/* ============================================
   Пеноизол-Черноземье — Современный сайт 2026
   Mobile-first | CSS Custom Properties | Minified
   ============================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;font-size:18px;line-height:1.6;color:#1a1a2e;background:#fff}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:root{--color-bg:#ffffff;--color-bg-alt:#f4f6f9;--color-bg-dark:#0d1b2a;--color-text:#1a1a2e;--color-text-light:#4a5a6a;--color-text-on-dark:#e8edf5;--color-primary:#0d1b2a;--color-accent:#d94b1e;--color-accent-hover:#b83d14;--color-success:#1ea85d;--color-border:#d0d4da;--radius:12px;--radius-sm:8px;--shadow:0 2px 12px rgba(0,0,0,0.06);--shadow-hover:0 8px 30px rgba(0,0,0,0.12);--max-width:1200px;--header-height:96px}
h1,h2,h3,h4{line-height:1.2;font-weight:700}
h1{font-size:clamp(1.8rem,4vw,3.2rem)}
h2{font-size:clamp(1.4rem,3vw,2.2rem);margin-bottom:1rem}
h3{font-size:clamp(1.1rem,2vw,1.4rem)}
.section-title{text-align:center;margin-bottom:0.5rem}
.section-subtitle{text-align:center;color:var(--color-text-light);margin-bottom:2.5rem;font-size:1.05rem}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}
.header{position:sticky;top:0;z-index:100;background:var(--color-bg-dark);color:var(--color-text-on-dark);box-shadow:0 2px 10px rgba(0,0,0,0.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-height);padding:0 20px;max-width:var(--max-width);margin:0 auto}
.header-logo{display:flex;flex-direction:column;align-items:flex-start;gap:2px}
.header-logo-link{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.header-logo-link img{height:36px;width:auto}
.header-logo-link span{font-size:1.2rem;font-weight:700;letter-spacing:-0.3px}
.header-phone-logo{font-size:0.85rem;color:#9aabc0;font-weight:500;text-decoration:none;transition:color .2s;line-height:1.2;margin-left:0}
.header-phone-logo:hover{color:var(--color-accent)}
.header-contacts{display:flex;align-items:center;gap:14px;font-size:0.95rem}
.header-phone{font-weight:600;white-space:nowrap;color:#fff}
.header-phone:hover{color:var(--color-accent)}
.header-social{display:flex;gap:8px}
.header-social a{color:var(--color-text-on-dark);font-size:1.2rem;transition:color .2s}
.header-social a:hover{color:var(--color-accent)}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;padding:4px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{display:block;padding:10px 16px;border-radius:var(--radius-sm);font-size:1rem;font-weight:500;color:var(--color-text-on-dark);transition:background .2s,color .2s}
.nav a:hover,.nav a.active{background:rgba(255,255,255,0.1);color:var(--color-accent)}
.hero{background:var(--color-bg-dark);color:var(--color-text-on-dark);padding:60px 20px 80px;position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:80px;background:var(--color-bg);clip-path:ellipse(70% 100% at 50% 100%)}
.hero-inner{max-width:var(--max-width);margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.hero-content{position:relative;z-index:1}
.hero h1{margin-bottom:1rem}
.hero p{font-size:1.2rem;color:#9aabc0;margin-bottom:1.5rem;max-width:500px}
.hero-features{display:grid;gap:12px;margin-bottom:2rem}
.hero-features li{display:flex;align-items:flex-start;gap:10px;font-size:1.05rem;color:#c0cddc}
.hero-features li::before{content:'✓';color:var(--color-success);font-weight:700;flex-shrink:0}
.hero-image{position:relative;z-index:1;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-hover)}
.hero-image img{width:100%;height:350px;object-fit:cover}
.hero-buttons{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius-sm);font-weight:600;font-size:1rem;border:none;cursor:pointer;transition:all .25s;text-align:center;justify-content:center}
.btn-primary{background:var(--color-accent);color:#fff}
.btn-primary:hover{background:var(--color-accent-hover);transform:translateY(-1px);box-shadow:0 4px 15px rgba(217,75,30,0.3)}
.btn-secondary{background:rgba(255,255,255,0.1);color:#fff;border:1px solid rgba(255,255,255,0.2)}
.btn-secondary:hover{background:rgba(255,255,255,0.2)}
.btn-outline{background:transparent;color:var(--color-primary);border:2px solid var(--color-primary)}
.btn-outline:hover{background:var(--color-primary);color:#fff}
.btn-whatsapp{background:#25D366;color:#fff}
.btn-whatsapp:hover{background:#1da851}
.btn-telegram{background:#0088cc;color:#fff}
.btn-telegram:hover{background:#0077b5}
.btn-sm{padding:8px 18px;font-size:.85rem}
.section{padding:60px 20px}
.section-alt{background:var(--color-bg-alt)}
.section-dark{background:var(--color-bg-dark);color:var(--color-text-on-dark)}
.highlights{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.highlight-card{background:#fff;padding:30px;border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;transition:transform .3s,box-shadow .3s}
.highlight-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.highlight-icon{font-size:2.2rem;margin-bottom:12px}
.highlight-card h3{margin-bottom:8px}
.highlight-card p{color:var(--color-text-light);font-size:.9rem}
.price-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.price-card{background:#fff;border:2px solid var(--color-border);border-radius:var(--radius);padding:20px;text-align:center;transition:border-color .2s,transform .2s}
.price-card:hover{border-color:var(--color-accent);transform:translateY(-2px)}
.price-card .thickness{font-size:.9rem;color:var(--color-text-light);margin-bottom:4px}
.price-card .price{font-size:1.6rem;font-weight:700;color:var(--color-accent)}
.price-card .price-note{font-size:.8rem;color:var(--color-text-light)}
.price-card.featured{border-color:var(--color-accent);background:#fff6f0}
.price-included{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:16px}
.price-included li{font-size:.9rem;display:flex;align-items:center;gap:6px}
.price-included li::before{content:'✓';color:var(--color-success);font-weight:700}
.catalog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.catalog-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.catalog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.catalog-card-img{height:280px;background:var(--color-bg-alt);display:flex;align-items:center;justify-content:center;overflow:hidden}
.catalog-card-img img{width:100%;height:100%;object-fit:cover;object-position:center center}
.catalog-card-img img[alt*="Смола"]{object-fit:contain;transform:scale(1.1)}
.catalog-card-img img[alt*="АБСКА"]{object-fit:contain;transform:scale(1.05)}
.catalog-card-img img[alt*="Кислота"]{object-fit:contain;transform:scale(1.35)}
.catalog-card-img:has(img[alt*="Смола"]),.catalog-card-img:has(img[alt*="АБСКА"]),.catalog-card-img:has(img[alt*="Кислота"]){height:350px}
.catalog-card-body{padding:20px}
.catalog-card-body h3{margin-bottom:6px;font-size:1.05rem}
.catalog-card-body .desc{font-size:.85rem;color:var(--color-text-light);margin-bottom:12px}
.catalog-card-body .cprice{font-size:1.4rem;font-weight:700;color:var(--color-accent)}
.catalog-card-body .cprice small{font-size:.8rem;font-weight:400;color:var(--color-text-light)}
.portfolio-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.portfolio-item{border-radius:var(--radius);overflow:hidden;position:relative;aspect-ratio:4/3;cursor:pointer}
.portfolio-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.portfolio-item:hover img{transform:scale(1.05)}
.portfolio-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,0.7));padding:20px;color:#fff}
.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.blog-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s}
.blog-card:hover{transform:translateY(-3px)}
.blog-card-img{height:180px;background:var(--color-bg-alt);display:flex;align-items:center;justify-content:center;font-size:2rem;color:#999}
.blog-card-body{padding:20px}
.blog-card-body .tag{font-size:.75rem;color:var(--color-accent);font-weight:600;text-transform:uppercase;letter-spacing:1px;margin-bottom:6px}
.blog-card-body h3{margin-bottom:8px;font-size:1.1rem}
.blog-card-body p{font-size:.9rem;color:var(--color-text-light);margin-bottom:12px}
.blog-card-body .date{font-size:.8rem;color:var(--color-text-light)}
.contacts-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info{display:grid;gap:24px}
.contact-item{display:flex;gap:14px}
.contact-item .icon{font-size:1.5rem;flex-shrink:0;color:var(--color-accent)}
.contact-item .label{font-size:.8rem;color:var(--color-text-light);text-transform:uppercase;letter-spacing:1px}
.contact-item .value{font-size:1.05rem;font-weight:500}
.contact-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}
.form-card{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-hover)}
.form-card h3{margin-bottom:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:.85rem;font-weight:500;margin-bottom:4px;color:var(--color-text-light)}
.form-group input,.form-group textarea{width:100%;padding:12px 14px;border:2px solid var(--color-border);border-radius:var(--radius-sm);font-size:1rem;transition:border-color .2s;background:#fff}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--color-accent)}
.form-group textarea{min-height:100px;resize:vertical}
.form-card .btn{width:100%}
.form-agree{font-size:.8rem;color:var(--color-text-light);margin-top:8px}
.calc-wrapper{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-hover);max-width:700px;margin:0 auto}
.calc-row{margin-bottom:20px}
.calc-row label{display:block;font-size:.9rem;font-weight:500;margin-bottom:6px}
.calc-row input[type=range]{width:100%;accent-color:var(--color-accent)}
.calc-values{display:flex;justify-content:space-between;font-size:.85rem;color:var(--color-text-light)}
.calc-result{text-align:center;padding:20px;background:var(--color-bg-alt);border-radius:var(--radius-sm);margin-top:20px}
.calc-result .total{font-size:2.2rem;font-weight:700;color:var(--color-accent)}
.calc-result .total small{font-size:1rem;font-weight:400}
.calc-result .note{font-size:.85rem;color:var(--color-text-light);margin-top:6px}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;text-align:center}
.stat-item .num{font-size:2.4rem;font-weight:800;color:var(--color-accent)}
.stat-item .label{font-size:.9rem;color:var(--color-text-light)}
.footer{background:var(--color-bg-dark);color:var(--color-text-on-dark);padding:40px 20px 20px}
.footer-inner{max-width:var(--max-width);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.footer h4{margin-bottom:12px;font-size:1.05rem}
.footer p,.footer a{font-size:0.95rem;color:#9aabc0}
.footer a:hover{color:var(--color-accent)}
.footer-links{display:grid;gap:6px}
.footer-bottom{margin-top:30px;padding-top:20px;border-top:1px solid rgba(255,255,255,0.1);text-align:center;font-size:.85rem;color:#8a9aaa}
.floating-contacts{position:fixed;bottom:24px;right:24px;z-index:99;display:flex;flex-direction:column;gap:10px}
.floating-btn{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.4rem;box-shadow:0 4px 16px rgba(0,0,0,0.2);transition:transform .2s}
.floating-btn:hover{transform:scale(1.1)}
.floating-tg{background:#0088cc}
.floating-wa{background:#25D366}
.page-header{background:var(--color-bg-dark);color:var(--color-text-on-dark);padding:40px 20px;text-align:center}
.page-header h1{margin-bottom:8px}
.page-header p{color:#9aabc0;font-size:1.05rem}
.about-text{max-width:800px;margin:0 auto;line-height:1.8}
.about-text p{margin-bottom:16px;color:var(--color-text-light)}
.about-text ul{margin:16px 0;display:grid;gap:8px}
.about-text li{display:flex;align-items:flex-start;gap:8px;font-size:.95rem}
.about-text li::before{content:'✓';color:var(--color-success);font-weight:700;flex-shrink:0}
.feedback-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.feedback-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border-left:4px solid var(--color-accent)}
.feedback-card .name{font-weight:700;margin-bottom:4px}
.feedback-card .loc{font-size:.8rem;color:var(--color-text-light);margin-bottom:12px}
.feedback-card .text{font-size:.9rem;color:var(--color-text-light);line-height:1.7}
.faq-list{max-width:800px;margin:0 auto;display:grid;gap:16px}
.faq-item{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.faq-item h3{color:var(--color-accent);margin-bottom:8px;font-size:1.05rem}
.faq-item p{font-size:.95rem;color:var(--color-text-light);line-height:1.7}
.partners-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;text-align:center}
.partner-card{background:#fff;padding:30px 20px;border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .3s}
.partner-card:hover{transform:translateY(-3px)}
.partner-icon{font-size:2.5rem;margin-bottom:12px}
.partner-card h4{margin-bottom:6px;font-size:1rem}
.partner-card p{font-size:.85rem;color:var(--color-text-light)}
.doc-list{display:grid;gap:12px;max-width:600px;margin:0 auto}
.doc-item{display:flex;align-items:center;gap:12px;background:#fff;padding:16px 20px;border-radius:var(--radius-sm);box-shadow:var(--shadow)}
.doc-icon{font-size:1.5rem;color:var(--color-accent)}
.doc-item span{font-size:.95rem}
.text-block p{color:var(--color-text-light);line-height:1.75;margin-bottom:8px;font-size:.95rem;text-align:justify;text-indent:2em}
.text-block p:first-of-type{text-indent:0}
.text-block ul{display:grid;gap:8px;margin:16px 0}
.text-block li{display:flex;align-items:flex-start;gap:8px;font-size:.95rem}
.text-block li::before{content:'✓';color:var(--color-success);font-weight:700;flex-shrink:0}
.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.team-card{background:#fff;border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow)}
.team-card .avatar{font-size:3rem;margin-bottom:12px}
.team-card h4{margin-bottom:4px}
.team-card p{font-size:.85rem;color:var(--color-text-light)}
@media(max-width:768px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;top:var(--header-height);left:0;right:0;background:var(--color-bg-dark);flex-direction:column;padding:10px 20px 20px;box-shadow:0 10px 30px rgba(0,0,0,0.3)}
  .nav.open{display:flex}
  .nav a{width:100%;padding:12px 14px}
  .hero-inner,.contacts-grid{grid-template-columns:1fr}
  .hero-image{display:none}
  .hero{padding:40px 20px 60px}
  .footer-inner{grid-template-columns:1fr}
  .price-included{grid-template-columns:1fr}
  .section{padding:40px 20px}
  .header-logo span{display:none}
  .header-contacts{gap:8px}
}
@media(max-width:480px){
  .hero h1{font-size:1.6rem}
  .price-grid{grid-template-columns:1fr 1fr}
  .highlights{grid-template-columns:1fr}
}


/* Yandex Metrika */
.ym-disable-auto { display: none; }
/* Breadcrumbs */
.breadcrumbs-wrap{background:var(--color-bg-dark);width:100%}
.breadcrumbs{display:flex;align-items:center;gap:6px;padding:8px 20px;font-size:0.85rem;color:#9aabc0;max-width:var(--max-width);margin:0 auto;width:100%}
.breadcrumbs a{color:#9aabc0;transition:color .2s}
.breadcrumbs a:hover{color:var(--color-accent)}
.breadcrumbs .sep{color:#6a7a8a;font-size:0.75rem;user-select:none}
.breadcrumbs .current{color:#c0cddc;font-weight:500}

/* Social buttons */
.btn-vk{background:#4a76a8;color:#fff}
.btn-vk:hover{background:#3a6598}
.floating-vk{background:#4a76a8}
.floating-vk:hover{background:#3a6598}
/* Social placeholders (Max, OK) */
.btn-max{background:#0088cc;color:#fff}
.btn-max:hover{background:#0077b5}
.btn-ok{background:#ed812b;color:#fff}
.btn-ok:hover{background:#d6721e}
.floating-max{background:#0088cc}
.floating-max:hover{background:#0077b5}
.floating-ok{background:#ed812b}
.floating-ok:hover{background:#d6721e}
/* Calculator manual input */
.calc-row-with-input{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.calc-row-with-input .calc-row{flex:1;min-width:200px;margin-bottom:0}
.calc-manual-input{width:90px;padding:8px 10px;border:2px solid var(--color-border);border-radius:var(--radius-sm);font-size:1rem;text-align:center;font-weight:600;transition:border-color .2s}
.calc-manual-input:focus{outline:none;border-color:var(--color-accent)}
.calc-manual-input::-webkit-inner-spin-button{-webkit-appearance:none}
.calc-manual-input[type=number]{-moz-appearance:textfield}
/* Blog card link */
a.blog-card-link{display:block;text-decoration:none;color:inherit;border-radius:var(--radius);overflow:hidden;transition:transform .3s,box-shadow .3s}
a.blog-card-link:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
a.blog-card-link .blog-card{border-radius:0;box-shadow:none}
a.blog-card-link .blog-card:hover{transform:none;box-shadow:none}

/* Article content readability */
.article-content p{margin-bottom:8px;line-height:1.75;text-align:justify;text-indent:2em}
.article-content p:first-of-type{text-indent:0}
.article-content h2{margin-top:32px;margin-bottom:14px;font-size:1.5rem}
.article-content h3{margin-top:24px;margin-bottom:10px;font-size:1.15rem}
.article-content ul,.article-content ol{margin-bottom:14px;padding-left:20px}
.article-content li{margin-bottom:6px;line-height:1.7;text-align:justify}
.article-content ul li{list-style:disc}
.article-content ol li{list-style:decimal}
.article-content strong,.text-block strong{color:var(--color-accent)}

/* Hero slider */
.hero-image{position:relative;z-index:1;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-hover);height:350px}
.hero-slider{position:relative;width:100%;height:100%}
.hero-slider img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1s ease-in-out}
.hero-slider img.active{opacity:1}
@media(max-width:768px){.hero-image{display:none}}