/* Skládek – technical / industrial look. Mobile first, high contrast, big touch targets.
   No web fonts: system sans for text, system monospace for codes and quantities. */
:root {
  /* Concrete greys with one muted steel-blue accent (drawings, site documentation). */
  --bg: #e6e8ea;
  --panel: #f8f9fa;
  --panel-2: #eef0f2;
  --fg: #24292f;
  --muted: #505c69;
  --line: #d5d9dd;
  --line-strong: #a3abb4;
  --header: #2f353c;
  --header-fg: #dfe3e7;
  --accent: #4d6579;          /* steel blue-grey – primary action */
  --accent-fg: #ffffff;
  --accent-soft: #dce4eb;
  --link: #3f5f7a;
  --ok: #2f6f45;
  --ok-bg: #e3efe6;
  --warn: #a8433b;
  --warn-bg: #f6e5e3;
  --rack-card: #ffffff;
  --rack-card-hover: #e4edf5;
  --rack-edge: #758a9c;
  --rack-emphasis: #203d55;
  --plan-selection: #b79a43;
  --plan-selection-edge: #705818;
  --plan-selection-text: #211c10;
  --radius: 5px;
  --tap: 56px;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1d2126; --panel: #252a30; --panel-2: #2c3238; --fg: #edf1f5; --muted: #b6bfc9;
    --line: #394048; --line-strong: #56606b; --header: #171a1e; --header-fg: #cfd5db;
    --accent: #56708a; --accent-fg: #eef2f5; --accent-soft: #2e3a45; --link: #9fb7ca;
    --ok: #7fb893; --ok-bg: #22332a; --warn: #e0968f; --warn-bg: #3a2624;
    --rack-card: #36414d; --rack-card-hover: #414f5e;
    --rack-edge: #8fa9be; --rack-emphasis: #e5f1fc;
    --plan-selection: #a58a3c; --plan-selection-edge: #d0b568;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 17px/1.45 var(--sans);
  background: var(--bg);
  color: var(--fg);
  padding-bottom: env(safe-area-inset-bottom);
  font-variant-numeric: tabular-nums;
}
a { color: var(--link); text-underline-offset: 2px; }
h1 { font-size: 1.45rem; margin: 0; line-height: 1.2; letter-spacing: -.01em; }
h2 {
  font: 600 .75rem/1 var(--mono); text-transform: uppercase; letter-spacing: .12em;
  color: var(--muted); margin: 1.5rem 0 .6rem;
}
.muted { color: var(--muted); font-size: .88em; }
.code, code { font-family: var(--mono); font-size: .92em; letter-spacing: .02em; }
[hidden] { display: none !important; }
.icon { width: 22px; height: 22px; flex: none; }

/* ---------------------------------------------------------------- top bar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 10px;
  min-height: 52px; padding: 0 6px 0 10px; padding-top: env(safe-area-inset-top);
  background: var(--header); color: var(--header-fg);
  border-bottom: 1px solid #000;
}
.topbar a { color: inherit; text-decoration: none; }
.brand { display: flex; align-items: center; gap: 8px; font: 600 .9rem var(--mono); letter-spacing: .1em; }
.brand-mark { width: 12px; height: 12px; border: 2px solid var(--header-fg); box-shadow: 3px 3px 0 #8fa7ba; margin-right: 4px; }
.topbar .back { width: 44px; height: 44px; display: grid; place-items: center; margin-left: -6px; }
.topbar .title {
  flex: 1; font: 600 .8rem var(--mono); text-transform: uppercase; letter-spacing: .1em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: #aab3bc;
}
.menu summary { list-style: none; width: 48px; height: 48px; display: grid; place-items: center; cursor: pointer; }
.menu summary::-webkit-details-marker { display: none; }
.menu details[open] summary { background: rgb(255 255 255 / .08); }
.menu-panel {
  position: absolute; right: 0; top: calc(100% + 3px); width: min(320px, 100vw);
  background: var(--panel); color: var(--fg); border: 1px solid var(--line-strong); border-top: 0;
  box-shadow: 0 10px 28px rgb(0 0 0 / .18); display: grid;
}
.menu-panel a, .menu-panel button.link {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px; min-height: 52px;
  color: var(--fg); text-decoration: none; text-align: left; font-size: 1rem; border-top: 1px solid var(--line);
}
.menu-panel a:hover { background: var(--panel-2); }
.menu-panel form { border-top: 1px solid var(--line); }
.menu-panel button.link { width: 100%; border: 0; color: var(--warn); }
.menu-user { display: grid; padding: 14px 16px; background: var(--panel-2); font-size: .95rem; }
.menu-user span { font: .75rem var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

/* ---------------------------------------------------------------- layout */
main { max-width: 560px; margin: 0 auto; padding: 14px; display: grid; gap: 14px; }
main.wide { max-width: 1240px; }
.stack { display: grid; gap: 14px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
.row > * { flex: 1; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }

.offline {
  position: sticky; top: 53px; z-index: 9; margin: 0; padding: 12px;
  font: 700 .85rem var(--mono); text-transform: uppercase; letter-spacing: .08em; text-align: center;
  color: #fff; background: var(--warn);
}

/* ---------------------------------------------------------------- controls */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: var(--tap); padding: 0 18px;
  font: 600 .95rem var(--sans); text-decoration: none; text-align: center; letter-spacing: .02em;
  color: var(--fg); background: var(--panel);
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  cursor: pointer; touch-action: manipulation; user-select: none;
}
.btn:hover { background: var(--panel-2); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: wait; }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.06); }
.btn.danger { color: var(--warn); }
.btn.big { min-height: 60px; width: 100%; }
.btn.huge {
  min-height: 76px; width: 100%;
  font: 600 1.05rem var(--sans); text-transform: uppercase; letter-spacing: .05em;
}
.btn.huge .icon { width: 26px; height: 26px; }
.btn.subtle { border-style: dashed; }
.btn.link, button.link { background: none; border: 0; color: var(--link); text-decoration: underline; font: inherit; cursor: pointer; min-height: 44px; padding: 0; }
.btn.confirm { background: var(--header); color: var(--header-fg); border-color: var(--header); text-transform: uppercase; letter-spacing: .05em; }
.badge { font: 700 .8rem var(--mono); background: var(--accent-soft); color: var(--fg); padding: 1px 7px; border-radius: 3px; }

label { display: grid; gap: 6px; font: 600 .72rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
label.check { display: flex; align-items: center; gap: 8px; font: 400 .95rem var(--sans); text-transform: none; letter-spacing: 0; color: var(--fg); }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=search], input[type=date], select, textarea {
  font: 400 1rem var(--sans); letter-spacing: 0; text-transform: none;
  width: 100%; min-height: 52px; padding: 0 12px;
  color: var(--fg); background: var(--panel);
  border: 1px solid var(--line-strong); border-radius: var(--radius);
}
input:focus-visible, select:focus-visible, .btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
input[type=checkbox] { width: 22px; height: 22px; accent-color: var(--accent); }

.stepper { display: grid; grid-template-columns: 76px 1fr 76px; border: 1px solid var(--line-strong); border-radius: var(--radius); overflow: hidden; background: var(--panel); }
.stepper .btn { min-height: 76px; padding: 0; border: 0; border-radius: 0; background: var(--panel-2); }
.stepper .btn .icon { width: 28px; height: 28px; }
.stepper input {
  min-height: 76px; border: 0; border-left: 1px solid var(--line); border-right: 1px solid var(--line); border-radius: 0;
  text-align: center; font: 600 2.1rem var(--mono); -moz-appearance: textfield;
}
.stepper input::-webkit-inner-spin-button, .stepper input::-webkit-outer-spin-button { -webkit-appearance: none; }

.alert {
  margin: 0; padding: 12px 14px; font-weight: 600; font-size: .95rem;
  background: var(--panel); border: 1px solid var(--line); border-left: 5px solid; border-radius: var(--radius);
}
.alert.error { border-left-color: var(--warn); color: var(--warn); background: var(--warn-bg); }
.alert.ok { border-left-color: var(--ok); color: var(--ok); background: var(--ok-bg); }
.alert.info { border-left-color: var(--line-strong); }
.big-ok { font: 700 1rem var(--mono); text-transform: uppercase; letter-spacing: .1em; text-align: center; padding: 18px; }
.empty { color: var(--muted); text-align: center; padding: 24px 0; font: .85rem var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.tag {
  display: inline-block; font: 700 .72rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase;
  padding: 5px 7px; border: 1px solid; border-radius: 2px; white-space: nowrap;
}
.tag.ok { color: var(--ok); background: var(--ok-bg); }
.tag.low { color: var(--warn); background: var(--warn-bg); }

/* ---------------------------------------------------------------- home */
.home { display: grid; gap: 12px; }
.scan-cta {
  display: flex; align-items: center; gap: 18px; min-height: 128px; padding: 20px;
  background-color: var(--accent); color: var(--accent-fg); text-decoration: none;
  border: 1px solid var(--accent); border-radius: var(--radius);
  background-image:
    linear-gradient(rgb(255 255 255 / .07) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / .07) 1px, transparent 1px);
  background-size: 20px 20px;
}
.scan-cta:active { transform: translateY(1px); }
.scan-icon { width: 52px; height: 52px; stroke-width: 1.8; }
.scan-cta-text { display: grid; gap: 4px; }
.scan-cta strong { font-size: 1.35rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; line-height: 1.1; }
.scan-cta small { font: 600 .75rem var(--mono); text-transform: uppercase; letter-spacing: .1em; opacity: .75; }
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.tile {
  display: grid; gap: 4px; align-content: start; min-height: 112px; padding: 14px;
  background: var(--panel); color: var(--fg); text-decoration: none;
}
.tile:hover { background: var(--panel-2); }
.tile .icon { width: 26px; height: 26px; margin-bottom: 10px; color: var(--accent); stroke-width: 1.7; }
.tile strong { font-size: 1rem; font-weight: 600; line-height: 1.2; }
.tile small { font: .7rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.tile.active { box-shadow: inset 3px 0 0 var(--accent); }
.tile.active small { color: var(--fg); font-weight: 700; }

/* ---------------------------------------------------------------- scanner */
.scan { display: grid; gap: 12px; }
.scanner { position: relative; background: #000; border-radius: var(--radius); overflow: hidden; aspect-ratio: 3 / 4; max-height: 60vh; width: 100%; }
.scanner video { width: 100%; height: 100%; object-fit: cover; display: block; }
.scanner-frame {
  position: absolute; inset: 22% 12%;
  box-shadow: 0 0 0 999px rgb(0 0 0 / .45);
  background:
    linear-gradient(#e6e8ea, #e6e8ea) top left / 28px 4px no-repeat,
    linear-gradient(#e6e8ea, #e6e8ea) top left / 4px 28px no-repeat,
    linear-gradient(#e6e8ea, #e6e8ea) top right / 28px 4px no-repeat,
    linear-gradient(#e6e8ea, #e6e8ea) top right / 4px 28px no-repeat,
    linear-gradient(#e6e8ea, #e6e8ea) bottom left / 28px 4px no-repeat,
    linear-gradient(#e6e8ea, #e6e8ea) bottom left / 4px 28px no-repeat,
    linear-gradient(#e6e8ea, #e6e8ea) bottom right / 28px 4px no-repeat,
    linear-gradient(#e6e8ea, #e6e8ea) bottom right / 4px 28px no-repeat;
}
.scanner-frame::after { content: ""; position: absolute; left: 8%; right: 8%; top: 50%; height: 1px; background: #e0655a; box-shadow: 0 0 6px #e0655a; }
.scanner-status {
  position: absolute; left: 0; right: 0; bottom: 0; margin: 0; padding: 12px;
  font: 600 .8rem var(--mono); text-transform: uppercase; letter-spacing: .06em;
  color: #fff; background: rgb(0 0 0 / .7); text-align: center;
}
.scanner.off { aspect-ratio: auto; min-height: 110px; }
.scanner.off .scanner-frame { display: none; }
.manual { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.manual input { font-family: var(--mono); text-transform: uppercase; }

/* ---------------------------------------------------------------- product data sheet */
.product-card { background: var(--panel); border: 1px solid var(--line); border-top: 3px solid var(--accent); border-radius: var(--radius); padding: 14px 16px 6px; }
.pc-head { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 6px; font-size: .8rem; }
.pc-head .code:first-child { font-weight: 700; }
.product-card h1 { margin-bottom: 10px; }
.product-card .location { font: 800 1.6rem var(--mono); letter-spacing: .04em; margin: 0; }
.product-card .location a { color: inherit; }
.spec { display: grid; grid-template-columns: 96px 1fr; margin: 0; border-top: 1px solid var(--line); }
.spec dt, .spec dd { margin: 0; padding: 10px 0; border-bottom: 1px solid var(--line); }
.spec dd:last-of-type, .spec dt:last-of-type { border-bottom: 0; }
.spec dt { font: 600 .7rem var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); align-self: center; }
.spec dd { font-weight: 600; }
.spec dd.big { font: 600 1.45rem/1.1 var(--mono); letter-spacing: .02em; }
.spec dd.big a { color: inherit; text-decoration-thickness: 1px; text-decoration-color: var(--line-strong); }
.spec dd small { font-size: .9rem; font-weight: 600; color: var(--muted); }
.neg, .spec dd.neg { color: var(--warn); }
.pos { color: var(--ok); }

.owner-group { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; }
.owner-group h2 { margin: 0; padding: 10px 14px; background: var(--panel-2); border-bottom: 1px solid var(--line); color: var(--fg); }
.owner-group ul { margin: 0; padding: 0; list-style: none; }
.owner-group li { display: grid; grid-template-columns: 88px 1fr; gap: 10px; padding: 10px 14px; border-top: 1px solid var(--line); }
.owner-group li:first-child { border-top: 0; }
.qty-cell { font: 700 1rem var(--mono); text-align: right; }
.draft-item { display: grid; gap: 10px; padding: 12px 14px; border-top: 1px solid var(--line); }
.owner-group h2 + .draft-item { border-top: 0; }
.draft-item-name { display: grid; gap: 2px; }
.draft-item-qty { display: grid; grid-template-columns: 60px 1fr 60px 60px; gap: 6px; align-items: center; }
.draft-item-qty .btn { min-height: 52px; padding: 0; }
.draft-item-qty .qty { text-align: center; font: 600 1.6rem var(--mono); }

.signature { display: grid; gap: 6px; }
.signature-head { display: flex; justify-content: space-between; align-items: center; font: 600 .72rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.signature canvas {
  width: 100%; height: 200px; touch-action: none; border-radius: var(--radius);
  background: #fff linear-gradient(transparent calc(100% - 44px), #8c959f calc(100% - 44px), #8c959f calc(100% - 43px), transparent calc(100% - 43px));
  border: 1px solid var(--line-strong);
}
.signature-missing .signature canvas { border: 2px solid var(--warn); }
.signature-missing .signature-head span::after { content: " – chybí"; color: var(--warn); }

.delivery-note { background: var(--panel); border: 1px solid var(--line); border-top: 3px solid var(--accent); padding: 16px; border-radius: var(--radius); }
.delivery-note h1 { font: 600 1.2rem var(--mono); text-transform: uppercase; letter-spacing: .04em; }
.delivery-note dl { display: grid; grid-template-columns: max-content 1fr; gap: 0 16px; margin: 12px 0; }
.delivery-note dt, .delivery-note dd { padding: 6px 0; border-bottom: 1px solid var(--line); margin: 0; }
.delivery-note dt { font: 600 .7rem var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); align-self: center; }
.delivery-note dd { font-weight: 600; }
.signature-img img { max-width: 300px; width: 100%; background: #fff; border: 1px solid var(--line); }
.signature-img { margin: 12px 0 0; }
.signature-img figcaption { font: .7rem var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }

.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.list a { display: grid; gap: 2px; padding: 12px 14px; background: var(--panel); color: var(--fg); text-decoration: none; }
.list a:hover { background: var(--panel-2); }
.list a strong { font-weight: 700; }
.list a.hl { box-shadow: inset 3px 0 0 var(--accent); background: var(--accent-soft); }

/* ---------------------------------------------------------------- tables (overview, admin) */
.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filters > input, .filters > label:not(.check) { flex: 1 1 180px; width: auto; }
.filters > input[type=date] { flex: 0 1 170px; }
.filters input, .filters select { min-height: 44px; }
.filters .btn { min-height: 44px; }
.table-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.table-wrap > .table { border: 0; }
.table th, .table td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover td { background: var(--panel-2); }
.table th {
  position: sticky; top: 0; background: var(--panel-2); border-bottom: 1px solid var(--line-strong);
  font: 600 .68rem var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); white-space: nowrap;
}
.table .num { text-align: right; font-family: var(--mono); white-space: nowrap; }
.table tr.inactive td { opacity: .45; }
.show-sm { display: none; }
@media (max-width: 600px) {
  .hide-sm { display: none; }
  .show-sm { display: block; }
  .table { font-size: .88rem; }
  .table th, .table td { padding: 8px 6px; }
}

.admin-nav { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 1px solid var(--line-strong); }
.admin-nav a {
  padding: 10px 12px; margin-bottom: -1px; text-decoration: none; color: var(--muted);
  font: 600 .72rem var(--mono); text-transform: uppercase; letter-spacing: .1em;
  border-bottom: 3px solid transparent;
}
.admin-nav a:hover { color: var(--fg); }
.admin-nav a.active { color: var(--fg); border-bottom-color: var(--accent); border-bottom-width: 2px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; align-items: end; }
details.card > summary { cursor: pointer; font: 600 .78rem var(--mono); text-transform: uppercase; letter-spacing: .1em; min-height: 28px; }
details.card[open] > summary { margin-bottom: 12px; }
p.stock { margin: 0; }

/* ---------------------------------------------------------------- floor plan (technical drawing) */
.plan-wrap { display: grid; gap: 6px; margin: 0; }
.plan { width: 100%; height: auto; max-height: 75vh; background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--radius); user-select: none; }
/* Walls: every area stroked first, then all areas filled – shared inner edges vanish, the outline stays. */
.plan .wall { fill: var(--panel); stroke: var(--fg); stroke-width: 6px; vector-effect: non-scaling-stroke; }
/* The thin same-colour stroke hides anti-aliasing seams where two areas touch. */
.plan .floor-area { fill: var(--panel); stroke: var(--panel); stroke-width: 2px; vector-effect: non-scaling-stroke; }
.plan .grid-minor { stroke: var(--line); stroke-width: .5px; vector-effect: non-scaling-stroke; opacity: .7; }
.plan .grid-major { stroke: var(--line); stroke-width: 1px; vector-effect: non-scaling-stroke; }
.plan .ruler line { stroke: var(--muted); stroke-width: 1px; vector-effect: non-scaling-stroke; }
.plan .ruler text { fill: var(--muted); font-family: var(--mono); }
.plan .rack-body { fill: var(--panel-2); }
.plan .rack-outline { fill: none; stroke: var(--muted); stroke-width: 1.2px; vector-effect: non-scaling-stroke; }
.plan .hatch-line { stroke: var(--line-strong); stroke-width: 1px; vector-effect: non-scaling-stroke; opacity: .7; }
.plan .bay-line { stroke: var(--muted); stroke-width: 1px; vector-effect: non-scaling-stroke; stroke-dasharray: 3 2; }
.plan .rack text {
  fill: var(--fg); font-family: var(--mono); font-weight: 700; pointer-events: none;
  paint-order: stroke; stroke: var(--panel-2); stroke-width: 3px; stroke-linejoin: round; vector-effect: non-scaling-stroke;
}
.plan .bay-hl { fill: var(--accent); opacity: .85; }
.plan a:hover .rack-body { fill: var(--line); }
.plan .rack.hl .rack-body, .plan .rack.selected .rack-body { fill: var(--plan-selection); }
.plan .rack.hl .rack-outline, .plan .rack.selected .rack-outline { stroke: var(--plan-selection-edge); stroke-width: 3px; }
.plan .rack.hl text, .plan .rack.selected text { fill: var(--plan-selection-text); stroke: var(--plan-selection); }
.plan.editable { touch-action: none; }
.plan.editable[data-mode=select] .rack { cursor: grab; }
.plan.editable[data-mode=rack], .plan.editable[data-mode=area] { cursor: crosshair; }
.plan.editable[data-mode=rack] .rack, .plan.editable[data-mode=area] .rack { pointer-events: none; }
.plan .rack.selected .rack-outline { stroke-dasharray: 6 3; }
.plan .draft { stroke-width: 2px; vector-effect: non-scaling-stroke; stroke-dasharray: 6 4; }
.plan .draft.rack { fill: var(--accent-soft); stroke: var(--accent); }
.plan .draft.area { fill: rgb(127 127 127 / .12); stroke: var(--fg); }
.plan-legend { font: .7rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }

.plan-toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.plan-toolbar label { display: block; }
.plan-toolbar input { position: absolute; opacity: 0; pointer-events: none; }
.plan-toolbar span:not(.plan-hint) {
  display: inline-flex; align-items: center; min-height: 40px; padding: 0 14px; cursor: pointer;
  font: 600 .72rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted);
  background: var(--panel); border: 1px solid var(--line-strong); border-radius: var(--radius);
}
.plan-toolbar input:checked + span { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.plan-toolbar input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.plan-hint { flex: 1 1 260px; }
.plan-selection {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between;
  padding: 10px 12px; background: var(--accent-soft); border: 1px solid var(--accent); border-radius: var(--radius);
}
.plan-selection .btn { min-height: 40px; padding: 0 12px; }

.dialog { border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 18px; background: var(--panel); color: var(--fg); width: min(520px, calc(100vw - 32px)); }
.dialog::backdrop { background: rgb(20 24 28 / .45); }
.dialog h2 { margin-top: 0; }

/* Rack front view */
.elevation { margin: 0; display: grid; gap: 6px; }
.elevation svg { width: 100%; max-width: 520px; height: auto; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px; box-sizing: border-box; }
.elevation .cell { fill: var(--panel-2); stroke: var(--line-strong); stroke-width: 1px; }
.elevation .cell.line { fill: var(--accent-soft); }
.elevation .cell.hit { fill: var(--accent); stroke: var(--accent); }
.elevation .ground { stroke: var(--fg); stroke-width: 3px; }
.elevation text { font: 13px var(--mono); fill: var(--muted); }
.elevation text.on { fill: var(--fg); font-weight: 700; }
.elevation figcaption { font: .7rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.elevation figcaption strong { color: var(--fg); }
.where { display: grid; gap: 10px; }
.where h2 { margin-bottom: 0; }
.where-text { margin: 0; font-weight: 600; }

.row-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.row-actions form { display: inline; }
.row-actions .link { min-height: 0; padding: 0; }
.table form { margin: 0; }
.table button.link { min-height: 0; }

/* ---------------------------------------------------------------- QR labels */
.labels { display: grid; gap: 4mm; }
.labels.small { grid-template-columns: repeat(3, 1fr); }
.labels.large { grid-template-columns: repeat(2, 1fr); }
.label { display: flex; gap: 3mm; align-items: center; background: #fff; color: #000; border: 1px dashed #999; padding: 3mm; break-inside: avoid; overflow: hidden; }
.labels.small .label { height: 36mm; }
.labels.large .label { height: 70mm; }
.label .qr { flex: none; height: 100%; width: auto; aspect-ratio: 1; }
.label-text { display: grid; gap: 1mm; min-width: 0; font-size: 9pt; line-height: 1.2; }
.label-text span { overflow-wrap: anywhere; }
.label-title { font-size: 11pt; }
.label-code { font-family: var(--mono); font-weight: 700; }
.labels.large .label { flex-direction: column; justify-content: center; text-align: center; }
.labels.large .label .qr { height: 70%; }
.labels.large .label-title { font: 800 24pt var(--mono); letter-spacing: .04em; }
.labels.large .label-text { font-size: 10pt; }
@media (max-width: 600px) { .labels.small { grid-template-columns: repeat(2, 1fr); } .labels.large { grid-template-columns: 1fr; } }

@media print {
  @page { margin: 8mm; }
  .topbar, .no-print, .offline, .admin-nav { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  main { max-width: none; padding: 0; }
  .delivery-note, .owner-group { border-color: #999; }
  .labels.small { grid-template-columns: repeat(3, 1fr); }
  .labels.large { grid-template-columns: repeat(2, 1fr); }
  .label { border-color: #ccc; }
}

/* ---------------------------------------------------------------- rack contents */
.rack-shelves { display: grid; gap: 12px; }
.rack-shelf { padding: 12px; border: 1px solid var(--line-strong); border-bottom: 5px solid var(--rack-edge); border-radius: var(--radius); background: var(--panel); }
.rack-shelf > header { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 8px; }
.arranging .rack-shelf > header { min-height: 54px; }
.rack-shelf h3 { margin: 0; font-size: .9rem; color: var(--rack-emphasis); font-weight: 750; }
.shelf-products { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr)); gap: 10px; min-height: 60px; }
.rack-product { min-width: 0; border-radius: var(--radius); }
.rack-product .rc-item { min-height: 64px; padding: 12px; margin: 0; }
.rack-move-controls { display: grid; gap: 8px; padding: 8px; }
.rack-move-controls summary { cursor: pointer; min-height: 44px; padding: 10px 0; }
.arranging [data-rack-drag] { touch-action: none; cursor: grab; user-select: none; -webkit-user-select: none; }
.arranging [data-rack-drag]:active { cursor: grabbing; }

.rack-enhanced:not(.arranging) .rack-move-controls { display: none; }
.move-selected { outline: 3px solid var(--rack-edge); outline-offset: 2px; }
.rack-shelf.drop-target { outline: 3px solid var(--rack-edge); background: var(--accent-soft); }
.rack-panel[aria-busy="true"] .rack-move-controls, .rack-panel[aria-busy="true"] .shelf-target { opacity: .5; pointer-events: none; }
.rack-panel { overflow-anchor: none; display: grid; gap: 10px; scroll-margin-top: 64px; }
.rack-panel-head { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: end; }
.rack-panel-head h2 { margin: 0 0 4px; color: var(--fg); font-size: .85rem; }
.rack-panel-head p { margin: 0; }
.matrix { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: .85rem; }
.matrix th { font: 600 .66rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); padding: 6px; background: var(--panel-2); }
.matrix tbody th { width: 76px; text-align: left; border-right: 1px solid var(--line-strong); }
.matrix td { vertical-align: top; padding: 6px; border: 1px solid var(--line); height: 64px; }
.matrix td.vacant { background: repeating-linear-gradient(-45deg, transparent 0 6px, var(--panel-2) 6px 8px); }
.matrix tbody tr:last-child td { border-bottom: 3px solid var(--fg); }
.slot { display: block; font-size: .66rem; color: var(--muted); margin-bottom: 4px; }
.rc-item { display: grid; grid-template-columns: 56px minmax(0, 1fr) auto; align-items: center; gap: 4px 10px; padding: 4px 6px; margin-top: 3px; text-decoration: none; color: var(--fg); background: var(--rack-card); border-left: 3px solid var(--rack-edge); border-radius: 2px; box-shadow: inset 0 0 0 1px var(--line-strong); }
.rc-photo { grid-column: 1; grid-row: 1 / 3; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 3px; background: var(--panel); color: var(--muted); }
.rc-photo .thumb { width: 56px; height: 56px; object-fit: contain; background: var(--panel); }
.rc-photo .icon { width: 26px; height: 26px; }
.rc-item:hover { background: var(--rack-card-hover); }
.rack-panel :is(a, button, summary, select):focus-visible { outline: 3px solid var(--rack-edge); outline-offset: 3px; }
.rc-name { font-weight: 600; line-height: 1.25; overflow-wrap: anywhere; }
.rc-qty { font: 700 .82rem var(--mono); white-space: nowrap; color: var(--rack-emphasis); }
.rc-qty.neg { color: var(--warn); }
.rc-owner { grid-column: 2 / -1; font-size: .72rem; color: var(--muted); overflow-wrap: anywhere; }
.rack-list { display: none; }
.rack-list-item { display: grid; gap: 4px; padding: 10px 14px; background: var(--panel); }
@media (max-width: 700px) {
  .rack-matrix { display: none; }
  .rack-list { display: grid; }
}

/* ---------------------------------------------------------------- product photos */
.thumb { display: block; width: 44px; height: 44px; object-fit: cover; border-radius: 3px; border: 1px solid var(--line); background: var(--panel-2); }
.thumb.none { background: repeating-linear-gradient(-45deg, var(--panel-2) 0 5px, var(--panel) 5px 10px); }
.thumb.none.big { width: 160px; height: 160px; }
.table .thumb-col { width: 56px; padding-right: 0; }
.pc-photo { display: block; margin: -14px -16px 12px; background: var(--panel-2); border-bottom: 1px solid var(--line); }
.pc-photo img { display: block; width: 100%; max-height: 300px; object-fit: contain; }
.draft-item-name { grid-template-columns: 44px 1fr; column-gap: 12px; align-items: center; }
.draft-item-name .thumb { grid-row: span 3; }
.draft-item-name > :not(.thumb) { grid-column: 2; }
.image-edit { display: flex; flex-wrap: wrap; gap: 16px; align-items: start; }
.image-edit > form { flex: 1 1 260px; }
.image-edit-preview img { display: block; width: 160px; height: 160px; object-fit: cover; border: 1px solid var(--line); border-radius: var(--radius); }

/* ---------------------------------------------------------------- statistics */
:root { --chart: #336fa3; }                                   /* validated: L/chroma/contrast vs #f8f9fa */
@media (prefers-color-scheme: dark) { :root { --chart: #5a93cc; } }  /* validated vs #252a30 */
.stats { display: grid; gap: 14px; }
.stats > p { margin: 0; }
/* Cell lines drawn by each tile (right + bottom), clipped at the outer border – an empty last cell stays clean. */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.kpi { display: grid; gap: 2px; align-content: start; padding: 14px; box-shadow: 1px 0 0 var(--line), 0 1px 0 var(--line); }
.kpi-label { font-size: .85rem; color: var(--muted); }
.kpi-value { font: 600 1.9rem/1.15 var(--sans); font-variant-numeric: proportional-nums; }
.kpi-delta { font-size: .78rem; color: var(--muted); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 0 20px; }

.chart { margin: 0; padding: 14px 16px 10px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); display: grid; gap: 10px; }
.chart-title { font-weight: 600; }
.chart-plot { position: relative; height: 200px; margin: 8px 0 22px 30px; }
.chart-grid { position: absolute; left: 0; right: 0; border-top: 1px solid var(--line); }
.chart-grid span { position: absolute; right: calc(100% + 6px); top: -.6em; font: .72rem var(--mono); color: var(--muted); }
.chart-cols { position: absolute; inset: 0; display: flex; align-items: flex-end; gap: 2px; }
.chart-col { position: relative; flex: 1; height: 100%; display: flex; align-items: flex-end; justify-content: center; outline: none; }
.chart-bar { position: relative; width: 100%; max-width: 24px; min-height: 0; background: var(--chart); border-radius: 4px 4px 0 0; }
.chart-bar.zero { height: 0 !important; }
.chart-col:hover .chart-bar, .chart-col:focus-visible .chart-bar { filter: brightness(1.2); }
.chart-col:focus-visible { background: var(--panel-2); }
.chart-peak { position: absolute; bottom: calc(100% + 3px); left: 50%; transform: translateX(-50%); font: 600 .75rem var(--sans); color: var(--fg); }
.chart-x { position: absolute; top: calc(100% + 4px); left: 50%; transform: translateX(-50%); font: .68rem var(--mono); color: var(--muted); white-space: nowrap; }
.chart-col:hover::after, .chart-col:focus-visible::after {
  content: attr(data-tip); position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%); z-index: 2;
  padding: 6px 8px; font-size: .78rem; white-space: nowrap; pointer-events: none;
  color: var(--fg); background: var(--panel); border: 1px solid var(--line-strong); border-radius: var(--radius); box-shadow: 0 4px 12px rgb(0 0 0 / .15);
}
.chart-col:first-child:hover::after, .chart-col:first-child:focus-visible::after { left: 0; transform: none; }
.chart-col:last-child:hover::after, .chart-col:last-child:focus-visible::after { left: auto; right: 0; transform: none; }
@media (max-width: 600px) { .chart-x.alt { display: none; } }
.chart-table summary { cursor: pointer; font: 600 .72rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.chart-table .table { margin-top: 8px; }

/* ---------------------------------------------------------------- public front page */
.site-intro h1 { margin-bottom: 6px; }
.site-intro p { margin: 0; color: var(--muted); }
.site-info { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.site-info li > * { display: flex; align-items: center; gap: 14px; padding: 14px 16px; min-height: 64px; background: var(--panel); color: var(--fg); text-decoration: none; }
.site-info a:hover { background: var(--panel-2); }
.site-info .icon { width: 26px; height: 26px; color: var(--accent); stroke-width: 1.7; }
.site-info span { display: grid; gap: 2px; }
.site-info small { font: .72rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.site-info a small { color: var(--link); }
form.card > h2 { margin: 0; }

.who-picks { display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: center; justify-content: space-between; padding: 10px 14px; background: var(--accent-soft); border: 1px solid var(--accent); border-radius: var(--radius); }
.who-picks form { margin: 0; }
.who-picks .link { min-height: 32px; }

/* ---------------------------------------------------------------- movement log */
.tag.mv { font-size: .68rem; }
.tag.mv.in { color: var(--ok); background: var(--ok-bg); }
.tag.mv.out { color: var(--link); background: var(--accent-soft); }
.tag.mv.fix { color: var(--warn); background: var(--warn-bg); }
.movements .mv-day th {
  position: static; padding: 14px 10px 6px; background: var(--panel); border-bottom: 1px solid var(--line-strong);
  font: 600 .78rem var(--sans); text-transform: none; letter-spacing: 0; color: var(--fg);
}
.movements .mv-day th .muted { font-weight: 400; }
.movements tbody:first-of-type .mv-day th { padding-top: 8px; }
.movements .qty { font-weight: 700; }
.mv-totals { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; }
.mv-total { display: inline-flex; gap: 6px; align-items: center; font-family: var(--mono); font-size: .88rem; }
details.history > summary { margin-bottom: 0; }
details.history[open] { display: grid; gap: 10px; }
.show-sm-inline { display: none; }
@media (max-width: 600px) {
  /* Movement rows become compact cards: time · type · quantity / product / who / reason · stock after. */
  .movements thead { display: none; }
  .movements, .movements tbody { display: block; }
  .movements tr:not(.mv-day) {
    display: grid; grid-template-columns: auto 1fr auto; gap: 2px 10px; align-items: center;
    grid-template-areas: "time type qty" "prod prod prod" "who who who" "why why bal";
    padding: 8px 10px; border-bottom: 1px solid var(--line);
  }
  .movements tr:not(.mv-day) td { padding: 0; border: 0; text-align: left; }
  .movements .mv-day, .movements .mv-day th { display: block; }
  .movements .t-time { grid-area: time; }
  .movements .t-type { grid-area: type; }
  .movements .t-qty { grid-area: qty; justify-self: end; }
  .movements .t-prod { grid-area: prod; }
  .movements .t-who { grid-area: who; }
  .movements .t-why { grid-area: why; }
  .movements .t-bal { grid-area: bal; justify-self: end; white-space: nowrap; }
  .movements .t-who br, .movements .t-prod br, .movements .t-why br { display: none; }
  .movements .t-who .muted::before, .movements .t-prod .muted::before, .movements .t-why .muted::before { content: " · "; }
  .show-sm-inline { display: inline; }
}
.steps { margin: 0; padding-left: 1.2rem; display: grid; gap: 8px; }
code { font-family: var(--mono); font-size: .85em; background: var(--panel-2); padding: 1px 4px; border-radius: 3px; overflow-wrap: anywhere; }

/* ---------------------------------------------------------------- doors, outline drawing, shape wizard */
.plan .door-gap { stroke: var(--panel); stroke-width: 9px; vector-effect: non-scaling-stroke; }
.plan .door-jamb { stroke: var(--fg); stroke-width: 3px; vector-effect: non-scaling-stroke; }
.plan .door-label { fill: var(--accent); font-family: var(--mono); font-weight: 700; paint-order: stroke; stroke: var(--panel); stroke-width: 3px; vector-effect: non-scaling-stroke; }
.plan .outline-draft { fill: rgb(127 127 127 / .10); stroke: var(--accent); stroke-width: 2.5px; stroke-dasharray: 8 4; vector-effect: non-scaling-stroke; stroke-linejoin: miter; }
.plan .outline-rubber { stroke: var(--accent); stroke-width: 2px; vector-effect: non-scaling-stroke; }
.plan .outline-start { fill: var(--accent); }
.plan .outline-start.closable { fill: var(--ok); }
.plan .draft-label { fill: var(--fg); font-family: var(--mono); font-weight: 700; paint-order: stroke; stroke: var(--panel); stroke-width: 4px; vector-effect: non-scaling-stroke; pointer-events: none; }
.plan .door-preview { stroke: var(--accent); stroke-width: 7px; vector-effect: non-scaling-stroke; opacity: .75; }
.plan.editable[data-mode=outline], .plan.editable[data-mode=door] { cursor: crosshair; }
.plan.editable[data-mode=outline] .rack, .plan.editable[data-mode=door] .rack { pointer-events: none; }
.shape-forms { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.shape-forms form { align-content: start; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel-2); }
.plan .draft-grid { pointer-events: none; opacity: .8; }

/* ---------------------------------------------------------------- e-mail templates */
textarea { font: .9rem/1.5 var(--mono); padding: 10px 12px; min-height: 0; resize: vertical; text-transform: none; letter-spacing: 0; }
.template-edit { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 14px; align-items: start; }
.mail-preview { margin: 0; white-space: pre-wrap; font: .88rem/1.5 var(--mono); background: var(--panel-2); padding: 12px; border-radius: var(--radius); border: 1px solid var(--line); }
.receipt-hash { overflow-wrap: anywhere; font-size: .78rem; }

.warehouse-switcher { display: flex; flex-wrap: wrap; gap: .75rem; align-items: end; margin-bottom: 1rem; }
.warehouse-switcher label { flex: 1; min-width: 12rem; }

.plan .door-hit { stroke: transparent; stroke-width: 24px; vector-effect: non-scaling-stroke; pointer-events: stroke; }
.plan.editable[data-mode=select] .door { cursor: grab; touch-action: none; }
.plan.editable .door:focus .door-jamb { stroke: var(--accent); }
.plan.editable .door[aria-busy=true] { opacity: .6; cursor: wait; }
.plan.editable:not([data-mode=select]) .door { pointer-events: none; }