/* Зерно — лендинг. Палитра бренда: чернила, золото, шалфей, кремовый. */
:root {
  --ink: #151515; --ink-2: #2A2A2A; --cream: #F4F2EC; --sand: #ECE8DE; --paper: #FFFFFF;
  --gold: #B08D57; --gold-soft: #D9C5A0; --sage: #8A9A6B; --sage-deep: #5F6E48; --muted: #6E6B64; --line: #E2DDD2;
  --serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sans: Manrope, "Segoe UI", system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(.2,.8,.2,1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--cream); color: var(--ink); font: 16px/1.65 var(--sans); -webkit-font-smoothing: antialiased; }
img { display: block; }
a { color: inherit; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: #fff; padding: 8px 12px; z-index: 100; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.wrap--narrow { max-width: 820px; }
.eyebrow { font-size: 12px; letter-spacing: .24em; text-transform: uppercase; color: var(--gold); margin: 0 0 18px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; letter-spacing: .005em; margin: 0; }
h2 { font-size: clamp(32px, 4.2vw, 52px); line-height: 1.08; margin-bottom: 28px; max-width: 18ch; }
h3 { font-size: 24px; line-height: 1.2; margin-bottom: 10px; }
.lead { font-size: clamp(17px, 1.4vw, 20px); color: var(--ink-2); max-width: 54ch; margin: 0 0 36px; }
.lead-sm { color: var(--muted); max-width: 60ch; margin: -8px 0 36px; }
p { margin: 0 0 14px; }

/* кнопки */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 26px; border-radius: 999px; font-size: 14px; letter-spacing: .06em;
       text-transform: uppercase; text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .25s var(--ease), background .25s, color .25s, border-color .25s, box-shadow .25s; font-family: var(--sans); }
.btn:hover { transform: translateY(-2px); }
.btn--solid { background: var(--ink); color: #fff; }
.btn--solid:hover { background: #000; box-shadow: 0 14px 30px -18px rgba(0,0,0,.6); }
.btn--line { border-color: rgba(21,21,21,.35); color: var(--ink); background: transparent; padding: 11px 20px; }
.btn--line:hover { border-color: var(--ink); }
.btn--ghost { color: var(--ink); padding-left: 6px; }
.btn--ghost span { transition: transform .25s var(--ease); }
.btn--ghost:hover span { transform: translateX(4px); }
.section--dark .btn--line { border-color: rgba(255,255,255,.35); color: #fff; }

/* шапка */
.nav { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 32px; padding: 14px 36px;
       background: rgba(244,242,236,.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid transparent; transition: border-color .3s; }
.nav.is-scrolled { border-bottom-color: var(--line); }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-family: var(--serif); font-size: 22px; letter-spacing: .22em; text-transform: uppercase; }
.menu { display: flex; gap: 26px; margin-left: auto; }
.menu a { text-decoration: none; font-size: 14px; letter-spacing: .04em; color: var(--ink-2); position: relative; padding: 4px 0; }
.menu a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px; background: var(--gold); transition: right .3s var(--ease); }
.menu a:hover::after { right: 0; }
.burger { display: none; width: 40px; height: 40px; border: 0; background: none; cursor: pointer; flex-direction: column; gap: 6px; align-items: center; justify-content: center; }
.burger span { width: 22px; height: 1.5px; background: var(--ink); transition: transform .3s, opacity .3s; }
.nav.is-open .burger span:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav.is-open .burger span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* hero */
.hero { position: relative; min-height: calc(100vh - 68px); display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; overflow: hidden; padding: 60px 36px 80px; max-width: 1280px; margin: 0 auto; }
.hero h1 { font-size: clamp(42px, 6.2vw, 84px); line-height: 1.02; margin-bottom: 28px; }
.hero h1 em { font-style: italic; color: var(--sage-deep); }
.hero__cta { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.hero__note { margin-top: 34px; font-size: 14px; color: var(--muted); padding-left: 18px; border-left: 2px solid var(--gold); }
.hero__art { position: relative; display: grid; place-items: center; }
.hero__logo { width: min(420px, 80%); filter: drop-shadow(0 30px 50px rgba(21,21,21,.12)); animation: float 9s ease-in-out infinite; }
.hero__orbit { position: absolute; width: min(560px, 110%); aspect-ratio: 1; border-radius: 50%; border: 1px solid rgba(176,141,87,.25); animation: spin 60s linear infinite; }
.hero__orbit::before { content: ""; position: absolute; top: -4px; left: 50%; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); }
@keyframes float { 0%,100% { transform: translateY(0) } 50% { transform: translateY(-10px) } }
@keyframes spin { to { transform: rotate(360deg) } }
.hero__scroll { position: absolute; left: 36px; bottom: 28px; width: 1px; height: 56px; background: var(--line); overflow: hidden; }
.hero__scroll span { display: block; width: 100%; height: 50%; background: var(--gold); animation: drop 2.2s var(--ease) infinite; }
@keyframes drop { from { transform: translateY(-100%) } to { transform: translateY(200%) } }

/* цифры */
.numbers { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); }
.numbers .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
.num { padding: 40px 28px 40px 0; border-right: 1px solid var(--line); }
.num:last-child { border-right: 0; }
.num + .num { padding-left: 28px; }
.num b { font: 500 56px/1 var(--serif); }
.num i { font: 500 28px/1 var(--serif); color: var(--gold); font-style: normal; margin-left: 4px; }
.num p { margin: 12px 0 0; font-size: 14px; color: var(--muted); max-width: 26ch; }

/* секции */
.section { padding: 110px 0; }
.section--dark { background: var(--ink); color: #F4F2EC; }
.section--dark .eyebrow { color: var(--gold-soft); }
.section--dark p { color: #CFCAC0; }
.section--sand { background: var(--sand); }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 16px; }
.grid3--tight { gap: 16px; }
.card { position: relative; background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 34px 30px 30px; transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s; }
.card:hover { transform: translateY(-6px); box-shadow: 0 30px 50px -36px rgba(21,21,21,.45); border-color: var(--gold-soft); }
.card__n { display: block; font: 500 13px/1 var(--sans); letter-spacing: .2em; color: var(--gold); margin-bottom: 26px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.mini { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1); border-radius: 14px; padding: 28px; }
.mini b { display: block; font: 500 24px/1.2 var(--serif); margin-bottom: 10px; }
.mini p { margin: 0; font-size: 15px; }

/* split */
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: start; }
.split--rev { grid-template-columns: .9fr 1.1fr; }
.split--rev .split__text { order: 2; }
.pillars { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.pillars li { padding: 24px 26px; border: 1px solid rgba(255,255,255,.12); border-radius: 14px; background: rgba(255,255,255,.03); }
.pillars b { display: block; font: 500 22px/1.2 var(--serif); margin-bottom: 6px; }
.pillars span { color: #CFCAC0; font-size: 15px; }
.facts { display: grid; gap: 14px; }
.facts div { padding: 22px 24px; background: var(--paper); border: 1px solid var(--line); border-radius: 14px; }
.facts b { display: block; font: 500 22px/1.2 var(--serif); margin-bottom: 4px; }
.facts span { color: var(--muted); font-size: 15px; }

/* сравнение */
.compare { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: var(--paper); }
.compare__head, .compare__row { display: grid; grid-template-columns: 1fr 1fr; }
.compare__head span { padding: 16px 26px; font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--line); }
.compare__head span:last-child { color: var(--sage-deep); }
.compare__row span { padding: 20px 26px; border-bottom: 1px solid var(--line); font-size: 15px; }
.compare__row span:first-child { color: var(--muted); border-right: 1px solid var(--line); }
.compare__row span:last-child { position: relative; padding-left: 46px; }
.compare__row span:last-child::before { content: ""; position: absolute; left: 24px; top: 29px; width: 10px; height: 10px; border-radius: 50%; background: var(--sage); }
.compare__row:last-child span { border-bottom: 0; }

/* шаги */
.steps { list-style: none; margin: 16px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; counter-reset: s; }
.steps li { position: relative; padding: 26px 0 0; border-top: 1px solid rgba(21,21,21,.25); }
.steps li::before { content: ""; position: absolute; top: -1px; left: 0; width: 0; height: 1px; background: var(--gold); transition: width 1.2s var(--ease) .2s; }
.steps li.is-in::before { width: 100%; }
.steps span { font-size: 12px; letter-spacing: .2em; color: var(--gold); }
.steps h3 { font-size: 24px; margin: 10px 0 8px; }
.steps p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* faq */
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 22px 48px 22px 0; font: 500 24px/1.25 var(--serif); position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font: 300 30px/1 var(--serif); color: var(--gold); transition: transform .3s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: 0 0 24px; color: var(--ink-2); max-width: 70ch; }

/* контакты */
.contact { background: var(--paper); border-top: 1px solid var(--line); }
.contacts { display: grid; gap: 10px; margin-top: 10px; }
.contacts a { text-decoration: none; font-size: 15px; width: max-content; border-bottom: 1px solid var(--gold-soft); padding-bottom: 2px; transition: border-color .25s; }
.contacts a:hover { border-color: var(--ink); }
.form { background: var(--cream); border: 1px solid var(--line); border-radius: 18px; padding: 32px; }
.form label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 16px; letter-spacing: .02em; }
.form input[type=text], .form select, .form textarea { display: block; width: 100%; margin-top: 6px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: #fff; font: 15px/1.4 var(--sans); color: var(--ink); transition: border-color .25s, box-shadow .25s; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 4px rgba(176,141,87,.14); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.check { display: flex !important; gap: 10px; align-items: flex-start; font-size: 13px; }
.check input { margin-top: 3px; accent-color: var(--ink); }
.hp { position: absolute; left: -9999px; }
.form .btn { width: 100%; justify-content: center; margin-top: 4px; }
.form__status { margin: 14px 0 0; font-size: 14px; color: var(--sage-deep); min-height: 1.2em; }
.form__status.is-error { color: #9B2C2C; }

/* подвал */
.footer { padding: 44px 0 56px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.footer__inner { display: grid; grid-template-columns: auto 1fr auto; gap: 32px; align-items: start; }
.footer__brand { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-size: 18px; letter-spacing: .2em; text-transform: uppercase; color: var(--ink); }
.footer__links a { color: var(--muted); }

/* появление */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.d1 { transition-delay: .12s } .d2 { transition-delay: .24s } .d3 { transition-delay: .36s } .d4 { transition-delay: .48s }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__logo, .hero__orbit, .hero__scroll span { animation: none; }
  html { scroll-behavior: auto; }
}

/* адаптив */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; padding-top: 40px; }
  .hero__art { order: -1; margin-bottom: 20px; }
  .hero__logo { width: min(260px, 60%); }
  .hero__orbit { width: min(360px, 85%); }
  .numbers .wrap { grid-template-columns: repeat(2, 1fr); }
  .num { border-right: 0; border-bottom: 1px solid var(--line); padding: 28px 0; }
  .num + .num { padding-left: 0; }
  .num:nth-child(odd) { padding-right: 24px; border-right: 1px solid var(--line); }
  .num:nth-child(even) { padding-left: 24px; }
  .num:nth-last-child(-n+2) { border-bottom: 0; }
  .grid3 { grid-template-columns: 1fr 1fr; }
  .split, .split--rev { grid-template-columns: 1fr; gap: 36px; }
  .split--rev .split__text { order: 0; }
  .steps { grid-template-columns: 1fr 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .wrap { padding: 0 18px; }
  .nav { padding: 12px 18px; gap: 16px; }
  .menu { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--cream); border-bottom: 1px solid var(--line); padding: 10px 18px 18px; flex-direction: column; gap: 4px; }
  .nav.is-open .menu { display: flex; }
  .menu a { padding: 12px 0; font-size: 17px; }
  .nav .btn--line { display: none; }
  .burger { display: flex; margin-left: auto; }
  .hero { padding: 24px 18px 70px; min-height: auto; }
  .hero__scroll { display: none; }
  .section { padding: 72px 0; }
  .grid3, .steps, .numbers .wrap { grid-template-columns: 1fr; }
  .num:nth-child(odd) { border-right: 0; padding-right: 0; }
  .num:nth-child(even) { padding-left: 0; }
  .num { border-bottom: 1px solid var(--line) !important; }
  .num:last-child { border-bottom: 0 !important; }
  .compare__head { display: none; }
  .compare__row { grid-template-columns: 1fr; }
  .compare__row span:first-child { border-right: 0; border-bottom: 0; padding-bottom: 6px; font-size: 13px; text-decoration: line-through; text-decoration-color: rgba(21,21,21,.3); }
  .form { padding: 22px; }
  .form__row { grid-template-columns: 1fr; gap: 0; }
  .faq summary { font-size: 20px; }
}