/* ===== Neon Arena - core styles ===== */
:root{--bg:#080B08;--bg2:#111611;--neon:#39FF14;--acc:#8CFF66;--text:#F5F7F5;--muted:#A3ADA3;--line:#1f3a1a;--side:260px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Segoe UI",Roboto,Arial,sans-serif;line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--acc)}
:focus-visible{outline:3px solid var(--neon);outline-offset:2px}
h1,h2,h3{font-family:Impact,"Arial Black",sans-serif;letter-spacing:.04em;line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2.2rem,6vw,4rem)} h2{font-size:clamp(1.6rem,3.5vw,2.4rem);color:var(--neon)}

/* Sidebar */
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--side);background:var(--bg2);border-right:1px solid var(--line);padding:20px 16px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;z-index:50}
.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--text);font-weight:800}
.brand small{display:block;color:var(--muted);font-weight:400;font-size:.75rem}
.sidebar ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.sidebar nav a{display:flex;gap:12px;align-items:center;padding:10px 12px;border-radius:10px;color:var(--text);text-decoration:none;transition:.2s}
.sidebar nav a:hover{background:#17221a}
.sidebar nav a.active{background:var(--neon);color:#000;font-weight:700;box-shadow:0 0 14px rgba(57,255,20,.45)}
.social{margin-top:auto;display:flex;gap:10px}
.topbar{display:none}
.overlay{display:none}
.content{margin-left:var(--side);min-width:0}

/* Buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:700;text-decoration:none;text-align:center;border:2px solid var(--neon);cursor:pointer;font-size:1rem;transition:.2s}
.btn-primary{background:var(--neon);color:#000}
.btn-primary:hover{box-shadow:0 0 18px rgba(57,255,20,.6);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--neon)}
.btn-ghost:hover{background:rgba(57,255,20,.12)}

/* Hero + banners */
.hero,.banner,.cta{position:relative;overflow:hidden}
.hero{min-height:80vh;display:flex;align-items:center}
.hero>img,.banner>img,.cta>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero::after,.banner::after,.cta::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,11,8,.92),rgba(8,11,8,.45));z-index:1}
.hero-txt,.banner-txt{position:relative;z-index:2;padding:48px clamp(20px,5vw,64px);max-width:720px}
.banner,.cta{min-height:320px;display:flex;align-items:center}
.status{color:var(--acc);border:1px solid var(--line);display:inline-block;padding:4px 12px;border-radius:99px;background:rgba(17,22,17,.7)}

/* Sections / cards */
.sec{padding:64px clamp(20px,5vw,64px)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:rgba(17,22,17,.85);border:1px solid var(--line);border-radius:14px;padding:16px;transition:.25s}
.card:hover{border-color:var(--neon);box-shadow:0 0 16px rgba(57,255,20,.25);transform:translateY(-4px)}
.card>img:not(.ico){width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px;margin-bottom:12px}
.ico{margin-bottom:10px}
.spec,.note{color:var(--muted);font-size:.9rem}
.price{text-align:center}.amt{font-size:2rem;color:var(--neon);font-weight:800}
.rec{border:2px solid var(--neon);box-shadow:0 0 22px rgba(57,255,20,.35)}
.badge{color:#000;background:var(--acc);display:inline-block;padding:2px 12px;border-radius:99px;font-weight:700;font-size:.8rem}
.gallery .g-item{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;cursor:zoom-in;border:1px solid var(--line);transition:.25s}
.gallery .g-item:hover{transform:scale(1.03);border-color:var(--neon)}
.why{list-style:none;padding:0;display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.why li{padding:16px;background:var(--bg2);border-left:3px solid var(--neon);border-radius:8px}
.cta{min-height:360px;text-align:center;justify-content:center}.cta .banner-txt{margin:auto}

/* Contact form */
.two{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.info{list-style:none;padding:0}.info li{margin-bottom:10px}
form{display:grid;gap:6px}
input,textarea{background:var(--bg2);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:12px;font:inherit;width:100%}
.err{color:#ff7b7b;font-size:.85rem;min-height:1.1em}
.legal{max-width:820px}
.footer{padding:28px clamp(20px,5vw,64px);border-top:1px solid var(--line);color:var(--muted);text-align:center}

/* Misc */
.to-top{position:fixed;right:18px;bottom:18px;width:44px;height:44px;border-radius:50%;border:2px solid var(--neon);background:var(--bg2);color:var(--neon);font-size:1.3rem;cursor:pointer;opacity:0;pointer-events:none;transition:.25s;z-index:40}
.to-top.show{opacity:1;pointer-events:auto}
dialog{background:transparent;border:0;padding:0;max-width:92vw}
dialog::backdrop{background:rgba(0,0,0,.85)}
#lbImg{max-height:88vh;border-radius:12px;border:2px solid var(--neon)}
#lbClose{position:absolute;top:-8px;right:-8px;width:38px;height:38px;border-radius:50%;background:var(--neon);border:0;font-size:1.4rem;cursor:pointer}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s,transform .6s}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}