.password-container,body{position:relative;display:flex}
.text-center,h1{text-align:center}
body{
    min-height:100vh;
    margin:0;
    font-family:Helvetica, Arial, sans-serif;
    background:#1f1f1f; /* Sehr dunkler Hintergrund (fast schwarz) */
    background:linear-gradient(to bottom, #1f1f1f 0%, #000000 100%); /* Verlauf für Tiefe */
    align-items:center;
    justify-content:center;
    overflow-x:hidden;
}
.form-container{
    position:relative;
    z-index:1;
    margin:48px 0;
    max-width:400px;
    width:100%;
    padding:40px 32px 32px;
    background:#2c2c2c; /* Dunkelgrauer Container-Hintergrund */
    border-radius:18px;
    box-shadow:0 10px 30px 0 rgba(0, 0, 0, 0.4), 0 3px 8px 0 rgba(0, 0, 0, 0.2); /* Dunklere Schatten */
    backdrop-filter:blur(2.5px);
    transition:box-shadow .25s,background .18s;
    animation:1s cubic-bezier(.77,0,.18,1.01) fadeInUp;
    border: 1px solid #3a3a3a; /* Dezente dunkle Grenze */
}
@media (max-width:600px){
    .form-container{margin:16px 2vw;padding:20px 4vw;max-width:98vw}
}
@keyframes fadeInUp{
    from{transform:translateY(40px) scale(.98);opacity:0}
    to{transform:none;opacity:1}
}
h1{
    margin:0 0 26px;
    font-size:2.1rem;
    color:#fffc00; /* Snapchat-Gelb für die Überschrift */
    font-weight:900;
    letter-spacing:1px;
    text-shadow:0 2px 8px rgba(255, 252, 0, 0.2); /* Leuchtender Schatten */
    transition:color .18s;
}
.form-group{margin-bottom:22px;position:relative}
.form-group label{
    font-size:1rem;
    color:#e0e0e0; /* Heller Text für Lesbarkeit */
    margin-bottom:7px;
    display:block;
    font-weight:700;
    letter-spacing:.3px;
}
.form-group input{
    width:100%;
    padding:14px 15px;
    border:none;
    border-radius:10px;
    box-sizing:border-box;
    font-size:1.08rem;
    background:#3a3a3a; /* Dunkelgrauer Hintergrund für Eingaben */
    outline:0;
    transition:background .18s,box-shadow .18s;
    color:#ffffff; /* Weißer Eingabetext */
    font-weight:500;
    box-shadow:inset 0 1px 3px rgba(0, 0, 0, 0.2);
}
.form-group input:focus{
    background:#424242; /* Etwas helleres Grau beim Fokus */
    box-shadow:0 0 0 3px #fffc00, inset 0 1px 3px rgba(0, 0, 0, 0.2); /* Gelber Fokus-Ring */
    animation:.45s inputPulse;
}
.password-container{align-items:center}
.password-container input{flex:1;padding-right:42px}
.password-toggle{
    position:absolute;
    right:10px;
    top:50%;
    transform:translateY(-50%);
    font-size:20px;
    cursor:pointer;
    border:none;
    background:0 0;
    color:#b0b0b0; /* Helleres Grau für das Icon */
    transition:color .2s;
    z-index:2;
}
.password-toggle:hover,.text-center{color:#fffc00} /* Gelber Hover-Akzent */
.form-group #submit{
    width:100%;
    background:#fffc00; /* Reines Gelb */
    color:#1f1f1f; /* Dunkler Text auf Gelb */
    border:none;
    padding:15px 0;
    border-radius:12px;
    font-size:1.1rem;
    font-weight:900;
    cursor:pointer;
    box-shadow:0 6px 16px 0 rgba(255, 252, 0, 0.3);
    transition:background .18s,box-shadow .18s,transform .12s;
    margin-top:14px;
    letter-spacing:.5px;
    text-transform:uppercase;
}
.form-group #submit:disabled{
    background:#555;
    color:#999;
    cursor:not-allowed;
    box-shadow:none;
}
.form-group #submit:hover:not(:disabled){
    background:#ffc600;
    box-shadow:0 8px 20px 0 rgba(255, 252, 0, 0.4);
    transform:translateY(-2px) scale(1.01);
}
.text-center{margin-top:21px;font-size:1rem;letter-spacing:.2px}
.text-center a{
    color:#fffc00; /* Gelber Link-Text */
    text-decoration:none;
    font-weight:700;
    transition:color .16s;
}
.text-center a:hover{
    color:#fff;
    text-decoration:underline;
}
#confirm-password-error,#email-message,#username-error,#username-message{
    color:#ff7675; /* Hellere Fehlermeldung für den dunklen Modus */
    font-size:.97rem;
    margin-top:7px;
    min-height:20px;
    display:block;
    font-weight:600;
    letter-spacing:.05px;
    transition:color .18s;
}
@keyframes inputPulse{
    0%{box-shadow:0 0 0 0 rgba(255, 252, 0, 0.3)}
    70%{box-shadow:0 0 0 6px rgba(255, 252, 0, 0.5)}
    100%{box-shadow:0 0 0 3px #fffc00, inset 0 1px 3px rgba(0, 0, 0, 0.2);}
}