/* ТЁПЛЫЙ ДОМ: окна и двери. Концепт-сайт, plavsuk.com */

:root {
  --bg: #F5F6F4;          /* снег */
  --card: #FFFFFF;
  --pvc: #DCE1E4;         /* ПВХ-серый: линии, подложки */
  --pvc-2: #EEF1F3;
  --line: #D6DCE0;
  --line-2: #B8C0C6;
  --text: #22262A;        /* графит */
  --muted: #5F6870;
  --honey: #C98A1F;       /* мёд: цены и мелкие акценты */
  --honey-2: #A97015;
  --walnut: #7A5C3E;      /* орех: двери */
  --dark: #22262A;
  --dark-2: #2C3136;
  --dark-line: #3C4249;
  --on-dark: #F5F6F4;
  --on-dark-muted: #A7AEB4;
  --display: 'Bitter', Georgia, serif;
  --sans: 'Rubik', 'Helvetica Neue', Arial, sans-serif;
  --gutter: clamp(20px, 5vw, 72px);
  --maxw: 1300px;
  --head: 74px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --sec: clamp(88px, 10vw, 150px);

  --bk-bg: #FFFFFF; --bk-surface: #F5F6F4; --bk-line: #D6DCE0; --bk-text: #22262A; --bk-muted: #5F6870;
  --bk-accent: #22262A; --bk-accent-ink: #FFFFFF; --bk-hi: #C98A1F; --bk-hi-ink: #FFFFFF; --bk-card-r: 14px;
  --bk-display: 'Bitter', serif; --bk-font: 'Rubik', Arial, sans-serif;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--head) + 12px); }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: clip; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure, fieldset { margin: 0; padding: 0; }
fieldset { border: 0; min-width: 0; }
ul, ol { list-style: none; }
:focus-visible { outline: 2px solid var(--honey); outline-offset: 3px; }
::selection { background: #F3E3C2; }
[hidden] { display: none !important; }
.wrap { width: min(var(--maxw), 100% - var(--gutter) * 2); margin-inline: auto; }
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 200; padding: 10px 16px; background: var(--text); color: #fff; border-radius: 999px; }
.skip:focus { top: 12px; }
body.lock { overflow: hidden; }

/* ---------- типографика ---------- */
.kicker { display: flex; align-items: center; gap: 10px; font: 500 12.5px/1.3 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--honey-2); }
.kicker::before { content: ''; width: 10px; height: 10px; border: 2px solid var(--honey); }
.h2 { font: 600 clamp(2.1rem, 4.4vw, 3.9rem)/1.06 var(--display); letter-spacing: -.01em; }
.h2 em, .h1 em { font-style: normal; color: var(--honey-2); }

/* ---------- кнопки ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 54px; padding: 0 26px; border-radius: 999px; border: 1px solid transparent; font: 500 15.5px/1 var(--sans); white-space: nowrap; transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease); }
.btn svg { width: 18px; height: 18px; transition: transform .3s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn--main { background: var(--text); color: #fff; box-shadow: 0 10px 24px rgba(34, 38, 42, .2); }
.btn--main:hover { background: #000; transform: translateY(-2px); box-shadow: 0 16px 30px rgba(34, 38, 42, .26); }
.btn--line { border-color: var(--line-2); color: var(--text); }
.btn--line:hover { border-color: var(--text); background: var(--card); }
.btn--light { background: #fff; color: var(--text); }
.btn--light:hover { transform: translateY(-2px); }
.btn--sm { min-height: 44px; padding: 0 20px; font-size: 14.5px; }
.btn--block { width: 100%; }

/* ---------- шапка ---------- */
.top { position: fixed; inset: 0 0 auto; z-index: 60; height: var(--head); border-bottom: 1px solid transparent; transition: background .4s var(--ease), border-color .4s, transform .45s var(--ease); }
.top.is-solid { background: rgba(245, 246, 244, .9); border-bottom-color: var(--line); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.top.is-hidden { transform: translateY(-100%); }
.top__in { height: 100%; display: flex; align-items: center; gap: 36px; width: min(1460px, 100% - var(--gutter) * 2); margin-inline: auto; }
.logo { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; }
.logo svg { width: 34px; height: 34px; }
.logo b { font: 600 22px/1 var(--display); letter-spacing: .01em; }
nav.main { display: flex; gap: 26px; margin-left: auto; }
nav.main a { position: relative; padding: 6px 0; font-size: 15px; font-weight: 500; color: var(--muted); transition: color .25s; }
nav.main a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--honey); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease); }
nav.main a:hover, nav.main a.is-active { color: var(--text); }
nav.main a:hover::after, nav.main a.is-active::after { transform: none; }
.burger, .mobile { display: none; }
#mnav { position: absolute; opacity: 0; pointer-events: none; }
@media (max-width: 1080px) {
  nav.main, .top__cta { display: none; }
  .burger { display: flex; margin-left: auto; width: 48px; height: 48px; flex-direction: column; justify-content: center; align-items: center; gap: 7px; cursor: pointer; border: 1px solid var(--line-2); border-radius: 50%; background: var(--card); }
  .burger i { width: 20px; height: 2px; background: var(--text); transition: transform .35s var(--ease); }
  #mnav:checked ~ .burger i:first-child { transform: translateY(4.5px) rotate(45deg); }
  #mnav:checked ~ .burger i:last-child { transform: translateY(-4.5px) rotate(-45deg); }
  #mnav:focus-visible ~ .burger { outline: 2px solid var(--honey); }
  .mobile { display: flex; flex-direction: column; position: fixed; inset: var(--head) 0 0; z-index: 59; padding: 18px var(--gutter) 32px; background: var(--bg); overflow-y: auto; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .35s var(--ease), transform .35s var(--ease), visibility 0s .35s; }
  #mnav:checked ~ .mobile { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
  .mobile nav { display: flex; flex-direction: column; }
  .mobile nav a { font: 600 clamp(24px, 6.4vw, 32px)/1.25 var(--display); padding: 8px 0; border-bottom: 1px solid var(--line); }
  .mobile__cta { display: grid; gap: 12px; margin-top: 24px; }
  .mobile__note { margin-top: auto; padding-top: 22px; font-size: 14px; color: var(--muted); }
  .top.menu-open { background: var(--bg); border-bottom-color: var(--line); }
}

/* ---------- рама: фирменный приём ---------- */
.frame { position: relative; overflow: hidden; background: var(--pvc-2); border: 10px solid #fff; box-shadow: inset 0 0 0 1px var(--line-2), 0 1px 0 0 var(--line-2), 0 24px 48px rgba(34, 38, 42, .12); border-radius: 4px; }
.frame img { width: 100%; height: 100%; object-fit: cover; }
.frame button { display: block; width: 100%; height: 100%; }
.frame--2::after { content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 10px; margin-left: -5px; background: #fff; box-shadow: inset 1px 0 0 var(--line-2), inset -1px 0 0 var(--line-2); pointer-events: none; }
.frame[data-par] img { height: 112%; margin-top: -6%; will-change: transform; }

/* ---------- хиро ---------- */
.hero { position: relative; padding: calc(var(--head) + clamp(36px, 7vh, 80px)) 0 clamp(60px, 8vh, 100px); overflow: clip; background: linear-gradient(180deg, #EEF1F3 0%, var(--bg) 70%); }
.hero__grid { position: relative; display: grid; grid-template-columns: repeat(12, 1fr); gap: 32px; align-items: center; }
.hero__txt { grid-column: 1 / span 6; }
.hero__ph { grid-column: 7 / span 6; position: relative; }
.hero__ph .frame { aspect-ratio: 4 / 3; }
.hero__kicker { display: flex; align-items: center; gap: 10px; font: 500 12.5px/1.3 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--honey-2); margin-bottom: 22px; }
.hero__kicker i { width: 10px; height: 10px; border: 2px solid var(--honey); }
.h1 { font: 600 clamp(2.4rem, 4.3vw, 4.1rem)/1.05 var(--display); letter-spacing: -.012em; }
.h1 .ln { display: block; overflow: hidden; padding: .05em 0; margin: -.05em 0; }
.h1 .ln > span { display: block; }
.hero__lead { margin: 22px 0 0; max-width: 32em; font-size: clamp(16.5px, 1.25vw, 18.5px); color: #3C444B; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero__facts { display: grid; grid-template-columns: repeat(4, auto); justify-content: start; gap: 14px 34px; margin-top: clamp(32px, 4vh, 48px); padding-top: 22px; border-top: 1px solid var(--line-2); }
.hero__facts b { display: block; font: 600 26px/1 var(--display); }
.hero__facts span { font-size: 13.5px; color: var(--muted); }
.hero__tag { position: absolute; left: -14px; bottom: 26px; display: grid; gap: 2px; padding: 12px 16px; background: var(--card); border-left: 4px solid var(--honey); box-shadow: 0 14px 34px rgba(34, 38, 42, .14); }
.hero__tag b { font: 600 16px/1.2 var(--display); }
.hero__tag span { font-size: 13px; color: var(--muted); }
@keyframes hin { from { opacity: 0; transform: translateY(22px); } }
@keyframes hline { from { transform: translateY(105%); } }
html.js .hero [data-in] { animation: hin .75s var(--ease) both; animation-delay: calc(var(--i, 0) * 90ms + 60ms); }
html.js .hero .ln > span { animation: hline .75s var(--ease) both; animation-delay: calc(var(--i, 0) * 90ms + 60ms); }

/* ---------- секции ---------- */
.sec { position: relative; padding-block: var(--sec); }
.sec-head { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px 24px; align-items: end; margin-bottom: clamp(36px, 5vw, 64px); }
.sec-head .kicker { grid-column: 1 / -1; }
.sec-head .h2 { grid-column: 1 / span 7; }
.sec-head > p:last-child { grid-column: 8 / span 5; color: var(--muted); font-size: 16px; }
html.js .rv { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: calc(var(--d, 0) * 90ms); }
html.js .rv.is-in { opacity: 1; transform: none; }
html.js .rvl { display: block; overflow: hidden; padding: .06em 0; margin: -.06em 0; }
html.js .rvl > span { display: block; transform: translateY(105%); transition: transform .75s var(--ease); transition-delay: calc(var(--d, 0) * 90ms); }
html.js .rvl.is-in > span { transform: none; }
.rvl { display: block; }

/* ---------- формы ---------- */
.fld { min-width: 0; }
.fld__t, .fld legend { display: flex; align-items: baseline; gap: 8px; width: 100%; padding: 0; margin-bottom: 10px; font: 500 12.5px/1.3 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.fld__t output { color: var(--text); font: 600 22px/1 var(--display); margin-left: auto; letter-spacing: 0; }
.fld__t small { font-size: 12.5px; letter-spacing: 0; text-transform: none; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.row2--tight { gap: 12px; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.seg label { position: relative; cursor: pointer; min-width: 0; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: flex; flex-direction: column; justify-content: center; min-height: 52px; padding: 9px 12px; border: 1px solid var(--line-2); border-radius: 12px; background: var(--card); font-size: 15px; line-height: 1.25; text-align: center; transition: background .25s, color .25s, border-color .25s; }
.seg span b { font-weight: 500; }
.seg small { font-size: 12.5px; color: var(--muted); margin-top: 3px; }
.seg label:hover span { border-color: var(--text); }
.seg input:checked + span { background: var(--text); color: #fff; border-color: var(--text); }
.seg input:checked + span small { color: rgba(255, 255, 255, .72); }
.seg input:focus-visible + span { outline: 2px solid var(--honey); outline-offset: 2px; }
.range { position: relative; }
.range input { -webkit-appearance: none; appearance: none; width: 100%; height: 44px; background: transparent; margin: 0; cursor: pointer; }
.range input::-webkit-slider-runnable-track { height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--honey) var(--p, 50%), var(--line-2) var(--p, 50%)); }
.range input::-moz-range-track { height: 4px; border-radius: 2px; background: var(--line-2); }
.range input::-moz-range-progress { height: 4px; background: var(--honey); }
.range input::-webkit-slider-thumb { -webkit-appearance: none; width: 26px; height: 26px; margin-top: -11px; border-radius: 50%; background: #fff; border: 3px solid var(--text); box-shadow: 0 4px 12px rgba(34, 38, 42, .25); transition: transform .2s var(--ease); }
.range input::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: #fff; border: 3px solid var(--text); }
.range input:active::-webkit-slider-thumb { transform: scale(1.12); }
.range input:focus-visible { outline: none; }
.range input:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 5px rgba(201, 138, 31, .3); }
.checks { display: flex; flex-wrap: wrap; gap: 6px 26px; }
.check { display: flex; align-items: center; gap: 10px; min-height: 44px; cursor: pointer; font-size: 15px; }
.check input { width: 22px; height: 22px; accent-color: var(--text); }
.inp { position: relative; }
.inp input, .inp textarea { width: 100%; min-height: 56px; padding: 22px 16px 8px; border: 1px solid var(--line-2); border-radius: 12px; background: var(--card); color: var(--text); font-size: 16px; outline: none; transition: border-color .25s, box-shadow .25s; }
.inp textarea { min-height: 76px; resize: vertical; }
.inp label { position: absolute; left: 17px; top: 18px; font-size: 16px; color: var(--muted); pointer-events: none; transform-origin: left top; transition: transform .25s var(--ease), color .25s; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: calc(100% - 34px); }
.inp input:focus, .inp textarea:focus { border-color: var(--text); box-shadow: 0 0 0 4px rgba(34, 38, 42, .1); }
.inp input:focus + label, .inp input:not(:placeholder-shown) + label, .inp textarea:focus + label, .inp textarea:not(:placeholder-shown) + label { transform: translateY(-11px) scale(.76); color: var(--honey-2); }
.inp input::placeholder, .inp textarea::placeholder { color: transparent; }
.inp.is-bad input, .inp.is-bad textarea { border-color: #C9473C; box-shadow: 0 0 0 4px rgba(201, 71, 60, .12); }
.consent { font-size: 13px; color: var(--muted); line-height: 1.5; }
.consent a { color: var(--text); border-bottom: 1px solid var(--line-2); }

/* ---------- калькулятор ---------- */
.calc { background: var(--card); }
.calc__grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: start; }
.calc__form { grid-column: 1 / span 7; display: grid; gap: 28px; }
.calc__out { grid-column: 8 / span 5; position: sticky; top: calc(var(--head) + 24px); display: grid; gap: 16px; }
.scheme { background: var(--bg); border: 1px solid var(--line); border-radius: 16px; padding: 10px; }
.scheme svg { width: 100%; height: auto; }
.out { background: var(--dark); color: var(--on-dark); border-radius: 16px; padding: clamp(22px, 2.2vw, 30px); box-shadow: 0 30px 70px rgba(34, 38, 42, .25); }
.out__k { font: 500 12.5px/1.3 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--on-dark-muted); }
.out__sum { font: 600 clamp(42px, 4vw, 56px)/1 var(--display); margin: 10px 0 14px; font-variant-numeric: tabular-nums; }
.out__sum small { font: 500 15px/1 var(--sans); letter-spacing: .08em; margin-left: 8px; color: var(--on-dark-muted); }
.out__sum span.is-tick { display: inline-block; animation: tick .45s var(--ease); }
@keyframes tick { from { opacity: .3; transform: translateY(6px); } }
.out__list { margin: 0 0 16px; border-top: 1px solid var(--dark-line); }
.out__list li { display: flex; gap: 12px; align-items: baseline; padding: 9px 0; border-bottom: 1px solid var(--dark-line); font-size: 14px; }
.out__list span { color: rgba(245, 246, 244, .8); }
.out__list i { flex: 1; min-width: 12px; border-bottom: 1px dotted var(--dark-line); transform: translateY(-4px); }
.out__list b { font-weight: 500; white-space: nowrap; font-variant-numeric: tabular-nums; }
.out__note { font-size: 13.5px; color: #E8B65A; margin-bottom: 12px; }
.out__note:empty { display: none; }
.out .btn--main { background: var(--honey); box-shadow: none; }
.out .btn--main:hover { background: #D9992A; }
.out__foot { margin-top: 12px; font-size: 13px; color: var(--on-dark-muted); }
.calc__mini { display: none; }

/* ---------- окна ---------- */
.win__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.wc { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: center; }
.wc__ph { aspect-ratio: 4 / 3; }
.wc__ph img { transition: transform .8s var(--ease); }
.wc:hover .wc__ph img { transform: scale(1.04); }
.wc__body { display: grid; gap: 8px; justify-items: start; }
.wc__size { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.wc h3 { font: 600 30px/1.1 var(--display); }
.wc__note { font-size: 15px; color: #3C444B; }
.wc__price { margin-top: 4px; }
.wc__price b { display: block; font: 600 26px/1.1 var(--display); color: var(--honey-2); }
.wc__price span { font-size: 13.5px; color: var(--muted); }
.wc .btn { margin-top: 6px; }
.win__more { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: clamp(36px, 5vw, 64px); }
.pf { display: grid; gap: 6px; padding: 22px 24px; background: var(--card); border-radius: 16px; border: 1px solid var(--line); }
.pf b { font: 600 22px/1.1 var(--display); }
.pf span { font-size: 13.5px; color: var(--muted); }
.pf p { font-size: 15px; color: #3C444B; margin-top: 4px; }
.pf i { font-style: normal; font-weight: 500; color: var(--honey-2); margin-top: 6px; }

/* ---------- двери ---------- */
.doors { background: var(--card); }
.chips { display: flex; gap: 8px; margin-bottom: 26px; }
.chip { display: inline-flex; align-items: center; min-height: 46px; padding: 0 20px; border-radius: 999px; border: 1px solid var(--line-2); background: var(--bg); font-size: 15px; font-weight: 500; transition: background .25s, color .25s, border-color .25s; }
.chip:hover { border-color: var(--text); }
.chip[aria-pressed="true"] { background: var(--walnut); color: #fff; border-color: var(--walnut); }
.doors__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
html.js .doors__grid:not([hidden]) .dc { animation: hin .5s var(--ease) both; }
.dc { display: grid; gap: 16px; }
.dc__ph { aspect-ratio: 4 / 5; border-color: #fff; }
.dc__ph img { transition: transform .8s var(--ease); }
.dc:hover .dc__ph img { transform: scale(1.04); }
.dc__body { display: grid; gap: 6px; justify-items: start; }
.dc h3 { font: 600 24px/1.15 var(--display); }
.dc__spec { font-size: 13px; letter-spacing: .04em; color: var(--muted); }
.dc__note { font-size: 15px; color: #3C444B; }
.dc__price { margin-top: 4px; }
.dc__price b { display: block; font: 600 24px/1.1 var(--display); color: var(--walnut); }
.dc__price span { font-size: 13.5px; color: var(--muted); }
.dc .btn { margin-top: 6px; }
.doors__note { margin-top: 30px; font-size: 15px; color: var(--muted); max-width: 52em; }

/* ---------- замер ---------- */
.measure__grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: start; }
.measure__txt { grid-column: 1 / span 6; }
.measure__txt .h2 { margin: 16px 0 18px; }
.measure__txt > p { color: var(--muted); }
.measure__list { display: grid; gap: 8px; margin-top: 22px; }
.measure__list li { position: relative; padding-left: 26px; font-size: 15.5px; }
.measure__list li::before { content: ''; position: absolute; left: 0; top: 8px; width: 10px; height: 10px; border: 2px solid var(--honey); }
.measure__ph { aspect-ratio: 3 / 2; margin-top: 30px; max-width: 520px; }
.measure__form { grid-column: 8 / span 5; display: grid; gap: 12px; padding: 28px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; }
.mf__t { font: 500 12.5px/1.3 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-top: 6px; }
.mf__t:first-child { margin-top: 0; }
.days { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.day { position: relative; cursor: pointer; }
.day input { position: absolute; opacity: 0; pointer-events: none; }
.day span { display: grid; justify-items: center; gap: 1px; min-height: 66px; padding: 6px 2px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--bg); transition: background .25s, color .25s, border-color .25s; }
.day small { font-size: 12.5px; color: var(--muted); }
.day b { font: 600 20px/1.1 var(--display); }
.day em { font-style: normal; font-size: 12.5px; color: var(--muted); }
.day:hover span { border-color: var(--text); }
.day input:checked + span { background: var(--text); color: #fff; border-color: var(--text); }
.day input:checked + span small, .day input:checked + span em { color: rgba(255, 255, 255, .7); }
.day input:focus-visible + span { outline: 2px solid var(--honey); outline-offset: 2px; }

/* ---------- монтаж и гарантия ---------- */
.inst { background: var(--card); }
.inst__grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: start; }
.tl { grid-column: 1 / span 6; display: grid; }
.tl li { display: grid; grid-template-columns: 70px 1fr; gap: 18px; padding: 20px 0; border-top: 1px solid var(--line); }
.tl li:last-child { border-bottom: 1px solid var(--line); }
.tl time { font: 600 22px/1.2 var(--display); color: var(--honey-2); }
.tl h3 { font: 600 22px/1.15 var(--display); margin-bottom: 4px; }
.tl p { font-size: 15px; color: #3C444B; }
.inst__phs { grid-column: 8 / span 5; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.inst__phs .frame:first-child { grid-column: 1 / -1; aspect-ratio: 16 / 10; }
.inst__phs .frame { aspect-ratio: 1; }
.guar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: clamp(40px, 5vw, 72px); }
.guar__i { display: grid; gap: 6px; padding: 24px; background: var(--bg); border-radius: 16px; border: 1px solid var(--line); }
.guar__i b { font: 600 clamp(28px, 2.6vw, 36px)/1 var(--display); color: var(--honey-2); }
.guar__i span { font-size: 15px; color: #3C444B; }
.guar__pay { display: grid; gap: 8px; padding: 24px; background: var(--dark); color: var(--on-dark); border-radius: 16px; justify-items: start; }
.guar__pay h3 { font: 600 22px/1.15 var(--display); }
.guar__pay p { font-size: 14.5px; color: var(--on-dark-muted); }
.guar__pay .btn { margin-top: 6px; border-color: var(--dark-line); color: #fff; }
.guar__pay .btn:hover { border-color: #fff; background: transparent; }

/* ---------- установки ---------- */
.works__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.wk { display: grid; gap: 12px; }
.wk .frame { aspect-ratio: 4 / 3; }
.wk img { transition: transform .8s var(--ease); }
.wk button:hover img { transform: scale(1.04); }
.wk figcaption b { display: block; font-weight: 500; font-size: 16px; }
.wk figcaption span { font-size: 14px; color: var(--muted); }
.wk__slot { display: grid; place-items: center; padding: 20px; background: repeating-linear-gradient(135deg, transparent 0 14px, rgba(220, 225, 228, .5) 14px 16px); }
.wk__slot p { font-size: 13.5px; color: var(--muted); text-align: center; max-width: 18em; }

/* ---------- ИИ-консультант ---------- */
.ai { background: var(--dark); color: var(--on-dark); }
.sec-head--dark .kicker { color: #E8B65A; }
.sec-head--dark > p:last-child { color: var(--on-dark-muted); }
.ai .h2 em { color: #E8B65A; }
.ai__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.ai__card { background: var(--dark-2); border: 1px solid var(--dark-line); border-radius: 16px; padding: 26px; display: flex; flex-direction: column; gap: 14px; transition: transform .5s var(--ease), border-color .3s; }
.ai__card:hover { transform: translateY(-4px); border-color: rgba(201, 138, 31, .6); }
.ai__k { font: 600 24px/1.1 var(--display); }
.ai__txt { font-size: 15px; color: var(--on-dark-muted); }
.ai__chat { display: flex; flex-direction: column; gap: 8px; }
.ai__chat p { max-width: 94%; padding: 10px 14px; border-radius: 14px; font-size: 14.5px; line-height: 1.45; }
.ai__me { align-self: flex-end; background: var(--on-dark); color: var(--dark); border-bottom-right-radius: 4px; }
.ai__bot { align-self: flex-start; background: var(--dark); border: 1px solid var(--dark-line); border-bottom-left-radius: 4px; }
.ai__more { align-self: flex-start; margin-top: auto; min-height: 44px; font-weight: 500; font-size: 14.5px; color: #E8B65A; border-bottom: 1px solid transparent; transition: border-color .25s; }
.ai__more:hover { border-color: #E8B65A; }
.ai__drop { display: grid; justify-items: center; gap: 10px; padding: 26px 18px; border: 1.5px dashed var(--dark-line); border-radius: 14px; text-align: center; color: var(--on-dark-muted); font-size: 14.5px; }
.ai__drop svg { width: 40px; height: 40px; color: #E8B65A; }
.ai__card--photo .btn { align-self: flex-start; margin-top: auto; background: var(--honey); box-shadow: none; }
.ai__tg .tg { --bk-bg: #F5F6F4; }
.ai__cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 32px; margin-top: 44px; padding-top: 30px; border-top: 1px solid var(--dark-line); }
.ai__cta p { max-width: 40em; color: var(--on-dark-muted); }

/* ---------- вопросы ---------- */
.faq__grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; }
.faq__intro { grid-column: 1 / span 5; }
.faq__intro .h2 { margin: 16px 0 18px; }
.faq__intro p { color: var(--muted); margin-bottom: 24px; }
.faq__list { grid-column: 7 / span 6; border-top: 1px solid var(--line-2); }
.faq__list details { border-bottom: 1px solid var(--line-2); }
.faq__list summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 20px 0; font: 600 clamp(18px, 1.5vw, 21px)/1.3 var(--display); transition: color .25s; }
.faq__list summary::-webkit-details-marker { display: none; }
.faq__list summary:hover { color: var(--honey-2); }
.faq__list summary i { position: relative; width: 16px; height: 16px; flex: 0 0 auto; }
.faq__list summary i::before, .faq__list summary i::after { content: ''; position: absolute; left: 0; right: 0; top: 50%; height: 2px; background: currentColor; transition: transform .35s var(--ease); }
.faq__list summary i::after { transform: rotate(90deg); }
.faq__list details[open] summary i::after { transform: none; }
.faq__list .ans { padding: 0 40px 22px 0; color: #3C444B; }

/* ---------- контакты ---------- */
.contact { padding-block: var(--sec); background: var(--card); overflow: clip; }
.contact__grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: center; }
.contact__txt { grid-column: 1 / span 6; }
.contact__txt .h2 { margin: 16px 0 26px; }
.contact__dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 20px 0; border-block: 1px solid var(--line); }
.contact__dl dt { font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.contact__dl dd { font: 600 17px/1.35 var(--display); }
.contact__cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.msg-btn { display: inline-flex; align-items: center; gap: 10px; min-height: 54px; padding: 0 20px 0 12px; border-radius: 999px; border: 1px solid var(--line-2); font-weight: 500; font-size: 15px; transition: border-color .25s, transform .3s var(--ease); }
.msg-btn:hover { border-color: var(--text); transform: translateY(-2px); }
.msg-btn svg { width: 26px; height: 26px; }
.contact__ph { grid-column: 8 / span 5; }
.contact__ph .frame { aspect-ratio: 4 / 3; }

/* ---------- подвал ---------- */
.foot { padding: 36px 0 110px; background: var(--bg); color: var(--muted); border-top: 1px solid var(--line); }
.foot__row { display: grid; grid-template-columns: auto 1fr 1.3fr auto; gap: 24px 40px; align-items: start; font-size: 14px; }
.foot a:not(.logo) { color: var(--text); border-bottom: 1px solid var(--line-2); }

/* ---------- метка, кнопка чата, окна ---------- */
.concept { position: fixed; left: 16px; bottom: 16px; z-index: 55; display: inline-flex; align-items: center; gap: 9px; min-height: 44px; padding: 0 14px 0 12px; border-radius: 999px; background: rgba(255, 255, 255, .94); border: 1px solid var(--line-2); font-size: 12.5px; color: var(--muted); backdrop-filter: blur(8px); transition: color .25s, border-color .25s, opacity .4s, transform .4s var(--ease); }
.concept i { width: 6px; height: 6px; border-radius: 50%; background: var(--honey); }
.concept b { color: var(--text); font-weight: 500; }
.concept:hover { color: var(--text); border-color: var(--honey); }
.ask { position: fixed; right: 18px; bottom: 18px; z-index: 56; display: inline-flex; align-items: center; gap: 12px; min-height: 58px; padding: 0 22px 0 8px; border-radius: 999px; background: var(--text); color: #fff; font-weight: 500; font-size: 15px; box-shadow: 0 18px 44px rgba(34, 38, 42, .3); transition: transform .35s var(--ease), opacity .3s; }
.ask:hover { transform: translateY(-3px); }
.ask__ava { position: relative; width: 42px; height: 42px; border-radius: 50%; background: var(--honey); display: grid; place-items: center; font: 600 20px/1 var(--display); }
.ask__ava::after { content: ''; position: absolute; right: 0; bottom: 0; width: 10px; height: 10px; border-radius: 50%; background: #8BD3A0; border: 2px solid var(--text); }
.ask.is-off { opacity: 0; pointer-events: none; transform: translateY(20px); }
dialog { color: var(--text); }
.modal { width: min(560px, 100vw - 24px); margin: auto; padding: 0; border: 0; background: transparent; }
.modal::backdrop, .zoom::backdrop { background: rgba(34, 38, 42, .55); backdrop-filter: blur(4px); }
.modal[open], .zoom[open] { animation: dlg .45s var(--ease); }
@keyframes dlg { from { opacity: 0; transform: translateY(22px); } }
.modal__in { position: relative; background: var(--card); border-radius: 20px; padding: clamp(24px, 4vw, 38px); max-height: calc(100dvh - 24px); overflow-y: auto; overscroll-behavior: contain; }
.modal h2 { font: 600 clamp(26px, 3.4vw, 34px)/1.1 var(--display); padding-right: 56px; margin-bottom: 12px; }
.modal__sum { color: var(--muted); font-size: 15px; margin-bottom: 20px; }
.modal__sum:empty { display: none; }
.modal form { display: grid; gap: 12px; }
.modal__how { font: 500 12.5px/1.3 var(--sans); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 6px 0 -2px; }
.x { position: absolute; right: 14px; top: 14px; z-index: 5; width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--line-2); background: var(--card); transition: border-color .25s, color .25s, transform .35s var(--ease); }
.x:hover { border-color: var(--honey); color: var(--honey-2); transform: rotate(90deg); }
.x svg { width: 18px; height: 18px; }
.done__ok { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; padding-right: 52px; }
.done__ok svg { width: 44px; height: 44px; color: var(--honey); flex: 0 0 auto; }
.done__ok h2 { padding: 0; margin: 0; }
.done__sub { color: #3C444B; font-size: 15px; margin-bottom: 18px; }
.done__note { margin: 18px 0 20px; font-size: 13px; color: var(--muted); border-left: 3px solid var(--honey); padding-left: 14px; }
.done__cta { display: flex; flex-wrap: wrap; gap: 10px; }
.zoom { width: 100vw; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: rgba(34, 38, 42, .96); color: #fff; }
.zoom[open] { display: grid; place-items: center; }
.zoom figure { display: grid; justify-items: center; gap: 14px; padding: 70px 80px; }
.zoom img { max-height: calc(100dvh - 180px); width: auto; border: 8px solid #fff; }
.zoom figcaption { font-size: 15px; color: var(--on-dark-muted); }
.zoom__b { position: absolute; width: 52px; height: 52px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .3); display: grid; place-items: center; transition: border-color .25s; }
.zoom__b:hover { border-color: #fff; }
.zoom__b svg { width: 20px; height: 20px; }
.zoom__prev { left: 18px; top: 50%; } .zoom__next { right: 18px; top: 50%; } .zoom__x { right: 18px; top: 18px; }

/* ---------- страницы ---------- */
.doc { padding: calc(var(--head) + 60px) 0 96px; }
.doc .wrap { max-width: 760px; }
.doc h1 { font: 600 clamp(2.1rem, 5vw, 3.4rem)/1.06 var(--display); margin: 14px 0 26px; }
.doc h2 { font: 600 24px/1.2 var(--display); margin: 34px 0 10px; }
.doc p { color: #3C444B; margin-bottom: 12px; }
.doc a { color: var(--honey-2); border-bottom: 1px solid var(--line-2); }
.plain { min-height: 100svh; display: grid; place-items: center; text-align: center; padding: 120px var(--gutter) 60px; }
.plain .kicker { justify-content: center; }
.plain .h2 { margin: 16px 0 20px; }
.plain p { color: var(--muted); margin: 0 auto 30px; max-width: 30em; }

/* ---------- адаптив ---------- */
@media (max-width: 1180px) {
  .win__grid { grid-template-columns: 1fr; }
  .ai__grid { grid-template-columns: 1fr; }
  .guar { grid-template-columns: repeat(2, 1fr); }
  .calc__form { grid-column: 1 / span 7; }
  .calc__out { grid-column: 8 / span 5; }
}
@media (max-width: 980px) {
  .sec-head .h2, .sec-head > p:last-child { grid-column: 1 / -1; }
  .hero__txt, .hero__ph { grid-column: 1 / -1; }
  .hero__ph { margin-top: 36px; }
  .calc__form, .calc__out { grid-column: 1 / -1; }
  .calc__out { position: static; }
  .win__more { grid-template-columns: 1fr; }
  .doors__grid { grid-template-columns: repeat(2, 1fr); }
  .measure__txt, .measure__form { grid-column: 1 / -1; }
  .tl, .inst__phs { grid-column: 1 / -1; }
  .works__grid { grid-template-columns: repeat(2, 1fr); }
  .faq__intro, .faq__list { grid-column: 1 / -1; }
  .contact__txt, .contact__ph { grid-column: 1 / -1; }
  .foot__row { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 16.5px; }
  .hero { padding-top: calc(var(--head) + 22px); }
  .h1 { font-size: clamp(1.6rem, 8vw, 2.8rem); }
  .hero__lead { margin-top: 18px; font-size: 16.5px; }
  .hero__cta { margin-top: 22px; }
  .hero__cta .btn { flex: 1 1 100%; }
  .hero__facts { grid-template-columns: 1fr 1fr; gap: 12px 16px; margin-top: 26px; }
  .hero__facts b { font-size: 22px; }
  .hero__tag { left: 0; bottom: -18px; padding: 10px 14px; }
  .frame { border-width: 7px; }
  .frame--2::after { width: 7px; margin-left: -3.5px; }
  .row2 { grid-template-columns: 1fr; gap: 20px; }
  .row2--tight { gap: 12px; }
  .seg { grid-template-columns: 1fr; }
  .seg span { text-align: left; align-items: flex-start; min-height: 48px; }
  .mf__half, .measure__form .seg { grid-template-columns: repeat(3, 1fr); }
  .measure__form .seg span { text-align: center; align-items: center; padding: 8px 6px; }
  .measure__form .seg small { font-size: 12.5px; }
  .calc__mini { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 57; align-items: center; gap: 12px; padding: 10px 12px 10px 18px; padding-bottom: calc(10px + env(safe-area-inset-bottom)); background: var(--dark); color: #fff; transform: translateY(110%); transition: transform .4s var(--ease); }
  .calc__mini.is-on { transform: none; }
  .calc__mini div { flex: 1; min-width: 0; }
  .calc__mini small { display: block; font-size: 12.5px; color: var(--on-dark-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .calc__mini b { font: 600 24px/1.1 var(--display); font-variant-numeric: tabular-nums; white-space: nowrap; }
  .calc__mini a { min-height: 46px; padding: 0 18px; display: inline-flex; align-items: center; border-radius: 999px; background: var(--honey); color: #fff; font-weight: 500; font-size: 14.5px; }
  .wc { grid-template-columns: 1fr; }
  .wc__body { justify-items: stretch; }
  .doors__grid { grid-template-columns: 1fr; }
  .dc__body { justify-items: stretch; }
  .measure__form { padding: 20px 16px; }
  .days { grid-template-columns: repeat(3, 1fr); }
  .tl li { grid-template-columns: 56px 1fr; gap: 12px; }
  .inst__phs { grid-template-columns: 1fr 1fr; }
  .guar { grid-template-columns: 1fr; }
  .works__grid { grid-template-columns: 1fr; }
  .ai__card { padding: 22px 18px; }
  .ai__cta .btn { width: 100%; }
  .contact__dl { grid-template-columns: 1fr; gap: 14px; }
  .msg-btn, .contact__cta .btn { flex: 1 1 100%; }
  .concept { left: 12px; bottom: 12px; font-size: 12.5px; }
  .concept.is-off { opacity: 0; pointer-events: none; transform: translateY(12px); }
  .ask { right: 12px; bottom: 12px; padding: 0 8px; }
  .ask__txt { display: none; }
  .ask.is-hero { opacity: 0; pointer-events: none; transform: translateY(20px); }
  .modal { width: 100vw; max-width: none; margin: auto 0 0; }
  .modal__in { border-radius: 20px 20px 0 0; padding: 22px 18px calc(22px + env(safe-area-inset-bottom)); }
  .modal .seg { grid-template-columns: repeat(3, 1fr); }
  .modal .seg span { text-align: center; align-items: center; padding: 8px 6px; font-size: 14px; }
  .zoom figure { padding: 70px 12px; }
  .zoom__prev, .zoom__next { top: auto; bottom: 18px; }
  .faq__list .ans { padding-right: 0; }
}
@media (max-width: 900px) {
  .top.is-solid { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(245, 246, 244, .97); }
  .concept { backdrop-filter: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; scroll-behavior: auto !important; }
  html.js .rv { opacity: 1 !important; transform: none !important; }
  html.js .rvl > span, html.js .hero .ln > span { transform: none !important; }
  .frame[data-par] img { transform: none !important; }
}