/* ============================================================
   ЛЕСНОЙ ДОМ — сайт строительной компании
   Каркас и механика взяты из разбора baunfire.com,
   палитра и приёмы переведены под загородное строительство.
   ============================================================ */

:root{
  /* --- тёплая палитра вместо холодной digital-серой --- */
  --accent:#c2571f;          /* терракота — вместо агрессивного красного */
  --accent-dark:#a3451494;
  --accent-soft:#f0e2d6;
  --clay:#8c5a3c;
  --moss:#4a5741;            /* второй акцент: приглушённая зелень */

  --ink:#1c1a17;             /* тёплый графит: фон тёмных секций */
  --ink-2:#2a2621;
  --text:#241f1a;
  --text-2:#5c5349;
  --text-3:#8b8073;
  --line:#e2dad0;
  --sand:#f7f4f0;            /* основной светлый фон */
  --sand-2:#efe9e1;
  --white:#fff;

  /* --- кривые из оригинала --- */
  --ease-1:cubic-bezier(.475,.425,0,.995);
  --ease-3:cubic-bezier(.19,1,.22,1);
  --ease-4:cubic-bezier(.63,.03,.21,1);

  --content:1200px;
  --gutter:40px;
  --ui:#fff;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:'Jost',-apple-system,sans-serif;
  font-weight:300;font-size:19px;line-height:33px;letter-spacing:.02em;
  color:var(--text);background:var(--white);overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
::selection{background:var(--accent);color:#fff}

/* ---------- типографика ---------- */
.type-h1{
  font-family:'Montserrat',sans-serif;font-weight:700;
  font-size:clamp(38px,5vw,66px);line-height:1.15;letter-spacing:-.02em;
}
.type-h2{
  font-family:'Montserrat',sans-serif;font-weight:700;
  font-size:clamp(30px,3.2vw,44px);line-height:1.2;letter-spacing:-.015em;
}
.type-h3{
  font-family:'Montserrat',sans-serif;font-weight:700;
  font-size:23px;line-height:1.3;letter-spacing:-.01em;
}
.eyebrow{
  font-weight:600;font-size:14px;line-height:26px;
  letter-spacing:.34em;text-transform:uppercase;color:var(--accent);
}
.eyebrow--muted{color:var(--text-3)}
.lead{font-size:19px;line-height:33px;color:var(--text-2)}
.muted{color:var(--text-3)}

.container{width:100%;max-width:var(--content);margin:0 auto;padding:0 var(--gutter)}
.section{position:relative;padding:130px 0}
@media(max-width:768px){.section{padding:80px 0}}
.section--sand{background:var(--sand)}
.section--dark{background:var(--ink);color:#fff}
.section__head{max-width:760px;margin-bottom:70px}
.section__head .type-h2{margin:14px 0 16px}

/* ============================================================
   ХЕДЕР — телефон вынесен вперёд, CTA всегда на виду
   ============================================================ */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px var(--gutter);color:var(--ui);
  transition:background .5s var(--ease-1),padding .5s var(--ease-1),
             box-shadow .5s var(--ease-1);
}
body.is-scrolled .header{
  background:var(--white);color:var(--text);padding:14px var(--gutter);
  box-shadow:0 1px 0 var(--line);
}
.logo{display:flex;align-items:center;gap:12px;font-family:'Montserrat',sans-serif;font-weight:700;letter-spacing:.06em;font-size:17px}
.logo__mark{
  width:36px;height:36px;flex:none;border:1.6px solid currentColor;
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.logo__sub{display:block;font-family:'Jost';font-weight:300;font-size:11px;letter-spacing:.18em;text-transform:uppercase;opacity:.6}
.header__right{display:flex;align-items:center;gap:26px}
.header__phone{font-family:'Montserrat',sans-serif;font-weight:700;font-size:19px;letter-spacing:.01em;white-space:nowrap}
.header__wa{
  display:flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;background:#25d366;color:#fff;
  font-size:16px;transition:transform .4s var(--ease-1);
}
.header__wa:hover{transform:scale(1.1)}
@media(max-width:900px){.header__phone,.logo__sub{display:none}}

/* ---------- кнопки ---------- */
.btn{
  display:inline-flex;align-items:center;gap:12px;position:relative;
  padding:17px 32px;font-weight:600;font-size:14px;letter-spacing:.12em;
  text-transform:uppercase;cursor:pointer;border:none;
  background:var(--accent);color:#fff;overflow:hidden;
  transition:background .4s var(--ease-1),transform .4s var(--ease-1);
}
.btn:hover{background:#a94816;transform:translateY(-2px)}
.btn span{position:relative;z-index:1}
.btn--ghost{background:transparent;border:1px solid currentColor;color:inherit}
.btn--ghost:hover{background:currentColor;transform:translateY(-2px)}
.btn--ghost:hover span{color:var(--ink)}
.btn--wide{width:100%;justify-content:center}
.btn--lg{padding:21px 40px;font-size:15px}

/* ============================================================
   HERO — фото дома, факты-плашки, два действия
   ============================================================ */
.hero{position:relative;min-height:100vh;display:flex;align-items:flex-end;padding-bottom:70px;color:#fff;overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);animation:heroZoom 9s var(--ease-3) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero__bg::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(28,26,23,.72) 0%,rgba(28,26,23,.28) 42%,rgba(28,26,23,.88) 100%);
}
.hero__content{position:relative;z-index:2;width:100%}
/* на фото терракота тонет — на тёмном фоне ведём надпись светлее */
.hero .eyebrow{color:#ff9366}
.hero__title{max-width:900px;margin:18px 0 22px}
.hero__text{max-width:520px;color:rgba(255,255,255,.82)}
.hero__actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:38px}
.hero__facts{
  display:grid;grid-template-columns:repeat(3,auto);gap:60px;
  margin-top:70px;padding-top:34px;border-top:1px solid rgba(255,255,255,.18);
}
.hero__fact b{display:block;font-family:'Montserrat',sans-serif;font-weight:700;font-size:38px;line-height:1.1;letter-spacing:-.02em}
.hero__fact span{font-size:15px;color:rgba(255,255,255,.62);line-height:1.4;display:block;margin-top:6px}
@media(max-width:768px){
  .hero__facts{grid-template-columns:1fr;gap:22px}
  .hero__fact b{font-size:28px}
}

/* ---------- reveal (механика из оригинала) ---------- */
.reveal{opacity:0;transform:translateY(22px);
  transition:opacity .9s var(--ease-1),transform .9s var(--ease-1)}
.reveal.is-visible{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.1s}
.reveal[data-delay="2"]{transition-delay:.2s}
.reveal[data-delay="3"]{transition-delay:.3s}
.split{display:inline-block}
.split__word{display:inline-block;white-space:nowrap}
.split__char{
  display:inline-block;opacity:0;transform:translateY(.3em);
  clip-path:inset(0 0 100% 0);
  transition:opacity .6s var(--ease-1),transform .8s var(--ease-3),clip-path .8s var(--ease-4);
}
.is-visible .split__char{opacity:1;transform:none;clip-path:inset(-20% 0 -20% 0)}

/* ============================================================
   КАЛЬКУЛЯТОР — главный инструмент продаж
   ============================================================ */
.calc{background:var(--ink);color:#fff;padding:120px 0;position:relative;overflow:hidden}
.calc::before{
  content:'';position:absolute;top:-160px;right:-160px;width:520px;height:520px;
  border-radius:50%;background:radial-gradient(circle,rgba(194,87,31,.28),transparent 68%);
}
.calc__head{position:relative;z-index:2;max-width:640px;margin-bottom:56px}
.calc__head .type-h2{margin:14px 0 14px}
.calc__head .lead{color:rgba(255,255,255,.66)}
.calc__body{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 400px;gap:44px;align-items:start;
}
@media(max-width:1000px){.calc__body{grid-template-columns:1fr}}

.calc__panel{background:var(--ink-2);padding:40px}
.calc__group{margin-bottom:38px}
.calc__group:last-child{margin-bottom:0}
.calc__label{
  display:flex;justify-content:space-between;align-items:baseline;
  font-size:13px;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(255,255,255,.5);margin-bottom:18px;font-weight:500;
}
.calc__label b{font-family:'Montserrat',sans-serif;font-size:22px;color:#fff;letter-spacing:0}

/* плитки выбора — цветные, с иконкой-полосой */
.calc__tiles{display:grid;gap:12px}
.calc__tiles--3{grid-template-columns:repeat(3,1fr)}
.calc__tiles--2{grid-template-columns:repeat(2,1fr)}
@media(max-width:600px){.calc__tiles--3,.calc__tiles--2{grid-template-columns:1fr}}
.tile{
  position:relative;padding:20px 18px;cursor:pointer;text-align:left;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);
  transition:background .4s var(--ease-1),border-color .4s var(--ease-1),transform .4s var(--ease-1);
}
.tile:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.tile.is-on{background:var(--accent);border-color:var(--accent)}
.tile__bar{height:3px;width:34px;background:var(--accent);margin-bottom:14px;transition:width .5s var(--ease-4),background .4s var(--ease-1)}
.tile.is-on .tile__bar{width:100%;background:#fff}
.tile__name{display:block;font-family:'Montserrat',sans-serif;font-weight:700;font-size:16px;margin-bottom:4px}
.tile__note{display:block;font-size:13px;line-height:19px;color:rgba(255,255,255,.55)}
.tile.is-on .tile__note{color:rgba(255,255,255,.85)}

/* ползунок площади */
.calc__range{width:100%;-webkit-appearance:none;appearance:none;height:4px;background:rgba(255,255,255,.14);outline:none;cursor:pointer}
.calc__range::-webkit-slider-thumb{
  -webkit-appearance:none;width:26px;height:26px;border-radius:50%;
  background:var(--accent);border:4px solid var(--ink-2);cursor:grab;
  box-shadow:0 0 0 1px var(--accent);
}
.calc__range::-moz-range-thumb{
  width:26px;height:26px;border-radius:50%;background:var(--accent);
  border:4px solid var(--ink-2);cursor:grab;
}
.calc__scale{display:flex;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.35);margin-top:10px}

/* чекбоксы допов */
.calc__opts{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:600px){.calc__opts{grid-template-columns:1fr}}
.opt{
  display:flex;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);
  transition:background .35s var(--ease-1),border-color .35s var(--ease-1);
  font-size:15px;
}
.opt:hover{background:rgba(255,255,255,.09)}
.opt.is-on{border-color:var(--accent);background:rgba(194,87,31,.16)}
.opt__box{
  width:20px;height:20px;flex:none;border:1.5px solid rgba(255,255,255,.35);
  display:flex;align-items:center;justify-content:center;font-size:12px;color:transparent;
  transition:background .3s var(--ease-1),border-color .3s var(--ease-1),color .3s var(--ease-1);
}
.opt.is-on .opt__box{background:var(--accent);border-color:var(--accent);color:#fff}
.opt__price{margin-left:auto;color:rgba(255,255,255,.45);font-size:14px;white-space:nowrap}

/* итоговая карточка */
.calc__result{background:var(--accent);padding:38px;position:sticky;top:100px}
.calc__result-label{font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.72)}
.calc__price{
  font-family:'Montserrat',sans-serif;font-weight:700;
  font-size:clamp(32px,3.4vw,44px);line-height:1.1;letter-spacing:-.025em;
  margin:12px 0 6px;white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
.calc__permeter{color:rgba(255,255,255,.78);font-size:15px}
.calc__rows{margin:30px 0;border-top:1px solid rgba(255,255,255,.24)}
.calc__row{
  display:flex;justify-content:space-between;gap:16px;
  padding:13px 0;border-bottom:1px solid rgba(255,255,255,.18);
  font-size:15px;line-height:22px;
}
.calc__row span:first-child{color:rgba(255,255,255,.78)}
.calc__row b{font-weight:600;white-space:nowrap}
.calc__terms{display:flex;gap:34px;margin-bottom:26px}
.calc__term{display:flex;flex-direction:column;gap:4px}
.calc__term b{
  font-family:'Montserrat',sans-serif;font-weight:700;font-size:26px;line-height:1.1;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
/* только прямой потомок — иначе правило съедает и цифру внутри <b> */
.calc__term > span{font-size:13px;line-height:18px;color:rgba(255,255,255,.72)}
.calc__cta{background:#fff;color:var(--accent);width:100%;justify-content:center}
.calc__cta:hover{background:var(--ink);color:#fff}
.calc__note{font-size:13px;line-height:19px;color:rgba(255,255,255,.7);margin-top:16px}

/* ============================================================
   ПРОЕКТЫ — каталог с фильтром и параметрами
   ============================================================ */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:50px}
.filter{
  padding:11px 22px;cursor:pointer;font-size:14px;letter-spacing:.06em;
  background:transparent;border:1px solid var(--line);color:var(--text-2);
  transition:all .35s var(--ease-1);
}
.filter:hover{border-color:var(--accent);color:var(--accent)}
.filter.is-on{background:var(--ink);border-color:var(--ink);color:#fff}

.projects{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
@media(max-width:1000px){.projects{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.projects{grid-template-columns:1fr}}
.project{
  background:var(--white);border:1px solid var(--line);
  display:flex;flex-direction:column;
  transition:transform .55s var(--ease-3),box-shadow .55s var(--ease-1),border-color .4s;
}
.project:hover{transform:translateY(-6px);box-shadow:0 22px 50px rgba(28,26,23,.13);border-color:transparent}
.project.is-hidden{display:none}
.project__media{position:relative;aspect-ratio:4/3;overflow:hidden}
.project__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease-3)}
.project:hover .project__media img{transform:scale(1.06)}
.project__badge{
  position:absolute;left:0;top:20px;background:var(--accent);color:#fff;
  padding:7px 16px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;
}
.project__body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1}
.project__name{font-family:'Montserrat',sans-serif;font-weight:700;font-size:22px;letter-spacing:-.01em}
.project__specs{display:flex;flex-wrap:wrap;gap:18px;margin:16px 0 10px;font-size:14px;color:var(--text-2)}
.project__specs b{font-weight:600;color:var(--text)}
.project__mat{
  font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--text-3);margin-bottom:20px;
}
.project__foot{margin-top:auto;display:flex;align-items:flex-end;justify-content:space-between;gap:14px;padding-top:20px;border-top:1px solid var(--line)}
.project__price b{display:block;font-family:'Montserrat',sans-serif;font-weight:700;font-size:23px;letter-spacing:-.01em}
.project__price span{font-size:13px;color:var(--text-3)}
.project__link{font-size:13px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--accent);white-space:nowrap}

/* ============================================================
   ТЕХНОЛОГИИ
   ============================================================ */
.tech{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
@media(max-width:900px){.tech{grid-template-columns:1fr}}
.tech__card{background:var(--white);display:flex;flex-direction:column}
.tech__media{aspect-ratio:16/10;overflow:hidden}
.tech__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease-3)}
.tech__card:hover .tech__media img{transform:scale(1.05)}
.tech__body{padding:30px 30px 34px;border:1px solid var(--line);border-top:none;flex:1;display:flex;flex-direction:column}
.tech__price{font-family:'Montserrat',sans-serif;font-weight:700;font-size:26px;color:var(--accent);margin:14px 0 12px;letter-spacing:-.01em}
.tech__list{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);font-size:15px;line-height:28px;color:var(--text-2)}
.tech__list li{list-style:none;padding-left:20px;position:relative}
.tech__list li::before{content:'';position:absolute;left:0;top:13px;width:8px;height:1px;background:var(--accent)}

/* ============================================================
   ЭТАПЫ
   ============================================================ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:rgba(255,255,255,.1)}
@media(max-width:900px){.steps{grid-template-columns:1fr}}
.step{background:var(--ink);padding:38px 34px 42px;position:relative}
.step__num{
  font-family:'Montserrat',sans-serif;font-weight:700;font-size:15px;
  color:var(--accent);letter-spacing:.1em;margin-bottom:20px;display:block;
}
.step h3{font-family:'Montserrat',sans-serif;font-weight:700;font-size:20px;margin-bottom:12px}
.step p{font-size:15px;line-height:26px;color:rgba(255,255,255,.6)}
.step__time{margin-top:20px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.38)}

/* ============================================================
   ГАРАНТИИ / ДОВЕРИЕ
   ============================================================ */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
@media(max-width:900px){.trust{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.trust{grid-template-columns:1fr}}
.trust__item{padding-top:24px;border-top:2px solid var(--accent)}
.trust__item h3{font-family:'Montserrat',sans-serif;font-weight:700;font-size:18px;margin-bottom:10px}
.trust__item p{font-size:15px;line-height:26px;color:var(--text-2)}

/* ---------- ипотека ---------- */
.mortgage{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
@media(max-width:900px){.mortgage{grid-template-columns:1fr;gap:36px}}
.mortgage__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.mortgage__rates{display:flex;gap:40px;margin:30px 0 34px;flex-wrap:wrap}
.mortgage__rate b{display:block;font-family:'Montserrat',sans-serif;font-weight:700;font-size:40px;color:var(--accent);letter-spacing:-.02em;line-height:1.1}
.mortgage__rate span{font-size:14px;color:var(--text-2)}

/* ---------- ход строительства ---------- */
.progress{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
@media(max-width:900px){.progress{grid-template-columns:1fr}}
.progress__item img{width:100%;aspect-ratio:3/2;object-fit:cover}
.progress__meta{display:flex;justify-content:space-between;gap:14px;margin-top:16px;font-size:14px}
.progress__meta b{font-weight:600}
.progress__meta span{color:var(--text-3)}

/* ---------- отзывы ---------- */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
@media(max-width:900px){.reviews{grid-template-columns:1fr}}
.review{background:var(--white);border:1px solid var(--line);padding:34px 30px}
.review__stars{color:var(--accent);letter-spacing:.2em;margin-bottom:18px;font-size:15px}
.review p{font-size:16px;line-height:29px;color:var(--text-2);margin-bottom:22px}
.review__who{display:flex;flex-direction:column;gap:2px;padding-top:18px;border-top:1px solid var(--line)}
.review__who b{font-weight:600;font-size:16px}
.review__who span{font-size:14px;color:var(--text-3)}

/* ============================================================
   ФОРМА ЗАЯВКИ
   ============================================================ */
.lead{position:relative;overflow:hidden}
.lead__grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
@media(max-width:900px){.lead__grid{grid-template-columns:1fr;gap:40px}}
.lead__benefits{margin-top:30px;display:flex;flex-direction:column;gap:14px}
.lead__benefit{display:flex;gap:14px;align-items:flex-start;font-size:16px;line-height:27px;color:rgba(255,255,255,.72)}
.lead__benefit i{color:var(--accent);font-style:normal;font-weight:700}
.form{background:var(--white);padding:40px}
.form__row{margin-bottom:18px}
.form__row label{display:block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);margin-bottom:8px}
.form__row input,.form__row select{
  width:100%;padding:15px 18px;border:1px solid var(--line);background:var(--sand);
  transition:border-color .35s var(--ease-1),background .35s var(--ease-1);
}
.form__row input:focus,.form__row select:focus{outline:none;border-color:var(--accent);background:#fff}
.form__agree{display:flex;gap:10px;font-size:13px;line-height:20px;color:var(--text-3);margin:18px 0 22px}
.form__ok{
  display:none;padding:20px;background:var(--accent-soft);
  border-left:3px solid var(--accent);font-size:16px;line-height:26px;
}
.form__ok.is-on{display:block}

/* ============================================================
   ФУТЕР
   ============================================================ */
.footer{background:var(--ink);color:#fff;padding:100px 0 50px}
.footer__grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:50px}
@media(max-width:900px){.footer__grid{grid-template-columns:1fr;gap:40px}}
.footer h4{font-size:13px;letter-spacing:.18em;text-transform:uppercase;margin-bottom:24px;color:rgba(255,255,255,.5)}
.footer__phone{font-family:'Montserrat',sans-serif;font-weight:700;font-size:28px;letter-spacing:-.01em;display:block;margin-bottom:10px}
.footer__mail{color:var(--accent);border-bottom:1px solid currentColor}
.footer__nav{display:flex;flex-direction:column;gap:12px;color:rgba(255,255,255,.7)}
.footer__nav a:hover{color:#fff}
.footer__claim{color:rgba(255,255,255,.6);font-size:16px;line-height:28px;margin:22px 0 0;max-width:300px}
.footer__bottom{
  margin-top:70px;padding-top:28px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;
  font-size:14px;color:rgba(255,255,255,.4);
}

/* закреплённая кнопка на мобильных — не терять заявки */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:95;display:none;
  padding:12px 16px;background:var(--white);box-shadow:0 -1px 0 var(--line);
  gap:10px;
}
.sticky-cta .btn{flex:1;justify-content:center;padding:15px 10px;font-size:13px}
@media(max-width:768px){.sticky-cta{display:flex}body{padding-bottom:74px}}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal,.split__char{opacity:1;transform:none;clip-path:none}
}