:root{
  --brand:#0f2f4a; --brand-2:#123a5e; --ink:#0b1a2a; --muted:#54657a;
  --bg:#f6f8fb; --card:#ffffff; --line:#e6ecf3;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Inter',Arial,sans-serif;color:var(--ink);background:var(--bg)}
.wrap{max-width:1100px;margin-inline:auto;padding:0 20px}

header.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.header-row{display:flex;align-items:center;gap:18px;padding:12px 0}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.brand img{width:44px;height:44px;object-fit:contain}
.brand .title{font-weight:800;letter-spacing:.2px;color:var(--brand)}
.brand small{display:block;font-weight:600;color:var(--muted);font-size:12px;margin-top:-6px}

nav ul{display:flex;gap:18px;list-style:none;margin:0;margin-left:auto;padding:0}
nav a{display:inline-block;padding:8px 12px;border-radius:10px;text-decoration:none;color:var(--brand)}
nav a:hover{background:var(--bg)}
nav a.active{background:var(--bg);box-shadow:inset 0 -3px 0 var(--brand-2)}
.menu-btn{display:none;margin-left:auto;background:transparent;border:1px solid var(--line);padding:8px 10px;border-radius:10px;color:var(--brand);font-weight:700;cursor:pointer}

.hero{background:linear-gradient(180deg, rgba(18,58,94,.08), rgba(18,58,94,0));border-bottom:1px solid var(--line)}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center;padding:40px 0}
.hero h1{font-size:36px;line-height:1.2;margin:0 0 10px;color:var(--brand)}
.hero p{margin:0 0 18px;color:var(--muted)}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{appearance:none;border:none;background:var(--brand);color:#fff;padding:12px 16px;border-radius:12px;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;gap:8px;cursor:pointer;transition:.25s}
.btn.secondary{background:#fff;color:var(--brand);border:1px solid var(--line)}
.btn:hover{transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,0,0,.1)}

section#services{padding:36px 0}
.tabs{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.tab-head{display:flex;flex-wrap:wrap;background:#fff;border-bottom:1px solid var(--line)}
.tab-head label{flex:1 1 220px;cursor:pointer;padding:14px 16px;font-weight:700;text-align:center;color:var(--brand);transition:.25s}
.tab-head label:hover{background:var(--bg)}
.tabs input[type=radio]{position:absolute;opacity:0;pointer-events:none}
.tab-content{display:none;padding:20px 20px 28px;background:var(--card);animation:fadeIn .4s ease}
.tab-content h3{margin:6px 0 12px;color:var(--brand)}
.tab-content p{color:var(--muted)}

.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:14px;transition:.25s}
.card:hover{transform:translateY(-3px);box-shadow:0 4px 12px rgba(0,0,0,.08)}
.card h4{margin:0 0 6px;color:var(--ink)}
.card ul{margin:0;padding-left:18px}
.card li{margin:6px 0}
.note{font-size:14px;color:var(--muted)}

section#contacts{padding:40px 0;border-top:1px solid var(--line)}
.contacts-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.contact-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;transition:.25s}
.contact-card:hover{box-shadow:0 4px 12px rgba(0,0,0,.08)}
.contact-card h3{margin-top:0;color:var(--brand)}
.contact-list{list-style:none;margin:0;padding:0}
.contact-list li{padding:6px 0;border-bottom:1px dashed var(--line)}
.contact-list li:last-child{border-bottom:none}

footer{border-top:1px solid var(--line);padding:18px 0;text-align:center;color:var(--muted)}

@media (max-width:900px){
  .hero-inner,.contacts-wrap{grid-template-columns:1fr}
}
@media (max-width:640px){
  .grid{grid-template-columns:1fr}
  .hero h1{font-size:28px}
  .brand .title{font-size:18px}
  nav ul{gap:8px}
  .menu-btn{display:inline-block}
  nav{display:none}
  nav.open{display:block;width:100%}
  nav ul{flex-direction:column;align-items:flex-start;padding:8px 0}
  nav a{width:100%}
}

@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}


/* === Top banner (dismissible) === */
.top-banner{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#fff}
.top-banner .wrap{display:flex;gap:16px;align-items:center;padding:10px 20px}
.top-banner b{letter-spacing:.2px}
.banner-close{margin-left:auto;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:10px;padding:8px 10px;cursor:pointer}
.banner-close:hover{background:rgba(255,255,255,.2)}

/* === Contact form === */
.form{display:grid;gap:12px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form label{font-weight:700;color:var(--brand)}
.form input,.form textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}
.form textarea{min-height:120px;resize:vertical}
.form .actions{display:flex;gap:10px;align-items:center}
.form .hint{font-size:13px;color:var(--muted)}
.form .error{font-size:13px;color:#b00020;display:none}
.form .status{font-size:14px}
.is-invalid{border-color:#b00020;background:rgba(176,0,32,.04)}
.success{color:#1f7a4c}
.fail{color:#b00020}

/* === Map === */
.map-frame{width:100%;height:340px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
@media (max-width:640px){ .form-row{grid-template-columns:1fr} }

.map-link{margin-left:8px;font-weight:700;}


/* === Parallax hero bg === */
.hero{position:relative;overflow:hidden}
.hero .hero-inner{position:relative;z-index:1}
.hero-bg{position:absolute;inset:-20% -10% -10% -10%;z-index:0;
  background:
    radial-gradient(800px 400px at 10% 20%, rgba(18,58,94,.12), transparent 60%),
    radial-gradient(600px 300px at 90% 10%, rgba(18,58,94,.10), transparent 60%),
    radial-gradient(600px 300px at 70% 80%, rgba(18,58,94,.08), transparent 60%);
  filter: blur(10px); transform:translateY(0);
}

/* === KPIs / counters === */
#stats{padding:10px 0 34px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;text-align:center}
.kpi-number{font-size:40px;font-weight:900;color:var(--brand);line-height:1}
.kpi-label{margin-top:6px;color:var(--muted);font-weight:700}
@media (max-width:800px){ .kpis{grid-template-columns:1fr} .kpi-number{font-size:34px}}

/* === Yandex map pin overlay === */
.map-frame{position:relative}
.map-pin{position:absolute;left:50%;top:50%;transform:translate(-50%,-100%);width:18px;height:18px;border-radius:50%;
  background:var(--brand);box-shadow:0 6px 12px rgba(0,0,0,.25);}
.map-pin::after{content:"";position:absolute;left:50%;top:100%;transform:translate(-50%,-2px) rotate(45deg);
  width:10px;height:10px;background:var(--brand)}
@keyframes pin-bounce{0%{transform:translate(-50%,-100%)}50%{transform:translate(-50%,-112%)}100%{transform:translate(-50%,-100%)}}
.map-pin{animation:pin-bounce 1.6s ease-in-out infinite}
@media (prefers-reduced-motion: reduce){ .map-pin{animation:none} }