/* ====== Base ====== */
:root{
  --bg-dark: #0b0b0b;
  --yellow:  #f6b81a;
  --yellow-2:#ffcc33;
  --text:    #ffffff;
  --muted:   #c9c9c9;
  --card:    rgba(0,0,0,.85);
  --ring:    rgba(246,184,26,.45);
  --error:   #ff4d4f;
}

*{box-sizing:border-box}
html,body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: url('assets/sfondo.png') center/cover no-repeat fixed;
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:24px;
}

/* ====== Card ====== */
.form-container{
  width:min(420px, 92vw);
  background:var(--card);
  backdrop-filter: blur(6px);
  border:1px solid #1f1f1f;
  border-radius:16px;
  padding:28px 24px;
  box-shadow:
    0 20px 60px rgba(0,0,0,.45),
    0 0 0 6px rgba(255,255,255,.02),
    0 0 0 10px var(--ring);
}

/* Logo (opzionale) */
.logo{
  display:block;
  width:64px; height:64px;
  margin:0 auto 10px;
  border-radius:50%;
  object-fit:cover;
  border:3px solid var(--yellow);
}

/* Titolo */
h2{
  margin:6px 0 18px;
  text-align:center;
  font-weight:800;
  letter-spacing:.3px;
  color:var(--yellow);
}

/* ====== Form ====== */
form{display:grid; gap:12px}

label{
  font-size:.92rem;
  color:var(--muted);
  margin-top:6px;
}

input[type="text"],
input[type="email"],
input[type="password"]{
  width:100%;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid #2a2a2a;
  background:#0f0f0f;
  color:#fff;
  outline:none;
  transition:border-color .2s, box-shadow .2s, background .2s;
}

/* Placeholder chiaro */
::placeholder{color:#8a8a8a}

/* Focus accessibile */
input:focus{
  border-color:var(--yellow);
  box-shadow:0 0 0 4px rgba(246,184,26,.25);
}

/* Checkbox + Terms */
label.inline{
  display:flex;
  align-items:center;
  gap:10px;
  user-select:none;
}
input[type="checkbox"]{
  width:18px; height:18px;
  accent-color: var(--yellow);
}

/* Pulsante */
button[type="submit"]{
  margin-top:8px;
  width:100%;
  padding:12px 16px;
  background:var(--yellow);
  color:#000;
  font-weight:800;
  border:none;
  border-radius:12px;
  cursor:pointer;
  transition:transform .08s ease, filter .2s ease, background .2s;
  box-shadow:0 10px 30px rgba(246,184,26,.35);
}
button[type="submit"]:hover{filter:brightness(1.05)}
button[type="submit"]:active{transform:translateY(1px)}

/* Link login */
.login-link{
  text-align:center;
  margin-top:6px;
  color:var(--muted);
  font-size:.95rem;
}
.login-link a{
  color:var(--yellow);
  font-weight:700;
  text-decoration:none;
}
.login-link a:hover{color:var(--yellow-2)}

/* Messaggi errore (se li userai) */
.field-error{border-color:var(--error)!important}
.help-error{
  color:var(--error);
  font-size:.85rem;
  margin-top:4px;
}

/* Responsive piccolo */
@media (max-width:420px){
  .form-container{padding:22px 18px;border-radius:14px}
  h2{font-size:1.35rem}
}
  width: 100%;
  padding: 10px;
  background-color: #f6b81a;
  color: #000;
  font-weight: bold;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background-color: #ffcc33;
}
h2:hober {
  text-shadow: 0 0 8px var(--yellow), 0 0 16px var(--yellow);
  transition: text-shadow 0.3s ease-in-out;
}
button[type="submit"] {
  position: relative;
  overflow: hidden;
}

button[type="submit"]::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: 0;
  width: 100%;
  height: 80%;
  background: radial-gradient(circle at center, rgba(255,255,255,0.4), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

button[type="submit"]:hover::after {
  opacity: 1;
}
input:hover {
  border -color: var(--yellow);
}
/* --- Checkbox gialla con spunta classica --- */
input[type="checkbox"] {
  appearance: none;              /* Nasconde quella di default */
  width: 18px;
  height: 18px;
  border: 2px solid var(--yellow);
  border-radius: 4px;
  background: transparent;
  position: relative;
  cursor: pointer;
  transition: all 0.2s ease;
}

/* Spunta visibile quando selezionata */
input[type="checkbox"]:checked::after {
  content: "✔";
  position: absolute;
  top: -2px;
  left: 2px;
  font-size: 16px;
  color: var(--yellow);
}

/* Effetto al passaggio */
input[type="checkbox"]:hover {
  box-shadow: 0 0 6px var(--yellow);
}