/* Flight Line Art — shared stylesheet. No external fonts, no network calls. */

:root {
  --color-paper: #eef1f6   /* цвет бумаги из осей */
  --color-ink: #161d2c     /* цвет чернил из осей */
  --color-accent: #2842d6  /* акцент из осей */
  --font-head: Baskerville,Libre Baskerville,FreeSe   /* семейство display из осей */
  --font-body: IBM Plex Sans,DejaVu Sans,system-ui,  /* семейство текста из осей */

  --ink-10: rgba(233, 230, 222, 0.1);
  --ink-20: rgba(233, 230, 222, 0.2);
  --ink-40: rgba(233, 230, 222, 0.4);
  --ink-70: rgba(233, 230, 222, 0.7);
  --accent-15: rgba(226, 178, 60, 0.15);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--color-paper);
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: Baskerville,Libre Baskerville,FreeSe;
  font-size: 17px;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent);
}

.wrap {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

h1, h2, h3, h4 {
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  color: var(--color-ink);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.15;
  text-wrap: balance;
}

h1 { font-size: clamp(1.9rem, 5vw, 2.9rem); margin: 0 0 0.5rem; }
h2 { font-size: clamp(1.35rem, 3.2vw, 1.7rem); margin: 2.5rem 0 1rem; padding-top: 1.5rem; border-top: 1px solid var(--ink-20); }
h2:first-child { border-top: none; padding-top: 0; margin-top: 0; }
h3 { font-size: 1.05rem; margin: 0 0 0.5rem; letter-spacing: 0.02em; }

p { margin: 0 0 1rem; text-wrap: pretty; }

.lede {
  font-size: 1.15rem;
  color: var(--ink-70);
  max-width: 62ch;
}

.eyebrow {
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--color-accent);
  margin: 0 0 0.75rem;
}

/* ---------- header panel ---------- */

header.site-header {
  background: var(--color-paper);
  border-bottom: 2px solid var(--color-accent);
  padding: 1.75rem 0 1.25rem;
}

.brand-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand-name {
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  color: var(--color-ink);
}

.brand-name span {
  color: var(--color-accent);
}

.brand-tagline {
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  font-style: italic;
  color: var(--ink-70);
  font-size: 0.95rem;
  margin: 0;
}

nav.site-nav {
  margin-top: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  border-top: 1px solid var(--ink-20);
  padding-top: 1rem;
}

nav.site-nav a {
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ink-70);
  padding-bottom: 0.15rem;
  border-bottom: 2px solid transparent;
}

nav.site-nav a:hover,
nav.site-nav a[aria-current="page"] {
  color: var(--color-ink);
  border-bottom-color: var(--color-accent);
}

/* ---------- main sections ---------- */

main {
  padding: 2.5rem 0 1rem;
}

section {
  margin-bottom: 2.5rem;
}

/* ---------- cards grid 3xN ---------- */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--ink-10);
  border: 1px solid var(--ink-20);
  border-top: 3px solid var(--color-accent);
  padding: 1.4rem 1.3rem 1.5rem;
}

.card .num {
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  color: var(--color-accent);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.6rem;
}

.card p { margin-bottom: 0.5rem; color: var(--ink-70); }

.card a.card-link {
  display: inline-block;
  margin-top: 0.4rem;
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent);
}

/* ---------- tables ---------- */

.table-scroll {
  overflow-x: auto;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.95rem;
  min-width: 560px;
}

table.data-table caption {
  text-align: left;
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
  color: var(--color-accent);
  margin-bottom: 0.6rem;
}

table.data-table th,
table.data-table td {
  border: 1px solid var(--ink-20);
  padding: 0.7rem 0.9rem;
  text-align: left;
  vertical-align: top;
}

table.data-table thead th {
  background: var(--ink-10);
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.78rem;
  color: var(--color-ink);
}

table.data-table tbody tr:nth-child(even) {
  background: var(--ink-10);
}

table.data-table td strong {
  color: var(--color-accent);
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  font-weight: 700;
  font-size: 0.95rem;
}

/* ---------- numbered procedure ---------- */

ol.procedure {
  list-style: none;
  counter-reset: step;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

ol.procedure li {
  counter-increment: step;
  position: relative;
  background: var(--ink-10);
  border: 1px solid var(--ink-20);
  padding: 1.1rem 1.2rem 1.1rem 4rem;
}

ol.procedure li::before {
  content: counter(step);
  position: absolute;
  left: 1.1rem;
  top: 1.1rem;
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  font-size: 1.5rem;
  color: var(--color-accent);
  line-height: 1;
}

ol.procedure .step-time {
  display: inline-block;
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.75rem;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 0.15rem 0.5rem;
  margin: 0.2rem 0 0.6rem;
}

ol.procedure .step-fail {
  color: var(--ink-70);
  font-size: 0.93rem;
  margin: 0.5rem 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--ink-20);
}

ol.procedure .step-fail b {
  color: var(--color-ink);
  font-style: normal;
}

/* ---------- FAQ ---------- */

.faq-item {
  border-bottom: 1px solid var(--ink-20);
  padding: 1.1rem 0;
}

.faq-item:first-child { border-top: 1px solid var(--ink-20); }

.faq-item h3 {
  text-transform: none;
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-ink);
}

.faq-item p {
  color: var(--ink-70);
  margin-bottom: 0;
}

/* ---------- figures ---------- */

figure.diagram {
  margin: 1.5rem 0;
  background: var(--ink-10);
  border: 1px solid var(--ink-20);
  padding: 1.2rem;
}

figure.diagram svg {
  display: block;
  width: 100%;
  height: auto;
}

figure.diagram figcaption {
  margin-top: 0.9rem;
  font-size: 0.88rem;
  color: var(--ink-70);
  border-top: 1px dashed var(--ink-20);
  padding-top: 0.7rem;
}

figure.diagram figcaption strong {
  color: var(--color-accent);
  font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.75rem;
  display: block;
  margin-bottom: 0.3rem;
}

.fig-ink { fill: var(--color-ink); stroke: var(--color-ink); }
.fig-ink-fill { fill: var(--color-ink); stroke: none; }
.fig-accent { fill: var(--color-accent); stroke: var(--color-accent); }
.fig-accent-fill { fill: var(--color-accent); stroke: none; }
.fig-dim { stroke: var(--ink-40); fill: none; }
.fig-dashed { stroke: var(--ink-40); fill: none; stroke-dasharray: 4 4; }
text.fig-label { fill: var(--ink-70); font-family: IBM Plex Sans,DejaVu Sans,system-ui,; }
text.fig-label-head { fill: var(--color-ink); font-family: IBM Plex Sans,DejaVu Sans,system-ui,; text-transform: uppercase; letter-spacing: 0.04em; }

/* ---------- footer ---------- */

footer.site-footer {
  border-top: 1px solid var(--ink-20);
  margin-top: 2.5rem;
  padding: 1.5rem 0 2.5rem;
}

footer.site-footer p {
  color: var(--ink-40);
  font-size: 0.85rem;
  margin: 0;
}

/* ---------- responsive table -> cards ---------- */

@media (max-width: 640px) {
  table.data-table.stack,
  table.data-table.stack thead,
  table.data-table.stack tbody,
  table.data-table.stack th,
  table.data-table.stack td,
  table.data-table.stack tr {
    display: block;
    min-width: 0;
  }

  table.data-table.stack {
    min-width: 0;
  }

  table.data-table.stack thead {
    position: absolute;
    left: -9999px;
    top: -9999px;
  }

  table.data-table.stack tr {
    border: 1px solid var(--ink-20);
    margin-bottom: 0.9rem;
    padding: 0.4rem 0;
  }

  table.data-table.stack td {
    border: none;
    border-bottom: 1px dashed var(--ink-20);
    padding-left: 42%;
    position: relative;
    min-height: 2.4rem;
  }

  table.data-table.stack tr td:last-child {
    border-bottom: none;
  }

  table.data-table.stack td::before {
    content: attr(data-label);
    position: absolute;
    left: 0.8rem;
    top: 0.7rem;
    width: 38%;
    font-family: IBM Plex Sans,DejaVu Sans,system-ui,;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-size: 0.68rem;
    color: var(--color-accent);
  }
}

@media (max-width: 720px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  ol.procedure li { padding-left: 3.4rem; }
}