:root{--blue:#1e4d7b;--blue-l:#2a6cb0;--bg:#f4f7fa;--text:#1a2a3a;--muted:#5a6a7a;--wood:#8b6914;--font:"DM Sans",system-ui,sans-serif;--display:"Libre Baskerville",Georgia,serif;--h:72px}
*,*::before,*::after{box-sizing:border-box}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6}
a{color:inherit;text-decoration:none}.container{width:min(1140px,calc(100% - 40px));margin-inline:auto}
.header{position:fixed;inset:0 0 auto;z-index:50;height:var(--h);background:rgba(255,255,255,.95);backdrop-filter:blur(8px);box-shadow:0 1px 0 rgba(0,0,0,.06)}
.header__inner{height:100%;display:flex;align-items:center;justify-content:space-between}
.logo{font-family:var(--display);font-weight:700;color:var(--blue)}.nav{display:flex;gap:24px;font-size:14px;font-weight:500}
.btn{padding:12px 24px;border-radius:8px;font-weight:600;border:none;cursor:pointer;background:var(--blue);color:#fff}
.btn:hover{background:var(--blue-l)}.btn--outline{background:transparent;border:2px solid var(--blue);color:var(--blue)}
.section{padding:80px 0}.section-title{font-family:var(--display);font-size:clamp(1.8rem,4vw,2.5rem);margin:0 0 16px}
.section-lead{color:var(--muted);margin:0 0 8px}
.hero{min-height:90vh;padding-top:var(--h);display:flex;align-items:center;background:linear-gradient(120deg,#e8f0f8,#f4f7fa)}
.hero--centered{text-align:center;background:linear-gradient(180deg,#dce8f4 0%,var(--bg) 100%)}
.hero__inner{max-width:720px;margin-inline:auto}
.hero__badge{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--blue);background:rgba(30,77,123,.08);padding:8px 16px;border-radius:999px;margin-bottom:20px}
.hero h1{font-family:var(--display);font-size:clamp(2rem,4vw,3rem);line-height:1.15;margin:0 0 20px}
.hero p{color:var(--muted);margin:0 0 28px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cards--bento{grid-template-columns:1.4fr 1fr 1fr}
.card{background:#fff;border-radius:12px;padding:28px;box-shadow:0 4px 24px rgba(30,77,123,.08)}
.card h3{color:var(--blue);margin:0 0 8px;font-family:var(--display)}
.section--tech{background:var(--blue);color:#fff;padding:48px 0}
.tech-band{text-align:center;max-width:720px}
.tech-band .section-title{color:#fff;margin-bottom:12px}
.tech-band p{margin:0;opacity:.9;font-size:1.05rem}
.projects-scroll{display:flex;gap:24px;overflow-x:auto;padding:8px calc((100% - min(1140px,100% - 40px))/2) 24px;scroll-snap-type:x mandatory}
.projects-scroll::-webkit-scrollbar{height:6px}
.projects-scroll::-webkit-scrollbar-thumb{background:var(--blue-l);border-radius:3px}
.house-card{flex:0 0 min(320px,85vw);scroll-snap-align:start;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,.08)}
.house-card__img{width:100%;aspect-ratio:16/10;background:var(--bg) center/cover no-repeat}
.house-card--1 .house-card__img{background-image:url("../images/house-120.jpg")}
.house-card--2 .house-card__img{background-image:url("../images/dacha-80.jpg")}
.house-card--3 .house-card__img{background-image:url("../images/barn-150.jpg")}
.house-card--4 .house-card__img{background-image:url("../images/house-95.jpg")}
.house-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.house-card div{padding:20px}
.house-card h3{margin:0 0 6px;font-family:var(--display);color:var(--blue)}
.house-card p{margin:0;color:var(--muted);font-size:14px}
.timeline{margin:32px 0 0;padding:0;list-style:none;max-width:640px;border-left:2px solid #dde5ee}
.timeline__item{position:relative;padding:0 0 28px 36px;opacity:0;transform:translateX(-20px);transition:opacity .5s ease,transform .5s ease}
.timeline__item.visible{opacity:1;transform:none}
.timeline__item:last-child{padding-bottom:0}
.timeline__num{position:absolute;left:-14px;top:0;width:28px;height:28px;border-radius:50%;background:var(--blue);color:#fff;font-family:var(--display);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.timeline__item strong{display:block;margin-bottom:4px}
.timeline__item p{margin:0;font-size:14px;color:var(--muted)}
.section--quiz{background:#fff}
.quiz-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.quiz-layout__aside{position:sticky;top:calc(var(--h) + 24px)}
.quiz-layout__aside p{color:var(--muted);margin:0 0 24px}
.quiz-benefits{margin:0;padding:0;list-style:none;display:grid;gap:12px;font-size:15px}
.quiz-benefits li{padding-left:24px;position:relative}
.quiz-benefits li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;background:var(--blue);border-radius:50%}
.quiz{background:var(--bg);border-radius:16px;padding:40px;box-shadow:0 8px 40px rgba(30,77,123,.12);max-width:560px}
.quiz-step{display:none}.quiz-step.active{display:block}
.quiz-options{display:grid;gap:10px;margin:20px 0}
.quiz-options button{padding:14px;border:2px solid #dde5ee;border-radius:8px;background:#fff;cursor:pointer;text-align:left;font:inherit}
.quiz-options button:hover,.quiz-options button.selected{border-color:var(--blue);background:#eef4fb}
.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.form-group input,.form-group select{width:100%;padding:12px;border:1px solid #ccd6e0;border-radius:8px;font:inherit}
.form-message{margin-top:12px;font-size:14px}.footer{padding:40px 0;background:var(--blue);color:#fff;font-size:14px}
.menu-toggle{display:none;background:none;border:none;font-size:22px}
@media(max-width:900px){
  .hero__actions{flex-direction:column;align-items:center}
  .cards--bento,.quiz-layout{grid-template-columns:1fr}
  .quiz-layout__aside{position:static}
  .nav{display:none;position:fixed;inset:var(--h) 0 auto;flex-direction:column;padding:20px;background:#fff}.nav.open{display:flex}.menu-toggle{display:block}
}
@media(prefers-reduced-motion:reduce){.timeline__item{opacity:1;transform:none;transition:none}}