*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
        :root{
            --sky:#0ea5e9;--sky-dark:#0284c7;--sky-light:#7dd3fc;--sky-50:#f0f9ff;
            --slate-50:#f8fafc;--slate-100:#f1f5f9;--slate-200:#e2e8f0;--slate-300:#cbd5e1;
            --slate-400:#94a3b8;--slate-500:#64748b;--slate-600:#475569;--slate-700:#334155;
            --slate-800:#1e293b;--slate-900:#0f172a;
            --emerald:#10b981;--emerald-50:#ecfdf5;--amber:#f59e0b;--amber-50:#fffbeb;
            --red:#ef4444;--radius:12px;--shadow:0 4px 20px rgba(0,0,0,0.1);
        }
        html{scroll-behavior:smooth}
        body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;line-height:1.6;color:var(--slate-700);background:#fff}
        a{text-decoration:none;color:inherit}
        img{max-width:100%;display:block}
        .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

        /* ===== HEADER ===== */
        .header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--slate-200);box-shadow:0 1px 3px rgba(0,0,0,0.05)}
        .header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
        .logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem;color:var(--slate-900)}
        .logo-icon{width:36px;height:36px;background:var(--sky);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff}
        .nav{display:flex;gap:24px}
        .nav a{font-size:.9rem;color:var(--slate-600);transition:color .2s}
        .nav a:hover{color:var(--sky)}
        .header-right{display:flex;align-items:center;gap:12px}
        .btn{display:inline-flex;align-items:center;gap:8px;padding:10px 24px;border-radius:var(--radius);font-size:.9rem;font-weight:600;border:none;cursor:pointer;transition:all .2s}
        .btn-primary{background:var(--sky);color:#fff}
        .btn-primary:hover{background:var(--sky-dark);transform:translateY(-1px);box-shadow:var(--shadow)}
        .btn-outline{background:transparent;border:2px solid var(--slate-200);color:var(--slate-700)}
        .btn-outline:hover{border-color:var(--sky);color:var(--sky)}
        .btn-white{background:#fff;color:var(--sky-dark);border:2px solid rgba(255,255,255,0.3)}
        .btn-white:hover{background:rgba(255,255,255,0.9)}
        .btn-lg{padding:16px 40px;font-size:1.05rem;border-radius:16px}
        .btn-sm{padding:6px 16px;font-size:.8rem;border-radius:8px}
        .phone-link{display:flex;align-items:center;gap:6px;font-weight:600;color:var(--slate-900);font-size:.95rem}
        .phone-link svg{color:var(--sky);width:16px;height:16px}
        .mobile-menu{display:none}

        /* ===== HERO ===== */
        .hero{background:linear-gradient(135deg,var(--slate-900) 0%,#0c4a6e 50%,var(--slate-900) 100%);color:#fff;padding:80px 0;position:relative;overflow:hidden}
        .hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 70%,rgba(14,165,233,0.15),transparent 50%),radial-gradient(circle at 80% 20%,rgba(14,165,233,0.1),transparent 40%)}
        .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative}
        .hero h1{font-size:3rem;font-weight:800;line-height:1.2;margin-bottom:24px}
        .hero h1 span{color:var(--sky-light)}
        .hero p{font-size:1.2rem;color:#cbd5e1;margin-bottom:32px;line-height:1.7;max-width:520px}
        .hero-badges{display:flex;gap:24px;margin-top:32px;flex-wrap:wrap}
        .hero-badge{display:flex;align-items:center;gap:8px;color:#94a3b8;font-size:.85rem}
        .hero-badge svg{color:var(--sky-light);width:18px;height:18px}
        .hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:32px}

        /* ===== SECTIONS ===== */
        .section{padding:80px 0}
        .section-alt{background:var(--slate-50)}
        .section-header{text-align:center;margin-bottom:48px}
        .section-header h2{font-size:2.2rem;font-weight:700;color:var(--slate-900);margin-bottom:12px}
        .section-header p{font-size:1.05rem;color:var(--slate-500);max-width:600px;margin:0 auto}

        /* ===== CARDS ===== */
        .cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
        .card{background:#fff;border:1px solid var(--slate-200);border-radius:16px;padding:28px;transition:all .3s}
        .card:hover{box-shadow:var(--shadow);border-color:var(--sky-light);transform:translateY(-2px)}
        .card-icon{width:48px;height:48px;background:var(--sky-50);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
        .card-icon svg{width:24px;height:24px;color:var(--sky)}
        .card h3{font-size:1.15rem;font-weight:600;color:var(--slate-900);margin-bottom:8px}
        .card p{font-size:.9rem;color:var(--slate-500);line-height:1.6}

        /* ===== CALCULATOR ===== */
        .calc-models{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}
        .calc-model{padding:16px;border:2px solid var(--slate-200);border-radius:12px;text-align:center;cursor:pointer;transition:all .2s;position:relative}
        .calc-model.active{border-color:var(--sky);background:var(--sky-50)}
        .calc-model .check{position:absolute;top:6px;right:6px;color:var(--sky);display:none}
        .calc-model.active .check{display:block}
        .calc-model h4{font-size:1rem;font-weight:700;color:var(--slate-900)}
        .calc-model .size{font-size:.75rem;color:var(--slate-400);margin:4px 0}
        .calc-model .price{font-size:.95rem;font-weight:600;color:var(--sky-dark)}
        .calc-additional{display:grid;grid-template-columns:1fr 1fr;gap:10px}
        .calc-add-item{padding:12px;border:1px solid var(--slate-100);border-radius:10px;display:flex;align-items:center;gap:10px;font-size:.85rem;cursor:pointer;transition:all .2s}
        .calc-add-item:hover{border-color:var(--sky-light);background:var(--sky-50)}
        .calc-add-item.active{border-color:var(--sky);background:var(--sky-50)}
        .calc-add-item input[type=checkbox]{accent-color:var(--sky);width:16px;height:16px}
        .calc-add-item .add-price{margin-left:auto;font-weight:600;color:var(--sky-dark);white-space:nowrap}
        .calc-add-item .add-qty{width:50px;padding:2px 4px;border:1px solid var(--slate-200);border-radius:6px;text-align:center;font-size:.8rem;margin-left:4px}
        .calc-location{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
        .calc-loc-btn{padding:16px;border:2px solid var(--slate-200);border-radius:12px;text-align:center;cursor:pointer;transition:all .2s}
        .calc-loc-btn.active-free{border-color:var(--emerald);background:var(--emerald-50)}
        .calc-loc-btn.active-paid{border-color:var(--amber);background:var(--amber-50)}
        .calc-summary{background:linear-gradient(135deg,var(--sky-50),#fff);border:2px solid var(--sky-light);border-radius:16px;padding:28px;position:sticky;top:80px}
        .calc-total{font-size:2rem;font-weight:800;color:var(--sky-dark)}
        .calc-row{display:flex;justify-content:space-between;padding:6px 0;font-size:.9rem}

        /* ===== PRICE TABLE ===== */
        .price-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
        .price-header{background:var(--sky);color:#fff;padding:20px 28px}
        .price-header h3{font-size:1.3rem;font-weight:700}
        .price-header p{opacity:.8;font-size:.9rem;margin-top:4px}
        .price-row{display:flex;justify-content:space-between;align-items:center;padding:16px 28px;border-bottom:1px solid var(--slate-100);transition:background .2s}
        .price-row:hover{background:var(--slate-50)}
        .price-row .model-info{display:flex;align-items:center;gap:12px}
        .price-row .model-info .icon{width:36px;height:36px;background:var(--sky-50);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--sky)}
        .price-row .price-val{font-weight:700;font-size:1.1rem;color:var(--sky-dark)}
        .price-includes{padding:20px 28px;background:var(--slate-50)}
        .price-includes h4{font-weight:600;margin-bottom:12px;color:var(--slate-900)}
        .price-includes .check-item{display:flex;align-items:start;gap:8px;font-size:.85rem;color:var(--slate-600);padding:3px 0}
        .price-includes .check-item svg{color:var(--emerald);width:16px;height:16px;margin-top:2px;flex-shrink:0}

        /* ===== REVIEWS ===== */
        .reviews-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:20px}
        .review-card{background:#fff;border:1px solid var(--slate-200);border-radius:16px;padding:24px}
        .review-stars{color:var(--amber);font-size:1.1rem;margin-bottom:8px}
        .review-text{font-size:.9rem;color:var(--slate-600);line-height:1.6;margin-bottom:12px}
        .review-author{font-size:.85rem;color:var(--slate-500)}
        .review-author strong{color:var(--slate-800)}
        .review-photos{display:flex;gap:8px;margin:12px 0;flex-wrap:wrap}
        .review-photos img{width:80px;height:80px;object-fit:cover;border-radius:8px;cursor:pointer;transition:transform .2s}
        .review-photos img:hover{transform:scale(1.05)}

        /* ===== AUTH FORMS ===== */
        .modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
        .modal-overlay.open{display:flex}
        .modal{background:#fff;border-radius:20px;padding:36px;max-width:440px;width:100%;max-height:90vh;overflow-y:auto;position:relative}
        .modal h2{font-size:1.4rem;margin-bottom:24px;color:var(--slate-900)}
        .form-group{margin-bottom:16px}
        .form-group label{display:block;font-size:.85rem;font-weight:600;color:var(--slate-700);margin-bottom:6px}
        .form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 14px;border:1px solid var(--slate-200);border-radius:10px;font-size:.95rem;transition:border-color .2s;outline:none}
        .form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--sky)}
        .form-group textarea{resize:vertical;min-height:80px}
        .form-error{color:var(--red);font-size:.8rem;margin-top:4px}
        .form-note{font-size:.8rem;color:var(--slate-400);margin-top:4px}
        .modal-close{position:absolute;top:16px;right:16px;width:32px;height:32px;border:none;background:var(--slate-100);border-radius:8px;cursor:pointer;font-size:1.1rem;color:var(--slate-500);display:flex;align-items:center;justify-content:center}
        .modal-close:hover{background:var(--slate-200)}
        .tab-bar{display:flex;gap:0;margin-bottom:24px;border-bottom:2px solid var(--slate-200)}
        .tab-btn{flex:1;padding:10px;text-align:center;font-size:.9rem;font-weight:600;color:var(--slate-500);background:none;border:none;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s}
        .tab-btn.active{color:var(--sky);border-bottom-color:var(--sky)}

        /* ===== CONTACT ===== */
        .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
        .contact-card{display:flex;align-items:center;gap:16px;padding:16px;border-radius:12px;transition:background .2s}
        .contact-card:hover{background:var(--slate-50)}
        .contact-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
        .contact-icon svg{width:22px;height:22px}
        .contact-icon.sky{background:var(--sky-50)}.contact-icon.sky svg{color:var(--sky)}
        .contact-icon.green{background:var(--emerald-50)}.contact-icon.green svg{color:var(--emerald)}
        .contact-icon.slate{background:var(--slate-100)}.contact-icon.slate svg{color:var(--slate-500)}

        /* ===== FOOTER ===== */
        .footer{background:var(--slate-900);color:var(--slate-400);padding:48px 0}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
        .footer h4{color:#fff;font-size:.95rem;margin-bottom:16px}
        .footer ul{list-style:none}
        .footer li{padding:3px 0;font-size:.85rem}
        .footer li a:hover{color:var(--sky-light)}
        .footer-bottom{border-top:1px solid var(--slate-700);padding-top:24px;display:flex;justify-content:space-between;font-size:.85rem}

        /* ===== TOAST ===== */
        .toast{position:fixed;bottom:24px;right:24px;background:var(--slate-800);color:#fff;padding:16px 24px;border-radius:12px;font-size:.9rem;z-index:300;transform:translateY(100px);opacity:0;transition:all .3s;max-width:400px}
        .toast.show{transform:translateY(0);opacity:1}
        .toast.error{background:var(--red)}
        .toast.success{background:var(--emerald)}

        /* ===== RESPONSIVE ===== */
        @media(max-width:768px){
            .nav,.phone-link{display:none}
            .mobile-menu{display:block}
            .hero-grid{grid-template-columns:1fr;gap:32px;padding:0 0 32px}
            .hero h1{font-size:2rem}
            .hero p{font-size:1rem}
            .calc-additional,.calc-location{grid-template-columns:1fr}
            .contact-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr 1fr}
            .section{padding:48px 0}
            .reviews-grid{grid-template-columns:1fr}
        }
        .article-card{background:#fff;border:1px solid var(--slate-200);border-radius:16px;padding:0;overflow:hidden;transition:all .3s;cursor:pointer;display:flex;flex-direction:column}
        .article-card:hover{box-shadow:var(--shadow);border-color:var(--sky-light);transform:translateY(-2px)}
        .article-card-img{height:180px;background:linear-gradient(135deg,var(--sky),#0c4a6e);display:flex;align-items:center;justify-content:center;font-size:3rem;color:rgba(255,255,255,0.3);position:relative;overflow:hidden}
        .article-card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(to bottom,transparent 40%,rgba(0,0,0,0.3))}
        .article-card-body{padding:24px;flex:1;display:flex;flex-direction:column}
        .article-card-body h3{font-size:1.1rem;font-weight:600;color:var(--slate-900);margin-bottom:8px;line-height:1.4}
        .article-card-body p{font-size:.88rem;color:var(--slate-500);line-height:1.6;flex:1}
        .article-card-meta{display:flex;align-items:center;gap:8px;margin-top:16px;font-size:.78rem;color:var(--slate-400)}
        .article-card:hover .article-card-body h3{color:var(--sky-dark)}

        /* ===== DESKTOP PAGES ===== */
        /* На index.html для десктопа скрыты все секции кроме Hero (мобильный видит все) */
        .desktop-hide{display:none}
        @media(min-width:769px){
            .desktop-only{display:block !important}
            .mobile-only{display:none !important}
        }
        @media(max-width:768px){
            .desktop-only{display:none !important}
            .mobile-only{display:block !important}
        }

        /* ===== BREADCRUMB ===== */
        .breadcrumb{padding:16px 0;font-size:.85rem;color:var(--slate-400)}
        .breadcrumb a{color:var(--sky)}
        .breadcrumb a:hover{text-decoration:underline}
        .breadcrumb span{margin:0 8px}