/* =========================================================
   Тихий Ангел — лендинг
   ========================================================= */

/* Дисплейный шрифт — Oswald, захостен локально (без внешних CDN).
   Вариативный woff2 (веса 400–700), кириллица + латиница. */
@font-face{font-family:"Oswald";font-style:normal;font-weight:200 700;font-display:swap;
  src:url("assets/fonts/oswald-cyrillic.woff2") format("woff2");
  unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116;}
@font-face{font-family:"Oswald";font-style:normal;font-weight:200 700;font-display:swap;
  src:url("assets/fonts/oswald-cyrillic-ext.woff2") format("woff2");
  unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F;}
@font-face{font-family:"Oswald";font-style:normal;font-weight:200 700;font-display:swap;
  src:url("assets/fonts/oswald-latin.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:"Oswald";font-style:normal;font-weight:200 700;font-display:swap;
  src:url("assets/fonts/oswald-latin-ext.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}

:root{
  --dark:#2C333D;
  --dark-2:#242a32;
  --white:#ffffff;
  --faq-bg:#C6C9CA;
  --faq-ans:#444444;
  --accent:#970A18;
  --accent-dark:#770000;
  --muted:rgba(255,255,255,.62);
  --line:rgba(255,255,255,.22);
  --hero-grad:linear-gradient(90deg,#FFF9F9 0%,#799CA9 100%);

  --display:"Oswald",system-ui,"Arial Narrow",sans-serif;
  --body:"Golos Text",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;

  --wrap:1440px;
  --pad:clamp(20px,4vw,80px);
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  margin:0;
  font-family:var(--body);
  color:var(--white);
  background:var(--dark);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  max-width:100%;
}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,p{margin:0}

.wrap{width:100%;max-width:calc(var(--wrap) + var(--pad)*2);margin-inline:auto;padding-inline:var(--pad)}

.section-title{
  font-family:var(--body);
  font-weight:700;
  font-size:clamp(26px,3.2vw,46px);
  line-height:1.1;
  letter-spacing:-.01em;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--body);font-weight:600;
  font-size:clamp(14px,1vw,17px);
  padding:16px 34px;border-radius:2px;
  transition:transform .2s ease,background .2s ease,color .2s ease,opacity .2s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn--red{background:var(--accent);color:#fff}
.btn--red:hover{background:#b30c1d}
.btn--light{background:#fff;color:var(--dark)}
.btn--light:hover{background:#eee}
.btn--ghost{border:1.5px solid var(--line);color:#fff;background:transparent}
.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}

/* ---------- logo ---------- */
.logo{display:inline-flex;align-items:center;gap:14px}
.logo__icon{width:auto;height:46px;filter:drop-shadow(0 1px 2px rgba(0,0,0,.4))}
.logo__text{
  font-family:var(--display);font-weight:600;text-transform:uppercase;
  font-size:24px;line-height:.94;letter-spacing:.01em;color:#fff;
}

/* =========================================================
   HEADER
   ========================================================= */
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(36,42,50,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.header::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,#8f0d18 0%,#600a10 26%,rgba(96,10,16,0) 52%);
  pointer-events:none;
}
.header__inner{
  display:flex;align-items:center;gap:28px;
  min-height:88px;padding-block:10px;
}
.nav{display:flex;gap:30px;margin-left:8px}
.nav a{
  font-weight:500;font-size:15px;color:rgba(255,255,255,.9);
  position:relative;padding:6px 0;transition:color .2s;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .25s ease;
}
.nav a:hover{color:#fff}
.nav a:hover::after{width:100%}

.header__contacts{display:flex;align-items:center;gap:26px;margin-left:auto}
.header__phone{font-weight:700;font-size:clamp(16px,1.3vw,21px);letter-spacing:.01em}
.header__phone:hover{color:#f2c9cd}
.header__city{display:inline-flex;align-items:center;gap:7px;font-weight:500;text-transform:uppercase;letter-spacing:.02em;color:rgba(255,255,255,.85)}
.header__city svg{color:var(--accent);flex:none}

.burger{display:none;width:44px;height:44px;flex:none;flex-direction:column;justify-content:center;gap:6px;margin-left:auto}
.burger span{display:block;height:2px;width:26px;background:#fff;margin-inline:auto;transition:.28s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* =========================================================
   HERO
   ========================================================= */
.hero{background:var(--dark);position:relative}
.hero__inner{
  display:grid;grid-template-columns:1fr 1fr;gap:0;align-items:stretch;
  min-height:min(78vh,760px);
}
.hero__left{position:relative;padding:clamp(30px,5vw,70px) clamp(24px,3vw,60px) clamp(30px,5vw,70px) 0;display:flex;flex-direction:column;justify-content:center}
.hero__cupid{
  position:absolute;left:-4%;bottom:0;top:auto;
  height:92%;width:auto;z-index:2;
  filter:drop-shadow(0 30px 60px rgba(0,0,0,.5));
  pointer-events:none;
}
.hero__title{
  position:relative;z-index:1;
  font-family:var(--display);font-weight:300;text-transform:uppercase;
  text-align:right;letter-spacing:.005em;
  margin-bottom:clamp(16px,2vw,30px);
}
.hero__title-line{display:block;line-height:1.14;
  /* градиент + зернистый noise поверх (как в Figma) */
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E"),
    var(--hero-grad);
  background-repeat:repeat,no-repeat;
  background-size:160px 160px,100% 100%;
  background-blend-mode:soft-light;
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero__title-line--1{font-size:clamp(60px,11vw,200px)}
.hero__title-line--2{font-size:clamp(42px,7.6vw,142px)}
.hero__subtitle{
  position:relative;z-index:3;
  text-align:right;font-weight:500;
  font-size:clamp(15px,1.35vw,22px);line-height:1.35;
  max-width:520px;margin-left:auto;color:#e9edf0;
}
.hero__btn{position:relative;z-index:3;align-self:flex-end;margin-top:clamp(22px,3vw,44px);min-width:280px;padding-block:20px}

.hero__media{position:relative;overflow:hidden;background:#1b2027}
.hero__video{width:100%;height:100%;object-fit:cover;min-height:340px}

/* play button (shared) */
.play-btn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:clamp(64px,6vw,104px);aspect-ratio:1;border-radius:50%;
  background:rgba(255,255,255,.16);backdrop-filter:blur(4px);
  color:#fff;display:grid;place-items:center;z-index:4;
  border:2px solid rgba(255,255,255,.7);transition:.25s;
}
.play-btn svg{width:42%}
.play-btn:hover{background:var(--accent);border-color:var(--accent);transform:translate(-50%,-50%) scale(1.06)}
[data-video].is-playing .play-btn{opacity:0;pointer-events:none}

/* =========================================================
   GEOGRAPHY
   ========================================================= */
.geo{position:relative;padding:clamp(70px,9vw,150px) 0;overflow:hidden;text-align:center}
.geo__map{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:min(1180px,92%);opacity:.10;filter:grayscale(1) brightness(2);
  pointer-events:none;
}
.geo__title{
  position:relative;
  font-family:var(--display);
  font-size:clamp(38px,6vw,92px);line-height:1;letter-spacing:.01em;
  text-transform:uppercase;
  max-width:1100px;margin-inline:auto;color:#fff;
}

/* =========================================================
   FEATURES
   ========================================================= */
.features{padding:clamp(40px,5vw,80px) 0 clamp(50px,6vw,90px)}
.features__grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:0;
}
.features__grid>*{min-width:0}
.hero__inner>*{min-width:0}
.reliability>*{min-width:0}
.f-intro{grid-column:1 / 3;grid-row:1;padding:0 40px 30px 0}
.f-intro .section-title{margin-bottom:20px}
.f-intro__text{color:var(--muted);font-weight:500;font-size:clamp(14px,1.05vw,17px);line-height:1.5;max-width:640px}

.f-card{
  border:1px solid var(--line);
  padding:clamp(22px,2vw,34px);
  min-height:230px;display:flex;flex-direction:column;
  background:rgba(255,255,255,.012);
}
.f-card__head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:auto}
.f-card__num{font-family:var(--display);font-size:clamp(34px,3vw,56px);line-height:.8;color:#fff}
.f-card__label{font-weight:700;font-size:clamp(19px,1.5vw,26px);line-height:1.12;max-width:70%}
.f-card__text{color:var(--muted);font-weight:500;font-size:14px;line-height:1.5;margin-top:26px}

/* 01 big media card */
.f-01{grid-column:1 / 3;grid-row:2;flex-direction:row;padding:0;overflow:hidden}
.f-01__media{position:relative;flex:1 1 66%;min-height:330px;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;padding:clamp(22px,2vw,34px)}
.f-01__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.f-01__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,24,30,.35),rgba(20,24,30,.78));z-index:1}
.f-01 .f-card__head,.f-01 .f-card__text{position:relative;z-index:2}
.f-01 .f-card__label{max-width:100%}
.f-01 .f-card__text{max-width:560px}
.f-01__cta{
  flex:1 1 34%;background:var(--accent);color:#fff;
  font-weight:600;font-size:clamp(15px,1.2vw,19px);
  display:grid;place-items:center;padding:20px;transition:background .2s;
}
.f-01__cta:hover{background:#b30c1d}

/* what is quiet walls */
.f-what{grid-column:3;grid-row:1 / 3;position:relative;border:1px solid var(--line);overflow:hidden;min-height:330px}
.f-what__video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.f-what__overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-start;align-items:center;text-align:center;padding:clamp(26px,3vw,42px) 24px;background:linear-gradient(180deg,rgba(20,24,30,.55),rgba(20,24,30,.35) 40%,rgba(20,24,30,.55));pointer-events:none}
.f-what .play-btn{pointer-events:auto}
.f-what.is-playing .f-what__overlay{background:none}
.f-what.is-playing .f-what__title{opacity:0}
.f-what__title{font-family:var(--display);font-size:clamp(26px,2.4vw,40px);line-height:1;text-transform:uppercase;transition:opacity .25s;text-shadow:0 2px 12px rgba(0,0,0,.6)}

.f-02{grid-column:1;grid-row:3}
.f-03{grid-column:2;grid-row:3}
.f-04{grid-column:3;grid-row:3}
.f-05{grid-column:1;grid-row:4}

/* 06 big number */
.f-06{grid-column:2 / 4;grid-row:4;border:1px solid var(--line);position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}
.f-06__num{font-family:var(--display);font-size:clamp(120px,15vw,230px);line-height:.8;color:#fff}
.f-06__label{position:absolute;left:clamp(22px,2vw,34px);bottom:clamp(18px,1.6vw,26px);font-weight:700;font-size:clamp(18px,1.5vw,26px)}

.reliability{display:grid;grid-template-columns:1fr 2fr;gap:clamp(20px,4vw,80px);margin-top:clamp(40px,5vw,72px);align-items:start}
.reliability__title{font-family:var(--display);font-size:clamp(22px,2vw,32px);line-height:1.05;text-transform:uppercase;letter-spacing:.02em}
.reliability__text{color:var(--muted);font-weight:500;font-size:clamp(14px,1.05vw,17px);line-height:1.5;max-width:640px}

/* =========================================================
   STAGES
   ========================================================= */
.stages{padding:clamp(40px,5vw,90px) 0 clamp(60px,7vw,110px)}
.stages__title{text-align:right;text-transform:uppercase;font-family:var(--display);font-weight:400;font-size:clamp(34px,5.2vw,74px);line-height:1;letter-spacing:.01em;margin-bottom:clamp(30px,5vw,70px)}
.stages__diagram{position:relative;max-width:1000px;margin:0 auto;padding:40px 0}
.stages__img{width:100%;height:auto}
.stage-dot{position:absolute;left:var(--x);top:var(--y);transform:translate(-50%,-50%);z-index:2}
.stage-dot__point{
  display:block;width:18px;height:18px;border-radius:50%;
  background:#fff;border:4px solid var(--accent);box-shadow:0 0 0 4px rgba(151,10,24,.25);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(151,10,24,.25)}50%{box-shadow:0 0 0 10px rgba(151,10,24,.05)}}
.stage-dot__label{
  position:absolute;white-space:nowrap;font-weight:600;font-size:clamp(14px,1.1vw,19px);
  padding:2px 0;
}
.stage-dot--frame .stage-dot__label{left:32px;top:-4px}
.stage-dot--membrane .stage-dot__label{left:32px;top:-4px}
.stage-dot--textile .stage-dot__label{right:32px;top:-4px;text-align:right}
.stage-dot--trim .stage-dot__label{left:-8px;top:28px;white-space:normal;width:180px}
.stages__list{display:none}

/* =========================================================
   PORTFOLIO / CAROUSEL
   ========================================================= */
.portfolio{padding:clamp(20px,3vw,40px) 0 clamp(60px,7vw,110px)}
.portfolio__title{text-align:center;text-transform:uppercase;font-family:var(--display);font-weight:400;font-size:clamp(34px,4.6vw,68px);line-height:1;margin-bottom:clamp(30px,4vw,56px)}
.carousel{position:relative;display:flex;align-items:center;gap:clamp(10px,2vw,28px)}
.carousel__viewport{overflow:hidden;flex:1;--slide:377px;--gap:13px}
.carousel__track{display:flex;gap:var(--gap);will-change:transform}
.carousel__slide{flex:0 0 var(--slide);aspect-ratio:1;background:#1b2027;overflow:hidden}
.carousel__slide img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.carousel__slide:hover img{transform:scale(1.05)}
.carousel__arrow{flex:none;width:clamp(42px,4vw,56px);aspect-ratio:1;border-radius:50%;border:1.5px solid var(--line);color:#fff;display:grid;place-items:center;transition:.22s}
.carousel__arrow svg{width:46%}
.carousel__arrow:hover{background:var(--accent);border-color:var(--accent)}
.portfolio__more{margin-top:clamp(30px,4vw,54px);text-align:center}
.portfolio__more .btn{min-width:300px;padding-block:18px}

/* =========================================================
   REVIEWS
   ========================================================= */
.reviews{padding:clamp(20px,3vw,40px) 0 clamp(70px,8vw,120px)}
.reviews__title{text-align:center;text-transform:uppercase;font-family:var(--display);font-weight:400;font-size:clamp(34px,4.6vw,68px);line-height:1;margin-bottom:clamp(26px,3.5vw,48px)}
.reviews__media{position:relative;max-width:1000px;margin:0 auto;aspect-ratio:16/9;background:#1b2027;border:1px solid var(--line);overflow:hidden;border-radius:2px}
.reviews__video{width:100%;height:100%;object-fit:cover}

/* =========================================================
   FAQ
   ========================================================= */
.faq{background:var(--faq-bg);color:var(--dark)}
.faq .wrap{max-width:calc(1250px + var(--pad)*2)}
.faq__tab{position:relative;background:var(--dark);margin-top:-1px}
.faq__tab span{
  display:inline-block;background:var(--accent);color:#fff;
  font-weight:700;text-transform:uppercase;letter-spacing:.04em;
  font-size:clamp(15px,1.3vw,20px);
  padding:16px 70px 16px 0;
  position:relative;
}
.faq__tab{background:var(--accent);height:64px;display:flex;align-items:center}
.faq__tab::after{content:"";position:absolute;right:0;top:0;bottom:0;width:56%;background:var(--dark);clip-path:polygon(18% 0,100% 0,100% 100%,0 100%)}
.faq__tab span{background:none;padding:0;position:relative;z-index:2}
.faq__body{padding:clamp(40px,5vw,60px) 0 clamp(30px,4vw,40px)}
.faq__item{border-bottom:1px solid var(--dark);padding:22px 0}
.faq__item:first-child{padding-top:0}
.faq__item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  font-weight:500;font-size:clamp(17px,1.5vw,24px);line-height:1.25;color:var(--dark);
  transition:opacity .2s;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{opacity:.7}
.faq__chev{width:clamp(26px,2vw,36px);flex:none;transition:transform .3s ease;margin-top:2px}
.faq__item.is-open .faq__chev,.faq__item[open] .faq__chev{transform:rotate(180deg)}
.faq__ans{height:0;overflow:hidden;transition:height .34s ease}
.faq__item[open] .faq__ans{height:auto} /* no-JS fallback */
.faq__ans>p{margin:0;padding-top:16px;max-width:1120px;
  font-weight:500;font-size:clamp(14px,1.05vw,16px);line-height:1.5;color:var(--faq-ans)}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{background:var(--accent);color:#fff}
.footer__inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding:clamp(44px,5vw,72px) 0}
.footer__title{font-family:var(--display);font-size:clamp(34px,4vw,58px);line-height:1;text-transform:uppercase;margin-bottom:10px}
.footer__sub{font-weight:700;font-size:clamp(15px,1.3vw,20px);margin-bottom:clamp(22px,3vw,36px);color:#f6d9dc}
.footer__contact{display:flex;align-items:center;gap:14px;font-weight:600;font-size:clamp(16px,1.4vw,22px);margin-bottom:14px;transition:opacity .2s}
.footer__contact:hover{opacity:.8}
.footer__contact svg{flex:none;opacity:.9}
.footer__right{display:flex;flex-direction:column;align-items:flex-end;justify-content:space-between;gap:26px}
.footer__cta{min-width:250px}
.footer__bottom{border-top:1px solid rgba(255,255,255,.2);padding:20px 0;font-size:13px;color:#f0c3c7}

/* =========================================================
   MODAL
   ========================================================= */
.modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.modal__backdrop{position:absolute;inset:0;background:rgba(10,12,15,.72);backdrop-filter:blur(3px);animation:fade .25s ease}
.modal__dialog{
  position:relative;width:min(1120px,100%);max-height:92vh;overflow:auto;
  background:#14181e url(assets/red-trails.webp) right center/cover no-repeat;
  border-radius:4px;animation:pop .3s ease;box-shadow:0 40px 120px rgba(0,0,0,.6);
}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{opacity:0;transform:translateY(20px) scale(.98)}}
.modal__close{position:absolute;top:16px;right:22px;font-size:38px;line-height:1;color:#fff;z-index:5;opacity:.8;transition:.2s}
.modal__close:hover{opacity:1;transform:rotate(90deg)}
.modal__grid{display:grid;grid-template-columns:320px 1fr;min-height:440px}
.modal__aside{padding:clamp(30px,3vw,48px);display:flex;flex-direction:column;gap:26px;background:linear-gradient(180deg,rgba(20,24,30,.9),rgba(20,24,30,.75))}
.logo--modal .logo__icon{height:54px}
.logo--modal .logo__text{font-size:30px}
.modal__consent{display:flex;gap:12px;font-size:13px;line-height:1.4;color:rgba(255,255,255,.85);cursor:pointer;font-weight:500}
.modal__consent input{margin-top:2px;width:18px;height:18px;flex:none;accent-color:var(--accent)}
.modal__consent.invalid span{color:#ff9aa4}
.modal__consent.invalid input{outline:2px solid #ff5a68;outline-offset:2px}
.modal__main{padding:clamp(30px,3.5vw,56px);display:flex;flex-direction:column;justify-content:center}
.modal__title{font-family:var(--display);font-size:clamp(30px,3.2vw,52px);line-height:1;text-transform:uppercase;margin-bottom:clamp(24px,3vw,40px);max-width:640px}
.modal__form{display:flex;flex-direction:column;gap:16px;max-width:680px}
.field{display:flex;flex-direction:column}
.field input{
  width:100%;padding:20px 26px;border-radius:2px;border:0;
  background:linear-gradient(90deg,#7a7f85,#c9ccce);color:#14181e;
  font-family:var(--body);font-weight:500;font-size:17px;
}
.field input::placeholder{color:#3a3f45}
.field input:focus{outline:2px solid var(--accent);outline-offset:2px}
.field__error{display:none;color:#ff9aa4;font-size:13px;margin-top:6px;font-weight:600}
.field.invalid input{outline:2px solid #ff5a68}
.field.invalid .field__error{display:block}
.modal__submit{margin-top:10px;padding-block:22px;font-size:clamp(15px,1.3vw,19px);font-weight:700}
.modal__success{text-align:center;padding:30px 0;display:flex;flex-direction:column;align-items:center;gap:14px}
.modal__success-icon{width:88px;height:88px;border-radius:50%;background:var(--accent);color:#fff;font-size:46px;display:grid;place-items:center}
.modal__success h3{font-family:var(--display);font-size:44px;text-transform:uppercase}
.modal__success p{color:var(--muted)}
.modal__success .btn{margin-top:12px}

/* =========================================================
   REVEAL ANIMATION
   ========================================================= */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .stage-dot__point{animation:none}
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1180px){
  .nav{display:none}
  .header__contacts .header__city{display:none}
}
@media (max-width:1080px){
  .f-intro{grid-column:1 / -1;grid-row:auto;padding-right:0}
  .f-01{grid-column:1 / -1;grid-row:auto}
  .f-what{grid-column:1 / -1;grid-row:auto;min-height:0;height:clamp(300px,42vw,420px);width:100%}
  .f-02{grid-column:1;grid-row:auto}
  .f-03{grid-column:2;grid-row:auto}
  .f-04{grid-column:1 / -1;grid-row:auto}
  .f-05{grid-column:1;grid-row:auto}
  .f-06{grid-column:2;grid-row:auto}
}
@media (max-width:900px){
  .header__cta{display:none}
  .burger{display:flex}
  .header__contacts{gap:16px;margin-left:auto}
  /* mobile nav panel */
  .nav{
    display:flex;position:fixed;inset:0 0 0 auto;width:min(320px,80vw);
    flex-direction:column;gap:0;padding:100px 32px 40px;
    background:#1b2027;transform:translateX(100%);transition:transform .32s ease;z-index:45;
  }
  .nav.open{transform:none;box-shadow:-20px 0 60px rgba(0,0,0,.5)}
  .nav a{font-size:20px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.08)}

  .hero__inner{grid-template-columns:1fr;min-height:0}
  .hero__left{padding:36px 0 30px;min-height:min(66vh,500px)}
  .hero__cupid{height:auto;width:min(48%,240px);left:-2%;opacity:.92}
  .hero__title,.hero__subtitle{text-align:right}
  .hero__btn{width:100%;min-width:0}
  .hero__media{aspect-ratio:16/10}

  .reliability{grid-template-columns:1fr;gap:16px}

  .stages__diagram .stage-dot{display:none}
  .stages__title{text-align:left}
  .stages__list{display:block;list-style:none;padding:0;margin:8px 0 0;counter-reset:st}
  .stages__list li{
    counter-increment:st;position:relative;padding:22px 0 22px 64px;
    border-bottom:1px solid var(--line);font-weight:600;font-size:18px;
  }
  .stages__list li::before{
    content:counter(st,decimal-leading-zero);position:absolute;left:0;top:16px;
    font-family:var(--display);font-size:40px;color:var(--accent);line-height:1;
  }

  .modal__grid{grid-template-columns:1fr}
  .modal__aside{flex-direction:column}
  .modal__dialog{background-position:center}
}
@media (max-width:680px){
  :root{--pad:18px}
  .features__grid{grid-template-columns:1fr}
  .f-02,.f-03,.f-04,.f-05,.f-06{grid-column:1}
  .f-06{min-height:200px}
  .f-01{flex-direction:column}
  .f-01__cta{padding-block:26px}
  .carousel__viewport{--slide:min(72vw,320px)}
  .footer__inner{flex-direction:column}
  .footer__right{align-items:flex-start}
  .logo__text{font-size:22px}
  .logo__icon{height:40px}
}
@media (max-width:420px){
  .hero__title-line--1{font-size:clamp(64px,20vw,90px)}
  .hero__cupid{width:42%}
}