body {
    background-color: #fff;
    font-family: 'Segoe UI', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 10px;
}

.header {
    text-align: center;
    margin-bottom: 15px;
}

.logo {
    width: 100px;
    height: auto;
    margin-bottom: 10px;
}

h1 {
    font-size: 28px;
    margin: 0;
    color: #000;
}

.subtitle {
    font-size: 14px;
    color: #555;
    margin-top: 5px;
}

.login-box {
    width: 380px;
    padding: 28px 30px;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    background-color: #fff;
    text-align: center;
}

h2 {
    font-size: 20px;
    margin-bottom: 10px;
    margin-top: 2px; 
    color: #000;
}

.input-group {
    text-align: left;
    margin: 20px 0;
    position: relative;
}

.input-group label {
    font-size: 14px;
    color: #222;
    display: flex;
    align-items: center;
    margin-bottom: 6px;
}

.icon {
    font-size: 18px;
    margin-right: 8px;
    color: #000;
}

input {
    width: 100%;
    padding: 12px 40px 12px 14px;
    border: 1px solid #ccc;
    border-radius: 6px;
    background-color: #fdfdfd;
    color: #000;
    font-size: 14px;
    transition: border 0.3s, background-color 0.3s;
    box-sizing: border-box;
}

input:focus {
    border-color: #000;
    background-color: #fff;
    outline: none;
}

.toggle-eye {
    position: absolute;
    right: 12px;
    top: 38px; 
    cursor: pointer;
    font-size: 16px;
    color: #555;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #000;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 20px;
}

button:hover {
    background-color: #333;
}

.error {
    color: red;
    margin-bottom: 10px;
}

.message {
    padding: 12px 15px;          
    margin-bottom: 15px;
    border-radius: 8px;        
    font-weight: 600;             
    text-align: center;
    font-size: 14px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);  
}

.message.success {
    background-color: #e6f4ea;   
    color: #217a38;               
    border: 1px solid #c3e6cb;
}

.message.error {
    background-color: #fdecea;    
    color: #b92c28;             
    border: 1px solid #f5c6cb;
}

.forgot {
    display: block;
    margin-top: 15px;
    font-size: 12px;
    color: #555;
    text-decoration: none;
}

.forgot:hover {
    text-decoration: underline;
}


*{box-sizing:border-box}
img{max-width:100%;height:auto}

body{min-height:100vh;justify-content:center}

.login-box{max-width:100%;width:380px}

@media (max-width:1200px){
    .login-box{width:360px}
    h1{font-size:26px}
}

@media (max-width:992px){
    body{padding:20px}
    .login-box{width:340px;padding:24px}
    h1{font-size:24px}
    h2{font-size:18px}
}

@media (max-width:768px){
    body{padding:20px 15px}
    .header{margin-bottom:20px}
    .logo{width:80px}
    h1{font-size:22px}
    .subtitle{font-size:13px}
    .login-box{width:100%;max-width:400px;padding:22px}
    input{padding:11px 38px 11px 12px;font-size:14px}
    button{padding:11px;font-size:14px}
    .toggle-eye{top:36px;font-size:15px}
}

@media (max-width:576px){
    body{padding:18px 12px}
    .logo{width:70px}
    h1{font-size:20px}
    .subtitle{font-size:12px}
    .login-box{padding:20px;border-radius:10px}
    h2{font-size:17px}
    .input-group{margin:16px 0}
    input{font-size:13px;padding:10px 36px 10px 12px}
    button{padding:10px;font-size:13px}
    .message{font-size:13px;padding:10px 12px}
    .forgot{font-size:11px}
}

@media (max-width:400px){
    body{padding:15px 10px}
    .logo{width:60px}
    h1{font-size:18px}
    .subtitle{font-size:11px}
    .login-box{padding:18px}
    h2{font-size:16px}
    input{font-size:12px}
    button{font-size:12px}
    .toggle-eye{font-size:14px}
}