/* ===== Шрифты (PT Sans, self-hosted) ===== */
@font-face{font-family:"PT Sans";font-weight:400;font-style:normal;font-display:swap;
  src:url(pt-sans-cyrillic-400-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"PT Sans";font-weight:700;font-style:normal;font-display:swap;
  src:url(pt-sans-cyrillic-700-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"PT Sans";font-weight:400;font-style:normal;font-display:swap;
  src:url(pt-sans-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"PT Sans";font-weight:700;font-style:normal;font-display:swap;
  src:url(pt-sans-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* ===== Токены (цвета из оригинала) ===== */
:root{
  --c-dark:#514d49;      /* шапка, карточки */
  --c-dark-2:#4e4a46;    /* блок «о нас» */
  --c-dark-3:#4c4844;    /* аккордеон */
  --c-ink:#313230;       /* кнопки, тёмный текст */
  --c-sand:#9d988a;      /* основной светлый фон */
  --c-sand-2:#979385;
  --c-sand-3:#999486;
  --c-card:#928e80;
  --c-gold:#c0b99c;      /* акцент на тёмном */
  --c-gold-2:#beb69a;
  --c-line:#c5bda0;
  --font:"PT Sans",Arial,sans-serif;
  --header-h:80px;
  --gutter:20px;
}

/* ===== База ===== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h);-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:18px;line-height:1.55;color:var(--c-ink);background:#fff;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid #2015ff;outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter)}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:12px;top:-60px;z-index:2000;background:#fff;color:#000;padding:10px 14px;border-radius:4px;transition:top .2s}
.skip-link:focus{top:12px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}

/* ===== Кнопка ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:60px;padding:0 30px;border:0;border-radius:0;
  background:var(--c-ink);color:#b9b196;font-weight:700;font-size:16px;cursor:pointer;text-align:center;transition:background-color .2s,color .2s}
.btn:hover{background:#000;color:#d6cdaf}

/* ===== Шапка ===== */
.header{position:sticky;top:0;z-index:1000;background:var(--c-dark)}
.header__bar{position:relative;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;
  max-width:1200px;margin:0 auto;padding:0 var(--gutter);min-height:var(--header-h)}
.header__list{display:flex;gap:30px}
.header__list a,.header__phones a{color:var(--c-gold);text-decoration:none;font-size:16px;transition:opacity .2s}
.header__list a:hover,.header__phones a:hover{opacity:.7}
.header__logo{display:block;line-height:0}
.header__logo img{width:70px;height:70px}
.header__contacts{display:flex;align-items:center;justify-content:flex-end;gap:20px}
.header__phones{display:flex;flex-direction:column;text-align:right;line-height:1.25}
.social{display:flex;gap:10px}
.social a{display:block;width:30px;height:30px;transition:opacity .2s}
.social a:hover{opacity:.7}
.social svg{width:100%;height:100%;fill:var(--c-gold)}
.header__call,.burger{display:none}

/* ===== Hero ===== */
.hero{padding:120px 0 90px;background:var(--c-sand) url(../img/hero-bg-1680.webp) center/cover no-repeat}
.hero__grid{display:grid;grid-template-columns:7fr 4fr;gap:0 calc(100%/12);align-items:center}
.hero__logo{width:100%;height:auto}
.hero__card{background:var(--c-card);padding:60px 30px;text-align:center}
.hero__title{font-size:22px;line-height:1.35;font-weight:700;color:#000;margin-bottom:30px}

/* ===== Почему мы ===== */
.why{padding:110px 0;background:#6b6358 url(../img/cover-1680.webp) center/cover no-repeat}
.why__card{max-width:800px;margin:0 auto;padding:50px 60px 60px;background:var(--c-dark);color:var(--c-gold-2)}
.why__title{text-align:center;font-size:30px;font-weight:700;color:var(--c-gold);line-height:1.23}
.why__line{width:50px;height:1px;margin:20px auto 30px;border:0;background:#8b8272}
.why__list{font-size:20px;line-height:1.55;list-style:disc;padding-left:1.2em}
.why__list li+li{margin-top:.35em}

/* ===== Принципы ===== */
.principles{padding:90px 0;background:var(--c-sand-2)}
.principles__title{max-width:900px;margin:0 auto 70px;text-align:center;font-size:30px;line-height:1.3;color:#221e1f}
.principles__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px 30px;text-align:center}
.principles__grid img{width:100px;height:100px;margin:0 auto 20px}
.principles__grid p{font-size:20px;line-height:1.5;color:var(--c-ink)}

/* ===== О нас ===== */
.about{padding:90px 0;background:var(--c-dark-2);color:var(--c-gold)}
.about__grid{display:grid;grid-template-columns:6fr 5fr;gap:0 calc(100%/12);align-items:center}
.collage{display:flex;font-size:0}
.collage__l{width:60%;padding-right:10px}
.collage__r{width:40%;padding-left:10px}
.collage__img{width:100%;object-fit:cover;box-shadow:0 0 15px rgba(0,0,0,.2)}
.collage__img--1{aspect-ratio:1/1.35}
.collage__img--2{aspect-ratio:1/1.2;margin-top:40%}
.collage__b{position:relative;width:100%;margin-top:20px;padding-bottom:100%}
.collage__img--3{position:absolute;top:0;right:50%;width:160%;aspect-ratio:1}
.about__title{font-size:30px;line-height:1.3;font-weight:700;color:#c0b99c}
.about__text p{margin:20px 0 10px;font-size:18px;line-height:1.55}
.about__text .btn{margin-top:20px}

/* ===== Как мы работаем ===== */
.steps{padding:90px 0;background:var(--c-sand)}
.steps__title{text-align:center;font-size:30px;font-weight:700;color:#2e2f2d;margin-bottom:70px}
.steps__list{display:grid;grid-template-columns:repeat(3,1fr);gap:40px 30px}
.steps__list li{display:flex;gap:20px;align-items:flex-start}
.steps__num{flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#2f302e;color:#b9b296;font-weight:700;font-size:18px}
.steps__list h3{font-size:20px;line-height:1.35;color:#2f302e;margin-bottom:12px}
.steps__list p{font-size:20px;line-height:1.5;color:#30312f}

/* ===== Аккордеон ===== */
.accordion{padding:30px 0;background:var(--c-dark-3)}
.acc{border-top:3px solid var(--c-line)}
.acc:last-child{border-bottom:3px solid var(--c-line)}
.acc summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:30px 0;cursor:pointer;list-style:none}
.acc summary::-webkit-details-marker{display:none}
.acc summary h3{font-size:22px;line-height:1.35;color:#aaa595;transition:color .2s}
.acc summary:hover h3,.acc[open] summary h3{color:var(--c-line)}
.acc__icon{position:relative;flex:none;width:24px;height:24px}
.acc__icon::before,.acc__icon::after{content:"";position:absolute;left:1px;right:1px;top:50%;height:3px;margin-top:-1.5px;background:#aaa595;transition:transform .25s,background-color .2s}
.acc__icon::after{transform:rotate(90deg)}
.acc[open] .acc__icon::after{transform:rotate(0)}
.acc summary:hover .acc__icon::before,.acc summary:hover .acc__icon::after{background:var(--c-line)}
.acc__body{padding:0 0 30px;font-size:20px;line-height:1.55;color:var(--c-gold-2);max-width:960px}
.acc__body ul{list-style:disc;padding-left:1.2em}
.acc__body li+li{margin-top:.4em}

/* ===== Контакты ===== */
.contacts{padding:90px 0;background:var(--c-sand-3)}
.contacts__grid{display:grid;grid-template-columns:4fr 8fr;gap:30px calc(100%/24);align-items:center}
.contacts__phones{display:flex;flex-direction:column;font-size:28px;line-height:1.35;font-weight:700}
.contacts__phones a,.contacts__mail a{text-decoration:none;color:var(--c-ink)}
.contacts__phones a:hover,.contacts__mail a:hover{text-decoration:underline}
.contacts__mail{margin-top:30px;font-size:26px;line-height:1.35;font-weight:700;overflow-wrap:anywhere}
.contacts__addr{margin-top:30px;font-style:normal;font-size:20px;line-height:1.55}
.contacts__map{height:400px;background:#e5e3df;box-shadow:0 0 20px rgba(0,0,0,.1)}
.contacts__map iframe{display:block;width:100%;height:100%;border:0}

.footer{padding:24px 0;background:#2f302e;color:#a8a28c;font-size:14px;text-align:center}

/* ===== Модальное окно с формой ===== */
.modal{width:min(600px,calc(100% - 32px));max-height:calc(100dvh - 32px);margin:auto;padding:0;border:0;border-radius:4px;background:#fff;color:#000;overflow:auto;overscroll-behavior:contain}
.modal::backdrop{background:rgba(0,0,0,.6)}
.form{position:relative;padding:50px 50px 40px}
.modal__close{position:absolute;top:10px;right:10px;display:grid;place-items:center;width:44px;height:44px;border:0;background:none;cursor:pointer}
.modal__close svg{width:22px;height:22px;fill:none;stroke:#000;stroke-width:2}
.modal__title{text-align:center;font-size:30px;line-height:1.2;font-weight:700}
.modal__lead{margin:12px 0 28px;text-align:center;font-size:18px;color:#444}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:6px;font-size:16px;font-weight:700}
.field .opt{font-weight:400;color:#666}
.req{color:#b3261e}
.field input,.field textarea{display:block;width:100%;padding:14px 16px;font:inherit;font-size:18px;color:#000;background:#fff;border:1px solid #8f8f8f;border-radius:5px}
.field textarea{resize:vertical;min-height:90px}
.field input:focus,.field textarea:focus{outline:3px solid #2015ff;outline-offset:1px;border-color:#2015ff}
.field.is-invalid input{border-color:#b3261e}
.field__error{min-height:0;margin-top:4px;font-size:14px;color:#b3261e}
.form__hint{margin:-4px 0 16px;font-size:14px;color:#666}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.btn--submit{width:100%;margin-top:8px;background:#000;color:#fff;border-radius:5px;font-size:18px}
.btn--submit:hover{background:#2b2b2b;color:#fff}
.btn--submit[disabled]{opacity:.55;cursor:progress}
.form__status{margin:4px 0 12px;padding:12px 14px;border-radius:5px;font-size:16px}
.form__status.is-ok{background:#e6f4ea;color:#14532d}
.form__status.is-error{background:#fdecea;color:#7a1a14}
.form__consent{margin-top:14px;font-size:13px;line-height:1.4;color:#666;text-align:center}
.form.is-done .form__body>*:not(.form__status){display:none}

/* ===== Планшет ≤ 980px ===== */
@media (max-width:980px){
  :root{--header-h:64px}
  .header__bar{grid-template-columns:auto 1fr auto auto;gap:12px;min-height:var(--header-h)}
  .header__logo{order:1}
  .header__logo img{width:44px;height:44px}
  .header__contacts{display:none}
  .header__call{order:3;display:grid;place-items:center;width:44px;height:44px}
  .header__call svg{width:26px;height:26px;fill:var(--c-gold)}
  .burger{order:4;display:block;position:relative;width:44px;height:44px;padding:0;border:0;background:none;cursor:pointer}
  .burger span{position:absolute;left:8px;right:8px;height:3px;background:var(--c-gold);transition:transform .25s,opacity .2s,top .25s}
  .burger span:nth-child(1){top:14px}.burger span:nth-child(2){top:21px}.burger span:nth-child(3){top:28px}
  .burger[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}
  .burger[aria-expanded="true"] span:nth-child(2){opacity:0}
  .burger[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}
  .header__nav{position:absolute;left:0;right:0;top:100%;display:none;background:var(--c-dark);border-top:1px solid #6a655f;box-shadow:0 10px 20px rgba(0,0,0,.25)}
  .header__nav.is-open{display:block}
  .header__list{flex-direction:column;gap:0;padding:8px var(--gutter) 16px}
  .header__list a{display:block;padding:14px 0;font-size:18px}

  .hero{padding:48px 0 56px}
  .hero__grid{grid-template-columns:1fr;gap:32px}
  .hero__logo{max-width:640px;margin:0 auto}
  .hero__card{padding:40px 24px}
  .why{padding:72px 0}
  .why__card{padding:40px 32px 48px}
  .principles{padding:64px 0}
  .principles__title{margin-bottom:48px;font-size:26px}
  .principles__grid{grid-template-columns:repeat(2,1fr)}
  .about{padding:64px 0}
  .about__grid{grid-template-columns:1fr;gap:48px}
  .collage{max-width:560px;margin:0 auto}
  .steps{padding:64px 0}
  .steps__title{margin-bottom:48px}
  .steps__list{grid-template-columns:1fr}
  .contacts{padding:64px 0}
  .contacts__grid{grid-template-columns:1fr}
}

/* ===== Телефон ≤ 640px ===== */
@media (max-width:640px){
  :root{--gutter:16px}
  body{font-size:17px}
  .hero__title{font-size:20px}
  .btn{width:100%;min-height:56px}
  .why{padding:48px 0}
  .why__card{padding:32px 20px 36px}
  .why__title{font-size:26px}
  .why__list{font-size:18px}
  .principles__title,.about__title,.steps__title,.modal__title{font-size:24px}
  .principles__grid{gap:32px 16px}
  .principles__grid img{width:72px;height:72px;margin-bottom:14px}
  .principles__grid p{font-size:16px}
  .about__text p{font-size:17px}
  /* коллаж: две картинки в ряд, третья на всю ширину */
  .collage{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .collage__l,.collage__r{display:contents}
  .collage__img--2{margin-top:0;height:100%;aspect-ratio:auto}
  .collage__img--1{aspect-ratio:auto;height:100%}
  .collage__b{grid-column:1/-1;margin-top:0;padding-bottom:0}
  .collage__img--3{position:static;width:100%;aspect-ratio:16/9}
  .steps__list p,.steps__list h3{font-size:18px}
  .acc summary{padding:22px 0}
  .acc summary h3{font-size:19px}
  .acc__body{font-size:17px}
  .contacts__phones{font-size:24px}
  .contacts__mail{font-size:20px}
  .contacts__map{height:320px}
  .form{padding:48px 20px 28px}
  .modal{width:calc(100% - 16px);max-height:calc(100dvh - 16px)}
}

/* ===== Параллакс только на десктопе с мышью ===== */
@media (min-width:981px) and (hover:hover) and (prefers-reduced-motion:no-preference){
  .hero{background-attachment:fixed}
  .why{background-attachment:fixed}
}
@media (max-width:800px){
  .hero{background-image:url(../img/hero-bg-800.webp)}
  .why{background-image:url(../img/cover-800.webp)}
}