/* ==========================================================================
   Shunxin · liniyaudobreniy.com — Russian front-end design system
   Palette: чернозём (graphite) + лист (green) + пшеница (gold)
   ========================================================================== */

:root {
  --ink: #14211c;
  --ink-2: #1d3128;
  --ink-3: #24402f;
  --green: #2f6d4f;
  --green-2: #3d8a63;
  --green-soft: #e8f0ea;
  --gold: #d9a441;
  --gold-2: #c08a2c;
  --gold-soft: #fbf3e2;
  --paper: #f5f4ef;
  --paper-2: #ffffff;
  --line: #e0e1d9;
  --line-strong: #c8cbc0;
  --muted: #6b7a72;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 20px 40px -28px rgba(20, 33, 28, .45);
  --shadow-sm: 0 10px 24px -18px rgba(20, 33, 28, .35);
  --wrap: 1240px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.62;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--green); text-decoration: none; }
a:hover { color: var(--gold-2); }
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -.01em; margin: 0 0 .55em; }
h2 { font-size: clamp(23px, 2.1vw, 31px); }
h3 { font-size: 19px; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.15em; }
li { margin-bottom: .4em; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 8px; top: 8px; background: #fff; padding: 8px 12px; z-index: 100; }

/* ---------------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: var(--radius-sm); border: 1px solid transparent;
  font-weight: 600; font-size: 15px; cursor: pointer; transition: .18s ease;
  text-align: center;
}
.btn-sm { padding: 10px 16px; font-size: 14px; }
.btn-primary { background: var(--gold); color: #3a2a12; }
.btn-primary:hover { background: var(--gold-2); color: #2c1f0d; }
.btn-ghost { border-color: rgba(255, 255, 255, .35); color: #fff; background: rgba(255, 255, 255, .06); }
.btn-ghost:hover { background: rgba(255, 255, 255, .16); color: #fff; }
.btn-outline { border-color: var(--line-strong); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--green); color: var(--green); }

/* ---------------------------------------------------------------- topbar */
.topbar { background: var(--ink); color: #b9c8bf; font-size: 13px; }
.topbar .wrap { display: flex; gap: 18px; align-items: center; justify-content: space-between; min-height: 38px; }
.topbar-links { display: flex; gap: 16px; flex-wrap: wrap; }
.topbar a { color: #e7ede9; }
.topbar a:hover { color: var(--gold); }
.topbar-note { color: var(--gold); }

/* ---------------------------------------------------------------- header */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.header-inner { display: flex; align-items: center; gap: 20px; min-height: 74px; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--ink); flex: 0 0 auto; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 9px 9px 9px 3px;
  background: linear-gradient(135deg, var(--green), var(--green-2));
  color: #fff; font-weight: 800; display: grid; place-items: center; font-size: 15px; letter-spacing: .04em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 17px; }
.brand-text i { font-style: normal; font-size: 11.5px; color: var(--muted); letter-spacing: .04em; text-transform: uppercase; }

.main-nav { display: flex; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 6px; padding: 10px 12px; border-radius: var(--radius-sm);
  color: var(--ink); font-size: 15px; font-weight: 500;
}
.nav-item:hover > .nav-link, .nav-item.is-active > .nav-link { background: var(--green-soft); color: var(--green); }
.caret { width: 7px; height: 7px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); opacity: .6; }
.nav-item:not(.has-children) .caret { display: none; }
.submenu {
  position: absolute; left: 0; top: calc(100% + 6px); min-width: 270px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 8px; display: none; z-index: 50;
}
.nav-item:hover .submenu { display: block; }
.submenu a { display: block; padding: 9px 12px; border-radius: var(--radius-sm); color: var(--ink-2); font-size: 14.5px; }
.submenu a:hover { background: var(--green-soft); color: var(--green); }

.header-actions { display: flex; align-items: center; gap: 10px; margin-left: 12px; }
.icon-btn { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 9px; cursor: pointer; color: var(--ink-2); }
.icon-btn:hover { border-color: var(--green); color: var(--green); }
.burger { display: none; width: 42px; height: 38px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; cursor: pointer; }
.burger span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 3px auto; }

/* ---------------------------------------------------------------- drawer + search */
.mobile-drawer {
  position: fixed; inset: 0 0 0 auto; width: min(360px, 88vw); background: #fff; z-index: 60;
  box-shadow: -20px 0 50px -30px rgba(0, 0, 0, .5); display: flex; flex-direction: column;
}
.drawer-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 18px; border-bottom: 1px solid var(--line); font-weight: 700; }
.drawer-head button { background: none; border: 0; font-size: 24px; cursor: pointer; color: var(--muted); }
.drawer-body { flex: 1; overflow: auto; padding: 8px 12px 20px; }
.drawer-body details { border-bottom: 1px solid var(--line); }
.drawer-body summary { padding: 13px 6px; font-weight: 600; cursor: pointer; }
.drawer-sub { display: flex; flex-direction: column; padding: 0 6px 10px; }
.drawer-sub a, .drawer-link { padding: 9px 6px; color: var(--ink-2); font-size: 14.5px; border-bottom: 1px solid var(--line); display: block; }
.drawer-foot { padding: 14px; border-top: 1px solid var(--line); }
.drawer-foot .btn { width: 100%; }
.search-panel { position: fixed; inset: 0; background: rgba(20, 33, 28, .55); z-index: 70; padding-top: 90px; }
.search-panel .wrap { background: #fff; border-radius: var(--radius); padding: 16px; max-width: 760px; box-shadow: var(--shadow); }
.search-panel input { width: 100%; padding: 14px 16px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); font-size: 17px; font-family: var(--font); }
.search-results { max-height: 60vh; overflow: auto; margin-top: 10px; }
.search-results a { display: block; padding: 11px 12px; border-radius: var(--radius-sm); border-bottom: 1px solid var(--line); color: var(--ink); }
.search-results a:hover { background: var(--green-soft); }
.search-results b { display: block; font-size: 15px; }
.search-results span { font-size: 13px; color: var(--muted); }

/* ---------------------------------------------------------------- crumbs */
.crumbs { background: #fff; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.crumbs .wrap { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding-top: 10px; padding-bottom: 10px; }
.crumbs i { font-style: normal; color: var(--line-strong); }
.crumbs span[aria-current] { color: var(--ink); font-weight: 500; }

/* ---------------------------------------------------------------- hero */
.hero { background: linear-gradient(160deg, var(--ink) 0%, var(--ink-2) 62%, var(--ink-3) 100%); color: #fff; padding: 56px 0 60px; position: relative; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .35; pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 56px 56px;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 44px; align-items: center; }
.hero-copy h1 { color: #fff; font-size: clamp(30px, 3.4vw, 47px); margin: 14px 0 16px; }
.hero .kicker { display: inline-block; font-size: 12.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--gold); font-weight: 700; }
.hero .lead { color: #cfe0d6; font-size: 17px; max-width: 62ch; }
.hero-bullets { list-style: none; padding: 0; margin: 18px 0 22px; display: grid; gap: 8px; }
.hero-bullets li { padding-left: 26px; position: relative; color: #dbe9e1; }
.hero-bullets li::before { content: ""; position: absolute; left: 0; top: 9px; width: 12px; height: 7px; border-left: 2px solid var(--gold); border-bottom: 2px solid var(--gold); transform: rotate(-45deg); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.hero-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; border-top: 1px solid rgba(255, 255, 255, .16); padding-top: 20px; }
.hero-facts .fact b { display: block; font-size: 21px; color: var(--gold); }
.hero-facts .fact span { font-size: 13px; color: #b8cbc0; }
.hero-media { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(255, 255, 255, .16); background: #0f1a15; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; max-height: 420px; }

/* ---------------------------------------------------------------- blocks */
.block { padding: 44px 0; }
.block:nth-of-type(even) { background: #fff; }
.block .section-intro { color: var(--muted); max-width: 78ch; margin-bottom: 22px; }
.note { font-size: 13px; color: var(--muted); margin-top: 10px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--green-soft); color: var(--ink-2); font-size: 13.5px; text-transform: uppercase; letter-spacing: .04em; }
table.specs tbody th { width: 44%; background: #fafaf7; font-weight: 600; color: var(--ink-2); }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); gap: 16px; }
.card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; color: var(--ink); transition: .18s ease;
}
.card:hover { border-color: var(--green); box-shadow: var(--shadow-sm); transform: translateY(-2px); color: var(--ink); }
.card-img { display: block; aspect-ratio: 3 / 2; background: #eef0ea; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 15px 16px 18px; display: grid; gap: 6px; }
.card-body b { font-size: 16.5px; }
.card-body span { color: var(--muted); font-size: 14.5px; }

.steps { list-style: none; padding: 0; display: grid; gap: 12px; counter-reset: step; }
.steps li { display: grid; grid-template-columns: 40px 1fr; gap: 4px 14px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 15px 18px; }
.steps .step-no { grid-row: span 2; width: 34px; height: 34px; border-radius: 50%; background: var(--green); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 15px; }
.steps li b { font-size: 16.5px; }
.steps li span:last-child { color: var(--muted); font-size: 14.5px; }

ul.rich { list-style: none; padding: 0; }
ul.rich li { padding-left: 24px; position: relative; }
ul.rich li::before { content: ""; position: absolute; left: 4px; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }

.gallery { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); margin: 22px 0; }
.gallery figure { margin: 0; }
.gallery img { border-radius: var(--radius-sm); border: 1px solid var(--line); background: #fff; }
.gallery-1 { grid-template-columns: minmax(0, 1fr); }
.gallery-1 img { max-height: 460px; object-fit: cover; }
.gallery figcaption { font-size: 13px; color: var(--muted); margin-top: 6px; }

.prose { max-width: 900px; }
.prose h2 { margin-top: 1.6em; }
.prose h3 { margin-top: 1.4em; color: var(--ink-2); }
.prose .table-wrap { margin: 20px 0; }
.prose blockquote { margin: 20px 0; padding: 14px 20px; border-left: 3px solid var(--gold); background: var(--gold-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.callout { background: var(--gold-soft); border: 1px solid #edd9b0; border-radius: var(--radius); padding: 16px 20px; }
.inline-cta { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; background: var(--green-soft); border: 1px solid #cfe0d4; border-radius: var(--radius); padding: 18px 22px; }
.inline-cta b { display: block; font-size: 18px; }
.inline-cta span { color: var(--muted); font-size: 14.5px; }
.video { position: relative; padding-top: 56.25%; border-radius: var(--radius); overflow: hidden; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------------------------------------------------------------- faq */
.block-faq { background: #fff; }
.faq-list { display: grid; gap: 10px; max-width: 940px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.faq-item[open] { border-color: var(--green); box-shadow: var(--shadow-sm); }
.faq-item summary { cursor: pointer; padding: 15px 18px; font-weight: 600; font-size: 16.5px; list-style: none; position: relative; padding-right: 46px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 18px; top: 12px; font-size: 22px; color: var(--green); transition: .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-answer { padding: 0 18px 16px; color: #33463c; }
.faq-more { margin-top: 16px; color: var(--muted); font-size: 14.5px; }

/* ---------------------------------------------------------------- quote form */
.block-quote { background: linear-gradient(180deg, #fff 0%, var(--green-soft) 100%); padding: 52px 0 58px; }
.quote-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: 38px; align-items: start; }
.quote-points { list-style: none; padding: 0; display: grid; gap: 8px; margin-bottom: 22px; }
.quote-points li { padding-left: 26px; position: relative; }
.quote-points li::before { content: ""; position: absolute; left: 0; top: 9px; width: 12px; height: 7px; border-left: 2px solid var(--green); border-bottom: 2px solid var(--green); transform: rotate(-45deg); }
.quote-contacts { display: grid; gap: 10px; }
.quote-contacts a { display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 16px; color: var(--ink); }
.quote-contacts a b { display: block; font-size: 17px; }
.quote-contacts a span { font-size: 13px; color: var(--muted); }

.quote-form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; box-shadow: var(--shadow); }
.quote-form .field.wide { grid-column: 1 / -1; }
.quote-form label { display: grid; gap: 6px; font-size: 13.5px; color: var(--muted); }
.quote-form label span { color: #c0392b; }
.quote-form input, .quote-form select, .quote-form textarea {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  font-size: 15px; font-family: var(--font); color: var(--ink); background: #fdfdfb;
}
.quote-form input:focus, .quote-form select:focus, .quote-form textarea:focus { outline: 2px solid rgba(47, 109, 79, .3); border-color: var(--green); }
.quote-submit { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.quote-consent { font-size: 12.5px; color: var(--muted); max-width: 42ch; }
.quote-status { grid-column: 1 / -1; padding: 12px 14px; border-radius: var(--radius-sm); font-size: 14.5px; }
.quote-status.ok { background: var(--green-soft); color: #1f5138; border: 1px solid #cfe0d4; }
.quote-status.err { background: #fdecea; color: #922b21; border: 1px solid #f5c6c2; }

/* ---------------------------------------------------------------- cta + related */
.cta-band { background: var(--ink); color: #fff; padding: 34px 0; }
.cta-inner { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between; }
.cta-inner h2 { color: #fff; margin-bottom: 6px; font-size: 23px; }
.cta-inner p { color: #b9c8bf; margin: 0; max-width: 62ch; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.rel-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; }
.rel-card { display: grid; gap: 6px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; color: var(--ink); }
.rel-card:hover { border-color: var(--green); color: var(--ink); box-shadow: var(--shadow-sm); }
.rel-tag { font-size: 11.5px; text-transform: uppercase; letter-spacing: .1em; color: var(--green); }
.rel-desc { color: var(--muted); font-size: 14px; }

/* ---------------------------------------------------------------- footer */
.site-footer { background: #0e1a15; color: #a9bdb1; padding: 46px 0 20px; font-size: 14.5px; }
.foot-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 26px; }
.foot-col h3 { color: #fff; font-size: 14px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 12px; }
.foot-col a { display: block; color: #b7c9be; padding: 4px 0; }
.foot-col a:hover { color: var(--gold); }
.foot-brand p { margin-bottom: 8px; }
.foot-brand b { color: #fff; }
.foot-plants { list-style: none; padding: 0; margin: 10px 0; }
.foot-plants li { font-size: 13.5px; }
.foot-bottom { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 28px; padding-top: 16px; font-size: 13px; }
.foot-bottom a { color: #cfe0d6; }

/* ---------------------------------------------------------------- mobile cta */
.desk-cta { display: none; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 1180px) {
  .main-nav { display: none; }
  .burger { display: block; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 26px; }
  .quote-grid { grid-template-columns: 1fr; }
  .hero { padding: 40px 0 44px; }
}

@media (max-width: 680px) {
  body { font-size: 15.5px; padding-bottom: 66px; }
  .topbar-note { display: none; }
  .topbar .wrap { justify-content: center; }
  .header-actions .btn-sm { display: none; }
  .brand-text i { display: none; }
  .wrap { padding: 0 14px; }
  .quote-form { grid-template-columns: 1fr; padding: 16px; }
  .block { padding: 32px 0; }
  .foot-grid { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; }
  .desk-cta {
    display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 1px;
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 55; background: var(--line);
    border-top: 1px solid var(--line-strong);
  }
  .desk-cta-item { background: #fff; padding: 9px 6px; text-align: center; font-size: 13px; font-weight: 600; color: var(--ink); display: grid; place-items: center; }
  .desk-cta-item span { display: block; font-size: 11px; color: var(--muted); font-weight: 400; }
  .desk-cta-item b { font-size: 13px; }
  .desk-cta-item.accent { background: var(--gold); color: #3a2a12; }
}

/* ---------------------------------------------------------------- configurator */
.configurator {
  display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 24px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow);
}
.configurator-form { display: grid; gap: 14px; align-content: start; }
.config-row label { display: grid; gap: 6px; font-size: 13.5px; color: var(--muted); }
.config-row select {
  padding: 12px 13px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  font-size: 15px; font-family: var(--font); background: #fdfdfb; color: var(--ink);
}
.configurator-result { background: var(--green-soft); border: 1px solid #cfe0d4; border-radius: var(--radius); padding: 20px; }
.configurator-result .kicker { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--green); font-weight: 700; }
.configurator-result h3 { margin: 8px 0 14px; }
.cfg-metrics { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 16px; }
.cfg-metrics div b { display: block; font-size: 20px; }
.cfg-metrics div span { font-size: 12.5px; color: var(--muted); }
.cfg-list { list-style: none; padding: 0; margin: 0 0 14px; display: grid; gap: 6px; }
.cfg-list li { padding-left: 22px; position: relative; font-size: 15px; }
.cfg-list li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.cfg-note { font-size: 13px; color: var(--muted); }

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