/* Кодер Потенциал ИИ: страница продукта «автономный цикл разработки».
   Палитра и шрифты общие с mzelenin.com (pult.css, v4.css):
   чернила #003049, бумага #f3eee0, жёлтый #fcbf49 только для кнопок и цифр.
   Светлая тема: бумага фоном (как v4). Тёмная: чернила фоном (как основной сайт).
   Раскладка: страница читается как путь одной задачи сверху вниз,
   от карточки задачи в шапке до запроса на слияние в конце. */

:root {
  --ink: #003049;
  --paper: #f3eee0;
  --accent: #fcbf49;
  --bg: #f3eee0;
  --surface: #fffdf7;
  --surface-2: #e9e2cf;
  --fg: #003049;
  --fg-soft: #0b3d5c;
  --muted: #586979;
  --line: #d2ccbb;
  --ok: #1f7a52;
  --warn: #a5522f;
  --on-accent: #003049;
  --code-bg: #003049;
  --code-fg: #f3eee0;
  --code-muted: #8fa6b6;
  --shadow: 0 18px 44px rgba(0, 48, 73, 0.09);

  --font-display: 'Unbounded', 'Arial Black', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  --r-shell: 28px;
  --r-core: 20px;
  --r-pill: 100px;
  --space: clamp(3.5rem, 7vw, 6rem);
  --wrap: 72rem;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #002438;
    --surface: #003049;
    --surface-2: #0b3d5c;
    --fg: #f3eee0;
    --fg-soft: #e2dccb;
    --muted: #9fb0bd;
    --line: #2a4a63;
    --ok: #5cc493;
    --warn: #f08a68;
    --code-bg: #001a29;
    --code-fg: #f3eee0;
    --code-muted: #8fa6b6;
    --shadow: 0 18px 44px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #002438;
  --surface: #003049;
  --surface-2: #0b3d5c;
  --fg: #f3eee0;
  --fg-soft: #e2dccb;
  --muted: #9fb0bd;
  --line: #2a4a63;
  --ok: #5cc493;
  --warn: #f08a68;
  --code-bg: #001a29;
  --code-fg: #f3eee0;
  --code-muted: #8fa6b6;
  --shadow: 0 18px 44px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; min-width: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

h1, h2, h3, p, ol, ul, dl, dd, figure { margin: 0; }
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.12;
  text-wrap: balance;
}
a { color: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}
::selection { background: var(--accent); color: var(--ink); }

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
@media (min-width: 720px) {
  .wrap {
    padding-left: max(2rem, env(safe-area-inset-left, 0px));
    padding-right: max(2rem, env(safe-area-inset-right, 0px));
  }
}

.section { padding-block: var(--space); border-top: 1px solid var(--line); }
.section__head { display: grid; gap: 0.9rem; max-width: 46rem; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section__head h2 { font-size: clamp(1.6rem, 3.6vw, 2.5rem); }
.section__head p { color: var(--muted); font-size: 1.05rem; max-width: 62ch; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Навигация */
.nav { padding-block: 1.1rem; }
.nav__row { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.nav__brand { display: grid; line-height: 1.2; text-decoration: none; }
.nav__brand b { font-family: var(--font-display); font-size: 0.95rem; letter-spacing: -0.01em; }
.nav__brand span { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; }
.nav__tools { margin-left: auto; display: flex; align-items: center; gap: 0.75rem; }
.nav__lang { font-family: var(--font-mono); font-size: 0.8rem; display: flex; gap: 0.5rem; color: var(--muted); }
.nav__lang a { text-decoration: none; }
.nav__lang [aria-current] { color: var(--fg); font-weight: 500; }
.theme-btn {
  font: inherit; font-family: var(--font-mono); font-size: 0.75rem;
  border: 1px solid var(--line); background: transparent; color: var(--fg);
  border-radius: var(--r-pill); padding: 0.35rem 0.8rem; cursor: pointer;
}
.theme-btn:hover { border-color: var(--fg); }

/* Кнопки */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-weight: 600; font-size: 1rem; text-decoration: none;
  border-radius: var(--r-pill); padding: 0.85rem 1.4rem;
  border: 1px solid transparent; transition: transform .15s ease, background .15s ease;
}
.btn--primary { background: var(--accent); color: var(--on-accent); }
.btn--primary:hover { transform: translateY(-1px); }
.btn--ghost { border-color: var(--line); color: var(--fg); }
.btn--ghost:hover { border-color: var(--fg); }
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } .btn--primary:hover { transform: none; } }

/* Первый экран */
.hero { padding-block: clamp(2rem, 6vw, 4.5rem) var(--space); }
.hero__grid { display: grid; gap: clamp(2rem, 5vw, 3.5rem); align-items: center; }
@media (min-width: 960px) { .hero__grid { grid-template-columns: 1.15fr 1fr; } }
.hero__text { display: grid; gap: 1.4rem; }
.hero h1 { font-size: clamp(1.9rem, 3.9vw, 2.85rem); max-width: 22ch; }
.hero h1 em { font-style: normal; color: var(--muted); }
.hero__lead { font-size: clamp(1.05rem, 1.7vw, 1.2rem); color: var(--fg-soft); max-width: 36rem; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.hero__note { font-size: 0.9rem; color: var(--muted); }

/* Карточка задачи: главный предмет страницы */
.ticket {
  background: var(--code-bg); color: var(--code-fg);
  border-radius: var(--r-shell); padding: clamp(1.1rem, 3vw, 1.75rem);
  box-shadow: var(--shadow);
  font-family: var(--font-mono); font-size: 0.84rem; line-height: 1.6;
  display: grid; gap: 1rem;
}
.ticket__top { display: flex; justify-content: space-between; gap: 1rem; color: var(--code-muted); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em; }
.ticket__title { font-family: var(--font-body); font-size: 1.05rem; font-weight: 600; line-height: 1.35; }
.ticket__title span { color: var(--code-muted); font-family: var(--font-mono); font-weight: 500; margin-right: 0.4rem; }
.ticket pre { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font: inherit; }
.ticket__label { color: var(--accent); }
.ticket__checks { display: grid; gap: 0.35rem; list-style: none; padding: 0; margin: 0; }
.ticket__checks li { display: flex; justify-content: space-between; gap: 0.75rem; border-bottom: 1px dashed rgba(143, 166, 182, 0.3); padding-bottom: 0.35rem; }
.ticket__checks code { overflow-wrap: anywhere; }
.ticket__checks b { color: #5cc493; font-weight: 500; white-space: nowrap; }
.ticket__flow { display: grid; gap: 0.35rem; list-style: none; padding: 0; margin: 0; color: var(--code-muted); }
.ticket__flow li::before { content: "› "; color: var(--accent); }
.ticket__flow strong { color: var(--code-fg); font-weight: 500; }
.ticket__pr {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 0.75rem;
  background: rgba(243, 238, 224, 0.07); border-radius: var(--r-core); padding: 0.75rem 1rem;
  font-size: 0.8rem;
}
.ticket__pr i { font-style: normal; background: var(--accent); color: var(--ink); padding: 0.1rem 0.6rem; border-radius: var(--r-pill); font-weight: 500; }
.ticket__foot { font-size: 0.72rem; color: var(--code-muted); }

/* Главное условие: ключи клиента */
.keys { background: var(--surface); border-block: 1px solid var(--line); padding-block: clamp(2.5rem, 5vw, 3.5rem); }
.keys__grid { display: grid; gap: 1.75rem; }
@media (min-width: 860px) { .keys__grid { grid-template-columns: 1fr 2fr; align-items: start; } }
.keys h2 { font-size: clamp(1.4rem, 2.6vw, 1.85rem); }
.keys__list { display: grid; gap: 1.25rem; list-style: none; padding: 0; margin: 0; }
@media (min-width: 640px) { .keys__list { grid-template-columns: repeat(3, 1fr); } }
.keys__list li { display: grid; gap: 0.4rem; align-content: start; }
.keys__list b { font-family: var(--font-display); font-size: 1.02rem; }
.keys__list span { color: var(--muted); font-size: 0.97rem; }

/* Механика: пять шагов по порядку */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; counter-reset: step; }
.step {
  display: grid; gap: 0.4rem 1.5rem; padding-block: 1.4rem;
  border-top: 1px solid var(--line);
  grid-template-columns: 3rem 1fr;
}
.step:last-child { border-bottom: 1px solid var(--line); }
@media (min-width: 860px) { .step { grid-template-columns: 4rem 1fr 1.1fr; align-items: baseline; } }
.step__n { font-family: var(--font-mono); font-size: 0.85rem; color: var(--muted); grid-row: span 2; }
@media (min-width: 860px) { .step__n { grid-row: auto; } }
.step h3 { font-size: 1.15rem; }
.step p { color: var(--muted); max-width: 60ch; }
@media (max-width: 859px) { .step p { grid-column: 2; } }
.step code { font-family: var(--font-mono); font-size: 0.88em; background: var(--surface-2); padding: 0.05rem 0.35rem; border-radius: 6px; color: var(--fg); }

.aside-note {
  margin-top: 2rem; display: grid; gap: 1rem;
}
@media (min-width: 760px) { .aside-note { grid-template-columns: 1fr 1fr; } }
.aside-note div { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-core); padding: 1.25rem 1.4rem; display: grid; gap: 0.4rem; align-content: start; }
.aside-note b { font-family: var(--font-display); font-size: 1rem; }
.aside-note p { color: var(--muted); font-size: 0.97rem; }

/* Пилот по неделям */
.weeks { display: grid; gap: 1rem; list-style: none; padding: 0; margin: 0; }
@media (min-width: 760px) { .weeks { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .weeks { grid-template-columns: repeat(4, 1fr); } }
.week { border: 1px solid var(--line); border-radius: var(--r-core); padding: 1.3rem; display: grid; gap: 0.6rem; align-content: start; background: var(--bg); }
.week__when { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.week h3 { font-size: 1.05rem; }
.week ul { padding-left: 1.1rem; margin: 0; color: var(--muted); font-size: 0.95rem; display: grid; gap: 0.3rem; }
.week--final { border-color: var(--fg); }
.pilot-rule { margin-top: 1.5rem; padding: 1.1rem 1.3rem; border-left: 3px solid var(--accent); background: var(--surface); border-radius: 0 var(--r-core) var(--r-core) 0; max-width: 54rem; }

/* Для кого */
.fit { display: grid; gap: 2rem; }
@media (min-width: 900px) { .fit { grid-template-columns: 1.6fr 1fr; } }
.fit__yes { display: grid; gap: 1.1rem; list-style: none; padding: 0; margin: 0; }
.fit__yes li { display: grid; gap: 0.3rem; padding-bottom: 1.1rem; border-bottom: 1px solid var(--line); }
.fit__yes b { font-family: var(--font-display); font-size: 1.05rem; }
.fit__yes span { color: var(--muted); }
.fit__no { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-core); padding: 1.4rem; display: grid; gap: 0.8rem; align-content: start; }
.fit__no h3 { font-size: 1.05rem; }
.fit__no ul { padding-left: 1.1rem; margin: 0; color: var(--muted); display: grid; gap: 0.5rem; font-size: 0.97rem; }

/* Сравнение */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-core); background: var(--surface); }
.compare { width: 100%; border-collapse: collapse; min-width: 40rem; font-size: 0.95rem; }
.compare th, .compare td { text-align: left; vertical-align: top; padding: 0.9rem 1.1rem; border-bottom: 1px solid var(--line); }
.compare tr:last-child th, .compare tr:last-child td { border-bottom: 0; }
.compare thead th { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.compare tbody th { font-weight: 600; width: 22%; }
.compare td { color: var(--muted); }
.compare td.us { color: var(--fg); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.compare-note { margin-top: 1.25rem; color: var(--muted); max-width: 62ch; font-size: 0.97rem; }

/* Цифры */
.numbers { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); }
.num { border-top: 2px solid var(--fg); padding-top: 0.9rem; display: grid; gap: 0.35rem; align-content: start; }
.num b { font-family: var(--font-display); font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-variant-numeric: tabular-nums; letter-spacing: -0.03em; }
.num span { color: var(--muted); font-size: 0.95rem; }
.num--goal b { color: var(--warn); }
.numbers-note { margin-top: 1.5rem; color: var(--muted); max-width: 64ch; font-size: 0.95rem; }

/* Безопасность */
.secure { display: grid; gap: 0; list-style: none; padding: 0; margin: 0; }
@media (min-width: 760px) { .secure { grid-template-columns: repeat(2, 1fr); column-gap: 2.5rem; } }
.secure li { display: grid; grid-template-columns: 1.5rem 1fr; gap: 0.75rem; padding-block: 1rem; border-top: 1px solid var(--line); }
.secure li::before { content: "✓"; font-family: var(--font-mono); color: var(--ok); font-weight: 600; }
.secure b { display: block; margin-bottom: 0.2rem; }
.secure span { color: var(--muted); font-size: 0.97rem; }

/* Цены */
.prices { display: grid; gap: 1rem; }
@media (min-width: 900px) { .prices { grid-template-columns: repeat(3, 1fr); } }
.price { border: 1px solid var(--line); border-radius: var(--r-shell); padding: 1.6rem; display: grid; gap: 0.8rem; align-content: start; background: var(--bg); }
.price--main { background: var(--surface); border-color: var(--fg); }
.price__name { font-family: var(--font-mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.price__sum { font-family: var(--font-display); font-size: clamp(1.4rem, 2.6vw, 1.85rem); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; line-height: 1.2; }
.price__sum small { display: block; font-family: var(--font-body); font-size: 0.95rem; font-weight: 500; color: var(--muted); letter-spacing: 0; margin-top: 0.3rem; }
.price ul { padding-left: 1.1rem; margin: 0; color: var(--muted); display: grid; gap: 0.35rem; font-size: 0.96rem; }

/* Вопросы */
.faq { display: grid; max-width: 52rem; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; list-style: none; padding-block: 1.15rem; padding-right: 2rem;
  font-weight: 600; font-size: 1.05rem; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0.25rem; top: 1.05rem; font-family: var(--font-mono); color: var(--muted); font-size: 1.2rem; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding-bottom: 1.2rem; color: var(--muted); max-width: 64ch; }

/* Финальный призыв */
.cta { background: var(--code-bg); color: var(--code-fg); padding-block: var(--space); }
.cta__grid { display: grid; gap: 2rem; }
@media (min-width: 900px) { .cta__grid { grid-template-columns: 1.3fr 1fr; align-items: end; } }
.cta h2 { font-size: clamp(1.7rem, 4vw, 2.8rem); max-width: 20ch; }
.cta p { color: var(--code-muted); max-width: 52ch; margin-top: 1rem; }
.cta__box { display: grid; gap: 1rem; }
.cta__bring { font-family: var(--font-mono); font-size: 0.85rem; color: var(--code-muted); display: grid; gap: 0.35rem; list-style: none; padding: 0; margin: 0; }
.cta__bring li::before { content: "› "; color: var(--accent); }
.cta__contact { font-size: 0.95rem; color: var(--code-muted); }
.cta__contact span { color: var(--code-fg); user-select: all; font-family: var(--font-mono); font-size: 0.9rem; }
.cta .btn--primary { justify-self: start; }

.footer { padding-block: 2rem; font-size: 0.85rem; color: var(--muted); }
.footer__row { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; justify-content: space-between; }
.footer a { text-decoration: none; }
.footer a:hover { text-decoration: underline; }