*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#2c3e50;line-height:1.6}
a{text-decoration:none;color:inherit;transition:color .3s}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

.header{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.1);position:sticky;top:0;z-index:100;animation:slideDown .5s}
.nav{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;max-width:1200px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:#1e3a5f;transition:transform .3s}
.logo:hover{transform:scale(1.05)}
.logo svg{animation:rotate 10s linear infinite}
@keyframes rotate{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}
.menu{display:flex;list-style:none;gap:30px}
.menu a{color:#2c3e50;font-weight:500;position:relative}
.menu a::after{content:'';position:absolute;bottom:-5px;left:0;width:0;height:2px;background:#ff6b35;transition:width .3s}
.menu a:hover::after{width:100%}
.burger{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer}
.burger span{width:25px;height:3px;background:#1e3a5f;transition:all .3s}
.burger.active span:nth-child(1){transform:rotate(45deg) translateY(7px)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:rotate(-45deg) translateY(-7px)}

.banner{background:linear-gradient(135deg,#1e3a5f 0%,#2c5282 100%);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.banner::before{content:'';position:absolute;width:200%;height:200%;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect width="100" height="100" fill="none"/><circle cx="50" cy="50" r="40" stroke="rgba(255,255,255,0.05)" stroke-width="0.5" fill="none"/></svg>');animation:float 20s infinite linear}
@keyframes float{0%{transform:translate(-50%,-50%)}100%{transform:translate(0,0)}}
.banner .container{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.title{font-size:clamp(32px,5vw,48px);margin-bottom:20px;animation:fadeInUp 1s}
.subtitle{font-size:24px;opacity:.9;margin-bottom:30px;animation:fadeInUp 1s .2s backwards}
.features{display:flex;gap:40px;margin-bottom:40px}
.feature{animation:fadeInUp 1s .4s backwards}
.feature .num{display:block;font-size:36px;font-weight:700;color:#ff6b35}
.cta{background:#ff6b35;color:#fff;padding:15px 40px;font-size:18px;border:none;border-radius:30px;cursor:pointer;transition:all .3s;animation:pulse 2s infinite}
.cta:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(255,107,53,.3)}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,107,53,.4)}50%{box-shadow:0 0 0 20px rgba(255,107,53,0)}}

.house-3d{position:relative;animation:fadeIn 1s .6s backwards}
.house-svg{width:100%;height: 400px;filter:drop-shadow(0 10px 30px rgba(0,0,0,.2))}
#house-group{transform-origin:center;animation:float3d 4s ease-in-out infinite}
@keyframes float3d{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.controls{display:flex;gap:10px;justify-content:center;margin-top:20px}
.controls button{background:#fff;color:#1e3a5f;border:2px solid #fff;padding:8px 15px;border-radius:20px;cursor:pointer;transition:all .3s}
.controls button:hover{background:#ff6b35;border-color:#ff6b35;color:#fff}

.services{padding:80px 0;background:#f8f9fa}
.services h2{text-align:center;font-size:36px;color:#1e3a5f;margin-bottom:50px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.card{background:#fff;padding:30px;border-radius:15px;box-shadow:0 5px 20px rgba(0,0,0,.08);transition:all .3s;opacity:0;animation:fadeInUp 1s forwards}
.card:nth-child(1){animation-delay:.1s}
.card:nth-child(2){animation-delay:.2s}
.card:nth-child(3){animation-delay:.3s}
.card:hover{transform:translateY(-10px);box-shadow:0 15px 40px rgba(0,0,0,.15)}
.card .icon{width:60px;height:60px;margin-bottom:20px}
.card h3{font-size:24px;color:#1e3a5f;margin-bottom:15px}
.card p{color:#666;margin-bottom:20px}
.price{font-size:20px;font-weight:700;color:#ff6b35}

.calculator{padding:80px 0;background:linear-gradient(135deg,#f8f9fa 0%,#e9ecef 100%)}
.calculator h2{text-align:center;font-size:36px;color:#1e3a5f;margin-bottom:50px}
.calc-wrapper{background:#fff;border-radius:20px;padding:40px;box-shadow:0 10px 40px rgba(0,0,0,.1);display:grid;grid-template-columns:1fr 1fr;gap:40px}
.input-group{margin-bottom:25px}
.input-group label{display:block;margin-bottom:10px;font-weight:600;color:#2c3e50}
input[type="range"]{width:100%;height:6px;background:#e0e0e0;border-radius:3px;outline:none;-webkit-appearance:none}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;background:#ff6b35;border-radius:50%;cursor:pointer}
input[type="range"]::-moz-range-thumb{width:20px;height:20px;background:#ff6b35;border-radius:50%;cursor:pointer}
select{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:16px;transition:border-color .3s}
select:focus{border-color:#ff6b35;outline:none}
.calc-result{background:linear-gradient(135deg,#1e3a5f 0%,#2c5282 100%);color:#fff;padding:30px;border-radius:15px;text-align:center}
.calc-result h3{margin-bottom:20px}
.total{font-size:48px;font-weight:700;color:#ff6b35;margin-bottom:20px;animation:countUp 1s}
@keyframes countUp{from{opacity:0;transform:scale(0.5)}to{opacity:1;transform:scale(1)}}
.calc-result p{line-height:2;margin-bottom:20px}

.advantages{padding:80px 0}
.advantages h2{text-align:center;font-size:36px;color:#1e3a5f;margin-bottom:50px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px}
.advantage{text-align:center;opacity:0;animation:fadeIn 1s forwards}
.advantage:nth-child(1){animation-delay:.1s}
.advantage:nth-child(2){animation-delay:.2s}
.advantage:nth-child(3){animation-delay:.3s}
.advantage:nth-child(4){animation-delay:.4s}
.emoji{font-size:60px;display:block;margin-bottom:20px;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.advantage h3{font-size:24px;color:#1e3a5f;margin-bottom:15px}
.advantage p{color:#666}

.text-content{padding:60px 0;background:#f8f9fa}
.text-content h2{font-size:32px;color:#1e3a5f;margin-bottom:30px}
.text-content p{color:#666;margin-bottom:20px;text-align:justify}

.footer{background:#1e3a5f;color:#fff;padding:40px 0;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px}
.footer h4{margin-bottom:20px;color:#ff6b35}
.footer ul{list-style:none}
.footer li{margin-bottom:10px}
.footer a{opacity:.8;transition:opacity .3s}
.footer a:hover{opacity:1;color:#ff6b35}
.copy{margin-top:20px;opacity:.6}

.breadcrumbs{padding:20px 0;background:#f8f9fa}
.breadcrumbs ul{display:flex;list-style:none;gap:10px;align-items:center}
.breadcrumbs li:not(:last-child)::after{content:'→';margin-left:10px;color:#999}
.breadcrumbs a{color:#ff6b35}
.breadcrumbs a:hover{text-decoration:underline}

.page-header{background:linear-gradient(135deg,#1e3a5f 0%,#2c5282 100%);color:#fff;padding:60px 0;text-align:center}
.page-header h1{font-size:42px;margin-bottom:20px}
.page-header p{font-size:20px;opacity:.9}

.content-section{padding:60px 0}
.content-section:nth-child(even){background:#f8f9fa}
.content-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:40px;margin-top:40px}
.project-card{background:#fff;border-radius:15px;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,.1);transition:transform .3s}
.project-card:hover{transform:translateY(-5px)}
.project-img{width:100%;height:200px;background:linear-gradient(45deg,#ff6b35,#1e3a5f);display:flex;align-items:center;justify-content:center}
.project-info{padding:25px}
.project-info h3{color:#1e3a5f;margin-bottom:10px}
.specs{display:flex;gap:20px;margin:15px 0;color:#666;font-size:14px}
.project-price{font-size:24px;font-weight:700;color:#ff6b35}

.timeline{position:relative;padding:40px 0}
.timeline::before{content:'';position:absolute;left:50%;top:0;bottom:0;width:2px;background:#ff6b35}
.timeline-item{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:40px;align-items:center}
.timeline-item:nth-child(even) .timeline-content{order:2}
.timeline-content{background:#fff;padding:30px;border-radius:15px;box-shadow:0 5px 20px rgba(0,0,0,.1);position:relative}
.timeline-content::after{content:'';position:absolute;top:50%;width:20px;height:20px;background:#ff6b35;border-radius:50%;border:4px solid #fff}
.timeline-item:nth-child(odd) .timeline-content::after{right:-50px}
.timeline-item:nth-child(even) .timeline-content::after{left:-50px}
.step-number{font-size:48px;font-weight:700;color:#ff6b35;opacity:.3}

.tech-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin-top:40px}
.tech-card{background:#fff;padding:30px;border-radius:15px;border:2px solid #e0e0e0;transition:all .3s}
.tech-card:hover{border-color:#ff6b35;transform:scale(1.02)}
.tech-icon{width:80px;height:80px;margin-bottom:20px}

.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px;margin-top:40px}
.team-member{text-align:center;padding:20px}
.avatar{width:120px;height:120px;border-radius:50%;background:linear-gradient(135deg,#ff6b35,#1e3a5f);margin:0 auto 20px;display:flex;align-items:center;justify-content:center;font-size:48px;color:#fff}
.team-member h3{color:#1e3a5f;margin-bottom:5px}
.team-member p{color:#999}

.contact-grid{display:grid;grid-template-columns:2fr 1fr;gap:40px;margin-top:40px}
.contact-form{background:#fff;padding:40px;border-radius:15px;box-shadow:0 5px 20px rgba(0,0,0,.1)}
.form-group{margin-bottom:25px}
.form-group label{display:block;margin-bottom:10px;font-weight:600}
.form-group input,.form-group textarea{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:16px}
.contact-info{background:linear-gradient(135deg,#1e3a5f,#2c5282);color:#fff;padding:40px;border-radius:15px}
.contact-item{margin-bottom:25px}
.contact-item h3{color:#ff6b35;margin-bottom:10px}

@keyframes slideDown{from{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

@media(max-width:768px){
.menu{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:20px;box-shadow:0 5px 20px rgba(0,0,0,.1)}
.menu.active{display:flex}
.burger{display:flex}
.banner .container{grid-template-columns:1fr}
.house-3d{margin-top:40px}
.calc-wrapper{grid-template-columns:1fr}
.timeline::before{left:20px}
.timeline-item{grid-template-columns:1fr;padding-left:60px}
.timeline-content::after{left:-40px!important}
.contact-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
}