/* ============================================================
   QAI Search — лендинг
   Источник стиля: QAI-Search-Brandbook-v1 (переменные и классы
   перенесены из брендбука буквально, затем расширены).
   Палитра 70/20/7/3: Qağaz / Tereń / Kök / Jasyl.
   ============================================================ */

:root {
  --qagaz: #F6F3EC;
  /* бумага — основной фон */
  --teren: #0F3A3C;
  /* глубокий петроль — текст, тёмные блоки */
  --kok: #3452FF;
  /* электрик — CTA, ссылки */
  --jasyl: #BFF34E;
  /* лайм-маркер — подсветка, ≤3% площади */
  --kul: #5B7270;
  /* вторичный текст */
  --aq: #FFFFFF;
  /* карточки */
  --line: rgba(15, 58, 60, .14);
  --line-dark: rgba(246, 243, 236, .16);
  --muted-dark: rgba(246, 243, 236, .72);
  --display: 'Onest', 'Inter Tight', 'Inter', system-ui, sans-serif;
  --text: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --r-card: 16px;
  /* скругление карточек */
  --r-block: 24px;
  /* скругление крупных тёмных блоков */
  --section-gap: 96px;
  /* минимальный воздух между смысловыми блоками */
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box
}

html {
  scroll-behavior: smooth
}

body {
  background: var(--qagaz);
  /* точечная сетка: шаг 26 px, петроль 10% */
  background-image: radial-gradient(rgba(15, 58, 60, .10) 1px, transparent 1px);
  background-size: 26px 26px;
  color: var(--teren);
  font-family: var(--text);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%
}

a {
  color: var(--kok)
}

a:hover {
  color: var(--teren)
}

:focus-visible {
  outline: 2px solid var(--kok);
  outline-offset: 3px;
  border-radius: 4px
}

.dark :focus-visible,
.site-hero :focus-visible {
  outline-color: var(--jasyl)
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -64px;
  z-index: 200;
  background: var(--teren);
  color: var(--qagaz);
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: top .15s ease;
}

.skip-link:focus {
  top: 12px;
  color: var(--qagaz)
}

/* ---------- база из брендбука ---------- */
.wrap {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 28px
}

section.page {
  padding: var(--section-gap) 0;
  border-bottom: 1px solid var(--line)
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--kul);
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 26px;
}

.eyebrow b {
  color: var(--teren);
  font-weight: 700
}

.eyebrow::after {
  content: "";
  height: 1px;
  background: var(--line);
  flex: 1
}

h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.06;
  letter-spacing: -.025em
}

h2 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 22px
}

h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: -.01em;
  margin-bottom: 10px
}

p.lead {
  font-size: 20px;
  max-width: 64ch
}

p+p {
  margin-top: 14px
}

.muted {
  color: var(--kul)
}

.hl {
  background: var(--jasyl);
  color: var(--teren);
  padding: .04em .18em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone
}

.comment {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--kul)
}

.comment::before {
  content: "<!-- "
}

.comment::after {
  content: " -->"
}

.grid {
  display: grid;
  gap: 20px
}

.g2 {
  grid-template-columns: repeat(2, 1fr)
}

.g3 {
  grid-template-columns: repeat(3, 1fr)
}

.g4 {
  grid-template-columns: repeat(4, 1fr)
}

.card {
  background: var(--aq);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 26px
}

.dark {
  background: var(--teren);
  color: var(--qagaz);
  border-radius: var(--r-block);
  padding: 56px 48px
}

.dark .muted {
  color: var(--muted-dark)
}

.dark .card {
  background: rgba(246, 243, 236, .06);
  border-color: var(--line-dark);
  color: var(--qagaz)
}

.dark .comment {
  color: rgba(246, 243, 236, .55)
}

.dark .eyebrow {
  color: var(--muted-dark)
}

.dark .eyebrow b {
  color: var(--qagaz)
}

.dark .eyebrow::after {
  background: var(--line-dark)
}

.btn {
  display: inline-block;
  background: var(--kok);
  color: #fff;
  font-family: var(--text);
  font-weight: 600;
  font-size: 16px;
  padding: 13px 26px;
  border-radius: 999px;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  transition: background-color .15s ease;
}

.btn:hover {
  background: #2a43d6;
  color: #fff
}

.btn.ghost {
  background: transparent;
  color: inherit;
  border: 1.5px solid currentColor
}

.btn.ghost:hover {
  background: rgba(246, 243, 236, .08)
}

.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 4px 12px;
}

ul.clean {
  list-style: none
}

ul.clean li {
  padding: 9px 0 9px 26px;
  position: relative;
  border-bottom: 1px dashed var(--line)
}

ul.clean li::before {
  content: "→";
  position: absolute;
  left: 0;
  font-family: var(--mono);
  color: var(--kok)
}

.quotecard {
  background: var(--aq);
  border-radius: var(--r-card);
  padding: 26px;
  border: 1px solid var(--line)
}

.quotecard .q {
  font-size: 17px;
  line-height: 1.55
}

.quotecard .src {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 18px
}

.quotecard .dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--teren);
  color: var(--jasyl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.quotecard .who {
  font-weight: 600;
  font-size: 14.5px
}

.quotecard .when {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--kul)
}

/* ---------- шапка ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 243, 236, .86);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-header .bar {
  max-width: 1400px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--teren)
}

.lockup:hover {
  color: var(--teren)
}

.lockup img {
  width: 38px;
  height: 38px
}

.lockup .word {
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: -.02em;
  white-space: nowrap
}

.lockup .word b {
  font-weight: 800
}

.lockup .word span {
  font-weight: 500
}

.site-nav {
  margin-left: auto
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 26px;
  align-items: center
}

.site-nav a {
  text-decoration: none;
  color: var(--teren);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  border-bottom-color: var(--kok);
  color: var(--teren)
}

.header-cta {
  flex-shrink: 0
}

.burger {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
  position: relative;
}

.burger span {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--teren);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}

.burger span:nth-child(1) {
  top: 15px
}

.burger span:nth-child(2) {
  top: 21px
}

.burger span:nth-child(3) {
  top: 27px
}

.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg)
}

.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0
}

.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg)
}

/* ---------- hero: тёмный блок с проверкой ---------- */
.site-hero {
  padding: 44px 0 var(--section-gap)
}

.hero-block {
  background: var(--teren);
  color: var(--qagaz);
  border-radius: var(--r-block);
  padding: 64px 56px;
  display: flex;
  gap: 48px;
  align-items: center;
}

.hero-copy {
  flex: 1.4;
  min-width: 0
}

.hero-mark {
  flex: .6;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--qagaz)
}

.hero-mark svg {
  width: min(260px, 100%);
  height: auto;
  overflow: visible
}

.hero-block .comment {
  color: rgba(246, 243, 236, .55)
}

.hero-sub {
  margin-top: 20px;
  max-width: 52ch;
  color: var(--muted-dark);
  font-size: 19px
}

.check-widget {
  margin-top: 32px;
  max-width: 560px
}

.check-row {
  display: flex;
  gap: 12px
}

.check-row input {
  flex: 1;
  min-width: 0;
  font-family: var(--text);
  font-size: 16px;
  color: var(--teren);
  background: var(--aq);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 13px 22px;
}

.check-row input::placeholder {
  color: var(--kul)
}

.check-note {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 13px;
  color: rgba(246, 243, 236, .55)
}

.check-state-label {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--jasyl);
  margin-bottom: 12px;
}

.check-done {
  border: 1px dashed var(--line-dark);
  border-radius: var(--r-card);
  padding: 22px 26px;
  font-size: 17px;
}

.check-done b {
  font-weight: 600
}

[hidden] {
  display: none !important
}

/* ---------- сплит «до/после» ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: stretch;
  margin-top: 36px
}

.split .card {
  display: flex;
  flex-direction: column;
  gap: 14px
}

.split-arrow {
  align-self: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  color: var(--kok);
  font-size: 34px;
  line-height: 1;
}

.ai-answer {
  font-size: 15.5px;
  line-height: 1.6
}

.ai-answer p+p {
  margin-top: 10px
}

.ai-meta {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--kul);
  letter-spacing: .06em;
  text-transform: uppercase
}

.ai-q {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--kul)
}

.card-now .ai-answer {
  color: var(--kul)
}

.footnote-src {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: auto;
  padding-top: 6px
}

.footnote-src .dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--teren);
  color: var(--jasyl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.footnote-src .who {
  font-weight: 600;
  font-size: 14.5px
}

.footnote-src .when {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--kul)
}

sup.fn {
  font-family: var(--mono);
  font-size: .62em;
  color: var(--kok)
}

/* ---------- услуги ---------- */
.service-card .tag {
  margin-bottom: 16px;
  color: var(--kul)
}

.service-card p {
  font-size: 15.5px
}

/* ---------- как работаем ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 36px
}

.step {
  border-top: 1px solid var(--teren);
  padding-top: 18px
}

.step .num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--kok)
}

.step h3 {
  margin-top: 10px
}

.step p {
  font-size: 15px;
  color: var(--kul)
}

.steps-note {
  margin-top: 34px;
  font-size: 18px
}

.steps-note b {
  font-weight: 600
}

/* ---------- результаты (тёмный блок) ---------- */
.results-sub {
  font-size: 19px;
  color: var(--muted-dark);
  max-width: 44ch
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px
}

.stat .value {
  font-family: var(--display);
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: clamp(38px, 4.6vw, 56px);
  line-height: 1.05;
  white-space: nowrap;
}

.stat .label {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted-dark)
}

/* ---------- команда ---------- */
.team-grid {
  margin-top: 36px
}

.person .ava {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--qagaz);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--kul);
  margin-bottom: 16px;
}

.person .role {
  font-size: 14.5px;
  color: var(--kul)
}

.person .fact {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--kul);
  border-top: 1px dashed var(--line);
  padding-top: 12px
}

/* ---------- FAQ ---------- */
.faq {
  margin-top: 10px;
  border-top: 1px solid var(--line)
}

.faq-item {
  border-bottom: 1px solid var(--line)
}

.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.01em;
  color: var(--teren);
  padding: 20px 4px;
}

.faq-q .marker {
  font-family: var(--mono);
  font-size: 18px;
  color: var(--kok);
  flex-shrink: 0;
  transition: transform .2s ease
}

.faq-q[aria-expanded="true"] .marker {
  transform: rotate(90deg)
}

.faq-a {
  padding: 0 4px 22px;
  max-width: 70ch
}

.faq-a p {
  font-size: 16px
}

/* ---------- финальный CTA ---------- */
.cta-block {
  text-align: center;
  padding: 72px 48px
}

.cta-block h2 {
  font-size: clamp(36px, 6vw, 64px);
  margin-bottom: 14px
}

.cta-block p {
  color: var(--muted-dark);
  font-size: 18px
}

.cta-actions {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap
}

/* ---------- футер ---------- */
.site-footer {
  padding: 64px 0 48px
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap
}

.slogans {
  list-style: none;
  margin-top: 22px
}

.slogans li {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.01em;
  padding: 4px 0
}

.slogans li[lang] {
  color: var(--kul);
  font-weight: 500
}

.slogans li:first-child {
  color: var(--teren)
}

.footer-contacts {
  font-size: 15.5px
}

.footer-contacts h3 {
  font-size: 16px
}

.footer-contacts a {
  text-decoration: none
}

.footer-contacts a:hover {
  text-decoration: underline
}

.footer-contacts li {
  list-style: none;
  padding: 3px 0
}

.footer-bottom {
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--kul);
}

.footer-bottom a {
  color: var(--kul)
}

.footer-bottom a:hover {
  color: var(--teren)
}

/* ============================================================
   Адаптив: 1200 / 768 / 380
   ============================================================ */

@media (max-width:1199px) {
  .hero-block {
    padding: 52px 44px
  }
}

@media (max-width:960px) {
  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--qagaz);
    border-bottom: 1px solid var(--line);
    padding: 10px 28px 22px;
    margin-left: 0;
  }

  .site-nav.open {
    display: block
  }

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px
  }

  .site-nav li {
    width: 100%
  }

  .site-nav a {
    display: block;
    width: 100%;
    padding: 12px 2px;
    font-size: 17px;
    border-bottom: 1px dashed var(--line)
  }

  .header-cta {
    display: none
  }

  .burger {
    display: block
  }

  .hero-mark {
    display: none
  }
}

@media (max-width:860px) {

  .g2,
  .g3,
  .g4 {
    grid-template-columns: 1fr
  }

  .steps {
    grid-template-columns: 1fr 1fr
  }

  .stats {
    grid-template-columns: 1fr
  }

  .stat .value {
    font-size: 44px
  }

  .split {
    grid-template-columns: 1fr
  }

  .split-arrow {
    transform: rotate(90deg);
    padding: 4px 0
  }

  .split-arrow .comment {
    transform: rotate(-90deg) translateX(-6px);
    display: none
  }

  .split-comment-mobile {
    display: block;
    text-align: center;
    margin-top: 14px
  }
}

@media (min-width:861px) {
  .split-comment-mobile {
    display: none
  }
}

@media (max-width:767px) {
  :root {
    --section-gap: 72px
  }

  body {
    font-size: 16px
  }

  .hero-block {
    padding: 44px 28px;
    border-radius: var(--r-block)
  }

  .dark {
    padding: 44px 28px
  }

  .cta-block {
    padding: 56px 24px
  }

  .check-row {
    flex-direction: column
  }

  .check-row .btn {
    width: 100%;
    text-align: center
  }

  .steps {
    grid-template-columns: 1fr
  }

  .footer-top {
    flex-direction: column
  }
}

@media (max-width:420px) {
  .wrap {
    padding: 0 20px
  }

  .site-header .bar {
    padding: 12px 20px
  }

  .lockup img {
    width: 32px;
    height: 32px
  }

  .lockup .word {
    font-size: 19px
  }

  h1 {
    font-size: clamp(32px, 9.5vw, 40px)
  }

  .hero-block {
    padding: 36px 22px
  }

  .dark {
    padding: 36px 22px
  }

  p.lead {
    font-size: 18px
  }
}

/* ---------- доступность: движение ---------- */
@media (prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important
  }
}