0; }
.step .ttl { font-weight: 600; }
.check-row { display: flex; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--border); flex-wrap: wrap; }
.check-row:last-child { border-bottom: 0; }
.check-row .nm { flex: 1; min-width: 200px; }
.check-row select { width: auto; min-width: 130px; }
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { padding: 0 0 14px 20px; border-left: 2px solid var(--border); margin-left: 6px; position: relative; }
.timeline li::before { content: ""; position: absolute; left: -6px; top: 4px; width: 10px; height: 10px; border-radius: 50%; background: var(--primary); }
.timeline li.sys::before { background: var(--muted); }

.bars { display: flex; flex-direction: column; gap: 8px; }
.bar-row { display: grid; grid-template-columns: 110px 1fr 70px; gap: 10px; align-items: center; font-size: 13px; }
.bar-row .track { height: 14px; background: var(--grey-soft); border-radius: 7px; overflow: hidden; }
.bar-row .track i { display: block; height: 100%; background: var(--primary); }
.cols-chart { display: flex; align-items: flex-end; gap: 10px; height: 170px; padding-top: 8px; }
.cols-chart .col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; font-size: 12px; gap: 4px; }
.cols-chart .col i { width: 100%; max-width: 44px; background: var(--primary); border-radius: 5px 5px 0 0; min-height: 2px; }
.donut-wrap { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }

.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; background: var(--bg); }
.login-card { width: 100%; max-width: 400px; padding: 28px; }
.notice { background: var(--warn-soft); color: var(--warn); border-radius: 8px; padding: 10px 14px; font-size: 13px; }
.notice.info { background: var(--info-soft); color: var(--info); }
.demo-accts { margin-top: 16px; font-size: 12.5px; color: var(--muted); }
.demo-accts button { background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 2px 8px; margin: 2px 2px 0 0; }

#printArea { display: none; }

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g-main { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .sidebar { position: fixed; left: 0; top: 0; transform: translateX(-100%); transition: transform .2s; box-shadow: var(--shadow); }
  body.nav-open .sidebar { transform: none; }
  body.nav-open .scrim { display: block; position: fixed; inset: 0; background: rgba(0, 0, 0, .4); z-index: 35; }
  .topbar { padding: 8px 14px; }
  .topbar .burger { display: inline-flex; }
  #view { padding: 16px 14px 60px; }
  .g2, .g3 { grid-template-columns: 1fr; }
  .user-chip .uname { display: none; }
}
@media (max-width: 560px) {
  .g4 { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; gap: 0; } .kv dd { margin-bottom: 8px; }
  .bar-row { grid-template-columns: 80px 1fr 56px; }
  .kpi .val { font-size: 22px; }
  .toolbar select, .toolbar .f-search { width: 100%; max-width: none; flex: 1 1 100%; }
}

/* ===== Print ===== */
@media print {
  body > *:not(#printArea) { display: none !important; }
  #printArea { display: block !important; color: #000; background: #fff; padding: 0; font-size: 13px; }
  #printArea h1 { font-size: 20px; text-align: center; margin-bottom: 4px; }
  #printArea table { width: 100%; border-collapse: collapse; margin: 10px 0; }
  #printArea th, #printArea td { border: 1px solid #444; padding: 5px 8px; text-align: left; }
  #printArea .sign { display: flex; justify-content: space-around; margin-top: 50px; text-align: center; }
}