/* Шур · Кривые — веб-версия */
@font-face { font-family: "Golos Text"; font-weight: 400; font-display: swap;
  src: url(fonts/golos-text-cyrillic-400-normal.woff2) format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: "Golos Text"; font-weight: 400; font-display: swap;
  src: url(fonts/golos-text-latin-400-normal.woff2) format("woff2"); }
@font-face { font-family: "Golos Text"; font-weight: 500; font-display: swap;
  src: url(fonts/golos-text-cyrillic-500-normal.woff2) format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: "Golos Text"; font-weight: 500; font-display: swap;
  src: url(fonts/golos-text-latin-500-normal.woff2) format("woff2"); }
@font-face { font-family: "Golos Text"; font-weight: 600; font-display: swap;
  src: url(fonts/golos-text-cyrillic-600-normal.woff2) format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: "Golos Text"; font-weight: 600; font-display: swap;
  src: url(fonts/golos-text-latin-600-normal.woff2) format("woff2"); }
@font-face { font-family: "Golos Text"; font-weight: 700; font-display: swap;
  src: url(fonts/golos-text-cyrillic-700-normal.woff2) format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: "Golos Text"; font-weight: 700; font-display: swap;
  src: url(fonts/golos-text-latin-700-normal.woff2) format("woff2"); }

:root {
  --navy: #102d45;          /* фирменный цвет Шур */
  --navy-2: #1d4867;
  --ink: #15222d;
  --muted: #5b6b78;
  --paper: #f2f6f8;         /* фон страницы — холодная «миллиметровка» */
  --sheet: #ffffff;
  --rule: #d5e0e6;
  --grid: #c9e1e8;          /* сетка клетчатки */
  --water: #0f7a8a;         /* действие */
  --water-dk: #0b6170;
  --near: #dcefff;          /* как в программе: ближе к эталону */
  --fail-bg: #f6d3d0;
  --fail: #8b1a1a;
  --warn-bg: #fff4d6;
  --warn: #6b4e00;
  --r-sm: 4px;
  --r-md: 8px;
  font-size: 15px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  font-family: "Golos Text", "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
}
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--water); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------- шапка */
.bar {
  background: var(--navy); color: #fff;
  display: flex; align-items: center; gap: 14px;
  padding: 10px 20px;
}
.bar img { width: 30px; height: 30px; }
.bar h1 { font-size: 1.15rem; font-weight: 600; margin: 0; letter-spacing: .01em; }
.bar h1 span { font-weight: 400; color: #c6d6e4; }
.bar .ver { color: #c6d6e4; font-size: .85rem; }
.bar .norm { margin-left: auto; color: #c6d6e4; font-size: .85rem; text-align: right; }

/* ---------- раскладка */
.layout {
  display: grid; grid-template-columns: minmax(330px, 380px) minmax(0, 1fr);
  gap: 0; min-height: calc(100vh - 50px);
}
.setup {
  background: var(--sheet); border-right: 1px solid var(--rule);
  display: flex; flex-direction: column; min-width: 0;
}
.setup-scroll { padding: 6px 18px 18px; overflow-y: auto; flex: 1; }
@media (min-width: 921px) {
  /* панель ввода остаётся на месте, кнопка «Рассчитать» всегда видна */
  .setup { position: sticky; top: 0; height: 100vh; align-self: start; }
}
.step { padding: 14px 0 16px; border-bottom: 1px solid var(--rule); }
.step:last-child { border-bottom: 0; }
.step > h2 {
  font-size: .98rem; font-weight: 600; margin: 0 0 10px;
  display: flex; align-items: baseline; gap: 10px;
}
.step > h2 .n {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  background: var(--navy); color: #fff; font-size: .78rem;
  display: inline-grid; place-items: center; transform: translateY(-1px);
}
.hint { color: var(--muted); font-size: .85rem; margin: 4px 0 0; }
.field { display: grid; gap: 4px; margin-bottom: 10px; }
.field > span { font-size: .87rem; color: var(--muted); }
.row { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }
.row > .field { flex: 1 1 120px; }
input[type=text], input[type=number], select, textarea {
  border: 1px solid #b9c7d0; border-radius: var(--r-sm); background: #fff;
  padding: 6px 8px; min-width: 0; width: 100%;
}
input:disabled, select:disabled { background: #eef2f4; color: var(--muted); }
textarea {
  font-variant-numeric: tabular-nums; resize: vertical; min-height: 150px;
  line-height: 1.35; tab-size: 10;
}
label.chk { display: flex; gap: 8px; align-items: flex-start; padding: 3px 0; cursor: pointer; }
label.chk input { margin-top: 3px; accent-color: var(--navy); }
label.chk small { display: block; color: var(--muted); }

.seg { display: inline-flex; border: 1px solid var(--navy); border-radius: var(--r-sm); overflow: hidden; width: 100%; }
.seg button {
  flex: 1; border: 0; background: #fff; padding: 6px 4px; cursor: pointer;
  border-right: 1px solid var(--navy);
}
.seg button:last-child { border-right: 0; }
.seg button[aria-pressed=true] { background: var(--navy); color: #fff; }
.sub { margin-top: 12px; padding: 10px 12px; background: #f6f9fa; border-left: 3px solid var(--navy-2); }
.sub[hidden] { display: none; }

.btn {
  border: 1px solid var(--navy); background: #fff; color: var(--navy);
  border-radius: var(--r-sm); padding: 6px 12px; cursor: pointer;
}
.btn:hover { background: #eef4f8; }
.btn.primary { background: var(--water); border-color: var(--water); color: #fff; font-weight: 600; }
.btn.primary:hover { background: var(--water-dk); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.small { padding: 3px 8px; font-size: .87rem; }
.btn.link { border: 0; background: none; color: var(--water-dk); padding: 2px 0; text-decoration: underline; }

.series-sum { font-size: .87rem; color: var(--muted); margin-top: 6px; min-height: 1.3em; }
.series-sum b { color: var(--ink); font-weight: 500; }
.picklist {
  max-height: 210px; overflow-y: auto; border: 1px solid var(--rule); background: #fff;
  padding: 4px 8px; columns: 2; column-gap: 14px;
}
.picklist label { break-inside: avoid; font-size: .87rem; padding: 1px 0; }

details.tools { margin-top: 4px; }
details.tools summary { cursor: pointer; font-weight: 600; padding: 4px 0; }
.over-row { display: grid; grid-template-columns: 1fr 70px auto; gap: 6px; margin: 6px 0; align-items: center; }
.over-row.pt { grid-template-columns: 1fr 58px 64px auto; }
.over-row select.mode { grid-column: 1 / -2; }
.over-row .del { border: 0; background: none; color: var(--fail); cursor: pointer; font-size: 1.1rem; }

.go {
  padding: 12px 18px; border-top: 1px solid var(--rule); background: var(--sheet);
  display: flex; gap: 12px; align-items: center;
}
.go .btn.primary { padding: 9px 22px; font-size: 1rem; }
.go .auto { font-size: .82rem; color: var(--muted); }

/* ---------- результаты */
.results { min-width: 0; padding: 14px 20px 30px; }
.tabs { display: flex; gap: 2px; border-bottom: 2px solid var(--navy); overflow-x: auto; }
.tabs button {
  border: 0; background: transparent; padding: 8px 14px; cursor: pointer; white-space: nowrap;
  border-radius: var(--r-sm) var(--r-sm) 0 0; color: var(--navy-2);
}
.tabs button[aria-selected=true] { background: var(--navy); color: #fff; }
.panel { background: var(--sheet); border: 1px solid var(--rule); border-top: 0; padding: 14px 16px; }
.panel[hidden] { display: none; }

.msg { border-radius: var(--r-sm); padding: 8px 12px; margin: 10px 0 0; font-size: .92rem; }
.msg.err { background: var(--fail-bg); color: var(--fail); }
.msg.warn { background: var(--warn-bg); color: var(--warn); }
.msg.info { background: #e8f1f6; color: var(--navy); }
.msg ul { margin: 0; padding-left: 18px; }

.empty { padding: 60px 20px; text-align: center; color: var(--muted); }
.empty h2 { color: var(--navy); font-weight: 600; font-size: 1.25rem; margin: 0 0 6px; }
.empty p { max-width: 520px; margin: 0 auto 14px; }

#plot { width: 100%; height: min(70vh, 640px); min-height: 420px; }
.plot-foot { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: .87rem; color: var(--muted); margin-top: 6px; }

.status { font-size: .88rem; color: var(--muted); margin: 0 0 8px; display: flex; gap: 10px; align-items: center; }
.status .bar-mini { flex: none; width: 120px; height: 6px; background: #e3ebf0; border-radius: 3px; overflow: hidden; }
.status .bar-mini i { display: block; height: 100%; background: var(--water); width: 0; transition: width .3s; }

.tbl-wrap { overflow-x: auto; margin: 6px 0 14px; }
table.t { border-collapse: collapse; font-size: .87rem; min-width: 100%; }
table.t th, table.t td { border: 1px solid #c4d1d9; padding: 4px 7px; text-align: center; white-space: nowrap; }
table.t th { background: #e9eff3; font-weight: 600; }
table.t thead tr.grp th { background: #cfd8e3; }
table.t thead tr.grp th:first-child { background: #e3e3e3; }
table.t td:first-child { text-align: left; }
table.t tbody tr:hover td { outline: 1px solid rgba(16, 45, 69, .25); outline-offset: -1px; }
.legend-note { font-size: .84rem; color: var(--muted); display: flex; gap: 16px; flex-wrap: wrap; }
.legend-note i { display: inline-block; width: 14px; height: 10px; vertical-align: -1px; margin-right: 5px; border: 1px solid #b7c4cc; }

.two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.chart-sm { width: 100%; height: 300px; }
#extStats, #chkStats { white-space: pre-wrap; word-spacing: .05em; }
.notes { font-size: .87rem; color: var(--ink); padding-left: 18px; }
h3 { font-size: 1rem; margin: 14px 0 6px; color: var(--navy); }
h3:first-child { margin-top: 0; }

.k0grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 8px 0; }
.k0grid fieldset { border: 1px solid var(--rule); border-radius: var(--r-sm); margin: 0; padding: 8px 12px 10px; min-width: 0; }
.k0grid legend { font-weight: 600; color: var(--navy); padding: 0 4px; }
.k0val { color: var(--navy-2); font-weight: 500; margin: 0 0 8px; }
.k0res { font-size: 1.15rem; font-weight: 600; color: var(--navy); margin: 8px 0; }
table.t.k0d th, table.t.k0d td { white-space: normal; }
@media (max-width: 1180px) { .k0grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 700px) { .k0grid { grid-template-columns: 1fr; } }
.export { display: grid; gap: 14px; max-width: 720px; }
.export .btns { display: flex; gap: 10px; flex-wrap: wrap; }
.foot { color: var(--muted); font-size: .8rem; padding: 10px 20px 20px; }

/* ---------- узкий экран */
@media (max-width: 920px) {
  .layout { grid-template-columns: 1fr; }
  .setup { border-right: 0; border-bottom: 1px solid var(--rule); }
  .setup-scroll { overflow: visible; }
  .go { position: sticky; bottom: 0; z-index: 5; box-shadow: 0 -2px 8px rgba(16, 45, 69, .12); }
  .results { padding: 12px 10px 24px; }
  .two { grid-template-columns: 1fr; }
  .bar .norm { display: none; }
}
@media (max-width: 480px) {
  :root { font-size: 14px; }
  .bar { padding: 8px 12px; }
  .bar .ver { display: none; }
  .setup-scroll { padding: 4px 14px 14px; }
  .panel { padding: 10px 8px; }
  #plot { height: 440px; min-height: 380px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }