:root {
  --bg: #F6F6F3; --panel: #FFFFFF; --panel-2: #EFEFEA; --ink: #22262E;
  --muted: #66707E; --faint: #99A0AB; --line: #E2E3DE; --line-strong: #C9CBC4;
  --accent: #3F5E96; --accent-ink: #FFFFFF; --accent-soft: #E7EDF7;
  --ok: #3E7C4F; --ok-soft: #E3F0E6; --warn: #96650F; --warn-soft: #F7ECD4;
  --bad: #A9382F; --bad-soft: #F8E7E5;
  --serif: Charter, "Iowan Old Style", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181D; --panel: #1E2128; --panel-2: #262A32; --ink: #E7E9EC;
    --muted: #9AA2AE; --faint: #6E7683; --line: #2D313A; --line-strong: #3D424D;
    --accent: #8FA8D8; --accent-ink: #14213A; --accent-soft: #253349;
    --ok: #7CBB8C; --ok-soft: #22352A; --warn: #D9A84E; --warn-soft: #3A3120;
    --bad: #E08A82; --bad-soft: #402522;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 14px; line-height: 1.55; }

/* App shell */
.app { display: flex; min-height: 100vh; }
.side { width: 212px; flex-shrink: 0; border-right: 1px solid var(--line); padding: 20px 12px;
        display: flex; flex-direction: column; gap: 2px; position: sticky; top: 0; height: 100vh; }
.wordmark { font-family: var(--serif); font-size: 17px; padding: 0 10px 14px; color: var(--ink); text-decoration: none; }
.wordmark small { display: block; font-family: var(--sans); font-size: 11px; color: var(--faint);
                  letter-spacing: .04em; text-transform: uppercase; margin-top: 2px; }
.nav-link { display: flex; align-items: center; gap: 9px; padding: 8px 10px; border-radius: 7px;
            font-size: 13.5px; color: var(--muted); text-decoration: none; }
.nav-link:hover { background: var(--panel-2); color: var(--ink); }
.nav-link.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.side-foot { margin-top: auto; padding: 10px; font-size: 12px; color: var(--faint); border-top: 1px solid var(--line); }
.side-foot b { display: block; color: var(--muted); font-weight: 500; }
.main { flex: 1; min-width: 0; padding: 26px 34px 60px; max-width: 980px; }
.page-head { margin: 0 0 4px; font-family: var(--serif); font-weight: 500; font-size: 24px; }
.page-sub { margin: 0 0 22px; color: var(--muted); font-size: 13px; }

/* Cards, rows, pills */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin-bottom: 18px; }
.card-head { padding: 12px 16px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 10px; }
.card-head h2 { margin: 0; font-size: 14px; font-weight: 600; }
.card-head span { font-size: 12px; color: var(--faint); }
.row { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.row:last-child { border-bottom: 0; }
.row .grow { flex: 1; min-width: 0; }
.row .t { font-weight: 600; font-size: 13.5px; }
.row .d { font-size: 12px; color: var(--muted); }
.dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.dot.ok { background: var(--ok); } .dot.warn { background: var(--warn); }
.dot.bad { background: var(--bad); } .dot.off { background: var(--faint); }
.pill { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 8px; border-radius: 9px; }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.bad { background: var(--bad-soft); color: var(--bad); }
.pill.acc { background: var(--accent-soft); color: var(--accent); }
.banner { border-radius: 10px; padding: 13px 16px; margin-bottom: 18px; display: flex; align-items: center; gap: 12px; }
.banner.warn { background: var(--warn-soft); border: 1px solid var(--warn); }
.banner.ok { background: var(--ok-soft); border: 1px solid var(--ok); }
.banner.bad { background: var(--bad-soft); border: 1px solid var(--bad); }

/* Forms and buttons */
.b { font: inherit; font-size: 12.5px; padding: 6px 12px; border-radius: 7px; cursor: pointer;
     border: 1px solid var(--line-strong); background: var(--panel); color: var(--ink); }
.b:hover { border-color: var(--accent); color: var(--accent); }
.b:focus-visible, a:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.b.pri { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.b.pri:hover { opacity: .9; color: var(--accent-ink); }
.b.danger { color: var(--bad); border-color: var(--bad); }
.form { display: grid; gap: 12px; }
.f-row { display: grid; gap: 4px; }
.f-row label { font-size: 12px; font-weight: 600; color: var(--muted); }
.f-row input, .f-row select {
  font: inherit; font-size: 13.5px; padding: 8px 10px; border-radius: 7px;
  border: 1px solid var(--line-strong); background: var(--bg); color: var(--ink); width: 100%;
}
.f-row input:focus, .f-row select:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
.f-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.hint { font-size: 12px; color: var(--faint); }
.err { font-size: 12.5px; color: var(--bad); margin: 2px 0 0; }
.code-box { font-family: var(--mono); font-size: 12px; background: var(--bg); border: 1px solid var(--line);
            border-radius: 7px; padding: 10px 12px; overflow-x: auto; white-space: nowrap; }

/* Guest (login) layout */
.guest { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.guest-card { width: 100%; max-width: 400px; background: var(--panel); border: 1px solid var(--line);
              border-radius: 12px; padding: 28px; }
.guest-card h1 { font-family: var(--serif); font-weight: 500; font-size: 21px; margin: 0 0 2px; }
.guest-card .sub { font-size: 13px; color: var(--muted); margin: 0 0 18px; }

.qr-wrap { display: flex; justify-content: center; padding: 10px; background: #fff; border-radius: 10px;
           border: 1px solid var(--line); width: fit-content; margin: 0 auto; }
.recovery { font-family: var(--mono); font-size: 12.5px; columns: 2; margin: 0; padding: 12px 16px;
            background: var(--bg); border: 1px solid var(--line); border-radius: 7px; list-style: none; }
.recovery li { padding: 2px 0; }

/* Dashboard stat tiles */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.stat .lbl { font-size: 11.5px; color: var(--muted); letter-spacing: .03em; text-transform: uppercase; }
.stat .val { font-family: var(--serif); font-size: 26px; margin-top: 2px; font-variant-numeric: tabular-nums; }
.stat .val.bad { color: var(--bad); }

/* Customer picker row + section headings + site rows */
.picker-row { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.picker-row select {
  flex: 1; min-width: 240px; font: inherit; font-size: 14px; font-weight: 600;
  padding: 9px 12px; border-radius: 8px; border: 1px solid var(--line-strong);
  background: var(--panel); color: var(--ink); cursor: pointer;
}
.sec-h { font-size: 11.5px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
         color: var(--muted); margin: 18px 0 6px; }
.sec-h:first-child { margin-top: 0; }
.site-row { display: flex; align-items: center; gap: 10px; padding: 9px 12px;
            border: 1px solid var(--line); border-radius: 8px; margin-bottom: 8px; }
.site-row .dm { font-weight: 600; font-size: 13.5px; }
.site-row .srv { font-size: 11.5px; color: var(--muted); background: var(--panel-2);
                 border-radius: 9px; padding: 1px 8px; }
.site-add { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.site-add select, .site-add input { flex: 1; min-width: 200px; font: inherit; font-size: 13.5px; padding: 8px 10px;
                   border-radius: 7px; border: 1px solid var(--line-strong); background: var(--bg); color: var(--ink); }
.x-btn { border: 0; background: none; color: var(--muted); cursor: pointer; font-size: 15px;
         line-height: 1; padding: 4px 6px; border-radius: 6px; margin-left: auto; }
.x-btn:hover { color: var(--bad); background: var(--bad-soft); }

/* Two-pane layouts (list + detail) stack on smaller screens */
.two-pane { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 16px; align-items: start; }
@media (max-width: 920px) {
  .two-pane { grid-template-columns: 1fr; }
}

/* Phones: sidebar becomes a top bar, forms go single-column */
@media (max-width: 700px) {
  .app { flex-direction: column; }
  .side {
    position: static; width: 100%; height: auto;
    flex-direction: row; align-items: center; flex-wrap: wrap; gap: 2px;
    padding: 10px 12px; border-right: 0; border-bottom: 1px solid var(--line);
  }
  .wordmark { padding: 0 10px 0 0; font-size: 15px; }
  .wordmark small { display: none; }
  .nav-link { padding: 6px 10px; font-size: 13px; }
  .side-foot { margin: 0 0 0 auto; padding: 0; border: 0; }
  .side-foot .foot-meta { display: none; }
  .side-foot form { margin: 0 !important; }
  .main { padding: 18px 14px 48px; }
  .page-head { font-size: 21px; }
  .f-2col { grid-template-columns: 1fr; }
  /* 16px stops iOS Safari from auto-zooming into focused fields */
  .f-row input, .f-row select, .f-row textarea, .guest-card input { font-size: 16px; }
  .row { flex-wrap: wrap; }
  .card-head { flex-wrap: wrap; }
}