/* СмартМетод — лендинг. Отдельно от site.css (он общий для входа/оферты).
   Принцип: лист документа — прямые углы, линейки, чёрное/белое, один сигнальный цвет. */
:root {
  --ink: #0a0a0a;
  --paper: #ffffff;
  --muted: #5f5f5f;
  --text-2: #333333;
  --rule: #0a0a0a;
  --rule-soft: #d4d4d4;
  --acc: #ff4f00;
  --d-rule: #2e2e2e;
  --d-muted: #9a9a9a;
  --p: 40px;
  --sans: "IBM Plex Sans", -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --cond: "IBM Plex Sans Condensed", "Arial Narrow", var(--sans);
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; border-radius: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.55 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
p { margin: 0; }
h1, h2, h3 { margin: 0; }
h1, h2 { font-family: var(--cond); text-transform: uppercase; font-weight: 700; }
h1 { font-size: clamp(42px, 7.4vw, 108px); line-height: .94; letter-spacing: -0.01em; }
h2 { font-size: clamp(30px, 4vw, 52px); line-height: 1; font-weight: 600; max-width: 24ch; }
h3 { font-size: 19px; line-height: 1.3; font-weight: 600; }
.mono { font-family: var(--mono); font-size: .82em; }
.hot { color: var(--acc); }

.sheet { max-width: 1360px; margin: 0 auto; border-left: 1px solid var(--rule); border-right: 1px solid var(--rule); }
section { border-top: 1px solid var(--rule); }

/* Шапка */
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: stretch; height: 64px; background: var(--paper); border-bottom: 1px solid var(--rule); }
.brand { display: flex; align-items: center; gap: 12px; padding: 0 var(--p); text-decoration: none; border-right: 1px solid var(--rule); }
.brand .mark { width: 28px; height: 28px; display: block; }
.brand .word { font: 700 21px/1 var(--cond); text-transform: uppercase; letter-spacing: .02em; }
.brand .word em { font-style: normal; font-weight: 500; }
.top nav { display: flex; align-items: stretch; margin-left: auto; }
.top nav a { display: flex; align-items: center; padding: 0 20px; font-size: 15px; text-decoration: none; border-left: 1px solid var(--rule-soft); }
.top nav a:hover { background: var(--ink); color: var(--paper); }
.top-cta { display: flex; align-items: center; padding: 0 28px; background: var(--ink); color: var(--paper); text-decoration: none; font-weight: 500; font-size: 15px; }
.top-cta:hover { background: var(--acc); color: var(--ink); }

/* Кнопки */
.btn { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 18px 22px; background: var(--ink); color: var(--paper); border: 1px solid var(--ink); font: 500 16px/1.25 var(--sans); text-decoration: none; }
.btn::after { content: "→"; font-family: var(--mono); }
.btn:hover { background: var(--acc); border-color: var(--acc); color: var(--ink); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn.inv { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn.inv:hover { background: var(--acc); border-color: var(--acc); }

/* Заголовок секции: номер слева, заголовок справа */
.sh { display: grid; grid-template-columns: 3fr 9fr; gap: 0 var(--p); padding: var(--p); }
.sh-n { font: 500 12px/1.6 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); padding-top: 8px; }
.sh-n span { display: inline-block; min-width: 36px; color: var(--acc); }
.sub { color: var(--muted); max-width: 62ch; margin-top: 20px; }

/* Первый экран */
.hero { border-top: 0; }
.what { padding: 48px var(--p) 0; font-size: 20px; font-weight: 500; max-width: 44ch; box-sizing: content-box; }
.what::before { content: ""; display: block; width: 48px; height: 4px; background: var(--acc); margin-bottom: 20px; }
.hero h1 { padding: 20px var(--p) 56px; max-width: 14ch; box-sizing: content-box; }
.hero-row { display: grid; grid-template-columns: 7fr 5fr; border-top: 1px solid var(--rule); }
.lead { padding: var(--p); font-size: 19px; line-height: 1.55; border-right: 1px solid var(--rule); }
.hero-cta { padding: var(--p); display: flex; flex-direction: column; gap: 12px; justify-content: center; }

/* Демо */
.demo { font-size: 14px; }
.demo-head { display: flex; align-items: stretch; background: var(--ink); color: var(--paper); font: 500 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.demo-head > span:first-child { padding: 14px var(--p); flex: 1; display: flex; align-items: center; }
.clock { display: flex; align-items: center; padding: 0 24px; color: var(--acc); font-size: 18px; letter-spacing: .04em; border-left: 1px solid var(--d-rule); }
.demo-run { font: 500 13px var(--mono); text-transform: uppercase; letter-spacing: .06em; padding: 0 24px; background: var(--acc); color: var(--ink); border: 0; cursor: pointer; }
.demo-run:hover { background: var(--paper); }
.stages { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); border-bottom: 1px solid var(--rule); }
.stages li { position: relative; padding: 14px 16px 12px; font-weight: 600; font-size: 14px; color: var(--muted); transition: color .2s, background .2s; }
.stages li + li { border-left: 1px solid var(--rule-soft); }
.stages li span { display: block; font: 500 11px var(--mono); color: var(--muted); margin-bottom: 2px; }
.stages li::after { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: transparent; transition: background .2s; }
.demo[data-step="5"] .stages li, .stages li.done { color: var(--ink); }
.demo[data-step="5"] .stages li::after, .stages li.done::after { background: var(--ink); }
.stages li.now { color: var(--paper); background: var(--ink); }
.stages li.now span { color: var(--acc); }
.stages li.now::after { background: var(--acc); }
.caption { padding: 14px var(--p); min-height: 52px; font-size: 16px; font-weight: 500; border-bottom: 1px solid var(--rule); }
.caption::before { content: "→ "; font-family: var(--mono); color: var(--acc); }

.ex-body { display: grid; grid-template-columns: 3fr 6fr 3fr; }
.ex-col { padding: 20px 24px 24px; min-width: 0; }
.ex-col + .ex-col { border-left: 1px solid var(--rule); }
.ex-h { display: flex; gap: 10px; align-items: baseline; font: 600 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; padding-bottom: 12px; border-bottom: 1px solid var(--rule); }
.ex-h em { margin-left: auto; font-style: normal; color: var(--acc); font-size: 12px; }
.mail { padding: 12px 0 12px 12px; border-bottom: 1px solid var(--rule-soft); border-left: 3px solid transparent; }
.mail.on { border-left-color: var(--acc); }
.mail div { display: flex; justify-content: space-between; gap: 8px; }
.mail b { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mail div .mono { color: var(--muted); }
.mail p { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text-2); }
.mail p.mono { color: var(--muted); }
.ex-match table { width: 100%; border-collapse: collapse; }
.ex-match th { text-align: left; font: 500 11px var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding: 12px 10px 8px 0; border-bottom: 1px solid var(--rule-soft); }
.ex-match td { padding: 9px 10px 9px 0; border-bottom: 1px solid var(--rule-soft); vertical-align: top; height: 52px; }
.ex-match td:first-child { color: var(--muted); }
.ex-match td i { display: block; font-style: normal; color: var(--muted); font-size: 11px; }
.ex-match .r { text-align: right; white-space: nowrap; }
.ex-match .more { color: var(--muted); padding-top: 10px; }
.st { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; font: 500 11px var(--mono); text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
.st::before { content: ""; width: 8px; height: 8px; background: var(--ink); }
.st.an::before { background: transparent; box-shadow: inset 0 0 0 1px var(--ink); }
.st.chk { color: var(--acc); }
.st.chk::before { background: var(--acc); }
.doc-t { font-weight: 600; padding: 12px 0; border-bottom: 1px solid var(--rule-soft); }
.doc-t .mono { font-weight: 400; color: var(--muted); }
.ex-doc dl { display: grid; grid-template-columns: auto 1fr; margin: 0; }
.ex-doc dt, .ex-doc dd { padding: 8px 0; border-bottom: 1px solid var(--rule-soft); }
.ex-doc dt { color: var(--muted); }
.ex-doc dd { margin: 0; text-align: right; }
.sent { margin-top: 16px; padding: 12px 14px; background: var(--ink); color: var(--paper); }
.sent b { font-weight: 600; }
.sent .mono { color: var(--d-muted); }

/* Появление шагов демо */
.demo [data-s] { transition: opacity .35s, transform .35s; }
.demo [data-s].off { opacity: 0; transform: translateY(4px); }
.demo td[data-s].off { transform: none; }
.demo .mail[data-s].off { opacity: .08; }

/* Сравнение времени */
.cmp { border-top: 1px solid var(--rule); padding: 20px var(--p) 24px; display: grid; gap: 10px; }
.cmp-row { display: grid; grid-template-columns: 120px 1fr 80px; gap: 16px; align-items: center; }
.cmp-row span { font-weight: 500; }
.cmp-row b { font-size: 16px; text-align: right; }
.bar { height: 14px; background: #f0f0f0; }
.bar i { display: block; height: 100%; }
.bar .man { width: 100%; background: var(--ink); }
.bar .ours { width: 1.2%; min-width: 6px; background: var(--acc); }
.demo .bar .ours[data-s].off { opacity: 0; transform: none; }
.cmp-note { color: var(--muted); }

/* Выгоды */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule); }
.grid3 > div { padding: 32px var(--p) 40px; border-bottom: 1px solid var(--rule-soft); }
.grid3 > div:nth-last-child(-n+3) { border-bottom: 0; }
.grid3 > div:not(:nth-child(3n+1)) { border-left: 1px solid var(--rule-soft); }
.grid3 .k { display: block; font: 500 12px var(--mono); color: var(--acc); margin-bottom: 20px; }
.grid3 h3 { font: 700 26px/1.02 var(--cond); text-transform: uppercase; margin-bottom: 12px; max-width: 16ch; }
.grid3 p { color: var(--text-2); font-size: 16px; }

/* Калькулятор */
.calc { display: grid; grid-template-columns: 6fr 6fr; border-top: 1px solid var(--rule); }
.calc-in { padding: 8px var(--p) var(--p); }
.calc label { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 14px 0; border-bottom: 1px solid var(--rule-soft); }
.calc input { width: 150px; flex: none; font: 500 16px var(--mono); text-align: right; color: var(--ink); background: var(--paper); border: 1px solid var(--ink); padding: 9px 10px; }
.calc input:focus { outline: 0; box-shadow: inset 0 0 0 1px var(--acc); border-color: var(--acc); }
.calc-note { margin-top: 14px; color: var(--muted); }
.calc-out { background: var(--ink); color: var(--paper); display: grid; grid-template-columns: 1fr 1fr; }
.calc-out > div { padding: 28px var(--p); display: flex; flex-direction: column; justify-content: flex-end; min-height: 150px; }
.calc-out > div:nth-child(even) { border-left: 1px solid var(--d-rule); }
.calc-out > div:nth-child(n+3) { border-top: 1px solid var(--d-rule); }
.calc-out span { font: 500 12px var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--d-muted); margin-bottom: 10px; }
.calc-out b { font: 700 clamp(32px, 3.6vw, 52px)/1 var(--cond); }

/* Интеграции */
.tbl-wrap { overflow-x: auto; padding: 0 var(--p); }
.tbl { width: 100%; min-width: 560px; border-collapse: collapse; }
.tbl th { text-align: left; font: 500 12px var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 12px 24px 12px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.tbl td { padding: 22px 24px 22px 0; border-bottom: 1px solid var(--rule-soft); vertical-align: top; color: var(--text-2); }
.tbl td:first-child { width: 32%; color: var(--ink); }
.tbl td b { display: block; font: 700 22px/1.1 var(--cond); text-transform: uppercase; }
.tbl td .mono { display: block; margin-top: 6px; color: var(--muted); }
.note { padding: 20px var(--p) var(--p); color: var(--muted); font-size: 15px; }

/* Пилот */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rule); }
.steps li { padding: var(--p) 28px; display: flex; flex-direction: column; }
.steps li:first-child { padding-left: var(--p); }
.steps li + li { border-left: 1px solid var(--rule-soft); }
.steps .when { color: var(--acc); margin-bottom: 18px; }
.steps h3 { font: 700 26px/1 var(--cond); text-transform: uppercase; margin-bottom: 12px; }
.steps p { color: var(--text-2); font-size: 15px; margin-bottom: 28px; }
.steps .price { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--rule); font: 600 24px/1.1 var(--cond); text-transform: uppercase; }
.steps .price small { display: block; margin-top: 6px; font: 400 12px var(--mono); text-transform: none; color: var(--muted); }

/* FAQ */
.faq details { border-top: 1px solid var(--rule-soft); }
.faq details:first-child { border-top-color: var(--rule); }
.faq details:last-child { border-bottom: 1px solid var(--rule); }
.faq summary { list-style: none; cursor: pointer; padding: 20px 48px 20px 0; font-weight: 500; font-size: 18px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 16px; font: 400 24px var(--mono); }
.faq details[open] summary::after { content: "−"; color: var(--acc); }
.faq summary:hover { color: var(--acc); }
.faq details p { padding: 0 48px 22px 0; color: var(--text-2); max-width: 70ch; }
.faq a { text-decoration-color: var(--acc); text-underline-offset: 3px; }

/* Тёмная секция и контакт */
.dark { background: var(--ink); color: var(--paper); }
.dark .sh-n, .dark .sub { color: var(--d-muted); }
.contact { display: grid; grid-template-columns: 3fr 9fr; gap: 0 var(--p); padding: 0 var(--p) var(--p); }
.contact > p { grid-column: 2; color: #cfcfcf; max-width: 60ch; margin-bottom: 32px; }
.contact-act { grid-column: 2; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--p); align-items: start; }
.contact dl { display: grid; grid-template-columns: auto 1fr; margin: 0; border-top: 1px solid var(--d-rule); }
.contact dt, .contact dd { padding: 12px 0; border-bottom: 1px solid var(--d-rule); }
.contact dt { font: 500 12px/1.9 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--d-muted); padding-right: 24px; }
.contact dd { margin: 0; }
.contact dd a { text-decoration: none; }
.contact dd a:hover { color: var(--acc); }

/* Подвал */
.foot { display: flex; flex-wrap: wrap; gap: 8px 24px; padding: 20px var(--p); background: var(--ink); color: var(--d-muted); border-top: 1px solid var(--d-rule); font-size: 13px; }
.foot .spacer { flex: 1; }

/* Адаптив */
@media (max-width: 1100px) {
  .ex-body { grid-template-columns: 7fr 5fr; }
  .ex-in { display: none; }
  .ex-col + .ex-col { border-left: 0; }
  .ex-doc { border-left: 1px solid var(--rule) !important; }
  .grid3 { grid-template-columns: 1fr 1fr; }
  .grid3 > div { border-left: 0 !important; border-bottom: 1px solid var(--rule-soft) !important; }
  .grid3 > div:nth-child(even) { border-left: 1px solid var(--rule-soft) !important; }
  .grid3 > div:nth-last-child(-n+2) { border-bottom: 0 !important; }
  .calc { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .steps li { padding: var(--p); }
  .steps li:nth-child(3) { border-left: 0; }
  .steps li:nth-child(n+3) { border-top: 1px solid var(--rule-soft); }
  .top nav a { padding: 0 14px; }
}
@media (max-width: 860px) {
  :root { --p: 16px; }
  body { font-size: 16px; }
  .sheet { border: 0; }
  .brand { padding: 0 16px; border-right: 0; }
  .top nav .hide-m { display: none; }
  .top-cta { padding: 0 16px; }
  .what { font-size: 17px; padding-top: 32px; }
  .hero h1 { padding: 16px 16px 36px; }
  .hero-row { grid-template-columns: 1fr; }
  .lead { border-right: 0; border-bottom: 1px solid var(--rule); font-size: 17px; padding: 24px 16px; }
  .hero-cta { padding: 24px 16px; }
  .demo-head > span:first-child { padding: 12px 16px; }
  .clock { padding: 0 12px; font-size: 15px; }
  .demo-run { padding: 0 14px; }
  .stages { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .stages li { padding: 10px 6px 8px; font-size: 0; text-align: center; }
  .stages li span { font-size: 12px; margin: 0; }
  .caption { font-size: 15px; min-height: 72px; }
  .ex-body { grid-template-columns: 1fr; }
  .ex-col { padding: 16px; }
  .ex-doc { border-left: 0 !important; border-top: 1px solid var(--rule); }
  .ex-match th:nth-child(1), .ex-match td:nth-child(1) { display: none; }
  .cmp-row { grid-template-columns: 88px 1fr 56px; gap: 10px; }
  .sh { grid-template-columns: 1fr; padding: 40px 16px 28px; }
  .sh-n { margin-bottom: 16px; padding-top: 0; }
  .grid3 { grid-template-columns: 1fr; }
  .grid3 > div, .grid3 > div:nth-child(even) { border-left: 0 !important; border-bottom: 1px solid var(--rule-soft) !important; padding: 28px 16px; }
  .grid3 > div:last-child { border-bottom: 0 !important; }
  .calc-in { padding: 4px 16px 24px; }
  .calc label { font-size: 15px; gap: 12px; }
  .calc input { width: 110px; }
  .calc-out > div { padding: 20px 16px; min-height: 110px; }
  .tbl-wrap { padding: 0 16px; }
  .steps { grid-template-columns: 1fr; }
  .steps li, .steps li:first-child { padding: 28px 16px; border-left: 0; }
  .steps li + li { border-top: 1px solid var(--rule-soft); }
  .contact { grid-template-columns: 1fr; padding: 0 16px 40px; }
  .contact > p, .contact-act { grid-column: 1; }
  .contact-act { grid-template-columns: 1fr; gap: 28px; }
  .foot { padding: 20px 16px; }
}
@media (max-width: 480px) {
  .top nav .hide-s { display: none; }
  .brand .word { font-size: 18px; }
  .demo-head > span:first-child { display: none; }
  .clock { flex: 1; border-left: 0; }
}