:root {
  --board: #E4E8EA;
  --board-grid: rgba(62, 92, 118, 0.08);
  --paper: #FFFFFF;
  --ink: #1D2327;
  --ink-soft: #55616A;
  --rule: #C7CFD4;
  --dim: #D1453B;
  --steel: #3E5C76;
  --steel-tint: #E1E9EF;
  --laminate: #EFEFEC;
  --warn-ink: #7A5200;
  --warn-bg: #FDF1D2;
  --err-ink: #A1261D;
  --err-bg: #FBE7E4;
  --ok: #2E6B45;
  --r-s: 4px;
  --r-m: 8px;
  --ui: "Barlow", "Segoe UI", system-ui, sans-serif;
  --ui-cond: "Barlow Semi Condensed", "Arial Narrow", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font: 15px/1.45 var(--ui);
  color: var(--ink);
  background-color: var(--board);
  background-image:
    linear-gradient(var(--board-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--board-grid) 1px, transparent 1px);
  background-size: 24px 24px;
}

:focus-visible { outline: 3px solid var(--steel); outline-offset: 2px; }

/* ---------- Fejléc ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  flex-wrap: wrap;
  padding: 14px 24px;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.title h1 { margin: 0; font: 700 24px/1.1 var(--ui-cond); }
.title p { margin: 2px 0 0; color: var(--ink-soft); font-size: 14px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }

.btn {
  font: 600 15px/1 var(--ui-cond);
  letter-spacing: 0.01em;
  padding: 11px 16px;
  border: 1px solid var(--ink);
  border-radius: var(--r-s);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}
.btn:hover { background: var(--steel-tint); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--steel); border-color: var(--steel); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-submit { background: var(--steel); border-color: var(--steel); color: #fff; }
.btn-submit:hover { background: #2F4A61; border-color: #2F4A61; }
.btn-submit.is-done { background: var(--ok); border-color: var(--ok); }

/* ---------- Munkaterület ---------- */

.workspace {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(320px, 380px) 1fr;
}

.panel {
  background: var(--paper);
  border-right: 1px solid var(--rule);
}

.step { padding: 18px 22px 20px; border-bottom: 1px solid var(--rule); }
.step h2 {
  display: flex;
  align-items: center;
  margin: 0 0 12px;
  font: 600 18px/1.2 var(--ui-cond);
}
.step-n {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-right: 10px;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  font: 600 13px/1 var(--ui-cond);
}

.hint { margin: 0 0 12px; color: var(--ink-soft); font-size: 13.5px; }

/* Forma választó */
.shape-picker { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.shape-picker button {
  display: grid;
  justify-items: center;
  gap: 4px;
  padding: 10px 6px 8px;
  border: 1px solid var(--rule);
  border-radius: var(--r-m);
  background: var(--paper);
  color: var(--ink);
  font: 600 15px/1.1 var(--ui-cond);
  cursor: pointer;
}
.shape-picker svg { width: 100%; height: 44px; fill: var(--laminate); stroke: var(--ink); stroke-width: 2; stroke-linejoin: round; }
.shape-picker button:hover { border-color: var(--steel); }
.shape-picker button[aria-checked="true"] {
  border-color: var(--steel);
  box-shadow: inset 0 0 0 1.5px var(--steel);
  background: var(--steel-tint);
}
.shape-picker button[aria-checked="true"] svg { fill: #fff; }

.check { display: flex; align-items: center; gap: 8px; margin-top: 12px; font-size: 14px; cursor: pointer; }
.check input { width: 17px; height: 17px; accent-color: var(--ink); }

/* Mezők */
.fields { display: grid; gap: 12px; }
.field { display: grid; gap: 4px; margin: 0; padding: 0; border: 0; min-width: 0; }
.field-label { padding: 0; font-size: 13px; font-weight: 500; color: var(--ink-soft); }
.field input,
.field textarea {
  width: 100%;
  font: 15px/1.3 var(--ui);
  color: var(--ink);
  padding: 8px 10px;
  border: 1px solid var(--rule);
  border-radius: var(--r-s);
  background: var(--paper);
}
.field textarea { resize: vertical; }
.field input:hover, .field textarea:hover { border-color: var(--ink-soft); }
.field input[aria-invalid="true"] { border-color: var(--err-ink); background: var(--err-bg); }

.with-unit { position: relative; display: block; }
.with-unit input { padding-right: 40px; font-variant-numeric: tabular-nums; }
.with-unit::after {
  content: "mm";
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-soft);
  font-size: 13px;
  pointer-events: none;
}

.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row-zip { display: grid; grid-template-columns: 110px 1fr; gap: 10px; }

/* Szegmentált választó */
.seg {
  display: inline-flex;
  border: 1px solid var(--rule);
  border-radius: var(--r-s);
  overflow: hidden;
  background: var(--paper);
}
.seg label { position: relative; }
.seg label + label { border-left: 1px solid var(--rule); }
.seg input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.seg span {
  display: block;
  padding: 6px 10px;
  font: 600 14px/1.2 var(--ui-cond);
  text-align: center;
  cursor: pointer;
}
.seg label:hover span { background: var(--steel-tint); }
.seg input:checked + span { background: var(--ink); color: #fff; }
.seg input:focus-visible + span { outline: 3px solid var(--steel); outline-offset: -3px; }
.seg-wide { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
.seg-wide span { padding: 8px 8px; }

.edge-list { display: grid; }
.edge-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  border-top: 1px solid var(--laminate);
}
.edge-row:first-child { border-top: 0; }
.edge-name { font-size: 14px; line-height: 1.25; }
.edge-len { display: block; color: var(--ink-soft); font-size: 12.5px; font-variant-numeric: tabular-nums; }

.corner { margin: 0 0 12px; padding: 0; border: 0; }
.corner:last-child { margin-bottom: 0; }
.corner legend { padding: 0; margin-bottom: 6px; font-size: 14px; font-weight: 600; }

/* ---------- Rajzlap ---------- */

.stage { display: flex; flex-direction: column; gap: 14px; padding: 24px; min-width: 0; }

.sheet {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 34px 16px 16px;
}
.sheet-label { position: absolute; top: 8px; left: 12px; font: 700 14px/1 var(--ui-cond); }

/* A rajz kitölti a lap teljes magasságát, és arányosan méreteződik. */
.drawing { position: relative; flex: 1 1 auto; min-height: 240px; }
.drawing svg { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }
.drawing.is-stale { opacity: 0.3; pointer-events: none; }

.drawing .edge-g { cursor: pointer; outline: none; }
.drawing .edge-g:hover .edge-line,
.drawing .edge-g.is-hot .edge-line,
.drawing .edge-g:focus-visible .edge-line { stroke: var(--steel); stroke-width: 8; }
.drawing .edge-g:hover .edge-hint,
.drawing .edge-g.is-hot .edge-hint { stroke-opacity: 1; }
.drawing .corner-hit { cursor: pointer; outline: none; }
.drawing .corner-hit:hover,
.drawing .corner-hit:focus-visible { fill: rgba(62, 92, 118, 0.1); stroke: var(--steel); stroke-width: 2; stroke-dasharray: 6 5; }
.drawing .dim-g { cursor: text; outline: none; }
.drawing .dim-g:hover text,
.drawing .dim-g.is-hot text,
.drawing .dim-g:focus-visible text { fill: var(--steel); }
.drawing .dim-g:hover line,
.drawing .dim-g.is-hot line,
.drawing .dim-g:focus-visible line { stroke: var(--steel); stroke-width: 3; }

.drawing-error {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: var(--r-s);
  background: var(--err-bg);
  color: var(--err-ink);
  font-size: 14px;
}

.inline-edit {
  position: absolute;
  width: 120px;
  padding: 6px 8px;
  font: 700 18px/1.2 var(--ui);
  text-align: center;
  border: 2px solid var(--steel);
  border-radius: var(--r-s);
  box-shadow: 0 6px 16px rgba(29, 35, 39, 0.18);
}

.below { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 24px; }
.below .hint { margin: 0; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 20px; margin: 0; padding: 0; list-style: none; font: 600 14px/1 var(--ui-cond); }
.legend li { display: flex; align-items: center; gap: 6px; }
.legend svg { height: 20px; width: auto; fill: #fff; stroke: var(--ink); stroke-width: 2; }

.summary { margin-top: 16px; padding-top: 12px; border-top: 1px dashed var(--rule); }
.summary:empty { display: none; }
.summary h3 { margin: 0 0 6px; font: 600 15px/1.2 var(--ui-cond); }
.summary table { border-collapse: collapse; font-size: 14px; }
.summary td { padding: 4px 16px 4px 0; vertical-align: top; }
.summary .num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.summary .totals { margin: 8px 0 0; font-size: 14px; color: var(--ink-soft); }
.summary .totals strong { color: var(--ink); font-variant-numeric: tabular-nums; }

/* ---------- Visszajelzés ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  max-width: min(92vw, 560px);
  padding: 12px 16px;
  border-radius: var(--r-s);
  background: var(--ink);
  color: #fff;
  font-size: 14px;
  box-shadow: 0 8px 24px rgba(29, 35, 39, 0.25);
  z-index: 10;
}
.toast.is-warn { background: var(--warn-bg); color: var(--warn-ink); border: 1px solid var(--warn-ink); }
.toast.is-error { background: var(--err-bg); color: var(--err-ink); border: 1px solid var(--err-ink); }

.dialog {
  width: min(92vw, 440px);
  padding: 22px 24px 20px;
  border: 1px solid var(--ink);
  border-radius: var(--r-m);
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 16px 40px rgba(29, 35, 39, 0.25);
}
.dialog::backdrop { background: rgba(29, 35, 39, 0.45); }
.dialog h2 { margin: 0 0 6px; font: 700 21px/1.2 var(--ui-cond); }
.dialog p { margin: 0 0 14px; color: var(--ink-soft); font-size: 14px; }
.dialog dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 0 0 20px; font-size: 14px; }
.dialog dt { color: var(--ink-soft); }
.dialog dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin: 0; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Elrendezés ---------- */

@media (min-width: 900px) {
  body { height: 100vh; overflow: hidden; }
  .panel, .stage { overflow-y: auto; }
}

@media (max-width: 899px) {
  .topbar { padding-inline: 16px; }
  .workspace { grid-template-columns: 1fr; }
  .panel { border-right: 0; border-top: 1px solid var(--rule); }
  .stage { order: -1; padding: 16px; }
  .drawing { flex: none; min-height: 0; }
  .drawing svg { position: static; height: auto; }
  /* Keskeny kijelzőn a rajz erősen kicsinyül, ezért a méretfeliratok nagyobbak. */
  .drawing .dim-g text { font-size: 38px; }
  .step { padding-inline: 16px; }
}