/* ============ БАЗА ============ */
:root{
  --lime:#a3e635;          /* кислотный, но приглушённый */
  --lime-dark:#65a30d;
  --lime-soft:#ecfccb;
  --ink:#14210f;
  --gray:#4b5563;
  --bg:#fafdf7;
  --card:#ffffff;
  --dark:#101a0c;
  --radius:18px;
  --shadow:0 10px 30px rgba(20,33,15,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI",Arial,Helvetica,sans-serif;
  background:var(--bg);color:var(--ink);
  line-height:1.6;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* ============ ШАПКА ============ */
header{
  position:sticky;top:0;z-index:100;
  background:rgba(250,253,247,.92);backdrop-filter:blur(8px);
  transition:box-shadow .3s;
}
header.scrolled{box-shadow:0 4px 20px rgba(20,33,15,.1)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;max-width:1180px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem}
.logo svg{width:38px;height:38px}
.menu{display:flex;gap:26px;list-style:none;font-weight:600;font-size:.95rem}
.menu a{position:relative;padding:4px 0;transition:color .25s}
.menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--lime-dark);transition:width .3s}
.menu a:hover{color:var(--lime-dark)}
.menu a:hover::after{width:100%}
.menu a.active{color:var(--lime-dark)}
.menu a.active::after{width:100%}
.btn{
  display:inline-block;background:var(--lime);color:var(--dark);
  padding:12px 26px;border-radius:50px;font-weight:700;border:none;cursor:pointer;
  transition:transform .25s,box-shadow .25s,background .25s;
}
.btn:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(163,230,53,.45);background:#b5f04f}
.burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.burger span{width:26px;height:3px;background:var(--ink);border-radius:2px;transition:.3s}

/* ============ HERO ============ */
.hero{
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  padding:70px 20px 60px;max-width:1180px;margin:0 auto;
}
.hero h1{font-size:clamp(1.8rem,4vw,3rem);line-height:1.15;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--lime-dark)}
.hero p{color:var(--gray);font-size:1.1rem;margin-bottom:26px;max-width:520px}
.hero-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.hero-img svg{width:100%;height:auto}

/* ============ СЕТКИ / КАРТОЧКИ ============ */
section{padding:60px 0}
.sec-title{font-size:clamp(1.5rem,3vw,2.2rem);text-align:center;margin-bottom:14px}
.sec-sub{text-align:center;color:var(--gray);max-width:640px;margin:0 auto 40px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px}
.card{
  background:var(--card);border-radius:var(--radius);padding:28px;
  box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-8px);box-shadow:0 16px 40px rgba(20,33,15,.14)}
.card .icon{width:54px;height:54px;border-radius:14px;background:var(--lime-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card .icon svg{width:28px;height:28px}
.card h3{margin-bottom:10px;font-size:1.1rem}
.card p{color:var(--gray);font-size:.95rem}

/* ============ ЛАБОРАТОРИЯ (акцент) ============ */
.lab{background:var(--dark);color:#e7f5d8;border-radius:30px;margin:20px;}
.lab .container{padding:60px 20px}
.lab h2{color:var(--lime);font-size:clamp(1.5rem,3vw,2.2rem);margin-bottom:14px}
.lab p{color:#b8c9a6;max-width:640px;margin-bottom:24px}
.lab .grid .card{background:#1a2612;color:#e7f5d8}
.lab .grid .card p{color:#a9bd90}
.lab .card .icon{background:rgba(163,230,53,.15)}

/* ============ СТАТИСТИКА ============ */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px;text-align:center}
.stat b{display:block;font-size:2.2rem;color:var(--lime-dark)}
.stat span{color:var(--gray);font-size:.95rem}

/* ============ ФОРМА ============ */
.feedback{background:var(--lime-soft);border-radius:30px;margin:20px}
.feedback .container{padding:60px 20px;max-width:640px}
.feedback h2{text-align:center;margin-bottom:8px}
.feedback p{text-align:center;color:var(--gray);margin-bottom:26px}
form{display:flex;flex-direction:column;gap:14px}
input,textarea{
  padding:14px 18px;border:2px solid transparent;border-radius:14px;
  background:#fff;font-size:1rem;font-family:inherit;transition:border .25s,box-shadow .25s;
}
input:focus,textarea:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 4px rgba(163,230,53,.25)}

/* ============ ПОДВАЛ ============ */
footer{background:var(--dark);color:#a9bd90;margin-top:40px}
footer .container{padding:50px 20px 20px}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;margin-bottom:30px}
footer h4{color:var(--lime);margin-bottom:12px}
footer ul{list-style:none}
footer li{margin-bottom:8px}
footer a:hover{color:var(--lime)}
.copy{text-align:center;border-top:1px solid #2a3a1e;padding-top:18px;font-size:.85rem}

/* ============ АНИМАЦИИ ПОЯВЛЕНИЯ ============ */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* ============ АДАПТИВ ============ */
@media(max-width:860px){
  .hero{grid-template-columns:1fr;padding:40px 20px}
  .burger{display:flex}
  .menu{
    position:fixed;top:66px;right:-100%;flex-direction:column;gap:0;
    background:var(--card);width:min(280px,80vw);height:calc(100vh - 66px);
    padding:20px;box-shadow:-6px 0 24px rgba(0,0,0,.12);
    transition:right .35s ease;
  }
  .menu.open{right:0}
  .menu li{padding:14px 6px;border-bottom:1px solid #eef2e6}
  .nav .btn{display:none}
}

/* ============ ВАРИАНТ 2: фото и доп. блоки ============ */
.hero-photo{padding:0}
.hero-photo .hero{
  background:linear-gradient(rgba(16,26,12,.55),rgba(16,26,12,.55)),url('../img/hero.jpg') center/cover no-repeat;
  border-radius:0 0 40px 40px;color:#fff;min-height:520px;
}
.hero-photo .hero p{color:#e4f2d2}
.photo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.photo-card{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#fff;transition:transform .3s,box-shadow .3s}
.photo-card:hover{transform:translateY(-8px);box-shadow:0 18px 44px rgba(20,33,15,.18)}
.photo-card img{width:100%;height:200px;object-fit:cover}
.photo-card .body{padding:20px}
.photo-card h3{margin-bottom:8px}
.photo-card p{color:var(--gray);font-size:.93rem}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;counter-reset:step}
.step{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:relative}
.step::before{counter-increment:step;content:counter(step);display:inline-flex;width:40px;height:40px;border-radius:50%;background:var(--lime);color:var(--dark);font-weight:800;align-items:center;justify-content:center;margin-bottom:12px}
.banner-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin:10px 0}
.banner-img img{width:100%;height:320px;object-fit:cover}
.reviews{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.review{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);border-left:5px solid var(--lime)}
.review b{display:block;margin-bottom:8px}
.review p{color:var(--gray);font-size:.95rem}
.review .stars{color:#f59e0b;letter-spacing:2px;margin-bottom:8px}
.partners{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;align-items:center}
.partner{background:#fff;border-radius:14px;box-shadow:var(--shadow);padding:16px 26px;font-weight:700;color:var(--gray);transition:transform .25s,color .25s}
.partner:hover{transform:translateY(-4px);color:var(--lime-dark)}