/* ============ Tokens & base ============ */
:root {
  --bg: #0A0A0B;
  --text: #F2F1EC;
  --muted: #8F8F89;
  --accent: #C9F73A;
  --line: rgba(242, 241, 236, .14);
  --line-soft: rgba(242, 241, 236, .07);
  --header-h: 68px;
  --font-display: 'Unbounded', 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* Зерно поверх всего — убирает "плоский" цифровой фон */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 2000;
  pointer-events: none;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.1;
  margin: 0 0 .5em;
}

p { margin: 0 0 1em; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }

::selection { background: var(--accent); color: #0A0A0B; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.container {
  width: min(100% - 48px, 1200px);
  margin-inline: auto;
}

/* Mono-метки секций */
.kicker {
  font: 400 .78rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--accent);
  margin: 0 0 18px;
}

.section-title {
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .01em;
  margin-bottom: 1.4em;
}

.section-sub {
  color: var(--muted);
  margin: -2em 0 2.6em;
  max-width: 520px;
}

.section { padding: clamp(72px, 9vw, 128px) 0; border-top: 1px solid var(--line-soft); }
.section-cta { margin-top: 56px; }

/* ============ Buttons ============ */
.btn-solid {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #0A0A0B;
  font: 400 .82rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 16px 26px;
  border: 0;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color .2s ease, transform .2s ease;
}
.btn-solid:hover { background: #DDFF6B; }
.btn-solid:active { transform: translateY(1px); }
.btn-solid span { transition: transform .2s ease; }
.btn-solid:hover span { transform: translateX(4px); }

.btn-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 400 .82rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  transition: color .2s ease, border-color .2s ease;
}
.btn-line:hover { color: var(--accent); border-color: var(--accent); }

/* ============ Header ============ */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background-color .25s ease, border-color .25s ease;
}
.site-header.scrolled {
  background: rgba(10, 10, 11, .92);
  border-bottom-color: var(--line);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  font: 500 1.05rem var(--font-display);
  letter-spacing: .01em;
}
.logo-dot { color: var(--accent); }

.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a {
  font: 400 .78rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  transition: color .2s ease;
}
.site-nav a:hover { color: var(--text); }
.site-nav .nav-cta {
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 10px 16px;
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}
.site-nav .nav-cta:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 0;
  cursor: pointer;
}
.burger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  transition: transform .25s ease, opacity .2s ease;
}
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ Hero ============ */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding-top: calc(var(--header-h) + clamp(48px, 10vh, 110px));
}
.hero > .container { flex: 1; }

.hero-meta {
  font: 400 .78rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
  margin-bottom: 34px;
}
.meta-mark { color: var(--accent); }

.hero h1 {
  font-size: clamp(2rem, 6.2vw, 4.5rem);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.04;
  letter-spacing: .005em;
  margin-bottom: 30px;
}
.hero h1 .accent { color: var(--accent); }

/* Построчное появление заголовка */
.hero h1 .line { display: block; overflow: hidden; }
.hero h1 .line-inner {
  display: inline-block;
  transform: translateY(115%);
  animation: line-up .75s cubic-bezier(.22, .61, .21, 1) forwards;
}
.hero h1 .line:nth-child(1) .line-inner { animation-delay: .1s; }
.hero h1 .line:nth-child(2) .line-inner { animation-delay: .22s; }
.hero h1 .line:nth-child(3) .line-inner { animation-delay: .34s; }
@keyframes line-up { to { transform: translateY(0); } }

.hero-sub, .hero-actions {
  opacity: 0;
  animation: fade-up .7s ease forwards;
}
.hero-sub { animation-delay: .55s; }
.hero-actions { animation-delay: .68s; }
@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

.caret {
  display: inline-block;
  width: .14em;
  height: .82em;
  margin-left: .12em;
  background: var(--accent);
  vertical-align: baseline;
  transform: translateY(.1em);
  animation: blink 1.1s steps(2, start) infinite;
}
@keyframes blink { to { visibility: hidden; } }

.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--muted);
  max-width: 520px;
  margin-bottom: 44px;
}

.hero-actions {
  display: flex;
  gap: 26px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: clamp(48px, 8vh, 96px);
}

/* Бегущая строка */
.ticker {
  border-block: 1px solid var(--line);
  overflow: hidden;
  padding: 14px 0;
}
.ticker-track {
  display: flex;
  width: max-content;
  white-space: nowrap;
  font: 400 .8rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--muted);
  animation: ticker 36s linear infinite;
}
@keyframes ticker { to { transform: translateX(-50%); } }

/* ============ Services index ============ */
.service-index { border-bottom: 1px solid var(--line); }
.service-row {
  display: grid;
  grid-template-columns: 84px 1.1fr 1.5fr 48px;
  grid-template-areas: "num title desc arrow";
  align-items: center;
  gap: 10px 24px;
  padding: 30px 0;
  border-top: 1px solid var(--line);
  transition: background-color .2s ease;
}
.service-row:hover { background: rgba(242, 241, 236, .025); }
.service-num {
  grid-area: num;
  font: 400 .85rem var(--font-mono);
  color: var(--muted);
  transition: color .2s ease;
}
.service-row:hover .service-num { color: var(--accent); }
.service-row h3 {
  grid-area: title;
  font-size: clamp(1.05rem, 1.8vw, 1.45rem);
  font-weight: 500;
  margin: 0;
}
.service-row p {
  grid-area: desc;
  color: var(--muted);
  font-size: .95rem;
  margin: 0;
}
.service-arrow {
  grid-area: arrow;
  justify-self: end;
  font-size: 1.3rem;
  color: var(--muted);
  transition: transform .2s ease, color .2s ease;
}
.service-row:hover .service-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

/* ============ Why list ============ */
.why-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 780px;
  border-bottom: 1px solid var(--line);
}
.why-list li {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
}
.plus {
  font: 400 1rem var(--font-mono);
  color: var(--accent);
  flex: 0 0 auto;
}

/* ============ Process steps ============ */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.step {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.step-num {
  display: block;
  font: 400 .85rem var(--font-mono);
  color: var(--accent);
  margin-bottom: 14px;
}
.step h3 {
  font-size: 1.02rem;
  font-weight: 500;
  margin-bottom: 8px;
}
.step p { color: var(--muted); font-size: .93rem; margin: 0; }

/* ============ FAQ ============ */
.faq { max-width: 780px; border-bottom: 1px solid var(--line); }
.faq details { border-top: 1px solid var(--line); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 44px 22px 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.02rem;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq-mark {
  position: absolute;
  right: 4px;
  top: 50%;
  width: 14px;
  height: 14px;
  translate: 0 -50%;
  transition: transform .25s ease;
}
.faq-mark::before, .faq-mark::after {
  content: '';
  position: absolute;
  background: var(--muted);
  transition: background-color .2s ease;
}
.faq-mark::before { inset: 6px 0; }
.faq-mark::after { inset: 0 6px; }
details[open] .faq-mark { transform: rotate(45deg); }
details[open] .faq-mark::before, details[open] .faq-mark::after { background: var(--accent); }
.faq details p { color: var(--muted); padding: 0 0 22px; margin: 0; max-width: 640px; }

/* ============ Lead form ============ */
.section-contact { border-bottom: 1px solid var(--line-soft); }
.lead-form {
  max-width: 780px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px 40px;
}
.field { display: grid; gap: 10px; }
.field-wide { grid-column: 1 / -1; }
.field label {
  font: 400 .72rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
}
.field .opt { text-transform: none; letter-spacing: 0; opacity: .8; }
.field input,
.field textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  padding: 10px 2px 14px;
  color: var(--text);
  font: 400 1.05rem 'Inter', sans-serif;
  transition: border-color .2s ease;
  resize: vertical;
}
.field input::placeholder,
.field textarea::placeholder { color: rgba(143, 143, 137, .5); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
}
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.consent {
  grid-column: 1 / -1;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: .9rem;
  color: var(--muted);
  cursor: pointer;
}
.consent input {
  margin-top: 3px;
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}
.consent a { text-decoration: underline; text-underline-offset: 3px; }
.consent a:hover { color: var(--text); }
.btn-submit { justify-self: start; }
#form-status {
  grid-column: 1 / -1;
  min-height: 1.4em;
  margin: -10px 0 0;
  font: 400 .85rem var(--font-mono);
}
#form-status.ok { color: var(--accent); }
#form-status.error { color: #FF6B57; }
#form-status a { text-decoration: underline; text-underline-offset: 3px; }

/* ============ Legal page ============ */
.legal h1 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 700; text-transform: uppercase; }
.legal-date { font: 400 .78rem var(--font-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 3em; }
.legal h2 { font-size: 1.15rem; margin: 2em 0 .5em; }
.legal p { color: var(--muted); max-width: 640px; }
.legal .btn-line { margin-top: 28px; color: var(--text); }

/* ============ Footer ============ */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 44px 0 30px;
  color: var(--muted);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-brand .logo { color: var(--text); }
.footer-brand p { margin: 8px 0 0; font-size: .92rem; }
.footer-links { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-links a {
  font: 400 .78rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .1em;
  transition: color .2s ease;
}
.footer-links a:hover { color: var(--accent); }
.footer-copy {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  font: 400 .78rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .1em;
}

/* ============ Reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* Каскадное появление строк внутри секций */
.reveal .service-row,
.reveal .why-list li,
.reveal .step {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.visible .service-row,
.reveal.visible .why-list li,
.reveal.visible .step {
  opacity: 1;
  transform: none;
}
.reveal.visible .service-row:nth-child(1) { transition-delay: .05s; }
.reveal.visible .service-row:nth-child(2) { transition-delay: .13s; }
.reveal.visible .service-row:nth-child(3) { transition-delay: .21s; }
.reveal.visible .service-row:nth-child(4) { transition-delay: .29s; }
.reveal.visible .service-row:nth-child(5) { transition-delay: .37s; }
.reveal.visible .service-row:nth-child(6) { transition-delay: .45s; }
.reveal.visible .why-list li:nth-child(1) { transition-delay: .05s; }
.reveal.visible .why-list li:nth-child(2) { transition-delay: .12s; }
.reveal.visible .why-list li:nth-child(3) { transition-delay: .19s; }
.reveal.visible .why-list li:nth-child(4) { transition-delay: .26s; }
.reveal.visible .why-list li:nth-child(5) { transition-delay: .33s; }
.reveal.visible .step:nth-child(1) { transition-delay: .05s; }
.reveal.visible .step:nth-child(2) { transition-delay: .15s; }
.reveal.visible .step:nth-child(3) { transition-delay: .25s; }
.reveal.visible .step:nth-child(4) { transition-delay: .35s; }

/* ============ Responsive ============ */
@media (max-width: 1023px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
  .service-row {
    grid-template-columns: 52px 1fr 40px;
    grid-template-areas:
      "num title arrow"
      "num desc  arrow";
    align-items: baseline;
  }
}

@media (max-width: 767px) {
  .burger { display: flex; }
  .site-header { background: rgba(10, 10, 11, .94); }
  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px 24px 22px;
    background: rgba(10, 10, 11, .97);
    border-bottom: 1px solid var(--line);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .22s ease, transform .22s ease, visibility .22s;
  }
  .site-nav.open { opacity: 1; visibility: visible; transform: none; }
  .site-nav a { padding: 12px 0; }
  .site-nav .nav-cta { margin-top: 12px; text-align: center; }
  .lead-form { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 639px) {
  .steps { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-solid { justify-content: center; }
  .btn-line { justify-content: center; border-bottom: 0; border: 1px solid var(--line); padding: 15px 22px; border-radius: 2px; }
  .service-row { gap: 6px 16px; padding: 24px 0; }
}

/* ============ Reduced motion ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .caret { animation: none !important; }
  .ticker-track { animation: none !important; }
  .hero h1 .line-inner { transform: none; }
  .hero-sub, .hero-actions { opacity: 1; }
  .reveal .service-row,
  .reveal .why-list li,
  .reveal .step { opacity: 1; transform: none; }
}