*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Segoe UI',sans-serif;
}

body{

    background:url("../assets/images/gym.jpg") center center/cover no-repeat;

    min-height:100vh;

}

.overlay{

    width:100%;
    min-height:100vh;

    background:rgba(0,0,0,.75);

    display:flex;

    justify-content:center;

    align-items:center;

}
.overlay{

    padding:20px;

}

.login-box{

    width:100%;

    max-width:420px;

    box-sizing:border-box;

    padding:40px;

    background:rgba(15,23,42,.85);

    backdrop-filter:blur(18px);

    -webkit-backdrop-filter:blur(18px);

    border:2px solid rgba(250,204,21,.35);

    border-radius:20px;

    box-shadow:
        0 0 20px rgba(250,204,21,.15),
        0 15px 40px rgba(0,0,0,.6);

    transition:.3s ease;

}

.login-box:hover{

    border-color:#facc15;

    box-shadow:
        0 0 25px rgba(250,204,21,.45),
        0 20px 50px rgba(0,0,0,.7);

}
.logo{

    text-align:center;

    margin-bottom:30px;

    padding-bottom:20px;

    border-bottom:1px solid rgba(250,204,21,.25);

}


.logo h1{

    color:#fff;

    margin-bottom:8px;

}

.logo p{

    color:#cbd5e1;

}

.input-group{
    position:relative;
    margin-bottom:20px;
}

.input-group input{

    width:100%;

    padding:14px 14px 14px 50px;

    background:#111827;

    color:#fff;

    border:2px solid #374151;

    border-radius:12px;

    transition:.3s;

}

.input-group input:focus{

    border-color:#facc15;

    background:#1f2937;

    box-shadow:0 0 12px rgba(250,204,21,.45);

    outline:none;

}


.input-group i{

    position:absolute;

    left:18px;

    top:16px;

    color:#facc15;

}

.input-group input{

    width:100%;

    padding:14px 14px 14px 50px;

    border:none;

    border-radius:10px;

    background:#0f172a;

    color:white;

    font-size:15px;

}

.input-group input:focus{

    outline:none;

    border:2px solid #facc15;

}

button{

    width:100%;

    padding:15px;

    border:none;

    border-radius:12px;

    background:linear-gradient(135deg,#facc15,#eab308);

    color:#111827;

    font-size:17px;

    font-weight:bold;

    cursor:pointer;

    transition:.3s;

}

button:hover{

    transform:translateY(-3px);

    box-shadow:0 10px 20px rgba(250,204,21,.45);

}
.gym-logo{
    width:150px;
    height:150px;
    object-fit:contain;
    display:block;
    margin:0 auto 15px;
}


.gym-logo:hover{

    transform:scale(1.05);

    box-shadow:0 0 30px rgba(250,204,21,.7);

}

.links{

    margin-top:20px;

    display:flex;

    justify-content:space-between;

}

.links a{

    color:#facc15;

    text-decoration:none;

    font-size:14px;

}

.links a:hover{

    text-decoration:underline;

}

@media(max-width:500px){

.login-box{

    width:100%;

    padding:30px 22px;

}

.gym-logo{

    width:110px;

    height:110px;

}

}

.error-banner{
    background:rgba(239,68,68,0.18);
    border:1px solid #ef4444;
    color:#fecaca;
    padding:12px 16px;
    border-radius:8px;
    margin-bottom:18px;
    font-size:14px;
    font-weight:600;
    display:flex;
    align-items:center;
    gap:10px;
    text-align:left;
}

.error-banner i{
    color:#ef4444;
    font-size:16px;
}