*{margin:0;padding:0;box-sizing:border-box;}

body{
    font-family:'Poppins',sans-serif;
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    background:radial-gradient(circle at top left, rgba(255,255,255,0.22), transparent 25%),
              radial-gradient(circle at bottom right, rgba(13,71,161,0.22), transparent 32%),
              linear-gradient(135deg,#0d47a1,#42a5f5);
    overflow:hidden;
    padding:20px 0;
}

.login-box{
    background:rgba(255,255,255,0.98);
    border:1px solid rgba(255,255,255,0.85);
    backdrop-filter:blur(16px);
    padding:40px 36px 28px;
    border-radius:28px;
    width:100%;
    max-width:420px;
    box-shadow:0 35px 90px rgba(13,71,161,0.18);
    position:relative;
    overflow:hidden;
    animation:fadeUp 0.7s ease;
}

.login-box::before{
    content:'';
    position:absolute;
    top:-52px;
    right:-46px;
    width:130px;
    height:130px;
    border-radius:50%;
    background:rgba(255,255,255,0.22);
}

.login-box h2{
    text-align:center;
    margin-bottom:12px;
    color:#0d47a1;
    letter-spacing:0.8px;
    font-size:1.95rem;
}

.login-subtitle{
    margin:0 auto 26px;
    text-align:center;
    color:#4c627b;
    font-size:0.96rem;
    line-height:1.6;
    max-width:320px;
}

form{
    display:grid;
    gap:16px;
}

input{
    width:100%;
    padding:14px 16px;
    border:1px solid rgba(13,71,161,0.16);
    border-radius:16px;
    background:#eef6ff;
    transition:all 0.3s ease;
    font-size:0.98rem;
    color:#1d3053;
    animation:slideUp 0.6s ease 0.3s both;
    box-shadow:inset 0 1px 3px rgba(13,71,161,0.05);
}

input::placeholder{
    color:#7b8fa8;
}

label{
    display:block;
    margin-bottom:8px;
    font-size:0.95rem;
    color:#41526d;
    font-weight:600;
}

.input-group{
    display:grid;
    gap:8px;
}

.password-field{
    display:flex;
    align-items:center;
    background:#eef6ff;
    border:1px solid rgba(13,71,161,0.16);
    border-radius:16px;
    overflow:hidden;
}

.password-field input{
    border:none;
    border-radius:0;
    background:transparent;
    padding:14px 16px;
    width:100%;
    margin:0;
    box-shadow:none;
}

.password-toggle{
    border:none;
    background:rgba(13,71,161,0.08);
    color:#0d47a1;
    padding:0 16px;
    height:100%;
    cursor:pointer;
    font-weight:700;
    transition:background 0.2s ease;
}

.password-toggle:hover{
    background:rgba(13,71,161,0.13);
}

input:focus,
.password-field input:focus{
    border-color:#0d47a1;
    outline:none;
    box-shadow:0 0 0 4px rgba(13,71,161,0.15);
    transform:scale(1.01);
}

button{
    width:100%;
    padding:14px 16px;
    margin-top:12px;
    background:#0d47a1;
    color:white;
    border:none;
    border-radius:16px;
    cursor:pointer;
    font-weight:700;
    letter-spacing:0.7px;
    transition:all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow:0 10px 25px rgba(13,71,161,0.18);
    animation:slideUp 0.6s ease 0.4s both;
}

button:hover{
    background:#1565c0;
    transform:translateY(-2px);
    box-shadow:0 12px 28px rgba(13,71,161,0.28);
}

button:active{
    transform:translateY(0);
}

.error{
    color:#b71c1c;
    text-align:center;
    margin-bottom:14px;
    background:#ffebee;
    padding:10px 12px;
    border-radius:12px;
    font-size:0.95rem;
    animation:slideDown 0.4s ease;
    border-left:4px solid #b71c1c;
}

.footer-note{
    margin-top:18px;
    font-size:0.9rem;
    color:#5b6d88;
    text-align:center;
    animation:fadeIn 0.8s ease 0.5s both;
}

@keyframes slideUp{
    from{opacity:0;transform:translateY(30px);}
    to{opacity:1;transform:translateY(0);}
}

@keyframes slideDown{
    from{opacity:0;transform:translateY(-20px);}
    to{opacity:1;transform:translateY(0);}
}

@keyframes fadeIn{
    from{opacity:0;}
    to{opacity:1;}
}

@keyframes fadeUp{
    from{opacity:0; transform:translateY(32px);}
    to{opacity:1; transform:translateY(0);}
}

/* TABLET - 768px and below */
@media(max-width:768px){
    .login-box{width:90%;max-width:450px;padding:32px 24px;}
    .login-box h2{font-size:1.6rem;margin-bottom:24px;}
    label{font-size:0.95rem;}
    input[type="text"],input[type="password"]{padding:12px;font-size:16px;border-radius:12px;margin-bottom:14px;}
    .btn{padding:12px 18px;font-size:0.95rem;margin-top:8px;}
}

/* MOBILE - 640px and below */
@media(max-width:640px){
    body{padding:16px;}
    .login-box{width:100%;max-width:100%;padding:24px 16px;}
    .login-box h2{font-size:1.4rem;margin-bottom:20px;}
    label{font-size:0.9rem;margin-bottom:6px;}
    input[type="text"],input[type="password"]{padding:11px;font-size:16px;border-radius:10px;margin-bottom:12px;width:100%;}
    .btn{padding:11px 16px;font-size:0.9rem;width:100%;margin-top:6px;}
    .message{padding:12px 14px;font-size:0.9rem;border-radius:10px;}
}

/* SMALL MOBILE - 480px and below */
@media(max-width:480px){
    .login-box{padding:20px 14px;}
    .login-box h2{font-size:1.2rem;margin-bottom:16px;}
    label{font-size:0.85rem;}
    input[type="text"],input[type="password"]{padding:10px;font-size:16px;margin-bottom:10px;}
    .btn{padding:10px 14px;font-size:0.85rem;}
    .message{padding:10px 12px;font-size:0.85rem;}
}

/* LANDSCAPE MOBILE */
@media(max-height:500px) and (orientation:landscape){
    .login-box{padding:16px;}
    .login-box h2{margin-bottom:12px;font-size:1.2rem;}
    input[type="text"],input[type="password"]{padding:8px;margin-bottom:8px;}
    .btn{padding:8px 12px;}
}