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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background: #1a1a2e;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    color: #fff;
}

.login-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.login-container .logo {
    margin-bottom: 30px;
}

.login-container h1 {
    font-size: 24px;
    font-weight: 300;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.login-container .subtitle {
    color: #aaa;
    margin-bottom: 30px;
    font-size: 14px;
}

.login-container .form-group {
    margin-bottom: 20px;
    text-align: left;
}

.login-container .form-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 13px;
    color: #ccc;
}

.login-container .form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #444;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 16px;
    transition: border-color 0.3s;
    text-align: center;
}

.login-container .form-group input:focus {
    outline: none;
    border-color: #0086E5;
}

.login-container .form-group input::placeholder {
    color: #888;
    text-align: center;
}

.login-container .btn {
    width: 100%;
    padding: 12px;
    background: #0086E5;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
    margin-top: 10px;
}

.login-container .btn:hover {
    background: #006bb3;
}

.login-container .btn:disabled {
    background: #444;
    cursor: not-allowed;
}

.login-container .footer {
    margin-top: 20px;
    font-size: 12px;
    color: #666;
}

.nas-icon {
    width: 80px;
    height: 80px;
    background: #0086E5;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 36px;
    font-weight: 300;
    box-shadow: 0 4px 12px rgba(0, 134, 229, 0.3);
}

.nas-icon span {
    color: #fff;
}

.error-message {
    color: #ff6b6b;
    font-size: 14px;
    margin-top: 10px;
    padding: 8px;
    background: rgba(255, 0, 0, 0.1);
    border-radius: 6px;
    border: 1px solid rgba(255, 0, 0, 0.2);
    text-align: center;
}

.error-message.blocked {
    color: #ffd93d;
    border-color: rgba(255, 217, 61, 0.3);
    background: rgba(255, 217, 61, 0.1);
}