/* ============================================================
   ЗЕРКАЛА ПРО — дизайн по референсу Apple (DESIGN.md)
   Светлая система: один синий акцент, hairline-границы,
   пилюли 980px, карточки 8px, без теней (кроме фото товаров).
   ============================================================ */
:root{
  /* Цвета — токены DESIGN.md */
  --color-apple-blue:#0071e3;
  --color-link-blue:#0066cc;
  --color-signal-blue:#2997ff;
  --color-carbon:#1d1d1f;
  --color-frost:#f5f5f7;
  --color-ice:#f4f8fb;
  --color-smoke:#333333;
  --color-graphite:#474747;
  --color-ash:#707070;
  --color-mist:#858585;
  --color-onyx:#000000;
  --color-pebble:#e2e2e5;

  /* Типографика */
  --font-sf-pro-display:-apple-system,BlinkMacSystemFont,'SF Pro Display','SF Pro Text','Inter',ui-sans-serif,system-ui,'Segoe UI',Roboto,sans-serif;
  --font-sf-pro-text:-apple-system,BlinkMacSystemFont,'SF Pro Text','SF Pro Display','Inter',ui-sans-serif,system-ui,'Segoe UI',Roboto,sans-serif;

  /* Семантические переменные (обратная совместимость с разметкой) */
  --ink:var(--color-carbon);
  --graphite:#3a3a3c;
  --warm:var(--color-frost);
  --stone:#e8e8ed;
  --line:#e5e5e7;
  --metal:#86868b;
  --paper:#ffffff;
  --gold:#ff9f0a;
  --serif:var(--font-sf-pro-display);
  --sans:var(--font-sf-pro-text);
  --ease:cubic-bezier(.2,.8,.2,1);

  /* Масштаб шрифтов — DESIGN.md */
  --text-caption:12px;
  --text-body-sm:14px;
  --text-body:17px;
  --text-subheading:21px;
  --text-heading-sm:28px;
  --text-heading:40px;
  --text-heading-lg:44px;
  --text-display:56px;

  /* Отступы */
  --spacing-4:4px;--spacing-8:8px;--spacing-12:12px;--spacing-16:16px;
  --spacing-20:20px;--spacing-24:24px;--spacing-40:40px;
  --spacing-48:48px;--spacing-56:56px;

  /* Скругления */
  --radius-cards:8px;
  --radius-images:8px;
  --radius-inputs:8px;
  --radius-buttons:980px;
  --radius-tags:980px;

  /* Единственная тень — для фотографий товаров */
  --shadow-xl:rgba(0,0,0,.22) 3px 5px 30px 0px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;padding-bottom:76px;color:var(--ink);background:var(--paper);font-family:var(--sans);font-size:16px;line-height:1.5;letter-spacing:-.011em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
.container{width:min(1240px,calc(100% - 48px));margin:auto}
.eyebrow{display:flex;align-items:center;gap:10px;margin:0 0 18px;color:#6e6e73;font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:600}
.eyebrow:before{content:'';width:28px;height:1px;background:currentColor}
.display{font-family:var(--serif);font-size:clamp(40px,4.6vw,64px);line-height:1.08;letter-spacing:-.02em;font-weight:600}
.section{padding:112px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:36px;margin-bottom:44px}
.section-head h2{max-width:700px;margin:0}
.section-copy{max-width:360px;color:#6e6e73;margin:0;font-size:15px;line-height:1.5}
.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:var(--radius-tags);padding:8px 14px;font-size:12px;font-weight:600;color:var(--ink)}
.button{display:inline-flex;justify-content:center;align-items:center;gap:12px;min-height:50px;padding:0 26px;border:1px solid transparent;background:var(--color-apple-blue);color:#fff;border-radius:var(--radius-buttons);transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);font-size:16px;font-weight:400;letter-spacing:-.011em}
.button:hover{background:#0077ed}
.button--light{background:transparent;color:var(--color-link-blue);border-color:var(--color-link-blue)}
.button--light:hover{background:var(--color-link-blue);color:#fff}
.button svg,.round-arrow svg{width:17px;height:17px;transition:transform .35s var(--ease)}
.button:hover svg,.round-arrow:hover svg{transform:translateX(3px)}
.skip-link{position:absolute;left:-999px;top:0;background:#fff;padding:12px;color:var(--ink);z-index:99}
.skip-link:focus{left:12px}

/* ---------- Шапка ---------- */
.topline{background:var(--color-carbon);color:#f5f5f7;padding:10px 0;font-size:12px;letter-spacing:.02em}
.topline .container{display:flex;justify-content:space-between;gap:16px}
.topline span{opacity:.8}
.topline a{color:var(--color-signal-blue);font-size:12px}
.topline a:hover{color:#66b4ff}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;z-index:20}
.logo{font-size:16px;letter-spacing:.14em;font-weight:700;white-space:nowrap;color:var(--ink)}
.nav-links{display:flex;gap:30px;font-size:13px;font-weight:400}
.nav-links a{position:relative;color:var(--ink)}
.nav-links a:after{content:'';position:absolute;bottom:-6px;left:0;width:0;height:1px;background:var(--ink);transition:width .3s}
.nav-links a:hover:after{width:100%}
.nav-contact{text-align:right;font-size:12px}
.nav-contact a{font-weight:600;font-size:14px;color:var(--color-link-blue)}
.nav-contact a:hover{color:var(--color-apple-blue)}
.nav-contact span{display:block;color:#86868b;font-size:12px;margin-top:2px}
.menu-button{display:none;border:0;background:transparent;color:var(--ink);padding:8px}

/* ---------- Hero ---------- */
.hero{min-height:730px;position:relative;background:#202020;color:#fff;overflow:hidden}
.hero-bg{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:auto;height:100%;max-width:100%;object-fit:contain;object-position:center}
.hero:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.62) 0%,rgba(0,0,0,.32) 45%,rgba(0,0,0,.06) 75%)}
.hero .container{position:relative;z-index:1;min-height:730px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:62px}
.hero-content{max-width:720px}
.hero .eyebrow{color:rgba(255,255,255,.65)}
.hero .eyebrow:before{background:rgba(255,255,255,.55)}
.hero h1{margin:0 0 24px;font-family:var(--serif);font-weight:600;font-size:clamp(44px,6vw,76px);line-height:1.04;letter-spacing:-.02em}
.hero p{font-size:19px;font-weight:300;max-width:520px;color:rgba(255,255,255,.88);margin:0 0 34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero .button--light{border-color:rgba(255,255,255,.75);color:#fff;background:transparent}
.hero .button--light:hover{background:rgba(255,255,255,.16);border-color:#fff}
.hero-note{position:absolute;right:0;bottom:64px;width:170px;font-size:12px;line-height:1.5;color:rgba(255,255,255,.6);padding-left:16px;border-left:1px solid rgba(255,255,255,.35)}
.scroll-cue{position:absolute;left:0;bottom:64px;writing-mode:vertical-rl;letter-spacing:.16em;font-size:11px;text-transform:uppercase;color:rgba(255,255,255,.55);display:flex;gap:12px;align-items:center}
.scroll-cue:after{content:'';height:40px;width:1px;background:rgba(255,255,255,.5)}

/* ---------- Intro ---------- */
.intro{display:grid;grid-template-columns:1fr 1.12fr;gap:clamp(48px,10vw,140px);align-items:end;padding:72px 0}
.intro h2{margin:0;font:600 clamp(34px,4vw,54px)/1.12 var(--serif);letter-spacing:-.018em}
.intro .lead{font-size:21px;font-weight:300;color:var(--graphite);margin:0 0 30px}
.text-link{font-size:16px;font-weight:500;display:inline-flex;gap:8px;align-items:center;color:var(--color-link-blue);border-bottom:0;padding:0}
.text-link:hover{color:var(--color-apple-blue);text-decoration:underline;text-underline-offset:4px}
.text-link:hover svg{transform:translateX(4px)}
.text-link svg{width:16px;transition:transform .2s}

/* ---------- Видео ---------- */
.video-section{background:#fff}
.video-frame{margin:0;border-radius:var(--radius-images);overflow:hidden;background:var(--color-carbon);position:relative;box-shadow:var(--shadow-xl)}
.video-player{display:block;width:100%;max-height:78vh;object-fit:contain;background:#000}
.video-caption{margin:0;padding:16px 20px;font-size:12px;color:#86868b;background:var(--color-frost);border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}
@media(max-width:560px){.video-caption{flex-direction:column;align-items:flex-start}}

/* ---------- Товары ---------- */
.products{background:var(--color-frost)}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.product{min-height:380px;background:var(--stone);border-radius:var(--radius-images);position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;padding:26px}
.product img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.product:after{content:'';position:absolute;inset:auto 0 0;height:62%;background:linear-gradient(to top,rgba(0,0,0,.55),transparent)}
.product:hover img{transform:scale(1.05)}
.product:nth-child(2) img,.product:nth-child(6) img{object-position:70% center}
.product:nth-child(3) img,.product:nth-child(7) img{object-position:35% center}
.product:nth-child(4) img,.product:nth-child(8) img{object-position:84% center}
.product-copy{position:relative;z-index:1;color:#fff}
.product h3{font:600 24px/1.15 var(--serif);letter-spacing:-.015em;margin:0 0 10px}
.product p{font-size:14px;font-weight:300;line-height:1.5;color:rgba(255,255,255,.85);margin:0 0 18px;max-width:250px}
.product .text-link{color:#fff;border:1px solid rgba(255,255,255,.7);border-radius:var(--radius-tags);padding:8px 14px;font-size:13px;font-weight:400;width:fit-content;justify-content:center;background:transparent;text-decoration:none}
.product .text-link:hover{background:#fff;color:var(--color-carbon);text-decoration:none}
.product .text-link svg{width:13px}

/* ---------- Цифры ---------- */
.numbers{background:var(--color-carbon);color:#fff;padding:56px 0}
.numbers-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:22px}
.numbers .display{font-size:44px;margin:0;color:#fff}
.numbers p{color:#86868b;font-size:13px;margin:10px 0 0}
.numbers-label{font:600 clamp(24px,3vw,34px)/1.15 var(--serif);letter-spacing:-.015em;max-width:330px;color:var(--color-frost)}
.numbers-label strong{font-weight:600;color:var(--color-signal-blue)}

/* ---------- Преимущества ---------- */
.benefits-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.benefit{min-height:200px;padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .3s}
.benefit:hover{background:var(--color-frost)}
.benefit .number{font-size:12px;font-weight:600;color:#86868b}
.benefit h3{font:600 21px/1.25 var(--serif);letter-spacing:-.012em;margin:42px 0 0;max-width:230px}

/* ---------- Галерея ---------- */
.gallery{background:var(--color-frost);color:var(--ink)}
.gallery .eyebrow{color:#6e6e73}
.gallery .section-copy{color:#6e6e73}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 28px}
.filter{border:1px solid var(--line);background:transparent;color:var(--ink);border-radius:var(--radius-tags);padding:9px 16px;font-size:13px;transition:.25s}
.filter:hover{border-color:#86868b}
.filter.active{background:var(--color-apple-blue);color:#fff;border-color:var(--color-apple-blue)}
.masonry{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:96px;gap:12px}
.project{position:relative;overflow:hidden;background:var(--stone);border:0;padding:0;text-align:left;grid-column:span 4;grid-row:span 4;color:#fff;border-radius:var(--radius-images)}
.project--wide{grid-column:span 8;grid-row:span 5}
.project--tall{grid-row:span 6}
.project img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease),filter .4s}
.project:after{content:'';position:absolute;inset:auto 0 0;height:42%;background:linear-gradient(to top,rgba(0,0,0,.5),transparent);opacity:1;border-radius:var(--radius-images)}
.project:nth-child(2) img,.project:nth-child(6) img{object-position:62% center}
.project:nth-child(3) img,.project:nth-child(5) img{object-position:30% center}
.project:hover img{transform:scale(1.05);filter:brightness(.85)}
.project-info{position:absolute;z-index:1;inset:auto 16px 16px;opacity:0;transform:translateY(10px);transition:.35s var(--ease);font-size:12px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.project:hover .project-info{opacity:1;transform:none}
.project-info strong{font-size:13px;font-weight:600}
.project[hidden]{display:none}

/* ---------- Отзывы (Авито) ---------- */
.avito-reviews{background:#fff}
.avito-reviews .eyebrow{color:#6e6e73}
.avito-reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.avito-review{border:1px solid var(--line);border-radius:var(--radius-cards);padding:28px;margin:0;display:flex;flex-direction:column;gap:14px;background:#fff;transition:border-color .3s,background .3s}
.avito-review:hover{background:#fafafa;border-color:#d2d2d7}
.avito-review-stars{color:var(--gold);font-size:14px;letter-spacing:.15em;line-height:1}
.avito-review blockquote{margin:0;font:400 17px/1.55 var(--sans);letter-spacing:-.011em;color:var(--ink)}
.avito-review figcaption{font-size:11px;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:#86868b;margin-top:auto;padding-top:8px}
.avito-reviews-foot{margin-top:34px;text-align:center}
.avito-reviews-foot .button{background:transparent;color:var(--color-link-blue);border-color:var(--color-link-blue)}
.avito-reviews-foot .button:hover{background:var(--color-link-blue);color:#fff}
@media(max-width:900px){.avito-reviews-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.avito-reviews-grid{grid-template-columns:1fr}}

/* ---------- Цитата ---------- */
.quote{padding:104px 0;background:var(--color-ice)}
.quote-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(38px,8vw,120px);align-items:start}
.quote blockquote{margin:0;font:600 clamp(32px,4.2vw,48px)/1.18 var(--serif);letter-spacing:-.02em}
.quote .eyebrow{color:#6e6e73}
.quote-mark{font-size:56px;line-height:.5;color:var(--color-signal-blue);font-weight:400}
.quote-attribution{border-top:1px solid var(--line);margin-top:36px;padding-top:16px;font-size:13px;color:#6e6e73}
.quote-aside{display:grid;grid-template-columns:1.1fr .9fr;gap:12px;align-items:center}
.quote-aside img{width:100%;height:410px;object-fit:cover;border-radius:var(--radius-images);box-shadow:var(--shadow-xl)}
.quote-aside .caption{align-self:center;font-size:12px;color:#6e6e73;padding-bottom:4px}
.quote-aside .caption strong{display:block;color:var(--ink);font-size:13px;font-weight:600;margin-bottom:6px}

/* ============================================================
   КАЛЬКУЛЯТОР
   ============================================================ */
.calculator{background:var(--color-frost);color:var(--ink);position:relative;overflow:hidden}
.calculator:after{content:'ЗЕРКАЛА ПРО';position:absolute;right:-34px;bottom:-100px;font:600 150px/1 var(--serif);color:rgba(29,29,31,.045);letter-spacing:-.08em;white-space:nowrap}
.calc-grid{position:relative;z-index:1;display:grid;grid-template-columns:.84fr 1.16fr;gap:clamp(44px,8vw,110px)}
.calculator .eyebrow{color:#6e6e73}
.calculator .section-copy{color:#6e6e73;font-size:16px}
.calc-points{list-style:none;padding:0;margin:42px 0 0;border-top:1px solid var(--line)}
.calc-points li{display:flex;gap:14px;padding:15px 0;border-bottom:1px solid var(--line);font-size:13px;color:#515154}
.calc-points span{color:var(--color-signal-blue);font-weight:600}
.calc-form{background:#fff;border-radius:var(--radius-cards);padding:34px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px}
.field label{font-size:12px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:#6e6e73}
.field input,.field select{height:50px;width:100%;border:1px solid var(--line);background:var(--color-frost);padding:0 14px;border-radius:var(--radius-inputs);color:var(--ink);outline:none;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus{border-color:var(--color-apple-blue);box-shadow:0 0 0 2px rgba(0,113,227,.28)}
.options{display:flex;flex-wrap:wrap;gap:8px}
.options label{border:1px solid var(--line);border-radius:var(--radius-tags);padding:9px 14px;font-size:13px;color:var(--ink);background:transparent;cursor:pointer;transition:.2s}
.options label:hover{border-color:#86868b}
.options input{appearance:none;position:absolute;opacity:0;width:1px;height:1px}
.options input:checked + span{font-weight:600}
.options label:has(input:checked){background:var(--color-apple-blue);color:#fff;border-color:var(--color-apple-blue)}
.calc-result{display:none;background:var(--color-frost);border-radius:var(--radius-cards);padding:20px;margin:4px 0 19px;font-size:13px}
.calc-result.show{display:block;animation:resultIn .45s var(--ease)}
@keyframes resultIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.calc-result-label{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#6e6e73}
.calc-result-size{font-size:13px;color:#6e6e73;margin-top:4px}
.calc-result strong{font:600 32px/1 var(--sans);color:var(--ink);display:block;margin-top:10px;letter-spacing:-.015em}
.calc-included{margin-top:14px;border-top:1px solid var(--line);padding-top:12px;font-size:12px;color:#6e6e73;line-height:1.7}
.calc-included .row{display:flex;justify-content:space-between;gap:12px}
.calc-included .row span{white-space:nowrap}
.calc-included .row .dash{flex:1;border-bottom:1px dotted var(--line);height:1em}
.calc-included .row--gold{color:var(--ink);font-weight:600}
.calc-included .row--total{margin-top:6px;padding-top:6px;border-top:1px dotted var(--line);color:var(--ink);font-weight:700}
.calc-included .row--profit{color:var(--ink);font-weight:600}
.calc-cta{display:flex;gap:10px;margin-top:18px}
.calc-btn{flex:1;display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:0 18px;border:1px solid;border-radius:var(--radius-buttons);font-size:13px;font-weight:500;transition:.25s;text-align:center}
.calc-btn-call{background:var(--color-apple-blue);border-color:var(--color-apple-blue);color:#fff}
.calc-btn-call:hover{background:#0077ed}
.calc-btn-max{background:transparent;color:var(--color-link-blue);border-color:var(--color-link-blue)}
.calc-btn-max:hover{background:var(--color-link-blue);color:#fff}
.calc-call-line{font-size:12px;color:#86868b;margin:14px 0 0}
.calc-call-line a{font-weight:600;color:var(--color-link-blue)}
.calc-avito{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:48px;margin-top:12px;padding:0 14px;border:1px solid var(--color-link-blue);border-radius:var(--radius-buttons);background:transparent;font-size:13px;font-weight:500;color:var(--color-link-blue);transition:.25s}
.calc-avito svg{width:16px;height:16px;flex:none}
.calc-avito:hover{background:var(--color-link-blue);color:#fff}

/* Сетка форм */
.options--grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.options--grid label{text-align:center}
.options--checks label{display:inline-flex;align-items:center}
.install-info{font-size:12px;color:#6e6e73;line-height:1.55;margin-top:6px;padding:10px 12px;background:var(--color-frost);border:1px solid var(--line);border-radius:var(--radius-inputs)}

/* Степперы размеров */
.stepper{display:flex;align-items:center;border:1px solid var(--line);background:var(--color-frost);border-radius:var(--radius-inputs);height:50px}
.stepper input{flex:1;min-width:0;height:50px;border:0;background:transparent;box-shadow:none;text-align:center;color:var(--ink);outline:none;font-size:16px;font-weight:600}
.stepper input:focus{border-color:transparent;box-shadow:none}
.stepper input::-webkit-outer-spin-button,.stepper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.stepper input[type=number]{-moz-appearance:textfield}
.stepper-btn{border:0;background:transparent;width:42px;height:50px;font-size:22px;color:#86868b;transition:color .2s}
.stepper-btn:hover{color:var(--color-apple-blue)}
.form-hint{font-size:12px;color:#86868b;margin:2px 0 0}

/* Кромка */
.edge-info{font-size:13px;color:#6e6e73;font-weight:600;margin-bottom:8px}
.edge-info.gold{color:var(--color-apple-blue)}

/* Предпросмотр */
.calc-preview{background:linear-gradient(150deg,#2b2b2e,#151517);border-radius:var(--radius-cards);padding:28px 18px 18px;margin-bottom:24px;text-align:center;position:relative;overflow:hidden}
.calc-preview::before{content:"Предпросмотр";position:absolute;top:12px;left:16px;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.45)}
.mirror-wrap{display:inline-flex;align-items:center;justify-content:center;position:relative;transition:all .4s cubic-bezier(.2,.8,.2,1);filter:drop-shadow(0 14px 28px rgba(0,0,0,.55))}
.mirror-svg{width:100%;height:100%}
.dim-labels{display:flex;justify-content:center;gap:18px;margin-top:14px;font-size:12px;font-weight:600;color:rgba(255,255,255,.8);letter-spacing:.04em}

.calc-form .button{width:100%;border:none}
.form-disclaimer{font-size:11px;color:#86868b;line-height:1.5;margin:13px 0 0}
.form-success{display:none;text-align:center;padding:34px 0}
.form-success.show{display:block}
.form-success h3{font:600 34px/1.1 var(--serif);margin:0 0 12px}
.form-success p{font-size:14px;color:#6e6e73;margin:0}
.hidden{display:none !important}

/* ---------- Процесс ---------- */
.process{background:#fff}
.steps{display:grid;grid-template-columns:repeat(5,1fr);position:relative}
.steps:before{content:'';height:1px;background:var(--line);position:absolute;top:20px;left:0;right:0}
.step{position:relative;padding:0 26px 0 0}
.step:first-child{padding-left:0}
.step-num{width:41px;height:41px;border-radius:50%;background:var(--color-frost);border:1px solid #dcdcdd;color:var(--ink);display:grid;place-items:center;position:relative;font-size:12px;font-weight:600;margin-bottom:44px}
.step h3{font:600 20px/1.25 var(--serif);letter-spacing:-.012em;margin:0 0 10px}
.step p{font-size:14px;line-height:1.55;color:#6e6e73;max-width:200px;margin:0}

/* ---------- О нас ---------- */
.about{background:var(--color-frost)}
.about-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:clamp(38px,7vw,100px);align-items:center}
.about-image{position:relative}
.about-image img{width:100%;aspect-ratio:1.2;object-fit:cover;border-radius:var(--radius-images);box-shadow:var(--shadow-xl)}
.about-stamp{position:absolute;width:140px;height:140px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--ink);right:-30px;bottom:-30px;display:grid;place-items:center;text-align:center;padding:22px;font:600 17px/1.15 var(--serif);letter-spacing:-.02em;transform:rotate(-8deg)}
.about h2{margin:0 0 24px}
.about .lead{font:300 26px/1.3 var(--serif);letter-spacing:-.015em;color:var(--ink);margin:0 0 20px}
.about p:not(.lead){color:#6e6e73;font-size:15px;line-height:1.6;max-width:520px;margin:0 0 22px}
.about .text-link{color:var(--color-link-blue)}
.checks{list-style:none;padding:0;margin:30px 0}
.checks li{border-top:1px solid var(--line);padding:12px 0;font-size:14px;color:var(--graphite)}
.checks li:before{content:'✓';margin-right:12px;color:var(--color-signal-blue);font-weight:600}

/* ---------- Отзывы ---------- */
.reviews{background:#fff}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.review{background:var(--color-frost);border-radius:var(--radius-cards);padding:28px;display:flex;flex-direction:column;min-height:300px}
.review-top{display:flex;justify-content:space-between;font-size:12px;font-weight:600;color:#6e6e73}
.stars{letter-spacing:.12em;color:var(--gold)}
.review blockquote{font:400 20px/1.4 var(--sans);letter-spacing:-.011em;color:var(--ink);margin:32px 0 auto}
.review-client{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px;font-size:13px}
.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(140deg,#e2e2e5,#b0b0b5)}
.review-client strong{font-weight:600}
.review-client span{display:block;color:#86868b;font-size:12px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:.74fr 1.26fr;gap:clamp(42px,10vw,150px)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;display:flex;justify-content:space-between;gap:22px;padding:22px 0;cursor:pointer;font:600 21px/1.25 var(--serif);letter-spacing:-.012em;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:'+';font:300 26px/.9 var(--sans);color:#86868b;transition:.2s}
.faq-item[open] summary:after{content:'−'}
.faq-item p{margin:0 40px 22px 0;max-width:600px;color:#6e6e73;font-size:14px;line-height:1.6}
.faq-aside{background:var(--color-ice);border:1px solid var(--line);border-radius:var(--radius-cards);padding:32px;align-self:start}
.faq-aside h3{font:600 26px/1.2 var(--serif);letter-spacing:-.012em;margin:0 0 14px}
.faq-aside p{color:#6e6e73;font-size:14px;line-height:1.55;margin:0 0 24px}
.faq-aside .button{background:var(--color-apple-blue);color:#fff;border-color:transparent}
.faq-aside .button:hover{background:#0077ed;border-color:transparent}

/* ---------- Контакты / подвал ---------- */
.contact{padding:104px 0 0;background:#fff;color:var(--ink)}
.contact-card{border-top:1px solid var(--line);padding:52px 0;display:grid;grid-template-columns:1.06fr .94fr;gap:64px}
.contact h2{font-size:clamp(36px,4.6vw,58px);letter-spacing:-.02em;margin:0 0 22px}
.contact .lead{color:#6e6e73;font-size:19px;font-weight:300;line-height:1.5;max-width:520px;margin:0 0 32px}
.contact-form{background:var(--color-frost);border-radius:var(--radius-cards);padding:30px;color:var(--ink)}
.contact-form h3{font:600 24px/1.25 var(--serif);letter-spacing:-.012em;margin:0 0 24px}
.contact-form .button{width:100%}
.contact-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:26px;border-top:1px solid var(--line);padding:34px 0 40px;font-size:12px}
.contact-meta span{display:block;color:#86868b;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-bottom:10px}
.contact-meta a{font-size:14px;font-weight:600;display:block;margin-bottom:3px;color:var(--ink)}
.contact-meta a:hover{color:var(--color-apple-blue)}
.footer{border-top:1px solid var(--line);padding:22px 0;background:var(--color-frost);color:#86868b;font-size:12px}
.footer .container{display:flex;justify-content:space-between;gap:16px}
.footer a{color:#515154}
.footer a:hover{color:var(--color-apple-blue)}

/* ---------- Лайтбокс ---------- */
.lightbox{position:fixed;z-index:100;inset:0;background:rgba(0,0,0,.94);display:none;place-items:center;padding:30px}
.lightbox.open{display:grid}
.lightbox img{max-height:88vh;max-width:92vw;object-fit:contain}
.lightbox-close{position:absolute;right:28px;top:23px;background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff;width:44px;height:44px;border-radius:50%;font-size:27px}
.lightbox-close:hover{background:rgba(255,255,255,.12)}
.lightbox-caption{position:absolute;bottom:25px;color:#ddd;font-size:12px}

/* Закреплённая панель внизу */
.action-bar{position:fixed;left:0;right:0;bottom:0;z-index:50;display:flex;gap:10px;padding:12px 20px;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-top:1px solid var(--line)}
.action-bar .button{flex:1;margin:0}
.action-bar .button--bar-call{background:transparent;border:1px solid var(--color-link-blue);color:var(--color-link-blue)}
.action-bar .button--bar-call:hover{background:rgba(0,102,204,.08);color:var(--color-link-blue)}
.action-bar .button--bar-calc{background:var(--color-apple-blue);border-color:var(--color-apple-blue);color:#fff}
.action-bar .button--bar-calc:hover{background:#0077ed}

/* ---------- Адаптивность ---------- */
@media(max-width:900px){
  .nav-links,.nav-contact{display:none}
  .menu-button{display:block}
  .nav-links.open{display:flex;position:absolute;left:0;right:0;top:70px;padding:22px;background:#fff;flex-direction:column;gap:16px;border-top:1px solid var(--line);box-shadow:none}
  .hero,.hero .container{min-height:660px}
  .hero-note,.scroll-cue{display:none}
  .intro,.calc-grid,.about-grid,.contact-card,.faq-grid,.quote-grid{grid-template-columns:1fr;gap:38px}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .benefits-grid{grid-template-columns:repeat(2,1fr)}
  .numbers-grid{grid-template-columns:1.3fr 1fr 1fr}
  .numbers-grid > :first-child{grid-column:span 3}
  .steps{grid-template-columns:repeat(3,1fr);gap:30px}
  .steps:before{display:none}
  .step{padding:0}
  .section{padding:80px 0}
  .about-stamp{right:14px;bottom:14px}
  .gallery .section-head{display:block}
  .gallery .section-copy{margin-top:18px}
  .review-grid{grid-template-columns:1fr}
  .review{min-height:250px}
  .contact{padding-top:72px}
}
@media(max-width:560px){
  .container{width:min(100% - 32px,1240px)}
  .topline .container span{display:none}
  .topline .container{justify-content:center}
  .nav{height:66px}
  .hero,.hero .container{min-height:630px}
  .hero .container{padding-bottom:44px}
  .hero h1{font-size:44px}
  .hero p{font-size:17px}
  .hero-actions{display:grid;grid-template-columns:1fr}
  .button{width:100%}
  .section{padding:64px 0}
  .section-head{display:block;margin-bottom:32px}
  .section-copy{margin-top:16px}
  .product-grid{grid-template-columns:1fr}
  .product{min-height:310px}
  .numbers-grid{grid-template-columns:1fr 1fr}
  .numbers-grid > :first-child{grid-column:span 2}
  .numbers-label{font-size:26px}
  .benefits-grid{grid-template-columns:1fr}
  .benefit{min-height:150px}
  .benefit h3{margin-top:28px}
  .masonry{grid-template-columns:repeat(2,1fr);grid-auto-rows:100px;gap:8px}
  .project{grid-column:span 1;grid-row:span 3}
  .project--wide{grid-column:span 2;grid-row:span 3}
  .project--tall{grid-row:span 4}
  .project-info{opacity:1;transform:none;inset:auto 12px 12px;font-size:11px}
  .project-info strong{font-size:12px}
  .quote{padding:72px 0}
  .quote-aside{grid-template-columns:1fr}
  .quote-aside img{height:260px}
  .quote-aside .caption{padding:0}
  .calc-form{padding:22px 18px}
  .form-row{grid-template-columns:1fr;gap:0}
  .options--grid{grid-template-columns:repeat(2,1fr)}
  .options{gap:6px}
  .options label{padding:8px 10px}
  .calc-result{flex-direction:column;align-items:flex-start}
  .calc-cta{flex-direction:column}
  .steps{grid-template-columns:1fr 1fr;gap:30px 20px}
  .step h3{font-size:19px}
  .step:last-child{grid-column:span 2}
  .about-image img{aspect-ratio:1}
  .about-stamp{width:104px;height:104px;font-size:14px}
  .faq-aside{padding:26px}
  .faq-item summary{font-size:19px}
  .contact-card{padding:38px 0}
  .contact .lead{font-size:17px}
  .contact-meta{grid-template-columns:1fr}
  .footer .container{flex-direction:column}
  .lightbox{padding:14px}
  .lightbox-close{right:14px;top:14px}
}