:root {
  --bg: #f4f6f8; --panel: #ffffff; --line: #d9dee4; --text: #16202a; --muted: #5c6b7a;
  --accent: #1f7a4d; --accent-2: #2b9a63; --danger: #b3261e; --warn: #a35a00;
  --radius: 12px; --tap: 48px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1317; --panel: #171d23; --line: #2a333d; --text: #e8edf2; --muted: #93a1af;
    --accent: #35b375; --accent-2: #47c98a; --danger: #ff6b60; --warn: #f0a93b;
  }
}
[data-theme="dark"] {
  --bg: #0f1317; --panel: #171d23; --line: #2a333d; --text: #e8edf2; --muted: #93a1af;
  --accent: #35b375; --accent-2: #47c98a; --danger: #ff6b60; --warn: #f0a93b;
}
[data-theme="light"] {
  --bg: #f4f6f8; --panel: #ffffff; --line: #d9dee4; --text: #16202a; --muted: #5c6b7a;
  --accent: #1f7a4d; --accent-2: #2b9a63; --danger: #b3261e; --warn: #a35a00;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text);
  font: 16px/1.45 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
a { color: var(--accent); }
button { font: inherit; }
.app { max-width: 1100px; margin: 0 auto; padding: 12px 12px 90px; }
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; background: color-mix(in srgb, var(--panel) 92%, transparent);
  border-bottom: 1px solid var(--line); backdrop-filter: blur(8px); }
.topbar .brand { font-weight: 700; letter-spacing: .2px; }
.topbar .spacer { flex: 1; }
.topbar .who { color: var(--muted); font-size: 14px; max-width: 40vw; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; }
.icon-btn { background: transparent; border: 1px solid var(--line); color: var(--text);
  border-radius: 10px; min-width: 40px; height: 40px; cursor: pointer; }
.icon-btn:hover { border-color: var(--accent); }
h1 { font-size: 22px; margin: 16px 0 10px; }
h2 { font-size: 18px; margin: 18px 0 8px; }
.muted { color: var(--muted); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; margin: 10px 0; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: var(--tap); padding: 10px 16px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--panel); color: var(--text); cursor: pointer; text-decoration: none; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn.primary:hover { background: var(--accent-2); }
.btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--line)); }
.btn.small { min-height: 36px; padding: 6px 10px; font-size: 14px; }
.btn.block { width: 100%; }
.list { display: grid; gap: 10px; }
.item { display: block; background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px; text-decoration: none; color: var(--text); }
.item:hover { border-color: var(--accent); }
.item .t { font-weight: 600; font-size: 17px; }
.item .s { color: var(--muted); font-size: 14px; margin-top: 4px; }
.pill { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); }
.pill.warn { background: color-mix(in srgb, var(--warn) 16%, transparent); color: var(--warn); }
label.f { display: block; margin: 10px 0; }
label.f span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input, select, textarea { width: 100%; font: inherit; color: var(--text); background: var(--panel);
  border: 1px solid var(--line); border-radius: 10px; padding: 12px; min-height: var(--tap); }
textarea { min-height: 84px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-color: var(--accent); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 12px; }
@media (max-width: 640px) { .grid3 { grid-template-columns: 1fr 1fr; } .grid2 { grid-template-columns: 1fr; } }
.tabs { display: flex; gap: 6px; overflow-x: auto; padding: 4px 0; }
.tab { border: 1px solid var(--line); background: var(--panel); color: var(--text);
  border-radius: 999px; padding: 9px 14px; white-space: nowrap; cursor: pointer; }
.tab.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table.t { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
table.t th, table.t td { border-bottom: 1px solid var(--line); padding: 6px; text-align: left; vertical-align: top; }
table.t th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .3px; }
table.t tr:last-child td { border-bottom: 0; }
table.t input, table.t select, table.t textarea { padding: 8px; min-height: 40px; font-size: 14px; }
table.t textarea { min-height: 40px; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 50;
  background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--accent);
  border-radius: 10px; padding: 12px 16px; max-width: min(560px, 92vw); box-shadow: 0 8px 30px rgba(0,0,0,.25); }
.toast.err { border-left-color: var(--danger); }
.toast.warn { border-left-color: var(--warn); }
.notes { margin: 10px 0 0; padding: 10px 12px 10px 28px; background: color-mix(in srgb, var(--warn) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--warn) 35%, var(--line)); border-radius: 10px; font-size: 14px; }
.notes li { margin: 3px 0; }
.login { max-width: 430px; margin: 6vh auto; }
.login h1 { text-align: center; }
.link-btn { background: none; border: 0; color: var(--accent); cursor: pointer; padding: 6px; }
.sticky-actions { position: sticky; bottom: 0; background: linear-gradient(transparent, var(--bg) 30%);
  padding: 12px 0 6px; display: flex; gap: 10px; }
.sticky-actions .btn { flex: 1; }
.field-mode { --tap: 56px; }
.field-mode input, .field-mode select, .field-mode textarea { font-size: 18px; }
.field-mode .btn { font-size: 17px; }
.crumbs { font-size: 14px; color: var(--muted); margin-top: 12px; }
.crumbs a { color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 34px 12px; border: 1px dashed var(--line); border-radius: var(--radius); }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--line);
  border-top-color: var(--accent); border-radius: 50%; animation: sp .7s linear infinite; vertical-align: -3px; }
@keyframes sp { to { transform: rotate(360deg); } }
.hidden { display: none !important; }

/* Телефон: таблицы разрезов и образцов превращаются в карточки —
   в поле некогда возиться с горизонтальной прокруткой. */
@media (max-width: 640px) {
  .table-wrap { border: 0; border-radius: 0; overflow: visible; }
  table.t { min-width: 0; display: block; }
  table.t thead { display: none; }
  table.t tbody { display: block; }
  table.t tr { display: block; border: 1px solid var(--line); border-radius: var(--radius);
    padding: 10px; margin-bottom: 12px; background: var(--panel); }
  table.t td { display: grid; grid-template-columns: 118px 1fr; gap: 8px; align-items: center;
    border: 0; padding: 4px 0; }
  table.t td::before { content: attr(data-label); font-size: 12px; color: var(--muted);
    text-transform: uppercase; letter-spacing: .2px; }
  table.t td:last-child { display: flex; justify-content: flex-end; }
  table.t td:last-child::before { content: ""; }
  table.t td input, table.t td select, table.t td textarea { width: 100% !important; }
  table.t td[data-label="Описание слоя"] { grid-template-columns: 1fr; }
  table.t td[data-label="Описание слоя"]::before { margin-bottom: 2px; }
}