/* Ризонерс — «обсерватория знаний».
   Направление выбрано жребием (DIRECTION.md), система зафиксирована в DESIGN.md.
   Мир: ночное небо и лист атласа. Знак — созвездие, поэтому чёрный существует
   в проекте не как мода, а как родная среда логотипа. */

@font-face {
  font-family: "Onest";
  src: url("/assets/fonts/onest-var.woff2") format("woff2-variations");
  font-weight: 100 900; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Unbounded";
  src: url("/assets/fonts/unbounded-var.woff2") format("woff2-variations");
  font-weight: 200 900; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Geologica";
  src: url("/assets/fonts/geologica-var.woff2") format("woff2-variations");
  font-weight: 100 900; font-style: normal; font-display: swap;
}

:root {
  /* лист атласа */
  --paper: #E9EBEE;
  --paper-2: #F4F5F7;
  --tint: #DFE3E8;
  --ink: #101319;
  --ink-2: #545C68;
  --line: #C6CBD2;
  --line-2: #AEB5BF;

  /* ночь */
  --sky: #070A11;
  --sky-2: #0D1220;
  --sky-ink: #EEF0F4;
  --sky-ink-2: #8B94A6;
  --sky-line: #1C2434;

  /* единственный акцент, снят с логотипа */
  --flare: #EF6238;
  --flare-ink: #B04216;
  --flare-sky: #FF7A45;

  --shell: 74rem;
  --narrow: 40rem;

  --s1: 0.4rem; --s2: 0.75rem; --s3: 1.25rem; --s4: 2rem;
  --s5: 3.5rem; --s6: 5.5rem; --s7: 8rem;

  --text: "Onest", "Segoe UI", system-ui, -apple-system, sans-serif;
  --display: "Unbounded", "Onest", "Segoe UI", system-ui, sans-serif;
  --meta: "Geologica", "Onest", system-ui, sans-serif;
  --mono: "Cascadia Mono", "Consolas", ui-monospace, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0E121A;
    --paper-2: #141A24;
    --tint: #111722;
    --ink: #E8EBF0;
    --ink-2: #99A2B2;
    --line: #212936;
    --line-2: #333D4D;
    --flare-ink: #FF8354;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--text);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

.shell { width: 100%; max-width: var(--shell); margin: 0 auto; padding: 0 1.5rem; }
.shell--narrow { max-width: calc(var(--narrow) + 3rem); }

a { color: var(--flare-ink); text-underline-offset: 0.2em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--flare); outline-offset: 3px; }

.skip {
  position: absolute; left: 0; top: 0; z-index: 20; transform: translateY(-200%);
  background: var(--flare); color: #fff; padding: 0.75rem 1.1rem; font-weight: 600;
}
.skip:focus { transform: translateY(0); }

/* ------------------------------------------------------------------ верх ---- */
/* Шапка всегда ночная: знак существует на чёрном и не перерисовывается. */
.topbar { background: var(--sky); color: var(--sky-ink); }
.topbar__in {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s3); padding: 0.8rem 1.5rem; flex-wrap: wrap;
}
.lockup { display: flex; align-items: center; gap: 0.8rem; text-decoration: none; color: inherit; min-height: 48px; }
.lockup img { width: 44px; height: 44px; display: block; mix-blend-mode: screen; }
.lockup b {
  display: block; font-family: var(--display); font-weight: 600;
  font-size: 1.02rem; letter-spacing: -0.01em; line-height: 1.15;
}
.lockup i { display: block; font-style: normal; font-size: 0.85rem; color: var(--sky-ink-2); }
.lockup:hover b { color: var(--flare-sky); }

.nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.nav a {
  color: var(--sky-ink-2); text-decoration: none; font-size: 0.95rem;
  display: inline-flex; align-items: center; min-height: 44px;
}
.nav a:hover { color: var(--sky-ink); }
.nav a[aria-current="page"] { color: var(--sky-ink); box-shadow: inset 0 -2px 0 var(--flare); }

/* ------------------------------------------------------------------ герой ---- */
.sky { background: var(--sky); color: var(--sky-ink); position: relative; overflow: hidden; }
.hero { padding: var(--s7) 0 var(--s6); }
/* карта уходит в темноту к левому нижнему углу, чтобы не спорить с текстом */
.hero__canvas {
  position: absolute; inset: 0; width: 100%; height: 100%; display: block;
  -webkit-mask-image: radial-gradient(120% 100% at 82% 22%, #000 12%, rgba(0,0,0,0.35) 55%, transparent 82%);
  mask-image: radial-gradient(120% 100% at 82% 22%, #000 12%, rgba(0,0,0,0.35) 55%, transparent 82%);
}
.hero__in { position: relative; }

.eyebrow {
  font-family: var(--meta); font-size: 0.88rem; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--flare-sky); margin: 0 0 var(--s3); font-weight: 500;
}
.eyebrow--ink { color: var(--flare-ink); }

h1 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(2.1rem, 1.1rem + 4vw, 4rem);
  line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 var(--s3);
  text-wrap: balance; max-width: 22ch;
}
.hero h1 { max-width: 24ch; }
.hero__lead {
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem);
  color: var(--sky-ink-2); max-width: 52ch; margin: 0 0 var(--s4); line-height: 1.55;
}

.hero__cta { display: flex; gap: var(--s2); flex-wrap: wrap; margin-bottom: var(--s6); }
.btn {
  font: inherit; font-size: 0.98rem; font-weight: 600; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; min-height: 50px;
  padding: 0.75rem 1.5rem; text-decoration: none; border-radius: 2px;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.btn--solid { background: var(--flare); color: #150803; border: 1px solid var(--flare); }
.btn--solid:hover { background: var(--flare-sky); border-color: var(--flare-sky); color: #150803; }
.btn--ghost { background: transparent; color: var(--sky-ink); border: 1px solid var(--sky-line); }
.btn--ghost:hover { border-color: var(--sky-ink-2); color: var(--sky-ink); }

.counters {
  display: flex; flex-wrap: wrap; gap: var(--s4) var(--s6); margin: 0;
  padding-top: var(--s4); border-top: 1px solid var(--sky-line);
}
.counters div { display: flex; flex-direction: column-reverse; gap: 0.15rem; }
.counters dt { font-family: var(--meta); font-size: 0.88rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--sky-ink-2); }
.counters dd {
  margin: 0; font-family: var(--display); font-weight: 500; font-size: 2.1rem;
  line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------------ зоны ----- */
.zone { padding: var(--s6) 0; }
.zone--tint { background: var(--tint); }
.zone h2, .pagehead h1 { margin-top: 0; }
h2 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(1.45rem, 1.15rem + 1.3vw, 2.15rem);
  line-height: 1.18; letter-spacing: -0.025em; margin: 0 0 var(--s2);
  text-wrap: balance; max-width: 30ch;
}
.zone__lead { color: var(--ink-2); max-width: 58ch; margin: 0 0 var(--s5); font-size: 1.05rem; }
.more { margin: var(--s4) 0 0; }
.more a { font-weight: 600; display: inline-flex; align-items: center; min-height: 44px; }

/* ---------------------------------------------------------------- ступени ---- */
.stages { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.stage {
  display: grid; grid-template-columns: 4rem minmax(12rem, 18rem) 1fr; gap: var(--s4);
  padding: var(--s4) 0; border-top: 1px solid var(--line); position: relative;
  align-items: start;
}
.stage h3 { grid-column: 2; }
.stage__body { grid-column: 3; }
.stage:last-child { border-bottom: 1px solid var(--line); }
.stage__num {
  font-family: var(--display); font-size: 1.6rem; font-weight: 300;
  color: var(--flare-ink); font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
}
.stage h3 { font-family: var(--display); font-weight: 500; font-size: 1.25rem; letter-spacing: -0.02em; margin: 0 0 var(--s2); }
.stage__goal { margin: 0 0 var(--s1); max-width: 56ch; }
.stage__res { margin: 0 0 var(--s2); color: var(--ink-2); max-width: 56ch; }
.stage__links { margin: 0; display: flex; flex-wrap: wrap; gap: 0.2rem 1.2rem; font-size: 0.95rem; }
.stage__links a { font-weight: 600; display: inline-flex; align-items: center; min-height: 44px; }
.stage:hover .stage__num { color: var(--flare); }

/* ---------------------------------------------------------------- карточки --- */
.cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px; background: var(--line); grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); }
.card { background: var(--paper); }
.zone--tint .card { background: var(--tint); }
.card__link {
  display: flex; flex-direction: column; gap: 0.45rem; height: 100%;
  padding: var(--s4) var(--s3); text-decoration: none; color: inherit;
  background: transparent; transition: background-color 160ms ease;
}
.card__link:hover { background: var(--paper-2); }
.card__num {
  font-family: var(--meta); font-size: 0.88rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--flare-ink); font-variant-numeric: tabular-nums;
}
.card__ttl { font-family: var(--display); font-weight: 500; font-size: 1.12rem; letter-spacing: -0.02em; line-height: 1.25; }
.card__link:hover .card__ttl { color: var(--flare-ink); }
.card__sub { color: var(--ink-2); font-size: 0.95rem; }
.card__meta { margin-top: auto; padding-top: var(--s2); font-family: var(--meta); font-size: 0.88rem; color: var(--ink-2); }

/* ------------------------------------------------------------------ записи --- */
.posts { list-style: none; margin: 0; padding: 0; }
.posts li { border-top: 1px solid var(--line); }
.posts li:last-child { border-bottom: 1px solid var(--line); }
.posts a {
  display: grid; gap: 0.5rem; padding: var(--s4) 0; text-decoration: none; color: inherit;
}
.post__kicker {
  font-family: var(--meta); font-size: 0.88rem; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--flare-ink);
}
.post__ttl {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(1.2rem, 1rem + 0.9vw, 1.6rem); line-height: 1.22;
  letter-spacing: -0.025em; max-width: 26ch;
}
.posts a:hover .post__ttl { color: var(--flare-ink); }
.post__lead { color: var(--ink-2); max-width: 62ch; }
.post__meta { font-family: var(--meta); font-size: 0.92rem; color: var(--ink-2); }

/* --------------------------------------------------------------- инструменты - */
.tools { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.tools li { flex: 1 1 18rem; background: var(--tint); }
.tools a {
  display: flex; flex-direction: column; gap: 0.3rem; padding: var(--s3);
  text-decoration: none; color: inherit; height: 100%; transition: background-color 160ms ease;
}
.tools a:hover { background: var(--paper-2); }
.tool__type { font-family: var(--meta); font-size: 0.88rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--flare-ink); }
.tool__ttl { font-weight: 600; }

/* ------------------------------------------------------------- шапка раздела - */
.pagehead { padding: var(--s6) 0 var(--s4); border-bottom: 1px solid var(--line); }
.pagehead__lead { font-size: 1.1rem; color: var(--ink-2); max-width: 58ch; margin: var(--s3) 0 0; }

/* ------------------------------------------------------------------ документ - */
.doc { padding: var(--s5) 0 var(--s7); }
.crumbs { font-size: 0.9rem; color: var(--ink-2); margin-bottom: var(--s4); display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.crumbs a { color: var(--ink-2); display: inline-flex; align-items: center; min-height: 45px; text-decoration: none; }
.crumbs a:hover { color: var(--flare-ink); text-decoration: underline; }

.doc__kicker { font-family: var(--meta); font-size: 0.92rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--flare-ink); margin: 0 0 var(--s2); }
.doc__answer { font-size: 1.18rem; line-height: 1.55; margin: 0 0 var(--s3); max-width: 60ch; }
.doc__meta { font-family: var(--meta); font-size: 0.94rem; color: var(--ink-2); }

.doc h2 {
  font-size: clamp(1.25rem, 1.1rem + 0.7vw, 1.55rem); font-weight: 500;
  margin: var(--s5) 0 var(--s2); padding-top: var(--s3);
  border-top: 1px solid var(--line); max-width: 30ch;
}
.doc p { max-width: 62ch; margin: 0 0 var(--s3); }

.marks { list-style: none; padding: 0; margin: 0 0 var(--s3); }
.marks li { position: relative; padding-left: 1.5rem; margin-bottom: 0.55rem; max-width: 62ch; }
.marks li::before {
  content: ""; position: absolute; left: 0; top: 0.62em;
  width: 6px; height: 6px; background: var(--flare); border-radius: 50%;
}

.steps { list-style: none; padding: 0; margin: 0 0 var(--s3); }
.steps li {
  display: grid; grid-template-columns: 2.2rem 1fr; gap: var(--s2);
  padding: 0.6rem 0; border-bottom: 1px solid var(--line); max-width: 62ch;
}
.stepn {
  font-family: var(--meta); font-variant-numeric: tabular-nums;
  color: var(--flare-ink); font-weight: 600; font-size: 0.95rem;
}

.note {
  border-left: 2px solid var(--flare); background: var(--paper-2);
  padding: var(--s2) var(--s3); margin: 0 0 var(--s3); max-width: 62ch;
}
.note p { margin: 0; color: var(--ink-2); }

.tablewrap { overflow-x: auto; margin: 0 0 var(--s4); }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; min-width: 26rem; }
th, td { text-align: left; vertical-align: top; padding: 0.65rem 1.2rem 0.65rem 0; border-bottom: 1px solid var(--line); }
thead th { font-family: var(--meta); font-size: 0.92rem; font-weight: 600; color: var(--ink-2); border-bottom: 1px solid var(--line-2); }
tbody th { font-weight: 600; min-width: 9rem; }
td:last-child, th:last-child { padding-right: 0; }

.takeaways { background: var(--paper-2); border: 1px solid var(--line); padding: var(--s3) var(--s4); margin: var(--s5) 0 0; }
.takeaways h2 { margin: 0 0 var(--s2); padding: 0; border: 0; font-size: 1.05rem; font-family: var(--meta); font-weight: 600; letter-spacing: 0.02em; }
.takeaways ul { list-style: none; padding: 0; margin: 0; }
.takeaways li { position: relative; padding-left: 1.5rem; margin-bottom: 0.5rem; }
.takeaways li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 6px; height: 6px; background: var(--flare); border-radius: 50%; }

.qa { border-bottom: 1px solid var(--line); }
.qa summary {
  cursor: pointer; padding: 0.9rem 0; font-weight: 600; font-size: 1rem;
  list-style: none; display: flex; justify-content: space-between; gap: var(--s3); align-items: baseline;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "+"; color: var(--flare-ink); font-family: var(--meta); }
.qa[open] summary::after { content: "−"; }
.qa summary:hover { color: var(--flare-ink); }
.qa p { margin: 0 0 var(--s3); color: var(--ink-2); max-width: 60ch; }

.pager { display: grid; gap: var(--s2); grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); margin-top: var(--s6); }
.pager a {
  display: flex; flex-direction: column; gap: 0.2rem; padding: var(--s3);
  border: 1px solid var(--line); text-decoration: none; color: inherit;
  transition: border-color 160ms ease, background-color 160ms ease;
}
.pager a:hover { border-color: var(--flare); background: var(--paper-2); }
.pager span { font-family: var(--meta); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-2); }
.pager b { font-family: var(--display); font-weight: 500; font-size: 1.02rem; letter-spacing: -0.02em; line-height: 1.3; }
.pager__next { text-align: right; }

.take { background: var(--paper-2); border: 1px solid var(--line); padding: var(--s3); margin: 0 0 var(--s4); }
.take__head { display: flex; justify-content: space-between; align-items: center; gap: var(--s3); flex-wrap: wrap; }
.take__label { font-family: var(--meta); font-size: 0.94rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-2); margin: 0 0 var(--s2); }
.take__head .take__label { margin: 0; }
.take .btn { background: var(--flare-ink); border-color: var(--flare-ink); color: #FFF4EF; }
.take .btn:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.take .btn[data-done="1"] { background: transparent; color: var(--flare-ink); }

.prompt {
  font-family: var(--mono); font-size: 0.88rem; line-height: 1.55;
  white-space: pre-wrap; word-break: break-word; background: var(--paper);
  border: 1px solid var(--line); padding: var(--s3); margin: var(--s2) 0 0;
  max-height: 34rem; overflow-y: auto;
}

.related { margin-top: var(--s5); }
.back { margin-top: var(--s6); }
.back a { display: inline-flex; align-items: center; min-height: 46px; font-weight: 600; }
.doc td a, .doc p a { display: inline-flex; align-items: center; min-height: 44px; }

/* ------------------------------------------------------------------ подвал --- */
.footer { background: var(--sky); color: var(--sky-ink-2); padding: var(--s6) 0 var(--s5); }
.footer__grid { display: grid; gap: var(--s4) var(--s5); grid-template-columns: minmax(16rem, 2fr) 1fr 1fr; }
.footer__name { font-family: var(--display); font-weight: 600; color: var(--sky-ink); margin: 0 0 var(--s2); font-size: 1.1rem; letter-spacing: -0.01em; }
.footer__note { margin: 0; font-size: 0.95rem; max-width: 44ch; line-height: 1.55; }
.footer__ttl { font-family: var(--meta); font-size: 0.88rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--sky-ink); margin: 0 0 var(--s1); }
.footer__col { display: flex; flex-direction: column; }
.footer__col a { color: var(--sky-ink-2); text-decoration: none; display: inline-flex; align-items: center; min-height: 44px; font-size: 0.95rem; }
.footer__col a:hover { color: var(--flare-sky); }

@media (max-width: 860px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero { padding: var(--s6) 0 var(--s5); }
  .stage { grid-template-columns: 1fr; gap: var(--s2); }
  .stage h3, .stage__body { grid-column: 1; }
  .stage__num { font-size: 1.3rem; }
  .counters { gap: var(--s3) var(--s4); }
  .counters dd { font-size: 1.7rem; }
  .pager__next { text-align: left; }
  .nav { gap: 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}