/* CERtoUSER Contrattualistica • Elegant Lucid Theme */
:root{
  --green:#00B050; --green2:#6CC24A; --red:#E31E24;
  --bg:#0D0F10; --panel:#15181b; --text:#f4f4f4; --line:rgba(0,176,80,.35);
}
body{margin:0;font-family:"Segoe UI",Arial,sans-serif;background:linear-gradient(180deg,var(--bg),#111);color:var(--text)}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:linear-gradient(90deg,var(--green),var(--bg) 70%);box-shadow:0 4px 16px rgba(0,0,0,.55)}
.brand{display:flex;align-items:center;gap:10px}
.logo{height:44px}
.nav{display:flex;gap:10px}
.nav-btn{padding:9px 12px;border-radius:10px;background:#0e1412;color:#fff;text-decoration:none}
.nav-btn:hover{filter:brightness(1.1)}
.container{max-width:1280px;margin:24px auto;padding:0 16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:16px;box-shadow:inset 0 0 20px rgba(0,176,80,.1),0 8px 20px rgba(0,0,0,.5)}
.tabbar{display:flex;gap:10px;margin-bottom:12px}
.tab{padding:8px 14px;border-radius:10px;background:#fff;color:var(--red);cursor:pointer;border:1px solid #ddd}
.tab.active{border-color:var(--red);box-shadow:0 0 0 2px rgba(227,30,36,.2);}
.btn{padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:600}
.btn.primary{background:linear-gradient(145deg,var(--green),var(--green2));color:#fff}
.btn.danger{background:linear-gradient(145deg,var(--red),#a5191e);color:#fff}
.input,textarea{padding:10px;border-radius:8px;border:1px solid #ccc;width:100%}
.files{list-style:none;padding:0;margin:10px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}
.files li{background:#0f1413;padding:10px;border-radius:10px;display:flex;justify-content:space-between;align-items:center;color:#fff}