:root {
  --bg: #f4f5f2;
  --surface: #ffffff;
  --surface-2: #f0f2ee;
  --fg: #1b211e;
  --muted: #5f6b65;
  --line: #dde2dc;
  --accent: #1a6b4f;
  --accent-fg: #ffffff;
  --accent-soft: #e2f0e9;
  --ok: #17663f;
  --ok-soft: #e3f3e9;
  --warn: #8a5300;
  --warn-soft: #fbf0dc;
  --bad: #b4231b;
  --bad-soft: #fde8e6;
  --info: #3d5a80;
  --info-soft: #e7eef7;
  --mono: ui-monospace, "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  --radius: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121614;
    --surface: #1b201d;
    --surface-2: #232a26;
    --fg: #e6ebe7;
    --muted: #9aa69f;
    --line: #2e3631;
    --accent: #4fbf8e;
    --accent-fg: #0b1f16;
    --accent-soft: #1d3a2d;
    --ok: #6fd39c;
    --ok-soft: #173326;
    --warn: #f0c060;
    --warn-soft: #3a2e14;
    --bad: #ff8a80;
    --bad-soft: #3d1c1a;
    --info: #9cbbe6;
    --info-soft: #1d2a3b;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
}
a { color: var(--accent); }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 16px; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0; padding: 0; margin: -1px;
}

/* шапка */
.top { background: var(--surface); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 12px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.logo { flex: none; display: flex; }
.logo-bg { fill: var(--accent); }
.logo-tick { stroke: var(--accent-fg); stroke-width: 3.2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.brand-name { font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.brand-sub { color: var(--muted); font-size: 13px; line-height: 1.3; }
.top-link { flex: none; font-size: 14px; text-decoration: none; padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); }
.top-link:hover { color: var(--fg); }

main.wrap { padding-top: 20px; padding-bottom: 24px; }

/* форма */
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 6px;
  min-height: 170px; padding: 20px 12px; border: 2px dashed var(--line); border-radius: 12px; background: var(--surface-2);
  cursor: pointer; transition: border-color .15s, background .15s;
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop:focus-within { outline: 3px solid var(--accent); outline-offset: 2px; }
.drop.has-file { border-style: solid; border-color: var(--accent); }
.drop-icon .ic { stroke: var(--accent); stroke-width: 1.8; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.drop-title { font-weight: 600; overflow-wrap: anywhere; }
.drop-sub { color: var(--muted); font-size: 14px; overflow-wrap: anywhere; }

.actions { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.btn {
  flex: 1 1 200px; min-height: 48px; padding: 10px 16px; font: inherit; font-weight: 600; cursor: pointer;
  border-radius: 10px; border: 1px solid var(--line); background: var(--surface); color: var(--fg);
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn-primary:hover:not(:disabled) { filter: brightness(1.07); }
.fine { color: var(--muted); font-size: 13px; margin: 12px 0 0; }

.status { margin-top: 16px; padding: 12px 14px; border-radius: 10px; background: var(--info-soft); color: var(--info); display: flex; align-items: center; gap: 10px; }
.status.error { background: var(--bad-soft); color: var(--bad); }
.spinner { width: 18px; height: 18px; flex: none; border-radius: 50%; border: 2.5px solid currentColor; border-right-color: transparent; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 3s; } }

/* сводка */
#result { margin-top: 16px; }
.summary { border-radius: var(--radius); padding: 16px; margin-bottom: 16px; border: 1px solid var(--line); background: var(--surface); }
.summary.good { border-color: var(--ok); background: var(--ok-soft); }
.summary.bad { border-color: var(--bad); background: var(--bad-soft); }
.summary.neutral { background: var(--surface); }
.summary-title { font-size: 20px; font-weight: 700; line-height: 1.3; margin: 0 0 4px; }
.summary.good .summary-title { color: var(--ok); }
.summary.bad .summary-title { color: var(--bad); }
.summary-sub { color: var(--muted); font-size: 14px; margin: 0; }
.dl-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.dl-row .btn { text-decoration: none; display: inline-flex; align-items: center; justify-content: center; text-align: center; overflow-wrap: anywhere; }
.notes { margin: 0 0 16px; padding: 12px 14px; border-radius: 10px; background: var(--info-soft); color: var(--info); font-size: 14px; }
.notes ul { margin: 0; padding-left: 20px; }

/* карточка файла */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.card-head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 8px 12px; }
.min0 { min-width: 0; }
.fname { font-weight: 700; overflow-wrap: anywhere; min-width: 0; }
.fmt { color: var(--muted); font-size: 14px; margin-top: 2px; overflow-wrap: anywhere; }
.verdict { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 999px; font-weight: 700; font-size: 14px; white-space: normal; }
.v-ok { background: var(--ok-soft); color: var(--ok); }
.v-warnings { background: var(--ok-soft); color: var(--ok); }
.v-blocked, .v-error { background: var(--bad-soft); color: var(--bad); }
.v-skipped { background: var(--surface-2); color: var(--muted); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip { max-width: 100%; overflow-wrap: anywhere; font-size: 13px; padding: 2px 10px; border-radius: 999px; background: var(--surface-2); color: var(--muted); }
.chip.c-critical { background: var(--bad-soft); color: var(--bad); }
.chip.c-warning { background: var(--warn-soft); color: var(--warn); }
.chip.c-info { background: var(--info-soft); color: var(--info); }
.chip.c-fixed { background: var(--ok-soft); color: var(--ok); }

.sig {
  overflow-wrap: anywhere; margin-top: 14px; padding: 14px; border-radius: 12px; border: 2px solid var(--bad); background: var(--bad-soft); color: var(--bad);
}
.sig-title { font-weight: 800; font-size: 17px; margin-bottom: 4px; }
.sig p { margin: 4px 0 0; }
.sig ul { margin: 6px 0 0; padding-left: 20px; font-family: var(--mono); font-size: 13px; overflow-wrap: anywhere; }

.block { margin-top: 16px; }
.repair { margin-top: 14px; padding: 2px 14px 14px; border-radius: 12px; border: 2px solid var(--warn); background: var(--warn-soft); }
.block > h3 { font-size: 15px; margin: 0 0 8px; display: flex; align-items: center; gap: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; flex: none; background: var(--muted); }
.dot.critical { background: var(--bad); }
.dot.warning { background: var(--warn); }
.dot.info { background: var(--info); }
.dot.fixed { background: var(--ok); }

.issues { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.issue { padding: 10px 12px; border-radius: 10px; background: var(--surface-2); border-left: 4px solid var(--muted); overflow-wrap: anywhere; }
.issue.critical { border-left-color: var(--bad); }
.issue.warning { border-left-color: var(--warn); }
.issue.info { border-left-color: var(--info); }
.issue.fixed { border-left-color: var(--ok); }
.issue-msg { margin: 0; }
.tag { display: inline-block; font-size: 12px; font-weight: 600; padding: 0 8px; border-radius: 999px; margin-left: 6px; vertical-align: 1px; background: var(--ok-soft); color: var(--ok); }
.loc { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-top: 4px; }
.hint { font-size: 14px; margin-top: 4px; color: var(--fg); }
.hint::before { content: "→ "; color: var(--muted); }
.code { font-family: var(--mono); font-size: 11px; color: var(--muted); }

.pres { padding: 10px 12px; border-radius: 10px; font-weight: 600; }
.pres.good { background: var(--ok-soft); color: var(--ok); }
.pres.bad { background: var(--bad-soft); color: var(--bad); }
.pres ul { font-weight: 400; margin: 6px 0 0; padding-left: 20px; font-size: 14px; }

.ask { padding: 12px 14px; border-radius: 10px; background: var(--warn-soft); }
.ask ol { margin: 0; padding-left: 22px; }
.ask li + li { margin-top: 4px; }
.ask-actions { margin-top: 10px; }
.btn-small { min-height: 36px; padding: 6px 12px; font-size: 14px; flex: none; }

details.more { margin-top: 14px; }
details.more > summary { cursor: pointer; color: var(--muted); font-size: 14px; }
details.more[open] > summary { margin-bottom: 8px; }
.plain { margin: 8px 0 0; color: var(--muted); font-size: 14px; }

.foot { color: var(--muted); font-size: 13px; padding-top: 8px; padding-bottom: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; }
.foot-links { display: inline-flex; align-items: center; gap: 16px; }
.foot a { color: var(--muted); }
.logout { margin: 0; display: inline; }
.linkish { font: inherit; color: var(--muted); background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline; }
.linkish:hover, .foot a:hover { color: var(--fg); }

/* вход */
.login { max-width: 420px; margin: 24px auto 0; }
.login-title { font-size: 20px; margin: 0 0 12px; }
.login .status { margin: 0 0 12px; }
.field { display: block; margin-top: 12px; }
.field > span { display: block; font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.field input {
  width: 100%; min-height: 44px; padding: 8px 12px; font: inherit; color: var(--fg);
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
}
.field input:focus { outline: 3px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

/* встраивание во фрейм на странице сайта: без своей шапки, фона и внешних отступов */
html.embedded {
  --bg: transparent;
  --surface: #ffffff;
  --surface-2: #f0f2ee;
  --fg: #1b211e;
  --muted: #5f6b65;
  --line: #dde2dc;
  --accent: #1a6b4f;
  --accent-fg: #ffffff;
  --accent-soft: #e2f0e9;
  --ok: #17663f;
  --ok-soft: #e3f3e9;
  --warn: #8a5300;
  --warn-soft: #fbf0dc;
  --bad: #b4231b;
  --bad-soft: #fde8e6;
  --info: #3d5a80;
  --info-soft: #e7eef7;
  color-scheme: light;
  background: transparent;
}
body.embedded { background: transparent; }
body.embedded .top { display: none; }
body.embedded .wrap { max-width: none; padding-left: 0; padding-right: 0; }
body.embedded main.wrap { padding-top: 0; padding-bottom: 12px; }
body.embedded .foot { padding-bottom: 0; }
body.embedded .login { margin-top: 0; }

@media (max-width: 520px) {
  .brand-sub { display: none; }
  .summary-title { font-size: 18px; }
  .btn { flex-basis: 100%; }
}