/* РентаКит — минималистичный тёмный лендинг, типографика в духе Apple */
:root{
  --bg:#0d0d0f;
  --surface:#16171b;
  --surface-2:#1d1e24;
  --line:rgba(255,255,255,.09);
  --text:#f5f5f3;
  --muted:#9d9da7;
  --accent:#c9a55c;
  --accent-deep:#a98842;
  --radius:22px;
  --font:-apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);color:var(--text);
  font-size:17px;line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
::selection{background:var(--accent);color:#0d0d0f}

.container{max-width:1180px;margin:0 auto;padding:0 clamp(20px,4vw,40px)}
.container-narrow{max-width:760px}
.section{padding:clamp(72px,10vh,120px) 0}
[id]{scroll-margin-top:84px}
.section-alt{background:var(--surface)}
.section-dark{background:linear-gradient(180deg,#12100c,#191509);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

h1,h2,h3{letter-spacing:-.022em;line-height:1.12;font-weight:700}
h1{font-size:clamp(2.3rem,5.6vw,4.3rem)}
h1 em{font-style:normal;color:var(--accent)}
h2{font-size:clamp(1.7rem,3.6vw,2.7rem)}
h3{font-size:1.06rem;font-weight:600}
.eyebrow{
  font-size:.78rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.lead{font-size:1.14rem;color:#c9c9cf;max-width:34ch;margin-top:22px}
.section-sub{color:var(--muted);margin-top:14px;max-width:56ch}

/* ---------- Кнопки ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:.95rem;
  padding:14px 28px;transition:background .2s ease,transform .15s ease,border-color .2s ease;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--accent);color:#141414}
.btn-primary:hover{background:#d9b96f}
.btn-ghost{border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{padding:10px 20px;font-size:.86rem}
.btn-lg{padding:17px 36px;font-size:1rem;width:100%}
.linklike{color:var(--accent);text-decoration:underline;text-underline-offset:3px;font-size:inherit}

/* ---------- Шапка ---------- */
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,13,15,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.logo{font-weight:800;font-size:1.25rem;letter-spacing:-.02em}
.logo span{color:var(--accent)}
.nav{display:flex;gap:clamp(14px,2.2vw,30px);align-items:center}
.nav a{font-size:.9rem;color:var(--muted);transition:color .2s}
.nav a:hover{color:var(--text)}
.nav-contacts{display:none}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--muted);
  transition:color .2s,border-color .2s;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--accent);border-color:var(--accent)}
.burger{display:none;flex-direction:column;gap:5px;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:50%}
.burger span{width:16px;height:1.6px;background:var(--text);transition:transform .25s,opacity .25s}
.burger.open span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{padding:clamp(48px,8vh,90px) 0 clamp(56px,8vh,90px)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,72px);align-items:center}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.hero-stats{display:flex;gap:clamp(20px,3vw,44px);margin-top:44px;flex-wrap:wrap}
.stat b{display:block;font-size:1.5rem;letter-spacing:-.02em;color:var(--accent)}
.stat span{font-size:.8rem;color:var(--muted);display:block;margin-top:4px;max-width:20ch}
.hero-media{position:relative}
.hero-media img{border-radius:var(--radius);width:100%;height:auto;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.hero-badge{
  position:absolute;left:18px;bottom:18px;
  background:rgba(13,13,15,.82);backdrop-filter:blur(8px);
  border:1px solid var(--line);border-radius:16px;padding:12px 18px;
}
.hero-badge b{color:var(--accent);font-size:1.2rem;display:block}
.hero-badge span{font-size:.76rem;color:var(--muted)}

/* ---------- Карточки ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.card{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px 24px;
  transition:transform .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(201,165,92,.4)}
.card h3{margin-bottom:10px}
.card p{font-size:.92rem;color:var(--muted)}
.step-num{font-size:.8rem;font-weight:700;color:var(--accent);letter-spacing:.1em;display:block;margin-bottom:14px}

/* ---------- Кейсы ---------- */
.compare{
  position:relative;margin-top:40px;border-radius:var(--radius);overflow:hidden;
  aspect-ratio:16/9;background:var(--surface-2);user-select:none;touch-action:pan-y;
}
.compare img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.compare-before{position:absolute;inset:0;overflow:hidden;width:50%}
.compare-before img{width:100%;height:100%;object-fit:cover;position:absolute;left:0;top:0;max-width:none}
.compare-handle{
  position:absolute;top:0;bottom:0;left:50%;width:2px;background:#fff;cursor:ew-resize;
  transform:translateX(-1px);
}
.compare-handle span{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:44px;height:44px;border-radius:50%;background:#fff;color:#111;
  display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:700;
  box-shadow:0 4px 16px rgba(0,0,0,.4);
}
.tag{
  position:absolute;top:16px;font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  background:rgba(13,13,15,.8);border:1px solid var(--line);padding:6px 12px;border-radius:999px;
}
.tag-before{left:16px}.tag-after{right:16px;color:var(--accent)}

.case-facts{display:flex;flex-wrap:wrap;gap:clamp(18px,3vw,40px);margin-top:32px}
.fact b{display:block;font-size:1.35rem;letter-spacing:-.02em}
.fact span{font-size:.8rem;color:var(--muted);display:block;margin-top:3px}
.case-note{margin-top:28px;color:var(--muted);font-size:.95rem;max-width:64ch;border-left:2px solid var(--accent);padding-left:16px}

.gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:28px}
.gallery-6{grid-template-columns:repeat(3,1fr)}
.g-item{
  border-radius:14px;overflow:hidden;padding:0;aspect-ratio:4/3;
  transition:transform .25s ease;position:relative;
}
.gallery-6 .g-item{aspect-ratio:4/3}
.g-item img{width:100%;height:100%;object-fit:cover}
.g-item:hover{transform:scale(1.02)}
.g-item:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- Производство ---------- */
.split{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(32px,5vw,72px);align-items:start}
.adv-list{display:flex;flex-direction:column;gap:14px}
.adv{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:18px;padding:20px 22px}
.adv b{font-size:1.05rem;letter-spacing:-.01em}
.adv p{color:var(--muted);font-size:.92rem;margin-top:6px}

/* ---------- Цены ---------- */
.price-anchors{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px}
.anchor{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  background:var(--surface-2);border:1px solid var(--line);border-radius:18px;padding:20px 24px;
}
.anchor span{color:var(--muted);font-size:.92rem}
.anchor b{font-size:1.1rem;color:var(--accent);letter-spacing:-.01em}

/* ---------- Отзывы ---------- */
.review blockquote{font-size:1rem;line-height:1.6;color:#d8d8de}
.review figcaption{margin-top:18px;font-weight:600;font-size:.92rem}
.review figcaption span{display:block;color:var(--muted);font-weight:400;font-size:.82rem;margin-top:2px}

/* ---------- FAQ ---------- */
.faq-list{margin-top:36px;display:flex;flex-direction:column;gap:12px}
details{background:var(--surface-2);border:1px solid var(--line);border-radius:16px;overflow:hidden}
summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-weight:600;font-size:1rem;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--accent);font-size:1.4rem;font-weight:400;transition:transform .25s}
details[open] summary::after{transform:rotate(45deg)}
details p{padding:0 24px 20px;color:var(--muted);font-size:.94rem}

/* ---------- Форма ---------- */
.lead-form{margin-top:36px;display:flex;flex-direction:column;gap:14px;text-align:left}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.lead-form input[type=text],.lead-form input[type=tel]{
  width:100%;background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:14px;padding:16px 18px;color:var(--text);font-size:1rem;font-family:inherit;
  transition:border-color .2s;
}
.lead-form input:focus{outline:none;border-color:var(--accent)}
.lead-form input::placeholder{color:#6d6d78}
.form-chips{display:flex;gap:10px;flex-wrap:wrap}
.form-chips input{position:absolute;opacity:0;pointer-events:none}
.form-chips span{
  display:inline-block;padding:10px 18px;border-radius:999px;border:1px solid var(--line);
  font-size:.88rem;color:var(--muted);transition:all .2s;cursor:pointer;
}
.form-chips input:checked + span{background:var(--accent);color:#141414;border-color:var(--accent)}
.form-chips input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px}
.form-msg{min-height:1.4em;font-size:.92rem;text-align:center}
.form-msg.ok{color:#7fc98f}.form-msg.err{color:#e08a7a}
.form-legal{font-size:.78rem;color:var(--muted);text-align:center}

/* ---------- Футер ---------- */
.footer{padding:64px 0 32px;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.footer-note{color:var(--muted);font-size:.88rem;margin-top:12px;max-width:32ch}
.footer-col h4{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.footer-col a{display:block;font-size:.95rem;margin-bottom:9px;color:#d5d5da;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:.8rem;color:var(--muted);
}

/* ---------- Плавающая кнопка WA ---------- */
.wa-float{
  position:fixed;right:20px;bottom:20px;z-index:45;
  width:56px;height:56px;border-radius:50%;background:#25d366;color:#0d0d0f;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 28px rgba(0,0,0,.45);transition:transform .2s;
}
.wa-float svg{width:28px;height:28px}
.wa-float:hover{transform:scale(1.07)}

/* ---------- Лайтбокс / модалка ---------- */
.lightbox,.modal{
  position:fixed;inset:0;z-index:80;background:rgba(8,8,10,.92);
  display:none;align-items:center;justify-content:center;
}
.lightbox.open,.modal.open{display:flex}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:12px}
.lb-close{
  position:absolute;top:20px;right:20px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);color:var(--text);font-size:1.1rem;
  display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.4);
}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:50px;height:50px;border-radius:50%;border:1px solid var(--line);
  color:var(--text);font-size:1.6rem;background:rgba(0,0,0,.4);
  display:flex;align-items:center;justify-content:center;
}
.lb-prev{left:18px}.lb-next{right:18px}
.modal-box{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);
  max-width:560px;width:calc(100vw - 40px);max-height:80vh;overflow:auto;padding:36px;position:relative;
}
.modal-box h3{margin-bottom:16px;font-size:1.3rem}
.modal-box p{color:var(--muted);font-size:.92rem;margin-bottom:12px}
.modal-close{position:absolute;top:14px;right:14px}

/* ---------- Появление ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,.8,.3,1)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.07s}.d2{transition-delay:.14s}.d3{transition-delay:.21s}.d4{transition-delay:.28s}

/* ---------- Адаптив ---------- */
@media (max-width:1020px){
  .hero-grid{grid-template-columns:1fr}
  .hero-media{order:-1}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:760px){
  body{font-size:16px}
  .nav{
    position:fixed;inset:64px 0 auto 0;z-index:49;
    flex-direction:column;align-items:flex-start;gap:0;
    background:rgba(13,13,15,.97);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);padding:12px 20px 20px;
    transform:translateY(-130%);transition:transform .3s ease;
  }
  .nav.open{transform:translateY(0)}
  .nav a{padding:13px 0;font-size:1.05rem;width:100%;border-bottom:1px solid var(--line)}
  .nav-contacts{display:flex;flex-direction:column;gap:6px;width:100%;padding-top:12px}
  .nav-tel{font-weight:700;font-size:1.1rem}
  .nav-wa{color:var(--accent)}
  .burger{display:flex}
  .header-actions .btn,.header-actions .icon-btn{display:none}
  .grid-4,.grid-3{grid-template-columns:1fr}
  .gallery,.gallery-6{grid-template-columns:repeat(2,1fr)}
  .price-anchors{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .compare{aspect-ratio:4/3}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}