:root{
  --bg:#0b1220; --ink:#0f172a; --text:#0f172a; --muted:#475569;
  --brand:#2563eb; --brand-2:#22c55e; --accent:#f1f5f9;
  --card:#ffffff; --border:#e2e8f0;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Arial, sans-serif;color:var(--text);background:#fff;line-height:1.5}
img,svg{max-width:100%;height:auto;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 16px}
.flex{display:flex;align-items:center}
.between{justify-content:space-between}

a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

.topbar{background:#0f172a;color:#fff;font-size:14px}
.topbar .brand{display:flex;align-items:center;gap:10px;padding:8px 0}
.logo{width:28px;height:28px}
.brand-name{font-weight:800;font-size:16px}
.brand-tag{opacity:.8;margin-left:6px}
.topbar .contact{display:flex;gap:8px;flex-wrap:wrap;padding:8px 0}
.topbar .contact a{color:#fff;padding:6px 10px;border:1px solid rgba(255,255,255,.18);border-radius:10px;display:inline-flex;align-items:center;gap:6px}

.header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border);z-index:20}
.nav{display:flex;gap:10px;flex-wrap:wrap;padding:12px 0;align-items:center}
.nav a.btn{text-decoration:none}

.hero{background:linear-gradient(180deg,#f8fafc,#fff);padding:36px 0 28px}
.hero .lead{max-width:680px}
h1{margin:0 0 12px;font-size:clamp(26px,5vw,40px);line-height:1.2}
h2{margin:0 0 12px;font-size:clamp(20px,4vw,28px)}
p{margin:0 0 10px;color:var(--muted)}

.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:720px){.grid-2{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:16px}
.badge{display:inline-block;padding:3px 8px;border-radius:999px;background:#e0f2fe;color:#0369a1;font-weight:600;font-size:12px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border-radius:10px;border:1px solid var(--border);cursor:pointer;user-select:none;touch-action:manipulation}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-ghost{background:transparent}
.btn:hover{filter:brightness(.98)}

.features .chip{border:1px solid var(--border);border-radius:999px;padding:8px 12px;display:inline-flex;align-items:center;gap:8px}
.features .list{display:flex;flex-wrap:wrap;gap:8px}

.form{margin-top:8px}
.form__group{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.form__group input,.form__group select,.form__group textarea{padding:12px 12px;border:1px solid var(--border);border-radius:10px;font:inherit}
.form__group input[type="tel"],.form__group input[name="phone"]{letter-spacing:.04em}
.form__actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.hint{color:var(--muted)}

a[href^="tel"]{word-break:break-word;overflow-wrap:anywhere}

.faq details{background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px;margin-bottom:10px}
.faq summary{font-weight:600;cursor:pointer}

.footer{background:#0f172a;color:#fff;padding:20px 0;margin-top:40px}
.footer a{color:#fff;text-decoration:none}

.sticky{position:fixed;left:0;right:0;bottom:0;background:#0f172a;display:flex;justify-content:space-between;padding:10px 14px;gap:8px;padding-bottom:calc(10px + env(safe-area-inset-bottom));box-shadow:0 -10px 35px rgba(0,0,0,.2)}
.sticky a{flex:1;text-align:center;color:#fff;text-decoration:none;border:1px solid rgba(255,255,255,.18);padding:10px;border-radius:10px}
@media (min-width:900px){.sticky{display:none}}

:focus-visible{outline:2px solid var(--brand);outline-offset:2px}