/* ============================================
   ELETTROIMPIANTI — Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Space+Grotesk:wght@600;700&display=swap');

*{box-sizing:border-box;margin:0;padding:0}

:root{
  /* Colori */
  --primary:#0a2540;
  --primary-600:#0d47a1;
  --primary-400:#2563eb;
  --accent:#ffb800;
  --accent-dark:#e6a500;
  --wa:#25d366;
  --text:#0f172a;
  --text-muted:#64748b;
  --border:#e2e8f0;
  --bg:#ffffff;
  --bg-soft:#f8fafc;
  --bg-dark:#0a2540;

  /* Spaziature */
  --radius:14px;
  --radius-sm:8px;
  --radius-lg:24px;
  --shadow-sm:0 1px 3px rgba(10,37,64,.06),0 1px 2px rgba(10,37,64,.04);
  --shadow:0 4px 20px rgba(10,37,64,.08);
  --shadow-lg:0 20px 40px rgba(10,37,64,.12);

  /* Transizioni */
  --t:.25s cubic-bezier(.4,0,.2,1);
}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.65;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--primary-600);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--primary-400)}

h1,h2,h3,h4{font-family:'Space Grotesk','Inter',sans-serif;font-weight:700;line-height:1.2;letter-spacing:-.02em;color:var(--primary)}
h1{font-size:clamp(2rem,6vw,3.5rem)}
h2{font-size:clamp(1.6rem,4vw,2.5rem);margin-bottom:16px}
h3{font-size:1.15rem;margin-bottom:8px}
p{color:var(--text-muted)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.container-narrow{max-width:820px}

/* ============================================
   HEADER
   ============================================ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(16px) saturate(180%);
  -webkit-backdrop-filter:blur(16px) saturate(180%);
  border-bottom:1px solid transparent;
  transition:all var(--t);
}
.site-header.scrolled{
  border-bottom-color:var(--border);
  box-shadow:0 2px 12px rgba(10,37,64,.05);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;max-width:1200px;margin:0 auto;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;font-size:1.2rem;color:var(--primary);
  letter-spacing:-.03em;
}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:1.2rem;font-weight:800;
  box-shadow:0 4px 12px rgba(255,184,0,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1}
.logo-text small{font-size:.65rem;font-weight:500;color:var(--text-muted);letter-spacing:.08em;text-transform:uppercase;font-family:'Inter',sans-serif}

.menu-toggle{
  background:none;border:0;cursor:pointer;
  width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:1.4rem;
  transition:background var(--t);
}
.menu-toggle:hover{background:var(--bg-soft)}

.main-nav{
  position:fixed;top:72px;left:0;right:0;
  background:#fff;padding:16px 20px 24px;
  display:none;flex-direction:column;gap:4px;
  box-shadow:0 20px 40px rgba(10,37,64,.1);
  border-top:1px solid var(--border);
}
.main-nav.open{display:flex}
.main-nav a{
  padding:14px 16px;border-radius:10px;
  font-weight:500;color:var(--text);
  transition:all var(--t);
}
.main-nav a:hover{background:var(--bg-soft);color:var(--primary-600)}
.main-nav a.active{color:var(--primary-600);background:var(--bg-soft);font-weight:600}
.main-nav .btn-wa{margin-top:8px;text-align:center}

@media(min-width:900px){
  .menu-toggle{display:none}
  .main-nav{
    position:static;display:flex;flex-direction:row;
    background:none;box-shadow:none;padding:0;gap:6px;
    border:0;
  }
  .main-nav a{padding:8px 14px}
  .main-nav a.btn-wa{margin:0 0 0 6px;padding:10px 18px;color:#fff}
}

/* ============================================
   BOTTONI
   ============================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;
  font-family:'Inter',sans-serif;font-weight:600;font-size:.95rem;
  border:0;cursor:pointer;transition:all var(--t);
  text-align:center;text-decoration:none;white-space:nowrap;
}
.btn-primary{
  background:var(--accent);color:var(--primary);
  box-shadow:0 4px 14px rgba(255,184,0,.3);
}
.btn-primary:hover{
  background:var(--accent-dark);transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(255,184,0,.4);color:var(--primary);
}
.btn-dark{background:var(--primary);color:#fff}
.btn-dark:hover{background:var(--primary-600);transform:translateY(-2px);color:#fff}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.4)}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}
.btn-wa{background:var(--wa);color:#fff;box-shadow:0 4px 14px rgba(37,211,102,.3)}
.btn-wa:hover{background:#1eb85a;transform:translateY(-2px);color:#fff}
.btn-lg{padding:16px 32px;font-size:1rem}
.btn-block{width:100%}

/* ============================================
   HERO SLIDER
   ============================================ */
.hero-slider{
  position:relative;min-height:min(88vh,720px);
  display:flex;align-items:center;
  overflow:hidden;background:var(--primary);
}
.slides{position:absolute;inset:0}
.slide{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:0;transition:opacity 1.4s ease;
}
.slide.active{opacity:1}
.slide::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(10,37,64,.85) 0%,rgba(10,37,64,.55) 60%,rgba(13,71,161,.7) 100%);
}

.hero-content{
  position:relative;z-index:2;color:#fff;
  padding:100px 20px 80px;max-width:760px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:100px;
  background:rgba(255,184,0,.15);
  border:1px solid rgba(255,184,0,.3);
  color:var(--accent);
  font-size:.8rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
  margin-bottom:24px;
  backdrop-filter:blur(8px);
}
.hero-eyebrow::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 12px var(--accent);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.6;transform:scale(1.3)}
}
.hero-content h1{
  color:#fff;font-size:clamp(2rem,6.5vw,3.75rem);
  line-height:1.08;margin-bottom:20px;letter-spacing:-.03em;
}
.hero-content h1 .highlight{
  background:linear-gradient(180deg,transparent 65%,rgba(255,184,0,.35) 65%);
  padding:0 4px;
}
.hero-content > p{
  color:rgba(255,255,255,.85);font-size:clamp(1rem,2.5vw,1.15rem);
  margin-bottom:36px;max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

.slider-dots{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
  display:flex;gap:8px;z-index:3;
}
.dot{
  width:8px;height:8px;border-radius:100px;
  background:rgba(255,255,255,.4);cursor:pointer;
  transition:all var(--t);
}
.dot.active{background:var(--accent);width:32px}

/* ============================================
   SEZIONI
   ============================================ */
section{padding:80px 0}
.section-header{text-align:center;max-width:680px;margin:0 auto 48px}
.section-eyebrow{
  display:inline-block;
  padding:6px 14px;border-radius:100px;
  background:var(--bg-soft);
  color:var(--primary-600);
  font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  margin-bottom:16px;
}
.section-header p{font-size:1.05rem;margin-top:12px}

/* ============================================
   CARDS
   ============================================ */
.cards{
  display:grid;grid-template-columns:1fr;gap:20px;
}
@media(min-width:640px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(min-width:960px){.cards{grid-template-columns:repeat(4,1fr)}}
.cards-3{grid-template-columns:1fr}
@media(min-width:768px){.cards-3{grid-template-columns:repeat(3,1fr)}}

.card{
  background:#fff;border-radius:var(--radius);
  padding:28px 24px;
  border:1px solid var(--border);
  transition:all var(--t);
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--primary-400));
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.card:hover::before{transform:scaleX(1)}
.card-icon{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,#fff8e1,#ffecb3);
  display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;margin-bottom:18px;
}
.card h3{color:var(--primary);font-size:1.1rem;margin-bottom:8px}
.card p{color:var(--text-muted);font-size:.95rem;line-height:1.6}

/* Lavori card (con immagine) */
.lavoro-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.lavoro-card img{
  width:100%;height:220px;object-fit:cover;
  transition:transform .5s cubic-bezier(.4,0,.2,1);
}
.lavoro-card:hover img{transform:scale(1.06)}
.lavoro-card-body{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column}
.lavoro-card .tag{
  display:inline-block;align-self:flex-start;
  padding:4px 10px;border-radius:100px;
  background:var(--bg-soft);color:var(--primary-600);
  font-size:.72rem;font-weight:600;letter-spacing:.03em;
  text-transform:uppercase;margin-bottom:10px;
}
.lavoro-card h3{padding:0;margin-bottom:8px}
.lavoro-card p{padding:0;color:var(--text-muted);font-size:.92rem;flex:1}
.lavoro-card .arrow{
  margin-top:14px;color:var(--primary-600);font-weight:600;font-size:.9rem;
  display:flex;align-items:center;gap:6px;
}
.lavoro-card:hover .arrow{gap:10px}

/* ============================================
   FOOTER
   ============================================ */
.site-footer{
  background:var(--bg-dark);color:#cbd5e1;
  padding:72px 0 0;margin-top:80px;
  position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:-50%;right:-10%;
  width:500px;height:500px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,184,0,.08),transparent 70%);
  pointer-events:none;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:40px;
  position:relative;z-index:1;
}
@media(min-width:768px){.footer-grid{grid-template-columns:1.3fr 1fr 1.2fr}}
.site-footer h3,.site-footer h4{
  color:#fff;font-size:1.05rem;margin-bottom:16px;
  font-family:'Inter',sans-serif;font-weight:600;
}
.site-footer p{color:#94a3b8;font-size:.92rem;margin-bottom:8px;line-height:1.7}
.site-footer a{color:var(--accent);font-weight:500}
.site-footer a:hover{color:#ffd54f}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.15rem}
.footer-brand .logo-mark{background:var(--accent)}

.copyright{
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:56px;padding:24px 0;text-align:center;
  font-size:.82rem;color:#64748b;
}

/* ============================================
   WHATSAPP FLOATING
   ============================================ */
.wa-float{
  position:fixed;bottom:20px;right:20px;
  width:60px;height:60px;border-radius:50%;
  background:var(--wa);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:1.7rem;
  box-shadow:0 8px 24px rgba(37,211,102,.4),0 0 0 0 rgba(37,211,102,.5);
  z-index:99;
  transition:transform var(--t);
  animation:waPulse 2.5s infinite;
}
.wa-float:hover{transform:scale(1.1);color:#fff}
@keyframes waPulse{
  0%{box-shadow:0 8px 24px rgba(37,211,102,.4),0 0 0 0 rgba(37,211,102,.5)}
  70%{box-shadow:0 8px 24px rgba(37,211,102,.4),0 0 0 16px rgba(37,211,102,0)}
  100%{box-shadow:0 8px 24px rgba(37,211,102,.4),0 0 0 0 rgba(37,211,102,0)}
}

/* ============================================
   FORM
   ============================================ */
form{max-width:520px;margin:0 auto}
.form-row{margin-bottom:18px}
label{
  display:block;font-weight:600;margin-bottom:8px;
  font-size:.88rem;color:var(--primary);
}
input,textarea,select{
  width:100%;padding:14px 16px;
  border:1.5px solid var(--border);border-radius:12px;
  font-size:.95rem;font-family:inherit;
  background:#fff;color:var(--text);
  transition:all var(--t);
}
input:focus,textarea:focus,select:focus{
  outline:none;border-color:var(--primary-400);
  box-shadow:0 0 0 4px rgba(37,99,235,.1);
}
textarea{resize:vertical;min-height:120px}

.alert{
  padding:14px 18px;border-radius:12px;
  margin-bottom:20px;font-size:.92rem;font-weight:500;
  background:#eff6ff;color:var(--primary-600);
  border:1px solid #bfdbfe;
}
.alert-error{background:#fef2f2;color:#b91c1c;border-color:#fecaca}
.alert-ok{background:#f0fdf4;color:#15803d;border-color:#bbf7d0}

/* ============================================
   TABLE ADMIN
   ============================================ */
table{width:100%;border-collapse:collapse;font-size:.92rem}
th{
  text-align:left;padding:12px;font-weight:600;
  color:var(--primary);font-size:.8rem;text-transform:uppercase;
  letter-spacing:.05em;border-bottom:2px solid var(--border);
}
td{padding:14px 12px;border-bottom:1px solid var(--border);color:var(--text)}
tr:hover td{background:var(--bg-soft)}

.admin-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:900px){.admin-grid{grid-template-columns:400px 1fr}}
.admin-grid > div > h3{
  margin-bottom:18px;padding-bottom:12px;
  border-bottom:2px solid var(--border);
}

/* ============================================
   ANIMAZIONI SCROLL
   ============================================ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

/* ============================================
   UTILITIES
   ============================================ */
.text-center{text-align:center}
.mt-2{margin-top:16px}
.mt-4{margin-top:32px}
.mb-0{margin-bottom:0}