/* ЧВК «Твердыня» — Stronghold Contract Group
   Design: tactical dossier — flat, bordered, paper-and-stencil.
   One accent (signal amber) spent only on the primary CTA and the status tag. */

:root {
  --ink: #15170f;
  --panel: #1b1e13;
  --panel-alt: #191c12;
  --paper: #ece7d6;
  --khaki: #a79b72;
  --olive: #4b5320;
  --signal: #c97a2b;
  --line: rgba(236, 231, 214, 0.14);
  --rail-w: 230px;
  --content-max: 700px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: "PT Sans", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: "Oswald", "PT Sans", sans-serif;
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
  color: var(--paper);
}

p { margin: 0 0 1em; }
a { color: inherit; }

a:focus-visible, label:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }

/* ---------- Rail navigation ---------- */

.rail {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--rail-w);
  background: var(--panel);
  border-right: 1px solid var(--line);
  padding: 2rem 1.6rem;
  display: flex;
  flex-direction: column;
  z-index: 30;
}

.rail__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.rail__brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  font-family: "Oswald", sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--paper);
}

.rail__crest { width: 30px; height: 30px; color: var(--khaki); flex-shrink: 0; }

.rail__toggle { display: none; flex-direction: column; gap: 4px; cursor: pointer; padding: 0.4rem; }
.rail__toggle span { width: 20px; height: 2px; background: var(--paper); display: block; }

.rail__nav {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.rail__nav a {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--khaki);
  font-family: "Oswald", sans-serif;
  font-weight: 500;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
  border-left: 2px solid transparent;
  padding-left: 0.7rem;
  margin-left: -0.9rem;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.rail__nav a span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: var(--olive);
  filter: brightness(1.8);
}

.rail__nav a:hover,
.rail__nav a:focus-visible {
  color: var(--paper);
  border-left-color: var(--signal);
}

/* ---------- Main layout ---------- */

main { margin-left: var(--rail-w); }

.hero, .section {
  padding: 6rem 4vw;
  border-bottom: 1px solid var(--line);
}

.hero > *, .section > * { max-width: var(--content-max); }

.section--alt { background: var(--panel-alt); }

.section__index {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  color: var(--khaki);
  margin: 0 0 0.6rem;
  opacity: 0.75;
}

.section h2 { font-size: clamp(1.7rem, 2.6vw, 2.3rem); margin-bottom: 1.8rem; }
.section__lead { color: var(--khaki); max-width: 560px; }

/* ---------- Hero ---------- */

.hero {
  min-height: 88vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--line);
}

.hero__kicker {
  font-family: "Oswald", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  color: var(--khaki);
  margin-bottom: 0.9rem;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  letter-spacing: -0.01em;
  margin-bottom: 1.4rem;
}

.hero__lead { color: var(--paper); max-width: 560px; font-size: 1.05rem; }

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.6rem 0 2.2rem;
}

.tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--khaki);
  border: 1px solid var(--khaki);
  border-radius: 2px;
  padding: 0.35em 0.8em;
}

.tag--status { color: var(--signal); border-color: var(--signal); }

.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.btn {
  display: inline-flex;
  align-items: center;
  font-family: "Oswald", sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 0.85em 1.7em;
  border-radius: 2px;
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn--primary { background: var(--signal); color: var(--ink); border-color: var(--signal); }
.btn--primary:hover { background: #e08b35; }

.btn--ghost { color: var(--paper); border-color: var(--khaki); }
.btn--ghost:hover { border-color: var(--paper); }

/* ---------- Content blocks ---------- */

.block { margin-bottom: 3.2rem; }
.block:last-child { margin-bottom: 0; }
.block h3 { font-size: 1.25rem; margin-bottom: 0.9rem; }
.block p { color: var(--paper); }

.callsign {
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  color: var(--signal);
  letter-spacing: 0.02em;
}

.principles { list-style: none; margin: 1.6rem 0 0; padding: 0; }

.principles li {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 1.4rem;
  padding: 1.1rem 0 1.1rem 1.1rem;
  border-left: 2px solid var(--olive);
  border-bottom: 1px solid var(--line);
}

.principles li:last-child { border-bottom: none; }

.principles__title { font-family: "Oswald", sans-serif; font-weight: 600; color: var(--paper); }
.principles__desc { color: var(--khaki); }

.tri {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 1.8rem;
}

.tri > div { border-top: 2px solid var(--olive); padding-top: 1rem; }
.tri h4 { font-size: 1rem; margin-bottom: 0.5rem; }
.tri p { color: var(--khaki); margin: 0; font-size: 0.96rem; }

/* ---------- Roster ---------- */

.roster { list-style: none; margin: 1.8rem 0; padding: 0; max-width: var(--content-max); }

.roster li {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.4rem;
  padding: 1.1rem 0 1.1rem 1.1rem;
  border-left: 2px solid var(--khaki);
  border-bottom: 1px solid var(--line);
}

.roster li:last-child { border-bottom: none; }

.roster__role { font-family: "Oswald", sans-serif; font-weight: 600; }
.roster__desc { color: var(--khaki); }

.note { color: var(--khaki); font-size: 0.95rem; margin: 1.6rem 0 2rem; }

/* ---------- Contacts ---------- */

.contacts { display: flex; flex-wrap: wrap; gap: 1.4rem; margin-top: 1.8rem; }

.contact-card {
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 1.3rem 1.6rem;
  min-width: 230px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact-card__label { color: var(--khaki); font-size: 0.9rem; }
.contact-card a { text-decoration: none; font-family: "Oswald", sans-serif; font-size: 1.05rem; }
.contact-card a:hover { color: var(--signal); }

/* ---------- Footer ---------- */

.footer {
  margin-left: var(--rail-w);
  padding: 2.6rem 4vw;
  color: var(--khaki);
  font-size: 0.9rem;
  text-align: left;
}
.footer p { margin: 0; }

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  :root { --rail-w: 0px; }

  .rail {
    position: sticky;
    top: 0;
    width: 100%;
    height: auto;
    flex-direction: column;
    padding: 1rem 1.25rem;
  }

  .rail__toggle { display: flex; }

  .rail__nav {
    display: none;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
  }

  .nav-toggle:checked ~ .rail .rail__nav { display: flex; }

  main, .footer { margin-left: 0; }

  .hero, .section { padding: 3.2rem 6vw; min-height: 0; }

  .principles li, .roster li {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .tri { grid-template-columns: 1fr; gap: 1.6rem; }
}