:root {
  --paper: #f5f1e8;
  --sheet: #fffdf7;
  --ink: #1c2320;
  --muted: #6a706b;
  --rule: #e2dccd;
  --rule-strong: #cfc6b2;
  --green: #1d5c45;
  --green-soft: #e3eee7;
  --brick: #a13d26;
  --brick-soft: #f6e4dd;
  --focus: #2f6fd6;
  --sans: "Golos Text", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", monospace;
  --radius: 6px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 16px/1.5 var(--sans);
  color: var(--ink);
  background:
    repeating-linear-gradient(to bottom, transparent 0 31px, rgba(160, 145, 110, .09) 31px 32px),
    var(--paper);
  min-height: 100vh;
}

a { color: var(--green); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.top {
  border-bottom: 1px solid var(--rule-strong);
  background: var(--sheet);
  box-shadow: 0 1px 0 var(--rule), 0 3px 0 -1px var(--rule);
}
.top .wrap { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; padding-block: 14px; }
.brand { font-weight: 600; letter-spacing: -.01em; text-decoration: none; color: var(--ink); display: flex; gap: 10px; align-items: baseline; }
.brand b { font-family: var(--mono); font-weight: 500; font-size: 13px; color: var(--green); letter-spacing: .12em; text-transform: uppercase; }
nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
nav a { text-decoration: none; color: var(--muted); padding: 6px 12px; border-radius: var(--radius); }
nav a:hover { color: var(--ink); background: var(--paper); }
nav a.on { color: var(--ink); background: var(--green-soft); }
.who { display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: 14px; }
.who button { font: inherit; background: none; border: 0; color: var(--muted); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; padding: 0; }

.wrap { max-width: 1120px; margin: 0 auto; padding-inline: 20px; }
main.wrap { padding-block: 36px 64px; }

h1 { font-size: 30px; line-height: 1.2; letter-spacing: -.02em; margin: 0 0 6px; font-weight: 600; }
h2 { font-size: 19px; margin: 36px 0 12px; font-weight: 600; }
.lead { color: var(--muted); margin: 0 0 28px; max-width: 64ch; }

.sheet {
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: 0 1px 2px rgba(60, 50, 30, .06), 0 8px 24px -12px rgba(60, 50, 30, .12);
  padding: 24px;
}
.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.tool { display: block; text-decoration: none; color: inherit; position: relative; transition: transform .15s ease, box-shadow .15s ease; }
.tool:hover { transform: translateY(-2px); box-shadow: 0 2px 4px rgba(60, 50, 30, .08), 0 14px 30px -14px rgba(60, 50, 30, .25); color: inherit; }
.tool h3 { margin: 6px 0 8px; font-size: 20px; }
.tool p { margin: 0; color: var(--muted); }
.tool .kicker { font-family: var(--mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--green); }
.tool .go { position: absolute; right: 22px; top: 22px; font-family: var(--mono); color: var(--rule-strong); font-size: 22px; transition: color .15s, transform .15s; }
.tool:hover .go { color: var(--green); transform: translateX(3px); }

label.field { display: block; margin-bottom: 18px; }
label.field span { display: block; font-weight: 500; margin-bottom: 6px; }
label.field small { display: block; color: var(--muted); margin-top: 4px; font-size: 13px; }
input[type=text], input[type=password] {
  width: 100%; font: inherit; padding: 10px 12px; border: 1px solid var(--rule-strong); border-radius: var(--radius); background: #fff;
}
.btn {
  font: inherit; font-weight: 500; display: inline-flex; align-items: center; gap: 10px;
  background: var(--green); color: #fff; border: 0; border-radius: var(--radius); padding: 12px 22px; cursor: pointer; text-decoration: none;
}
.btn:hover { background: #164a37; color: #fff; }
.btn[disabled] { opacity: .75; cursor: progress; }
.btn.ghost { background: transparent; color: var(--green); border: 1px solid var(--green); }
.btn.ghost:hover { background: var(--green-soft); color: var(--green); }
.spin { width: 14px; height: 14px; border: 2px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; display: none; animation: spin .8s linear infinite; }
.busy .spin { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.drop {
  position: relative; display: block; border: 1.5px dashed var(--rule-strong); border-radius: var(--radius);
  background: repeating-linear-gradient(-45deg, transparent 0 10px, rgba(160,145,110,.05) 10px 20px), #fffefa;
  padding: 26px 20px; text-align: center; transition: border-color .15s, background-color .15s; margin-bottom: 18px;
}
.drop:hover, .drop.over { border-color: var(--green); background-color: var(--green-soft); }
.drop input[type=file] { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; }
.drop .title { font-weight: 500; display: block; }
.drop .hint { color: var(--muted); font-size: 14px; display: block; }
.drop .formats { font-family: var(--mono); font-size: 12px; color: var(--muted); display: block; margin-top: 4px; }
.drop .how { font-size: 13px; color: var(--green); display: block; margin-top: 10px; }
.drop.filled .how { display: none; }
.drop.filled { border-style: solid; border-color: var(--green); background-color: #f7fbf8; }
.optional { font-weight: 400; font-size: 12px; color: var(--muted); border: 1px solid var(--rule-strong); border-radius: 10px; padding: 1px 8px; margin-left: 6px; }
.drop .picked { font-family: var(--mono); font-size: 13px; color: var(--green); margin-top: 8px; min-height: 1em; word-break: break-word; }

.flash { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 20px; border: 1px solid; }
.flash.error { background: var(--brick-soft); border-color: #e3bcae; color: #6e2716; }
.flash.info { background: var(--green-soft); border-color: #bfd8c9; }

.totals { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); border: 1px solid var(--rule); border-radius: var(--radius); background: var(--sheet); overflow: hidden; margin-bottom: 22px; }
.totals div { padding: 16px 20px; border-right: 1px solid var(--rule); }
.totals div:last-child { border-right: 0; }
.totals dt { font-size: 13px; color: var(--muted); }
.totals dd { margin: 2px 0 0; font-family: var(--mono); font-size: 30px; font-weight: 500; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.totals .ok dd { color: var(--green); }
.totals .bad dd { color: var(--brick); }

.scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--sheet); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-weight: 500; color: var(--muted); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; padding: 10px 14px; border-bottom: 1px solid var(--rule-strong); background: #faf7ef; position: sticky; top: 0; white-space: nowrap; }
td { padding: 10px 14px; border-bottom: 1px solid var(--rule); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: #fbf8f0; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.num.left { text-align: left; }
.file { font-family: var(--mono); font-size: 13px; word-break: break-word; min-width: 180px; }
.why { color: var(--muted); font-size: 13px; min-width: 220px; }
.muted { color: var(--muted); }

.stamp {
  display: inline-block; font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase;
  border: 1.5px solid currentColor; border-radius: 3px; padding: 2px 7px; transform: rotate(-2deg); white-space: nowrap;
}
.stamp.ok { color: var(--green); background: var(--green-soft); }
.stamp.bad { color: var(--brick); background: var(--brick-soft); }
.stamp.run { color: var(--muted); }

.actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin: 0 0 26px; }
.meta { font-family: var(--mono); font-size: 13px; color: var(--muted); margin: 0 0 22px; }

.login { max-width: 400px; margin: 9vh auto 0; }
.login h1 { margin-bottom: 4px; }

.reveal > * { animation: rise .45s ease both; }
.reveal > *:nth-child(2) { animation-delay: .05s; }
.reveal > *:nth-child(3) { animation-delay: .10s; }
.reveal > *:nth-child(4) { animation-delay: .15s; }
.reveal > *:nth-child(5) { animation-delay: .20s; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }
@media (prefers-reduced-motion: reduce) { .reveal > * { animation: none; } .tool, .tool .go { transition: none; } }

@media (max-width: 640px) {
  main.wrap { padding-block: 24px 48px; }
  h1 { font-size: 24px; }
  .top .wrap { gap: 8px 16px; padding-block: 10px 6px; }
  .brand { order: 1; }
  .who { order: 2; margin-left: auto; }
  nav { order: 3; flex: 0 0 100%; flex-wrap: nowrap; overflow-x: auto; margin-inline: -12px; scrollbar-width: none; }
  nav a { white-space: nowrap; }
  .totals dd { font-size: 24px; }
  .sheet { padding: 18px; }
}
.spin.dark { display: inline-block; vertical-align: -2px; margin-right: 6px; border-color: rgba(29, 92, 69, .2); border-top-color: var(--green); }

/* Фильтры: история и строки результата */
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin: 0 0 14px; }
.chips a, .chips button {
  font: inherit; font-size: 14px; text-decoration: none; color: var(--muted); background: var(--sheet);
  border: 1px solid var(--rule); border-radius: 999px; padding: 5px 14px; cursor: pointer;
}
.chips a:hover, .chips button:hover { color: var(--ink); border-color: var(--rule-strong); }
.chips .on { color: var(--ink); background: var(--green-soft); border-color: #bfd8c9; }

.when { white-space: nowrap; }
.when a { font-variant-numeric: tabular-nums; }
.small { font-size: 13px; }
code { font-family: var(--mono); font-size: .92em; background: var(--paper); padding: 1px 5px; border-radius: 3px; }

/* Ошибка прогона: что случилось и что делать */
.problem { border-color: #e3bcae; background: #fffaf7; margin-bottom: 26px; }
.problem h2 { margin: 0 0 8px; color: var(--brick); }
.problem .reason { font-family: var(--mono); font-size: 14px; margin: 0 0 12px; word-break: break-word; }

details.inputs { margin-top: 30px; color: var(--muted); }
details.inputs summary { cursor: pointer; font-size: 14px; }
details.inputs ul { margin: 10px 0 0; padding-left: 20px; }
details.inputs li { margin: 2px 0; }

.empty { text-align: center; padding: 40px 24px; }
.empty h3 { margin: 0 0 6px; }

.error-page { max-width: 560px; margin: 8vh auto 0; text-align: center; }
.error-page .code { font-family: var(--mono); font-size: 64px; color: var(--rule-strong); margin: 0; letter-spacing: -.04em; }
.error-page .lead { margin-inline: auto; }