/* ---------- Tokens ---------- */
:root{
  --bg:        #FFFFFF;
  --bg-soft:   #FAFAF9;     /* warm stone-50 (не холодный Apple-серый) */
  --bg-deep:   #0A0A0A;     /* почти-чёрный, не чистый #000 */
  --ink:       #171717;     /* neutral-900 (тёплая нейтраль вместо Apple #1D1D1F с холодным оттенком) */
  --ink-2:     #404040;     /* neutral-700 */
  --ink-3:     #737373;     /* neutral-500 */
  --line:      #E5E5E5;     /* neutral-200 */
  --line-2:    #D4D4D4;     /* neutral-300 */
  --accent:    #4338CA;     /* deep indigo-700 — не Apple-blue, не корпоративный голубой */
  --accent-2:  #3730A3;     /* indigo-800, hover */
  --accent-on-dark: #818CF8; /* indigo-400 для тёмных фонов */
  --on-ink:    #FFFFFF;

  --maxw:   1180px;
  --pad-y:  clamp(96px, 12vw, 160px);
  --radius: 12px;
  --pill:   980px;

  --sans:  -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono:  ui-monospace, "SF Mono", "Menlo", "Monaco", "Cascadia Mono", Consolas, monospace;
}

/* ---------- Reset-ish ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.47;
  letter-spacing:-.005em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
img,svg{ display:block; max-width:100%; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; padding:0; }
a{ color:inherit; text-decoration:none; }
ol,ul{ margin:0; padding:0; list-style:none; }
p{ margin:0; }
code{ font-family:var(--mono); font-size:.92em; letter-spacing:0; }
::selection{ background:color-mix(in oklab, var(--accent) 24%, transparent); }

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 clamp(22px, 4vw, 40px);
}
.container--narrow{ max-width:820px; }

.skip{
  position:absolute; left:-9999px; top:auto;
  background:var(--ink); color:var(--on-ink);
  padding:10px 14px; font-size:14px;
  border-radius:8px;
  z-index:100;
}
.skip:focus{ left:16px; top:16px; }

/* ---------- Topbar (floating glass pill) ---------- */
.topbar{
  position:fixed;
  top:14px;
  left:50%;
  transform:translateX(-50%);
  z-index:50;
  width:calc(100% - 28px);
  max-width:var(--maxw);
  background:color-mix(in oklab, #FFFFFF 58%, transparent);
  -webkit-backdrop-filter:saturate(200%) blur(28px);
          backdrop-filter:saturate(200%) blur(28px);
  border:1px solid color-mix(in oklab, #FFFFFF 70%, transparent);
  border-radius:22px;
  box-shadow:
    0 1px 0 color-mix(in oklab, #FFFFFF 60%, transparent) inset,
    0 12px 40px -8px rgba(13, 17, 23, 0.10),
    0 2px 8px -2px rgba(13, 17, 23, 0.06);
}
.topbar__inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:24px; height:54px;
  padding:0 clamp(22px, 4vw, 40px);
}
@media (max-width:520px){
  .topbar{ top:10px; width:calc(100% - 16px); border-radius:18px; }
  .topbar__inner{ height:48px; padding:0 18px; }
}
.brand{ display:inline-flex; align-items:center; gap:9px; font-weight:600; }
.brand__mark{
  display:inline-block;
  width:18px; height:18px;
  border-radius:5px;
  background:var(--ink);
  position:relative;
  transform:translateY(.5px);
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset:5px;
  background:var(--bg);
  border-radius:2px;
}
.brand__word{
  font-size:14px;
  letter-spacing:.04em;
  font-weight:600;
}

.nav{
  display:flex; gap:28px;
  font-size:13px; color:var(--ink);
  font-weight:400;
}
.nav a{ position:relative; transition:opacity .2s ease; opacity:.85; }
.nav a:hover{ opacity:1; }

.lang{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; color:var(--ink-3);
}
.lang button{
  padding:4px 2px; color:var(--ink-3);
  font-weight:500;
  letter-spacing:.04em;
  transition:color .15s ease;
}
.lang button[aria-pressed="true"]{ color:var(--ink); }
.lang button:hover{ color:var(--ink); }

@media (max-width:760px){
  .nav{ display:none; }
}

/* ---------- Type ---------- */
.eyebrow{
  font-size:14px;
  font-weight:500;
  color:var(--accent);
  margin:0 0 22px;
  letter-spacing:-.005em;
}
.eyebrow--neutral{
  color:var(--ink-2);
}
.eyebrow--mark::before{
  content:"";
  display:inline-block;
  width:6px; height:6px; border-radius:50%;
  background:var(--accent);
  margin-right:10px;
  vertical-align:2px;
}

.display{
  font-family:var(--sans);
  font-weight:600;
  font-size:clamp(48px, 8.4vw, 96px);
  line-height:1.05;
  letter-spacing:-.025em;
  margin:0 0 28px;
  color:var(--ink);
}
.display em{
  font-style:normal;
  color:var(--accent);
  font-weight:600;
}

.h2{
  font-family:var(--sans);
  font-weight:600;
  font-size:clamp(34px, 4.2vw, 56px);
  line-height:1.07;
  letter-spacing:-.022em;
  margin:0;
  max-width:22ch;
}
.h2--display{
  font-weight:600;
  font-size:clamp(40px, 6.4vw, 80px);
  line-height:1.04;
  letter-spacing:-.026em;
  max-width:18ch;
}
.h2--display em{ font-style:normal; color:var(--accent); font-weight:600; }
.section--inverse .h2--display em,
.section--inverse .display em{ color:var(--accent-on-dark); }

.lede{
  font-size:clamp(19px, 1.5vw, 22px);
  line-height:1.45;
  max-width:60ch;
  color:var(--ink-2);
  margin:0 0 36px;
  letter-spacing:-.008em;
}

.kicker{
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  margin:0 0 12px;
  letter-spacing:-.005em;
  text-transform:none;
}
.section--inverse .kicker{ color:var(--accent-on-dark); }

/* ---------- Buttons (pill) ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  font-family:var(--sans);
  font-size:15px; font-weight:500;
  padding:12px 24px;
  min-height:44px;
  border-radius:var(--pill);
  border:1px solid transparent;
  letter-spacing:-.005em;
  transition:transform .15s ease, background-color .2s ease, color .2s ease, border-color .2s ease, opacity .2s ease;
  white-space:nowrap;
}
.btn--solid{ background:var(--accent); color:var(--on-ink); border-color:var(--accent); }
.btn--solid:hover{ background:var(--accent-2); border-color:var(--accent-2); }
.btn--solid:active{ transform:scale(.985); }
.btn--ghost{ background:transparent; color:var(--accent); border-color:transparent; }
.btn--ghost::after{
  content:" ›";
  margin-left:4px;
  display:inline-block;
  transition:transform .2s ease;
}
.btn--ghost:hover::after{ transform:translateX(2px); }
.btn--lg{ padding:16px 30px; font-size:17px; margin-top:36px; min-height:50px; }

.cta-row{ display:flex; flex-wrap:wrap; gap:14px; align-items:center; }
.cta-row--centered{ margin-top:52px; }

@media (max-width:520px){
  .btn{ white-space:normal; }
  .cta-row{ flex-direction:column; align-items:stretch; }
  .cta-row .btn{ width:100%; }
  .cta-row .btn--ghost{ justify-content:flex-start; padding-left:8px; padding-right:8px; }
}

.section--inverse .btn--solid{ background:var(--on-ink); color:var(--ink); border-color:var(--on-ink); }
.section--inverse .btn--solid:hover{ background:#E5E5E5; border-color:#E5E5E5; }
.section--inverse .btn--ghost{ color:var(--accent-on-dark); }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:clamp(100px,14vw,180px) 0 clamp(96px,12vw,160px);
  overflow:hidden;
  background:var(--bg);
}
.hero .container{ position:relative; z-index:1; }
.hero__halo{
  position:absolute;
  inset:auto 0 auto 0;
  top:-10%;
  height:120%;
  background:
    radial-gradient(60% 50% at 50% 32%, color-mix(in oklab, var(--accent) 9%, transparent) 0%, transparent 70%);
  pointer-events:none;
  z-index:0;
}

/* ---------- Sections ---------- */
.section{
  padding:var(--pad-y) 0;
  background:var(--bg);
}
.section + .section{ border-top:1px solid var(--line); }
.section--soft{ background:var(--bg-soft); border-top-color:transparent !important; }
.section--inverse{
  background:var(--bg-deep);
  color:var(--on-ink);
  border-top-color:transparent !important;
}
.section--inverse .eyebrow{ color:var(--accent-on-dark); }
.section--inverse .lede,
.section--inverse .prose p{ color:#A3A3A3; }
.section--inverse .flow li{ background:#171717; border-color:#262626; }
.section--inverse .flow__step{ color:var(--accent-on-dark); }
.section--inverse .flow h4{ color:var(--on-ink); }
.section--inverse .flow p{ color:#A3A3A3; }

.section--final{ padding-bottom:clamp(120px,16vw,200px); }

.section__head{
  margin-bottom:clamp(56px,8vw,96px);
  max-width:780px;
}
.section__head--center{
  margin-left:auto; margin-right:auto; text-align:center;
}

/* ---------- Cards (services) ---------- */
.cards{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:20px;
}
.card{
  background:var(--bg);
  padding:clamp(32px,3.6vw,48px);
  display:flex; flex-direction:column; gap:18px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:border-color .2s ease, transform .25s ease;
}
.section--soft .card{ background:var(--bg); }
.card:hover{ border-color:var(--ink-3); }
.card__num{
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  letter-spacing:-.005em;
}
.card__title{
  font-family:var(--sans);
  font-weight:600;
  font-size:clamp(24px,2.4vw,28px);
  line-height:1.15;
  letter-spacing:-.018em;
  margin:0;
}
.card__body{ color:var(--ink-2); font-size:17px; line-height:1.5; }
.card__tags{
  display:flex; flex-wrap:wrap; gap:6px;
  margin-top:auto; padding-top:8px;
}
.card__tags li{
  font-size:12px;
  font-weight:500;
  padding:5px 11px;
  background:var(--bg-soft);
  color:var(--ink-2);
  border-radius:var(--pill);
  letter-spacing:-.002em;
}

@media (max-width:900px){
  .cards{ grid-template-columns:1fr; }
}

/* ---------- Two-column prose ---------- */
.two-col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(40px,5vw,80px);
  margin-bottom:clamp(64px,8vw,112px);
}
.two-col p{
  font-size:clamp(17px,1.4vw,20px);
  line-height:1.5;
  max-width:54ch;
  color:inherit;
}
@media (max-width:760px){ .two-col{ grid-template-columns:1fr; } }

/* ---------- Flow ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:16px;
}
.flow li{
  background:var(--bg);
  padding:clamp(24px,2.6vw,32px);
  display:flex; flex-direction:column; gap:12px;
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.flow__step{
  font-size:13px;
  font-weight:600;
  color:var(--accent);
}
.flow h4{
  font-family:var(--sans);
  font-weight:600;
  font-size:clamp(18px,1.8vw,22px);
  line-height:1.2;
  letter-spacing:-.015em;
  margin:0;
}
.flow p{ color:var(--ink-2); font-size:15px; line-height:1.45; margin:0; }
@media (max-width:900px){ .flow{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .flow{ grid-template-columns:1fr; } }

/* ---------- Steps (process) ---------- */
.steps{
  display:flex; flex-direction:column;
  border-top:1px solid var(--line);
}
.steps li{
  display:grid;
  grid-template-columns:80px 1fr;
  gap:clamp(20px,4vw,60px);
  padding:clamp(32px,4vw,48px) 0;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.steps__num{
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  padding-top:8px;
}
.steps h3{
  font-family:var(--sans);
  font-weight:600;
  font-size:clamp(24px,3vw,34px);
  line-height:1.1;
  letter-spacing:-.022em;
  margin:0 0 8px;
}
.steps p{ color:var(--ink-2); max-width:60ch; font-size:17px; line-height:1.5; }
@media (max-width:640px){
  .steps li{ grid-template-columns:1fr; gap:8px; }
}

/* ---------- Registry ---------- */
.registry{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:16px;
  margin:0;
}
.registry > div{
  background:var(--bg);
  padding:clamp(24px,2.6vw,32px);
  display:flex; flex-direction:column; gap:10px;
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.registry dt{
  font-size:13px;
  font-weight:500;
  color:var(--ink-3);
  letter-spacing:-.005em;
}
.registry dd{
  margin:0;
  font-size:17px;
  font-weight:500;
  color:var(--ink);
  line-height:1.4;
  letter-spacing:-.01em;
}
.registry dd code{ font-size:16px; letter-spacing:.02em; }
@media (max-width:900px){ .registry{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .registry{ grid-template-columns:1fr; } }

/* ---------- Contact ---------- */
.contact{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:14px 32px;
  margin:48px 0 0;
  font-size:18px;
  border-top:1px solid var(--line);
  padding-top:32px;
}
.contact li{ display:contents; }
.contact__label{
  font-size:14px;
  font-weight:500;
  color:var(--ink-3);
  padding-top:4px;
  letter-spacing:-.005em;
}
.contact a{
  color:var(--accent);
  transition:opacity .15s ease;
}
.contact a:hover{ opacity:.7; }

/* ---------- Footer ---------- */
.footer{
  padding:32px 0 48px;
  border-top:1px solid var(--line);
  font-size:12px; color:var(--ink-3);
}
.footer__inner{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
}
.footer__mono code{ font-size:12px; letter-spacing:.02em; }

/* ---------- Reveal animation ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  animation:reveal .8s cubic-bezier(.2,.7,.1,1) forwards;
  animation-delay:.05s;
}
.reveal[data-delay="1"]{ animation-delay:.18s; }
.reveal[data-delay="2"]{ animation-delay:.32s; }
.reveal[data-delay="3"]{ animation-delay:.46s; }
@keyframes reveal{
  to{ opacity:1; transform:none; }
}
@media (prefers-reduced-motion: reduce){
  .reveal{ animation:none; opacity:1; transform:none; }
  html{ scroll-behavior:auto; }
}

/* ---------- Focus visible ---------- */
:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:6px;
}

/* ---------- Print ---------- */
@media print{
  .topbar,.hero__halo,.lang{ display:none; }
  body{ background:#fff; color:#000; }
  .section{ break-inside:avoid; }
}