/* ============================================================
   SolarKam — design tokens
   Base: deep navy (PV-cell dark) + cool paper + copper wire accent
   Type: Unbounded (display, Cyrillic) / PT Sans (body, Cyrillic-native) / JetBrains Mono (specs)
   Motif: the tilt angle of a mounted panel — used for dividers & frames instead of cards/hairlines
   ============================================================ */

:root{
  --ink:        #0D1B2A;
  --ink-soft:   #16283B;
  --paper:      #ECEFE9;
  --paper-alt:  #DDE3DA;
  --copper:     #A85D2C;
  --copper-lt:  #C97C46;
  --pine:       #33513F;
  --graphite:   #5B6670;
  --line:       rgba(13,27,42,0.14);
  --tilt: -6deg;

  --font-display: "Unbounded", sans-serif;
  --font-body: "PT Sans", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
}

img,svg{ max-width:100%; display:block; }
a{ color: inherit; }

h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.4em;
  letter-spacing: -0.01em;
}
h1{ font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 800; }
h2{ font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3{ font-size: 1.15rem; }

p{ max-width: 62ch; margin: 0 0 1em; color: var(--ink-soft); }

.mono{ font-family: var(--font-mono); font-size: 0.85rem; letter-spacing: 0.01em; }

.wrap{
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- topbar (quick contact) ---------- */
.topbar{
  background: var(--ink);
  color: var(--paper);
}
.topbar .wrap{
  display:flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  align-items:center;
  justify-content: flex-end;
  padding-top: 8px;
  padding-bottom: 8px;
  font-size: 0.86rem;
}
.topbar a{
  text-decoration:none;
  color: var(--paper);
  opacity: 0.88;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.topbar a:hover{ opacity:1; color: var(--copper-lt); }
.topbar svg{ width:14px; height:14px; flex:none; }
.topbar .pending{
  display:inline-flex;
  align-items:center;
  gap:6px;
  opacity:0.5;
}

/* ---------- header + dropdown menu (top-left) ---------- */
.site-header{
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top:0;
  z-index: 20;
}
.site-header .wrap{
  display:flex;
  align-items:center;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  text-decoration:none;
  color: var(--ink);
  white-space: nowrap;
}
.brand span{ color: var(--copper); }

.menu-wrap{ position: relative; }
.menu-toggle{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  background: none;
  border: 2px solid var(--ink);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  padding: 9px 16px;
  cursor: pointer;
}
.menu-toggle svg{ width:18px; height:18px; flex:none; }
.menu-toggle:hover{ border-color: var(--copper); color: var(--copper); }
.menu-toggle[aria-expanded="true"]{ background: var(--ink); border-color: var(--ink); color: var(--paper); }

.site-menu{
  display:none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 260px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 14px 30px rgba(13,27,42,0.18);
  z-index: 30;
}
.site-menu.is-open{ display:block; }
.site-menu ul{ list-style:none; margin:0; padding:8px 0; }
.site-menu a{
  display:block;
  padding: 11px 20px;
  text-decoration:none;
  color: var(--ink-soft);
  font-size: 0.96rem;
  white-space: nowrap;
}
.site-menu a:hover{ background: var(--paper-alt); color: var(--ink); }
.site-menu a[aria-current="page"]{
  color: var(--ink);
  font-weight: 700;
  border-left: 3px solid var(--copper);
  padding-left: 17px;
}
.site-menu a.menu-parent-active{ color: var(--ink); font-weight: 700; }

/* ---------- под-меню "Продукти" (акордеон) ---------- */
.menu-row{ display:flex; align-items:stretch; }
.menu-row a{ flex:1; }
.submenu-toggle{
  background: none;
  border: none;
  border-left: 1px solid var(--line);
  color: var(--ink-soft);
  cursor: pointer;
  padding: 0 16px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.submenu-toggle svg{ width:16px; height:16px; transition: transform 0.15s ease; }
.submenu-toggle:hover{ color: var(--copper); }
.submenu-toggle[aria-expanded="true"] svg{ transform: rotate(180deg); }
.submenu{
  display:none;
  list-style:none;
  margin:0;
  padding: 4px 0 8px;
  background: var(--paper-alt);
}
.submenu.is-open{ display:block; }
.submenu a{ padding: 9px 20px 9px 34px; font-size: 0.9rem; }

@media (max-width: 860px){
  .topbar .wrap{ justify-content:flex-start; }
}

/* ---------- tilt divider — the recurring structural device ---------- */
.tilt-divider{
  height: 46px;
  background: var(--ink);
  transform: skewY(var(--tilt));
  margin: 64px 0 -10px;
}
.tilt-divider.pine{ background: var(--pine); }
.tilt-divider.copper{ background: var(--copper); }

/* ---------- hero ---------- */
.hero{
  padding: 64px 0 40px;
  display:grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items:center;
}
.hero .eyebrow{
  font-family: var(--font-mono);
  color: var(--copper);
  font-size: 0.85rem;
  margin-bottom: 14px;
}
.hero p.lede{ font-size: 1.08rem; }
.cta-row{ display:flex; gap:14px; flex-wrap:wrap; margin-top: 26px; }
.btn{
  display:inline-block;
  padding: 13px 24px;
  text-decoration:none;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.96rem;
  border: 2px solid var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% 78%, 92% 100%, 0 100%);
}
.btn-solid{ background: var(--ink); color: var(--paper); }
.btn-solid:hover{ background: var(--copper); border-color: var(--copper); }
.btn-outline{ background: transparent; color: var(--ink); }
.btn-outline:hover{ border-color: var(--copper); color: var(--copper); }

.hero-art{ transform: rotate(-2deg); }

/* ---------- part icons row ---------- */
.parts{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
  gap: 30px;
  padding: 46px 0 10px;
}
.part-item svg{ width:56px; height:56px; color: var(--pine); margin-bottom: 14px; }
.part-item h3{ margin-bottom: 6px; }
.part-item p{ font-size: 0.95rem; margin:0; }

/* ---------- category teasers ---------- */
.section-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap: 20px;
  padding-top: 54px;
  flex-wrap: wrap;
}
.section-head a{ font-size: 0.92rem; text-decoration:none; color: var(--copper); white-space:nowrap; }

.tile-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(240px,1fr));
  gap: 22px;
  padding-top: 26px;
}
.tile{
  border: 1px solid var(--line);
  padding: 26px 22px;
  text-decoration:none;
  color: var(--ink);
  background: #fff;
  position:relative;
  overflow:hidden;
}
.tile::before{
  content:"";
  position:absolute;
  top:0; right:0;
  width: 46px; height: 46px;
  background: var(--copper);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  opacity: 0.9;
}
.tile svg{ width:34px; height:34px; color: var(--pine); margin-bottom: 16px; }
.tile h3{ margin-bottom: 6px; }
.tile p{ font-size: 0.92rem; margin:0; }

/* ---------- product cards (catalog pages) ---------- */
.catalog-section{ padding-top: 58px; }
.catalog-section .kicker{
  font-family: var(--font-mono);
  color: var(--copper);
  font-size: 0.82rem;
}
.product-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(250px,1fr));
  gap: 22px;
  padding-top: 24px;
}
.product-card{
  border: 1px solid var(--line);
  background:#fff;
  padding: 0;
}
.product-card .swatch{
  height: 110px;
  background: var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 88%);
  display:flex;
  align-items:center;
  justify-content:center;
}
.product-card .swatch svg{ width:44px; height:44px; color: var(--paper); }
.product-card .swatch img{ width:100%; height:100%; object-fit: contain; padding: 10px; background: #fff; }
.product-card .body{ padding: 18px 20px 22px; }
.product-card h3{ font-size: 1.02rem; margin-bottom: 6px; }
.product-card .spec{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--graphite);
  display:block;
  margin-bottom: 12px;
}
.product-card .note{ font-size: 0.85rem; color: var(--copper); margin:0; }
.product-card .brand-tag{ font-size: 0.8rem; color: var(--graphite); display:block; margin-bottom: 10px; }
.product-card .price{ display:flex; align-items:baseline; gap:9px; flex-wrap:wrap; }
.product-card .price-old{ text-decoration: line-through; color: var(--graphite); font-size: 0.85rem; font-family: var(--font-mono); }
.product-card .price-new{ font-family: var(--font-mono); font-weight: 700; color: var(--copper); font-size: 1.1rem; }

.placeholder-note{
  border-left: 3px solid var(--copper);
  padding: 10px 16px;
  background: var(--paper-alt);
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 22px 0 0;
  max-width: none;
}

/* ---------- empty / stub states ---------- */
.empty-state{
  padding: 70px 0 90px;
  max-width: 620px;
}
.empty-state .eyebrow{
  font-family: var(--font-mono);
  color: var(--copper);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

/* ---------- contact page ---------- */
.contact-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
  gap: 20px;
  padding-top: 30px;
  max-width: 780px;
}
.contact-card{
  border: 1px solid var(--line);
  background:#fff;
  padding: 24px 22px;
}
.contact-card h3{ margin-bottom: 4px; }
.contact-card .role{ font-size: 0.85rem; color: var(--graphite); margin-bottom: 16px; display:block; }
.contact-card .links{ display:flex; flex-direction:column; gap:10px; }
.contact-card a{
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  font-size: 0.95rem;
}
.contact-card a:hover{ color: var(--copper); }
.contact-card svg{ width:16px; height:16px; color: var(--pine); flex:none; }

/* ---------- footer ---------- */
footer{
  margin-top: 90px;
  background: var(--ink);
  color: var(--paper);
}
footer .wrap{
  padding: 46px 24px 30px;
  display:grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 32px;
}
footer .brand{ color: var(--paper); }
footer .brand span{ color: var(--copper-lt); }
footer p{ color: rgba(236,239,233,0.72); font-size: 0.92rem; }
footer h4{
  font-family: var(--font-body);
  font-weight:700;
  font-size: 0.9rem;
  margin: 0 0 12px;
  color: var(--paper);
}
footer ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:9px; }
footer a{
  text-decoration:none;
  color: rgba(236,239,233,0.82);
  font-size: 0.92rem;
}
footer a:hover{ color: var(--copper-lt); }
.footer-bottom{
  border-top: 1px solid rgba(236,239,233,0.14);
  padding: 16px 24px 26px;
  font-size: 0.8rem;
  color: rgba(236,239,233,0.55);
}

@media (max-width: 760px){
  .hero{ grid-template-columns: 1fr; }
  footer .wrap{ grid-template-columns: 1fr; }
}