/* ============================================================
   DRS Italy - sito aziendale (bozza). Tema scuro, accento verde.
   Foto: segnaposto da picsum.photos -> sostituire con foto reali.
   ============================================================ */
:root{
  --bg:#060f0a; --bg2:#0a160f; --surface:#0d1c14; --surface2:#11241a;
  --accent:#0f8a4f; --accent2:#2fbe7d; --accent-dark:#0a5e37;
  --red:#ce2b37; --red2:#e23b47;
  --text:#eef5f1; --muted:#94aea2; --border:#1a2b22;
  --radius:14px; --maxw:1140px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,Arial,sans-serif; background:var(--bg); color:var(--text);
  line-height:1.6; -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
h1,h2,h3,.brand{font-family:'Poppins','Inter',sans-serif;font-weight:600;line-height:1.15}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.accent{color:var(--accent2)}
/* logo: PNG con sfondo gia' reso trasparente */
.brand-logo{height:42px;width:auto;max-width:210px;display:block}
.brand-logo.big{height:58px;width:auto;max-width:260px;margin:0 auto 12px}
/* striscia tricolore (verde-bianco-rosso) */
.tricolore{height:4px;width:100%;background:linear-gradient(90deg,#1aa35e 0 33.33%,#ffffff 33.33% 66.66%,var(--red) 66.66% 100%)}
/* logo grande nell'hero */
.hero-logo{height:104px;width:auto;max-width:84%;display:block;margin:0 auto 22px;filter:drop-shadow(0 6px 22px rgba(0,0,0,.65))}
/* fascia brand ripetuta a meta' pagina */
.brand-band{text-align:center;padding:56px 24px;background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.brand-band img{height:126px;width:auto;max-width:88%;display:inline-block;margin-bottom:12px}
.brand-band .claim{color:var(--muted);font-size:15px;letter-spacing:.4px}
/* bottone rosso (tricolore) */
.btn-red{background:var(--red);color:#fff;border:1px solid var(--red)}
.btn-red:hover{background:var(--red2);transform:translateY(-2px)}
/* pulsante WhatsApp flottante */
.wa-float{position:fixed;right:20px;bottom:20px;width:58px;height:58px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;font-size:30px;box-shadow:0 6px 20px rgba(0,0,0,.35);z-index:60;transition:transform .2s}
.wa-float:hover{transform:scale(1.08)}

/* ---- bottoni ---- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;
  font-weight:500;font-size:15px;border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap}
.btn-primary{background:var(--accent);color:#04140e}
.btn-primary:hover{background:var(--accent2);transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.25);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent2);color:var(--accent2)}

/* ---- nav ---- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;transition:.3s;backdrop-filter:blur(8px);background:rgba(10,15,13,0)}
.nav.scrolled{background:rgba(10,15,13,.92);border-bottom:1px solid var(--border);padding:11px 24px}
.nav .brand{font-size:22px;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--muted);font-size:15px;transition:.2s}
.nav-links a:hover{color:var(--text)}
.nav-links .btn{padding:9px 18px;font-size:14px}
.burger{display:none;background:none;border:0;color:var(--text);font-size:26px;cursor:pointer}

/* ---- hero ---- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;
  transition:opacity 1.6s ease;animation:kenburns 18s ease infinite}
.hero-bg img.active{opacity:1}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,12,11,.72),rgba(8,12,11,.82))}
@keyframes kenburns{0%{transform:scale(1)}100%{transform:scale(1.12)}}
.hero-inner{position:relative;z-index:2;padding:90px 24px;max-width:780px}
.eyebrow{display:inline-block;letter-spacing:3px;text-transform:uppercase;font-size:13px;color:var(--accent2);margin-bottom:18px}
.hero h1{font-size:clamp(34px,6vw,62px)}
.hero p{color:#cdded7;font-size:clamp(16px,2.4vw,20px);margin:18px auto 30px;max-width:620px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.scrolldown{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:var(--muted);font-size:26px;z-index:2;animation:bob 1.8s infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ---- sezioni ---- */
section{padding:96px 0}
.kicker{color:var(--accent2);font-weight:500;letter-spacing:1px;text-transform:uppercase;font-size:13px}
.section-title{font-size:clamp(26px,4vw,40px);margin:10px 0 18px}
.lead{color:var(--muted);font-size:17px;max-width:640px}

.about{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.about img{width:100%;border-radius:var(--radius);border:1px solid var(--border)}

/* ---- card servizi ---- */
.grid{display:grid;gap:18px}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:.25s}
.card:hover{transform:translateY(-4px);border-color:var(--accent-dark);background:var(--surface2)}
.card .ic{width:52px;height:52px;border-radius:13px;background:rgba(29,158,117,.14);color:var(--accent2);
  display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}

/* ---- galleria ---- */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.gallery a{position:relative;overflow:hidden;border-radius:var(--radius);aspect-ratio:4/3;border:1px solid var(--border)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:.5s}
.gallery a:hover img{transform:scale(1.08)}

/* ---- contatti ---- */
.contact{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.contact .row{display:flex;gap:12px;align-items:flex-start}
.contact .ic{color:var(--accent2);font-size:22px;margin-top:2px}
.contact .row small{color:var(--muted);display:block;font-size:13px}

/* ---- footer ---- */
footer{border-top:1px solid var(--border);padding:34px 0;color:var(--muted);font-size:14px;text-align:center;background:var(--bg2)}

/* ---- reveal animazione scroll ---- */
.reveal{opacity:0;transform:translateY(28px);transition:.7s ease}
.reveal.visible{opacity:1;transform:none}

/* ---- pagine login / scelta ---- */
.center-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(1200px 600px at 50% -10%,rgba(29,158,117,.16),transparent),var(--bg)}
.panel{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:38px 32px;text-align:center}
.panel .brand{font-size:26px;margin-bottom:6px}
.panel .sub{color:var(--muted);margin-bottom:26px;font-size:15px}
.field{text-align:left;margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input{width:100%;padding:13px 14px;border-radius:11px;border:1px solid var(--border);
  background:var(--bg2);color:var(--text);font-size:15px;outline:none;transition:.2s}
.field input:focus{border-color:var(--accent)}
.err{color:#fca5a5;font-size:14px;min-height:20px;margin-bottom:8px}
.muted-link{color:var(--muted);font-size:14px;display:inline-block;margin-top:18px}
.muted-link:hover{color:var(--accent2)}

.choose{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:640px;width:100%}
.choose .opt{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:40px 24px;text-align:center;transition:.25s;cursor:pointer}
.choose .opt:hover{transform:translateY(-5px);border-color:var(--accent);background:var(--surface2)}
.choose .opt .ic{font-size:48px;color:var(--accent2);margin-bottom:14px}
.choose .opt h3{font-size:22px}
.choose .opt p{color:var(--muted);font-size:14px;margin-top:6px}

/* ---- responsive ---- */
@media(max-width:820px){
  .about{grid-template-columns:1fr}
  .nav-links{position:fixed;inset:0 0 0 auto;width:min(78vw,320px);flex-direction:column;justify-content:center;
    background:var(--bg2);border-left:1px solid var(--border);transform:translateX(100%);transition:.3s;gap:22px}
  .nav-links.open{transform:none}
  .burger{display:block;z-index:60}
  .choose{grid-template-columns:1fr}
}