/* ==========================================================================
   anton-kirillov.ru — оформление сайта
   Один файл, без внешних библиотек. Правки — по разделам ниже.
   ========================================================================== */

/* 1. Переменные ---------------------------------------------------------- */
:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --bg-dark: #0b1220;
  --ink: #0f172a;
  --ink-soft: #48566f;
  --ink-mute: #7d8ba1;
  --line: #e4e9f2;
  --line-soft: #eef1f7;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --brand-soft: #eaf0ff;
  --violet: #7c3aed;
  --ok: #0f9d6a;
  --ok-soft: #e6f7f0;
  --warn: #b45309;
  --warn-soft: #fdf3e3;
  --pro: #7c3aed;
  --pro-soft: #f2ecfe;
  --radius-lg: 22px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow: 0 10px 30px -12px rgba(15, 23, 42, .18);
  --shadow-lg: 0 30px 60px -30px rgba(15, 23, 42, .35);
  --wrap: 1180px;
  --font: "Inter", "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI",
          Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

/* 2. База ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

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

img { max-width: 100%; height: auto; display: block; }

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dark); }

h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .6em; font-weight: 700; letter-spacing: -.02em; }
h1 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.15rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }

ul, ol { padding-left: 1.15em; }
li { margin-bottom: .35em; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.section { padding: 74px 0; }
.section--soft { background: var(--bg-soft); }
.section--tight { padding: 52px 0; }
.center { text-align: center; }
.muted { color: var(--ink-soft); }
.small { font-size: .92rem; }
.lead { font-size: 1.14rem; color: var(--ink-soft); max-width: 62ch; }

.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head.center { margin-left: auto; margin-right: auto; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--brand); margin-bottom: 12px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--brand); color: #fff;
  padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* 3. Шапка --------------------------------------------------------------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.header__inner {
  display: flex; align-items: center; gap: 22px; min-height: 68px;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 700; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand__mark {
  width: 36px; height: 36px; border-radius: 11px; flex: 0 0 36px;
  background: linear-gradient(135deg, var(--brand), var(--violet));
  color: #fff; display: grid; place-items: center; font-size: 17px; font-weight: 800;
}
.brand__name { font-size: 1rem; letter-spacing: -.01em; }
.brand__role { display: block; font-size: .75rem; font-weight: 500; color: var(--ink-mute); }

.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  color: var(--ink-soft); font-size: .95rem; font-weight: 500;
  padding: 9px 13px; border-radius: 9px;
}
.nav a:hover { background: var(--bg-soft); color: var(--ink); }
.nav a.is-active { color: var(--brand); background: var(--brand-soft); }

.header__cta { display: flex; gap: 10px; align-items: center; }

.burger {
  display: none; margin-left: auto; background: none; border: 1px solid var(--line);
  border-radius: 10px; width: 42px; height: 38px; cursor: pointer; padding: 0 10px;
}
.burger span { display: block; height: 2px; background: var(--ink); margin: 4px 0; border-radius: 2px; }

/* 4. Кнопки -------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: 11px; font-weight: 600; font-size: .96rem;
  border: 1px solid transparent; cursor: pointer; transition: .16s ease;
  text-align: center;
}
.btn--primary { background: var(--brand); color: #fff; box-shadow: 0 8px 20px -10px rgba(37, 99, 235, .9); }
.btn--primary:hover { background: var(--brand-dark); color: #fff; transform: translateY(-1px); }
.btn--ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: #c9d3e5; color: var(--ink); background: #fbfcfe; }
.btn--light { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .28); }
.btn--light:hover { background: rgba(255, 255, 255, .2); color: #fff; }
.btn--sm { padding: 9px 15px; font-size: .9rem; border-radius: 9px; }
.btn--block { width: 100%; }

/* 5. Первый экран -------------------------------------------------------- */
.hero {
  position: relative; overflow: hidden; color: #eaf0ff;
  background:
    radial-gradient(900px 420px at 12% -8%, rgba(124, 58, 237, .38), transparent 62%),
    radial-gradient(760px 420px at 88% 8%, rgba(37, 99, 235, .40), transparent 60%),
    linear-gradient(180deg, #0b1220 0%, #101a2e 100%);
  padding: 74px 0 62px;
}
.hero__grid {
  display: grid; grid-template-columns: 1.08fr .92fr; gap: 46px; align-items: center;
}
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero__lead { font-size: 1.16rem; color: #b9c6e0; max-width: 56ch; }
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 26px 0 30px; }
.hero__note { font-size: .9rem; color: #8fa0bf; }

.hero__stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
  border-top: 1px solid rgba(255, 255, 255, .14); padding-top: 22px;
}
.hero__stat b { display: block; font-size: 1.5rem; color: #fff; letter-spacing: -.02em; }
.hero__stat span { font-size: .84rem; color: #93a3c1; }

/* окно с «самопишущимся кодом» */
.codecard {
  border-radius: var(--radius); overflow: hidden;
  background: rgba(9, 15, 28, .82); border: 1px solid rgba(255, 255, 255, .13);
  box-shadow: var(--shadow-lg);
}
.codecard__bar {
  display: flex; align-items: center; gap: 7px; padding: 11px 14px;
  background: rgba(255, 255, 255, .05); border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.codecard__dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, .22); }
.codecard__title { margin-left: 8px; font-size: .8rem; color: #8ea0c0; font-family: var(--mono); }
.codecard__body {
  margin: 0; padding: 18px 18px 22px; min-height: 236px;
  font-family: var(--mono); font-size: .82rem; line-height: 1.75; color: #cdd9f2;
  white-space: pre-wrap; word-break: break-word;
}
.codecard__body .k { color: #c4a2ff; }
.codecard__body .s { color: #7ee2b8; }
.codecard__body .c { color: #64748b; }
.codecard__body .f { color: #7fb4ff; }
.cursor { display: inline-block; width: 8px; height: 15px; background: #7fb4ff;
          vertical-align: -2px; animation: blink 1s steps(2, start) infinite; }
@keyframes blink { to { visibility: hidden; } }

/* 6. Полоса направлений -------------------------------------------------- */
.directions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.direction {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow-sm);
}
.direction__icon {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-soft); font-size: 20px; margin-bottom: 12px;
}
.direction h3 { margin-bottom: .35em; font-size: 1.05rem; }
.direction p { margin: 0; font-size: .93rem; color: var(--ink-soft); }

/* 7. Карточки сервисов --------------------------------------------------- */
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 26px; }
.filter {
  border: 1px solid var(--line); background: #fff; color: var(--ink-soft);
  padding: 8px 15px; border-radius: 999px; font-size: .9rem; font-weight: 600; cursor: pointer;
}
.filter:hover { border-color: #c9d3e5; }
.filter.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.card {
  display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
  box-shadow: var(--shadow-sm); transition: .18s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #d3dcec; }
.card__top { display: flex; align-items: flex-start; gap: 13px; margin-bottom: 12px; }
.card__icon {
  width: 44px; height: 44px; flex: 0 0 44px; border-radius: 13px; display: grid;
  place-items: center; font-size: 22px; background: var(--brand-soft);
}
.card h3 { margin: 0 0 3px; font-size: 1.08rem; }
.card__lead { font-size: .93rem; color: var(--ink-soft); margin: 0 0 14px; }
.card__tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.tag {
  font-size: .76rem; font-weight: 600; padding: 4px 9px; border-radius: 999px;
  background: var(--bg-soft); color: var(--ink-soft);
}
.card__foot { margin-top: auto; display: flex; gap: 9px; align-items: center; padding-top: 6px; }

.badge {
  font-size: .74rem; font-weight: 700; padding: 4px 10px; border-radius: 999px;
  white-space: nowrap; letter-spacing: .01em;
}
.badge--free { background: var(--ok-soft); color: var(--ok); }
.badge--pro { background: var(--pro-soft); color: var(--pro); }
.badge--soon { background: var(--warn-soft); color: var(--warn); }

/* 8. Шаги ---------------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: s; }
.step { position: relative; padding-left: 60px; }
.step::before {
  counter-increment: s; content: counter(s);
  position: absolute; left: 0; top: 0; width: 42px; height: 42px; border-radius: 13px;
  background: linear-gradient(135deg, var(--brand), var(--violet)); color: #fff;
  display: grid; place-items: center; font-weight: 800;
}
.step h3 { font-size: 1.03rem; margin-bottom: .3em; }
.step p { font-size: .93rem; color: var(--ink-soft); margin: 0; }

.trust {
  display: flex; gap: 12px; align-items: flex-start; margin-top: 30px;
  background: var(--ok-soft); border: 1px solid #cdece0; border-radius: var(--radius);
  padding: 16px 18px; font-size: .93rem; color: #14563f;
}

/* 9. Блог ---------------------------------------------------------------- */
.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.post-card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; transition: .18s ease; height: 100%;
}
.post-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #d3dcec; }
.post-card__cover {
  aspect-ratio: 16 / 9; background: linear-gradient(135deg, #e8eeff, #f3ecfe);
  display: grid; place-items: center; font-size: 30px; color: #b9c6e0;
  border-bottom: 1px solid var(--line-soft); overflow: hidden;
}
.post-card__cover img { width: 100%; height: 100%; object-fit: cover; }
.post-card__body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.post-card__meta { display: flex; gap: 9px; align-items: center; font-size: .8rem; color: var(--ink-mute); margin-bottom: 9px; }
.post-card h3 { font-size: 1.06rem; margin-bottom: .4em; }
.post-card h3 a { color: var(--ink); }
.post-card h3 a:hover { color: var(--brand); }
.post-card p { font-size: .92rem; color: var(--ink-soft); margin: 0; }
.post-card__more { margin-top: auto; padding-top: 14px; font-size: .9rem; font-weight: 600; }

.post-list { display: grid; gap: 16px; }
.post-row {
  display: grid; grid-template-columns: 190px 1fr; gap: 22px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 20px 16px 16px;
}
.post-row__cover {
  aspect-ratio: 16 / 10; border-radius: var(--radius-sm); overflow: hidden;
  background: linear-gradient(135deg, #e8eeff, #f3ecfe); display: grid; place-items: center;
  color: #b9c6e0; font-size: 26px;
}
.post-row__cover img { width: 100%; height: 100%; object-fit: cover; }
.post-row h3 { font-size: 1.08rem; margin-bottom: .3em; }
.post-row h3 a { color: var(--ink); }
.post-row h3 a:hover { color: var(--brand); }
.post-row p { margin: 0; font-size: .93rem; color: var(--ink-soft); }

/* 10. Статья ------------------------------------------------------------- */
.article { max-width: 760px; margin: 0 auto; }
.article__head { margin-bottom: 26px; }
.article__meta { display: flex; gap: 12px; align-items: center; color: var(--ink-mute); font-size: .9rem; margin-bottom: 14px; }
.article__body { font-size: 1.06rem; }
.article__body h2 { margin-top: 1.7em; font-size: 1.5rem; }
.article__body h3 { margin-top: 1.5em; }
.article__body img {
  border-radius: var(--radius); border: 1px solid var(--line);
  margin: 22px 0 8px; box-shadow: var(--shadow-sm);
}
.article__body blockquote {
  margin: 22px 0; padding: 4px 20px; border-left: 3px solid var(--brand);
  background: var(--bg-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-soft);
}
.article__body code {
  font-family: var(--mono); font-size: .88em; background: var(--bg-soft);
  padding: 2px 6px; border-radius: 6px; border: 1px solid var(--line-soft);
}
.article__body pre {
  background: var(--bg-dark); color: #dbe6ff; padding: 16px 18px;
  border-radius: var(--radius-sm); overflow-x: auto; font-size: .86rem;
}
.article__body pre code { background: none; border: none; color: inherit; padding: 0; }
.article__body table { width: 100%; border-collapse: collapse; margin: 22px 0; font-size: .95rem; }
.article__body th, .article__body td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.article__body th { background: var(--bg-soft); }

/* 11. Тарифы ------------------------------------------------------------- */
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: start; }
.plan {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; display: flex; flex-direction: column; height: 100%;
}
.plan--featured { border-color: var(--brand); box-shadow: var(--shadow); position: relative; }
.plan--featured::after {
  content: "выбирают чаще"; position: absolute; top: -12px; left: 22px;
  background: var(--brand); color: #fff; font-size: .72rem; font-weight: 700;
  padding: 4px 11px; border-radius: 999px;
}
.plan__name { font-weight: 700; font-size: 1.05rem; margin-bottom: 4px; }
.plan__price { font-size: 1.9rem; font-weight: 800; letter-spacing: -.03em; }
.plan__price small { font-size: .85rem; font-weight: 500; color: var(--ink-mute); }
.plan__hint { font-size: .86rem; color: var(--ink-mute); margin-bottom: 16px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 20px; font-size: .93rem; }
.plan li { padding-left: 24px; position: relative; margin-bottom: 8px; color: var(--ink-soft); }
.plan li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--ok); font-weight: 700;
}
.plan__foot { margin-top: auto; }

/* 12. FAQ ---------------------------------------------------------------- */
.faq { max-width: 800px; margin: 0 auto; }
.faq details {
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff;
  margin-bottom: 10px; padding: 4px 18px;
}
.faq summary {
  cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none;
  display: flex; justify-content: space-between; gap: 14px; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.3rem; color: var(--ink-mute); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 16px; color: var(--ink-soft); }

/* 13. Обо мне ------------------------------------------------------------ */
.about { display: grid; grid-template-columns: 260px 1fr; gap: 36px; align-items: start; }
.about__photo {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  background: linear-gradient(135deg, #e8eeff, #f3ecfe); aspect-ratio: 3 / 4;
  display: grid; place-items: center; font-size: 42px; color: #b9c6e0;
}
.about__facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 22px; }
.fact { background: var(--bg-soft); border-radius: var(--radius-sm); padding: 14px 16px; }
.fact b { display: block; font-size: 1.35rem; }
.fact span { font-size: .86rem; color: var(--ink-soft); }

/* 14. Финальный призыв --------------------------------------------------- */
.cta {
  background:
    radial-gradient(700px 300px at 20% 0%, rgba(124, 58, 237, .35), transparent 60%),
    linear-gradient(120deg, #101a2e, #0b1220);
  color: #fff; border-radius: var(--radius-lg); padding: 44px 40px;
  display: flex; gap: 28px; align-items: center; justify-content: space-between;
  flex-wrap: wrap;
}
.cta h2 { color: #fff; margin-bottom: .35em; }
.cta p { color: #b9c6e0; margin: 0; max-width: 52ch; }

/* 15. Подвал ------------------------------------------------------------- */
.footer { background: var(--bg-dark); color: #93a3c1; padding: 52px 0 30px; margin-top: 0; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.footer h4 { color: #fff; font-size: .95rem; margin-bottom: 14px; }
.footer a { color: #b9c6e0; font-size: .93rem; }
.footer a:hover { color: #fff; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 9px; }
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 34px; padding-top: 20px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: .86rem;
}

/* 16. Служебное ---------------------------------------------------------- */
.breadcrumbs { font-size: .88rem; color: var(--ink-mute); padding: 22px 0 0; }
.breadcrumbs a { color: var(--ink-mute); }
.breadcrumbs a:hover { color: var(--brand); }

.notice {
  border: 1px solid #f0dcb4; background: var(--warn-soft); color: #7a4a08;
  border-radius: var(--radius-sm); padding: 14px 16px; font-size: .92rem;
}

.compare { width: 100%; border-collapse: collapse; font-size: .95rem; margin: 22px 0; }
.compare th, .compare td { border-bottom: 1px solid var(--line); padding: 12px 14px; text-align: left; }
.compare th { background: var(--bg-soft); font-weight: 700; }
.compare td:first-child { font-weight: 600; }

.hidden { display: none !important; }

/* 17. Мобильная версия --------------------------------------------------- */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .cards, .posts, .directions, .steps, .plans { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .about { grid-template-columns: 1fr; }
  .about__photo { max-width: 260px; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .section { padding: 52px 0; }
  .nav { display: none; }
  .nav.is-open {
    display: flex; flex-direction: column; position: absolute; left: 0; right: 0; top: 68px;
    background: #fff; border-bottom: 1px solid var(--line); padding: 10px 16px 16px;
  }
  .header__inner { position: relative; }
  .burger { display: block; }
  .header__cta { display: none; }
  .cards, .posts, .directions, .steps, .plans, .hero__stats { grid-template-columns: 1fr; }
  .hero__stats { gap: 18px; }
  .post-row { grid-template-columns: 1fr; }
  .post-row__cover { aspect-ratio: 16 / 9; }
  .footer__grid { grid-template-columns: 1fr; }
  .cta { padding: 32px 22px; }
  .article__body { font-size: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
}

/* 18. Печать ------------------------------------------------------------- */
@media print {
  .header, .footer, .cta, .hero__actions { display: none; }
  body { font-size: 12pt; }
}

/* 19. Заглушка вместо скриншота ------------------------------------------ */
.shot-placeholder {
  margin: 22px 0 8px; padding: 34px 22px; border-radius: var(--radius);
  border: 1px dashed #c9d6ee; background:
    linear-gradient(135deg, #f2f6ff, #f7f3ff);
  display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center;
}
.shot-placeholder__badge {
  font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--brand); background: #fff; border: 1px solid #d7e2fa;
  padding: 5px 12px; border-radius: 999px;
}
.shot-placeholder__text { color: var(--ink-soft); font-size: .95rem; max-width: 46ch; }