:root{ --ink:#1f2430; --muted:#6b7280; --bg:#f6f7f9; --card:#fff;
       --accent:#2563eb; --border:#e5e7eb; }
*{box-sizing:border-box} body{margin:0;font-family:system-ui,Segoe UI,Arial,sans-serif;
  background:var(--bg);color:var(--ink)}
.topbar{display:flex;justify-content:space-between;align-items:center;
  background:var(--card);border-bottom:1px solid var(--border);padding:12px 20px}
.brand{font-weight:700;font-size:18px}.logo{color:var(--accent)}
nav a{margin-left:16px;text-decoration:none;color:var(--ink)}
nav a.muted{color:var(--muted)}
.wrap{max-width:960px;margin:24px auto;padding:0 16px}
.muted{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:18px;margin-bottom:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.login{max-width:360px;margin:8vh auto}
.login h1{margin:0 0 4px} label{display:block;margin:12px 0;font-size:14px}
input{width:100%;padding:10px;border:1px solid var(--border);border-radius:8px;margin-top:4px}
button{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:11px 16px;
  font-weight:600;cursor:pointer;width:100%}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:12px}
.flash.danger{background:#fee2e2;color:#991b1b}.flash.warning{background:#fef3c7;color:#92400e}
.flash.success{background:#dcfce7;color:#166534}
.pipix{position:fixed;right:20px;bottom:20px;width:52px;height:52px;border-radius:50%;
  background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:24px;box-shadow:0 6px 18px rgba(0,0,0,.18);cursor:pointer}

/* Fase 1 — form e bottoni */
.btn,.btn-ghost{display:inline-block;text-decoration:none;border-radius:8px;padding:9px 14px;font-weight:600;cursor:pointer;font-size:14px}
.btn{background:var(--accent);color:#fff}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--ink)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.row2{grid-template-columns:1fr}}
fieldset{border:1px solid var(--border);border-radius:10px;margin:14px 0;padding:12px}
legend{font-weight:600;font-size:13px;padding:0 6px;color:var(--muted)}
h2{font-size:18px;margin-top:22px}