/* rf-buh.ru — warm orange theme, 2026 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#fdf6ee; --bg2:#fff3e0; --bg3:#ffecd4;
  --orange:#d97000; --orange-h:#b85c00; --dark:#1a0a00;
  --text:#2d1200; --muted:#6b3a10; --faint:#a06030;
  --card:#fff8f0; --border:rgba(217,112,0,.18);
  --white:#fff; --shadow:0 4px 24px rgba(139,58,0,.10);
}
html{scroll-behavior:smooth;overflow-x:hidden}
body{font-family:'Quicksand',sans-serif;background:var(--bg);
  color:var(--text);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}

/* ── NAV ── */
nav{position:sticky;top:0;z-index:100;
  background:rgba(253,246,238,.92);backdrop-filter:blur(12px);
  border-bottom:1.5px solid var(--border);padding:0 2rem;
  display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo img,.nav-logo svg{height:38px;width:auto}
.nav-links{display:flex;gap:1.8rem}
.nav-links a{text-decoration:none;color:var(--muted);font-size:.85rem;
  font-weight:700;letter-spacing:.04em;transition:color .2s}
.nav-links a:hover{color:var(--orange)}
.nav-cta{background:var(--orange);color:#fff;border:none;border-radius:7px;
  padding:.55rem 1.4rem;font-family:'Quicksand',sans-serif;font-size:.85rem;
  font-weight:700;cursor:pointer;transition:background .2s,box-shadow .2s}
.nav-cta:hover{background:var(--orange-h);box-shadow:0 4px 16px rgba(217,112,0,.35)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;border:none;background:none;padding:4px}
.burger span{display:block;width:22px;height:2px;background:var(--muted);border-radius:2px;transition:all .3s}

/* ── SECTIONS ── */
section{padding:6rem 2rem}
.container{max-width:1100px;margin:0 auto}
.section-eyebrow{font-family:'Josefin Slab',serif;font-size:.72rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--orange);font-weight:600;margin-bottom:.6rem}
.section-title{font-family:'Black Han Sans',sans-serif;
  font-size:clamp(2rem,4vw,2.8rem);color:var(--dark);line-height:1.15;margin-bottom:1rem}
.section-sub{color:var(--muted);max-width:560px;font-size:.95rem;font-weight:500}

/* ── HERO ── */
#hero{background:linear-gradient(160deg,#fff8f0 0%,#ffecd4 60%,#fdf6ee 100%);
  min-height:92vh;display:flex;align-items:center;padding:5rem 2rem}
.hero-inner{display:flex;gap:4rem;align-items:center;max-width:1100px;margin:0 auto;width:100%}
.hero-text{flex:1}
.hero-badge{display:inline-block;background:#fff3e0;border:1.5px solid var(--border);
  border-radius:100px;padding:.3rem .9rem;font-size:.74rem;font-weight:700;
  color:var(--orange);letter-spacing:.05em;margin-bottom:1.2rem}
.hero-h1{font-family:'Black Han Sans',sans-serif;
  font-size:clamp(2.4rem,5vw,3.6rem);color:var(--dark);line-height:1.1;margin-bottom:1.2rem}
.hero-h1 span{color:var(--orange)}
.hero-sub{font-size:1.05rem;color:var(--muted);font-weight:500;
  max-width:480px;margin-bottom:2rem;line-height:1.6}
.hero-price{display:inline-flex;align-items:baseline;gap:.4rem;
  background:var(--bg3);border:1.5px solid var(--border);border-radius:10px;
  padding:.6rem 1.2rem;margin-bottom:2rem}
.hero-price-from{font-size:.78rem;color:var(--faint);font-weight:600}
.hero-price-num{font-family:'Black Han Sans',sans-serif;font-size:2rem;color:var(--orange)}
.hero-price-unit{font-size:.78rem;color:var(--faint);font-weight:600}
.hero-btns{display:flex;gap:1rem;flex-wrap:wrap}
.btn-primary{background:linear-gradient(135deg,#d97000,#b85e00);color:#fff;
  border:none;border-radius:9px;padding:.8rem 2rem;font-family:'Quicksand',sans-serif;
  font-size:.95rem;font-weight:700;cursor:pointer;
  box-shadow:0 4px 20px rgba(139,58,0,.25);transition:all .2s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(139,58,0,.3)}
.btn-outline{background:transparent;color:var(--orange);
  border:2px solid var(--orange);border-radius:9px;padding:.78rem 2rem;
  font-family:'Quicksand',sans-serif;font-size:.95rem;font-weight:700;cursor:pointer;
  transition:all .2s}
.btn-outline:hover{background:var(--orange);color:#fff}
.hero-logo-wrap{flex:0 0 340px;display:flex;align-items:center;justify-content:center}
.hero-logo-wrap svg{width:100%;height:auto}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

.hero-logo-img{width:100%;height:auto;border-radius:50%;object-fit:cover;aspect-ratio:1;box-shadow:0 8px 40px rgba(139,58,0,.28);animation:float 5s ease-in-out infinite}


/* ── STATS ── */
#stats{background:var(--bg3);padding:2.5rem 2rem;border-top:1.5px solid var(--border);
  border-bottom:1.5px solid var(--border)}
.stats-grid{display:flex;justify-content:space-around;max-width:900px;margin:0 auto;flex-wrap:wrap;gap:1.5rem}
.stat-item{text-align:center}
.stat-num{font-family:'Black Han Sans',sans-serif;font-size:2.6rem;color:var(--orange);
  line-height:1;display:block}
.stat-label{font-size:.78rem;color:var(--muted);font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;margin-top:.3rem}

/* ── CARDS ── */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.4rem;
  margin-top:2.5rem}
.service-card{background:var(--card);border:1.5px solid var(--border);border-radius:14px;
  padding:1.8rem;transition:transform .25s,box-shadow .25s}
.service-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(139,58,0,.12)}
.service-icon{font-size:2rem;margin-bottom:1rem}
.service-card h3{font-family:'Black Han Sans',sans-serif;font-size:1.15rem;
  color:var(--dark);margin-bottom:.7rem}
.service-card p{color:var(--muted);font-size:.88rem;line-height:1.65}
.service-card-num{font-family:'Josefin Slab',serif;font-size:.68rem;font-weight:600;
  color:var(--faint);letter-spacing:.15em;text-transform:uppercase;margin-bottom:.6rem}

/* ── WHY CARDS ── */
.why-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:1.2rem;margin-top:2.5rem}
.why-card{background:var(--white);border:1.5px solid var(--border);border-radius:12px;
  padding:1.4rem 1.6rem;display:flex;gap:1rem;align-items:flex-start}
.why-icon{width:42px;height:42px;border-radius:10px;background:var(--bg3);
  display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
.why-text h4{font-family:'Black Han Sans',sans-serif;font-size:.95rem;
  color:var(--dark);margin-bottom:.3rem}
.why-text p{font-size:.82rem;color:var(--muted);line-height:1.55}

/* ── CALCULATOR ── */
#calculator{background:var(--bg2)}
.calc-wrap{background:var(--white);border:1.5px solid var(--border);
  border-radius:18px;padding:2.5rem;max-width:820px;margin:2rem auto 0;
  box-shadow:var(--shadow)}
.calc-group{margin-bottom:2rem}
.calc-label{font-family:'Josefin Slab',serif;font-size:.72rem;font-weight:600;
  letter-spacing:.15em;text-transform:uppercase;color:var(--faint);margin-bottom:.8rem;display:block}
.calc-cards{display:flex;flex-wrap:wrap;gap:.6rem}
.calc-card{position:relative}
.calc-card input{position:absolute;opacity:0;width:0;height:0}
.calc-card label{display:flex;flex-direction:column;align-items:center;gap:.3rem;
  padding:.75rem 1.2rem;min-width:110px;
  background:var(--bg);border:1.5px solid var(--border);border-radius:10px;
  cursor:pointer;font-size:.83rem;font-weight:700;color:var(--muted);
  text-align:center;transition:all .18s;line-height:1.35}
.calc-card label .icon{font-size:1.4rem}
.calc-card input:checked+label{background:var(--bg3);border-color:var(--orange);color:var(--orange)}
.calc-card label:hover{border-color:var(--orange)}
.calc-result{background:linear-gradient(135deg,var(--bg3),var(--bg2));
  border:1.5px solid var(--border);border-radius:14px;padding:1.8rem 2rem;
  margin-top:1.5rem;display:none}
.calc-result-label{font-family:'Josefin Slab',serif;font-size:.72rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--faint);font-weight:600;margin-bottom:.5rem}
.calc-price-range{display:flex;align-items:baseline;gap:.5rem}
.calc-price-from,.calc-price-to{font-size:.85rem;color:var(--muted);font-weight:600}
.calc-price-num{font-family:'Black Han Sans',sans-serif;font-size:2.4rem;color:var(--orange)}
.calc-savings{margin-top:.8rem;font-size:.83rem;color:var(--dark);font-weight:600;
  background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:.5rem .9rem;
  display:none}
.calc-hint{color:var(--faint);font-size:.85rem;margin-top:1rem;
  text-align:center;font-weight:500}
.calc-cta-btn{margin-top:1.2rem;display:block;width:100%}

/* ── COMPARISON TABLE ── */
#comparison{background:var(--bg)}
.comp-table-wrap{overflow-x:auto;margin-top:2rem}
.comp-table{width:100%;border-collapse:collapse;min-width:580px}
.comp-table th{font-family:'Black Han Sans',sans-serif;font-size:.9rem;
  padding:1rem 1.4rem;text-align:center;border-bottom:2px solid var(--border)}
.comp-table th.highlight{background:var(--bg3);color:var(--orange);border-radius:8px 8px 0 0}
.comp-table td{padding:.85rem 1.4rem;text-align:center;border-bottom:1px solid var(--border);
  font-size:.88rem;color:var(--text)}
.comp-table td:first-child{text-align:left;font-weight:600;color:var(--dark)}
.comp-table tr:last-child td{border-bottom:none}
.comp-table tr:hover td{background:var(--bg2)}
.comp-table td.highlight{background:rgba(255,237,196,.35)}
.comp-yes{color:#16a34a;font-weight:700}
.comp-no{color:#dc2626;font-weight:700}
.comp-maybe{color:var(--muted);font-weight:600}

/* ── FAQ ── */
#faq{background:var(--bg2)}
.faq-list{max-width:780px;margin:2rem auto 0;display:flex;flex-direction:column;gap:.8rem}
.faq-item{background:var(--white);border:1.5px solid var(--border);border-radius:12px;overflow:hidden}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;
  padding:1.2rem 1.5rem;background:none;border:none;cursor:pointer;
  font-family:'Quicksand',sans-serif;font-size:.95rem;font-weight:700;
  color:var(--dark);text-align:left;transition:background .2s;gap:1rem}
.faq-q:hover{background:var(--bg2)}
.faq-arrow{font-size:1.1rem;color:var(--orange);transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .3s ease;
  font-size:.9rem;color:var(--muted);line-height:1.7;padding:0 1.5rem}
.faq-item.open .faq-a{max-height:300px;padding:.8rem 1.5rem 1.4rem}

/* ── CONTACT ── */
#contact{background:var(--bg3)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;margin-top:2.5rem}
.contact-info{display:flex;flex-direction:column;gap:1.4rem}
.contact-item{display:flex;align-items:flex-start;gap:1rem}
.contact-icon{width:44px;height:44px;background:var(--white);border:1.5px solid var(--border);
  border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:1.2rem;flex-shrink:0}
.contact-label{font-size:.72rem;font-weight:700;color:var(--faint);
  letter-spacing:.1em;text-transform:uppercase;margin-bottom:.2rem;font-family:'Josefin Slab',serif}
.contact-value{font-size:1rem;font-weight:700;color:var(--dark)}
.contact-value a{color:var(--dark);text-decoration:none}
.contact-value a:hover{color:var(--orange)}
.contact-form{background:var(--white);border:1.5px solid var(--border);
  border-radius:16px;padding:2rem}
.contact-form h3{font-family:'Black Han Sans',sans-serif;font-size:1.2rem;
  color:var(--dark);margin-bottom:1.4rem}
.form-field{margin-bottom:1rem}
.form-field label{display:block;font-size:.78rem;font-weight:700;
  color:var(--muted);margin-bottom:.35rem}
.form-field input,.form-field textarea,.form-field select{
  width:100%;padding:.65rem .9rem;background:var(--bg);border:1.5px solid var(--border);
  border-radius:8px;font-family:'Quicksand',sans-serif;font-size:.88rem;
  color:var(--dark);outline:none;transition:border-color .2s}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{border-color:var(--orange)}
.form-field textarea{resize:vertical;min-height:80px}
.form-note{font-size:.75rem;color:var(--faint);margin-top:1rem;line-height:1.5}
.form-success{display:none;text-align:center;padding:1.5rem;
  color:#16a34a;font-weight:700;font-size:.9rem}

/* ── FOOTER ── */
footer{background:var(--dark);color:#c8a87a;padding:2.5rem 2rem;text-align:center}
.footer-logo{font-family:'Black Han Sans',sans-serif;font-size:1.6rem;
  color:#fff;margin-bottom:.8rem}
.footer-logo span{color:var(--orange)}
.footer-links{display:flex;justify-content:center;gap:2rem;margin:1rem 0;flex-wrap:wrap}
.footer-links a{color:#c8a87a;text-decoration:none;font-size:.82rem;
  font-weight:600;transition:color .2s}
.footer-links a:hover{color:var(--orange)}
.footer-copy{font-size:.78rem;color:#7a5830;margin-top:1rem}

/* ── REVEAL ANIMATIONS ── */
.reveal{opacity:0;transform:translateY(36px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-36px);transition:opacity .7s ease,transform .7s ease}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-scale{opacity:0;transform:scale(.92);transition:opacity .6s ease,transform .6s ease}
.reveal-scale.visible{opacity:1;transform:scale(1)}
.delay-1{transition-delay:.1s}.delay-2{transition-delay:.2s}
.delay-3{transition-delay:.3s}.delay-4{transition-delay:.4s}
.delay-5{transition-delay:.5s}.delay-6{transition-delay:.6s}

/* ── RESPONSIVE ── */
@media(max-width:900px){
  .hero-inner{flex-direction:column;text-align:center}
  .hero-logo-wrap{flex:0 0 340px;display:flex;align-items:center;justify-content:center}
  .hero-sub,.hero-btns{justify-content:center}
  .contact-grid{grid-template-columns:1fr}
  .nav-links{display:none}
}
@media(max-width:600px){
  section{padding:4rem 1.2rem}
  .comp-table td,.comp-table th{padding:.7rem .8rem;font-size:.8rem}
  .calc-wrap{padding:1.5rem}
}