/* ==============================
   ProBuild Construct - Modern Theme
   Author: ChatGPT (update complet Lightbox)
   ============================== */
:root{
  --brand:#0ea5e9;
  --brand-2:#f59e0b;
  --bg:#0b1220;
  --card:#111827;
  --muted:#94a3b8;
  --text:#e5e7eb;
  --white:#ffffff;
  --shadow:rgba(2,6,23,.35);
  --radius:18px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 600px at 10% -20%, rgba(14,165,233,.15), transparent),
              radial-gradient(1000px 500px at 120% 20%, rgba(245,158,11,.12), transparent),
              var(--bg);
}

/* Utility */
.container{ width:min(1200px, 92%); margin:auto; }
.grid{ display:grid; gap:24px; }
.btn{
  display:inline-block; padding:12px 20px; border-radius:12px;
  text-decoration:none; color:var(--white);
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow:0 10px 30px var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.btn:hover{ transform:translateY(-2px); filter:saturate(1.1); box-shadow:0 14px 40px var(--shadow); }

/* Navbar */
.nav{
  position:sticky; top:0; z-index:50; backdrop-filter: blur(10px);
  background: rgba(11,18,32,.6); border-bottom:1px solid rgba(148,163,184,.12);
}
.nav .inner{ display:flex; align-items:center; justify-content:space-between; padding:14px 0; }
.brand{ display:flex; align-items:center; gap:10px; font-weight:800; letter-spacing:.4px; }
.brand .logo{
  width:36px; height:36px; border-radius:10px;
  background: conic-gradient(from 180deg, var(--brand), var(--brand-2));
  box-shadow: 0 6px 18px var(--shadow);
}
.nav a{ color:var(--text); text-decoration:none; margin-left:18px; font-weight:600; opacity:.9; }
.nav a:hover{ color:var(--white); opacity:1; }
.mobile-toggle{ display:none; }

/* Hero */
.hero{ position:relative; padding:100px 0 70px; }
.hero .wrap{ display:grid; grid-template-columns: 1.1fr .9fr; gap:32px; align-items:center; }
.hero h1{ font-size: clamp(34px, 5vw, 54px); margin:0 0 12px; line-height:1.05; }
.hero p{ color:var(--muted); font-size: clamp(16px, 2.2vw, 18px); }
.hero .badge{
  display:inline-flex; align-items:center; gap:8px; padding:8px 12px;
  border-radius:999px; background: rgba(14,165,233,.12); color:#93c5fd;
  border:1px solid rgba(14,165,233,.25); font-weight:700;
}
.hero .card{
  background:linear-gradient(180deg, rgba(17,24,39,.7), rgba(17,24,39,.4));
  border:1px solid rgba(148,163,184,.15); border-radius:var(--radius);
  box-shadow: 0 20px 60px var(--shadow); overflow:hidden;
}
.hero .card img{ width:100%; height:380px; object-fit:cover; display:block; filter:contrast(1.05) saturate(1.05); }
.hero .stats{ display:flex; gap:22px; margin-top:14px; flex-wrap:wrap; }
.stat{ background: rgba(2,6,23,.6); border:1px solid rgba(148,163,184,.12); padding:12px 16px; border-radius:12px; }
.stat b{ font-size:20px; }
.stat span{ color:var(--muted); font-size:12px; }

/* Cards / Sections */
.section{ padding:70px 0; }
.section h2{ font-size: clamp(26px, 3.6vw, 36px); margin:0 0 8px; }
.sub{ color:var(--muted); margin:0 0 26px; }

.cards{ grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); }
.card{
  background: linear-gradient(180deg, rgba(17,24,39,.85), rgba(17,24,39,.6));
  border:1px solid rgba(148,163,184,.12); border-radius:var(--radius);
  padding:20px; box-shadow: 0 10px 30px var(--shadow);
  transform: translateY(0);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover{ transform: translateY(-6px); border-color: rgba(245,158,11,.35); box-shadow: 0 20px 50px var(--shadow); }
.card .icon{ width:46px; height:46px; border-radius:12px; display:grid; place-items:center;
  background: linear-gradient(135deg, var(--brand), var(--brand-2)); font-weight:900; }

/* Gallery */
.gallery{ grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.gallery a{ position:relative; border-radius:14px; overflow:hidden; display:block; border:1px solid rgba(148,163,184,.15); }
.gallery img{ width:100%; height:200px; object-fit:cover; display:block; transition: transform .35s ease; }
.gallery a:hover img{ transform: scale(1.04) rotate(.2deg); }
.gallery a::after{
  content:"Vezi"; position:absolute; inset:auto 12px 12px auto; background:rgba(0,0,0,.55); color:#fff;
  padding:6px 10px; border-radius:999px; font-size:12px; opacity:0; transform:translateY(6px);
  transition: all .25s ease;
}
.gallery a:hover::after{ opacity:1; transform:translateY(0); }

/* Lightbox */
.lightbox{
  position:fixed; inset:0; background:rgba(2,6,23,.85); display:none;
  align-items:center; justify-content:center; padding:30px;
  cursor: zoom-out; /* click pe fundal = închide */
}
.lightbox:target{ display:flex; }
.lightbox img{
  max-width:min(1100px, 92vw); max-height:82vh;
  border-radius:16px; border:1px solid rgba(148,163,184,.25);
  cursor: default;
}
/* X alb vizibil */
.lightbox .close{
  position:fixed; top:24px; right:28px;
  font-size:42px; font-weight:800; line-height:1;
  color:#ffffff !important;
  text-decoration:none;
  z-index:99999;
  background:rgba(0,0,0,.35);
  padding:6px 12px; border-radius:10px;
  transition:background .2s ease, transform .2s ease;
}
.lightbox .close:hover{
  background:rgba(255,255,255,.2);
  transform:scale(1.08);
  cursor:pointer;
}

/* Contact */
.form{ display:grid; gap:14px; grid-template-columns:1fr 1fr; }
.form input, .form textarea{
  width:100%; padding:12px 14px; border-radius:12px; border:1px solid rgba(148,163,184,.2);
  background: rgba(15,23,42,.6); color:var(--text); outline:none;
}
.form textarea{ grid-column:1 / -1; min-height:140px; resize:vertical; }
.form button{ grid-column:1 / -1; }

/* Footer */
.footer{
  padding:26px 0; color:var(--muted);
  border-top:1px solid rgba(148,163,184,.12);
}

/* Animations */
.reveal{ opacity:0; transform: translateY(14px) scale(.98); transition: opacity .6s ease, transform .6s ease; }
.reveal.on{ opacity:1; transform: none; }

/* Responsive */
@media (max-width: 900px){
  .hero .wrap{ grid-template-columns: 1fr; }
  .nav .links{ display:none; }
  .mobile-toggle{ display:inline-flex; align-items:center; gap:8px;
    background:transparent; color:var(--text);
    border:1px solid rgba(148,163,184,.2); padding:8px 12px; border-radius:10px;
  }
}