/* Modern responsive redesign (static site) */

:root{
  --bg: #0b1220;
  --surface: #0f172a;
  --card: rgba(255,255,255,.06);
  --card-2: rgba(255,255,255,.10);
  --text: #e5e7eb;
  --muted: rgba(229,231,235,.72);
  --muted-2: rgba(229,231,235,.58);
  --border: rgba(255,255,255,.14);
  --primary: #007cad;
  --primary-2: #005f84;
  --shadow: 0 18px 60px rgba(2,6,23,.55);
  --shadow-soft: 0 14px 40px rgba(2,6,23,.35);
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 12px;
  --container: 1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html, body{
  max-width: 100%;
  overflow-x: hidden;
}
[id]{
  scroll-margin-top: calc(86px + 1cm);
}
#top{
  scroll-margin-top: 0;
}
body{
  margin:0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 30% 0%, rgba(72,176,249,.18), transparent 55%),
              radial-gradient(900px 500px at 70% 10%, rgba(0,124,173,.14), transparent 55%),
              linear-gradient(180deg, #070b14 0%, #0b1220 30%, #0b1220 100%);
  color: var(--text);
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img{max-width:100%; height:auto; display:block}
a{color:inherit}

.sr-only{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

.container{
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.skip{
  position:absolute;
  left:-9999px;
  top:auto;
  width:1px;
  height:1px;
  overflow:hidden;
}
.skip:focus{
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 10px 12px;
  border-radius: 12px;
  background: #fff;
  color: #111827;
  z-index: 9999;
}

/* Header / Nav */
.header{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 50;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  background: rgba(11, 18, 32, .10);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
main{
  padding-top: 74px;
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  padding: 12px 0;
  background: transparent;
}
.brand{
  display:flex;
  align-items:center;
  gap: 0;
  text-decoration:none;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.brand-badge{
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(72,176,249,.9) 0%, rgba(72,176,249,.25) 100%);
  box-shadow: 0 10px 26px rgba(72,176,249,.25);
  border: 1px solid rgba(255,255,255,.20);
}
.brand span{
  color: var(--primary);
}

.nav-actions{
  display:flex;
  align-items:center;
  gap: 10px;
}
.lang{
  display:flex;
  align-items:center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.lang a{
  text-decoration:none;
  padding: 6px 8px;
  border-radius: 10px;
  border: 2px solid transparent;
}
.lang a[aria-current="page"]{
  border-color: rgba(0,124,173,.35);
  color: var(--text);
}
.menu-btn{
  display:none;
  align-items:center;
  justify-content:center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(11,18,32,.18);
  color: var(--text);
}
.menu-icon{
  width: 22px;
  height: 16px;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}
.menu-icon span{
  display:block;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transform-origin: center;
  transition: transform .18s ease, opacity .18s ease;
}
.menu-btn[aria-expanded="true"] .menu-icon span:nth-child(1){
  transform: translateY(7px) rotate(45deg);
}
.menu-btn[aria-expanded="true"] .menu-icon span:nth-child(2){
  opacity: 0;
}
.menu-btn[aria-expanded="true"] .menu-icon span:nth-child(3){
  transform: translateY(-7px) rotate(-45deg);
}

.menu{
  display:flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items:center;
  justify-content:flex-end;
  margin-left: auto;
}
.menu a{
  text-decoration:none;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(229,231,235,.88);
  transition: background .15s ease, transform .15s ease, border-color .15s ease;
}
.menu a:hover{
  background: rgba(11,18,32,.22);
  border-color: rgba(255,255,255,.18);
  transform: translateY(-1px);
}

/* Hero */
.hero{
  position: relative;
  padding: 72px 0 56px;
  overflow:hidden;
  background-color: #0b1220;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  filter: saturate(1.08) contrast(1.03);
}
.hero-ru{
  background-image:
    linear-gradient(180deg, rgba(2,6,23,.32) 0%, rgba(2,6,23,.38) 100%),
    url('../images/hero-rubber-pad.png');
  background-position: center bottom;
}
.hero-en{
  background-image:
    linear-gradient(180deg, rgba(2,6,23,.28) 0%, rgba(2,6,23,.34) 45%, rgba(2,6,23,.42) 100%),
    url('../images/pad_new.jpg');
  background-position: center bottom;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 26px;
  align-items: center;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(0,124,173,.55);
  background: linear-gradient(180deg, rgba(0,124,173,.24) 0%, rgba(0,124,173,.14) 100%);
  color: #fff;
  font-size: 12px;
  letter-spacing: .10em;
  text-transform: uppercase;
  box-shadow: 0 8px 24px rgba(0,124,173,.20);
}
.hero h1{
  margin: 14px 0 0;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-shadow: var(--shadow-soft);
}
.hero p{
  margin: 14px 0 0;
  color: rgba(229,231,235,.84);
  font-size: 16px;
  max-width: 58ch;
}
.hero-cta{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  text-decoration:none;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-size: 12px;
  transition: transform .15s ease, filter .15s ease, background .15s ease;
}
.btn:hover{ transform: translateY(-1px); filter: brightness(1.03); }
.btn-primary{
  border-color: rgba(0,124,173,.40);
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-2) 100%);
  box-shadow: 0 18px 40px rgba(0,124,173,.18);
}
.hero-card{
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(11,18,32,.22);
  box-shadow: var(--shadow);
  padding: 16px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.hero-card h3{
  margin: 0;
  font-size: 14px;
  letter-spacing: .10em;
  text-transform: uppercase;
  color: rgba(229,231,235,.88);
}
.hero-kpis{
  margin-top: 12px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.kpi{
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  padding: 12px;
}
.kpi strong{
  display:block;
  font-size: 18px;
  letter-spacing: -0.02em;
}
.kpi span{
  display:block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

/* Sections */
.section{
  padding: 64px 0;
}
.section-title{
  margin: 0;
  font-size: clamp(26px, 3.2vw, 38px);
  letter-spacing: -0.02em;
}
.section-subtitle{
  margin: 10px 0 0;
  color: var(--muted);
  max-width: 80ch;
}

#dealers .section-subtitle{
  margin-bottom: 18px;
}
.grid-2{
  margin-top: 24px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}
.section#about .grid-2{
  align-items: stretch;
}
.section#about .grid-2 > .card{
  display: flex;
}
.section#about .grid-2 > .card > .card-body{
  width: 100%;
  height: 100%;
}
.section#about .grid-2 > .card:first-child > .card-body > img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}
#contacts .grid-2{
  align-items: stretch;
}
#contacts .grid-2 > .card{
  display: flex;
}
#contacts .grid-2 > .card > .card-body{
  width: 100%;
  height: 100%;
}
.card{
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  box-shadow: var(--shadow-soft);
}
.card-body{ padding: 18px; }

.features{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.feature{
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  padding: 12px;
}
.feature strong{ display:block; font-size: 14px; }
.feature span{ display:block; margin-top: 4px; color: var(--muted); font-size: 13px; }

/* Gallery */
.gallery-grid{
  margin-top: 22px;
  display:grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}
#application .card{
  margin-top: 28px;
}
.gallery-grid a{
  border-radius: 14px;
  overflow:hidden;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  display:block;
  position:relative;
}
.gallery-grid img{
  width:100%;
  height: 140px;
  object-fit: cover;
  transition: transform .2s ease;
}
.gallery-grid a:hover img{ transform: scale(1.03); }
.gallery-more{
  margin-top: 14px;
  display:flex;
  gap: 12px;
  align-items:center;
  flex-wrap: wrap;
}
.muted{ color: var(--muted); }

/* Prices */
.price-grid{
  margin-top: 22px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.price-card{
  overflow:hidden;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
}
.price-media{
  height: 190px;
  background-size: cover;
  background-position: center;
}
.price-card h3{
  margin: 0;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.price-card p{
  margin: 10px 0 0;
  color: var(--muted);
}
.price-card .price{
  margin-top: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Forms */
.form{
  margin-top: 18px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.field{ display:flex; flex-direction:column; gap: 8px; }
.field label{
  font-size: 12px;
  letter-spacing: .10em;
  text-transform: uppercase;
  color: var(--muted);
}
.input, .textarea{
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--text);
  padding: 12px 12px;
  font-size: 14px;
}
.textarea{ min-height: 140px; resize: vertical; grid-column: 1 / -1; }
.input:focus, .textarea:focus{
  outline: none;
  border-color: rgba(0,124,173,.55);
  box-shadow: 0 0 0 4px rgba(0,124,173,.16);
}
.form-actions{
  grid-column: 1 / -1;
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items:center;
  margin-top: 6px;
}
.btn-ghost{
  background: transparent;
}
.result{
  margin-top: 12px;
  color: rgba(229,231,235,.9);
}
.contact-meta a{
  text-decoration: none;
  color: inherit;
}
.messenger-links{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items:center;
  margin-top: 12px;
}
.msgr-btn{
  --msgr: var(--primary);
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  box-shadow: 0 10px 28px rgba(2,6,23,.35);
  color: var(--msgr);
  transition: transform .15s ease, background .15s ease, border-color .15s ease, filter .15s ease;
}
.msgr-btn:hover{
  transform: translateY(-1px);
  filter: brightness(1.06);
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.26);
}
.msgr-btn svg{
  width: 18px;
  height: 18px;
  display:block;
  fill: currentColor;
}
.msgr-btn--telegram{ --msgr: #229ED9; }
.msgr-btn--whatsapp{ --msgr: #25D366; }
.msgr-btn--viber{ --msgr: #7360F2; }
.clients-grid{
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.client-item{
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.04);
  text-align: center;
  font-weight: 600;
  letter-spacing: .01em;
}

/* Footer */
.footer{
  border-top: 1px solid var(--border);
  padding: 34px 0 44px;
  background: rgba(2,6,23,.35);
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 20px;
  align-items: start;
}
.footer-nav{
  display:flex;
  gap: 10px;
  flex-wrap: nowrap;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}
.footer-nav a{
  text-decoration:none;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  color: rgba(229,231,235,.82);
  font-size: 12px;
  letter-spacing: .10em;
  text-transform: uppercase;
  white-space: nowrap;
  flex: 0 0 auto;
}
.social{
  display:flex;
  gap: 12px;
  justify-content:flex-end;
}
.social a{
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  display:flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
}
.copyright{
  margin-top: 16px;
  color: var(--muted-2);
  font-size: 13px;
}

/* Lightbox */
.lightbox{
  position: fixed;
  inset: 0;
  background: rgba(2,6,23,.82);
  display:none;
  align-items:center;
  justify-content:center;
  padding: 18px;
  z-index: 100;
}
.lightbox[aria-hidden="false"]{ display:flex; }
.lightbox-inner{
  width: min(1100px, 100%);
  border-radius: var(--radius-lg);
  overflow:hidden;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  box-shadow: var(--shadow);
}
.lightbox-bar{
  display:flex;
  justify-content:center;
  align-items:center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,.12);
  color: rgba(229,231,235,.84);
  font-size: 13px;
}
.lightbox-bar [data-lightbox-title]{
  margin: 0 auto;
  text-align: center;
}
.lightbox-bar button{
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--text);
  cursor:pointer;
}
.lightbox-img{
  width: 100%;
  max-height: 75vh;
  object-fit: contain;
  background: rgba(2,6,23,.35);
}
.lightbox-side{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 58px;
  height: 58px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.24);
  background: rgba(11,18,32,.45);
  color: #fff;
  font-size: 34px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.lightbox-side:hover{
  background: rgba(11,18,32,.65);
}
.lightbox-side-left{
  left: 24px;
}
.lightbox-side-right{
  right: 24px;
}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-card{ order: 2; }
  .features{ grid-template-columns: 1fr; }
  .gallery-grid{ grid-template-columns: repeat(4, 1fr); }
  .clients-grid{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .price-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; }
  .footer-nav{
    flex-wrap: wrap;
    overflow-x: visible;
    justify-content: center;
    gap: 8px;
  }
  .footer-nav a{
    padding: 6px 8px;
    font-size: 11px;
    letter-spacing: .06em;
  }
  .social{ justify-content:flex-start; }
  .lightbox-side{
    width: 52px;
    height: 52px;
    font-size: 30px;
  }
}

@media (max-width: 720px){
  main{
    padding-top: 68px;
  }
  [id]{
    scroll-margin-top: calc(72px + 1cm);
  }
  #top{
    scroll-margin-top: 0;
  }
  .nav{
    justify-content: flex-start;
  }
  .brand{
    order: 2;
  }
  .nav-actions{
    order: 3;
    margin-left: auto;
  }
  .menu-btn{
    order: 1;
    margin-left: 0;
  }
  .menu-btn{ display:inline-flex; }
  .menu{
    display:none;
    width: 100%;
    padding: 10px 0 4px;
    justify-content:flex-start;
    margin-left: 0;
  }
  .menu[data-open="true"]{ display:flex; }
  .nav{ flex-wrap: wrap; }
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); }
  .gallery-grid img{ height: 160px; }
  .clients-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-2{ grid-template-columns: 1fr; }
  .form{ grid-template-columns: 1fr; }
  .footer-nav{
    flex-wrap: wrap;
    overflow-x: visible;
    justify-content: center;
    gap: 8px;
  }
  .footer-nav a{
    padding: 6px 8px;
    font-size: 11px;
    letter-spacing: .06em;
  }
  .lightbox-side{
    width: 46px;
    height: 46px;
    font-size: 26px;
  }
  .lightbox-side-left{ left: 10px; }
  .lightbox-side-right{ right: 10px; }
}